5,347 results match your criteria Nanoscale research letters[Journal]


Biodegradation Assessment of Poly (Lactic Acid) Filled with Functionalized Titania Nanoparticles (PLA/TiO) under Compost Conditions.

Nanoscale Res Lett 2019 Feb 14;14(1):56. Epub 2019 Feb 14.

State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610065, China.

This paper presents a biodegradation study conducted for 90 days under standardized controlled composting conditions of poly (lactic acid) (PLA) filled with functionalized anatase-titania nanofiller (PLA/TiO nanocomposites). The surface morphology, thermal properties, percentage of biodegradation, and molecular weight changes at different incubation times were evaluated via visual inspection, scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and gel permeation chromatography (GPC) by taking degraded samples from compost at the end of target biodegradation time interval. The rapid increase of crystallinity indicated that the PLA and PLA/TiO nanocomposites had heterogeneous degradation mechanisms under controlled composting conditions. Read More

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http://dx.doi.org/10.1186/s11671-019-2891-4DOI Listing
February 2019

High Methanol Gas-Sensing Performance of SmO/ZnO/SmFeO Microspheres Synthesized Via a Hydrothermal Method.

Nanoscale Res Lett 2019 Feb 14;14(1):57. Epub 2019 Feb 14.

School of Materials Science and Engineering, Yunnan Key Laboratory for Micro/Nano Materials and Technology, Yunnan University, Kunming, China.

In this work, we synthesized SmO/ZnO/SmFeO microspheres by a hydrothermal method combined with microwave assistance to serve as a methanol gas sensor. We investigated the effect on the microstructure at different hydrothermal times (12 h, 18 h, 24 h, and 30 h), and the BET and XPS results revealed that the specific surface area and adsorbed oxygen species were consistent with a microstructure that significantly influences the sensing performance. The gas properties of the SmO-doped ZnO/SmFeO microspheres were also investigated. Read More

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http://dx.doi.org/10.1186/s11671-019-2890-5DOI Listing
February 2019

Large-Scale, Bandwidth-Adjustable, Visible Absorbers by Evaporation and Annealing Process.

Nanoscale Res Lett 2019 Feb 6;14(1):48. Epub 2019 Feb 6.

College of Physics and Electronic Engineering, Sichuan Normal University, Chengdu, 610101, China.

Optical absorbers have received a significant amount of attention due to their wide range of applications in biomedical sensing, solar cell, photon detection, and surface-enhanced Raman spectroscopy. However, most of the optical absorbers are fabricated with high-cost sophisticated nanofabrication techniques, which limit their practical applications. Here, we introduce a cost-effective method to fabricate an optical absorber by using a simple evaporation technique. Read More

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http://dx.doi.org/10.1186/s11671-019-2881-6DOI Listing
February 2019

Low-Temperature Plasma-Enhanced Atomic Layer Deposition of SiO Using Carbon Dioxide.

Nanoscale Res Lett 2019 Feb 12;14(1):55. Epub 2019 Feb 12.

Department of Electronics and Nanoengineering, Aalto University, Tietotie 3, FI-02150, Espoo, Finland.

In this work, we report the successful growth of high-quality SiO films by low-temperature plasma-enhanced atomic layer deposition using an oxidant which is compatible with moisture/oxygen sensitive materials. The SiO films were grown at 90 °C using CO and Bis(tertiary-butylamino)silane as process precursors. Growth, chemical composition, density, optical properties, and residual stress of SiO films were investigated. Read More

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http://dx.doi.org/10.1186/s11671-019-2889-yDOI Listing
February 2019

Self-Assembly Stability and Variability of Bacterial Microcompartment Shell Proteins in Response to the Environmental Change.

Nanoscale Res Lett 2019 Feb 12;14(1):54. Epub 2019 Feb 12.

Institute of Integrative Biology, University of Liverpool, L69 7ZB, Liverpool, UK.

Bacterial microcompartments (BMCs) are proteinaceous self-assembling organelles that are widespread among the prokaryotic kingdom. By segmenting key metabolic enzymes and pathways using a polyhedral shell, BMCs play essential roles in carbon assimilation, pathogenesis, and microbial ecology. The BMC shell is composed of multiple protein homologs that self-assemble to form the defined architecture. Read More

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http://dx.doi.org/10.1186/s11671-019-2884-3DOI Listing
February 2019

Dielectric Enhancement of Atomic Layer-Deposited AlO/ZrO/AlO MIM Capacitors by Microwave Annealing.

Nanoscale Res Lett 2019 Feb 11;14(1):53. Epub 2019 Feb 11.

Department of Materials Science, Fudan University, Shanghai, 200433, People's Republic of China.

For metal-insulator-metal (MIM) capacitors applicated in the fields of RF, DRAM, and analog/mixed-signal integrated circuits, a high capacitance density is imperative with the downscaling of the device feature size. In this work, the microwave annealing technique is investigated to enhance the dielectric characteristics of AlO/ZrO/AlO based MIM capacitors. The results show that the permittivity of ZrO is increased to 41. Read More

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http://dx.doi.org/10.1186/s11671-019-2874-5DOI Listing
February 2019

Nanostructured Pd-Based Electrocatalyst and Membrane Electrode Assembly Behavior in a Passive Direct Glycerol Fuel Cell.

