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Rui Tong Lijuan Zhang Qi Song Chuandeng Hu Xuee Chen Kai Lou Xiuqing Gong Yibo Gao Weijia Wen 《Electrophoresis》2019,40(12-13):1699-1707
Point‐of‐care detection for pathogen is of critical need for wide epidemic warning and medical diagnosis. In this work, we have designed and developed a fully portable and integrated microchip based real‐time polymerase chain reaction machine for rapid pathogen detection. The instrument consists of three functional components including heating, optical, and electrical modules, which are integrated into a portable compact box. The microchip is consumable material replaceable to meet various detection needs. Consequently, we demonstrated the outstanding performance of this portable machine for rapid detection of Salmonella and Escherichia coli O157:H7 with the advantage of time‐saving (~25 min), less samples consumption, portability, and user‐friendly operation. 相似文献
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Samuel Clark Ligon Konstanze Seidler Christian Gorsche Markus Griesser Norbert Moszner Robert Liska 《Journal of polymer science. Part A, Polymer chemistry》2016,54(3):394-406
The rapid and uncontrolled nature of network formation from di(meth)acrylate monomers produces high shrinkage stress and results in polymers with oftentimes brittle mechanical properties. Methods for regulating polymerization and network formation are sought. One option is the use of addition–fragmentation chain transfer (AFCT) agents, which are well known to control molecular weight and molecular weight distribution of monofunctional (meth)acrylates. A series of novel and previously described AFCT reagents were synthesized and screened with laser flash photolysis to determine reactivity. Well‐performing AFCT reagents were then tested in polymerizations with monofunctional and difunctional methacrylates. With monofunctional monomers, the molecular weight and polydispersity of the resultant linear polymers tend to decrease with the addition of AFCT agent. In copolymerization with dimethacrylate monomers, the AFCT agents were found to substantially lower and sharpen the glass transition. Sharpness of the glass transition is here indicative of a more regular and homogenous network. After coupling of the instruments, photorheology was performed simultaneously with real‐time IR to show an increase in monomer conversion at the time of gelation, which appears to have a positive effect on reducing shrinkage stress. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016 , 54, 394–406 相似文献
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Hung P. Tong-Viet 《Journal of Pure and Applied Algebra》2021,225(12):106769
In this paper, we determine the structure of finite groups with a small number of real-valued irreducible Brauer characters. 相似文献
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当前“盖斯定律”的教学中,注重加和法、虚拟路径法等解题模型的教学,缺乏在真实情境中对物质转化及其能量关系的理解,学生无法感受到盖斯定律在生产中的价值。本文以“能量视角下煤的气化对于提高煤的燃烧效率的意义”为研究主题,通过分析建模、实验验证、情境回归等认识并应用盖斯定律,从能量视角再认识煤的气化对于提高煤的燃烧效率的意义,并且认识到利用化学反应可以实现对能量进行调控,如对工业废热的再利用,深化能量守恒观和能源节约意识,达成提升学科核心素养的目标。 相似文献
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