{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:39:38Z","timestamp":1760243978057,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2009,2,19]],"date-time":"2009-02-19T00:00:00Z","timestamp":1235001600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/linproxy.fan.workers.dev:443\/https\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Four nanostructured Au electrodes were prepared by a simple and templateless electrochemical deposition technique. After complexing with a biotinylated polythiophene derivative (PTBL), photocurrent generation and performance of PTBL\/Au-nanostructured electrodes as photoelectrochemical biosensors were investigated. Among these four nanostructured Au electrodes, vertically oriented nanobranches on the electrode significantly improved the photoelectric conversion, because the vertically oriented nanostructures not only benefit light harvesting but also the transfer of the photogenerated charge carriers. Owing to this advantaged nanostructure, the PTBL\/Au-nanobranch electrode showed higher sensitivity and faster response times in the photoelectrochemical detection of a streptavidin-biotin affinity reaction compared to a PTBL\/Au-nanoparticle electrode.<\/jats:p>","DOI":"10.3390\/s90201094","type":"journal-article","created":{"date-parts":[[2009,2,20]],"date-time":"2009-02-20T05:01:28Z","timestamp":1235106088000},"page":"1094-1107","update-policy":"https:\/\/linproxy.fan.workers.dev:443\/https\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Enhanced Photoelectrochemical Detection of Bioaffinity Reactions by Vertically Oriented Au Nanobranches Complexed with a Biotinylated Polythiophene Derivative"],"prefix":"10.3390","volume":"9","author":[{"given":"Huiqiong","family":"Zhou","sequence":"first","affiliation":[{"name":"National Center for Nanoscience and Technology, Beijing 100190, P.R. China"}]},{"given":"Yanli","family":"Tang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China"}]},{"given":"Jin","family":"Zhai","sequence":"additional","affiliation":[{"name":"Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China"}]},{"given":"Shu","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China"}]},{"given":"Zhiyong","family":"Tang","sequence":"additional","affiliation":[{"name":"National Center for Nanoscience and Technology, Beijing 100190, P.R. China"}]},{"given":"Lei","family":"Jiang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China"}]}],"member":"1968","published-online":{"date-parts":[[2009,2,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"338","DOI":"10.1038\/35104607","article-title":"Photoelectrochemical cells","volume":"414","year":"2001","journal-title":"Nature"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"352","DOI":"10.1038\/nmat1635","article-title":"Nanoscale avalanche photodiodes for highly sensitive and spatially resolved photon detection","volume":"5","author":"Hayden","year":"2006","journal-title":"Nat. Mater."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1597","DOI":"10.1039\/B512182E","article-title":"Recent developments in II\u2013VI and III\u2013VI semiconductors and their applications in solar cells","volume":"16","author":"Afzaal","year":"2006","journal-title":"J. Mater. 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