pH-responsive vesicle-like particles based on inclusion complexes between cyclodextrins and methyl orange

Zhang, Huacheng; Sun, Lianli; Liu, Zhaona; An, Wei; Hao, Aiyou; Xin, Feifei; Shen, Jian

doi:10.1016/j.colsurfa.2010.01.026

Cited by 26 publications

(12 citation statements)

References 47 publications

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“…Fluorescence measurements and NMR confirmed the existence of inclusion complexes between MO and g-HB-b-CD. 85 The morphologies and sizes of these novel vesicles formed by cyclodextrin amphiphiles, consisting of the guest (N-1-decylferrocenylmethylamine, 1) and the host (2-O-carboxymethyl-b-cyclodextrin, CM-b-CD) were studied by transmission electron microscopy (TEM) and were confirmed by AFM and DLS. The interactions between the host and the guest, the complex stoichiometry, the stability constant and conformations were investigated by cyclic voltammetry (CV), UV and NMR measurements.…”

Section: Thermotropic Liquid Crystalsmentioning

confidence: 99%

NMR of liquid crystals and micellar solutions

D’Errico¹,

Paduano²

2011

Nuclear Magnetic Resonance

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Section: Thermotropic Liquid Crystalsmentioning

confidence: 99%

NMR of liquid crystals and micellar solutions

D’Errico¹,

Paduano²

2011

Nuclear Magnetic Resonance

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“…例如, 环糊精结构就曾与咪唑类表面活性剂结合, 共同调节热控制的烯烃氢甲酰化反应(Scheme 19) [134] . [133,138] [139] 或者规则的膜片结构 [140] , 用作模板, 以引导聚吡咯形成对称的辐射型形貌或者规则的六角片状形貌. 实际上, 疏水烷基链共价键修饰的环糊精衍生物, 作为第一类"超分子环糊精两亲分子"(图 4)也可以在有机反应中发挥模板作用.…”

Section: Scheme 18unclassified

Organic Synthesis Based on Cyclodextrins Template Method

Zhang¹,

Liu²,

Xin³

et al. 2012

Chin. J. Org. Chem.

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The organic synthesis based on cyclodextrin template method is reviewed initially by using the "template" concept.These organic synthesis reactions are divided into two main types: one type is based on cyclodextrin "static" template which includes the primary, secondary faces and the cavity. The reactions based on the primary and secondary faces mainly show that the template can control the stereo-structure. While the reactions based on the cavity are mainly using the size and chiral properties of the cavity to do the chemical, regio-and stereo-selectivity, showing that the template can carry out information transfer. The other type is based on cyclodextrin "dynamic" template including the bridge-linked cyclodextrin dimmers with variable conformations and the assemblies prepared by the cyclodextrin derivatives and inclusion complexes. These dynamic templates themselves can be adjusted.

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“…The block copolymers, which respond to acidbase interactions or to changes in pH of the environment, are attractive materials for biological applications [18][19][20]. A typical way to obtain pH-responsive polymers is grafting pH-responsive groups onto the polymer backbone [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of pH-responsive diblock copolymers with cadaverine side groups

Wang

Zhu²,

Ren

et al. 2012

Colloid Polym Sci

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In this paper, we report the synthesis and characterization of a new pH-responsive diblock copolymer, methoxy poly(ethylene glycol)-b-poly[N 1 -(4-vinylbenzyl) pentane-1,5-diamine dihydrochloride] (mPEG-b-PVBPDA). The monomer with cadaverine side group (N 1 -(4-vinylbenzyl)pentane-1,5-diamine dihydrochloride, VBPDA) and the macroinitiator (mPEG-ACVA) were synthesized, respectively, and mPEG-b-PVBPDA was then obtained by free radical polymerization. The structure and molecular weight of mPEG-b-PVBPDA was confirmed by FTIR, 1 H NMR, and GPC-MALLS measurements. At low pH, it is hydrophilic due to the protonation of the amine groups. With increasing pH, deprotonation occurs, and the hydrophobicity of PVBPDA block increases. This molecular feature leads to interesting aggregation behavior of mPEG-b-PVBPDA in aqueous solutions at different pH as revealed by DLS measurements, TEM observations, and fluorescence spectrometry. This polymer was further subjected to gene delivery evaluations, and promising DNA transfection capacity has been found.

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pH-responsive vesicle-like particles based on inclusion complexes between cyclodextrins and methyl orange

Cited by 26 publications

References 47 publications

NMR of liquid crystals and micellar solutions

NMR of liquid crystals and micellar solutions

Organic Synthesis Based on Cyclodextrins Template Method

Synthesis and characterization of pH-responsive diblock copolymers with cadaverine side groups

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