PubAg

Main content area

You searched for: Subject "cyclodextrins" Remove constraint Subject: "cyclodextrins"
Start Over

Search

4,050  Search Results

« Previous | 1 - 20 of 4,050 |
Number of results to display per page

Search Results

1. Brilliant red X-3B uptake by a novel polycyclodextrin-modified magnetic cationic hydrogel: Performance, kinetics and mechanism

Author:
Li, Junyi; Wang, Yili; Dou, Xiaomin; Hao, Haotian; Dong, Shuoxun; Shao, Xia; Deng, Yanchun
Source:
Journal of environmental sciences (China) 2020 v.89 pp. 264-276
ISSN:
1001-0742
Subject:
cyclodextrins,   etc   ; adsorption; diffusivity; dyes; electrostatic interactions; hydrogels; hydrogen bonding; liquids; magnetism; mass transfer; models; pH; zeta potential;     Show all 13 Subjects
Abstract:
... A novel polycyclodextrin-modified magnetic cationic hydrogel (PCD-MCH) was developed and its performance, kinetics and mechanism for the removal of reactive brilliant red X-3B (X-3B) were studied. The results showed that the zeta-potential of PCD-MCH was 32.8 to 16.7mV at pH3.0–10.5. The maximum X-3B adsorption capacity of PCD-MCH was 2792.3mg/g. The adsorption kinetics could be well-described by ...
DOI:
10.1016/j.jes.2019.09.008

2. Pickering emulsions with enhanced storage stabilities by using hybrid β-cyclodextrin/short linear glucan nanoparticles as stabilizers

Author:
Hu, Yao; Qiu, Chao; Jin, Zhengyu; Qin, Yang; Zhan, Chen; Xu, Xueming; Wang, Jinpeng
Source:
Carbohydrate polymers 2020 v.229 pp. 115418
ISSN:
0144-8617
Subject:
beta-cyclodextrin,   etc   ; adsorption; contact angle; emulsifying; emulsions; nanoparticles; oil-water interface; oils; pharmaceutical industry; stabilizers; thermal stability; zeta potential;     Show all 12 Subjects
Abstract:
... Stable Pickering emulsions were prepared by using hybrid β-cyclodextrin/short linear glucan nanoparticles (β-CD/SLG NPs). The β-CD/SLG NPs displayed spherical shape and with an average size at around 60 nm. Newly formed SLG-β-CD structure in the nanoparticles was thought the main reason for the improved thermal stability, alleviated aggregation, and improved dispersity in aqueous systems. Dependin ...
DOI:
10.1016/j.carbpol.2019.115418

3. Active cardboard box with a coating including essential oils entrapped within cyclodextrins and/or halloysite nanotubes. A case study for fresh tomato storage

Author:
Buendía−Moreno, Laura; Sánchez−Martínez, María José; Antolinos, Vera; Ros−Chumillas, María; Navarro−Segura, Laura; Soto−Jover, Sonia; Martínez−Hernández, Ginés Benito; López−Gómez, Antonio
Source:
Food control 2020 v.107 pp. 106763
ISSN:
0956-7135
Subject:
beta-cyclodextrin,   etc   ; active food packaging; cardboard; case studies; coatings; color; commercialization; emulsions; essential oils; firmness; halloysite; microbiological quality; nanocapsules; nanotubes; postharvest losses; storage time; tomatoes;     Show all 17 Subjects
Abstract:
... Different antimicrobial active packaging treatments were studied on the fresh tomato quality after 6 days/8 °C (short transport simulation) followed by 5 days/25 °C (commercialization). Particularly, active cardboard boxes were coated with a water−based acrylic emulsion containing essential oils (EOs) nanoencapsulated within: β−cyclodextrin (βCD), halloysite nanotubes (HNT) or their combination. A ...
DOI:
10.1016/j.foodcont.2019.106763

