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.

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.

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 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.

Merocyanine 540 adsorbed on polyethylenimine-functionalized graphene oxide nanocomposites as a turn-on fluorescent sensor for bovine serum albumin

2016 ◽  
Vol 18 (33) ◽  
pp. 23400-23406 ◽  
Author(s):  
Tuğba Bayraktutan ◽  
Kadem Meral
Keyword(s):  
Graphene Oxide ◽  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Bovine Serum ◽  
Fluorescent Sensor ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Turn On ◽  
Merocyanine 540

We suggest a simple, fast, sensitive and selective BSA sensor designed by assembling MC540 molecules on PEI–GO nanocomposites.

Monitoring pyrophosphate anions via cobalt(ii)-modulated fluorescence of cadmium sulfide quantum dots

2016 ◽  
Vol 8 (10) ◽  
pp. 2170-2175 ◽  
Author(s):  
Jin-Xia Liu ◽  
Shou-Nian Ding
Keyword(s):  
Quantum Dots ◽  
Fluorescence Quenching ◽  
Cadmium Sulfide ◽  
Fluorescent Sensor ◽  
Fluorescence Recovery ◽  
Turn On ◽  
Modulated Fluorescence ◽  
Cds Qds

An off–on fluorescent sensor for pyrophosphate (PPi) is established based on the fluorescence quenching of CdS QDs in the presence of Co2+(turn-off) and the fluorescence recovery (turn-on) by the continuous addition of PPi.

A “turn-on” fluorescent sensor for detection of Pb2+ based on graphene oxide and G-quadruplex DNA

2013 ◽  
Vol 15 (31) ◽  
pp. 12800 ◽  
Author(s):  
Xiang Li ◽  
Gongke Wang ◽  
Xuelian Ding ◽  
Yuhan Chen ◽  
Yaping Gou ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fluorescent Sensor ◽  
Quadruplex Dna ◽  
Turn On ◽  
G Quadruplex
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