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Caiqin Song 제어로봇시스템학회 2018 제어로봇시스템학회 국제학술대회 논문집 Vol.2018 No.10
The least squares problems have wide applications in inverse problems of vibration theory, control theory, digital image and signal processing. In this paper, the conjugate gradient least squares(CGLS) method is extended to solve the least squares Frobenius norm solution of matrix equation with conjugate and transpose unknown. For any initial values, the least squares Frobenius norm solution can be gotten by this new algorithm. Moreover, the numerical example proved that the provided algorithm is much more feasible than the existed LSQR iterative algorithm.
Few-Layered MoS2 Nanostructures for Highly Efficient Visible Light Photocatalysis
Dan Li,Jianwei Li,Caiqin Han,Xinsheng Zhao,Haipeng Chu,Wenyan Lei,Xinjuan Liu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2016 NANO Vol.11 No.10
Few-layered MoS2 nanostructures were successfully synthesized by a simple hydrothermal method without the addition of any catalysts or surfactants. Their morphology, structure and photocatalytic activity were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, electrochemical impedance spectra and UV-Vis absorption spectroscopy, respectively. These results show that the MoS2 nanostructures synthesized at 180℃ exhibit an optimal visible light photocatalytic activity (99%) in the degradation of Rhodamine B owing to the relatively easier adsorption of pollutants, higher visible light absorption and lower electron–hole pair recombination.
Label-free Microarray-based Binding Affinity Constant Measurement with Modified Fluidic Arrangement
junwei Hu,Ru Chen,Chenggang Zhu,Bilin Ge,Xiangdong Zhu,Lan Mi,Jiong Ma,Caiqin Han,Hao Chen,Yiyan Fei 한국바이오칩학회 2018 BioChip Journal Vol.12 No.1
The oblique-incidence reflectivity difference (OI-RD) scanning microscopy has the capability of simultaneously measuring binding curves of a protein probe with tens of thousands molecular targets in a microarray and yielding reaction rate constants. However, the quality of reaction rate constants is influenced by the fluidic system. To improve the quality of reaction rate constant measurement over the entire microarray, we demonstrate a fluidic chamber that allows the fluid to flow from the bottom to the top uniformly across the microarray and thus provides more uniform and accurate measurements of reaction rate constants with simplified fluidic design.
Design and applications of fluorescent detectors for peroxynitrite
Wang, Shan,Chen, Liyan,Jangili, Paramesh,Sharma, Amit,Li, Wei,Hou, Ji-Ting,Qin, Caiqin,Yoon, Juyoung,Kim, Jong Seung Elsevier 2018 Coordination chemistry reviews Vol.374 No.-
<P><B>Abstract</B></P> <P>Peroxynitrite (ONOO<SUP>−</SUP>) is one of the endogenous reactive oxygen species (ROS), which causes damage to a wide array of molecular components in the cells, including DNA and proteins, owing to its high oxidizing as well as nitrating properties. However, the precise pathogenic roles played by this substance in biological systems have not yet been elucidated completely owing to its short lifetime, high reactivity, low concentration and elusive nature in the <I>in vivo</I> applications. Thus, the development of more sensitive and selective techniques for detecting ONOO<SUP>−</SUP>, with high biocompatibilities, sensitivities, and site-specificities, is a significant goal. This review summarizes the recent advances that have been made in developing fluorescent sensors for ONOO<SUP>−</SUP> and their biological applications in diverse living systems.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The general significance of ONOO<SUP>−</SUP> detection. </LI> <LI> The design strategies of functional ONOO<SUP>−</SUP> probes. </LI> <LI> The diverse platforms to design ONOO<SUP>−</SUP> probes, including small molecules, proteins and nanocarriers. </LI> <LI> The diverse biological applications of fluorescent ONOO<SUP>−</SUP> probes. </LI> <LI> Perspectives and potential future directions. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>In this review, the development of fluorescent probes for peroxynitrite detection since 2013 is described. The chemical sensor’s designs has been classified by their reaction based sensing patterns.</P> <P>[DISPLAY OMISSION]</P>