Platinum (II) porphyrin-containing thermoresponsive poly(N- isopropylacrylamide) copolymer as fluorescence dual oxygen and temperature sensor

Xianfeng Zhou; Fengyu Su; Yanqing Tian; Roger H. Johnson; Deirdre Meldrum

doi:10.1016/j.snb.2011.06.061

Platinum (II) porphyrin-containing thermoresponsive poly(N- isopropylacrylamide) copolymer as fluorescence dual oxygen and temperature sensor

Xianfeng Zhou, Fengyu Su, Yanqing Tian, Roger H. Johnson, Deirdre Meldrum

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

33 Scopus citations

Abstract

A random copolymer, poly(NIPAAm-co-PtPorphyrin), consisting of N-isopropylacrylamide (NIPAAm) and platinum (II) porphyrin units, behaves as an optical dual sensor for oxygen and temperature. The dual sensor is designed by incorporating an oxygen-sensitive platinum (II) porphyrin (M1) into a temperature-sensitive polymer (PNIPAAm). The polymer exhibited low critical solution temperature (LCST) property at 31.5 °C. This LCST affected the polymer's aggregation status, which in turn affected the nanostructures, fluorescence intensities, and responses to dissolved oxygen. This enables the polymer to functionalize as a dual temperature and dissolved oxygen sensor. Oxygen response of the platinum (II) porphyrin probes in the polymer followed a two-site Stern-Volmer model, indicating the nonuniform distribution of the probes. The copolymer was used to preliminarily monitor the oxygen consumption of Escherichia coli (E. coli) bacteria. The results indicate a potential application of the polymer in biological fields.

Original language	English (US)
Pages (from-to)	135-141
Number of pages	7
Journal	Sensors and Actuators, B: Chemical
Volume	159
Issue number	1
DOIs	https://doi.org/10.1016/j.snb.2011.06.061
State	Published - Nov 28 2011

Keywords

Dual optical sensor
Oxygen sensor
Platinum porphyrin
Poly(N-isopropylacrylamide)
Temperature sensor

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2011.06.061

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title = "Platinum (II) porphyrin-containing thermoresponsive poly(N- isopropylacrylamide) copolymer as fluorescence dual oxygen and temperature sensor",

abstract = "A random copolymer, poly(NIPAAm-co-PtPorphyrin), consisting of N-isopropylacrylamide (NIPAAm) and platinum (II) porphyrin units, behaves as an optical dual sensor for oxygen and temperature. The dual sensor is designed by incorporating an oxygen-sensitive platinum (II) porphyrin (M1) into a temperature-sensitive polymer (PNIPAAm). The polymer exhibited low critical solution temperature (LCST) property at 31.5 °C. This LCST affected the polymer's aggregation status, which in turn affected the nanostructures, fluorescence intensities, and responses to dissolved oxygen. This enables the polymer to functionalize as a dual temperature and dissolved oxygen sensor. Oxygen response of the platinum (II) porphyrin probes in the polymer followed a two-site Stern-Volmer model, indicating the nonuniform distribution of the probes. The copolymer was used to preliminarily monitor the oxygen consumption of Escherichia coli (E. coli) bacteria. The results indicate a potential application of the polymer in biological fields.",

keywords = "Dual optical sensor, Oxygen sensor, Platinum porphyrin, Poly(N-isopropylacrylamide), Temperature sensor",

author = "Xianfeng Zhou and Fengyu Su and Yanqing Tian and Johnson, {Roger H.} and Deirdre Meldrum",

note = "Funding Information: Financial support was provided by the Microscale Life Sciences Center, a NIH Center of Excellence in Genomic Sciences at Arizona State University: Grant 5P50 HG002360, Dr. Deirdre Meldrum, PI, Director. ",

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AU - Zhou, Xianfeng

AU - Su, Fengyu

AU - Tian, Yanqing

AU - Johnson, Roger H.

AU - Meldrum, Deirdre

N1 - Funding Information: Financial support was provided by the Microscale Life Sciences Center, a NIH Center of Excellence in Genomic Sciences at Arizona State University: Grant 5P50 HG002360, Dr. Deirdre Meldrum, PI, Director.

PY - 2011/11/28

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N2 - A random copolymer, poly(NIPAAm-co-PtPorphyrin), consisting of N-isopropylacrylamide (NIPAAm) and platinum (II) porphyrin units, behaves as an optical dual sensor for oxygen and temperature. The dual sensor is designed by incorporating an oxygen-sensitive platinum (II) porphyrin (M1) into a temperature-sensitive polymer (PNIPAAm). The polymer exhibited low critical solution temperature (LCST) property at 31.5 °C. This LCST affected the polymer's aggregation status, which in turn affected the nanostructures, fluorescence intensities, and responses to dissolved oxygen. This enables the polymer to functionalize as a dual temperature and dissolved oxygen sensor. Oxygen response of the platinum (II) porphyrin probes in the polymer followed a two-site Stern-Volmer model, indicating the nonuniform distribution of the probes. The copolymer was used to preliminarily monitor the oxygen consumption of Escherichia coli (E. coli) bacteria. The results indicate a potential application of the polymer in biological fields.

AB - A random copolymer, poly(NIPAAm-co-PtPorphyrin), consisting of N-isopropylacrylamide (NIPAAm) and platinum (II) porphyrin units, behaves as an optical dual sensor for oxygen and temperature. The dual sensor is designed by incorporating an oxygen-sensitive platinum (II) porphyrin (M1) into a temperature-sensitive polymer (PNIPAAm). The polymer exhibited low critical solution temperature (LCST) property at 31.5 °C. This LCST affected the polymer's aggregation status, which in turn affected the nanostructures, fluorescence intensities, and responses to dissolved oxygen. This enables the polymer to functionalize as a dual temperature and dissolved oxygen sensor. Oxygen response of the platinum (II) porphyrin probes in the polymer followed a two-site Stern-Volmer model, indicating the nonuniform distribution of the probes. The copolymer was used to preliminarily monitor the oxygen consumption of Escherichia coli (E. coli) bacteria. The results indicate a potential application of the polymer in biological fields.

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KW - Poly(N-isopropylacrylamide)

KW - Temperature sensor

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Platinum (II) porphyrin-containing thermoresponsive poly(N- isopropylacrylamide) copolymer as fluorescence dual oxygen and temperature sensor

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