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Ammonia gas sensor based on SnO2 nanostructure with the enhanced sensing capability at low temperatures

Gyanendra Prakash Shukla、Chandan Kumar Pandey、Manisha Bajpai 等 5 位作者2019-09-02Phase Transitions

We investigated the gas-sensing performance of tin oxide nanowires for ammonia gas at low temperature (∼ 50°C). Tin oxide nanostructures were deposited at 1000°C and 1100°C on gold-coated silicon substrates using the physical vapor deposition method. Gas-sensing measurements were made for ammonia gas at various streng…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsAnalytical Chemistry and Sensors

Guest Exchange Mechanisms in Mono‐Metallic PdII/PtII‐Cages Based on a Tetra‐Pyridyl Calix[4]pyrrole Ligand

Luis Escobar、Eduardo C. Escudero‐Adán、Pablo Ballester2019-09-02Angewandte Chemie

Abstract Planar pyridyl N‐oxides are encapsulated in mono‐metallic PdII/PtII‐cages based on a tetra‐pyridyl calix[4]pyrrole ligand. The exchange dynamics of the cage complexes are slow on both the NMR chemical shift and EXSY timescales, but encapsulation of the guests by the cages is fast on the human timescale. A “Fr…

Supramolecular Chemistry and ComplexesMagnetism in coordination complexesAdvanced NMR Techniques and Applications

Kinematic modeling of a motorcycle rider for design of functional clothing

K.G. Jolly、Sybille Krzywinski、P. V. M. Rao 等 4 位作者2019-09-02International Journal of Clothing Science and Technology

Purpose Whilst motorcycling is an activity of pleasure in most parts of the world, in India, it is a regular mode of commuting. The number of registered motorized two wheelers increased at the rate of 14.7 percent during the year 2016-2017 to reach the figure of 20.19m in 2018. But, with this increase, the number of m…

3D Shape Modeling and AnalysisTextile materials and evaluationsErgonomics and Musculoskeletal Disorders

The effect of halloysite nanotubes dispersions on vegetable-tanned leather thermal stability

Elena Badea、Cristina Carşote、Emanuel Hadîmbu 等 5 位作者2019-09-02Heritage Science

Abstract Leather artefacts in historical collections and old leather bookbindings in archives and libraries frequently show a variety of visible changes which alter their appearance and ability to be used, such as powdery surface, weakened structure, complete or partial loss of the grain layer. However, historical lea…

Cultural Heritage Materials AnalysisClay minerals and soil interactionsTherapeutic Uses of Natural Elements

Optimizing and Evaluating the Antihelminthic Activity of the Biocompatible Zinc Oxide Nanoparticles Against the Ascaridid Nematode, Parascaris equorum In Vitro

Kareem Morsy、Sohair R. Fahmy、Ayman Saber Mohamed 等 6 位作者2019-09-02Acta Parasitologica

PURPOSE: In the present study, the effect of different biocompatible concentrations from ZnO nanoparticles (ZnO NPs) on the physiological state and surface topography of the nematode P. equorum was determined in vitro. METHODS: Different concentrations of ZnO NPs (100, 200, 300 and 400 mg/l) synthesized using the egg…

Nanoparticles: synthesis and applicationsHelminth infection and controlCancer Research and Treatment

Study on Thermal Decomposition Process of Semidry Flue Gas Desulfurization Ash

Yue Yang、Yongtao Fan、Hongling Li 等 7 位作者2019-09-02Energy & Fuels

Semidry flue gas desulfurization ash (FGDA) is a kind of solid waste, which is mainly composed of CaSO 3 and produced by coal-fired power plants. Thermal decomposition has been considered as a promising method for FGDA treatment. However, strict equipment requirements and the high energy consumption brought by the hig…

Catalytic Processes in Materials ScienceAerosol Filtration and Electrostatic PrecipitationIndustrial Gas Emission Control

Fully Recyclable Bio‐Based Thermoplastic Materials from Liquefied Wood

M. Pilar Ruiz、Janine Mijnders、Rogier Tweehuysen 等 7 位作者2019-09-02ChemSusChem

A novel, low-cost, and fully recyclable thermoplastic material is produced from liquefied lignocellulosic biomass and natural fibers. The matrix, which is the heavy fraction of the liquefaction product, is characterized in terms of molecular weight distribution, density, viscosity, softening point and tensile strength…

