240,386 results match your criteria interface study

Novel photosensitive dual-anisotropic conductive Janus film endued with magnetic-luminescent properties and derivative 3D structures.

J Colloid Interface Sci 2021 May 26;601:899-914. Epub 2021 May 26.

Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China.

A new photosensitive dual-anisotropic conductive Janus film (PDCJF) is proposed for the first time. It is rationally designed and manufactured by facile electrospinning. PDCJF is firstly constructed using 2,7-dibromo-9-fluorenone (DBF) with photoconductive and luminescent properties. Read More

View Article and Full-Text PDF

Modelling the precipitation of nanoparticles in a closed medium in the presence of seeds: Application to amorphous silica synthesis.

J Colloid Interface Sci 2021 Apr 6;601:843-852. Epub 2021 Apr 6.

Université de Strasbourg/EOST, CNRS, Institut Terre et Environnement Strasbourg, 5 rue René Descartes, Strasbourg Cedex F-67084, France.

Seed-mediated methods are widely used in industrial or academic laboratories for the synthesis of nanoparticles of controlled shape and size. In the natural medium, precipitation of secondary minerals also often take place on seeds. In this context, we have devised a formalism which accounts for the competition between seed growth and nucleation and growth of secondary particles in an initially over-saturated aqueous solution. Read More

View Article and Full-Text PDF

Quantitative detection of aflatoxin B using quantum dots-based immunoassay in a recyclable gravity-driven microfluidic chip.

Biosens Bioelectron 2021 Jun 2;190:113394. Epub 2021 Jun 2.

Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China; School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China. Electronic address:

To achieve rapid and sensitive detection of aflatoxin B (AFB), we developed a polydimethylsiloxane gravity-driven cyclic microfluidic chip using the two-signal mode strategy. The structural design of the chip, together with the two-wavelength quantum dot ratio fluorescence, effectively eliminates the influence of environmental factors, improves the signal stability, and ensures that the final detection result positively correlates with the target concentration. Moreover, the theoretical analysis performed for the established physical model of the three-dimensional reaction interface inside the chip confirmed the improved reaction rate of immune adsorption in the microfluidic strategy. Read More

View Article and Full-Text PDF

Abiotic-biotic hybrid for CO biomethanation: From electrochemical to photochemical process.

Sci Total Environ 2021 Jun 5;791:148288. Epub 2021 Jun 5.

Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.

Converting CO into sustainable fuels (e.g., CH) has great significance to solve carbon emission and energy crisis. Read More

View Article and Full-Text PDF

Hierarchical ZIF-decorated nanoflower-covered 3-dimensional foam for enhanced catalytic reduction of nitrogen-containing contaminants.

J Colloid Interface Sci 2021 May 20;602:95-104. Epub 2021 May 20.

Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan. Electronic address:

Metal Organic Frameworks (MOFs) represent a promising class of metallic catalysts for reduction of nitrogen-containing contaminants (NCCs), such as 4-nitrophenol (4-NP). Nevertheless, most researches involving MOFs for 4-NP reduction employ noble metals in the form of fine powders, making these powdered noble metal-based MOFs impractical and inconvenient for realistic applications. Thus, it would be critical to develop non-noble-metal MOFs which can be incorporated into macroscale and porous supports for convenient applications. Read More

View Article and Full-Text PDF

Preparation of novel and highly active magnetic ternary structures (metal-organic framework/cobalt ferrite/graphene oxide) for effective visible-light-driven photocatalytic and photo-Fenton-like degradation of organic contaminants.

J Colloid Interface Sci 2021 Jun 3;602:73-94. Epub 2021 Jun 3.

