Thiofluorographene-hydrophilic graphene derivative with semiconducting and genosensing properties

• Main Authors: Urbanová, Veronika, Holá, Kateřina, Bourlinos, Athanasios B., Čépe, Klára, Ambrosi, Adriano, Loo, Adeline Huiling, Pumera, Martin, Karlický, František, Otyepka, Michal, Zbořil, Radek
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Materials
• Online Access: https://hdl.handle.net/10356/106830; http://hdl.handle.net/10220/25216; http://dx.doi.org/10.1002/adma.201500094
• Institution: Nanyang Technological University

We present the first example of covalent chemistry on fluorographene, enabling the attachment of –SH groups through nucleophilic substitution of fluorine in a polar solvent. The resulting thiographene-like, 2D derivative is hydrophilic with semiconducting properties and bandgap between 1 and 2 eV depending on F/SH ratio. Thiofluorographene is applied in DNA biosensing by electrochemical impedance spectroscopy.