title: Understanding the pH-dependent interaction between graphene oxide and single-stranded DNA through a fiber-optic interferometer.
abstract: 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.
authors.affiliation: Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 210632, China. yingyueabc@126.com.
authors.forename: Bo
authors.initials: B
authors.lastname: Yu
authors.affiliation: Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 210632, China. yingyueabc@126.com.
authors.forename: Yunyun
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 210632, China. yingyueabc@126.com.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 210632, China. yingyueabc@126.com.
authors.forename: Tuan
authors.initials: T
authors.lastname: Guo
authors.affiliation: Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 210632, China. yingyueabc@126.com.
authors.forename: Bai-Ou
authors.initials: BO
authors.lastname: Guan
mesh_terms: D004277:DNA, Single-Stranded / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007368:Interferometry; D018613:Microscopy, Confocal; D008855:Microscopy, Electron, Scanning; D010087:Oxides / Q000737:chemistry*
chemical_list: D004277:DNA, Single-Stranded; D010087:Oxides; D006108:Graphite