Nanoscale Res Lett 2019 Feb 11;14(1):52. Epub 2019 Feb 11.

Fuel Cell Institute, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor, Malaysia.

The aim of this study was to synthesize, characterize, and observe the catalytic activity of PdAu supported by vapor-grown carbon nanofiber (VGCNF) anode catalyst prepared via the chemical reduction method. The formation of the single-phase compounds was confirmed by X-ray diffraction (XRD) and Rietveld refinement analysis, which showed single peaks corresponding to the (111) plane of the cubic crystal structure. Further analysis was carried out by field emission scanning emission microscopy (FESEM), energy dispersive X-ray analysis (EDX), nitrogen adsorption/desorption measurements, and X-ray photoelectron spectroscopy (XPS). Read More

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http://dx.doi.org/10.1186/s11671-019-2871-8DOI Listing
February 2019

Atomic Layer-Deposited HfAlOx-Based RRAM with Low Operating Voltage for Computing In-Memory Applications.

Nanoscale Res Lett 2019 Feb 7;14(1):51. Epub 2019 Feb 7.

State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, 200433, China.

With Moore's law closing to its physical limit, traditional von Neumann architecture is facing a challenge. It is expected that the computing in-memory architecture-based resistive random access memory (RRAM) could be a potential candidate to overcome the von Neumann bottleneck problem of traditional computers [Backus, J, Can programming be liberated from the von Neumann style?, 1977]. In this work, HfAlOx-based RRAM which is compatible with CMOS technology was fabricated by an atomic layer deposition (ALD) process. Read More

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http://dx.doi.org/10.1186/s11671-019-2875-4DOI Listing
February 2019

Fabrication of CdTe QDs/BiOI-Promoted TiO Hollow Microspheres with Superior Photocatalytic Performance Under Simulated Sunlight.

Nanoscale Res Lett 2019 Feb 6;14(1):50. Epub 2019 Feb 6.

College of Materials Science and Engineering, Qingdao University of Science and Technology, Zhengzhou Road 53, Qingdao, 266042, China.

Hollow and heterostructured architectures are recognized as an effective approach to improve photocatalytic performance. In this work, ternary TiO/CdTe/BiOI with hollow structure was constructed via a step-by-step method. In addition, the effect of TiO structural regulation and the energy band alignment of BiOI and CdTe quantum dots (CdTe QDs) with TiO in TiO/CdTe/BiOI on photocatalytic dye removal were also studied. Read More

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http://dx.doi.org/10.1186/s11671-019-2878-1DOI Listing
February 2019

Preparation and Characterization of Tadpole- and Sphere-Shaped Hemin Nanoparticles for Enhanced Solubility.

Nanoscale Res Lett 2019 Feb 6;14(1):47. Epub 2019 Feb 6.

College of Food Science and Engineering, Qingdao Agricultural University, 700 Changcheng Road, Chengyang District, Qingdao, 266109, China.

Hemin is a potent iron supplement. A major limitation of the applicability of hemin is its extremely low aqueous solubility and bioavailability. The aim of this work is to prepare hemin nanoparticles with improved solubility. Read More

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http://dx.doi.org/10.1186/s11671-019-2880-7DOI Listing
February 2019

Well-Aligned TiO Nanotube Arrays with Ag Nanoparticles for Highly Efficient Detection of Fe Ion.

Nanoscale Res Lett 2019 Feb 6;14(1):49. Epub 2019 Feb 6.

Science and Technology on Electronic Test & Measurement Laboratory, North University of China, No.3, Xue Yuan Road, Taiyuan, 030051, Shanxi, China.

Nowadays, determination of the iron ions with high sensitivity and selectivity with novel methods becomes a matter of urgency for monitoring healthy body and environment. In this paper, for the first time, we present a set of high-performance TiO nanotube arrays which are quite sensitive to iron ions. Firstly, the anodic oxidation method was adopted to prepare ordered TiO nanotube arrays, followed by functionalized Ag nanoparticle deposition with the enhancement ability in iron ion sensing. Read More

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http://dx.doi.org/10.1186/s11671-019-2883-4DOI Listing
February 2019
2.779 Impact Factor

Direct Growth of Single Crystalline GaN Nanowires on Indium Tin Oxide-Coated Silica.

Nanoscale Res Lett 2019 Feb 5;14(1):45. Epub 2019 Feb 5.

Photonics Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.

In this work, we demonstrated the direct growth of GaN nanowires on indium tin oxide (ITO)-coated fused silica substrate. The nanowires were grown catalyst-free using plasma-assisted molecular beam epitaxy (PA-MBE). The effect of growth condition on the morphology and quality of the nanowires is systematically investigated. Read More

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http://dx.doi.org/10.1186/s11671-019-2870-9DOI Listing
February 2019

Omnidirectional Absorber by the Void Plasmon Effect in the Visible Region with Greatly Enhanced Localized Electric Field.

Nanoscale Res Lett 2019 Feb 5;14(1):46. Epub 2019 Feb 5.