4. Core–Shell-Structured Cyclodextrin Metal–Organic Frameworks for Programmable Cargo Release

Author:
Chen, Yifu; Yu, Bo; Xu, Shijie; Ma, Fuyan; Gong, Junbo
Source:
ACS applied materials & interfaces 2019 v.11 no.18 pp. 16280-16284
ISSN:
1944-8252
Subject:
cyclodextrins,   etc   ; chemical structure; coordination compounds;     Show all 3 Subjects
Abstract:
... With a simple design, different core–shell-structured cyclodextrin metal–organic frameworks (CD-MOFs) can realize delayed release and bimodal release of a monocomponent and ordered release of a bicomponent, which establishes the basis for a future complicated programming cargo release system. ...
DOI:
10.1021/acsami.9b01040

5. Tuning the chaotropic effect as an assembly motif through one-electron transfer in a rhenium cluster

Author:
Ivanov, Anton A.; Falaise, Clément; Landy, David; Haouas, Mohamed; Mironov, Yuri V.; Shestopalov, Michael A.; Cadot, Emmanuel
Source:
Chemical communications 2019 v.55 no.67 pp. 9951-9954
ISSN:
1364-548X
Subject:
gamma-cyclodextrin,   etc   ; electron transfer; hydrophilicity; rhenium; selenides;     Show all 5 Subjects
Abstract:
... We report how only one electron transfer from the hydrophilic reduced cluster [{Re₆Se₈}(CN)₆]⁴⁻ induces both a dramatic increase of the host–guest affinity with γ-cyclodextrin and a drastic alteration of the supramolecular dynamics. This striking behaviour, underlined by its thermochemical fingerprint, indicates that the self-assembly process is driven by a chaotropic effect. ...
DOI:
10.1039/c9cc05136h

6. Dynamic hydrogels mediated by macrocyclic host–guest interactions

Author:
Xiao, Tangxin; Xu, Lixiang; Zhou, Ling; Sun, Xiao-Qiang; Lin, Chen; Wang, Leyong
Source:
Journal of materials chemistry B 2019 v.7 no.10 pp. 1526-1540
ISSN:
2050-7518
Subject:
cyclodextrins,   etc   ; aromatic hydrocarbons; biocompatibility; biocompatible materials; hydrogels;     Show all 5 Subjects
Abstract:
... Hydrogels have attracted increasing research interest in recent years due to their dynamic properties and potential applications in biomaterials. Concurrently, macrocycle-based host–guest interactions have played an important role in the development of supramolecular chemistry. Recently, research towards dynamic hydrogels mediated by various macrocyclic host–guest interactions has been gradually d ...
DOI:
10.1039/c8tb02339e

7. Cross‐linked enzyme aggregates of recombinant cyclodextrin glycosyltransferase for high‐purity β‐cyclodextrin production

Author:
Zhang, Jianguo; Li, Mengla; Mao, Hongli
Source:
Journal of chemical technology and biotechnology 2019 v.94 no.5 pp. 1528-1533
ISSN:
0268-2575
Subject:
beta-cyclodextrin; gamma-cyclodextrin,   etc   ; biocatalysts; crosslinking; cyclomaltodextrin glucanotransferase; genes; glutaraldehyde; mutation; potato starch; starch;     Show all 10 Subjects
Abstract:
... BACKGROUND: High‐purity α‐, β‐, or γ‐cyclodextrin (CD) production using cyclodextrin glycosyltransferase (CGTase) as biocatalyst to cyclize starch is advantageous owing to its low cost of purification and product specificity. Several approaches have been investigated to enhance product specificity of CGTase, such as new CGTase isolation, CGTase gene (cgt) mutation, and chemical addition. RESULTS: ...
DOI:
10.1002/jctb.5912

8. Comparison of encapsulation of garlic oil with α‐, β‐, and γ‐cyclodextrin using Selected Ion Flow Tube‐Mass Spectrometry (SIFT‐MS)

