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Towards Automated Monomer Synthesis: A Streamlined Approach for the Synthesis of Cyclic Carbonates

Eddy Tan、James L. Hedrick、Pedro L. Arrechea 等 8 位作者2020-08-04ChemRxiv

Accessing cyclic carbonate monomers on large scales is critical for development of any new carbonate-based material platform. This is particularly important in the context of using automated experimental systems for materials synthesis, which can often require large inputs of starting materials. However, the synthesis…

biodegradable polymer synthesis and propertiesSynthetic Organic Chemistry MethodsCarbon dioxide utilization in catalysis

Analytical Validation of an ATR-FTIR Based Method for Quantifying the Amount of Polysorbate 80 Adsorbed on the PLGA Nanoparticles

Nabodita Sinha、Abhayraj S. Joshi、Ashwani Kumar Thakur2020-08-04ChemRxiv

Nanomedicine is envisioned to have a tremendous impact on targeted drug delivery in future. Coating of nanoparticles with non-ionic surfactants has been often employed for enhancing targeting in drug delivery systems. Polysorbate 80 is one of the non-ionic surfactants used often as a coating agent for receptor-mediate…

Nanoparticle-Based Drug DeliveryAdvanced Drug Delivery SystemsCancer Research and Treatment

Structural Determination of an Orphan Natural Product Using Microcrystal Electron Diffraction and Genome Mining

Lee Joon Kim、Masao Ōhashi、Dan Tan 等 8 位作者2020-08-04ChemRxiv

More than 60% of pharmaceuticals are related to natural products (NPs), chemicals produced by living organisms. Hence, new methods that accelerate natural product discovery are poised to profoundly impact human health. Of the many challenges that remain in natural product discovery, none are as pervasive as structural…

Microbial Natural Products and BiosynthesisRNA and protein synthesis mechanismsEnzyme Structure and Function

Frontispiz: Achieving Superior Electrocatalytic Performance by Surface Copper Vacancy Defects during Electrochemical Etching Process

Niankun Guo、Hui Xue、Amurisana Bao 等 11 位作者2020-08-04Angewandte Chemie

Sauerstoffreduktionsreaktion In ihrem Forschungsartikel auf S. 13882 berichten Q. Wang et al. über leerstellenreiche Pt-Cu-Nanodrahtnetzwerke (VCu-PtCu), die eine überlegene elektrokatalytische Leistung in der Sauerstoffreduktionsreaktion zeigen.

Electrocatalysts for Energy ConversionFuel Cells and Related MaterialsNanoporous metals and alloys

Vacancy Engineered Polymeric Carbon Nitride Nanosheets for Enhanced Photoredox Catalytic Efficiency

Qiong Liu、Wengang Xu、Hui Cao 等 12 位作者2020-08-04ChemRxiv

Polymeric carbon nitrides (PCNs) have emerged as promising heterogeneous photocatalysts for organic transformations as they are metal-free, inexpensive, and possess suitable bandgaps, and excellent chemical- and photo-stability. However, current application of PCNs in organic synthesis is rather limited to several wel…

Advanced Photocatalysis TechniquesCovalent Organic Framework ApplicationsSulfur-Based Synthesis Techniques

Report on 2003.08227v1

Gal Shavit、Yuval Oreg2020-08-04OpenAlex

Recent transport experiments in spatially modulated quasi-1D structures created on top of LaAlO3/SrTiO3 interfaces have revealed some unconventional features, including extraordinary phenomena conspicuously absent without the modulation.In this work, we focus on two of these remarkable features and provide theoretical…

Topological Materials and PhenomenaElectronic and Structural Properties of OxidesChemical and Physical Properties of Materials

Discovery of a Two-Dimensional Type I Superionic Conductor

Alexander J. E. Rettie、Jingxuan Ding、Michael L. Johnson 等 10 位作者2020-08-04ChemRxiv

Type I superionic conductors (e.g., AgI, Ag2Se, etc.) are defined by an abrupt transition to the superionic state and have so far been found exclusively in 3D crystal structures. Here, we reveal a new 2D type I superionic conductor, α-KAg3Se2 by total scattering techniques and complementary simulations. Quasi-elastic…

Advanced Battery Materials and TechnologiesAdvanced Thermoelectric Materials and DevicesAdvanced Condensed Matter Physics

Aspredinichthys filamentosus: Frederico, R.G.

IUCN2020-08-04IUCN Red List of Threatened Species

Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.

