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31.
Cell encapsulation within hydrogel droplets is transforming what is feasible in multiple fields of biomedical science such as tissue engineering and regenerative medicine, in vitro modeling, and cell-based therapies. Recent advances have allowed researchers to miniaturize material encapsulation complexes down to single-cell scales, where each complex, termed a single-cell microgel, contains only one cell surrounded by a hydrogel matrix while remaining <100 μm in size. With this achievement, studies requiring single-cell resolution are now possible, similar to those done using liquid droplet encapsulation. Of particular note, applications involving long-term in vitro cultures, modular bioinks, high-throughput screenings, and formation of 3D cellular microenvironments can be tuned independently to suit the needs of individual cells and experimental goals. In this progress report, an overview of established materials and techniques used to fabricate single-cell microgels, as well as insight into potential alternatives is provided. This focused review is concluded by discussing applications that have already benefited from single-cell microgel technologies, as well as prospective applications on the cusp of achieving important new capabilities. 相似文献
32.
Andrew N. Kuhn Haidong Zhao Uzoma O. Nwabara Xiaofei Lu Mingyan Liu Yung-Tin Pan Wenjin Zhu Paul J. A. Kenis Hong Yang 《Advanced functional materials》2021,31(26):2101668
Copper catalysts are widely studied for the electroreduction of carbon dioxide (CO2) to value-added hydrocarbon products. Controlling the surface composition of copper nanomaterials may provide the electronic and structural properties necessary for carbon-carbon coupling, thus increasing the Faradaic efficiency (FE) towards ethylene and other multi-carbon (C2+) products. Synthesis and catalytic study of silver-coated copper nanoparticles (Cu@Ag NPs) for the reduction of CO2 are presented. Bimetallic CuAg NPs are typically difficult to produce due to the bulk immiscibility between these two metals. Slow injection of the silver precursor, concentrations of organic capping agents, and gas environment proved critical to control the size and metal distribution of the Cu@Ag NPs. The optimized Cu@Ag electrocatalyst exhibited a very low onset cell potential of −2.25 V for ethylene formation, reaching a FE towards C2+ products (FEC2+) of 43% at −2.50 V, which is 1.0 V lower than a reference Cu catalyst to reach a similar FEC2+. The high ethylene formation at low potentials is attributed to enhanced C C coupling on the Ag enriched shell of the Cu@Ag electrocatalysts. This study offers a new catalyst design towards increasing the efficiency for the electroreduction of CO2 to value-added chemicals. 相似文献
33.
Alekseeva O. V. Rodionova A. N. Syrbu S. A. Bagrovskaya N. A. Noskov A. V. 《Protection of Metals and Physical Chemistry of Surfaces》2021,57(1):30-36
Protection of Metals and Physical Chemistry of Surfaces - Modification of polystyrene (PS) with bentonite was carried out, and film materials with improved sorption properties toward... 相似文献
34.
Kul’ga K. S. Siluyanova M. V. Krivosheev I. A. Kuritsyna V. V. Kuritsyn D. N. Valiev A. A. 《Russian Engineering Research》2022,42(10):1101-1101
Russian Engineering Research - An Erratum to this paper has been published: https://doi.org/10.3103/S1068798X22100355 相似文献
35.
Belov M. I. Anashin D. V. Kabdin N. E. Storchevoy V. F. Sudnik Yu. A. 《Russian Engineering Research》2022,42(11):1110-1116
Russian Engineering Research - The stability of robot-mower motion in a specific direction is considered. The direction is regulated by means of an angular sensor and a programmable controller... 相似文献
36.
Girsova M. A. Golovina G. F. Kurilenko L. N. Anfimova I. N. 《Glass Physics and Chemistry》2022,47(1):S36-S40
Glass Physics and Chemistry - Composite materials (CMs) activated by silver and lanthanum ions based on high-silica porous glass (PG) matrices have been synthesized. The CMs were studied by IR... 相似文献
37.
Babak V. N. Didenko L. P. Sementsova L. A. Kvurt Yu. P. 《Theoretical Foundations of Chemical Engineering》2022,56(3):279-295
Theoretical Foundations of Chemical Engineering - A model is proposed for steam reforming of methane in a catalytic reactor, the working section of which includes two cylindrical chambers separated... 相似文献
38.
Harhoosh A. A. Yurtov E. V. Bakhareva N. I. 《Theoretical Foundations of Chemical Engineering》2022,56(4):545-553
Theoretical Foundations of Chemical Engineering - An analysis of various types of flame retardants in polymer nanocomposites is presented. The mechanisms of action of fire retardants and their... 相似文献
39.
The influence of various additives—including nanoparticles—on coal pitch is investigated, with a view to improving its properties. Surfactants facilitate the formation of coal-pitch products but have little effect on their properties. Materials that react with the pitch components may increase the yield and microstructure of pitch coke. Nanoparticles increase the yield of pitch coke and its aggregate strength. Additives are classified in terms of their effects on the pitch. 相似文献
40.