Iridium oxide nanoparticle induced dual catalytic/inhibition based detection of phenol and pesticide compounds

Mayorga-Martinez C. C., Pino F., KURBANOĞLU S., Rivas L., ÖZKAN S. A., Merkoci A.

JOURNAL OF MATERIALS CHEMISTRY B, cilt.2, sa.16, ss.2233-2239, 2014 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 2 Sayı: 16
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1039/c3tb21765e
  • Dergi Adı: JOURNAL OF MATERIALS CHEMISTRY B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2233-2239
  • Ankara Üniversitesi Adresli: Evet

Özet

Environmental pollution control technology has a great demand for detection systems, particularly for pesticides and phenolic compounds. Moreover, analytical systems are highly required for the dual detection of different pollutants using the same platform. In that direction, a new, reliable, easy to use and disposable biosensor for the detection of catechol and chlorpyrifos is proposed. The designed biosensor with synergic properties between the high conductivity of iridium oxide nanoparticles, lowcost screen printed electrodes and the efficiency of tyrosinase shows broad linearity ranges for catechol and chlorpyrifos detection. Using this biosensor, very low limits of detection for catechol (0.08 mu M) and chlorpyrifos (0.003 mu M) are observed and recoveries of spiked tap and river water samples have also been studied showing very good recoveries.