Author:
Yu, Jiaxin; Castada, Hardy Z.; Huang, Xuesong; Barringer, Sheryl A.
Source:
Journal of food processing and preservation 2019 v.43 no.2 pp. e13865
ISSN:
0145-8892
Subject:
alpha-cyclodextrin; beta-cyclodextrin; gamma-cyclodextrin,   etc   ; diallyl disulfide; diallyl sulfides; dimethyl sulfide; encapsulation; food industry; garlic; headspace analysis; mass spectrometry; oils; sulfur;     Show all 13 Subjects
Abstract:
... The encapsulation of α‐, β‐, and γ‐cyclodextrin with garlic oil was investigated to determine the efficiency of garlic oil cyclodextrin inclusion complexes. Encapsulation efficiency of cyclodextrin with garlic oil was defined as the mass of garlic oil encapsulated in per unit mass of cyclodextrin, which was calculated through the sum headspace concentrations of diallyl sulfides and allyl methyl su ...
DOI:
10.1111/jfpp.13865

9. Immobilization of commercial cyclomaltodextrin glucanotransferase into controlled pore silica by the anchorage method and covalent bonding

Author:
Gimenez, Gabriela Gregolin; Silva, Richard Marllon; Francisco, Carolina Pereira; Rando, Fabiana dos Santos; Dantas, João Henrique; de Souza, Hâmara Milaneze; Matioli, Graciette
Source:
Process biochemistry 2019 v.85 pp. 68-77
ISSN:
1359-5113
Subject:
cyclodextrins,   etc   ; chemical bonding; cyclomaltodextrin glucanotransferase; ethanol; industrial applications; porosity; silica;     Show all 7 Subjects
Abstract:
... Cyclomaltodextrin glucanotransferase (CGTase) is used mainly for the industrial production of cyclodextrins (CDs). Their potential use and availability have played a decisive role in increasing demand for CDs. The aim of the present study was to immobilize the commercial CGTase (Toruzyme® 3.0L) into controlled pore silica by surface anchoring (SCGT-A) and covalent bonding (SCGT-CB) and to apply th ...
DOI:
10.1016/j.procbio.2019.07.002

10. The baseline resolution of Aldo-monosaccharide enantiomers: Simplified GC–MS analyses using acetal-trifluoroacetyl derivatives for complex samples

Author:
Cooper, George; Yim, Samantha; Lanoiselée, Jeremy; Sorden, Sara; Ramirez, Francisco G.
Source:
Journal of chromatography 2019
ISSN:
1570-0232
Subject:
cyclodextrins,   etc   ; derivatization; enantiomers; erythrose; gas chromatography-mass spectrometry; glyceraldehyde; ribose;     Show all 7 Subjects
Abstract:
... A variety of scientific and technical fields rely on the analysis of monosaccharides (sugars). However, the multiple isomer forms of individual monosaccharides have long hampered their analyses in complex samples: significant chromatographic co-elution often leads to the loss of information on individual compounds. In addition, the chromatographic enantiomer resolution of monosaccharides has of co ...
DOI:
10.1016/j.jchromb.2019.121761

11. Click regulation of cyclodextrin primary face for the preparation of novel chiral stationary phases

Author:
Jin, Xuan; Li, Xiaoxuan; Wang, Yong
Source:
Electrophoresis 2019 v.40 no.15 pp. 1978-1985
ISSN:
0173-0835
Subject:
cyclodextrins,   etc   ; amines; amino acids; chemical species; electrophoresis; fluorescence; moieties; silica;     Show all 8 Subjects
Abstract:
... In this study, a series of novel CD chiral stationary phases were fabricated by immobilization of mono‐6ᴬ‐deoxy‐N₃‐cyclodextrin onto silica surfaces followed by click regulation of CD primary face with 4‐pentynoic acid (acidic moiety), 2‐propynylamine (alkaline moiety) and L‐propargylglycine (chiral amino acid moiety), respectively. Enantioseparations of various kinds of racemates including dansyl ...
DOI:
10.1002/elps.201800418

12. Critical parameters on which the production of trans-resveratrol in Vitis vinifera cv Monastrell cell cultures depends

