Towards artificial antibodies prepared by molecular imprinting

Area of Science:

• Polymer Chemistry
• Analytical Chemistry
• Immunochemistry

Background:

• Molecular imprinting is a rapidly growing technique adopted globally.
• Artificial antibody-binding sites are needed for sensitive analytical assays.
• Existing methods may lack specificity or require complex procedures.

Purpose of the Study:

• To investigate molecular imprints as artificial antibody mimics.
• To evaluate their performance in competitive radioimmunoassay-style binding assays.
• To assess their utility for drug concentration determination in biological samples.

Main Methods:

• Utilizing molecular imprints with tailored recognition sites.
• Employing competitive radioimmunoassay-style binding assays.
• Testing polymers for binding constants and cross-reactivity against target antigens.
• Analyzing drug concentrations in human serum specimens.

Main Results:

• Molecular imprints effectively mimic natural antibody binding sites.
• High binding constants (as low as 4.0 nmol/L) were achieved for specific sites.
• Cross-reactivity was comparable or superior to biological antibodies.
• Successful determination of drug concentrations in human serum was demonstrated.

Conclusions:

• Molecular imprinting provides a viable alternative to natural antibodies in binding assays.
• These synthetic mimics offer high specificity and sensitivity for drug analysis.
• The technique shows promise for clinical diagnostics and therapeutic drug monitoring.