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Elasticizing tissues for reversible shape transformation and accelerated molecular labeling.

Taeyun Ku1,2,3, Webster Guan4, Nicholas B Evans1,2

  • 1Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA.

Nature Methods
|May 20, 2020
PubMed
Summary

We created a new technology called entangled link-augmented stretchable tissue-hydrogel (ELAST) to make tissues more accessible for molecular analysis. This method improves tissue stability and allows for faster probe delivery, aiding in large-scale biological studies.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Molecular Biology

Background:

  • Enhancing macromolecular accessibility and mechanical stability in tissues is crucial for advanced biological studies.
  • Existing methods often face limitations in preserving tissue integrity during analysis.

Purpose of the Study:

  • To introduce entangled link-augmented stretchable tissue-hydrogel (ELAST) technology.
  • To improve both macromolecular accessibility and mechanical stability of tissues simultaneously.
  • To enable rapid and scalable molecular phenotyping of biological systems.

Main Methods:

  • Development of the ELAST technology, transforming tissues into elastic hydrogels.
  • Utilizing mechanical thinning for faster probe delivery into intact tissue specimens.
  • Demonstrating reversible shape transformation through high stretchability and compressibility.

Main Results:

  • ELASTicized tissues exhibit enhanced stretchability and compressibility.
  • The technology allows for reversible shape transformation of tissue specimens.
  • Faster delivery of probes into intact tissues is achieved via mechanical thinning.

Conclusions:

  • ELAST is a universal platform for tissue transformation into elastic hydrogels.
  • This technology enhances macromolecular accessibility and mechanical stability.
  • ELAST facilitates rapid, scalable molecular phenotyping of large biological systems, including human organs.