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Molecularly Imprinted Fluorescent Test Strip for Direct, Rapid, and Visual Dopamine Detection in Tiny Amount of Biofluid
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- Wang, Jixiang (författare)
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China; School of the Environment and Safety Engineering, Jiangsu University, Jiangsu, 212013, China
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- Dai, Jiangdong (författare)
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China
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- Xu, Yeqing (författare)
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China; School of the Environment and Safety Engineering, Jiangsu University, Jiangsu, 212013, China
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- (creator_code:org_t)
- 2018-11-23
- 2019
- Engelska.
- Ingår i: Small. - : John Wiley & Sons. - 1613-6810 .- 1613-6829. ; 15:1
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Paper-based assays for detection of physiologically important species are needed in medical theranostics owning to their superiorities in point of care testing, daily monitoring, and even visual readout by using chromogenic materials. In this work, a facile test strip is developed for visual detection of a neurotransmitter dopamine (DA) based on dual-emission fluorescent molecularly imprinted polymer nanoparticles (DE-MIPs). The DE-MIPs, featured with tailor-made DA affinity and good anti-interference, exhibit DA concentration-dependent fluorescent colors, due to the variable ratios of dual-emission fluorescence caused by DA binding and quenching. By facile coating DE-MIPs on a filter paper, the DA test strips are obtained. The resultant test strip, like the simplicity of a pH test paper, shows the potential for directly visual detection of DA levels just by dripping a tiny amount of biofluid sample on it. The test result of real serum samples demonstrates that the DA strip enables to visually and semiquantitatively detect DA within 3 min by using only 10 microL of serum samples and with a low detection limit ((100-150) x 10(-9) m) by naked eye. This work thus offers a facile and efficient strategy for rapid, visual, and on-site detection of biofluids in clinic.
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- Wang, Jixiang
- Dai, Jiangdong
- Xu, Yeqing
- Dai, Xiaohui
- Zhang, Yunlei
- Shi, Weidong
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- Sellergren, Börj ...
- Pan, Guoqing
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