Low-humidity sensing properties of PAMAM dendrimer and PAMAM-Au nanoparticles measured by a quartz-crystal microbalance

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题名:	Low-humidity sensing properties of PAMAM dendrimer and PAMAM-Au nanoparticles measured by a quartz-crystal microbalance
作者:	Su, PG (Su, Pi-Guey) Tzou, WH (Tzou, Wen-Hau)
贡献者:	Dept Chem
关键词:	Low-humidity sensing Quartz crystal microbalance PAMAM dendrimer Au nanoparticles Adsorption dynamic analysis
日期:	2012-06
上传时间:	2013-02-21 10:39:08 (UTC+8)
摘要:	Low-humidity sensing performance of generation 1 amine terminated polyamidoamine (PAMAM) dendrimer (G1-NH2), generation 5 amine terminated PAMAM dendrimer (G5-NH2) and G5-NH2-Au nanoparticles (G5-NH2-AuNPs) thin films were investigated by using a quartz crystal microbalance (QCM). The formation of AuNPs was characterized by UV-vis spectrophotometer. The characterizations of the thin films were analyzed by atomic force microscopy (AFM). Water vapor molecules adsorbed onto the G5-NH2-AuNPs thin film had a larger frequency shift than the G1-NH2 and G5-NH2 thin films. Adsorption dynamic analysis, molecular mechanics calculation (association constant), was applied to elucidate how number of amine surface functional groups of PAMAM dendrimer and doped AuNPS in PAMAM dendrimer increase the sensitivity to low-humidity. (C) 2012 Elsevier B.V. All rights reserved.
關聯:	SENSORS AND ACTUATORS A-PHYSICAL 卷: 179 頁數: 44-49
显示于类别:	[地理學系] 期刊論文

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