College of Electronic Science and Technology, Shenzhen University, Shenzhen, 518060, People's Republic of China.

We propose and investigate a wide-angle and high-efficiency absorber by using the void plasmon (VP) effect in a Fabry-Perot (FP)-like system, which consists of a perforated metal film and a ground metal plane separated by a dielectric spacer. A hybrid FP/VP resonance mode contributes to the high absorption efficiency. Besides the increased absorption, greatly enhanced localized electric-field intensity at "hot spots" (~ 2284 times) can be achieved. Read More

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http://dx.doi.org/10.1186/s11671-019-2873-6DOI Listing
February 2019

Properties of the Geometric Phase in Electromechanical Oscillations of Carbon-Nanotube-Based Nanowire Resonators.

Nanoscale Res Lett 2019 Feb 5;14(1):44. Epub 2019 Feb 5.

Department of Physics, Kyonggi University, Gwanggyosan-ro, Yeongtong-gu, Suwon, Gyeonggi-do, 16227, Republic of Korea.

The geometric phase is an extra phase evolution in the wave function of vibrations that is potentially applicable in a broad range of science and technology. The characteristics of the geometric phase in the squeezed state for a carbon-nanotube-based nanowire resonator have been investigated by means of the invariant operator method. The introduction of a linear invariant operator, which is useful for treating a complicated time-dependent Hamiltonian system, enabled us to derive the analytical formula of the geometric phase. Read More

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http://dx.doi.org/10.1186/s11671-019-2855-8DOI Listing
February 2019

A High-Performance Rectangular Gate U Channel FETs with Only 2-nm Distance between Source and Drain Contacts.

Nanoscale Res Lett 2019 Feb 4;14(1):43. Epub 2019 Feb 4.

School of EECS Eng. and ISRC (Inter-University Semiconductor Research Center), Seoul National University, Shinlim-Dong, Kwanak-Gu, Seoul, 151-742, Korea.

A novel high-performance rectangular gate U channel FET (RGUC FET) for extreme integrated distance between source and drain contacts is proposed in this paper. The RGUC FET represents nearly ideal subthreshold characteristics till the distance between source/drain (S/D) contacts reduced to 2 nm. Different from the other recessed or U-shaped channel-based FETs, the gate contacts do not need to be formed in the recessed region but only in a layer of spacer for the insulation between the two vertical parts on both sides of the U channel. Read More

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http://dx.doi.org/10.1186/s11671-019-2879-0DOI Listing
February 2019

Altering the Optical Properties of GaAsSb-Capped InAs Quantum Dots by Means of InAlAs Interlayers.

Nanoscale Res Lett 2019 Feb 1;14(1):41. Epub 2019 Feb 1.

School of Electrical and Electronic Engineering, The University of Manchester, Sackville Street, Manchester, M13 9PL, UK.

In this work, we investigate the optical properties of InAs quantum dots (QDs) capped with composite InAlAs/GaAsSb strain-reducing layers (SRLs) by means of high-resolution X-ray diffraction (HRXRD) and photoluminescence (PL) spectroscopy at 77 K. Thin InAlAs layers with thickness t = 20 Å, 40 Å, and 60 Å were inserted between the QDs and a 60-Å-thick GaAsSb layer. The type II emissions observed for GaAsSb-capped InAs QDs were suppressed by the insertion of the InAlAs interlayer. Read More

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http://dx.doi.org/10.1186/s11671-019-2877-2DOI Listing
February 2019

Smart Materials for Environmental Remediation Based on Two-Component Gels: Room-Temperature-Phase-Selective Gelation for the Removal of Organic Pollutants Including Nitrobenzene/O-Dichlorobenzene, and Dye Molecules from the Wastewater.

Nanoscale Res Lett 2019 Feb 1;14(1):42. Epub 2019 Feb 1.

School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China.

Novel two-component gel systems based on aliphatic acid-hydroxy/base interaction were developed as smart materials for environmental remediation. The G1-A16 gelator could be used directly as a powder form to selectively gel aromatic solvents (nitrobenzene and o-dichlorobenzene) from their mixtures with wastewater (containing 0.5 M sodium nitrate and 0. Read More

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http://dx.doi.org/10.1186/s11671-019-2865-6DOI Listing
February 2019
1 Read

Recovery Performance of Ge-Doped Vertical GaN Schottky Barrier Diodes.

Nanoscale Res Lett 2019 Jan 31;14(1):40. Epub 2019 Jan 31.

College of Materials Science and Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Special Functional Materials, Chinese Engineering and Research Institute of Microelectronics, Shenzhen University, Shenzhen, 518060, People's Republic of China.

Vertical GaN Schottky barrier diodes (SBDs) were fabricated on Ge-doped free-standing GaN substrates. The crystal quality of the SBDs was characterized by cathode luminescence measurement, and the dislocation density was determined to be ~ 1.3 × 10 cm. Read More

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http://dx.doi.org/10.1186/s11671-019-2872-7DOI Listing
January 2019

All-Si Photodetectors with a Resonant Cavity for Near-Infrared Polarimetric Detection.

Nanoscale Res Lett 2019 Jan 30;14(1):39. Epub 2019 Jan 30.

