effect of rotovapor in pseudopolyrotaxanes formed with cyclodextrins and organic solvent

Formation and characterization of pseudo - ScienceDirect

2016-5-20 · Novel pseudo-polyrotaxanes (PPRs) consisting of poly(p-dioxanone) (PPDO) and cyclodextrins (CDs) were obtained via heat-cool (H-C) cycles.The optimum preparation condition for achieving the highest yield was investigated, which was selected as follow: 3 times H-C cycles in 72 h of PPDO and CDs dissolved in DMF at 60 °C.The PPRs were further characterized by …

Formation of Cyclodextrin-Based Polypseudorotaxanes

2001-6-29 · The kinetics of the threading process was determined as a function of the temperature and solvent composition (water, heavy water, and urea). When the water solution of cyclodextrin was added to the polymer''s dispersion, a thick solid precipitate was promptly formed, depending on the concentration and temperature.

Formation and characterization of pseudo - ScienceDirect

2016-5-20 · Novel pseudo-polyrotaxanes (PPRs) consisting of poly(p-dioxanone) (PPDO) and cyclodextrins (CDs) were obtained via heat-cool (H-C) cycles.The optimum preparation condition for achieving the highest yield was investigated, which was selected as follow: 3 times H-C cycles in 72 h of PPDO and CDs dissolved in DMF at 60 °C.The PPRs were further characterized by …

Cyclodextrin-Based Supramolecular Hydrogel | SpringerLink

2018-12-5 · Abstract. Cyclodextrins (CDs), as a kind of cyclic host molecules, have been widely investigated due to their specific complexation with a series of guest molecules of matched sizes and properties. And gels, possessing advantages of both elasticity and mobility, are under fast development in soft material field, while supramolecular CD gels

- - Nankai …

2022-3-21 · Xianyin Dai, Bing Zhang, Weilei Zhou and Yu Liu*. High-efficiency Synergistic Effect of Supramolecular Nanoparticles Based on Cyclodextrin-prodrug on Cancer Therapy. Biomacromolecules, 2020, 21, 4998-5007.

Effect of hydroxypropyl-β–cyclodextrin on lipid merane

2018-4-1 · DPPC (25 mg/mL) was solubilized in a solvent mixture of chloroform/methanol 2:1 (v/v). The preparation was then evaporated in a rotary evaporator (BÜCHI Rotavapor R-100) to form a thin lipid film. The latter was then hydrated with 2 mL of 0.1 M Tris–HCl (pH 7.4) containing HP-β-CD at DPPC:HP-β-CD molar ratios of 100:181; 100:454; 100:909

Effect of Biodegradable Polyrotaxanes on Platelet

1998-1-12 · Abstract. Cellular response to our designed biodegradable polyrotaxanes was evaluated in terms of physicochemical interaction with plasma merane and intracellular metabolism of platelets. The polyrotaxanes, in which many hydroxypropylated (HP-) α-cyclodextrins are threaded onto a poly (ethylene glycol) chain capped with a l -phenylalanine

Synthesis, characterization and properties of side-chain

2006-1-13 · Pseudopolyrotaxanes 3 is synthesized from cucurbituril[6] (CB[6]) and polymer 2 (poly-N 1-(4-vinylbenzyl)-1,4-diaminobutane dihydrochloride) in water by simple stirring at room temperature.The monomer 1, polymer 2 and pseudopolyrotaxanes 3 are characterized by 1 H NMR, 13 C NMR, FT-IR and elemental analysis. In 3, the CB[6] beads are localized on …

Formation of a Supramolecular Gel between α …

2004-9-9 · Remarkable Viscoelasticity in Mixtures of Cyclodextrins and Nonionic Surfactants. Langmuir 2014, 30 (39) , 11552-11562. DOI: 10.1021/la503000z. Edvaldo Sabadini, Fernanda do Carmo Egídio, and Terence Cosgrove . More on Polypseudorotaxanes Formed between Poly(ethylene glycol) and α-Cyclodextrin.

Cyclodextrin-Based Pseudopolyrotaxanes as Templates for

26 Cyclodextrins can be employed not only as structure directing templates but also as carriers for metal nanoparticle precursors. 25 The cyclodextrin-silica organic-inorganic hybrid was prepared

Formation of a Supramolecular Gel between α …

2004-9-9 · Remarkable Viscoelasticity in Mixtures of Cyclodextrins and Nonionic Surfactants. Langmuir 2014, 30 (39) , 11552-11562. DOI: 10.1021/la503000z. Edvaldo Sabadini, Fernanda do Carmo Egídio, and Terence Cosgrove . More on Polypseudorotaxanes Formed between Poly(ethylene glycol) and α-Cyclodextrin.

