Pending templates imprinted polymers-hypothesis, synthesis, adsorption, and chromatographic properties

Area of Science:

• Polymer Chemistry
• Analytical Chemistry
• Biochemistry

Background:

• Molecular imprinting typically uses purified proteins as templates.
• Complex biological samples pose challenges for selective separation and analysis.
• A novel approach is needed to imprint polymers using real-world sample matrices.

Purpose of the Study:

• To introduce and validate the concept of "pending template imprinting" using a complex biological sample.
• To demonstrate the ability of these imprinted polymers to selectively recognize and bind abundant components from the original sample.
• To explore the application of pending template imprinted polymers in sample fractionation and simplification.

Main Methods:

• Synthesis of protein-imprinted polymers (PIPs) using chicken egg white as the template source.
• Preparation of nonimprinted control polymers under identical conditions.
• Evaluation of adsorption capacity of both polymers towards components in the original sample.
• Application of imprinted polymer columns in chromatography for separation experiments.

Main Results:

• Polymers imprinted with chicken egg white exhibited significantly higher adsorption capacity for abundant sample components compared to control polymers.
• Chromatographic columns packed with imprinted polymers successfully retained the target imprinted species.
• The imprinted polymer columns effectively separated the retained abundant components from other non-imprinted species in the sample.
• The method allowed for the fractionation of the complex sample into simplified subfractions.

Conclusions:

• "Pending template imprinting" offers a novel strategy for creating selective polymers directly from complex samples.
• This technique enables the selective capture and separation of abundant molecules within their native matrix.
• Pending template imprinting provides a new avenue for dissecting, simplifying, and analyzing complex biological mixtures.