Journal ArticleDOI
Molecular imprinting at walls of silica nanotubes for TNT recognition.
TLDR
The silica nanotube reported herein is an ideal form of material for imprinting various organic or biological molecules toward applications in chemical/biological sensors and bioassay.Abstract:
This paper reports the molecular imprinting at the walls of highly uniform silica nanotubes for the recognition of 2,4,6-trinitrotoluene (TNT). It has been demonstrated that TNT templates were efficiently imprinted into the matrix of silica through the strong acid−base pairing interaction between TNT and 3-aminopropyltriethoxysilane (APTS). TNT-imprinted silica nanotubes were synthesized by the gelation reaction between APTS and tetraethylorthosilicate (TEOS), selectively occurring at the porous walls of APTS-modified alumina membranes. The removal of the original TNT templates leaves the imprinted cavities with covalently anchored amine groups at the cavity walls. A high density of recognition sites with molecular selectivity to the TNT analyte was created at the wall of silica nanotubes. Furthermore, most of these recognition sites are situated at the inside and outside surfaces of tubular walls and in the proximity of the two surfaces due to the ultrathin wall thickness of only 15 nm, providing a bette...read more
Citations
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Journal ArticleDOI
Molecular imprinting: perspectives and applications
TL;DR: This work proposes to comprehensively review the recent advances in molecular imprinting including versatile perspectives and applications, concerning novel preparation technologies and strategies of MIT, and highlight the applications of MIPs.
Journal ArticleDOI
Recent advances in molecular imprinting technology: current status, challenges and highlighted applications
TL;DR: This critical review briefly reviews the current status of MIT, particular emphasis on significant progresses of novel imprinting methods, some challenges and effective strategies for MIT, and highlighted applications of MIPs.
Journal ArticleDOI
Molecular imprinting science and technology: a survey of the literature for the years 2004-2011.
TL;DR: A survey of the literature covering the development of molecular imprinting science and technology over the years 2004–2011 and efforts to apply these polymeric materials to a range of application areas is presented.
Journal ArticleDOI
Supersensitive Detection of Explosives by Silicon Nanowire Arrays
TL;DR: There has been a great increase in the development of trace and ultra-trace explosive detection in the last decade, mainly because of the globalization of terrorist acts, and thereclamation of contaminated land previously used for military purposes as mentioned in this paper.
Journal ArticleDOI
A molecularly imprinted polymer-coated nanocomposite of magnetic nanoparticles for estrone recognition.
TL;DR: Fe(3)O(4) magnetic nanoparticles coated estrone-imprinted polymer with controlled size using a semi-covalent imprinting strategy exhibit a much higher specific recognition and saturation magnetization than previously synthesized.
References
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Journal ArticleDOI
Molecular Imprinting in Cross‐Linked Materials with the Aid of Molecular Templates— A Way towards Artificial Antibodies
TL;DR: In this article, the authors present a method analogous to a mechanism of antibody formation proposed earlier, by which in the presence of interacting monomers a cross-linked polymer is formed around a molecule that acts as a template.
Journal ArticleDOI
Molecularly imprinted polymers and their use in biomimetic sensors.
Karsten Haupt,Klaus Mosbach +1 more
Journal ArticleDOI
Highly ordered nanochannel-array architecture in anodic alumina
TL;DR: In this paper, a long-range ordered channel array with dimensions on the order of millimeters with a channel density of 1010 cm−2 was obtained, and the aspect ratio was over 150.
Journal ArticleDOI
Polymer sensors for nitroaromatic explosives detection
Sarah J. Toal,William C. Trogler +1 more
TL;DR: Several polymers have been used to detect nitroaromatic explosives by a variety of transduction schemes as mentioned in this paper, which relies on both electronic and structural interactions between the sensing material and the analyte.
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