Graphene oxide based DNA nanoswitches as a programmable pH-responsive biosensor

2016 ◽  
Vol 8 (38) ◽  
pp. 6982-6985 ◽  
Author(s):  
Fengyan Luo ◽  
Qiang Xi ◽  
Jianhui Jiang ◽  
Ruqin Yu
Keyword(s):  
Graphene Oxide ◽  
Conformational Changes ◽  
Selective Adsorption ◽  
Dna Probes ◽  
Ph Responsive

We developed a programmable pH-responsive biosensor by combining the conformational changes of DNA probes and GO-mediated selective adsorption.

scholarly journals A flexible smart membrane consisting of GO composite fibres and upconversion MSNs for microRNA detection

2019 ◽  
Vol 55 (62) ◽  
pp. 9104-9107 ◽  
Author(s):  
Tongxu Gu ◽  
Zhaohui Ren ◽  
Xiang Li ◽  
Jie Huang ◽  
Gaorong Han
Keyword(s):  
Graphene Oxide ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Dna Probes ◽  
Single Stranded Dna ◽  
Microrna Detection ◽  
Flexible Polyurethane

We have developed a photoluminescent membrane for microRNA detection, consisting of mesoporous silica nanoparticles (CaF2:Yb/Ho@MSNs) attached, via single stranded DNA probes, to flexible polyurethane fibres coated with graphene oxide (GO).

A novel magnetic calcium silicate/graphene oxide composite material for selective adsorption of acridine orange from aqueous solutions

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34770-34781 ◽  
Author(s):  
Huan Wang ◽  
Youning Chen ◽  
Yinmao Wei
Keyword(s):  
Composite Material ◽  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Acridine Orange ◽  
Calcium Silicate ◽  
Selective Adsorption ◽  
Adsorption Behavior ◽  
Oxide Composite ◽  
Oxide Composite Material

The adsorption behavior of acridine orange on magnetic calcium silicate/graphene oxide composite material.

pH-responsive, DNA-directed reversible assembly of graphene oxide

2011 ◽  
Vol 7 (9) ◽  
pp. 2681 ◽  
Author(s):  
Konggang Qu ◽  
Jinsong Ren ◽  
Xiaogang Qu
Keyword(s):  
Graphene Oxide ◽  
Ph Responsive

Unexpected Selective Absorption of Lithium in Thermally Reduced Graphene Oxide Membranes

2021 ◽  
Vol 38 (11) ◽  
pp. 116802
Author(s):  
Jie Jiang ◽  
Liuhua Mu ◽  
Yu Qiang ◽  
Yizhou Yang ◽  
Zhikun Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Selective Adsorption ◽  
Lithium Ion ◽  
Experimental Treatment ◽  
Selective Absorption ◽  
Confined Space ◽  
Mass Ratio ◽  
Valence States ◽  
Reduced Graphene

Lithium plays an increasingly important role in scientific and industrial processes, and it is extremely important to extract lithium from a high Mg2+/Li+ mass ratio brine or to recover lithium from the leachate of spent lithium-ion batteries. Conventional wisdom shows that Li+ with low valence states has a much weaker adsorption (and absorption energy) with graphene than multivalent ions such as Mg2+. Here, we show the selective adsorption of Li+ in thermally reduced graphene oxide (rGO) membranes over other metal ions such as Mg2+, Co2+, Mn2+, Ni2+, or Fe2+. Interestingly, the adsorption strength of Li+ reaches up to 5 times the adsorption strength of Mg2+, and the mass ratio of a mixed Mg2+/Li+ solution at a very high value of 500 : 1 can be effectively reduced to 0.7 : 1 within only six experimental treatment cycles, demonstrating the excellent applicability of the rGO membranes in the Mg2+/Li+ separation. A theoretical analysis indicates that this unexpected selectivity is attributed to the competition between cation–π interaction and steric exclusion when hydrated cations enter the confined space of the rGO membranes.

scholarly journals Correction: Controlled synthesis of pentachlorophenol-imprinted polymers on the surface of magnetic graphene oxide for highly selective adsorption

2019 ◽  
Vol 7 (25) ◽  
pp. 15451-15452
Author(s):  
Sheng-Dong Pan ◽  
Hao-Yu Shen ◽  
Li-Xin Zhou ◽  
Xiao-Hong Chen ◽  
Yong-Gang Zhao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Selective Adsorption ◽  
Controlled Synthesis ◽  
Magnetic Graphene Oxide ◽  
Imprinted Polymers ◽  
Magnetic Graphene

Correction for ‘Controlled synthesis of pentachlorophenol-imprinted polymers on the surface of magnetic graphene oxide for highly selective adsorption’ by Sheng-Dong Pan et al., J. Mater. Chem. A, 2014, 2, 15345–15356.

Microstructure-Controllable Graphene Oxide Hydrogel Film Based on a pH-Responsive Graphene Oxide Hydrogel

2012 ◽  
Vol 213 (19) ◽  
pp. 2044-2051 ◽  
Author(s):  
Si-Yong Qin ◽  
Xiang-Ji Liu ◽  
Ren-Xi Zhuo ◽  
Xian-Zheng Zhang
Keyword(s):  
Graphene Oxide ◽  
Ph Responsive ◽  
Hydrogel Film
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