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Benzoic-Imine-Based Physiological-pH-Responsive Materials for Biomedical Applications.

Xiaozhong Qu1,2, Zhenzhong Yang3

  • 1State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. quxz@iccas.ac.cn.

Chemistry, an Asian Journal
|July 14, 2016
PubMed
Summary
This summary is machine-generated.

Benzoic imine bonds offer pH-responsive material design. These dynamic covalent bonds degrade at tumor and endosome pH, enabling targeted drug delivery and tissue engineering applications.

Keywords:
benzoic iminesbiomedical applicationsdrug deliverypolymersresponsive materials

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Chemical Biology

Background:

  • Benzoic imine bonds exhibit pH-dependent stability, hydrolyzing at acidic pH values found in tumors and intracellular compartments.
  • This pH sensitivity makes them suitable for constructing dynamic materials that respond to physiological conditions.
  • Applications are emerging in pharmaceutical delivery and tissue engineering.

Purpose of the Study:

  • To review recent advancements in designing and synthesizing pH-sensitive materials utilizing the benzoic imine bond.
  • To highlight the biomedical potential of these benzoic imine-based materials.
  • To discuss applications in drug delivery and tissue engineering.

Main Methods:

  • Focus review of literature on benzoic imine chemistry and its application in material science.
  • Synthesis strategies for incorporating benzoic imine bonds into polymers, nanoparticles, and hydrogels.
  • Analysis of material performance under varying pH conditions relevant to biological environments.

Main Results:

  • Benzoic imine bonds demonstrate tunable hydrolysis rates across a physiological pH range (4.5-7.4).
  • Successful incorporation into various material formats including polymeric micelles, nanoparticles, and hydrogels.
  • Demonstrated potential for controlled release of therapeutics and applications in regenerative medicine.

Conclusions:

  • Benzoic imine bonds are a versatile tool for creating sophisticated, pH-responsive biomaterials.
  • These materials hold significant promise for targeted drug delivery systems and advanced tissue engineering scaffolds.
  • Further research into benzoic imine-based materials will likely expand their biomedical impact.