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Visible photoelectrochemical sensing platform by in situ generated CdS quantum dots decorated branched-TiO2 nanorods equipped with Prussian blue electrochromic display.
Biosens Bioelectron. 2017 Mar 15; 89(Pt 2):859-865.BB

Abstract

In this study, based on in situ generation of CdS quantum dots (QDs) on the surface of branched TiO2 (B-TiO2) nanorods, an solar innovative photoelectrochemical (PEC) sensing platform was constructed for real-time, and sensitive detection of cellular H2S. Specifically, B-TiO2 nanorods arrays consisting of TiO2 nanorods directly grown on fluorine-doped tin oxide (FTO) further using TiCl3 mediated surface treatment of TiO2 nanorods are designed and fabricated as a new type of photoelectrode. CdS quantum dots (QDs) was formed on the surface of B-TiO2 nanorods arrays through the reaction between Cd2+ and S2-. And a significant enhancement in the photocurrent was obtained that ascribed to the formation of CdS-B-TiO2 heterostructures, thus leading to sensitive PEC recording of the H2S level in buffer and cellular environments. By using Prussian blue (PB) a electrochromic material to capture the photoelectron generated from the photoelectrode, a new visual system was proposed due to the formation of Prussian white (PW), which could be used to visualize the quantum photoelectric effect. This novel PEC sensing platform not only achieved satisfied analysis results toward S2-, but also showed excellent sensitivity, selectivity, low cost, and portable features. The strategy through the in situ generation of semiconductor nanoparticles on the surface of wide band-gap semiconductor paves the way for the improvements of PEC analytical performance. Meanwhile, the quantitative read-out electrochromic display paves a facile avenue and initiates new opportunities for creation of cheap, miniaturization sensors for other relevant analytes.

Authors+Show Affiliations

School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, PR China.School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China. Electronic address: ujn.yujh@gmail.com.School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China; College of Biological Sciences and Technology, University of Jinan, Jinan 250022, PR China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27818042

Citation

Wang, Yanhu, et al. "Visible Photoelectrochemical Sensing Platform By in Situ Generated CdS Quantum Dots Decorated branched-TiO2 Nanorods Equipped With Prussian Blue Electrochromic Display." Biosensors & Bioelectronics, vol. 89, no. Pt 2, 2017, pp. 859-865.
Wang Y, Ge S, Zhang L, et al. Visible photoelectrochemical sensing platform by in situ generated CdS quantum dots decorated branched-TiO2 nanorods equipped with Prussian blue electrochromic display. Biosens Bioelectron. 2017;89(Pt 2):859-865.
Wang, Y., Ge, S., Zhang, L., Yu, J., Yan, M., & Huang, J. (2017). Visible photoelectrochemical sensing platform by in situ generated CdS quantum dots decorated branched-TiO2 nanorods equipped with Prussian blue electrochromic display. Biosensors & Bioelectronics, 89(Pt 2), 859-865. https://doi.org/10.1016/j.bios.2016.09.106
Wang Y, et al. Visible Photoelectrochemical Sensing Platform By in Situ Generated CdS Quantum Dots Decorated branched-TiO2 Nanorods Equipped With Prussian Blue Electrochromic Display. Biosens Bioelectron. 2017 Mar 15;89(Pt 2):859-865. PubMed PMID: 27818042.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Visible photoelectrochemical sensing platform by in situ generated CdS quantum dots decorated branched-TiO2 nanorods equipped with Prussian blue electrochromic display. AU - Wang,Yanhu, AU - Ge,Shenguang, AU - Zhang,Lina, AU - Yu,Jinghua, AU - Yan,Mei, AU - Huang,Jiadong, Y1 - 2016/09/29/ PY - 2016/08/02/received PY - 2016/09/28/revised PY - 2016/09/29/accepted PY - 2016/11/8/pubmed PY - 2017/2/28/medline PY - 2016/11/8/entrez KW - B-TiO(2) nanorod arrays, CdS QDs KW - Photoelectrochemical KW - Prussian blue, electrochromic, H(2)S SP - 859 EP - 865 JF - Biosensors & bioelectronics JO - Biosens Bioelectron VL - 89 IS - Pt 2 N2 - In this study, based on in situ generation of CdS quantum dots (QDs) on the surface of branched TiO2 (B-TiO2) nanorods, an solar innovative photoelectrochemical (PEC) sensing platform was constructed for real-time, and sensitive detection of cellular H2S. Specifically, B-TiO2 nanorods arrays consisting of TiO2 nanorods directly grown on fluorine-doped tin oxide (FTO) further using TiCl3 mediated surface treatment of TiO2 nanorods are designed and fabricated as a new type of photoelectrode. CdS quantum dots (QDs) was formed on the surface of B-TiO2 nanorods arrays through the reaction between Cd2+ and S2-. And a significant enhancement in the photocurrent was obtained that ascribed to the formation of CdS-B-TiO2 heterostructures, thus leading to sensitive PEC recording of the H2S level in buffer and cellular environments. By using Prussian blue (PB) a electrochromic material to capture the photoelectron generated from the photoelectrode, a new visual system was proposed due to the formation of Prussian white (PW), which could be used to visualize the quantum photoelectric effect. This novel PEC sensing platform not only achieved satisfied analysis results toward S2-, but also showed excellent sensitivity, selectivity, low cost, and portable features. The strategy through the in situ generation of semiconductor nanoparticles on the surface of wide band-gap semiconductor paves the way for the improvements of PEC analytical performance. Meanwhile, the quantitative read-out electrochromic display paves a facile avenue and initiates new opportunities for creation of cheap, miniaturization sensors for other relevant analytes. SN - 1873-4235 UR - https://www.unboundmedicine.com/medline/citation/27818042/Visible_photoelectrochemical_sensing_platform_by_in_situ_generated_CdS_quantum_dots_decorated_branched_TiO2_nanorods_equipped_with_Prussian_blue_electrochromic_display_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-5663(16)30991-5 DB - PRIME DP - Unbound Medicine ER -