Department of Environmental Research, Institute for Color Science and Technology, Tehran, Iran. Electronic address:

Herein, MIL-101(Fe), CoFeO, novel binary (MIL-101(Fe)/CoFeO, MIL-101(Fe)/GO and CoFeO/GO), and ternary (MIL-101(Fe)/CoFeO/(3%)GO and MIL-101(Fe)/CoFeO/(7%)GO) magnetic composites based upon the MIL-101(Fe) were synthesized. The XRD, FESEM, TEM, EDX, BET-BJH, FTIR, VSM, DRS, PL, EIS and other electrochemical analyses were applied to characterize samples. The MIL/CoFeO/(3%)GO demonstrated the best performance compared to other samples for visible light photocatalytic and photo-Fenton-like degradation of Direct Red 23 (DtR-23), Reactive Red 198 (ReR-198) dyes as well as Tetracycline Hydrochloride (TC-H) antibiotic. Read More

View Article and Full-Text PDF

Regeneration of porous FeO nanosheets from deep eutectic solvent for high-performance electrocatalytic nitrogen reduction.

J Colloid Interface Sci 2021 Jun 3;602:64-72. Epub 2021 Jun 3.

Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China.

The production of ammonia through electrocatalytic nitrogen reduction reaction (NRR) is environmentally friendly and energy-saving, but it still suffers from the low NH yield rate and poor selectivity. Herein, enlightened by the unique solubility of FeO in deep eutectic solvent (DES), we, for the first time, reported a DES-based regeneration strategy to fabricate porous FeO nanosheets utilizing commercial FeO powder as raw materials. The as-regenerated porous FeO nanosheets exhibited satisfactory electrocatalytic performance toward NRR, affording a NH yield rate of 12. Read More

View Article and Full-Text PDF

In-situ reconstruction of non-noble multi-metal core-shell oxyfluorides for water oxidation.

J Colloid Interface Sci 2021 May 31;602:55-63. Epub 2021 May 31.

School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China. Electronic address:

The electrochemical anodic behavior of transition metal compounds plays an undeniably non-negligible role across many electrooxidation reactions. In this work, a chronopotentiometric technique was employed to activate the multicomponent non-noble metal oxyfluorides in-situ for oxygen evolution reaction (OER). It is interesting to unravel that the increasing applied current density helps to reconstruct the catalyst into nanoporous core-shell structure and introduce metal oxyhydroxide on the surface, which guarantees more channels for efficient ion/mass transportation and thus contributes to exposing more active sites for catalytic reaction. Read More

View Article and Full-Text PDF

Synthesis of a 2D copper(II)-carboxylate framework having ultrafast adsorption of organic dyes.

J Colloid Interface Sci 2021 May 31;602:43-54. Epub 2021 May 31.

Department of Chemistry, GC University Lahore, 54000, Pakistan. Electronic address:

Two-dimensional (2D) coordination polymers are very interesting materials for their attractive applications. A novel 2D metal-organic framework (MOF) was derived from copper(II) and amino benzoic acid under both room temperature and solvothermal reaction conditions using different solvents. From both of the synthesis methods, an identical MOF was crystalized with monoclinic crystal system having P2/c space group. Read More

View Article and Full-Text PDF

FeO nanorods/CuO nanoparticles p-n heterojunction photoanode: Effective charge separation and enhanced photoelectrochemical properties.

J Colloid Interface Sci 2021 May 26;602:32-42. Epub 2021 May 26.

School of Physics, Liaoning University, Shenyang 110036, PR China; Liaoning Key Laboratory of Semiconductor Light Emitting and Photocatalytic Materials, Liaoning University, Shenyang 110036, PR China. Electronic address:

FeO/CuO p-n heterojunction photoelectrode films were fabricated by growing CuO nanoparticles on FeO nanorods via an impregnation method. The content of CuO in FeO/CuO films was changed to study the role of CuO on the p-n heterojunction. The obtained FeO/CuO photoelectrodes exhibited high intensity of visible-light absorption and excellence photoelectrochemical (PEC) performance. Read More

View Article and Full-Text PDF

Rational construction of Ni(OH) nanoparticles on covalent triazine-based framework for artificial CO reduction.

