An exonuclease III-aided “turn-on” fluorescence assay for mercury ions based on graphene oxide and metal-mediated “molecular beacon”

RSC Advances ◽  
2015 ◽  
Vol 5 (17) ◽  
pp. 12994-12999 ◽  
Author(s):  
Ying Zhou ◽  
Xiao-Jing Xing ◽  
Dai-Wen Pang ◽  
Hong-Wu Tang
Keyword(s):  
Graphene Oxide ◽  
Molecular Beacon ◽  
Fluorescent Sensor ◽  
Fluorescence Assay ◽  
Mercury Ions ◽  
Exonuclease Iii ◽  
Low Background ◽  
Turn On ◽  
Exo Iii

We present a low background, highly selective and amplified fluorescent sensor for Hg2+ using graphene oxide and Exo III.

A graphene oxide-based fluorescence assay for the sensitive detection of DNA exonuclease enzymatic activity

The Analyst ◽  
2019 ◽  
Vol 144 (21) ◽  
pp. 6231-6239 ◽  
Author(s):  
Xiao Liu ◽  
Yingfen Wu ◽  
Xu Wu ◽  
Julia Xiaojun Zhao
Keyword(s):  
Graphene Oxide ◽  
Enzymatic Activity ◽  
Limit Of Detection ◽  
Fluorescent Sensor ◽  
Fluorescence Assay ◽  
Sensitive Detection ◽  
Exo Iii

A simple and ultra-sensitive fluorescent sensor was developed to detect the enzymatic activity of Exo III with a limit of detection of 0.001 U mL−1.

scholarly journals A Turn-On Fluorescent Sensor for Hg2+ Based on Graphene Oxide

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Yong Wu He ◽  
Yi Feng ◽  
Lian Wei Kang ◽  
Xiao Liang Li
Keyword(s):  
Heavy Metal ◽  
Atomic Force Microscopy ◽  
Graphene Oxide ◽  
Heavy Metal Ions ◽  
Charge Transfer Complex ◽  
Fluorescent Sensor ◽  
Force Microscopy ◽  
Turn On ◽  
Atomic Force ◽  
Ft Ir

A graphene oxide- (GO-) boradiazaindacenes (BODIPY) charge-transfer complex (BGO) has been easily synthesized, and the structure of BGO was confirmed by FT-IR and atomic force microscopy (AFM). Moreover, the BGO was found that could be used as a turn-on fluorescent sensor for Hg2+. Upon addition of Hg2+, the fluorescence of BGO would be enhanced since the energy transfer between BODIPY and GO was inhibited. The selectivity and the competition performance of BGO towards Hg2+ were good among other heavy metal ions.

A label-free fluorescence assay for hydrogen peroxide and glucose based on the bifunctional MIL-53(Fe) nanozyme

2018 ◽  
Vol 54 (14) ◽  
pp. 1762-1765 ◽  
Author(s):  
Tianran Lin ◽  
Yuemei Qin ◽  
Yuanlin Huang ◽  
Ruitao Yang ◽  
Li Hou ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Fluorescent Sensor ◽  
Fluorescence Assay ◽  
Label Free ◽  
Turn On

A turn-on fluorescent sensor of hydrogen peroxide and glucose was developed based on a label-free nanozyme MIL-53(Fe) without other chromogenic reagents.

Graphene Oxide and Metal-Mediated Base Pairs Based “Molecular Beacon” Integrating with Exonuclease I for Fluorescence Turn-on Detection of Biothiols

Small ◽  
2014 ◽  
Vol 10 (16) ◽  
pp. 3412-3420 ◽  
Author(s):  
Xiaojing Xing ◽  
Ying Zhou ◽  
Xueguo Liu ◽  
Daiwen Pang ◽  
Hongwu Tang
Keyword(s):  
Graphene Oxide ◽  
Molecular Beacon ◽  
Base Pairs ◽  
Exonuclease I ◽  
Turn On ◽  
Fluorescence Turn On

A turn-on fluorescent sensor for Hg2+ detection based on graphene oxide and DNA aptamers

2018 ◽  
Vol 42 (13) ◽  
pp. 11147-11152 ◽  
Author(s):  
Huan Guo ◽  
Jingshuai Li ◽  
Yuewen Li ◽  
Dan Wu ◽  
Hongmin Ma ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Conformational Change ◽  
Fluorescent Sensor ◽  
Fluorescence Recovery ◽  
Dna Aptamers ◽  
Turn On

Hg2+-Induced conformational change of DNA aptamers can cause the release of AO from GO surface, which leads to fluorescence recovery.

A novel fluorescent concanavalin A detection platform using an anti-concanavalin A aptamer and graphene oxide

2017 ◽  
Vol 9 (5) ◽  
pp. 744-747 ◽  
Author(s):  
Haiyan Liu ◽  
Yunfeng Bai ◽  
Jun Qin ◽  
Zezhong Chen ◽  
Feng Feng
Keyword(s):  
Graphene Oxide ◽  
Concanavalin A ◽  
Fluorescent Sensor ◽  
High Affinity ◽  
Turn On

A novel fluorescent sensor for simple, rapid and sensitive “turn-on” detection of concanavalin A was developed based on a high-affinity anti-concanavalin A aptamer and graphene oxide.

ChemInform Abstract: A “Turn-on” Coumarin-Based Fluorescent Sensor with High Selectivity for Mercury Ions in Aqueous Media

ChemInform ◽  
2010 ◽  
Vol 41 (35) ◽  
pp. no-no
Author(s):  
Styliani Voutsadaki ◽  
George K. Tsikalas ◽  
Emmanuel Klontzas ◽  
George E. Froudakis ◽  
Haralambos E. Katerinopoulos
Keyword(s):  
High Selectivity ◽  
Fluorescent Sensor ◽  
Aqueous Media ◽  
Mercury Ions ◽  
Turn On
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