Nanolithography and Application Research Group, State Key Lab of Asic and System, Fudan University, Shanghai, China.

This work developed an all-Si photodetector with a surface plasmonic resonator formed by a sub-wavelength Au grating on the top of a Si-nanowire array and the same one beside the wires. The Au/Si interface with a Schottky barrier allows the photo-electron detection in near-infrared wavelength based on the internal emission of hot electrons generated by the surface plasmons in the cavity. Meanwhile, the Au sub-wavelength grating on the Si nanowire array acts as a polarizer for polarimetric detection. Read More

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http://dx.doi.org/10.1186/s11671-019-2868-3DOI Listing
January 2019

Photothermal Effect of Modulating Laser Irradiation on the Thermal Diffusivity of AlO Nanofluids.

Nanoscale Res Lett 2019 Jan 28;14(1):37. Epub 2019 Jan 28.

Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.

Modulated continuous wave (CW) lasers cause photothermal effect that leads to rapid optical absorption and generation of thermal waves around the irradiated nanostructures. In this work, we examined the effect of modulated CW laser irradiation on the particle fragmentation process to enhance the thermal diffusivity of nanofluids. A facile and cost-effective diode laser was applied to reduce the agglomerated size of AlO nanoparticles in deionized water. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-019-2869-2DOI Listing
January 2019
8 Reads

Ultra-Low Specific On-resistance Lateral Double-Diffused Metal-Oxide-Semiconductor Transistor with Enhanced Dual-Gate and Partial P-buried Layer.

Nanoscale Res Lett 2019 Jan 28;14(1):38. Epub 2019 Jan 28.

State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China.

An ultra-low specific on-resistance (R) lateral double-diffused metal-oxide-semiconductor transistor (LDMOS) with enhanced dual-gate and partial P-buried layer is proposed and investigated in this paper. On-resistance analytical model for the proposed LDMOS is built to provide an in-depth insight into the relationship between the drift region resistance and the channel region resistance. N-buried layer is introduced under P-well to provide a low-resistance conduction path and reduce the resistance of the channel region significantly. Read More

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http://dx.doi.org/10.1186/s11671-019-2866-5DOI Listing
January 2019

Efficient Polarization Beam Splitter Based on All-Dielectric Metasurface in Visible Region.

Nanoscale Res Lett 2019 Jan 25;14(1):34. Epub 2019 Jan 25.

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China.

In this paper, we present an all-dielectric gradient metasurface, composed of periodic arrangement of differently sized cross-shaped silicon nanoblocks resting on the fused silica substrate, to realize the function of polarization split in visible region. The cross-shaped silicon block arrays can induce two opposite transmission phase gradients along the x-direction for the linear x-polarization and y-polarization. By properly designing, the metasurface can separate the linearly polarized light into x- and y-polarized ones, which propagate at the same angle along the left and right sides of the normal incidence in the x-z plane. Read More

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http://dx.doi.org/10.1186/s11671-019-2867-4DOI Listing
January 2019
1 Read

A Novel Contrast Agent Based on Magnetic Nanoparticles for Cholesterol Detection as Alzheimer's Disease Biomarker.

Nanoscale Res Lett 2019 Jan 25;14(1):36. Epub 2019 Jan 25.

Centre for Biomedical Technology (CTB), Universidad Politécnica de Madrid, Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain.

Background: Considering the high incidence of Alzheimer's disease among the world population over the years, and the costs that the disease poses in sanitary and social terms to countries, it is necessary to develop non-invasive diagnostic tests that allow to detect early biomarkers of the disease. Within the early diagnosis methods, the development of contrast agents for magnetic resonance imaging becomes especially useful. Accumulating evidence suggests that cholesterol may play a role in the pathogenesis of Alzheimer's disease since abnormal deposits of cholesterol surrounding senile plaques have been described in animal transgenic models and patients with Alzheimer's disease. Read More

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http://dx.doi.org/10.1186/s11671-019-2863-8DOI Listing
January 2019
3 Reads

Catalytic Application and Mechanism Studies of Argentic Chloride Coupled Ag/Au Hollow Heterostructures: Considering the Interface Between Ag/Au Bimetals.

Nanoscale Res Lett 2019 Jan 25;14(1):35. Epub 2019 Jan 25.

Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, People's Republic of China.

For an economical use of solar energy, photocatalysts that are sufficiently efficient, stable, and capable of harvesting light are required. Composite heterostructures composed of noble metals and semiconductors exhibited the excellent in catalytic application. Here, 1D Ag/Au/AgCl hollow heterostructures are synthesized by galvanic replacement reaction (GRR) from Ag nanowires (NWs). Read More

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http://dx.doi.org/10.1186/s11671-019-2862-9DOI Listing
January 2019
1 Read
2.779 Impact Factor

A Nanoscale Low-Power Resistorless Voltage Reference with High PSRR.

Nanoscale Res Lett 2019 Jan 24;14(1):33. Epub 2019 Jan 24.

State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China.

