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	1. Performance improvement of ZnO based MSM UV photodetectors by Au nanoparticles
	LIU Wei,DONG Dayin,AN Yuehua,WANG Shunli,LI Peigang
	Physics 28 May 2018
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (677K B)

	Abstract:Localized surface plasmon resonance (LSPR) improved performance of ZnO based metal-semiconductor-metal (MSM) UV photodetectors is demonstrated by Au nanoparticles (Au NPs). The photocurrent has an obvious enhancement compared to the ZnO based MSM UV photodetectors without Au nanoparticles. The absorption spectrum of ZnO film with Au NPs has a LSPR peak at green light range, which is the explanation of the enhancement for the photocurrent. The results provide a way to enhance the photoelectric performance of ZnO based MSM UV photodetectors.
	TO cite this article:LIU Wei,DONG Dayin,AN Yuehua, et al. Performance improvement of ZnO based MSM UV photodetectors by Au nanoparticles[OL].[28 May 2018] http://en.paper.edu.cn/en_releasepaper/content/4745301


	2. Selective Capture and Release of Hepatocellular Carcinoma Cells by Using Aptamer-Conjugated Magnetic Nanoparticles
	YU Xiaolei,ZHANG Lingling,GUO Shishang
	Physics 18 June 2015
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (4K B)

	Abstract:The detection and study of circulating tumor cells (CTCs) are quite important while also challenging because of the rarity and heterogeneity of CTCs in peripheral blood. Despite the advances of microfluidic techniques improve the capture sensitivity to a certain extent, selectively isolating CTCs with a bias of metastatic potential remains a challenge. Here, aptamer-conjugated magnetic nanoparticles (MNPs) combining a microfluidic platform for selective capture and release of CTCs is demonstrated. The nucleic acid aptamers, which have been screened to target high metastatic hepatocellular carcinoma (HCC) cell line, are conjugated to iron oxide MNPs as capture probe, and the microfluidic chip capable of chaotic mixing and dynamically magnetic separation reaches a final capture efficiency of >60 % toward simulated CTCs spiked in whole blood even at low concentrations. By exonuclease treatment, the isolated HCC cells are further released from the attached MNPs, enabling negligible disruption to cell viability and proliferating functions. Interestingly, the RT-PCR analysis shows relatively higher mRNA expression of cytokeratin 19 toward captured HCC cells than escaped HCC cells, indicating the higher metastatic potential.
	TO cite this article:YU Xiaolei,ZHANG Lingling,GUO Shishang. Selective Capture and Release of Hepatocellular Carcinoma Cells by Using Aptamer-Conjugated Magnetic Nanoparticles[OL].[18 June 2015] http://en.paper.edu.cn/en_releasepaper/content/4646332


	3. Ferromagnetic resonance of transverse domain wall in cylindrical nanowire induced by spin-transfer torque
	YIN Yaoyao,LI Zhixiong,WANG Xiguang,NIE Yaozhuang,GUO Guanghua
	Physics 20 April 2015
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (4K B)

	Abstract:The excitation of normal oscillation modes of a transverse domain wall in cylindrical nanowire induced by alternating spin-polarized current is studied by using micromagnetic simulations. Several localized normal modes are identified and their features are characterized by mapping the spatial distributions of oscillation. When current flows perpendicular to the wall, the excited modes are localized volume modes, surface modes and surface standing-wave modes. For volume modes, the oscillations are mainly distributed at the wall boundary and wall central areas. The oscillations of the surface and surface standing-wave modes are concentrated at the cylindrical surface. The localization and spatial distribution of the normal modes have a close relationship with the total internal field, especially its inhomogeneity. In the case that the current is parallel to the wall, the wall thickness oscillation mode (or breathing mode) is excited. A new kind of thickness modes, surface thickness oscillation mode, is also observed. Besides, the surface mode and surface standing-wave modes are formed around the circle surface at the center of the domain wall.
	TO cite this article:YIN Yaoyao,LI Zhixiong,WANG Xiguang, et al. Ferromagnetic resonance of transverse domain wall in cylindrical nanowire induced by spin-transfer torque[OL].[20 April 2015] http://en.paper.edu.cn/en_releasepaper/content/4639454


	4. Electrical and electrochemical properties of carbon films made of carbon black nanoparticles
	YANG Bingchu,ZHOU Conghua
	Physics 10 August 2014
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (4K B)

	Abstract:In this paper, a kind of paste mixed with graphite, carbon black and TiO2 nanoparticles were prepared which was utilized to fabricate the so-called carbon film. With assistance of scanning electron microscope, surface morphological properties of the films were monitored with variance of wt% of carbon black in the system. Meanwhile, electrical and electrochemical performance of the films was also studied. Furthermore, weight loss of carbon black was considered, thus effect of annealing temperature on micro-structural, electrical and electrochemical properties of the carbon films was examined. Sheet resistance of 3 ohm/sq along with charge transfer resistance of 4 ohm*cm2 were achieved for the carbon films fabricated on FTO substrate and annealed at temperature of 200℃. Annealing at higher temperature was found to deteriorate electrical conductivity due to weight loss of carbon black.
	TO cite this article:YANG Bingchu,ZHOU Conghua. Electrical and electrochemical properties of carbon films made of carbon black nanoparticles[OL].[10 August 2014] http://en.paper.edu.cn/en_releasepaper/content/4606264


	5. Preparation of High photocatalytic activity Cd-doped ZnO nanoflowers
	ZHAI Yingjiao,LI Jinhua,FANG Xuan,CHEN Xinying,CHU Xueying,FANG Fang,WEI Zhipeng,WANG Xiaohua
	Physics 27 September 2013

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