Polydiacetylene-coated polyvinylidene fluoride strip aptasensor for colorimetric detection of zinc(II)
| Autor: | Hideaki Tsutsui, Jessica T. Wen, Karen Bohorquez |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
DA
PDA polydiacetylene 2-dimyristoyl-sn-glycero-3-phosphoethanolamine Optical Physics 02 engineering and technology RCS red chromatic shift 01 natural sciences Analytical Chemistry chemistry.chemical_compound Materials Chemistry color response Instrumentation RGB Aqueous solution polyvinylidene fluoride Colorimetric Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics Zinc sensor polydiacetylene Surfaces Coatings and Films Electronic Optical and Magnetic Materials red chromatic shift Membrane Visual detection DMPE Polydiacetylene diacetylene 0210 nano-technology CR RCS PDA PVDF polyvinylidene fluoride Materials science Aptamer DA diacetylene Short Communication Inorganic chemistry education red-green-blue RGB red-green-blue chemistry.chemical_element Zinc Conjugated system 010402 general chemistry Electrical and Electronic Engineering Chromatography Zinc ion PVDF Materials Engineering DMPE 1 2-dimyristoyl-sn-glycero-3-phosphoethanolamine Polyvinylidene fluoride 0104 chemical sciences CR color response chemistry |
| Zdroj: | Sensors and Actuators. B, Chemical |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/j.snb.2016.03.118 |
| Popis: | We report a new polydiacetylene (PDA) sensor strip for simple visual detection of zinc ions in aqueous solution. The specificity of this sensor comes from Zn2+ DNA aptamer probes conjugated onto PDA. Effects of aptamer length and structure on the sensitivity of PDA’s color transition were first investigated. PDA conjugated with the optimal aptamer sequence was then coated onto a strip of polyvinylidene fluoride membrane and photopolymerized by UV exposure. The newly developed sensor successfully exhibited a blue-to-red chromatic change in a semi-quantitative manner in response to zinc ions. No discernable change was observed in solutions containing other common ions. Advantages of this sensor include its ease of fabrication, high specificity, and equipment-free detection, all of which are desirable for in-field applications and use in resource-limited settings. |
| Databáze: | OpenAIRE |
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