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PS/PANI/MoS2 Hybrid Polymer Composites with High Dielectric Behavior and Electrical Conductivity for EMI Shielding Effectiveness

Abdul Saboor、Saad Mahmood Khalid、Rahim Jan 等 9 位作者2019-08-22Materials

Liquid exfoliated molybdenum disulfide (MoS2) nanosheets and polyaniline (PANI) nanoparticles are dispersed in polystyrene (PS) matrix to fabricate hybrid polymer composites with high dielectric and electromagnetic interference (EMI) shielding behavior. A phase-separated morphology is formed when PANI and MoS2 are inc…

Structural Behavior of Reinforced ConcreteElectromagnetic wave absorption materialsDielectric materials and actuators

Brain Amide Proton Transfer Imaging of Rat With Alzheimer’s Disease Using Saturation With Frequency Alternating RF Irradiation Method

Runrun Wang、Peidong Chen、Zhiwei Shen 等 13 位作者2019-08-22Frontiers in Aging Neuroscience

Amyloid-β (Aβ) deposits and some proteins play some essential roles in AD pathogenesis. Amide proton transfer (APT) imaging as an indicator of tissue protein has shown promise for AD diseases. In this study, we chose 20 AD model rats as the experimental group and 20 sham-operated rats as the control group. They were f…

Advanced MRI Techniques and ApplicationsLanthanide and Transition Metal ComplexesElectron Spin Resonance Studies

Deciphering the Mechanism of Aggregation-Induced Emission of a Quinazolinone Derivative Displaying Excited-State Intramolecular Proton-Transfer Properties: A QM, QM/MM, and MD Study

Hongjuan Wang、Qianqian Gong、Gang Wang 等 5 位作者2019-08-22Journal of Chemical Theory and Computation

A combination of excited-state intramolecular proton transfer (ESIPT) and aggregation-induced emission (AIE) has opened new opportunities to develop color-tunable luminescent materials with high quantum yield. Understanding the emission mechanism of these luminophores is essential for the molecular design and construc…

Organic Light-Emitting Diodes ResearchPhotochemistry and Electron Transfer StudiesLuminescence and Fluorescent Materials

A d-Band Electron Correlated Thermoelectric Thermistor Established in Metastable Perovskite Family of Rare-Earth Nickelates

Jikun Chen、Haiyang Hu、Jiaou Wang 等 7 位作者2019-08-22ACS Applied Materials & Interfaces

The d-band electron correlations shed a light on bridging multiple functionalities within one material system, and this further extends the horizon in material designs and their emerging device applications. Herein, we demonstrate the combination of thermoelectric and thermistor functionalities within the perovskite f…

Ferroelectric and Piezoelectric MaterialsAdvanced Thermoelectric Materials and DevicesMagnetic and transport properties of perovskites and related materials

Enhanced hetero‐elements doping content in biomass waste‐derived carbon for high performance supercapacitor

Ju Fang、Di Guo、Chenxia Kang 等 8 位作者2019-08-22International Journal of Energy Research

Betel nut wastes are firstly modified with nitric acid/thiourea to fabricate hetero-element doping carbon (C-H-T) for energy storage. C-H-T exhibits improved content of O (12.27%), N (2.52%), and S (2.88%) compared with that of purely carbonized carbon with O (9.2%) and N (1.76%). Without nitric acid heat treatment, t…

Advancements in Battery MaterialsSupercapacitor Materials and FabricationConducting polymers and applications

Multiwavelength Anti-Kasha’s Rule Emission on Self-Assembly of Azulene-Functionalized Persulfurated Arene

Yifan Gong、Yunyun Zhou、Bingbing Yue 等 7 位作者2019-08-22The Journal of Physical Chemistry C

Organic emitters that can give birth to emission from highly excited states have been of unique interest currently, whereas ways to strengthen the so-called anti-Kasha’s rule emission at the chemistry level are still limited. Since the appearance and improvement of this emission pathway connects to the special potenti…

Organic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsSynthesis and Properties of Aromatic Compounds

Fabrication of Microporous Aminal-Linked Polymers with Tunable Porosity toward Highly Efficient Adsorption of CO 2 , H 2 , Organic Vapor, and Volatile Iodine

Meng Rong、Liangrong Yang、Li Wang 等 7 位作者2019-08-22Industrial & Engineering Chemistry Research

