Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 18, Issue 47, Pages 32266-32271Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cp06114a
Keywords
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Funding
- National Science Fund for Distinguished Young Scholars of China [61225023]
- National Natural Science Foundation of China [51403077]
- Research Fund for the Doctoral Program of Higher Education [20114401110006]
- Guangdong Natural Science Foundation [S2013030013302, 2014A030313387]
- Youth Science and Technology Innovation Talents of Guangdong [2014TQ01X539]
- Fundamental Research Funds for the Central Universities [21615446]
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A method based on a fiber-optic interferometer to study the pH-dependent interaction between graphene oxide and single-stranded DNA chains is carried out with the assistance of a scanning electron microscope and a confocal laser scanning microscope. The various wavelength shifts of the interferometric fringes of the transmission spectrum reveal the different strengths of interaction between graphene oxide and single-stranded DNA in various pH environments. The present work demonstrates the feasibility of optical fibers for studying the interaction between graphene oxide and biomolecules. It provides a potential means to understand the intermolecular interactions. This technique might effectively supplement the existing tools.
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