In this paper, a nano-watt resistorless subthreshold voltage reference with high-power supply rejection ratio (PSRR) is presented. A self-biased MOS voltage divider is proposed to provide bias current for whole voltage reference, which is a positive temperature coefficient (TC) current containing threshold voltage characteristics. By injecting the generated current into a transistor with a different threshold voltage, a delta threshold voltage with a greatly reduced negative TC is realized and temperature-compensated by a generated positive TC item at the same time. Read More

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http://dx.doi.org/10.1186/s11671-019-2864-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6346697PMC
January 2019
1 Read

Coupled Resonance Enhanced Modulation for a Graphene-Loaded Metamaterial Absorber.

Nanoscale Res Lett 2019 Jan 22;14(1):32. Epub 2019 Jan 22.

THz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology, Shenzhen University, Shenzhen, 518060, China.

A graphene-loaded metamaterial absorber is investigated in the mid-infrared region. The light-graphene interaction is greatly enhanced by virtue of the coupled resonance through a cross-shaped slot. The absorption peaks show a significant blueshift with increasing Fermi level, enabling a wide range of tunability for the absorber. Read More

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http://dx.doi.org/10.1186/s11671-019-2852-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6342740PMC
January 2019
1 Read

Measurement and Evaluation of Local Surface Temperature Induced by Irradiation of Nanoscaled or Microscaled Electron Beams.

Nanoscale Res Lett 2019 Jan 22;14(1):31. Epub 2019 Jan 22.

Key Laboratory for the Physics & Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing, 100871, China.

Electron beams (e-beams) have been applied as detecting probes and clean energy sources in many applications. In this work, we investigated several approaches for measurement and estimation of the range and distribution of local temperatures on a subject surface under irradiation of nano-microscale e-beams. We showed that a high-intensity e-beam with current density of 10 A/cm could result in vaporization of solid Si and Au materials in seconds, with a local surface temperature higher than 3000 K. Read More

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http://dx.doi.org/10.1186/s11671-018-2821-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6342749PMC
January 2019
3 Reads

Influence of Graphene Oxide on the Ethanol Permeability and Ionic Conductivity of QPVA-Based Membrane in Passive Alkaline Direct Ethanol Fuel Cells.

Nanoscale Res Lett 2019 Jan 18;14(1):28. Epub 2019 Jan 18.

Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.

Passive alkaline-direct ethanol fuel cells (alkaline-DEFCs) appear to be suitable for producing sustainable energy for portable devices. However, ethanol crossover is a major challenge for passive alkaline-DEFC systems. This study investigated the performance of a crosslinked quaternized poly (vinyl alcohol)/graphene oxide (QPVA/GO) composite membrane to reduce ethanol permeability, leading in enhancement of passive alkaline-DEFC performance. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-018-2836-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6338673PMC
January 2019
4 Reads

Free-Standing Selenium Impregnated Carbonized Leaf Cathodes for High-Performance Sodium-Selenium Batteries.

Nanoscale Res Lett 2019 Jan 18;14(1):30. Epub 2019 Jan 18.

College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, Guangdong, People's Republic of China.

A novel approach of carbonizing leaves by thermal pyrolysis with melt diffusion followed by selenium vapor deposition is developed to prepare the carbon-selenium composite cathodes for sodium-selenium batteries. The carbonized leaf possesses internal hierarchical porosity and high mass loading; therefore, the composite is applied as a binder- and current collector-free cathode, exhibiting an excellent rate capability and a high reversible specific capacity of 520 mA h g at 100 mA g after 120 cycles and 300 mA h g even at 2 A g after 500 cycles without any capacity loss. Moreover, the unique natural three-dimensional structure and moderate graphitization degree of leaf-based carbon facilitate Na/e transport to activate selenium which can guarantee a high utilization of the selenium during discharge/charge process, demonstrating a promising strategy to fabricate advanced electrodes toward the sodium-selenium batteries. Read More

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http://dx.doi.org/10.1186/s11671-019-2861-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6338612PMC
January 2019
1 Read

Bioimaging Tools Based on Polyelectrolyte Microcapsules Encoded with Fluorescent Semiconductor Nanoparticles: Design and Characterization of the Fluorescent Properties.

Nanoscale Res Lett 2019 Jan 18;14(1):29. Epub 2019 Jan 18.

Laboratory of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 31 Kashirskoye Shosse, Moscow, Russian Federation, 115409.

Fluorescent imaging is a widely used technique for detecting and monitoring the distribution, interaction, and transformation processes at molecular, cellular, and tissue level in modern diagnostic and other biomedical applications. Unique photophysical properties of fluorescent semiconductor nanocrystals "quantum dots" (QDs) make them advanced fluorophores for fluorescent labeling of biomolecules or optical encoding of microparticles to be used as bioimaging and theranostic agents in targeted delivery, visualization, diagnostics, and imaging. This paper reports on the results of development of an improved approach to the optical encoding of polyelectrolyte microcapsules with stable, covered with the multifunctional polyethyleneglycol derivatives water-soluble QDs, as well as characterization of the optical properties, morphological and structural properties of the encoded microcapsules. Read More

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http://dx.doi.org/10.1186/s11671-019-2859-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6338610PMC
January 2019
1 Read

A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS.

Nanoscale Res Lett 2019 Jan 17;14(1):27. Epub 2019 Jan 17.

