Thin chitosan films as a platform for SPR sensing of ferric ions - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Analyst Année : 2008

Thin chitosan films as a platform for SPR sensing of ferric ions

Résumé

Homogeneous chitosan films of various thicknesses (10–65 nm) were deposited on thin gold films through spin coating. The resulting interfaces were characterized using surface plasmon resonance (SPR), AFM, profilometry and cyclic voltammetry. The strong chelating properties of chitosan films to Fe3+ were investigated using cyclic voltammetry. Through SPR measurements, an affinity constant between chitosan and Fe3+ of 9.49 × 105 M-1 was determined with a detection limit as low as 250 ppb.

Domaines

Matériaux

Dates et versions

hal-00417178 , version 1 (15-09-2009)

Identifiants

Citer

Holly A. Mcilwee, Caroline L. Schauer, Vera G. Praig, Rabah Boukherroub, Sabine Szunerits. Thin chitosan films as a platform for SPR sensing of ferric ions. Analyst, 2008, 133 (5), pp. 673-677. ⟨10.1039/b717736d⟩. ⟨hal-00417178⟩
427 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More