An acoustic study of the selective absorption of vapors by microporous polymer films

Losev, V. V.; Medved, A. V.; Рощин, А. В.; Kryshtal, R. G.; Zapadinskii, B. I.; Epinat’ev, I. D.; Kumpanenko, I. V.

doi:10.1134/s1990793109060219

Cited by 5 publications

(3 citation statements)

References 32 publications

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“…Detailed theoretical studies of gas adsorption by imprinted polymers are also rare [ 98 ]. It is difficult to determine general models of MIP gas sensors due to the chemical and macroscopic variation between polymers, in addition to dependence on targets and environmental conditions [ 183 ].…”

Section: Molecular Imprinting Of Volatile Moleculesmentioning

confidence: 99%

Template Imprinting Versus Porogen Imprinting of Small Molecules: A Review of Molecularly Imprinted Polymers in Gas Sensing

Cowen

Cheffena

2022

IJMS

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The selective sensing of gaseous target molecules is a challenge to analytical chemistry. Selectivity may be achieved in liquids by several different methods, but many of these are not suitable for gas-phase analysis. In this review, we will focus on molecular imprinting and its application in selective binding of volatile organic compounds and atmospheric pollutants in the gas phase. The vast majority of indexed publications describing molecularly imprinted polymers for gas sensors and vapour monitors have been analysed and categorised. Specific attention was then given to sensitivity, selectivity, and the challenges of imprinting these small volatile compounds. A distinction was made between porogen (solvent) imprinting and template imprinting for the discussion of different synthetic techniques, and the suitability of each to different applications. We conclude that porogen imprinting, synthesis in an excess of template, has great potential in gas capture technology and possibly in tandem with more typical template imprinting, but that the latter generally remains preferable for selective and sensitive detection of gaseous molecules. More generally, it is concluded that gas-phase applications of MIPs are an established science, capable of great selectivity and parts-per-trillion sensitivity. Improvements in the fields are likely to emerge by deviating from standards developed for MIP in liquids, but original methodologies generating exceptional results are already present in the literature.

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Section: Molecular Imprinting Of Volatile Moleculesmentioning

confidence: 99%

Template Imprinting Versus Porogen Imprinting of Small Molecules: A Review of Molecularly Imprinted Polymers in Gas Sensing

Cowen

Cheffena

2022

IJMS

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“…However, use of MIPs for sensing purposes generally demands a MIP-based material in the form of a uniform thin film and its robust interfacing with a sensor platform capable of responding to relevant sensitivity levels upon interaction between MIP film and a binding analyte. In addition, the use of label-free sensing platforms for integration with MIPs can provide direct information on binding events on MIP surfaces and have increasingly been utilized in many laboratories to study the specific recognition ability and selectivity of MIPs. − Surface plasmon resonance (SPR) and quartz crystal microbalance (QCM) are the most popular label-free techniques employed for MIP study while the application of a surface acoustic wave (SAW) sensing platform has not been widespread and limited to the detection of gas and vapor. , Meanwhile, SAW systems utilizing Love-waves sensors that are capable of operating in a liquid environment might provide advances in the study of MIP materials as well as fabrication of MIP-based sensors. SAW systems share a similar principle of operation with other piezogravimetric devices, e.g.…”

mentioning

confidence: 99%

“…17−19 Surface plasmon resonance (SPR) and quartz crystal microbalance (QCM) are the most popular label-free techniques employed for MIP study while the application of a surface acoustic wave (SAW) sensing platform has not been widespread and limited to the detection of gas and vapor. 20,21 Meanwhile, SAW systems utilizing Love-waves sensors that are capable of operating in a liquid environment 22 might provide advances in the study of MIP materials as well as fabrication of MIP-based sensors. SAW systems share a similar principle of operation with other piezogravimetric devices, e.g.…”

mentioning

confidence: 99%

Molecularly Imprinted Polymer Integrated with a Surface Acoustic Wave Technique for Detection of Sulfamethizole

et al. 2016

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The synergistic effect of combining molecular imprinting and surface acoustic wave (SAW) technologies for the selective and label-free detection of sulfamethizole as a model antibiotic in aqueous environment was demonstrated. A molecularly imprinted polymer (MIP) for sulfamethizole (SMZ) selective recognition was prepared in the form of a homogeneous thin film on the sensing surfaces of SAW chip by oxidative electropolymerization of m-phenylenediamine (mPD) in the presence of SMZ, acting as a template. Special attention was paid to the rational selection of the functional monomer using computational and spectroscopic approaches. SMZ template incorporation and its subsequent release from the polymer was supported by IR microscopic measurements. Precise control of the thicknesses of the SMZ-MIP and respective nonimprinted reference films (NIP) was achieved by correlating the electrical charge dosage during electrodeposition with spectroscopic ellipsometry measurements in order to ensure accurate interpretation of label-free responses originating from the MIP modified sensor. The fabricated SMZ-MIP films were characterized in terms of their binding affinity and selectivity toward the target by analyzing the binding kinetics recorded using the SAW system. The SMZ-MIPs had SMZ binding capacity approximately more than eight times higher than the respective NIP and were able to discriminate among structurally similar molecules, i.e., sulfanilamide and sulfadimethoxine. The presented approach for the facile integration of a sulfonamide antibiotic-sensing layer with SAW technology allowed observing the real-time binding events of the target molecule at nanomolar concentration levels and could be potentially suitable for cost-effective fabrication of a multianalyte chemosensor for analysis of hazardous pollutants in an aqueous environment.

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Molecular imprinting science and technology: a survey of the literature for the years 2004-2011

2014

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SummaryHerein we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004 to 2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004 which were omitted in the first instalment of this series covering the years 1930 to 2003. 1 In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.2

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An acoustic study of the selective absorption of vapors by microporous polymer films

Cited by 5 publications

References 32 publications

Template Imprinting Versus Porogen Imprinting of Small Molecules: A Review of Molecularly Imprinted Polymers in Gas Sensing

Template Imprinting Versus Porogen Imprinting of Small Molecules: A Review of Molecularly Imprinted Polymers in Gas Sensing

Molecularly Imprinted Polymer Integrated with a Surface Acoustic Wave Technique for Detection of Sulfamethizole

Molecular imprinting science and technology: a survey of the literature for the years 2004-2011

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