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Adding Biomolecular Recognition Capability to 3D Printed Objects.

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Analytical Chemistry
|October 12, 2016
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Summary
This summary is machine-generated.

Three-dimensional (3D) printing using digital light processing (DLP) enables novel hydrogel biosensor layers. This technology allows for complex 3D shapes and multiplexed sensing capabilities previously unattainable.

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Analytical Chemistry

Background:

  • Conventional biosensor fabrication methods limit the complexity and organization of sensing layers.
  • Three-dimensional (3D) printing offers potential for advanced biosensor architectures.

Purpose of the Study:

  • To demonstrate the capability of digital light processing (DLP) 3D printing for creating complex hydrogel sensing layers.
  • To explore the fabrication of intricate 3D sensing elements for biosensing applications.

Main Methods:

  • Utilized DLP 3D printing to fabricate hydrogel-based sensing layers with complex geometries.
  • Developed two models: an enzymatic assay for glucose detection and a sandwich immunoassay for brain natriuretic peptide detection.

Main Results:

  • Successfully printed highly complex 3D objects with mono-, di-, and tricomponent configurations, including propellers and puzzle pieces.
  • Demonstrated the enzymatic activity of entrapped glucose oxidase and peroxidase within the 3D printed hydrogels.
  • Validated the antibody recognition capabilities in 3D printed immunoassay sensing layers for brain natriuretic peptide detection.

Conclusions:

  • DLP 3D printing is a viable technique for producing complex, functional hydrogel biosensor layers.
  • This technology opens new avenues for developing customizable and multiplexed sensing systems through modular assembly.