Imprinted Photonic Hydrogels for the Size‐ and Shell‐Selective Recognition of Nanoparticles

Sensors based on responsive photonic hydrogels have recently attracted considerable attention for visual medical diagnostics, pharmaceutical bioassays, and environmental monitoring. However, the use of these promising materials for the detection of nanoparticles (NPs) has never been explored so far,...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2017-08, Vol.56 (33), p.9710-9714
Main Authors: Gam‐Derouich, Sarra, Bourdillon, Céline, Lakhdar Chaouche, Soraya, Coolen, Laurent, Maître, Agnès, Mangeney, Claire, Schwob, Catherine
Format: Article
Language:English
Subjects:
Bioassays
Chemical Sciences
Environmental monitoring
Equipment costs
Hydrogels
Imprinted polymers
inverse opals
Methacrylic acid
Nanoparticles
photonic hydrogels
Photonics
Polymers
Polymethacrylic acid
Quantum dots
Selectivity
Sensors
Visual perception
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Summary:Sensors based on responsive photonic hydrogels have recently attracted considerable attention for visual medical diagnostics, pharmaceutical bioassays, and environmental monitoring. However, the use of these promising materials for the detection of nanoparticles (NPs) has never been explored so far, although the sensing of nanoobjects is a rapidly evolving area of research. To address this issue, we have combined the concepts of inverse‐opal hydrogels and nanoparticle‐imprinted polymers. In this way, we could obtain a NP‐imprinted photonic hydrogel consisting of a three‐dimensional, highly ordered poly(methacrylic acid) macroporous array, in which nanocavities complementary to the target NPs, in this case colloidal quantum dots, are distributed. This novel type of NP‐imprinted photonic hydrogel sensor was shown to display high sensitivity and selectivity, thus opening new prospects for the development of equipment‐free and cost‐efficient sensing devices for NPs. When the target is a tiny dot: Photonic imprinted hydrogels combining the concepts of inverse opals and nanoparticle‐imprinted polymers were used to detect colloidal quantum dots (QDs). They showed high sensitivity and high selectivity for the target QDs, thus opening new prospects for the development of equipment‐free and cost‐efficient nanoparticle‐sensing devices.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201702540