MicroNano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province & College of Information Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China.

This paper presents a new flexible magnetic field sensor based on Ag nanowires and magnetic nanoparticles doped in polydimethylsiloxane (AgNWs & MNs-PDMS) with sandwich structure. The MNs act as the sensitive unit for magnetic field sensing in this work. Besides, the conductive networks are made by AgNWs during deformation. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-018-2826-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6336596PMC
January 2019
4 Reads

Exposure to Titanium Dioxide Nanoparticles During Pregnancy Changed Maternal Gut Microbiota and Increased Blood Glucose of Rat.

Nanoscale Res Lett 2019 Jan 17;14(1):26. Epub 2019 Jan 17.

State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211100, China.

Titanium dioxide nanoparticles (TiO NPs) were used worldwide for decades, and pregnant women are unable to avoid exposing to them. Studies revealed that TiO NPs could kill many kinds of bacteria, but whether they would affect the composition of gut microbiota, especially during pregnancy, was seldom reported. And, what adverse effects may be brought to pregnant females was also unknown. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-018-2834-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6336591PMC
January 2019
9 Reads

Efficient TiO Surface Treatment Using CsCO for Solution-Processed Planar-Type SbS Solar Cells.

Nanoscale Res Lett 2019 Jan 17;14(1):25. Epub 2019 Jan 17.

Convergence Research Center for Solar Energy, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea.

We report a highly effective surface treatment method for planar-type SbS solar cells by employing a CsCO-modified compact TiO (c-TiO) electron transport layer. It is found that surface treatment using a CsCO solution can shift the work function of c-TiO upward and reduce its surface roughness. As a result, compared with the power conversion efficiency of untreated solar cells, that of the treated solar cells with a glass/FTO/c-TiO(/CsCO)/SbS/P3HT/Au structure significantly improved from 2. Read More

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http://dx.doi.org/10.1186/s11671-019-2858-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6336595PMC
January 2019
1 Read

Biocompatible Chitosan Nanobubbles for Ultrasound-Mediated Targeted Delivery of Doxorubicin.

Nanoscale Res Lett 2019 Jan 16;14(1):24. Epub 2019 Jan 16.

Department of Ultrasound, Qilu Hospital of Shandong University, West Wenhua Road, Jinan, Shandong, China.

Ultrasound-targeted delivery of nanobubbles (NBs) has become a promising strategy for noninvasive drug delivery. The biosafety and drug-transporting ability of NBs have been a research hotspot, especially regarding chitosan NBs due to their biocompatibility and high biosafety. Since the drug-carrying capacity of chitosan NBs and the performance of ultrasound-assisted drug delivery remain unclear, the aim of this study was to synthesize doxorubicin hydrochloride (DOX)-loaded biocompatible chitosan NBs and assess their drug delivery capacity. Read More

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http://dx.doi.org/10.1186/s11671-019-2853-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6335234PMC
January 2019
1 Read
2.779 Impact Factor

A High-Accuracy AlGaN/GaN Reverse Blocking CRD (RB-CRD) with Hybrid Trench Cathode.

Nanoscale Res Lett 2019 Jan 15;14(1):23. Epub 2019 Jan 15.

School of Electronic Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China.

An AlGaN/GaN lateral reverse blocking current regulating diode (RB-CRD) with trench Schottky anode and hybrid trench cathode has been proposed and experimentally demonstrated on silicon substrate. The Schottky barrier diode (SBD) integrated in the anode exhibits a turn-on voltage of 0.7 V and a reverse breakdown voltage of 260 V. Read More

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http://dx.doi.org/10.1186/s11671-019-2860-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6333593PMC
January 2019
2 Reads

A Highly Nanoporous Nitrogen-Doped Carbon Microfiber Derived from Bioresource as a New Kind of ORR Electrocatalyst.

Nanoscale Res Lett 2019 Jan 15;14(1):22. Epub 2019 Jan 15.

College of Basic Medical Sciences, Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, People's Republic of China.

Synthesis of metal-free carbon-based electrocatalysts for oxygen reduction reaction (ORR) to replace the conventional platinum-based catalysts has currently become a hot topic of research. This work proposes an activation-assisted carbonization strategy for the fabrication of nitrogen-doped nanoporous carbon microfibers (Me-CFZ-900) with a high BET surface area (~ 929.4 m g) via using melamine as a promoter/nitrogen source and bamboo-carbon biowastes as the carbon source with the help of a zinc chloride activator. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-019-2854-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6333595PMC
January 2019
8 Reads

Amine-Aldehyde Chemical Conjugation on a Potassium Hydroxide-Treated Polystyrene ELISA Surface for Nanosensing an HIV-p24 Antigen.

Nanoscale Res Lett 2019 Jan 14;14(1):21. Epub 2019 Jan 14.

Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000, Kangar, Perlis, Malaysia.

