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Photonic hydrogel sensors

  • Ali K. Yetisen
  • , Haider Butt
  • , Lisa R. Volpatti
  • , Ida Pavlichenko
  • , Matjaž Humar
  • , Sheldon J.J. Kwok
  • , Heebeom Koo
  • , Ki Su Kim
  • , Izabela Naydenova
  • , Ali Khademhosseini
  • , Sei Kwang Hahn
  • , Seok Hyun Yun
  • Massachusetts General Hospital
  • University of Birmingham
  • Massachusetts Institute of Technology
  • Harvard University
  • Jožef Stefan Institute
  • Technological University Dublin
  • Brigham and Women’s Hospital
  • King Abdulaziz University
  • Konkuk University
  • Pohang University of Science and Technology

Research output: Contribution to journalReview articlepeer-review

177 Scopus citations

Abstract

Analyte-sensitive hydrogels that incorporate optical structures have emerged as sensing platforms for point-of-care diagnostics. The optical properties of the hydrogel sensors can be rationally designed and fabricated through self-assembly, microfabrication or laser writing. The advantages of photonic hydrogel sensors over conventional assay formats include label-free, quantitative, reusable, and continuous measurement capability that can be integrated with equipment-free text or image display. This Review explains the operation principles of photonic hydrogel sensors, presents syntheses of stimuli-responsive polymers, and provides an overview of qualitative and quantitative readout technologies. Applications in clinical samples are discussed, and potential future directions are identified.

Original languageEnglish
Pages (from-to)250-271
Number of pages22
JournalBiotechnology Advances
Volume34
Issue number3
DOIs
StatePublished - 1 May 2016

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Inc.

Keywords

  • Block copolymers
  • Bragg stacks
  • Crystalline colloidal arrays
  • Holography
  • Hydrogels
  • In vitro diagnostics
  • Inverse opals
  • Layer-by-layer deposition
  • Photonic crystals
  • Plasmonics

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