Photoelectrochemical Imaging Using Carbon Dots (CDs) Derived from Chitosan

Carbon dots (CDs) derived from chitosan via a solvothermal method were covalently<br />linked to an indium tin oxide (ITO) surface and showed a direct photoelectrochemical response.<br />We attribute the photocurrent of the ITO-silane-CD surface to a photogenerated electron-transfer<b...

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Main Authors: Dewen Zhang, Nikolaos Papaioannou, Maria-Magdalena Titirici, Steffi Krause
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Proceedings
Subjects:
Online Access:https://www.mdpi.com/2504-3900/2/13/778
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author Dewen Zhang
Nikolaos Papaioannou
Maria-Magdalena Titirici
Steffi Krause
author_facet Dewen Zhang
Nikolaos Papaioannou
Maria-Magdalena Titirici
Steffi Krause
author_sort Dewen Zhang
collection DOAJ
description Carbon dots (CDs) derived from chitosan via a solvothermal method were covalently<br />linked to an indium tin oxide (ITO) surface and showed a direct photoelectrochemical response.<br />We attribute the photocurrent of the ITO-silane-CD surface to a photogenerated electron-transfer<br />process by CDs under illumination. The ITO-silane-CD surface was successfully used for<br />ac-photocurrent imaging. This opens up new applications for CDs as biocompatible and<br />light-addressable electrochemical sensors in bioimaging applications.
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spelling doaj.art-abf1140eba83418b8aa5aa11145e75172022-12-22T03:10:53ZengMDPI AGProceedings2504-39002018-12-0121377810.3390/proceedings2130778proceedings2130778Photoelectrochemical Imaging Using Carbon Dots (CDs) Derived from ChitosanDewen Zhang0Nikolaos Papaioannou1Maria-Magdalena Titirici2Steffi Krause3Institute of Medical Engineering, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an 710061, ChinaSchool of Physics and Astronomy, Queen Mary University of London, London E1 4NS, UKSchool of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UKSchool of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UKCarbon dots (CDs) derived from chitosan via a solvothermal method were covalently<br />linked to an indium tin oxide (ITO) surface and showed a direct photoelectrochemical response.<br />We attribute the photocurrent of the ITO-silane-CD surface to a photogenerated electron-transfer<br />process by CDs under illumination. The ITO-silane-CD surface was successfully used for<br />ac-photocurrent imaging. This opens up new applications for CDs as biocompatible and<br />light-addressable electrochemical sensors in bioimaging applications.https://www.mdpi.com/2504-3900/2/13/778carbon dotsphotoelectrochemistryac-photocurrent imageLAPSLAE
spellingShingle Dewen Zhang
Nikolaos Papaioannou
Maria-Magdalena Titirici
Steffi Krause
Photoelectrochemical Imaging Using Carbon Dots (CDs) Derived from Chitosan
Proceedings
carbon dots
photoelectrochemistry
ac-photocurrent image
LAPS
LAE
title Photoelectrochemical Imaging Using Carbon Dots (CDs) Derived from Chitosan
title_full Photoelectrochemical Imaging Using Carbon Dots (CDs) Derived from Chitosan
title_fullStr Photoelectrochemical Imaging Using Carbon Dots (CDs) Derived from Chitosan
title_full_unstemmed Photoelectrochemical Imaging Using Carbon Dots (CDs) Derived from Chitosan
title_short Photoelectrochemical Imaging Using Carbon Dots (CDs) Derived from Chitosan
title_sort photoelectrochemical imaging using carbon dots cds derived from chitosan
topic carbon dots
photoelectrochemistry
ac-photocurrent image
LAPS
LAE
url https://www.mdpi.com/2504-3900/2/13/778
work_keys_str_mv AT dewenzhang photoelectrochemicalimagingusingcarbondotscdsderivedfromchitosan
AT nikolaospapaioannou photoelectrochemicalimagingusingcarbondotscdsderivedfromchitosan
AT mariamagdalenatitirici photoelectrochemicalimagingusingcarbondotscdsderivedfromchitosan
AT steffikrause photoelectrochemicalimagingusingcarbondotscdsderivedfromchitosan