Stimuli‐responsive hydrogel microgels on porous silicon one‐dimensional photonic crystals: Tapping the full potential for optical sensor applications
Ruth Fabiola Balderas Valadez,
Augusto David Ariza Flores,
Claudia Pacholski
Abstract:Porous silicon 1D photonic crystals, namely rugate filters, are covered with a loosely packed hexagonally ordered array of stimuli‐responsive hydrogel microgels, and the optical properties of the resulting hybrid sensor are thoroughly investigated. For this purpose, both rugate filters with and without hydrogel microgel on top are immersed in ethanol/water mixtures possessing different compositions and NaCl solutions. Reflectance spectra of all samples are taken and analyzed concerning the spectral positions a… Show more
“…Next, Pacholski and colleagues fabricated a hybrid sensor made of photonic rugate filters obtained by wet electrochemical etching of silicon and covered them with a stimuli-responsive hydrogel microgels [27]. The authors then demonstrated the potential for developing optical sensors that can detect simultaneously and independently two parameters-the refractive index of the immersion medium and the swelling or collapse of hydrogel microgels.…”
Section: Areas Covered In the Special Topicmentioning
This Special Issue is dedicated to current research activities on Advanced Porous Materials within the framework of “The NETPORE COST Action,” providing a collection of 12 outstanding contributions (four review papers and eight original research papers) from diverse research groups on the latest progresses regarding porous nano‐ and micro‐materials for diverse applications. The contributions herein address the impact of porous materials in basic science, batteries, biosensing, and translational and personalized medicine for the treatment of various diseases. Overall, this Special Issue is expected to provide important background and new knowledge on the latest advances in porous materials and their broad applications.
“…Next, Pacholski and colleagues fabricated a hybrid sensor made of photonic rugate filters obtained by wet electrochemical etching of silicon and covered them with a stimuli-responsive hydrogel microgels [27]. The authors then demonstrated the potential for developing optical sensors that can detect simultaneously and independently two parameters-the refractive index of the immersion medium and the swelling or collapse of hydrogel microgels.…”
Section: Areas Covered In the Special Topicmentioning
This Special Issue is dedicated to current research activities on Advanced Porous Materials within the framework of “The NETPORE COST Action,” providing a collection of 12 outstanding contributions (four review papers and eight original research papers) from diverse research groups on the latest progresses regarding porous nano‐ and micro‐materials for diverse applications. The contributions herein address the impact of porous materials in basic science, batteries, biosensing, and translational and personalized medicine for the treatment of various diseases. Overall, this Special Issue is expected to provide important background and new knowledge on the latest advances in porous materials and their broad applications.
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