Short-wavelength ultraviolet dosimeters based on DNA nanostructure-modified graphene field-effect transistors

Zhaolin Ai; Liqian Wang; Qianying Guo; Derong Kong; Yungen Wu; Yunqi Liu; Dacheng Wei

doi:10.1039/d1cc01851e

Short-wavelength ultraviolet dosimeters based on DNA nanostructure-modified graphene field-effect transistors

Chem Commun (Camb). 2021 May 20;57(41):5071-5074. doi: 10.1039/d1cc01851e.

Authors

Zhaolin Ai¹, Liqian Wang¹, Qianying Guo¹, Derong Kong¹, Yungen Wu¹, Yunqi Liu², Dacheng Wei¹

Affiliations

¹ State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China. weidc@fudan.edu.cn and Institute of Molecular Materials and Devices, Fudan University, Shanghai 200433, China.
² Institute of Molecular Materials and Devices, Fudan University, Shanghai 200433, China.

PMID: 33889878
DOI: 10.1039/d1cc01851e

Abstract

Direct and sensitive short-wavelength ultraviolet (UVC) dosimeters could provide a safer disinfection environment against viruses. We developed direct, quantitative, specific and highly sensitive UVC dosimeters based on DNA nanostructure-modified graphene field-effect transistors. Detectable doses of the dosimeters range from 0.005 to 6 kJ m-2 and such dosimeters have at least 5 times better sensitivity than the current direct UV dosimeters.

MeSH terms

DNA / chemistry*
Graphite / chemistry*
Nanostructures / chemistry*
Radiation Dosimeters*
Ultraviolet Rays*

Substances

Graphite
DNA