Author:
Belchí-Navarro, S.; Pedreño, M. A.; Almagro, L.
Source:
Plant cell, tissue, and organ culture 2019 v.138 no.2 pp. 395-398
ISSN:
0167-6857
Subject:
cyclodextrins,   etc   ; Vitis vinifera; aeration; cell culture; cultured cells; methyl jasmonate;     Show all 6 Subjects
Abstract:
... The effect of several parameters on trans-resveratrol extracellular production in Vitis vinifera cv Monastrell suspension cultured cells elicited with cyclodextrins separately or in combination with methyl jasmonate was evaluated. The results indicated that trans-resveratrol production was independent of aeration surface when the same volume of suspension cultured cells was cultivated in flasks of ...
DOI:
10.1007/s11240-019-01632-4

13. Separations of antifungal compounds in capillary electrophoresis with two anionic cyclodextrins

Author:
Dascalu, Anca‐Elena; Ghinet, Alina; Billamboz, Muriel; Lipka, Emmanuelle
Source:
Electrophoresis 2019 v.40 no.15 pp. 1986-1991
ISSN:
0173-0835
Subject:
cyclodextrins,   etc   ; antifungal agents; borates; capillary electrophoresis; enantiomers; phosphates; polyethylene glycol;     Show all 7 Subjects
Abstract:
... CD‐CZE methods were developed for complete stereoisomeric separations of a series of six γ‐lactam analogues, of which some were neutral, or cationic depending on the background electrolyte nature. The tested cyclodextrin was the versatile sulfobutylether‐ β‐CD, used either in a phosphate buffer using capillaries dynamically coated with polyethylene oxide or in a borate buffer using uncoated capill ...
DOI:
10.1002/elps.201800479

14. Mechanical and self-recovery properties of supramolecular ionic liquid elastomers based on host–guest interactions and correlation with ionic liquid content

Author:
Sinawang, Garry; Kobayashi, Yuichiro; Osaki, Motofumi; Takashima, Yoshinori; Harada, Akira; Yamaguchi, Hiroyasu
Source:
RSC advances 2019 v.9 no.39 pp. 22295-22301
ISSN:
2046-2069
Subject:
cyclodextrins,   etc   ; acrylates; copolymerization; crosslinking; energy; ionic liquids; mechanical properties; polymers;     Show all 8 Subjects
Abstract:
... Supramolecular materials have received considerable attention due to their higher fracture energy and self-recovery capability compared to conventional chemically cross-linked materials. Herein, we focus on the mechanical properties and self-recovery behaviours of supramolecular polymeric elastomers swollen with ionic liquid. We also gained insight into the correlation between ionic liquid content ...
DOI:
10.1039/c9ra04623b

15. β-Cyclodextrin-copper (II) complex as chiral selector in capillary electrophoresis for the enantioseparation of β-blockers

Author:
Hu, Shaoqiang; Zhang, Min; Li, Feng; Breadmore, Michael C.
Source:
Journal of chromatography 2019 v.1596 pp. 233-240
ISSN:
0021-9673
Subject:
beta-cyclodextrin,   etc   ; beta-adrenergic antagonists; capillary electrophoresis; chromatography; copper; enantiomers;     Show all 6 Subjects
Abstract:
... The Copper (II) complex of β-cyclodextrin (β-CD), β-CDCu2, was prepared and used as a chiral selector for the enantioseparation of 11 β-blockers by capillary electrophoresis. Resolution for 10 pairs of enantiomers was greater than 1.9 and for the four stereoisomers of labetalol (with two chiral centers), the closest two peaks had a resolution of 1.2. The resolution was superior to that obtained by ...
DOI:
10.1016/j.chroma.2019.03.019

16. Controllable and large-scale supramolecular vesicle aggregation: orthogonal light-responsive host–guest and metal–ligand interactions

Author:
Du, Guangyan; Lou, Lingyun; Guan, Shuwen; Peng, Yuanyuan; Qiao, Hongwei; Liu, Pingli; Wu, Dan
Source:
Journal of materials chemistry B 2019 v.7 no.26 pp. 4177-4183
ISSN:
2050-7518
Subject:
beta-cyclodextrin,   etc   ; azo compounds; chemical interactions; irradiation; light; metal ions;     Show all 6 Subjects
Abstract:
... On the basis of the host–guest molecular recognition interaction between β-cyclodextrin and azobenzene, two kinds of supramolecular self-assemblies (Py-CD⊃Azo-C and Py-CD⊃Azo-C₃) were constructed. Owing to the azo group on the guest molecule, supramolecular vesicles could reversibly realize disassembly and reassembly under irradiation with UV and visible light. Because of the existence of terpyrid ...
DOI:
10.1039/c9tb00693a

