نتایج جستجو برای: β cd

تعداد نتایج: 223368  

Journal: :Chemical communications 2012
Avijit Mondal Nikhil R Jana

A fluorescence based cholesterol detection method has been developed using competitive host-guest interaction between graphene bound β-cyclodextrin (β-CD) with rhodamine 6G (R6G) and cholesterol. Fluorescence of β-CD incorporated R6G is quenched by graphene but is 'turned on' by cholesterol as it replaces R6G from the β-CD host.

Carvedilol is administered as a racemic mixture of the R(+)- and S(-)-enantiomers, although it was demonstrated that the two enantiomers exhibit different pharmacological effects and stereoselective pharmacokinetics. The aim of this study was the evaluation of several native and derivatized cyclodextrines as chiral selectors for the separation of carvedilol enantiomers. Stereoselective interact...

2017
Thiago Isidro Vieira Camila Nassur Adílis Kalina Alexandria Luciana Pomarico Valeria Pereira Sousa Lúcio Mendes Cabral Ana Maria G. Valença Lucianne Cople Maia

OBJECTIVE Titanium tetrafluoride (TiF4) is a topical agent used in the control of dental caries; however, it is highly acidic. To minimize this effect, cyclodextrins (CDs) are used. This study evaluated the in vitro potential of TiF4 and β-CD on remineralization. METHODS Forty bovine enamel blocks were selected by microhardness and randomly assigned to four groups (n = 10 per group): control ...

Introduction: Electrospun nanomembranes have been used for effective air filtration due to their potential for active surface modification. This study aims to synthesize polyurethane (PU) nanofiber membrane incorporated with different amounts of β-cyclodextrin (β-CD) to capture volatile organic compounds (VOCs) along with aerosol filtration from the air. Material and Methods: First, PU was sy...

Journal: :Chemical & pharmaceutical bulletin 2013
Noriko Ogawa Mayumi Kaga Tomohiro Endo Hiromasa Nagase Takayuki Furuishi Hiromitsu Yamamoto Yoshiaki Kawashima Haruhisa Ueda

Quetiapine, an antipsychotic drug used for schizophrenia treatment, is poorly water soluble, and therefore, administration of the more water-soluble quetiapine fumarate is preferred. Absorption of quetiapine through biological membranes may be improved by enhancing the solubility of the quetiapine base, the non-ionic form. In this study, the currently used salt form was converted into the free ...

Journal: :journal of agricultural science and technology 0
kh. khoshtinat department of food science and technology, faculty of agriculture, tarbiat modares university, p. o. box: 14155-336, tehran, islamic republic of iran. m. barzegar department of food science and technology, faculty of agriculture, tarbiat modares university, p. o. box: 14155-336, tehran, islamic republic of iran. m. a. sahari department of food science and technology, faculty of agriculture, tarbiat modares university, p. o. box: 14155-336, tehran, islamic republic of iran. z. hamidi department of food science and technology, faculty of agriculture, tarbiat modares university, p. o. box: 14155-336, tehran, islamic republic of iran.

the aim of this study was to optimize the encapsulation conditions of garlic oil (go) with β-cyclodextrin (go/β-cd) inclusion complex by the co-precipitation method. response surface optimization of encapsulation of go with β–cd was performed with a three-variable, three-level and the optimum conditions were as follows: temperature: 35oc, core/wall: 8/100, and wall/solvent: 5.5/100. the complex...

2016
Eunae Cho Hwanhee Kim Youngjin Choi Seung R. Paik Seunho Jung

Selective visualization of arginine and lysine has been explored among 20 amino acids using the hybrid conjugate of β-cyclodextrin (β-CD) and polydiacetylene (PDA). The mono pentacosa-10,12-diynyl aminomethyl group was successfully coupled to either the primary or the secondary face of β-CD, where mono-6-amino-6-deoxy-β-CD or mono-3-amino-3-deoxy-β-CD reacted with the N-hydroxysuccinimide ester...

Abdoreza Mohammadi Fatemeh Atyabi, Khosro Abdi Majedeh Maleki Ramin Khaksar, zahra hadian,

The aim of the present study was to formulate β-cyclodextrin (β-CD) nanoparticles loaded with geraniol (GR) essential oil (EO) with appropriate physicochemical properties. Complexation of GR with β-CD was optimized by evaluation of four formulations, using the co-precipitation method, and the encapsulation efficiency (EE), loading, size, particle size distribution (PDI) and zeta potential were ...

Abdoreza Mohammadi Fatemeh Atyabi, Khosro Abdi Majedeh Maleki Ramin Khaksar, zahra hadian,

The aim of the present study was to formulate β-cyclodextrin (β-CD) nanoparticles loaded with geraniol (GR) essential oil (EO) with appropriate physicochemical properties. Complexation of GR with β-CD was optimized by evaluation of four formulations, using the co-precipitation method, and the encapsulation efficiency (EE), loading, size, particle size distribution (PDI) and zeta potential were ...

2015
Martin Popr Sergey K Filippov Nikolai Matushkin Juraj Dian Jindřich Jindřich

The thermal stability of the monosubstituted cationic cyclodextrin (CD) derivatives PEMEDA-β-CD and PEMPDA-β-CD, which differ in their substituent linker length (ethylene and propylene, respectively), was studied via (1)H NMR experiments. PEMPDA-β-CD exhibited higher resistance towards the Hofmann degradation and was chosen as a more suitable host molecule for further studies. Inclusion propert...

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