Near-Infrared Spectroscopic Investigation of Inclusion Complexes between Cyclodextrins and Aromatic Compounds

Politi, Mário José; Tran, Chieu D.; Gao, Guan-Hong

doi:10.1021/j100038a054

Cited by 23 publications

(31 citation statements)

References 8 publications

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“…Additionally, NIR absorption is known to be sensitive to intermolecular structure and interactions [6]. For example, we successfully used NIR technique to determine binding constants of inclusion complexes between various compounds with cyclodextrins in aqueous solutions as well as in room-temperature ionic liquids [7][8][9]. Transformation of a surfactant solution from pre-micelles to post-micelles should lead to changes in NIR absorption.…”

Section: Introductionmentioning

confidence: 99%

Near-infrared spectroscopic method for the sensitive and direct determination of aggregations of surfactants in various media

Tran

2005

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Near-infrared spectroscopic method for the sensitive and direct determination of aggregations of surfactants in various media

Tran

2005

Journal of Colloid and Interface Science

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“…Near-infrared (NIR) spectra were taken on a home-built NIR spectrometer (23, 24). FT-IR spectra were measured on a PerkinElmer 100 spectrometer.…”

Section: Methodsmentioning

confidence: 99%

Polysaccharide Ecocomposite Materials: Synthesis, Characterization and Application for Removal of Pollutants and Bacteria

2013

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A novel, simple and totally recyclable method has been developed for the synthesis of nontoxic, biocompatible and biodegradable composite materials from cellulose and chitosan. In this method, [BMIm+Cl−], an ionic liquid (IL), was used as a solvent to dissolve and synthesize the [CEL+CS] composite materials. Since the IL can be removed from the materials by washing them with water, and recovered from the washed solution, the method is totally recyclable. XRD, FTIR, NIR and SEM were used to characterize the materials and to confirm that CEL and CS were successfully regenerated by the method without any chemical transformation. More importantly, we have successfully demonstrated that [CEL+CS] material can serve as an effective adsorbent for removal of various endocrine disruptors including polychlorophenols and bisphenol A. This is because the composites have combined advantages of their components, namely superior chemical stability and mechanical stability (from CEL) and excellent adsorption capability for pollutants (from CS).

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“…The absorption spectra were measured on an AOTF-based near-IR spectrophotometer developed in our laboratory. 6,10…”

Section: B Instrumentationmentioning

confidence: 99%

Near-infrared thermal lens spectrometer based on an erbium-doped fiber amplifier and an acousto-optic tunable filter, and its application in the determination of nucleotides

Baptista

Tran

1997

Appl. Opt.

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A novel spectrometer that is based on the use of the thermal lens effect for sensitive measurements of absorption in the near-IR region has been developed. In this instrument the near-IR excitation light (from 1515 to 1590 nm) was provided by an erbium-doped fiber amplifier (EDFA). An acousto-optic tunable filter (AOTF) was used to spectrally disperse the light from the EDFA. The AOTF was used in a new configuration in which, instead of the diffracted light, the transmitted light was used. The heat generated as a consequence of the absorption of the near-IR excitation beam by the sample was monitored by a He-Ne laser. The sensitivity of this spectrometer was found to be at least two to three times higher than that of conventional transmission measurements. Its application in the sensitive determination of nucleotides (adenosine, cytidine, guanosine, and thymidine) is described.

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Near-Infrared Spectroscopic Investigation of Inclusion Complexes between Cyclodextrins and Aromatic Compounds

Cited by 23 publications

References 8 publications

Near-infrared spectroscopic method for the sensitive and direct determination of aggregations of surfactants in various media

Near-infrared spectroscopic method for the sensitive and direct determination of aggregations of surfactants in various media

Polysaccharide Ecocomposite Materials: Synthesis, Characterization and Application for Removal of Pollutants and Bacteria

Near-infrared thermal lens spectrometer based on an erbium-doped fiber amplifier and an acousto-optic tunable filter, and its application in the determination of nucleotides

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