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901.
902.
Toan Dinh Thanh Nguyen Hoang‐Phuong Phan Tuan‐Khoa Nguyen Van Thanh Dau Nam‐Trung Nguyen Dzung Viet Dao 《Small (Weinheim an der Bergstrasse, Germany)》2020,16(14)
Stretchable and wearable sensor technology has attracted significant interests and created high technological impact on portable healthcare and smart human–machine interfaces. Wearable electromechanical systems are an important part of this technology that has recently witnessed tremendous progress toward high‐performance devices for commercialization. Over the past few years, great attention has been paid to simultaneously enhance the sensitivity and stretchability of the electromechanical sensors toward high sensitivity, ultra‐stretchability, low power consumption or self‐power functionalities, miniaturisation as well as simplicity in design and fabrication. This work presents state‐of‐the‐art advanced materials and rational designs of electromechanical sensors for wearable applications. Advances in various sensing concepts and structural designs for intrinsic stretchable conductive materials as well as advanced rational platforms are discussed. In addition, the practical applications and challenges in the development of stretchable electromechanical sensors are briefly mentioned and highlighted. 相似文献
903.
My Kieu Ha Sook Jin Kwon Jang‐Sik Choi Nguyen Thanh Nguyen Jaewoo Song Yangsoon Lee Young‐Eun Kim Incheol Shin Jin‐Wu Nam Tae Hyun Yoon 《Small (Weinheim an der Bergstrasse, Germany)》2020,16(21)
Understanding the interactions between nanoparticles (NPs) and human immune cells is necessary for justifying their utilization in consumer products and biomedical applications. However, conventional assays may be insufficient in describing the complexity and heterogeneity of cell–NP interactions. Herein, mass cytometry and single‐cell RNA‐sequencing (scRNA‐seq) are complementarily used to investigate the heterogeneous interactions between silver nanoparticles (AgNPs) and primary immune cells. Mass cytometry reveals the heterogeneous biodistribution of the positively charged polyethylenimine‐coated AgNPs in various cell types and finds that monocytes and B cells have higher association with the AgNPs than other populations. scRNA‐seq data of these two cell types demonstrate that each type has distinct responses to AgNP treatment: NRF2‐mediated oxidative stress is confined to B cells, whereas monocytes show Fcγ‐mediated phagocytosis. Besides the between‐population heterogeneity, analysis of single‐cell dose–response relationships further reveals within‐population diversity for the B cells and naïve CD4+ T cells. Distinct subsets having different levels of cellular responses with respect to their cellular AgNP doses are found. This study demonstrates that the complementary use of mass cytometry and scRNA‐seq is helpful for gaining in‐depth knowledge on the heterogeneous interactions between immune cells and NPs and can be incorporated into future toxicity assessments of nanomaterials. 相似文献
904.
Sisi He Yueyu Zhang Longbin Qiu Longsheng Zhang Yun Xie Jian Pan Peining Chen Bingjie Wang Xiaojie Xu Yajie Hu Cao Thang Dinh Phil De Luna Mohammad Norouzi Banis Zhiqiang Wang Tsun‐Kong Sham Xingao Gong Bo Zhang Huisheng Peng Edward H. Sargent 《Advanced materials (Deerfield Beach, Fla.)》2018,30(18)
The ability to release, as electrical energy, potential energy stored at the water:carbon interface is attractive, since water is abundant and available. However, many previous reports of such energy converters rely on either flowing water or specially designed ionic aqueous solutions. These requirements restrict practical application, particularly in environments with quiescent water. Here, a carbon‐based chemical‐to‐electricity device that transfers the chemical energy to electrical form when coming into contact with quiescent deionized water is reported. The device is built using carbon nanotube yarns, oxygen content of which is modulated using oxygen plasma‐treatment. When immersed in water, the device discharges electricity with a power density that exceeds 700 mW m?2, one order of magnitude higher than the best previously published result. X‐ray absorption and density functional theory studies support a mechanism of operation that relies on the polarization of sp2 hybridized carbon atoms. The devices are incorporated into a flexible fabric for powering personal electronic devices. 相似文献
905.
