Infrared spectra of N-tert-butoxycarbonyl-amino acids at different temperatures

Bruyneel, C.; Zeegers‐Huyskens, Th.

doi:10.1016/s0022-2860(00)00481-6

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…The effect of temperature on monomer−template and polymer−template interactions is not straightforward. Lower temperatures should favor complexation due to a reduction in the influence of residual vibrational modes (Δ G vib ) and an increase in the strength of polar interactions (∑Δ G p ) (eq ). − At the same time lower temperatures may increase the adverse contributions of conformational (Δ G conf ) and van der Waals (Δ G vdW ) terms in eq .…”

Section: Temperaturementioning

confidence: 99%

Influence of the Polymerization Conditions on the Performance of Molecularly Imprinted Polymers

et al. 2009

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Although molecular imprinting in organic polymers was introduced by Wulff more than 30 years ago, 1 this promising technology has yet to realize its full commercial potential, partially due to the lack of a clear understanding of how physical factors affect the polymerization process and what basic rules should be applied in order to produce synthetic receptors with the required characteristics. This arises mainly from the complex nature of the polymerization reaction in cross-linked systems which depends on many interrelated factors. Among the most important physical factors affecting the polymerization process, as well as the recognition properties of the materials produced, are temperature, type of initiation, pressure, magnetic field, volume of the polymerization mixture, dielectric constants of monomers and solvent, and polymerization time. This paper was inspired by the urgent need to summarize the knowledge generated concerning how polymerization conditions affect the quality of molecularly imprinted polymers (MIPs) in order to help the imprinting community make rational and effective choices and maximize their chances for success.

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Section: Temperaturementioning

confidence: 99%

Influence of the Polymerization Conditions on the Performance of Molecularly Imprinted Polymers

et al. 2009

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“…Bocamino acids are often used as substrates, substrate analogues or competitive inhibitors of proteolytic enzymes. The study of their conformational preferences is also important for understanding their interactions with enzymes [16].…”

Section: Introductionmentioning

confidence: 99%

A novel compound of triphenyltin(IV) with N-tert-butoxycarbonyl-l-ornithine causes cancer cell death by inducing a p53-dependent activation of the mitochondrial pathway of apoptosis

Girasolo

Tesoriere

Casella

et al. 2017

Inorganica Chimica Acta

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The use of FTIR and NMR spectroscopies to study prepolymerisation interactions in nitrogen heterocycles

et al. 2008

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A detailed investigation into the functional groups responsible for the formation of a noncovalent complex between 2-aminopyridine (template) and methacrylic acid (functional monomer) has been carried out using FTIR spectroscopy and confirmed by (1)H NMR spectroscopic data. The approach adopted to confirm the mechanism of interaction was the analysis of the template plus the structurally similar 2-methylaminopyridine and 2-dimethylaminopyridine. A 1:1 stoichiometry of complexation was determined by Job plot analysis following titration, with FTIR results complementing those of the (1)H NMR study. The strength of interaction between 2-aminopyridine and the functional monomer measured through band shifts by FTIR spectroscopy was compared with such interactions for the isomers 3- and 4-aminopyridine. This comparison identified a clear correlation between template pK(a), degree of interaction and subsequent nonspecific binding in the nonimprinted polymer. Using FTIR spectroscopy it was also possible to observe the effect of temperature on the prepolymerisation solution. IR spectra showed that lower temperatures led to more stabilized interactions of the hydrogen-bonded complex. The potential advantages of FTIR spectroscopy compared with (1)H NMR spectroscopy in studying prepolymerisation solutions have been identified.

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Infrared spectra of N-tert-butoxycarbonyl-amino acids at different temperatures

Cited by 3 publications

References 14 publications

Influence of the Polymerization Conditions on the Performance of Molecularly Imprinted Polymers

Influence of the Polymerization Conditions on the Performance of Molecularly Imprinted Polymers

A novel compound of triphenyltin(IV) with N-tert-butoxycarbonyl-l-ornithine causes cancer cell death by inducing a p53-dependent activation of the mitochondrial pathway of apoptosis

The use of FTIR and NMR spectroscopies to study prepolymerisation interactions in nitrogen heterocycles

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