Aquatic Ecosystems and Phytoplankton DynamicsDiatoms and Algae ResearchFish biology, ecology, and behavior

Elucidating the Structural Evolution of a Highy Porous Responsive Metal-Organic Framework (DUT-49(M)) upon Guests Desorption by Time-Resolved In-Situ Powder X-Ray Diffraction

Bikash Garai、Volodymyr Bon、Francesco Walenszus 等 6 位作者2020-08-04ChemRxiv

Variation in the metal centres of M-M paddle-wheel SBU results in the formation of isostructural DUT-49(M) frameworks. However, the porosity of the framework was found to be different for each of the structures. While a high and moderate porosity was obtained for DUT-49(Cu) and DUT-49(Ni), respectively, other members…

Metal-Organic Frameworks: Synthesis and ApplicationsCorrosion Behavior and InhibitionMagnetism in coordination complexes

Introduction

T. M. Delligatti2020-08-04OpenAlex

Costume design is about creating characters on the stage or in film. Characters are representations of real people. To use costumes effectively, a designer must understand the ways people wear clothes: for comfort, religion, expression, ceremony, protection, and many other reasons. A costume designer’s process begins…

Textile materials and evaluationsFashion and Cultural TextilesCrafts, Textile, and Design

Arthonia cupressina: Lendemer, J.

IUCN2020-08-04IUCN Red List of Threatened Species

Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.

Diatoms and Algae Research

Polymers

E. B. Ilgren2020-08-04OpenAlex

Agent Source Character Treatment

Polymer crystallization and propertiesAdvanced Polymer Synthesis and CharacterizationPolymer Science and PVC

Centerband‐Only Detection of Exchange NMR with Natural‐Abundance Correction Reveals an Expanded Unit Cell in Phenylalanine Crystals

Kai Xue、Rıza Dervişoğlu、H. Sowa 等 4 位作者2020-08-04ChemPhysChem

The Front Cover shows phenylalanine crystals and NMR data obtained at low temperature that reveals the expanded unit cell. More information can be found in the Communication by Loren B. Andreas and co-workers.

Advanced NMR Techniques and ApplicationsSolid-state spectroscopy and crystallographyMolecular spectroscopy and chirality

Berichtigung: Droplet Precise Self‐Splitting on Patterned Adhesive Surfaces for Simultaneous Multidetection

Huizeng Li、Wei Fang、Zhipeng Zhao 等 9 位作者2020-08-04Angewandte Chemie

In this Research Article on page 10537, right column, there is a typographical error in the expression for the Weber number. μ should be the surface tension (γ) of the liquid. The correct formula is We=ρV2D/γ, where ρ and γ are the liquid density and surface tension, V is the droplet impact speed, and D is the droplet…

Surface Modification and SuperhydrophobicityPlant Surface Properties and TreatmentsModular Robots and Swarm Intelligence

Calmodulin in starfish oocytes

Laurent M. Meijer、Robert W. Wallace2020-08-04OpenAlex

Calmodulin (Calcium-Dependent Regulator) has been demonstrated in many animal and plant tissues. It appears to be a universal calcium-binding protein that activates a wide variety of enzymes such as phosphodiesterase (PDE), adenylate cyclase, NAD-kinase, protein kinase.

Calcium Carbonate Crystallization and InhibitionCephalopods and Marine Biology

Discovery of a Two-Dimensional Type I Superionic Conductor

Alexander J. E. Rettie、Jingxuan Ding、Michael J. Johnson 等 10 位作者2020-08-04ChemRxiv

Type I superionic conductors (e.g., AgI, Ag2Se, etc.) are defined by an abrupt transition to the superionic state and have so far been found exclusively in 3D crystal structures. Here, we reveal a new 2D type I superionic conductor, α-KAg3Se2 by total scattering techniques and complementary simulations. Quasi-elastic…

Advanced Thermoelectric Materials and DevicesAdvanced Condensed Matter PhysicsSolid-state spectroscopy and crystallography

Racemization Hypothesis of COVID-19. Tip of the Iceberg

作者信息未提供2020-08-04Journal of Psychology and Neuroscience

The impact of viral infections on the central nervous system is widely known. Virus-related neuropsychiatric and neurobehavioral syndromes are caused by the distortion of cognitive, affective, behavioral, and perceptual domains. Although it is a commonly known phenomenon, the mechanism behind it is not well-understood…

Protein Structure and DynamicsEnzyme Structure and FunctionAmino Acid Enzymes and Metabolism

Neonotonia wightii: Richards, S.L.

IUCN2020-08-04IUCN Red List of Threatened Species

Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.

Diatoms and Algae Research

Carbon Dots as Heterogeneous Catalysts for the Sustainable Production of Biodiesel

Alexia Macina2020-08-04Spectrum Research Repository (Concordia University)

With rising global energy demands, fossil fuels are being consumed at their quickest rate yet. Overconsumption, unsustainable practices and environmental concerns have accelerated the search for alternative, renewable and environmentally friendly energy sources. One such promising source is biodiesel, which is formed…

Electrochemical sensors and biosensorsCarbon and Quantum Dots ApplicationsNanomaterials for catalytic reactions

Aqueous CO2 Reduction by a Re(bipyridine)-Polypyrrole Film Deposited on Colloid-Imprinted Carbon.

Janina Willkomm、Sara Bouzidi、Erwan Bertin 等 5 位作者2020-08-04ChemRxiv

A rhenium-based CO2 reduction catalyst is impregnated in a polymer film deposited on colloidal imprinted carbon. The film's thickness is variable. The catalyst selectively reduces CO2 to CO with good activity and remains stable for up to 24 hours.

Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceCO2 Reduction Techniques and Catalysts