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Related Experiment Video

Updated: Jul 19, 2025

Hydrogel Nanoparticle Harvesting of Plasma or Urine for Detecting Low Abundance Proteins
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Imprinted Hydrogel Nanoparticles for Protein Biosensing: A Review.

Ana T Silva1, Rui Figueiredo1, Manuel Azenha1

  • 1CIQUP/IMS, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre 687, s/n, Porto 4169-007, Portugal.

ACS Sensors
|August 9, 2023
PubMed
Summary
This summary is machine-generated.

Molecular imprinting (MI) technology, particularly hydrogel molecularly imprinted polymer nanoparticles (MIP NPs), shows great promise for peptide and protein biosensing. These nanoMIPs offer advantages over traditional antibodies in various applications.

Keywords:
biomimeticbiosensingepitope imprintinghydrogelsmolecularly imprinted nanoparticles (MIP NPs)nanoMIPsnanogelsprecipitation polymerizationproteinssolid-phase synthesis

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Analytical Chemistry
  • Biotechnology

Background:

  • Molecular imprinting (MI) technology has advanced significantly, driven by nanotechnology, leading to nanoscale imprinted materials like molecularly imprinted polymer nanoparticles (MIP NPs).
  • Hydrogels offer biocompatibility and tunable properties, making them suitable for developing analyte-responsive imprinted materials for bioanalytical assays and sensors.
  • MIPs present a viable alternative to biological antibodies in analytical assays, addressing demands in disease diagnosis, food safety, and environmental monitoring.

Purpose of the Study:

  • To review recent progress in the use of hydrogel MIP NPs for biosensing applications over the past decade.
  • To focus on the incorporation of hydrogel MIP NPs into sensing devices for the detection of peptides and proteins.
  • To highlight the potential of MIP NPs as antibody alternatives in various sensing fields.

Main Methods:

  • Discussion of advantages of nanosized MIPs (nanoMIPs) over larger counterparts, including enhanced affinity and binding kinetics.
  • Overview of hydrogel properties and their benefits for sensor applications.
  • Description of synthesis routes for imprinted hydrogel nanospheres, such as precipitation polymerization and solid-phase synthesis, often combined with epitope imprinting for large biomolecules.

Main Results:

  • Nanosized MIPs demonstrate superior performance in terms of target analyte affinity and binding kinetics compared to micro/macro-MIPs.
  • Hydrogel MIP NPs have been successfully integrated into various sensor formats (optical, electrochemical, thermal) for detecting peptides and proteins.
  • Applications span single-use, reusable, continuous monitoring, and multiplexed detection systems for both laboratory and in situ use.

Conclusions:

  • Hydrogel MIP NPs represent a significant advancement in biosensing technology for peptide and protein detection.
  • The review underscores the versatility and potential of MIP NPs in diverse analytical and diagnostic applications.
  • Future development is expected to further expand the capabilities and applications of this technology.