+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

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



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



Analyst 133(5): 673-677



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 Fe(3+) were investigated using cyclic voltammetry. Through SPR measurements, an affinity constant between chitosan and Fe(3+) of 9.49 x 10(5) M(-1) was determined with a detection limit as low as 250 ppb.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 056558709

Download citation: RISBibTeXText

PMID: 18427691

DOI: 10.1039/b717736d


Related references

Interferometric sensing platform with dielectric nanostructured thin films. Optics Express 17(8): 6655-6664, 2009

Structurally colored thiol chitosan thin films as a platform for aqueous heavy metal ion detection. Biomacromolecules 9(1): 289-295, 2008

Double Cross-Linked Chitosan Composite Films Developed with Oxidized Tannic Acid and Ferric Ions Exhibit High Strength and Excellent Water Resistance. Biomacromolecules 20(2): 801-812, 2019

The oxygen sensing properties and mechanisms of M-doped α-Ti3O5 thin films (M = Ce, W ions). Sensors and Actuators B: Chemical 94(3): 294-297, 2003

Localized surface plasmon resonance of gold nanoparticle-modified chitosan films for heavy-metal ions sensing. Journal of Nanoscience and Nanotechnology 9(1): 350-357, 2009

Effect of chitosan and ions on actuation behavior of cellulose-chitosan laminated films as electro-active paper actuators. Cellulose 14(5): 439-445, 2007

Build up of multilayered thin films with chitosan/DNA pairs on poly(D,L-lactic acid) films: physical chemistry and sustained release behavior. Journal of Biomedical Materials Research. Part a 84(2): 516-522, 2008

Surface morphology and gas-sensing characteristics of SnO2x thin films oxidized from Sn films. Sensors and Actuators B: Chemical 25(1-3): 474-477, 1995

Photoacoustic Sensing of Trapped Fluids in Nanoporous Thin Films: Device Engineering and Sensing Scheme. Acs Applied Materials and Interfaces 10(33): 27947-27954, 2018

Entrapment of uropathogenic E. coli cells into ultra-thin sol-gel matrices on gold thin films: A low cost alternative for impedimetric bacteria sensing. Biosensors and Bioelectronics 124-125: 161-166, 2019

Controlled Release of Ferric-Magnesium Ions From Chitosan/Polyethylene Vinyl Acetate Comatrix for Preventing Pericardial Calcification. Drug Delivery 6(2): 117-126, 1999

Chitosan in nanostructured thin films. Biomacromolecules 11(8): 1897-1908, 2010

Chitosan-magnetite nanocomposite as a sensing platform to bendiocarb determination. Analytical and Bioanalytical Chemistry 410(27): 7229-7238, 2018

Synthesis of ficin-protected AuNCs in a droplet-based microreactor for sensing serum ferric ions. Talanta 200: 547-552, 2019

Chitosan Thin Films on Glass and Silicon Substrates. Microscopy and Microanalysis 21(Suppl. 5): 13-14, 2015