title: Nano-structure ZnO/Cu2O photoelectrochemical and self-powered biosensor for esophageal cancer cell detection.
abstract: The p-n heterojunction photoelectrochemical biosensor, which comprises a p-type Cu2O film formed by electrochemical deposition and n-type ZnO nanorods formed by the hydrothermal method, is prone to photoelectrochemical reactions and self-powered. Four types of human esophageal cancer cells (ECCs) were detected by this biosensor without requiring an extra bias voltage. The measured photocurrent values of high invasion capacity cancer cells was consistently 2 times higher than those measured by a slight invasion capacity cancer cells. The response time, which was about 0.5 s, allowed repeated measurement.
authors.forename: I-Chen
authors.initials: IC
authors.lastname: Wu
authors.forename: Yu-Hsin
authors.initials: YH
authors.lastname: Weng
authors.forename: Ming-Yen
authors.initials: MY
authors.lastname: Lu
authors.forename: Chun-Ping
authors.initials: CP
authors.lastname: Jen
authors.forename: Vladimir E
authors.initials: VE
authors.lastname: Fedorov
authors.forename: Wei Chung
authors.initials: WC
authors.lastname: Chen
authors.forename: Ming Tsang
authors.initials: MT
authors.lastname: Wu
authors.forename: Chie-Tong
authors.initials: CT
authors.lastname: Kuo
authors.forename: Hsiang-Chen
authors.initials: HC
authors.lastname: Wang
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D003300:Copper / Q000737:chemistry*; D055664:Electrochemical Techniques; D004938:Esophageal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D049329:Nanostructures / Q000737:chemistry*; D043942:Nanotubes / Q000737:chemistry*; D055668:Photochemical Processes; D013059:Spectrum Analysis, Raman; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D003300:Copper; D015034:Zinc Oxide; C000520:cuprous oxide