Duong Nguyen Minh Sangwon Eom Lan Anh Thi Nguyen Juwon Kim Jae Hyun Sim Chunhee Seo Jihye Nam Sangheon Lee Soyeon Suk Jaeyong Kim Youngjong Kang 《Advanced materials (Deerfield Beach, Fla.)》2018,30(39)
Perovskite nanoparticle composite films with capability of high‐resolution patterning (≥2 µm) and excellent resistance to various aqueous and organic solvents are prepared by in situ photosynthesis of acrylate polymers and formamidinium lead halide (FAPbX3) nanoparticles. Both positive‐ and negative‐tone patterns of FAPbX3 nanoparticles are created by controlling the size exclusive flow of nanoparticles in polymer networks. The position of nanoparticles is spatially controlled in both lateral and vertical directions. The composite films show high photoluminescence quantum yield (up to 44%) and broad color tunability in visible region (λpeak = 465–630 nm). 相似文献
906.
F. Pelayo García de Arquer Oleksandr S. Bushuyev Phil De Luna Cao‐Thang Dinh Ali Seifitokaldani Makhsud I. Saidaminov Chih‐Shan Tan Li Na Quan Andrew Proppe Md. Golam Kibria Shana O. Kelley David Sinton Edward H. Sargent 《Advanced materials (Deerfield Beach, Fla.)》2018,30(38)
Electrochemical reduction of CO2 is a compelling route to store renewable electricity in the form of carbon‐based fuels. Efficient electrochemical reduction of CO2 requires catalysts that combine high activity, high selectivity, and low overpotential. Extensive surface reconstruction of metal catalysts under high productivity operating conditions (high current densities, reducing potentials, and variable pH) renders the realization of tailored catalysts that maximize the exposure of the most favorable facets, the number of active sites, and the oxidation state all the more challenging. Earth‐abundant transition metals such as tin, bismuth, and lead have been proven stable and product‐specific, but exhibit limited partial current densities. Here, a strategy that employs bismuth oxyhalides as a template from which 2D bismuth‐based catalysts are derived is reported. The BiOBr‐templated catalyst exhibits a preferential exposure of highly active Bi () facets. Thereby, the CO2 reduction reaction selectivity is increased to over 90% Faradaic efficiency and simultaneously stable current densities of up to 200 mA cm?2 are achieved—more than a twofold increase in the production of the energy‐storage liquid formic acid compared to previous best Bi catalysts. 相似文献
907.
Lithography: Perovskite Nanoparticle Composite Films by Size Exclusion Lithography (Adv. Mater. 39/2018)
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908.
Quantum Dots: Perovskite Quantum Dots with Near Unity Solution and Neat‐Film Photoluminescent Quantum Yield by Novel Spray Synthesis (Adv. Mater. 7/2018)
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909.
Arramel Pan Hu Xie Aozhen Hou Songyan Yin Xinmao Tang Chi Sin Hoa Nguyen T. Birowosuto Muhammad D. Wang Hong Dang Cuong Rusydi Andrivo Wee Andrew T. S. Wu Jishan 《Nano Research》2019,12(1):77-84
Nano Research - We present an optical and photoelectron spectroscopic study to elucidate the interfacial electronic properties of organic-inorganic semiconductor heterojunctions formed in a... 相似文献
910.
Tran Thanh Minh Nguyen Hai Phong Hoang Van Duc Dinh Quang Khieu 《Journal of Materials Science》2018,53(4):2453-2471
In the present paper, the microwave synthesis of MOF-199 and its application as an electrode modifier for the simultaneous voltammetric determination of paracetamol (PAR) and caffeine (CAF) were demonstrated. The obtained materials were characterised by X-ray diffraction, a scanning electron microscope (SEM), nitrogen adsorption/desorption isotherms and thermal gravity. The microwave (MW) synthesis of MOF-199 has been compared to its conventional hydrothermal synthesis. It is found that by using the MW synthesis, MOF-199 can be obtained in a much shorter synthesis time with improved yield and textural properties. The electrode modified by MOF-199 was used in order to develop an electroanalytical method that can be used to simultaneously quantify PAR and CAF. The kinetic parameters of the electrode reaction process were also investigated. This proposed method was successfully employed for the simultaneous detection of PAR and CAF in pharmaceutical formulations using the standard addition method and the obtained results compared with the results determined by means of HPLC were found to be statistically similar. 相似文献