نتایج جستجو برای: β cyclodextrin

تعداد نتایج: 181730  

Journal: :Chemical synthesis 2022

A novel supramolecular self-assembly nanostructure of porous helical nanoribbons (PHNRs) was developed. PHNRs from oligoaniline derivatives were fabricated through the chemical oxidation aniline in an i-propanol/water mixture as mediated by β-cyclodextrin (β-CD). The role β-CD considered vital modulation addition time point and molar ratio β-CD/aniline. In addition, at early stage polymerizatio...

2011
Michael Zengerle Florian Brandhuber Christian Schneider Franz Worek Georg Reiter Stefan Kubik

The potential of appropriately substituted cyclodextrins to act as scavengers for neurotoxic organophosphonates under physiological conditions was evaluated. To this end, a series of derivatives containing substituents with an aldoxime or a ketoxime moiety along the narrow opening of the β-cyclodextrin cavity was synthesized, and the ability of these compounds to reduce the inhibitory effect of...

Journal: :Chemical communications 2011
Changmin Yu Ming Luo Fang Zeng Fangyuan Zheng Shuizhu Wu

A mesoporous silica nanoparticle (MSN) based fluorescent sensor for dopamine was constructed with probes inside particle pores and β-cyclodextrin (β-CD) molecules on the particle surface as the selective barricade. The synergistic action of both the hydrophilic rim and hydrophobic cavity of β-CD ensures that the sensor can distinguish dopamine from other biological competitors.

Journal: :Clean Technologies and Environmental Policy 2022

Abstract Micropollutants are persistent and hazardous materials in low concentrations (ng L −1 –μg ), including substances such as pharmaceuticals, personal care products industrial chemicals. The advancement of analytical chemistry has allowed for the detection micropollutants; however, an efficient economical treatment solution is yet to be installed. Fungal laccase been a successful biocatal...

Journal: :caspian journal of chemistry 0
heshmatollah alinezhad faculty of chemistry, mazandaran university, babolsar, iran asefeh hagh haghighi faculty of chemistry, mazandaran university, babolsar, iran

β-cyclodextrin sulfuric acid as a green lewis acid catalyst has been applied for the preparation of bis(indolyl)methanes, tris(indolyl)methanes and 3,3'-diindolyloxindole derivatives by the condensation of indoles with various carbonyl compounds in aqueous media with high to excellent yields.

Journal: :Chemical communications 2015
Ying Zhou Dongsheng Wang Shilin Huang Günter Auernhammer Yujian He Hans-Jürgen Butt Si Wu

Reversible assembly of Janus particles was manipulated by host-guest interaction of β-cyclodextrin (β-CD) and azobenzene. One side of every Janus particle was modified with β-CD. Superstructures of Janus particles were formed by adding azobenzene-containing polymers to the dispersion of Janus particles. The superstructures were reversibly disassembled by adding α-CD or light irradiation.

Journal: :Chemical communications 2013
Limin Chen Xia Zhao Yuan Lin Yubin Huang Qian Wang

Using a one-pot approach driven by the supramolecular interaction between β-cyclodextrin and adamantyl moieties, multifunctional viral nanoparticles can be facilely formulated for biomedical applications.

2012
Wenting Liang Cheng Yang Masaki Nishijima Gaku Fukuhara Tadashi Mori Andrea Mele Franca Castiglione Fabrizio Caldera Francesco Trotta Yoshihisa Inoue

Enantiodifferentiating geometrical photoisomerizations of (Z)-cyclooctene and (Z,Z)-1,3-cyclooctadiene were performed by using the pyromellitate-linked cyclodextrin network polymer, termed "cyclodextrin nanosponge (CDNS)", as a supramolecular sensitizing host. The photochirogenic behavior of the nanosponges incorporating β- or γ-cyclodextrin was significantly different from that reported for th...

Journal: :Journal of agricultural and food chemistry 2018
Asli Celebioglu Zehra Irem Yildiz Tamer Uyar

In this study, inclusion complexes (IC) of three cyclodextrin derivatives (HP-β-CD, HP-γ-CD, and M-β-CD) with eugenol (essential oil compound) were formed in highly concentrated aqueous solutions and then transformed into self-standing functional nanofibrous webs by electrospinning. The improved aqueous solubility of eugenol was confirmed by phase solubility diagrams, in addition, the phase sol...

Journal: :The Analyst 2016
Ewelina Wajs Núria Fernández Alex Fragoso

The self-assembly of an adamantane-appended polymer bearing an antigen fragment on a polypyrrole-cyclodextrin modified surface provides a highly sensitive immunosensor with low limits of detection for celiac disease related targets. The pyrrole-carboxylic acid films were formed on the surface of gold electrodes by electropolymerisation and followed by covalent attachment of cyclodextrin units. ...

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