In this work, a series of microporous aminal-linked polymers (MALPs) are designed and prepared through the polycondensation of 1,4-bis(2,4-diamino-1,3,5-triazine)-benzene and four rigid tetra-aldehydes such as tetra(4-formylphenyl)methane, tetra(4-formylphenyl)silane, 1,3,5,7-tetra(4-formyphenyl)adamantane and 9,9′-sp…

Metal-Organic Frameworks: Synthesis and ApplicationsCarbon Dioxide Capture TechnologiesCovalent Organic Framework Applications

Modification of a first-generation solid oxide fuel cell cathode with Co3O4 nanocubes having selectively exposed crystal planes

Xi Xu、Chao Wang、Marco Fronzi 等 6 位作者2019-08-22Materials for Renewable and Sustainable Energy

Abstract Co3O4 nanocubes with exposed (001) planes were prepared and employed for use as first-generation Sr-doped LaMnO3 (LSM) cathodes in solid oxide fuel cells to improve the cell performance. Theoretical simulations suggest that the Co3O4 (001) plane has the smallest oxygen adsorption and oxygen dissociation energ…

Advancements in Solid Oxide Fuel CellsCatalysis and Oxidation ReactionsElectronic and Structural Properties of Oxides

Comprehensive Insight into Degradation Mechanism of Green Biopolyester Nanocomposites Using Functionalized Cellulose Nanocrystals

Jiaying Zhu、Yuxiang Chen、Hou–Yong Yu 等 8 位作者2019-08-22ACS Sustainable Chemistry & Engineering

Cellulose nanoparticles (CNPs) have been widely reported to improve the crystallization rate, mechanical and thermal properties, as well as degradation behavior of poly(3-hydroxybutyrate- co -3-hydroxyvalerate) (PHBV). Unfortunately, few studies have focused on the relationship between surface functional groups of CNP…

Nanocomposite Films for Food PackagingAdvanced Cellulose Research Studiesbiodegradable polymer synthesis and properties

Resonant behavior of a single plasmonic helix

Katja Höflich、Thorsten Feichtner、Enno Hansjürgen 等 7 位作者2019-08-22Optica

Chiral plasmonic nanostructures will be of increasing importance for future applications in the field of nano optics and metamaterials. Their sensitivity to incident circularly polarized light in combination with the ability of extreme electromagnetic field localization renders them ideal candidates for chiral sensing…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchOrbital Angular Momentum in Optics

Self-Adhesive, Self-Healable, and Triple-Responsive Hydrogel Doped with Polydopamine as an Adsorbent toward Methylene Blue

Sisi Li、Jun Xu、Guohong Yao 等 4 位作者2019-08-22Industrial & Engineering Chemistry Research

As a kind of attractive biomaterial, stimuli-responsive hydrogel had been widely used in wound dressings and wearable devices. However, it remained challenging to prepare a hydrogel with both excellent self-adhesion and self-healing performances. Inspired by the adhesion mechanism of mussel, we prepared a self-adhesiv…

Hydrogels: synthesis, properties, applicationsElectrospun Nanofibers in Biomedical ApplicationsPolymer Surface Interaction Studies

Self‐Assembled Peptide‐Based Nanoprobes for Disease Theranostics and Disease‐Related Molecular Imaging

Chunhua Ren、Zhongyan Wang、Qian Wang 等 5 位作者2019-08-22Small Methods

Abstract Self‐assembling peptide‐based nanoprobes have attracted increasing research interest in recent years because of their inherent advantages, such as good biosafety, flexible designability, ease of synthesis, and degradability. Being precisely regulated by a delicate molecular design, the self‐assembly/disassemb…

Advanced biosensing and bioanalysis techniquesNanoplatforms for cancer theranosticsSupramolecular Self-Assembly in Materials

Spark Plasma Sintered Bulk Nanocomposites of Bi2Te2.7Se0.3 Nanoplates Incorporated Ni Nanoparticles with Enhanced Thermoelectric Performance

Bingsheng Du、Xiaofang Lai、Qiulin Liu 等 10 位作者2019-08-22ACS Applied Materials & Interfaces

Bi 2 Te 3 -based compounds are important near room temperature thermoelectric materials with commercial applications in thermoelectric modules. However, new routes leading to improved thermoelectric performance are highly desirable. Incorporation of superparamagnetic nanoparticles was recently proposed as a means to p…

