7,526 results match your criteria exhibit superior


Efficient capture of airborne PM by nanotubular conjugated microporous polymers based filters under harsh conditions.

J Hazard Mater 2021 Aug 31;423(Pt A):127047. Epub 2021 Aug 31.

College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, PR China. Electronic address:

The exploitation of high-performance filters which can capture and remove airborne particulate matter (PM) in harsh conditions is greatly important to limit the serious effect of PM on human health. Herein, we demonstrate a simple approach for the creation of robust and hierarchically porous filters based on conjugated microporous polymers (CMPs) nanotubes for efficient PM capture. Taking advantage of their inherently superhydrophobic wettability, the CMPs-based filters possess high filtration efficiency of higher than 99. Read More

View Article and Full-Text PDF

Improvement of Oxygen Reduction Performance in Alkaline Media by Tuning Phase Structure of Pd-Bi Nanocatalysts.

J Am Chem Soc 2021 Sep 14. Epub 2021 Sep 14.

Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States.

Tuning the crystal phase of bimetallic nanocrystals offers an alternative avenue to improving their electrocatalytic performance. Herein, we present a facile and one-pot synthesis approach that is used to enhance the catalytic activity and stability toward oxygen reduction reaction (ORR) in alkaline media via control of the crystal structure of Pd-Bi nanocrystals. By merely altering the types of Pd precursors under the same conditions, the structured PdBi and conventional face-centered cubic () structured PdBi nanocrystals with comparable size and morphology can be precisely synthesized, respectively. Read More

View Article and Full-Text PDF
September 2021

Biocompatible Ruthenium Single-Atom Catalyst for Cascade Enzyme-Mimicking Therapy.

ACS Appl Mater Interfaces 2021 Sep 14. Epub 2021 Sep 14.

Department of Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei 230026, China.

Rationally constructing single-atom enzymes (SAEs) with superior activity, robust stability, and good biocompatibility is crucial for tumor therapy but still remains a substantial challenge. In this work, we adopt biocompatible carbon dots as the carrier material to load Ru single atoms, achieving Ru SAEs with superior multiple enzyme-like activity and stability. Ru SAEs behave as oxidase, peroxidase, and glutathione oxidase mimics to synchronously catalyze the generation of reactive oxygen species (ROS) and the depletion of glutathione, thus amplifying the ROS damage and finally causing the death of cancer cells. Read More

View Article and Full-Text PDF
September 2021

Ru nanoparticles on a Cs-loaded MgO superbase as highly efficient catalysts for ammonia synthesis.

Dalton Trans 2021 Sep 14;50(35):12074-12078. Epub 2021 Sep 14.

Dalian National Laboratory for Clean Energy, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.

Cs-Loaded MgO, a typical type of solid superbase, was used as a support to disperse and anchor Ru nanoparticles. Much enhanced Ru dispersion together with electron donation of Cs-loaded MgO enables Ru nanoparticles on Cs-loaded MgO to exhibit excellent activity and intrinsic activity for ammonia synthesis, superior to the conventional Ru/MgO catalyst and the state-of-the-art Cs modified Ru/MgO catalyst under identical reaction conditions. Read More

View Article and Full-Text PDF
September 2021

CoNi Nanoparticles Supported on N-Doped Bifunctional Hollow Carbon Composites as High-Performance ORR/OER Catalysts for Rechargeable Zn-Air Batteries.

ACS Appl Mater Interfaces 2021 Sep 14. Epub 2021 Sep 14.

School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China.

Searching for high-quality air electrode catalysts is the long-term goal for the practical application of Zn-air batteries. Here, a series of coexistent composite materials (CoNi/NHCS-TUC-) of cobalt-nickel supported on nitrogen-doped hollow spherical carbon and tubular carbon are obtained using a simple pyrolysis strategy. Co and Ni in the composites are mainly present in the form of alloy nanoparticles, M-N and M-C (M = Co or Ni) species, with high oxygen reduction reaction (ORR)/oxygen evolution reaction (OER) electroactivity. Read More

View Article and Full-Text PDF
September 2021

A high-throughput screening of metal-organic framework based membranes for biogas upgrading.