J Colloid Interface Sci 2021 May 25;602:23-31. Epub 2021 May 25.

State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, 2 Xue Yuan Road, New Campus, Minhou, Fujian 350108, PR China.

Artificial photoreduction of CO to chemical fuel is an intriguing and reliable strategy to tackle the issues of energy crisis and climate change simultaneously. In the present study, we rationally constructed a Ni(OH)-modified covalent triazine-based framework (CTF-1) composites to serve as cocatalyst ensemble for superior photoreduction of CO. In particular, the optimal Ni(OH)-CTF-1 composites (loading ratio at 0. Read More

View Article and Full-Text PDF

Mn as the "spearhead" preventing the trap of Zn in layered Mn inserted hydrated vanadium pentoxide enables high rate capacity.

J Colloid Interface Sci 2021 May 30;602:14-22. Epub 2021 May 30.

State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China. Electronic address:

Vanadium oxides attract much attention and are concerned as one of the most promising cathodes for aqueous zinc-ion batteries (AZIBs) owing to the layered structures. However, their intensive development is limited by the fragile structures and laggard ion-transferring. Herein, Mn inserted hydrated vanadium pentoxide nanobelts/reduced graphene oxide (MnVO·nHO/rGO, abbreviated as MnVOH/rGO) was prepared by a simple one-pot hydrothermal process, delivering excellent electrochemical properties for AZIBs. Read More

View Article and Full-Text PDF

Waterborne electrospinning of fluorine-free stretchable nanofiber membranes with waterproof and breathable capabilities for protective textiles.

J Colloid Interface Sci 2021 May 30;602:105-114. Epub 2021 May 30.

Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China. Electronic address:

Hypothesis: Smart membranes with robust liquid water resistance and water vapor transmission capabilities have attracted growing attentions in personal protective equipment and environmental protection. However, current fluorine-free waterproof and breathable nanofibrous membranes are usually prepared through toxic solvent-based electrospinning, which raises great concerns about their environmental impacts.

Experiments: We develop environmentally friendly fluorine-free polyurethane nanofibrous membranes with robust waterproof and breathable performances via waterborne electrospinning without post-coating treatment. Read More

View Article and Full-Text PDF

Bio-CQDs surface modification BiOCl for the BPA elimination and evaluation in visible light: The contribution of C-localized level.

J Colloid Interface Sci 2021 Jun 2;602:1-13. Epub 2021 Jun 2.

State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China.

Carbon quantum dots (CQDs) doping semiconductors can boost solar-to-hydrogen conversion and the photodegradation in VIS-NIR light, therefore attract great attention, but the perspective of CQDs role is seldom explored. Here, a biomass-CQDs was assembled with BiOCl (CQDs/BiOCl), then served as the visible-photodegradation model for a mechanistic investigation. Furthermore, CQDs/BiOCl removed 90% bisphenol A (BPA) within 2 h under visible light. Read More

View Article and Full-Text PDF

Temporal responses of hydrochemical variables and dissolved Fe(II) to flooding at a lake riparian wetland under different vegetation revealing by high resolution DGT.

J Environ Manage 2021 Jun 9;294:112930. Epub 2021 Jun 9.

Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China.

The interplay between hydrological and biogeochemical processes in riparian wetland was recognized to lead directly to the temporal variations of surface water quality. However, the effects of flooding and vegetation on the release and entrapment of heavy metals and nutrients in riparian wetland remain poorly understood. The study aimed at investigating the influences of flooding and vegetation on the hydrochemical and Fe-redox change in the soil porewater and shallow groundwater, in Poyang lake riparian wetland through hydrochemical monitoring and diffusive gradient technology (DGT). Read More

View Article and Full-Text PDF

Is a cloud-based platform useful for diabetes management in Colombia? The Tidepool experience.

Comput Methods Programs Biomed 2021 May 27;208:106205. Epub 2021 May 27.

