Controlled-synthesis of alumina-graphene oxide nanocomposite coupled with DNA/ sulfide fluorophore for eco-friendly "Turn off/on" H2S nanobiosensor

doi:10.1016/j.talanta.2019.120655

	Controlled-synthesis of alumina-graphene oxide nanocomposite coupled with DNA/ sulfide fluorophore for eco-friendly "Turn off/on" H2S nanobiosensor
	Samak, Nadia A.1,2,3,4; Selim, Mohamed S.5,6; Hao, Zhifeng 6; Xing, Jianmin 1,2,3
刊名	TALANTA
	2020-05-01
卷号	211 页码:11
关键词	gamma-Al2O3 nanorods Graphene oxide Fluorophore H2S detection Nanobiosensor
ISSN号	0039-9140
DOI	10.1016/j.talanta.2019.120655
英文摘要	Hydrogen sulfide (H2S) is a toxic environmental pollutant and crucial gas-signaling agent of human physiology. There is an urgent need for developing a sensitive and selective detection approach for H2S. Herein, a novel turn off/on response approach using gamma-Al2O3 nanorods anchored on the surface graphene oxide (GO) nanosheets and coupled with DNA/sulfide fluorophore (SF) for H2S detection at room temperature was developed. The fluorescent fluorophore, DNA/SF, remains quenched on the super quencher gamma-Al2O3-GO hybrid surface. In the existence of H2S, DNA/SF fluorophore was detached from gamma-Al2O3-GO hybrid surface because of the strong physical adsorption interaction between H2S molecules and gamma-Al2O3-GO surface. The recovered fluorescence intensity gave direct insight about H2S concentration in the medium. The developed gamma-Al2O3-GO/DNA/SF nanobiosensor shows high sensitivity with 75 to 2.5 mu M linear detection range of H2S, and a high binding constant of 9.8 x 10(3) M-1. The nanobiosensor is very selective toward H2S in the presence of various interfering anions and thiols and used for H2S detection in real water samples. gamma-Al2O3-GO/DNA/SF nanobiosensor provides a cheap, simple, and highly selective H2S detection method at room temperature.
资助项目	National Natural Science Foundation of China[21878307] ; National Natural Science Foundation of China[31800030] ; National Natural Science Foundation of China[31872633] ; Applied Science and Technology Research and Development Special Foundation of Guangdong Province[2016B090930004] ; 65th Batch of General Aid from China Postdoctoral Science Foundation[2019M652822]
WOS关键词	HYDROGEN-SULFIDE ; SENSITIVE DETECTION ; FLUORESCENT-PROBE ; SENSOR ; GAMMA-AL2O3 ; COMPOSITES ; ABSORPTION ; INHIBITION ; BIOSENSOR ; POLYMER
WOS研究方向	Chemistry
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000518708300006
资助机构	National Natural Science Foundation of China ; Applied Science and Technology Research and Development Special Foundation of Guangdong Province ; 65th Batch of General Aid from China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/40538]
专题	中国科学院过程工程研究所
通讯作者	Hao, Zhifeng; Xing, Jianmin
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Coll Chem Engn, 19 Yuquan Rd, Beijing 100049, Peoples R China 4.Egyptian Petr Res Inst, Proc Design & Dev Dept, Cairo 11727, Egypt 5.Guangdong Univ Technol, Guangdong Regular Higher Educ Inst, Sch Chem Engn & Light Ind, Key Lab Clean Chem Technol, Guangzhou 510006, Peoples R China 6.EPRI, Petr Applicat Dept, Cairo 11727, Egypt
推荐引用方式 GB/T 7714	Samak, Nadia A.,Selim, Mohamed S.,Hao, Zhifeng,et al. Controlled-synthesis of alumina-graphene oxide nanocomposite coupled with DNA/ sulfide fluorophore for eco-friendly "Turn off/on" H2S nanobiosensor[J]. TALANTA,2020,211:11.
APA	Samak, Nadia A.,Selim, Mohamed S.,Hao, Zhifeng,&Xing, Jianmin.(2020).Controlled-synthesis of alumina-graphene oxide nanocomposite coupled with DNA/ sulfide fluorophore for eco-friendly "Turn off/on" H2S nanobiosensor.TALANTA,211,11.
MLA	Samak, Nadia A.,et al."Controlled-synthesis of alumina-graphene oxide nanocomposite coupled with DNA/ sulfide fluorophore for eco-friendly "Turn off/on" H2S nanobiosensor".TALANTA 211(2020):11.