Seed-mediated grown silver nanoparticles as a colorimetric sensor for detection of ascorbic acid
作者: Simindokht RostamiAli MehdiniaAli Jabbari
作者单位: 1Department of Chemistry, Faculty of Science, K. N. Toosi University of Technology, Tehran, Iran
2Department of Marine Living Science, Ocean Sciences Research Center, Iranian National Institute for Oceanography and Atmospheric Science, Tehran, Iran
刊名: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2017
来源数据库: Elsevier Journal
DOI: 10.1016/j.saa.2017.03.020
关键词: Seed-mediated growth strategyColorimetric sensorLocalized surface plasmon resonanceSilver nanoparticleAscorbic acid
原始语种摘要: Abstract(#br)A simple and sensitive approach was demonstrated for detection of ascorbic acid (AA) based on seed-mediated growth of silver nanoparticles (Ag NPs). According to the seeding strategy, silver ions existing in the growth solution were reduced to silver atoms on the surface of silver seeds via redox reaction between silver ions and AA. This process -led to appear an absorption band in near 420nm owing to the localized surface plasmon resonance peak of the generated Ag NPs. This change in absorption spectra of Ag NPs caused a change in color of the mixture from colorless to yellow. It was found that the changes in absorption intensity at 420nm have a good relationship with the concentration of AA. Also, detection of AA was achieved through...
全文获取路径: Elsevier  (合作)

  • silver 
  • nanoparticle 乳酸
  • sensor 感受器
  • grown 生长
  • plasmon 细胞质基因
  • Silver 
  • surface 
  • resonance 共振
  • detection 探测
  • growth 生长