Electrochemical sensors based on functionalized nanoporous silica for environmental monitoring

Yuehe Lin, Wassana Yantasee, Glen E. Fryxell, Marianne M. Conner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Nanostructured materials enable the development of miniature sensing devices that are compact, low-cost, low-energy-consumption, and easily integrated into field-deployable units. Recently we have successfully developed electrochemical sensors based on functionalized nanostructured materials for the characterization of metal ions. Specifically, glycinylurea self-assembled monolayer on nanoporous silica (Gly-UR SAMMS) has been incorporated in carbon paste electrodes for the detection of toxic metals such as lead, copper, and mercury based on adsorptive stripping voltammetry, while acetamide phosphonic acid self-assembled monolayer on nanoporous silica (Ac-Phos SAMMS) has been used for the detection of uranium. Both electrochemical sensors yield reproducible measurements with excellent detection limits (at ppb level), are selective for target species, does not require the use of mercury film and chelating agents, and require little or no regeneration of electrode materials. The rigid, open, paralleled pore structure combined with suitable interfacial chemistry of SAMMS also results in fast responses of the electrochemical sensors.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsM.S. Islam, A.K. Dutta
Pages554-560
Number of pages7
Volume5593
DOIs
StatePublished - 2004
Externally publishedYes
EventNanosensing Materials and Devices - Philadelphia, PA, United States
Duration: Oct 25 2004Oct 28 2004

Other

OtherNanosensing Materials and Devices
CountryUnited States
CityPhiladelphia, PA
Period10/25/0410/28/04

Fingerprint

Electrochemical sensors
environmental monitoring
Silica
Self assembled monolayers
silicon dioxide
Nanostructured materials
Monitoring
sensors
Electrodes
Mercury (metal)
Voltammetry
Pore structure
Chelation
Surface chemistry
Uranium
Metal ions
energy consumption
Energy utilization
electrode materials
Lead

Keywords

  • Acetamide phosphonic acid
  • Glycinyl-urea
  • Lead
  • SAMMS
  • Self-assembled monolayer on mesoporous silica
  • Uranium
  • Voltammetry

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Lin, Y., Yantasee, W., Fryxell, G. E., & Conner, M. M. (2004). Electrochemical sensors based on functionalized nanoporous silica for environmental monitoring. In M. S. Islam, & A. K. Dutta (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5593, pp. 554-560). [91] https://doi.org/10.1117/12.568110

Electrochemical sensors based on functionalized nanoporous silica for environmental monitoring. / Lin, Yuehe; Yantasee, Wassana; Fryxell, Glen E.; Conner, Marianne M.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / M.S. Islam; A.K. Dutta. Vol. 5593 2004. p. 554-560 91.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lin, Y, Yantasee, W, Fryxell, GE & Conner, MM 2004, Electrochemical sensors based on functionalized nanoporous silica for environmental monitoring. in MS Islam & AK Dutta (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5593, 91, pp. 554-560, Nanosensing Materials and Devices, Philadelphia, PA, United States, 10/25/04. https://doi.org/10.1117/12.568110
Lin Y, Yantasee W, Fryxell GE, Conner MM. Electrochemical sensors based on functionalized nanoporous silica for environmental monitoring. In Islam MS, Dutta AK, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5593. 2004. p. 554-560. 91 https://doi.org/10.1117/12.568110
Lin, Yuehe ; Yantasee, Wassana ; Fryxell, Glen E. ; Conner, Marianne M. / Electrochemical sensors based on functionalized nanoporous silica for environmental monitoring. Proceedings of SPIE - The International Society for Optical Engineering. editor / M.S. Islam ; A.K. Dutta. Vol. 5593 2004. pp. 554-560
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