Faraday Discuss 2021 Sep 13. Epub 2021 Sep 13.

School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, UK.

Applications of biomethane as a source of renewable energy and transport fuel rely heavily on successful implementation of purification methods capable of removing undesirable impurities from biogas and increasing its calorific content. Metal-organic frameworks (MOFs) are competitive candidates for biogas upgrading due to a versatile range of attractive physical and chemical properties which can be utilised in membrane materials. In this work, we present a high-throughput computational screening methodology for efficient identification of MOF structures with promising gas separation performance. Read More

View Article and Full-Text PDF
September 2021

Tuning Dynamically Formed Active Phases and Catalytic Mechanisms of Electrochemically Activated Layered Double Hydroxide for Oxygen Evolution Reaction.

ACS Nano 2021 Sep 13. Epub 2021 Sep 13.

NanoElectrochemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan.

The active phase and catalytic mechanisms of Ni-based layered double hydroxide (LDH) materials for oxygen evolution reaction (OER) have no common consensus and remain controversial. Moreover, engineering the site activity and the number of active sites of LDHs is an efficient approach to advance the OER activity, as the thickness and stacking structure of the LDHs layer limit the catalytic activity. This work presents an interesting approach of tuning the site activity and number of active sites of NiMn-LDHs, which exhibit the superior OER performance (onset overpotential of 0. Read More

View Article and Full-Text PDF
September 2021

A Low-Prevalence Single-Nucleotide Polymorphism in the Sensor Kinase PhoR in Suppresses Its Autophosphatase Activity and Reduces Pathogenic Fitness: Implications in Evolutionary Selection.

Front Microbiol 2021 25;12:724482. Epub 2021 Aug 25.

Department of Molecular Reproduction Development and Genetics, Indian Institute of Science, Bengaluru, India.

The genome sequencing of , the causative organism of tuberculosis, has significantly improved our understanding of the mechanisms that drive the establishment of infection and disease progression. Several clinical strains of exhibit single-nucleotide polymorphisms (SNPs), the implications of which are only beginning to be understood. Here, we examined the impact of a specific polymorphism in PhoR, the sensor kinase of the PhoPR two-component system. Read More

View Article and Full-Text PDF

Novel Ultrabright and Air-Stable Photocathodes Discovered from Machine Learning and Density Functional Theory Driven Screening.

Adv Mater 2021 Sep 12:e2104081. Epub 2021 Sep 12.

Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.

The high brightness, low emittance electron beams achieved in modern X-ray free-electron lasers (XFELs) have enabled powerful X-ray imaging tools, allowing molecular systems to be imaged at picosecond time scales and sub-nanometer length scales. One of the most promising directions for increasing the brightness of XFELs is through the development of novel photocathode materials. Whereas past efforts aimed at discovering photocathode materials have typically employed trial-and-error-based iterative approaches, this work represents the first data-driven screening for high brightness photocathode materials. Read More

View Article and Full-Text PDF
September 2021

Atomically Isolated Rh Sites within Highly Branched Rh Sb Nanostructures Enhance Bifunctional Hydrogen Electrocatalysis.

Adv Mater 2021 Sep 12:e2105049. Epub 2021 Sep 12.

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.

Breaking the bottleneck of hydrogen oxidation/evolution reactions (HOR/HER) in alkaline media is of tremendous importance for the development of anion exchange membrane fuel cells/water electrolyzers. Atomically dispersed active sites are known to exhibit excellent activity and selectivity toward diverse catalytic reactions. Here, a class of unique Rh Sb nanocrystals with multiple nanobranches (denoted as Rh Sb NBs) and atomically dispersed Rh sites are reported as promising electrocatalysts for alkaline HOR/HER. Read More

View Article and Full-Text PDF
September 2021

Efficient detection of hazardous HS gas using multifaceted CoO/ZnO hollow nanostructures.

