Surface plasmon resonance as a probe of the complexing process of valinomycin Langmuir-Blodgett films by potassium ions

X. L. Yang; P. Dutta; G. K. Wong; J. B. Ketterson

doi:10.1016/0040-6090(92)90745-W

Surface plasmon resonance as a probe of the complexing process of valinomycin Langmuir-Blodgett films by potassium ions

X. L. Yang^*, P. Dutta, G. K. Wong, J. B. Ketterson

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We have demonstrated that the surface plasmon resonance (SPR) method is sensitive to the complexing process of potassium ions with valinomycin Langmuir-Blodgett (LB) films. Our SPR results allow us to conclude that the valinomycin molecule is nearly parallel to the substrate surface for both pure valinomycin LB films and films formed from a mixture of valinomycin and stearic acid. It is also shown that, in the presence of stearic acid, valinomycin LB films can reversibly complex with potassium ions: a complexed film exposed to pure water will release K⁺ ions, suggesting the possible use of this system as a reversible sensor.

Original language	English (US)
Pages (from-to)	210-214
Number of pages	5
Journal	Thin Solid Films
Volume	219
Issue number	1-2
DOIs	https://doi.org/10.1016/0040-6090(92)90745-W
State	Published - Oct 30 1992

Funding

We would like to thank H. F. Gibbard for encouraging some of this work and B. M. Abraham for useful conversations. This work was supported by the National Science Foundation under Grant DMR 8706456.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/0040-6090(92)90745-W

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title = "Surface plasmon resonance as a probe of the complexing process of valinomycin Langmuir-Blodgett films by potassium ions",

abstract = "We have demonstrated that the surface plasmon resonance (SPR) method is sensitive to the complexing process of potassium ions with valinomycin Langmuir-Blodgett (LB) films. Our SPR results allow us to conclude that the valinomycin molecule is nearly parallel to the substrate surface for both pure valinomycin LB films and films formed from a mixture of valinomycin and stearic acid. It is also shown that, in the presence of stearic acid, valinomycin LB films can reversibly complex with potassium ions: a complexed film exposed to pure water will release K+ ions, suggesting the possible use of this system as a reversible sensor.",

author = "Yang, {X. L.} and P. Dutta and Wong, {G. K.} and Ketterson, {J. B.}",

note = "Funding Information: We would like to thank H. F. Gibbard for encouraging some of this work and B. M. Abraham for useful conversations. This work was supported by the National Science Foundation under Grant DMR 8706456.",

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doi = "10.1016/0040-6090(92)90745-W",

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T1 - Surface plasmon resonance as a probe of the complexing process of valinomycin Langmuir-Blodgett films by potassium ions

AU - Yang, X. L.

AU - Dutta, P.

AU - Wong, G. K.

AU - Ketterson, J. B.

N1 - Funding Information: We would like to thank H. F. Gibbard for encouraging some of this work and B. M. Abraham for useful conversations. This work was supported by the National Science Foundation under Grant DMR 8706456.

PY - 1992/10/30

Y1 - 1992/10/30

N2 - We have demonstrated that the surface plasmon resonance (SPR) method is sensitive to the complexing process of potassium ions with valinomycin Langmuir-Blodgett (LB) films. Our SPR results allow us to conclude that the valinomycin molecule is nearly parallel to the substrate surface for both pure valinomycin LB films and films formed from a mixture of valinomycin and stearic acid. It is also shown that, in the presence of stearic acid, valinomycin LB films can reversibly complex with potassium ions: a complexed film exposed to pure water will release K+ ions, suggesting the possible use of this system as a reversible sensor.

AB - We have demonstrated that the surface plasmon resonance (SPR) method is sensitive to the complexing process of potassium ions with valinomycin Langmuir-Blodgett (LB) films. Our SPR results allow us to conclude that the valinomycin molecule is nearly parallel to the substrate surface for both pure valinomycin LB films and films formed from a mixture of valinomycin and stearic acid. It is also shown that, in the presence of stearic acid, valinomycin LB films can reversibly complex with potassium ions: a complexed film exposed to pure water will release K+ ions, suggesting the possible use of this system as a reversible sensor.

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Surface plasmon resonance as a probe of the complexing process of valinomycin Langmuir-Blodgett films by potassium ions

Abstract

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