Molecular imprinting of a cellulose/silica composite with caffeine and its characterization

Rajinder S. Gill; Manuel Marquez; Gustavo Larsen

doi:10.1016/j.micromeso.2005.06.003

Molecular imprinting of a cellulose/silica composite with caffeine and its characterization

Rajinder S. Gill, Manuel Marquez, Gustavo Larsen

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31 Scopus citations

Abstract

A molecularly imprinted "paper" (MIP) based on molecular imprinting of caffeine on cellulose/silica composites was successfully produced. Several techniques such as diffuse reflectance infrared spectroscopy (DRIFTS), transmission Fourier transform infrared (FTIR) spectroscopy using demountable path length cell, liquid-phase adsorption rate measurements, scanning electron microscopy, and BET specific surface area tests were used to characterize these MIP composites. These materials not only show enhanced binding capabilities towards the template molecules (caffeine) in comparison to blank experiments, but also were found to discriminate between theophylline and caffeine with relatively good selectivity. A cellulose:silica ratio of 4:2 was found to be close to optimal.

Original language	English (US)
Pages (from-to)	129-135
Number of pages	7
Journal	Microporous and Mesoporous Materials
Volume	85
Issue number	1-2
DOIs	https://doi.org/10.1016/j.micromeso.2005.06.003
State	Published - Oct 23 2005

Keywords

Cellulose
Cellulose/silica composite
Fiber
Filter
Silica

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics
Mechanics of Materials

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10.1016/j.micromeso.2005.06.003

Cite this

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title = "Molecular imprinting of a cellulose/silica composite with caffeine and its characterization",

abstract = "A molecularly imprinted {"}paper{"} (MIP) based on molecular imprinting of caffeine on cellulose/silica composites was successfully produced. Several techniques such as diffuse reflectance infrared spectroscopy (DRIFTS), transmission Fourier transform infrared (FTIR) spectroscopy using demountable path length cell, liquid-phase adsorption rate measurements, scanning electron microscopy, and BET specific surface area tests were used to characterize these MIP composites. These materials not only show enhanced binding capabilities towards the template molecules (caffeine) in comparison to blank experiments, but also were found to discriminate between theophylline and caffeine with relatively good selectivity. A cellulose:silica ratio of 4:2 was found to be close to optimal.",

keywords = "Cellulose, Cellulose/silica composite, Fiber, Filter, Silica",

author = "Gill, {Rajinder S.} and Manuel Marquez and Gustavo Larsen",

note = "Funding Information: We acknowledge the support from Kraft Foods R&D. ",

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T1 - Molecular imprinting of a cellulose/silica composite with caffeine and its characterization

AU - Gill, Rajinder S.

AU - Marquez, Manuel

AU - Larsen, Gustavo

N1 - Funding Information: We acknowledge the support from Kraft Foods R&D.

PY - 2005/10/23

Y1 - 2005/10/23

N2 - A molecularly imprinted "paper" (MIP) based on molecular imprinting of caffeine on cellulose/silica composites was successfully produced. Several techniques such as diffuse reflectance infrared spectroscopy (DRIFTS), transmission Fourier transform infrared (FTIR) spectroscopy using demountable path length cell, liquid-phase adsorption rate measurements, scanning electron microscopy, and BET specific surface area tests were used to characterize these MIP composites. These materials not only show enhanced binding capabilities towards the template molecules (caffeine) in comparison to blank experiments, but also were found to discriminate between theophylline and caffeine with relatively good selectivity. A cellulose:silica ratio of 4:2 was found to be close to optimal.

AB - A molecularly imprinted "paper" (MIP) based on molecular imprinting of caffeine on cellulose/silica composites was successfully produced. Several techniques such as diffuse reflectance infrared spectroscopy (DRIFTS), transmission Fourier transform infrared (FTIR) spectroscopy using demountable path length cell, liquid-phase adsorption rate measurements, scanning electron microscopy, and BET specific surface area tests were used to characterize these MIP composites. These materials not only show enhanced binding capabilities towards the template molecules (caffeine) in comparison to blank experiments, but also were found to discriminate between theophylline and caffeine with relatively good selectivity. A cellulose:silica ratio of 4:2 was found to be close to optimal.

KW - Cellulose

KW - Cellulose/silica composite

KW - Fiber

KW - Filter

KW - Silica

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JF - Microporous and Mesoporous Materials

IS - 1-2

ER -

Molecular imprinting of a cellulose/silica composite with caffeine and its characterization

Abstract

Keywords

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