β-Cyclodextrin and its derivatives-enhanced solubility and biodegradation of 2-nitrobiphenyl

Bang-cheng, Cai; Gao, Shixiang; Lu, Guo‐ping

doi:10.1016/s1001-0742(06)60055-7

Cited by 11 publications

(2 citation statements)

References 8 publications

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“…The solubility,6, 26 bioavailability,27 and other biological parameters (e.g., uptake, transfer, decomposition rate, etc. )28, 29 of the guest being modified by complexation will change, which consequently changes the biological efficacy of steroidal drugs in living organisms 28. The effect of the inclusion depth of CDs with regard to complexation was emphasized by Kamiya and Nakamura,30 who reported that the inclusion depth parameters were in a characteristic relationship with the CD effect indexes for pesticide photolysis.…”

Section: Resultsmentioning

confidence: 99%

Enantioselective toxicity of metolachlor to scenedesmus obliquus in the presence of cyclodextrins

Liu¹,

Cai²,

Huang³

et al. 2011

Chirality

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Cyclodextrins (CDs) possess a variety of chiral centers and are capable of recognizing enantiomeric molecules through the formation of inclusion complexes. Two types of CDs, α-cyclodextrin (α-CD) and β-cyclodextrin (β-CD), were selected to evaluate the effects of the enantioselective ecotoxicity of racemic metolachlor (Rac-metolachlor) and its S-enantiomer (S-metolachlor) on the freshwater algae Scenedesmus obliquus (S. obliquus) by acute toxicity test. The results showed that the aquatic toxicity of S-metolachlor was higher than Rac-metolachlor and that CDs enhanced the toxicity of metolachlor enantioselectively by increasing the aquatic toxicity of Rac-metolachlor rather than that of S-metolachlor to S. obliquus. The equilibrium constant for Rac-metolachlor-CD complexes was higher than that of S-metolachlor-CDs, which was responsible for the greater aquatic toxicity shift effect of Rac-metolachlor. Thermodynamic studies of CD complexes showed that inclusion for all of the complexes was primarily a spontaneous, enthalpy-driven process. These results will help to understand the preliminary mechanism of shifting aquatic toxicity of metolachlor by CDs and the CDs mediated environmental processes of metolachlor, to correctly apply CDs to chiral pesticides formulation and environmental remediation of chiral contaminants.

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Section: Resultsmentioning

confidence: 99%

Enantioselective toxicity of metolachlor to scenedesmus obliquus in the presence of cyclodextrins

Liu¹,

Cai²,

Huang³

et al. 2011

Chirality

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“…In addition, charged groups such as SBE‐, methylamino‐, sulfated‐, carboxymethylated‐, and phosphated‐ can also be used to modify CDs [100]. In this context, HP‐ and CM‐CD are the most common β‐CD derivatives used for chiral separation because of their higher water solubility and enhanced selective interaction with enantiomers molecules [101]. However, it should be mentioned that most of the procedures for CDs modification consist of several steps employing protecting agents from avoiding uncontrolled reactions in the reactive –OH groups, thus generating a large amount of chemical waste.…”

Section: Electrophoretic Methods For Enantioseparationmentioning

confidence: 99%

From capillaries to microchips, green electrophoretic features for enantiomeric separations: A decade review (2013–2022)

Aredes,

Lima,

Faillace

et al. 2023

Electrophoresis

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Enantioseparation by the electromigration‐based method is well‐established and widely discussed in the literature. Electrophoretic strategies have been used to baseline resolve complex enantiomeric mixtures, typically using a selector substance into the background electrolyte (BGE) from capillaries to microchips. Along with developing new materials/substances for enantioseparations, it is the concern about the green analytical chemistry (GAC) principles for method development and application. This review article brings a last decade's update on the publications involving enantioseparation by electrophoresis for capillary and microchip systems. It also brings a critical discussion on GAC principles and new green metrics in the context of developing an enantioseparation method. Chemical and green features of native and modified cyclodextrins are discussed. Still, given the employment of greener substances, ionic liquids and deep‐eutectic solvents are highlighted, and some new selectors are proposed. For all the mentioned selectors, green features about their production, application, and disposal are considered. Sample preparation and BGE composition in GAC perspective, as well as greener derivatization possibilities, were also addressed. Therefore, one of the goals of this review is to aid the electrophoretic researchers to look where they have not.

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Cyclodextrins and Biotechnological Applications

Singh

Kaler

Patil

et al. 2011

Cyclodextrins in Pharmaceutics, Cosmetics, and Biomedicine

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β-Cyclodextrin and its derivatives-enhanced solubility and biodegradation of 2-nitrobiphenyl

Cited by 11 publications

References 8 publications

Enantioselective toxicity of metolachlor to scenedesmus obliquus in the presence of cyclodextrins

Enantioselective toxicity of metolachlor to scenedesmus obliquus in the presence of cyclodextrins

From capillaries to microchips, green electrophoretic features for enantiomeric separations: A decade review (2013–2022)

Cyclodextrins and Biotechnological Applications

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