Advanced Thermoelectric Materials and DevicesAdvanced Thermodynamics and Statistical MechanicsThermal Radiation and Cooling Technologies

Variation of Mechanical Characteristics of Polyurethane Foam: Effect of Test Method

Kibeom Park、Hee-Tae Kim、Nam-Yong Her 等 4 位作者2019-08-22Materials

Polyurethane foam (PUF), a representative insulation material, not only prevents heat conduction but can also support a load. Particular interest in rigid PUF proliferated over the past several years in fields where extreme environments are applied. A closed-cell structure which forms the interior of rigid PUF serves…

Cellular and Composite StructuresPolymer composites and self-healingSilicone and Siloxane Chemistry

Discrete π‐Stacks from Self‐Assembled Perylenediimide Analogues

Feng Su、Guangmei Chen、Peter A. Korevaar 等 10 位作者2019-08-22Angewandte Chemie International Edition

The formation of well-defined finite-sized aggregates represents an attractive goal in supramolecular chemistry. In particular, construction of discrete π-stacked dye assemblies remains a challenge. Reported here is the design and synthesis of a novel type of discrete π-stacked aggregate from two comparable perylenedi…

Metal-Organic Frameworks: Synthesis and ApplicationsLuminescence and Fluorescent MaterialsSupramolecular Self-Assembly in Materials

Placeholder Strategy with Upconversion Nanoparticles−Eriochrome Black T Conjugate for a Colorimetric Assay of an Anthrax Biomarker

Zihan Cheng、Xun Liu、Shang-Qing Zhang 等 6 位作者2019-08-22Analytical Chemistry

The timely warning of the germination of bacterial spores and their prevention are highly important to minimize their potential detrimental effects and for disease control. Thus, a sensitive and selective assay of biomarkers is most desirable. In this work, a nanoprobe is constructed by conjugating lanthanide upconver…

Luminescence and Fluorescent MaterialsBiosensors and Analytical DetectionBacillus and Francisella bacterial research

CDs@ZIF-8 Modified Thin Film Polyamide Nanocomposite Membrane for Simultaneous Enhancement of Chlorine-Resistance and Disinfection Byproducts Removal in Drinking Water

Feihong Wang、Tong Zheng、Ruohan Xiong 等 5 位作者2019-08-22ACS Applied Materials & Interfaces

Reverse osmosis (RO) is an emerging membrane technology for disinfection byproducts (DBPs) removal. However, the chlorine-resistance and DBPs removal performance of thin film composite (TFC) polyamide membranes should be simultaneously improved when used in chlorinated drinking water. This study was dedicated to synth…

Membrane Separation TechnologiesCarbon and Quantum Dots ApplicationsGraphene and Nanomaterials Applications

Auger Suppression in n-Type HgSe Colloidal Quantum Dots

Christopher Melnychuk、Philippe Guyot‐Sionnest2019-08-22ACS Nano

(0.25-0.80 eV) range. The intraband mid-infrared photoluminescence decays show absent or greatly reduced Auger relaxation of biexcitons, proposed as a generic feature of weakly n-type quantum dots due to the sparse density of states in the conduction band. The nonradiative relaxation of the intraband carriers is inste…

Gold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films

African plants with in vitro anti-inflammatory activities: A review

E.E. Elgorashi、Lyndy J. McGaw2019-08-22South African Journal of Botany

Inflammation is a normal response of the body to injury or foreign insult. Inflammation has been known to humankind since the dawn of history as it is characterized by pain. Humans started the search for various means, including plants, to control and manage inflammation since time immemorial. Hence, it is not surpris…

Ethnobotanical and Medicinal Plants StudiesPhytochemical compounds biological activitiesPhytochemistry and Bioactive Compounds

The Importance of Reaction Conditions on the Chemical Structure of N,O-Acylated Chitosan Derivatives

Agnieszka Piegat、Agata Goszczyńska、Tomasz J. Idzik 等 4 位作者2019-08-22Molecules

The structure of acylated chitosan derivatives strongly determines the properties of obtained products, influencing their hydrodynamic properties and thereby their solubility or self-assembly susceptibility. In the present work, the significance of slight changes in acylation conditions on the structure and properties…

Nanocomposite Films for Food PackagingMulticomponent Synthesis of HeterocyclesBiopolymer Synthesis and Applications