The enzyme-linked immunosorbent assay (ELISA) has been widely used for disease surveillance and drug screening due to its relatively higher accuracy and sensitivity. Fine-tuning the ELISA is mandatory to elevate the specific detection of biomolecules at a lower abundance. Towards this end, higher molecular capture on the polystyrene (PS) ELISA surface is crucial for efficient detection, and it could be attained by immobilizing the molecules in the correct orientation. Read More

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http://dx.doi.org/10.1186/s11671-018-2848-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6331347PMC
January 2019
1 Read

The Influence of Materials, Heterostructure, and Orientation for Nanohybrids on Photocatalytic Activity.

Nanoscale Res Lett 2019 Jan 14;14(1):20. Epub 2019 Jan 14.

College of Chemical Engineering and Material, Quanzhou Normal University, Quanzhou, 362000, Fujian, China.

In this work, different structures based on electrodeposited n-type ZnO nanorods and p-type CuO, CuSCN, and NiO nanostructures are fabricated for the degradation of methyl orange (MO). The influence of materials, heterostructure, and orientation for nanohybrids on photocatalytic activity is discussed for the first time. The heterojunction structures show remarkable enhancement compared to the bare semiconductor. Read More

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http://dx.doi.org/10.1186/s11671-019-2851-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6331350PMC
January 2019
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A General One-Pot Approach to Synthesize Binary and Ternary Metal Sulfide Nanocrystals.

Nanoscale Res Lett 2019 Jan 11;14(1):19. Epub 2019 Jan 11.

Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing Jiao Tong University, Beijing, 100044, China.

A general one-pot approach is developed to synthesize a series of binary metal sulfide nanocrystals (NCs) including PbS, CuS, ZnS, CdS, AgS, and ternary CuInS and CdS:Cu(I) NCs. This synthetic approach involves thermal decomposition of the mixture of inorganic metal salts and n-dodecanethiol (DDT) without pre-synthesis of any organometallic precursors. In this method, layered metal-thiolate compound is formed at the beginning of the reaction and then this intermediate compound is decomposed into small particles, leading to further growth as the reaction time increases. Read More

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http://dx.doi.org/10.1186/s11671-019-2856-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6329689PMC
January 2019
2 Reads

Performance Enhancement of CdS/CdSe Quantum Dot-Sensitized Solar Cells with (001)-Oriented Anatase TiO Nanosheets Photoanode.

Nanoscale Res Lett 2019 Jan 11;14(1):18. Epub 2019 Jan 11.

Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 300, Taiwan.

CdS/CdSe quantum dot-sensitized solar cells (QDSSCs) were fabricated on two types of TiO photoanodes, namely nanosheets (NSs) and nanoparticles. The TiO NSs with high (001)-exposed facets were prepared via a hydrothermal method, while the TiO nanoparticles used the commercial Degussa P-25. It was found that the pore size, specific surface area, porosity, and electron transport properties of TiO NSs were generally superior to those of P-25. Read More

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http://dx.doi.org/10.1186/s11671-018-2842-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6329687PMC
January 2019
2 Reads

Correction to: Carbon Dots @ Platinum Porphyrin Composite as Theranostic Nanoagent for Efficient Photodynamic Cancer Therapy.

Nanoscale Res Lett 2019 Jan 9;14(1):16. Epub 2019 Jan 9.

Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Hong Kong, People's Republic of China.

AbstractFollowing publication of the original article [1], it was flagged that Fig. 4 and Fig. 5 in the article were (incorrectly) formatted with a yellow highlighting of the background of the figures. Read More

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http://dx.doi.org/10.1186/s11671-018-2838-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6326911PMC
January 2019
1 Read

SnSe Field-Effect Transistor with High On/Off Ratio and Polarity-Switchable Photoconductivity.

Nanoscale Res Lett 2019 Jan 9;14(1):17. Epub 2019 Jan 9.

School of Sciences, China University of Geosciences, Beijing, 100083, China.

SnSe field-effect transistor was fabricated based on exfoliated few-layered SnSe flake, and its electrical and photoelectric properties have been investigated in detail. With the help of a drop of de-ionized (DI) water, the SnSe FET can achieve an on/off ratio as high as ~ 10 within 1 V bias, which is ever extremely difficult for SnSe due to its ultrahigh carrier density (10/cm). Moreover, the subthreshold swing and mobility are both improved to ∼ 62 mV/decade and ~ 127 cm V s at 300 K, which results from the efficient screening by the liquid dielectric gate. Read More

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http://dx.doi.org/10.1186/s11671-019-2850-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6326916PMC
January 2019
1 Read

RGD-HK Peptide-Functionalized Gold Nanorods Emerge as Targeted Biocompatible Nanocarriers for Biomedical Applications.

Nanoscale Res Lett 2019 Jan 8;14(1):13. Epub 2019 Jan 8.

Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box: 14115-154, Tehran, Iran.

Gold nanorods (GNRs) have been nominated as a promising candidate for a variety of biological applications; however, the cationic surfactant layer that surrounds a nanostructure places limits on its biological applicability. Herein, CTAB-GNRs were functionalized via a ligand exchange method using a (C(HK)4-mini PEG-RGD)-peptide to target the overexpressed αvβ3 integrin in cancerous cells, increase the biocompatibility, and gain the ability of gene/drug delivery, simultaneously. To confirm an acceptable functionalization, UV-Visible, FTIR, and Raman spectroscopy, zeta potential, and transmission electron microscopy of nanostructures were done. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-018-2828-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325059PMC
January 2019
2 Reads

RTN and Annealing Related to Stress and Temperature in FIND RRAM Array.