17. Complex systems that incorporate cyclodextrins to get materials for some specific applications

Author:
Fernández, Mariana A.; Silva, O. Fernando; Vico, Raquel V.; de Rossi, Rita H.
Source:
Carbohydrate research 2019 v.480 pp. 12-34
ISSN:
0008-6215
Subject:
gamma-cyclodextrin,   etc   ; biodegradability; catalysts; chemical bonding; glucose; hydrocarbons;     Show all 6 Subjects
Abstract:
... Cyclodextrins (CDs) are a family of biodegradable cyclic hydrocarbons composed of α-(1,4) linked glucopyranose subunits, the more common containing 6, 7 or 8 glucose units are named α, β and γ-cyclodextrins respectively. Since the discovery of CDs, they have attracted interest among scientists and the first studies were about the properties of the native compounds and in particular their use as ca ...
DOI:
10.1016/j.carres.2019.05.006

18. Orchestrating Communications in a Three-Type Chirality Totem: Remote Control of the Chiroptical Response of a Möbius Aromatic System

Author:
Benchouaia, Rajaa; Cissé, Nicolas; Boitrel, Bernard; Sollogoub, Matthieu; Le Gac, Stéphane; Ménand, Mickaël
Source:
Journal of the American Chemical Society 2019 v.141 no.29 pp. 11583-11593
ISSN:
1520-5126
Subject:
alpha-cyclodextrin,   etc   ; enantioselectivity; optical isomerism; remote control; stereospecificity; topology;     Show all 6 Subjects
Abstract:
... Among the various types of chirality (central, axial, helical, planar, etc.), that inherent to Möbius topology remains almost unexplored, partly due to the difficulty to access Möbius compounds. Over the past decade, [28]hexaphyrins have been revealed to be among the best candidates to build on Möbius aromaticity. Whereas their flexibility needs to be controlled to get P/M twist enantioselectiv ...
DOI:
10.1021/jacs.9b04074

19. Covalently bound monolayer patterns obtained by plasma etching on glass surfaces

Author:
Willems, Stan B. J.; Schijven, Laura M. I.; Bunschoten, Anton; van Leeuwen, Fijs W. B.; Velders, Aldrik H.; Saggiomo, Vittorio
Source:
Chemical communications 2019 v.55 no.53 pp. 7667-7670
ISSN:
1364-548X
Subject:
beta-cyclodextrin,   etc   ; chemical bonding; chemical reactions; glass; polydimethylsiloxane;     Show all 5 Subjects
Abstract:
... Micropatterns of β-cyclodextrin (β-CD) monolayers on glass are obtained by using a plasma etching approach with polydimethylsiloxane (PDMS) stamps. This simple and versatile approach provides a promising alternative to current techniques for creating patterns of covalently bound molecules. It is also possible to fabricate sub-10 μm sized features. ...
DOI:
10.1039/c9cc03791h

20. 3D-QSAR for binding constants of β-cyclodextrin host-guest complexes by utilising spectrophores as molecular descriptors

Author:
Jeschke, Steffen; Cole, Ivan S.
Source:
Chemosphere 2019 v.225 pp. 135-138
ISSN:
0045-6535
Subject:
beta-cyclodextrin,   etc   ; models; quantitative structure-activity relationships; remediation;     Show all 4 Subjects
Abstract:
... The increasing use of cyclodextrins (CDs) as host-molecules for host-guest complexes and their remediation application in environmental science requires to establish easily accessible models of “quantitative structure-activity relationships” (QSARs) to predict the binding constants. A new open-source molecular descriptor, so called spectrophores, was utilised to build 3D-QSAR models which have R2 ...
DOI:
10.1016/j.chemosphere.2019.03.020