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Dynamic assembly of molecularly imprinted polymer nanoparticles
Haiyue Gong1, Solmaz Hajizadeh1, Lingdong Jiang1
1Division of Pure and Applied Biochemistry, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden.
Journal of Colloid and Interface Science
|September 20, 2017
Summary
Researchers created novel molecularly imprinted polymer nanoparticles with controllable dynamic assembly. These functionalized nanoparticles offer tunable binding and aggregation for reusable applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Molecularly imprinted polymers (MIPs) are crucial for specific molecular recognition and material recycling.
- Controlling the assembly and recycling of MIPs is vital for their practical implementation.
Purpose of the Study:
- To develop a novel method for controlling the dynamic assembly of MIP nanoparticles via surface functionalization.
- To create MIP nanoparticles with a core-shell structure enabling independent modulation of molecular binding and particle aggregation.
Main Methods:
- Synthesized core-shell MIP nanoparticles using precipitation polymerization.
- Introduced epoxide groups in the shell for immobilizing phenylboronic acids and cis-diol structures.
- Investigated pH and chemical stimuli-responsive dynamic particle aggregation.
Main Results:
- Achieved well-controlled core-shell MIP nanoparticles with specific binding sites in the core.
- Successfully functionalized the nanoparticle shell with boronic acid and cis-diol moieties.
- Demonstrated that the functionalized MIP nanoparticles exhibit high molecular binding specificity.
- Induced dynamic particle aggregation in response to pH variations and chemical stimuli.
Conclusions:
- Developed a versatile approach for creating functionalized MIP nanoparticles with tunable properties.
- The independent control over molecular binding and nanoparticle assembly opens avenues for reusable nanomaterials.
- This strategy is promising for applications requiring repeated use of valuable nanoparticles.