Nanoscale Res Lett 2019 Jan 8;14(1):12. Epub 2019 Jan 8.

Institute of Electronics Engineering, National Tsing Hua University, Hsinchu, Taiwan.

In this work, an observation on random telegraph noise (RTN) signal in the read current of a FinFET dielectric RRAM (FIND RRAM) device is presented. The RTN signal of a FIND RRAM cell is found to change after the device being subjected to cycling stress. After undergoing cycling stress, RRAM cells have a stronger tendency to show more frequent and intense RTN signals. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-018-2846-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325054PMC
January 2019
5 Reads

High mobility Ge pMOSFETs with amorphous Si passivation: impact of surface orientation.

Nanoscale Res Lett 2019 Jan 8;14(1):15. Epub 2019 Jan 8.

State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi'an, 710071, China.

We report the amorphous Si passivation of Ge pMOSFETs fabricated on (001)-, (011)-, and (111)-orientated surfaces for advanced CMOS and thin film transistor applications. Amorphous Si passivation of Ge is carried out by magnetron sputtering at room temperature. With the fixed thickness of Si t, (001)-oriented Ge pMOSFETs achieve the higher on-state current I and effective hole mobility μ compared to the devices on other orientations. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-018-2847-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325052PMC
January 2019
5 Reads

Ultra-stable Electrochemical Sensor for Detection of Caffeic Acid Based on Platinum and Nickel Jagged-Like Nanowires.

Nanoscale Res Lett 2019 Jan 8;14(1):11. Epub 2019 Jan 8.

College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, People's Republic of China.

Electrochemical sensors have the high sensitivity, fast response, and simple operation for applications in biological, medical, and chemical detection, but limited by the poor stability and high cost of the electrode materials. In this work, we used PtNi lagged-like nanowire for caffeic acid (CA) electrochemical detection. The removal of outer layer Ni during reaction process contributed to the rehabilitation of active Pt sites at the surface, leading to the excellent electrocatalytic behavior of CA sensing. Read More

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http://dx.doi.org/10.1186/s11671-018-2839-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325053PMC
January 2019
1 Read
2.779 Impact Factor

Perovskite Nanoparticles Toxicity Study on Airway Epithelial Cells.

Nanoscale Res Lett 2019 Jan 8;14(1):14. Epub 2019 Jan 8.

Bioengineering Program, School of Engineering, University of California at Merced, 5200 North Lake RD, Merced, CA, 95343, USA.

Research on the toxicity of nanoparticles has developed over recent years due to their increasing prevalence in common everyday materials. Various nanoparticles have been reported to promote and induce mucus secretion, which could potentially lead to airway damages and respiratory complications. Lanthanum strontium manganite (LSM) is a nanoparticle widely used in solar oxidized fuel cells (SOFCs) due to its high electrical conductivity, high electrochemical activity for O reduction reaction, high thermal stability and compatibility of SOFC electrolytes, and most importantly, its microstructural stability and long-term performance. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-018-2845-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325058PMC
January 2019
4 Reads

Temperature-Dependent Electrical Transport Properties of Individual NiCoO Nanowire.

Nanoscale Res Lett 2019 Jan 8;14(1):10. Epub 2019 Jan 8.

Key Lab for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, 475004, People's Republic of China.

Understanding the electrical transport properties of individual nanostructures is of great importance to the construction of high-performance nanodevices. NiCoO nanowires have been investigated widely as the electrodes in electrocatalysis, supercapacitors, and lithium batteries. However, the exact electrical transport mechanism of an individual NiCoO nanowire is still ambiguous, which is an obstacle for improving the performance improvement of energy storage devices. Read More

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http://dx.doi.org/10.1186/s11671-018-2844-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325049PMC
January 2019
1 Read

Thermal Conductivity of Two Types of 2D Carbon Allotropes: a Molecular Dynamics Study.

Nanoscale Res Lett 2019 Jan 7;14(1). Epub 2019 Jan 7.

Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, 712100, China.

The thermal properties of the two novel 2D carbon allotropes with five-five-eight-membered rings are explored using molecular dynamics simulations. Our results reveal that the thermal conductivity increases monotonically with increasing size. The thermal conductivities of infinite sizes are obtained by linear relationships of the inverse length and inverse thermal conductivity. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-018-2831-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6323047PMC
January 2019
10 Reads

Oil nanoencapsulation: development, application, and incorporation into the food market.

Nanoscale Res Lett 2019 Jan 7;14(1). Epub 2019 Jan 7.

Department of Food Science and Technology, Federal University of Santa Catarina, Admar Gonzaga Highway, 1346, Itacorubi. 88034-000, Florianópolis, Santa Catarina, Brazil.

Oils are very important substances in human nutrition. However, they are sensitive to oxygen, heat, moisture, and light. In recent years, there has been a growing interest in the modification technology of oils. Read More

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http://dx.doi.org/10.1186/s11671-018-2829-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6323048PMC
January 2019
1 Read