Hospital Universitario San Ignacio, Carrera 7 No 40 - 62, Bogotá, Colombia.

Background: There are several medical devices used in Colombia for diabetes management, most of which have an associated telemedicine platform to access the data. In this work, we present the results of a pilot study evaluating the use of the Tidepool telemedicine platform for providing remote diabetes health services in Colombia across multiple devices.

Method: Individuals with Type 1 and Type 2 diabetes using multiple diabetes devices were recruited to evaluate the user experience with Tidepool over three months. Read More

View Article and Full-Text PDF

Memory effects in polymer brushes showing co-nonsolvency effects.

Adv Colloid Interface Sci 2021 May 17;294:102442. Epub 2021 May 17.

Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, Dresden 01069, Germany; Max-Planck-Institut für Polymerforschung, Ackermannweg 10, Mainz 55128, Germany. Electronic address:

Densely packed polymer chains grafted to a substrate, especially polymer brushes, have been studied intensively. Of special interest are systems that react to changes in external conditions or"remember" previous conditions. With this focus, we explore the properties of PNiPAAm brushes and relate published work to own results. Read More

View Article and Full-Text PDF

Pregnancy and Viral infections: Mechanisms of fetal damage, diagnosis and prevention of neonatal adverse outcomes from cytomegalovirus to SARS-CoV-2 and Zika virus.

Biochim Biophys Acta Mol Basis Dis 2021 Jun 9:166198. Epub 2021 Jun 9.

Fetal and Perinatal Medicine and Surgery Unit, Medical and Surgical Department of Fetus, Newborn and Infant - "Bambino Gesù" Children's Hospital IRCCS, Rome, Italy.

Some maternal infections, contracted before or during pregnancy, can be transmitted to the fetus, during gestation (congenital infection), during labor and childbirth (perinatal infection) and through breastfeeding (postnatal infection). The agents responsible for these infections can be viruses, bacteria, protozoa, fungi. Among the viruses most frequently responsible for congenital infections are Cytomegalovirus (CMV), Herpes simplex 1-2, Herpes virus 6, Varicella zoster. Read More

View Article and Full-Text PDF

High-resolution in vivo imaging of rhesus cerebral cortex with ultrafast portable photoacoustic microscopy.

Neuroimage 2021 Jun 9:118260. Epub 2021 Jun 9.

Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China. Electronic address:

Revealing the structural and functional change of microvasculature is essential to match vascular response with neuronal activities in the investigation of neurovascular coupling. The increasing use of rhesus models in fundamental and clinical studies of neurovascular coupling presents an emerging need for a new imaging modality. Here we report a structural and functional cerebral vascular study of rhesus monkeys using an ultrafast, portable, and high resolution photoacoustic microscopic system with a long working distance and a special scanning mechanism to eliminate the relative displacement between the imaging interface and samples. Read More

View Article and Full-Text PDF

Orofacial musculoskeletal pain: an evidence-based bio-psycho-social matrix model.

Neurosci Biobehav Rev 2021 Jun 9. Epub 2021 Jun 9.

Laboratory of Neuroimmune Interface of Pain Research, Faculdade São Leopoldo Mandic, Instituto e Centro de Pesquisas São Leopoldo Mandic, Campinas, SP, Brazil.

Pain is a multidimensional experience comprising sensory-discriminative, affective-motivational, and cognitive-evaluative dimensions. Clinical and research findings have demonstrated a complex interplay between social burdens, individual coping strategies, mood states, psychological disorders, sleep disturbances, masticatory muscle tone, and orofacial musculoskeletal pain. Accordingly, current classification systems for orofacial pain require psychosocial assessments to be an integral part of the multidimensional diagnostic process. Read More

View Article and Full-Text PDF

Intrinsically Disordered Osteopontin Fragment Orders During Interfacial Calcium Oxalate Mineralization.