Chemosphere 2021 Sep 8;287(Pt 2):132178. Epub 2021 Sep 8.

School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China. Electronic address:

The rapid increases in environmental hazardous gases have laid dangerous effects on human health. The detection of such pollutants gases is mandatory using various optimal techniques. In this paper, porous multifaceted CoO/ZnO nanostructures are synthesized by pyrolyzing sacrificial template of core-shell double zeolitic imidazolate frameworks (ZIFs) for gas sensing applications. Read More

View Article and Full-Text PDF
September 2021

A Flexible Multi-Channel Hollow CNT/Carbon Nanofiber Composites with S/N Co-Doping for Sodium/Potassium Ion Energy Storage.

ACS Appl Mater Interfaces 2021 Sep 10. Epub 2021 Sep 10.

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

Carbon fibrous materials are the promising candidate for the anode of flexible sodium-ion batteries and potassium-ion batteries due to the structural advantages. However, the progress of mechanically robust anode materials with high electrochemical properties is still unsatisfactory for the flexible electrodes. Herein, the comprehensive design of the morphology with unique multi-channel hollow 1D/1D carbon nanotube/carbon nanofiber network and the lattice structure of carbon with S/N co-doping has been proposed. Read More

View Article and Full-Text PDF
September 2021

Nitrogen-rich metal-free salts: a new look at the 5-(trinitromethyl)tetrazolate anion as an energetic moiety.

Dalton Trans 2021 Sep 10. Epub 2021 Sep 10.

N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Ave., 119991 Moscow, Russia.

A series of energetic nitrogen-rich salts comprised of a 5-(trinitromethyl)tetrazolate anion and high-nitrogen cations was synthesized by simple and efficient chemical routes from readily available commercial reagents. These energetic materials were fully characterized by IR and multinuclear NMR (H, C, N) spectroscopy, elemental analysis, and differential scanning calorimetry (DSC). Additionally, the structure of an energetic salt containing the 3,6,7-triamino-7-[1,2,4]triazolo[4,3-][1,2,4]triazolium cation was confirmed by single-crystal X-ray diffraction. Read More

View Article and Full-Text PDF
September 2021

Characterization of a Potent New-Generation Antimicrobial Peptide of .

Front Microbiol 2021 24;12:710741. Epub 2021 Aug 24.

Department of Protein Chemistry and Technology, Faculty of AcSIR, CSIR-CFTRI, Mysore, India.

An antimicrobial peptide [ antimicrobial peptide (BAMP)] produced by was isolated from the Indian traditional fermented food and characterized. The antimicrobial peptide BAMP showed many unique features such as thermostability (4.0-125°C), pH tolerance (pH 2. Read More

View Article and Full-Text PDF

Obtention and Characterization of Ferrous Chloride FeCl·4HO from Water Pickling Liquors.

Materials (Basel) 2021 Aug 26;14(17). Epub 2021 Aug 26.

Centro Nacional de Investigaciones Metalúrgicas (CENIM), Consejo Superior de Investigaciones Científicas (CSIC), Avda. Gregorio del Amo, 8, 28040 Madrid, Spain.

As a hazardous waste, water pickling liquors must be properly treated. An alternative consists of promoting the formation of ferrous salts from this residue due to their higher ferrous content. Since FeCl·4HO is widely used in several applications, obtaining pure crystals of this material appears to be an interesting prospect. Read More

View Article and Full-Text PDF

Recent Advances on Pt-Free Electro-Catalysts for Dye-Sensitized Solar Cells.

Molecules 2021 Aug 26;26(17). Epub 2021 Aug 26.

Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan.

