Edge enriched self-assembly of Au nanoparticles: Coffee-ring effect during microcontact printing via agarose stamps

doi:10.1016/j.apsusc.2018.10.261

	Edge enriched self-assembly of Au nanoparticles: Coffee-ring effect during microcontact printing via agarose stamps
	Zhuang, Jin-Liang 1; Zhang, Yu 1; Liu, Xiang-Yue 1; Wang, Chen 1; Mao, Hui-Ling 1; Du, Xuan 2; Tang, Jing 3
刊名	APPLIED SURFACE SCIENCE
	2019-03-01
卷号	469 页码:90-97
关键词	Microcontact printing Coffee-ring effect Self-assembly Agarose stamp Gradient patterns
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2018.10.261
英文摘要	Amino functionalized surfaces were selectively modified via the combination of a wet agarose stamping technique and microcontact printing technique. Because of the specific reaction environments and diffusion of HNO2 confined in agarose stamp, the reaction of amino groups in the edge of the strip pattern was much more intense than other areas. The modified amino groups in the edge areas show higher affinity to Au-NPs than other areas, consequently, edge enriched Au-NPs patterns were observed after the self-assembly of Au-NPs. A "cylindrical droplet" model, in a manner analogous to "coffee-ring" effect, was proposed to describe the diffusion of HNO(2 )from the bulk to the edge in agarose stamp. By using such density varied Au-NPs patterns as templates for the growth of ZnO nanorods, we observed high density of Au-NPs resulting in high density and highly (0 0 1) oriented ZnO nanorods. In contrast, sparse and non-oriented ZnO nanorods were grew on low density of Au-NPs areas. Our findings might open new routes for the fabrication of gradient patterns and extend applications of Au-NPs patterns in surface enhanced Raman scattering and catalysis.
资助项目	NSFC[51302264] ; Natural Science Foundation of Guizhou Province[20161413] ; Natural Science Foundation of Guizhou Province[20157771] ; Ministry of Education of Guizhou Province[KY2017063] ; Ministry of Education of Guizhou Province[KYJJ2017016]
WOS关键词	METAL-ORGANIC FRAMEWORKS ; GOLD NANOPARTICLES ; SURFACE ; MONOLAYERS ; GROWTH ; NANOWIRES ; MICRO ; ZNO ; ITO ; TEMPERATURE
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000454617200012
资助机构	NSFC ; Natural Science Foundation of Guizhou Province ; Ministry of Education of Guizhou Province
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/27719]
专题	中国科学院过程工程研究所
通讯作者	Zhuang, Jin-Liang; Tang, Jing
作者单位	1.Guizhou Normal Univ, Key Lab Funct Mat Chem Guizhou Prov, Sch Chem & Mat Sci, Guiyang 550001, Guizhou, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Fuzhou Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350108, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Zhuang, Jin-Liang,Zhang, Yu,Liu, Xiang-Yue,et al. Edge enriched self-assembly of Au nanoparticles: Coffee-ring effect during microcontact printing via agarose stamps[J]. APPLIED SURFACE SCIENCE,2019,469:90-97.
APA	Zhuang, Jin-Liang.,Zhang, Yu.,Liu, Xiang-Yue.,Wang, Chen.,Mao, Hui-Ling.,...&Tang, Jing.(2019).Edge enriched self-assembly of Au nanoparticles: Coffee-ring effect during microcontact printing via agarose stamps.APPLIED SURFACE SCIENCE,469,90-97.
MLA	Zhuang, Jin-Liang,et al."Edge enriched self-assembly of Au nanoparticles: Coffee-ring effect during microcontact printing via agarose stamps".APPLIED SURFACE SCIENCE 469(2019):90-97.