Angew Chem Int Ed Engl 2021 Jun 12. Epub 2021 Jun 12.

Max Planck Institute for Polymer Research: Max-Planck-Institut fur Polymerforschung, molecular spectroscopy, GERMANY.

Calcium oxalate (CaC 2 O 4 ) is the major component of kidney stone, a prevalent chronic human disease worldwide. The acidic osteopontin (OPN) protein in human urine can effectively inhibit the growth of CaC 2 O 4 crystals, thereby acting as a potent stone preventer. Previous studies in bulk solution all attest to the importance of binding and recognition of OPN at the CaC 2 O 4 mineral surface, yet molecular level insights into the active interface during CaC 2 O 4 mineralization are still lacking. Read More

View Article and Full-Text PDF

Crystal structure of the cofactor-free form of thioredoxin reductase from Acinetobacter baumannii.

FEBS Lett 2021 Jun 12. Epub 2021 Jun 12.

College of Pharmacy, Chung-Ang University, Seoul, 06974, Republic of Korea.

Thioredoxin reductase (TrxR) is a central component in the thioredoxin system involved in catalyzing the reduction of thioredoxin, which is critical for organism survival. Because this system is essential, it is a promising target for novel antimicrobial agents. Herein, we solved the 1. Read More

View Article and Full-Text PDF

Protein Supercomplex Recording in Living Cells Via Position-Specific Fluorescence Lifetime Sensors.

Methods Mol Biol 2021 ;2275:301-314

Department of Biology, Institute of Molecular Cell Biology, University of Münster, Münster, Germany.

Our group has previously established a strategy utilizing fluorescence lifetime probes to image membrane protein supercomplex (SC) formation in situ. We showed that a probe at the interface between individual mitochondrial respiratory complexes exhibits a decreased fluorescence lifetime when a supercomplex is formed. This is caused by electrostatic interactions with the adjacent proteins. Read More

View Article and Full-Text PDF
January 2021

Perylene diimide/MXene-modified graphitic pencil electrode-based electrochemical sensor for dopamine detection.

Mikrochim Acta 2021 Jun 12;188(7):230. Epub 2021 Jun 12.

Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore, 54000, Pakistan.

The synthesis of novel architecture comprising perylene diimide (PDI)-MXene (TiCT)-integrated graphitic pencil electrode for electrochemical detection of dopamine (DA) is reported. The good electron passage between PDI-MXene resulted in an unprecedented nano-adduct bearing enhanced electrocatalytic activity with low-energy electronic transitions. The anionic groups of PDI corroborated enhanced active surface area for selective binding and robust oxidation of DA, thereby decreasing the applied potential. Read More

View Article and Full-Text PDF

NiCoS Nanocrystals on Nitrogen-Doped Carbon Nanotubes as High-Performance Anode for Lithium-Ion Batteries.

Nanoscale Res Lett 2021 Jun 12;16(1):105. Epub 2021 Jun 12.

Department of Chemical and Materials Engineering, National Laboratory Astana, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan.

In recent years, the development of lithium-ion batteries (LIBs) with high energy density has become one of the important research directions to fulfill the needs of electric vehicles and smart grid technologies. Nowadays, traditional LIBs have reached their limits in terms of capacity, cycle life, and stability, necessitating their further improvement and development of alternative materials with remarkably enhanced properties. A nitrogen-containing carbon nanotube (N-CNT) host for bimetallic sulfide (NiCoS) is proposed in this study as an anode with attractive electrochemical performance for LIBs. Read More

View Article and Full-Text PDF

Managing Defects Density and Interfacial Strain via Underlayer Engineering for Inverted CsPbI Br Perovskite Solar Cells with All-Layer Dopant-Free.

Small 2021 Jun 12:e2101902. Epub 2021 Jun 12.

Soochow Institute for Energy and Materials Innovation (SIEMIS), School of Energy, Soochow University, Suzhou, 215006, China.

