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Molecularly Imprinted Nanoparticles (NanoMIPs) Selective for Proteins: Optimization of a Protocol for Solid-Phase
César Cáceres1, Ewa Moczko2,3, Itsaso Basozabal3
1Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, 4070371 Concepción, Chile.
Polymers
|January 27, 2021
Summary
This study presents an automated method for creating molecularly imprinted polymer nanoparticles (nanoMIPs) that are highly specific for proteins. This advancement offers a stable and cost-effective alternative to antibodies for various applications.
Area of Science:
- Biotechnology
- Materials Science
- Analytical Chemistry
Background:
- Molecularly imprinted polymer nanoparticles (nanoMIPs) are synthetic receptors with high selectivity.
- nanoMIPs offer a stable, cost-effective alternative to antibodies in diagnostics and separations.
- Protein imprinting is challenging due to protein fragility and complex binding sites.
Purpose of the Study:
- To optimize and automate the synthesis of protein-specific nanoMIPs.
- To develop a robust protocol for producing high-affinity nanoMIPs for protein targets.
- To demonstrate the utility of automated synthesis for reproducible nanoMIP production.
Main Methods:
- Utilized an automated solid-phase synthesizer for nanoMIP production.
- Employed a covalently immobilized protein template under mild conditions.
- Validated the protocol through solid-phase regeneration, affinity, and specificity measurements.
- Used trypsin as a model protein, monitoring its activity via a colorimetric assay.
Main Results:
- Successfully modified and optimized a protocol for automated nanoMIP synthesis targeting proteins.
- Demonstrated the ability to produce nanoMIPs with high affinity and specificity for the model protein.
- Showcased the advantages of automated synthesis for controlled, reproducible nanoMIP production.
- Identified protocols to enhance the yield of high-affinity nanoparticles.
Conclusions:
- Automated synthesis provides a simple, fast, and controlled method for producing protein-specific nanoMIPs.
- The developed protocol is suitable for creating robust synthetic receptors for fragile biomolecules.
- Optimized nanoMIPs show promise as alternatives to antibodies in various applications.
