Mechanism of DNA Adsorption and Desorption on Graphene Oxide

Langmuir ◽  
2014 ◽  
Vol 30 (42) ◽  
pp. 12587-12595 ◽  
Author(s):  
Joon Soo Park ◽  
Nam-In Goo ◽  
Dong-Eun Kim
Keyword(s):  
Graphene Oxide ◽  
Dna Adsorption ◽  
Adsorption And Desorption

Reusable colloidal graphene oxide suspensions combined with dialysis bags for recovery of trace Y(iii) from aqueous solutions

RSC Advances ◽  
2014 ◽  
Vol 4 (102) ◽  
pp. 58778-58787 ◽  
Author(s):  
Weifan Chen ◽  
Linlin Wang ◽  
Mingpeng Zhuo ◽  
Yiping Wang ◽  
Sulei Fu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Colloidal Suspensions ◽  
Schematic Diagram ◽  
Graphene Oxide Nanosheets ◽  
Adsorption And Desorption ◽  
Dialysis Bag

Schematic diagram of Y(iii) adsorption and desorption on graphene oxide nanosheets in colloidal suspensions loaded in a dialysis bag.

Spatially controlled electro-stimulated DNA adsorption and desorption for biochip applications

2006 ◽  
Vol 21 (11) ◽  
pp. 2137-2145 ◽  
Author(s):  
Andrew L. Hook ◽  
Helmut Thissen ◽  
Jason P. Hayes ◽  
Nicolas H. Voelcker
Keyword(s):  
Dna Adsorption ◽  
Adsorption And Desorption

scholarly journals Adsorption and Desorption of DNA on Graphene Oxide Studied by Fluorescently Labeled Oligonucleotides

Langmuir ◽  
2011 ◽  
Vol 27 (6) ◽  
pp. 2731-2738 ◽  
Author(s):  
Marissa Wu ◽  
Ravindra Kempaiah ◽  
Po-Jung Jimmy Huang ◽  
Vivek Maheshwari ◽  
Juewen Liu
Keyword(s):  
Graphene Oxide ◽  
Adsorption And Desorption ◽  
Fluorescently Labeled Oligonucleotides

scholarly journals Molecular Dynamics Simulations of DNA Adsorption on Graphene Oxide and Reduced Graphene Oxide-PEG-NH2 in the Presence of Mg2+ and Cl− ions

Coatings ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 289 ◽  
Author(s):  
Sebastian Muraru ◽  
Cosmin G. Samoila ◽  
Emil I. Slusanschi ◽  
Jorge S. Burns ◽  
Mariana Ionita
Keyword(s):  
Molecular Dynamics ◽  
Graphene Oxide ◽  
Nucleic Acid ◽  
Reduced Graphene Oxide ◽  
Electrostatic Interactions ◽  
Nucleic Acid Hybridization ◽  
Stacking Interactions ◽  
Dna Adsorption ◽  
Reduced Graphene ◽  
Dynamics Simulations

Graphene and its functionalised derivatives are transforming the development of biosensors that are capable of detecting nucleic acid hybridization. Using a Molecular Dynamics (MD) approach, we explored single-stranded or double-stranded deoxyribose nucleic acid (ssDNA or dsDNA) adsorption on two graphenic species: graphene oxide (GO) and reduced graphene oxide functionalized with aminated polyethylene glycol (rGO-PEG-NH2). Innovatively, we included chloride (Cl−) and magnesium (Mg2+) ions that influenced both the ssDNA and dsDNA adsorption on GO and rGO-PEG-NH2 surfaces. Unlike Cl−, divalent Mg2+ ions formed bridges between the GO surface and DNA molecules, promoting adsorption through electrostatic interactions. For rGO-PEG-NH2, the Mg2+ ions were repulsed from the graphenic surface. The subsequent ssDNA adsorption, mainly influenced by electrostatic forces and hydrogen bonds, could be supported by π–π stacking interactions that were absent in the case of dsDNA. We provide a novel insight for guiding biosensor development.

Short-Length DNA Adsorption on Graphene Oxide-Coated Microbeads for DNA Target Separation from Clinical Samples

2018 ◽  
Vol 18 (9) ◽  
pp. 6364-6368
Author(s):  
Hyun Jin Yoo ◽  
Changyoon Baek ◽  
Donghyun Lee ◽  
Junhong Min
Keyword(s):  
Graphene Oxide ◽  
Short Length ◽  
Clinical Samples ◽  
Dna Adsorption
Sign in / Sign up

Export Citation Format

Share Document