Hybrid Pseudopolyrotaxanes of Cyclodextrins and

2020-4-9 · Pseudopolyrotaxanes (PPRs) are supramolecular host–guest complexes constituted by the reversible threading of macrocycles along a polymer chain. We report the formation of hybrid PPRs (hPPRs), where two types of cyclodextrins (CDs) thread

2005-2010-

2021-12-23 · Yu Liu,* Zhi-Lin Yu, Ying-Ming Zhang, Dong-Sheng Guo, and Yu-Ping Liu, "Supramolecular Architectures of b-Cyclodextrin-Modified Chitosan and Pyrene Derivatives Mediated by Carbon Nanotubes and their DNA Condensation" J. Am. Chem. Soc., 2008, 130(31), 10431-10439.PDF[For a highlight of this paper see “Gene therapy: Packaged DNA” published …

Molecules | Free Full-Text | Cyclodextrin Rotaxanes - MDPI

2020-11-29 · The ionic Pt complex (Pt(NC6H4-C6H4N-(CH2)10-O(C6H3-3,5-(OMe)2)(MeN-(CH2CH2NMe2)2))+ was prepared by the reaction of alkylbipyridinium ligand with a nitrateplatinum(II) complex. Mixing the complex and α- and β-cyclodextrins in aqueous media produced the corresponding [2]rotaxanes with 1:1 stoichiometry. γ-Cyclodextrin and the Pt …

Supramolecular aggregates formed by sulfadiazine and

2014-8-14 · The objective of the present work was to study the self assely behavior of sulfadiazine (SDA) and sulfisomidine (SFM) drugs with α-CD and β-CD.The absorption and fluorescence characteristics of both SDA and SFM drugs with different solvents, pH and β-CD were already reported , .In our previous study we investigated inclusion complexation of some …

Effect of cyclodextrins on the solubility and stability of

2011-2-20 · 1. Introduction. The use of cyclodextrins (CyDs) in the pharmaceutical industry has grown to a great deal, where different approved pharmaceutical products are already marketed in Japan, the European countries and the USA .The parent CyDs (α-, β-, and γ-CyD) and their derivatives are widely used to improve the solubility of water insoluble compounds through …

Preparation of a “sliding graft copolymer ”, an organic

Preparation of a “sliding graft copolymer ”, an organic solvent-soluble polyrotaxane containing mobile side chains, and its appliion for a crosslinked elastomeric supramolecular film† ‡. Jun Araki§ * ab, Toshiyuki Kataoka¶ a and Kohzo Ito * ab a Department of Advanced Material Science, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, …

Recent Advances in Host–Guest Self-Asseled - Wiley

2020-2-5 · The reliability of the method often depends upon the properties of the guest molecule (chirality, intrinsic fluorescence), CyD inner cavity diameter, and solvent effect. Each method has its pros and cons and the selection of the method requires in-depth knowledge about the chemistry involved in inclusion complex formation.

Controllable DNA condensation through cucurbit[6]uril in …

2D pseudopolyrotaxanes containing b-cyclodextrins and cucurbit[6]urils can induce DNA condensation, and the nuer of cucurbit[6]urils threaded onto the side chains of b-cyclodextrins plays important roles in this process. Controllable DNA condensation

Solvent‐free synthesis of pseudopolyrotaxane and

2007-3-8 · INTRODUCTION. The solvent‐free synthesis and solid‐state synthesis of compounds that cannot be obtained by reactions other than those in solution are of great significance or really ideal not only because of simple, economical, and practical manufacturing but also because of environmental compatibility. 1 A variety of organic compounds, including polymers, are …

Pseudo-Polyrotaxanes of Cyclodextrins with Direct and

Inclusion complexes between cyclodextrins and polymers - so-called pseudopolyrotaxanes (PPR) - are at the origin of fascinating supramolecular structures, which are finding increasing uses in

Chemistry and engineering of cyclodextrins for …

The use of the CD is to enhance the uptake of the probe by bacteria so as to image the site of Staphylococcus aureus infection in a mouse model of prosthetic joint infection. 246 Compared to using ICG alone, the one incorporated with β …

Cyclodextrin Rotaxanes of Pt Complexes and Their

2020-11-29 · Europe PMC is an archive of life sciences journal literature.

Cyclodextrin-Based Supramolecular Hydrogel | SpringerLink

2018-12-5 · Abstract. Cyclodextrins (CDs), as a kind of cyclic host molecules, have been widely investigated due to their specific complexation with a series of guest molecules of matched sizes and properties. And gels, possessing advantages of both elasticity and mobility, are under fast development in soft material field, while supramolecular CD gels

- - Nankai …

2022-3-21 · Xianyin Dai, Bing Zhang, Weilei Zhou and Yu Liu*. High-efficiency Synergistic Effect of Supramolecular Nanoparticles Based on Cyclodextrin-prodrug on Cancer Therapy. Biomacromolecules, 2020, 21, 4998-5007.

Cyclodextrins Based Rotaxanes and Polyrotaxanes: The

Cyclodextrins Based Rotaxanes and Polyrotaxanes: The Potential Hauler in Drug Delivery and Therapeutics No covalent bonds are broken or formed during formation of the inclusion complex 6. Inclusion in CDs exerts a profound effect on the physicochemical properties of guest molecules as they are temporarily locked or caged within the host

Polymer-free cyclodextrin and natural - ScienceDirect

2021-7-15 · The present review discusses the use of cyclodextrins and their derivatives to prepare electrospun nanofibers with specific features. Cyclodextrins, owing to their unique capability to form inclusion complexes with hydrophobic and volatile molecules, can indeed facilitate the encapsulation of bioactive compounds in electrospun nanofibers allowing fast-dissolving …

Cyclodextrins: from solute to solvent - PubMed

A supramolecular solvent based on cyclodextrin (CD) is presented here for the first time. Indeed, a low melting mixture was obtained by mixing levulinic acid and a CD derivative, which retained its inclusion ability in the resulting solvent. This new system gives rise to a new family of solvents tha …