Inorganic perovskite CsPbI Br has advantages of excellent thermal stability and reasonable bandgap, which make it suitable for top layer of tandem solar cells. Nevertheless, solution-processed all-inorganic perovskites generally suffer from high-density defects as well as significant tensile strain near underlayer/perovskite interface, both leading to compromised device efficiency and stability. In this work, the defect density as well as interfacial tensile strain in inverted CsPbI Br perovskite solar cells (PeSCs) is remarkably reduced by using a bilayer underlayer composed of dopant-free 2,2',7,7'-tetrakis(N,N-dip-methoxyphenylamine)-9,9'-spirobifluorene (Spiro-OMeTAD) and copper phthalocyanine 3,4',4″,4'″-tetrasulfonated acid tetrasodium salt (TS-CuPc) nanoparticles. Read More

View Article and Full-Text PDF

Species-Specific Urothelial Toxicity with an anti-HIV Non-Catalytic Site Integrase Inhibitor (NCINI) is Related to Unusual pH-Dependent Physicochemical Changes.

Toxicol Sci 2021 Jun 12. Epub 2021 Jun 12.

Nonclinical Safety & Pathobiology, Gilead Sciences, Inc, Foster City, USA.

GS-9695 and GS-9822 are next generation Non-Catalytic Site Integrase Inhibitors (NCINIs) with significantly improved potency against HIV compared with previous drugs such as BI-224436. Development stopped due to vacuolation of the bladder urothelium seen in cynomolgus monkey but not in rat; this lesion was absent in equivalent preclinical studies with BI-224436 (tested in dog and rat). Lesions were unlikely to be attributable to target since NCINIs specifically target viral integrase protein and no mammalian homologue is known. Read More

View Article and Full-Text PDF

Confinement of Zinc Salt in Ultrathin Heterogeneous Film to Stabilize Zinc Metal Anode.

Small 2021 Jun 12:e2100722. Epub 2021 Jun 12.

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.

Aqueous zinc metal batteries (AZMBs) have drawn great attention due to the high theoretical capacity, low redox potential, and abundance reserves. However, the practical application of rechargeable AZMBs are hindered by the poor reversibility of Zn metal anode, owing to easy dendrite growth and serious side reactions. Herein, the preparation of heterogeneous interfacial film with highly dispersed and confined zinc salt in a 2D channel by coassembling polyamide 6, zinc trifluoromethanesulfonate, and layered double hydroxides, which significantly suppresses the dendrite formation, H evolution reaction as well as O corrosion is reported. Read More

View Article and Full-Text PDF

Nanographene-Osmapentalyne Complexes as a Cathode Interlayer in Organic Solar Cells Enhance Efficiency over 18.

Adv Mater 2021 Jun 12:e2101279. Epub 2021 Jun 12.

Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.

Interface engineering is a critical method by which to efficiently enhance the photovoltaic performance of nonfullerene solar cells (NFSC). Herein, a series of metal-nanographene-containing large transition metal involving d -p conjugated systems by way of the addition reactions of osmapentalynes and p-diethynyl-hexabenzocoronenes is reported. Conjugated extensions are engineered to optimize the π-conjugation of these metal-nanographene molecules, which serve as alcohol-soluble cathode interlayer (CIL) materials. Read More

View Article and Full-Text PDF

Interface, interaction, and intelligence in generalized brain-computer interfaces.

Trends Cogn Sci 2021 Apr 29. Epub 2021 Apr 29.

Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China. Electronic address:

A brain-computer interface (BCI) establishes a direct communication channel between a brain and an external device. With recent advances in neurotechnology and artificial intelligence (AI), the brain signals in BCI communication have been advanced from sensation and perception to higher-level cognition activities. While the field of BCI has grown rapidly in the past decades, the core technologies and innovative ideas behind seemingly unrelated BCI systems have never been summarized from an evolutionary point of view. Read More

View Article and Full-Text PDF