Molecular imprinted electrospun chromogenic membrane for l-tyrosine specific recognition and visualized detection

Area of Science:

• Materials Science
• Analytical Chemistry
• Biochemistry

Background:

• Developing selective and sensitive methods for amino acid detection is crucial in biochemical analysis.
• Molecular imprinting offers a powerful approach for creating recognition materials with high specificity.
• Visual detection methods are desirable for rapid and cost-effective analysis.

Purpose of the Study:

• To synthesize a molecularly imprinted electrospun chromogenic membrane (MIP-ECM) for selective recognition of l-tyrosine (Tyr).
• To evaluate the selectivity and adsorption capacity of the MIP-ECM for Tyr.
• To investigate the influence of environmental factors on the chromogenic properties for optimized detection.

Main Methods:

• Synthesis of MIP-ECM using P-Hydroxybenzene propanoic acid as template and Poly (vinyl alcohol) (PVA) as substrate.
• Utilizing ninhydrin as a chromogenic agent for visual detection of l-tyrosine.
• Characterization using Scanning Electron Microscopy (SEM) and optical microscopy; quantitative analysis via Image J software for gray value analysis.

Main Results:

• The synthesized MIP-ECM demonstrated high selectivity and specific adsorption capacity for l-tyrosine.
• Environmental factors like temperature, ninhydrin concentration, and elution time were optimized.
• Visual detection of l-tyrosine was achieved through a colorimetric response.

Conclusions:

• The developed MIP-ECM provides a promising platform for the selective recognition and visual detection of l-tyrosine.
• The method is facile in preparation and offers intuitive visualization, suitable for detecting bio-generated amino acids.
• This approach holds potential for applications in biochemical analysis and diagnostics.