| Autor: |
Kalidindi, Subhash, Yi, Hyunmin |
| Zdroj: |
ACS Applied EngineeringMaterials; 20230101, Issue: Preprints |
| Abstrakt: |
Polymeric opal microparticles are an important class of emerging engineering materials and have shown significant potential in a variety of applications ranging from anticounterfeit labels and sensors to drug delivery systems. Despite several existing techniques, there is a critical need for a simple, reliable, and robust fabrication method of responsive opal microparticles. We report a simple soft-lithographic micromolding technique utilizing evaporative deposition and neutralization to manufacture uniform and tunable opal microparticles containing the potent aminopolysaccharide chitosan (CS). CS plays a crucial role in the formation of stable opal structures and polymer networks as well as chemical reactivity and stimuli-responsive properties that enable multiple functionalities and controlled electroassembly in a spatially selective manner. Finally, uniform and stable CS-inverse opal microparticles were successfully prepared by simple exposure to toluene. We envision that our facile evaporation–neutralization technique harnessing the unique properties of CS can be readily extended to develop various engineering materials for a wide range of applications. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