Since Prof. Grätzel and co-workers achieved breakthrough progress on dye-sensitized solar cells (DSSCs) in 1991, DSSCs have been extensively investigated and wildly developed as a potential renewable power source in the last two decades due to their low cost, low energy-intensive processing, and high roll-to-roll compatibility. During this period, the highest efficiency recorded for DSSC under ideal solar light (AM 1. Read More

View Article and Full-Text PDF

Efficient and sustainable phosphate removal from water by small-sized Al(OH) nanocrystals confined in discarded Artemia Cyst-shell: Ultrahigh sorption capacity and rapid sequestration.

Sci Total Environ 2021 Sep 1;803:150087. Epub 2021 Sep 1.

State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, China; Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water And Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China. Electronic address:

We reported a new strategy for efficient phosphate removal from wastewaters, it relies on the discarded Artemia Cyst-shell in-situ growth of Al(OH) nanocluster, the charged amino-acids components of skeleton make available for the small size of Al(OH) formation (< 10 nm) with high activity, and the three-dimensional porous structure of discarded matrix provides fast kinetics and efficient Al(OH) nanoparticles utilization. These hybrid adsorbents exhibit ultrahigh capacity (850.5 mg/g) and fast kinetics (~2 min) by recent ten-years (2011-2020) survey, the superior selectivity against various foreign ions, with a distribution coefficient (K) as high as 4820 mL/g, the porous structure and fast kinetics also accelerate the phosphate accessibility, yielding a satisfactory capacity of ~3000 L/kg sorbent (Artemia CS-Al) for the application, even varying at high feeding-speeds. Read More

View Article and Full-Text PDF
September 2021

Plasmon-Mediated 2D/2D Phase Junction for Improved Photocatalytic Hydrogen Generation Activity.

ACS Appl Mater Interfaces 2021 Sep 9. Epub 2021 Sep 9.

Department of Physics, Wuhan University, Wuhan 430072, P. R. China.

A phase junction fabricated by two crystalline phases of the same semiconductor is a promising photocatalyst with efficient charge transfer and separation. However, the weak light absorption and uncontrolled phase junction interface limit the generation and separation of photogenerated carriers. Herein, a two-dimensional (2D)/2D phase junction was prepared by growing orthorhombic WO ultrathin nanosheets on hexagonal WO nanosheets through a one-step hydrothermal method. Read More

View Article and Full-Text PDF
September 2021

Conductivity and Stability Properties of Anion Exchange Membranes: Cations Effect and Backbones Effect.

ChemSusChem 2021 Sep 9. Epub 2021 Sep 9.

Wuhan University, chemistry, CHINA.

The rise of heterocycles cations, a new class of stable cations, has fuelled faster growth research interest in heterocycles cations attached anion exchange membranes (AEMs). However, once cations are grafted onto backbones, the effect of backbones on properties of AEMs must also be taken into account. In order to comprehensively study the influence of cations effect and backbones effect on AEMs performance, a series of AEMs are prepared by grafting spacer cations, heterocycles cations and aromatic cations onto polar backbone (BPPO) or non-polar backbone (PVB), respectively. Read More

View Article and Full-Text PDF
September 2021

A Solvent Polarity Induced Interface Self-assembly Strategy towards Mesoporous Triazine-based Carbon Materials.

Angew Chem Int Ed Engl 2021 Sep 8. Epub 2021 Sep 8.

Jilin University, Department of Chemistry, 2699 Qianjin Street, 130012, Changchun, CHINA.

Triazine-based materials with porous structure have recently recieved numerous attentions as a fascinating new class because of their superior potential for various applications. However, it is still a formidable challenge to obtain triazine-based materials with precise adjustable meso-scaled pore sizes and contrallable pore structures by reported synthesis approaches. Here, we develop a solvent polarity induced interface self-assembly strategy to construct mesoporous triazine-based carbon materials. Read More

View Article and Full-Text PDF
September 2021

Oxygen Defect Hydrated Vanadium Dioxide/Graphene as a Superior Cathode for Aqueous Zn Batteries.

