Guiding growth orientation of two-dimensional Au nanocrystals with marine chitin nanofibrils for ultrasensitive and ultrafast sensing hybrids

doi:10.1039/c7tb02792c

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 仿生智能材料团队

	Guiding growth orientation of two-dimensional Au nanocrystals with marine chitin nanofibrils for ultrasensitive and ultrafast sensing hybrids
	Chen, Yijun 1,2; Liu, Zhengqin 2; Li, Mingjie 1; Wu, Xiaochen 1; You, Jun 1; Li, Chaoxu 1
刊名	JOURNAL OF MATERIALS CHEMISTRY B
	2017-12-28
卷号	5 期号:48 页码:9502-9506
DOI	10.1039/c7tb02792c
产权排序	1
文献子类	Article
英文摘要	We demonstrate that marine chitin nanofibrils are able to modulate the growth direction of two-dimensional Au nanocrystals from nanoribbons, nanokites to nanosheets. The mechanism investigation reveals that deacetylation and exfoliation of chitin nanofibrils are essential to template directional growth of Au nanocrystals. The tight adhesion of chitin nanofibrils on the Au surface enables the design of functional hybrids as ultrafast and ultrasensitive responsive devices for humidity and pressure. Interestingly, the humidity responsive device shows an abrupt increase in resistance of up to 3 orders of magnitude with a tiny variation of relative humidity from 62% RH to 63% RH, and was capable of precisely sensing speech. As a conductive filler, only 0.09 vol% gold nanoribbons are able to append to tissue paper with a sheet resistance of up to 220 Omega sq(-1), which can be used as a frequently-used pressure-sensing device. These sensing hybrids are highly promising in smart clothing and electronic skins.
WOS关键词	PERCOLATION-THRESHOLD ; GOLD NANOBELTS ; HUMIDITY SENSOR ; NANOCOMPOSITES ; NANOSHEETS ; WHISKERS
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000418072200007
资助机构	National Natural Science Foundation of China(21474125 ; Chinese "1000 Youth Talent Program'' ; Shandong "Taishan Youth Scholar Program'' ; Natural Science Foundation of Shandong Province(JQ201609) ; Shandong Collaborative Innovation Centre for Marine Biomass Fiber Materials and Textiles ; 51603224)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/9819]
专题	青岛生物能源与过程研究所_仿生智能材料团队
通讯作者	Liu, Zhengqin; You, Jun; Li, Chaoxu
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China 2.Qingdao Univ, Coll Text & Clothing, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yijun,Liu, Zhengqin,Li, Mingjie,et al. Guiding growth orientation of two-dimensional Au nanocrystals with marine chitin nanofibrils for ultrasensitive and ultrafast sensing hybrids[J]. JOURNAL OF MATERIALS CHEMISTRY B,2017,5(48):9502-9506.
APA	Chen, Yijun,Liu, Zhengqin,Li, Mingjie,Wu, Xiaochen,You, Jun,&Li, Chaoxu.(2017).Guiding growth orientation of two-dimensional Au nanocrystals with marine chitin nanofibrils for ultrasensitive and ultrafast sensing hybrids.JOURNAL OF MATERIALS CHEMISTRY B,5(48),9502-9506.
MLA	Chen, Yijun,et al."Guiding growth orientation of two-dimensional Au nanocrystals with marine chitin nanofibrils for ultrasensitive and ultrafast sensing hybrids".JOURNAL OF MATERIALS CHEMISTRY B 5.48(2017):9502-9506.