Advanced Cellulose Research StudiesCatalysis for Biomass ConversionLignin and Wood Chemistry

Aptamers for Targeted Delivery: Current Challenges and Future Opportunities

Chetan Chandola、Muniasamy Neerathilingam2019-09-02IntechOpen eBooks

Aptamers are synthetic ssDNA/RNA molecules that are emerging as novel tools for the development of therapeutics, especially for targeted delivery. Aptamers are comparable to monoclonal antibodies, which are well-established therapeutic molecules, in terms of specificity and affinity to their target. The advantage of a…

Advanced biosensing and bioanalysis techniquesRNA Interference and Gene DeliveryAdvanced Nanomaterials in Catalysis

Capillary orbits

Anaïs Gauthier、Devaraj van der Meer、Jacco H. Snoeijer 等 4 位作者2019-09-02Nature Communications

Millimeter-sized objects trapped at a liquid surface distort the interface by their weight, which in turn attracts them towards each other. This ubiquitous phenomenon, colloquially called the "Cheerios effect" is seen in the clumping of cereals in a breakfast bowl, and turns out to be a highly promising route towards…

Microfluidic and Bio-sensing TechnologiesMicro and Nano RoboticsPickering emulsions and particle stabilization

Adiabatic two-qubit gates in capacitively coupled quantum dot hybrid qubits

Adam Frees、Sebastian Mehl、John King Gamble 等 5 位作者2019-09-02npj Quantum Information

Abstract The ability to tune qubits to flat points in their energy dispersions (“sweet spots”) is an important tool for mitigating the effects of charge noise and dephasing in solid-state devices. However, the number of derivatives that must be simultaneously set to zero grows exponentially with the number of coupled…

Quantum and electron transport phenomenaMechanical and Optical ResonatorsChemical and Physical Properties of Materials

A Bifunctional and Free‐Standing Organic Composite Film with High Flexibility and Good Tensile Strength for Tribological and Electrochemical Applications

Aziz Ahmad、Abolhassan Imani、Lijuan Mao 等 12 位作者2019-09-02Advanced Materials Technologies

Abstract With the development of flexible electronics, flexible lithium‐ion batteries (LIBs) have attracted fabulous attention in the emerging field of wearable and bendable electronic system. The performance of flexible batteries during deformation mainly depends on the electrode flexibility with high mechanical prop…

Advancements in Battery MaterialsSupercapacitor Materials and FabricationAdvanced Battery Materials and Technologies

Compositional alterations in soil bacterial communities exposed to TiO2 nanoparticles are not reflected in functional impacts

Yujia Zhai、Ellard R. Hunting、Gang Liu 等 6 位作者2019-09-02Environmental Research

Titanium dioxide nanoparticles (TiO2NP) are increasingly released in soil ecosystems, while there is limited understanding of the impacts of TiO2NP on soil bacterial communities. Here we investigated the effects of TiO2NP on the taxonomic composition and functional profile of a soil bacterial community over a 60-day e…

Nanoparticles: synthesis and applicationsMicrobial Community Ecology and Physiology

Guest Exchange Mechanisms in Mono‐Metallic PdII/PtII‐Cages Based on a Tetra‐Pyridyl Calix[4]pyrrole Ligand

Luis Escobar、Eduardo C. Escudero‐Adán、Pablo Ballester2019-09-02Angewandte Chemie International Edition

Abstract Planar pyridyl N‐oxides are encapsulated in mono‐metallic PdII/PtII‐cages based on a tetra‐pyridyl calix[4]pyrrole ligand. The exchange dynamics of the cage complexes are slow on both the NMR chemical shift and EXSY timescales, but encapsulation of the guests by the cages is fast on the human timescale. A “Fr…

Supramolecular Chemistry and ComplexesMagnetism in coordination complexesAdvanced NMR Techniques and Applications

Biodiesel Production by Esterification Reaction on K+ Modified MgAl-Hydrotalcites Catalysts

