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Reference type: Journal
Authors: Chronakis IS, Jakob A, Hagstrom B, Ye L
Article Title: Encapsulation and Selective Recognition of Molecularly Imprinted Theophylline and 17b-Estradiol Nanoparticles within Electrospun Polymer Nanofibers.
Publication date: 2006
Journal: Langmuir
Volume: 22
Issue: (21)
Page numbers: 8960-8965.
DOI: 10.1021/la0613880

Abstract: Molecularly imprinted nanoparticles are cross-linked polymer colloids containing tailor-made molecular recognition sites. In this study, molecularly imprinted nanoparticles were easily encapsulated within polymer nanofibers using an electrospinning technique to produce a new type of molecular recognition material. Poly(ethylene terephthalate) (PET) was used as the supporting nanofibers matrix to encapsulate theophylline and 17β-estradiol imprinted nanoparticles. The composite nanofibers had an average diameter of 150-300 nm, depending on the content of molecularly imprinted nanoparticles. For the theophylline and 17β-estradiol imprinted polymers, an optimal loading of molecularly imprinted nanoparticles was 25-37.5 wt % based on PET. The composite nanofibers prepared under these conditions had a well-defined morphology and displayed the best selective target recognition. Our approach of electrospinning-for-molecularly imprinted nanoparticles-encapsulation has unique advantages and opens new application opportunities for molecularly imprinted nanoparticles and electrospun nanofibers.
Template and target information: theophylline, 17β-estradiol


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