ACS Appl Mater Interfaces 2021 Sep 8. Epub 2021 Sep 8.

Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Guangdong Engineering Technology Research Center of Efficient Green Energy and Environment Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, P. R. China.

Zinc ion batteries have become a new type of energy storage device because of the low cost and high safety. Among the various cathode materials, vanadium-oxygen compounds stand out due to their high theoretical capacity and variable chemistry valence state. Here, we construct a 3D spongy hydrated vanadium dioxide composite (O-HVO/rG) with abundant oxygen vacancy defects and graphene modifications. Read More

View Article and Full-Text PDF
September 2021

Active and selective removal of Cs from contaminated water by self-propelled magnetic illite microspheres.

J Hazard Mater 2021 Aug 26;416:126226. Epub 2021 May 26.

Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong-gu, Daejeon, Republic of Korea.

We report the fabrication of clay-mineral-based Janus microspheres that exhibit remotely steerable self-propulsion in water, facilitating their selective and active removal of radiocesium from a contaminated solution. The spray-drying of slurries of intrinsically Cs-selective illite containing iron oxide nanoparticles led to magnetic illite microspheres with superior Cs adsorption capability and superparamagnetic behavior. The Janus micromotor adsorbent was prepared by depositing catalytic Pt onto the half-surface of magnetic illite microspheres. Read More

View Article and Full-Text PDF

Synergistic adsorption-photocatalytic degradation of different antibiotics in seawater by a porous g-CN/calcined-LDH and its application in synthetic mariculture wastewater.

J Hazard Mater 2021 Aug 23;416:126183. Epub 2021 May 23.

School of Environment, South China Normal University, University Town, Guangzhou 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou 510006, China.

In this work, a modified g-CN/MgZnAl-calcined layered double hydroxide composite (M-CN/cLDH) was successfully fabricated via a template method. The composite material is a hierarchical porous flower-like nanostructure self-assembled from stacked hybrid flakes. The 3D M-CN/cLDH architectures exhibit a synergistic effect of adsorption and photocatalysis for eliminating typical tetracycline antibiotics in seawater, i. Read More

View Article and Full-Text PDF

Comparison Study of Self-Cleaning, Anti-Icing, and Durable Corrosion Resistance of Superhydrophobic and Lubricant-Infused Ultraslippery Surfaces.

Langmuir 2021 Sep 7. Epub 2021 Sep 7.

Department of Chemistry, School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, U.K.

Endowing metallic surfaces with special wettability and unique interfacial contacts broadens their wide application fields. Herein, superhydrophobic and lubricant-infused ultraslippery surfaces were achieved through chemical etching, low surface energy molecule grafting, and lubricant infusion. Systematic comparison studies of the surface wettability, self-cleaning, anti-icing, anticorrosion behaviors, and mechanical durability were carried out to reveal the functional differences and mechanisms. Read More

View Article and Full-Text PDF
September 2021

Superior tunable photocatalytic properties for water splitting in two dimensional GeC/SiC van der Waals heterobilayers.

Sci Rep 2021 Sep 6;11(1):17739. Epub 2021 Sep 6.

School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, ON, K1N 6N5, Canada.

The photocatalytic characteristics of two-dimensional (2D) GeC-based van der Waals heterobilayers (vdW-HBL) are systematically investigated to determine the amount of hydrogen (H) fuel generated by water splitting. We propose several vdW-HBL structures consisting of 2D-GeC and 2D-SiC with exceptional and tunable optoelectronic properties. The structures exhibit a negative interlayer binding energy and non-negative phonon frequencies, showing that the structures are dynamically stable. Read More

View Article and Full-Text PDF
September 2021

Generation and characterization of cardiac valve endothelial-like cells from human pluripotent stem cells.

Commun Biol 2021 Sep 6;4(1):1039. Epub 2021 Sep 6.

Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.