Chenyang Zhang、Wenli Shao、Wei‐Xia Zhou 等 7 位作者2019-09-02Catalysts

K+ modified hydrotalcites and its activity as a solid base catalyst for ultrasonic wave- assisted biodiesel conversion was investigated. The solid alkaline catalysts of the MgAl-hydrotalcites (HT) was prepared by co-precipitation and modified with K+ by impregnation. The influence of K+ incorporation on the performanc…

Catalytic Processes in Materials ScienceBiodiesel Production and ApplicationsCatalysis and Hydrodesulfurization Studies

Designing WO 3 /CdIn 2 S 4 type-II heterojunction with both efficient light absorption and charge separation for enhanced photoelectrochemical water splitting

Yidan Wang、Cheng Chen、Wei Tian 等 5 位作者2019-09-02Nanotechnology

Abstract WO 3 is a typical photoanode material for photoelectrochemical (PEC) water splitting. However, the PEC activity of WO 3 photoanode is limited by its poor visible light absorption as well as severe carrier recombination at the electrode/electrolyte interface. Herein, we integrate small-band-gap CdIn 2 S 4 nano…

Advanced Photocatalysis Techniques2D Materials and ApplicationsCopper-based nanomaterials and applications

Preparation and Formula Analysis of Anti-Biofouling Titania–Polyurea Spray Coating with Nano/Micro-Structure

Yuanzhe Li、Boyang Luo、C. Guet 等 5 位作者2019-09-02Coatings

This paper proposes the preparation and formula analysis of anti-biofouling Titania–polyurea (TiO2–SPUA) spray coating, which uses nano-scale antibacterial and photocatalytic agents, titanium dioxide, to construct regularly hydrophobic surface texture on the polyurea coating system. Through formulating analysis of ant…

Corrosion Behavior and InhibitionMicroplastics and Plastic PollutionMarine Biology and Environmental Chemistry

Boiling enhancement on surfaces with smart wettability transition

Lei Zhang、Tao Wang、Soelha Kim 等 5 位作者2019-09-02Applied Physics Letters

Surfaces integrated with controllable wetting behaviors are playing an increasingly important role in a diverse range of applications. But their application in heat transfer is seldom studied. In this work, the excellent performance of the smart-wettability-control surface in boiling heat transfer was investigated exp…

Surface Modification and SuperhydrophobicityHeat Transfer and Boiling StudiesFluid Dynamics and Thin Films

An overview of nanogel-based vaccines

Luis Hernández‐Adame、Carlos Angulo、Ileana García-Silva 等 5 位作者2019-09-02Expert Review of Vaccines

Introduction: The development of more efficacious vaccines, especially subunit vaccines administered via non-invasive routes, is a priority in vaccinology. Nanogels are materials that can meet the requirements to serve as efficient vaccine delivery vehicles (in terms of thermo-sensitivity, biocompatibility, and pH-res…

Nanoparticle-Based Drug DeliveryImmunotherapy and Immune ResponsesRNA Interference and Gene Delivery

Pyrolysis and kinetic behaviour of black gram straw using thermogravimetric analysis

Bhautik Gajera、N. L. Panwar2019-09-02Energy Sources Part A Recovery Utilization and Environmental Effects

The present study aims to investigating the thermal behavior and pyrolysis kinetics of Black Gram Straw (BGS) degradation using thermogravimetric analyzer at three heating rates (20, 30 and 40°C/min). TGA results showed maximum decomposition took place in the temperature range of 180 to 380°C. Three different iso-conv…

Thermochemical Biomass Conversion ProcessesBiodiesel Production and ApplicationsThermal and Kinetic Analysis

In Situ Liquid Cell TEM Studies on Etching and Growth Mechanisms of Gold Nanoparticles at a Solid–Liquid–Gas Interface

Andreas Hutzler、Birk Fritsch、Michael P. M. Jank 等 7 位作者2019-09-02Advanced Materials Interfaces

Abstract Etching and growth of gold nanoparticles at a solid–liquid–gas interface are investigated via in situ liquid cell transmission electron microscopy. For this purpose, the gold precursor tetrachloroauric acid is enclosed in the wells of a free‐standing, locally thinned silicon nitride film covered by few‐layer…

Advanced Electron Microscopy Techniques and ApplicationsElectrochemical Analysis and ApplicationsElectronic and Structural Properties of Oxides