The cardiac valvular endothelial cells (VECs) are an ideal cell source that could be used for making the valve organoids. However, few studies have been focused on the derivation of this important cell type. Here we describe a two-step chemically defined xeno-free method for generating VEC-like cells from human pluripotent stem cells (hPSCs). Read More

View Article and Full-Text PDF
September 2021

Recyclable, Self-Healing, and Flame-Retardant Solid-Solid Phase Change Materials Based on Thermally Reversible Cross-Links for Sustainable Thermal Energy Storage.

ACS Appl Mater Interfaces 2021 Sep 6;13(36):42991-43001. Epub 2021 Sep 6.

College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China.

Conventional polymeric phase change materials (PCMs) exhibit good shape stability, large energy storage density, and satisfactory chemical stability, but they cannot be recycled and self-healed due to their permanent cross-linking structure. Additionally, the high flammability of organic PCMs seriously restricts their applications for thermal energy storage (TES). Therefore, it is urgently required to explore PCM composites exhibiting superior recyclability, good self-healing capability, and excellent flame retardancy simultaneously. Read More

View Article and Full-Text PDF
September 2021

Imaging data indicate cerebral reorganisation in poliomyelitis survivors: Possible compensation for longstanding lower motor neuron pathology.

Data Brief 2021 Oct 21;38:107316. Epub 2021 Aug 21.

Computational Neuroimaging Group, Biomedical Sciences Institute, Trinity College Dublin, Ireland.

A standardised, single-centre cross-sectional imaging protocol was utilised to investigate cortical grey matter and cerebral white matter alterations in 36 poliomyelitis survivors in contrast to healthy individuals and patients with amyotrophic lateral sclerosis (ALS) as a 'disease-control' group. [1] T1-weighted imaging and 32-direction diffusion tensor imaging data were obtained on a 3 Tesla Philips Achieva MRI system, using an IR-SPGR sequence and SE-EPI sequence respectively. Raw region-of-interest data and percentage change with respect to reference estimated marginal mean values are presented for grey and white matter metrics in key anatomical regions. Read More

View Article and Full-Text PDF
October 2021

Effects of Different Glucose-Lowering Measures on Maternal and Infant Outcomes in Pregnant Women with Gestational Diabetes: A Network Meta-analysis.

Authors:
Hong Ouyang Na Wu

Diabetes Ther 2021 Sep 4. Epub 2021 Sep 4.

Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China.

Introduction: A network meta-analysis was conducted to compare and rank the effects of different glucose-lowering measures on maternal and infant outcomes in pregnant women with gestational diabetes mellitus (GDM).

Methods: We searched the PubMed, CNKI, Embase, Cochrane Library, Wanfang, and Weipu databases for relevant studies published between database establishment and June 2021. Study retrieval involved subject-heading and keyword searches. Read More

View Article and Full-Text PDF
September 2021

Hydrogen Bonding Stiffens Peptide Amphiphile Supramolecular Filaments by Aza-Glycine Residues.

Acta Biomater 2021 Sep 1. Epub 2021 Sep 1.

Simpson Querrey Institute, Northwestern University, 303 E. Superior St, Chicago, Illinois 60611, United States; Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States; Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States; Department of Medicine, Northwestern University, 676 N St Clair St Suite 1600, Chicago, IL 60611, United States; Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States. Electronic address:

Peptide amphiphiles (PAs) are a class of molecules comprised of short amino acid sequences conjugated to hydrophobic moieties that may exhibit self-assembly in water into supramolecular structures. We investigate here how mechanical properties of hydrogels formed by PA supramolecular nanofibers are affected by hydrogen bond densities within their internal structure by substituting glycine for aza-glycine (azaG) residues. We found that increasing the number of PA molecules that contain azaG up to 5 mol% in PA supramolecular nanofibers increases their persistence length fivefold and decreases their diffusion coefficients as measured by fluorescence recovery after photobleaching. Read More

View Article and Full-Text PDF
September 2021