نتایج جستجو برای: poly ethylene glycol

تعداد نتایج: 115260  

Journal: :Chemical communications 2012
Huaping Tan Chao Xiao Jinchen Sun Dangsheng Xiong Xiaohong Hu

A biological hydrogel was self-assembled via Watson-Crick base pairing of thymine and adenine from functionalized star poly(ethylene glycol). Our work should provide a novel methodology to generate robust injectable scaffolds with tailorable properties for biomedical applications.

Journal: :Chemical communications 2012
Friederike Schütze Beate Stempfle Christian Jüngst Dominik Wöll Andreas Zumbusch Stefan Mecking

Monitoring of the formation of stable fluorescent nanoparticles from controlled mixing of a THF solution of poly(fluorene ethynylene)-block-poly(ethylene glycol) in a microfluidic laminar flow crossjunction by spatially resolved fluorescence spectroscopy reveals the time scale of particle formation as well as incorporation of small molecule guests and the role of solvent mixing.

Journal: :Chemical communications 2010
Jun Ge Gunilla B Jacobson Tatsiana Lobovkina Krister Holmberg Richard N Zare

A general approach for producing biodegradable nanoparticles for sustained nucleic acid release is presented. The nanoparticles are produced by precipitating a water-in-oil microemulsion in supercritical CO(2). The microemulsion consists of a transfer RNA aqueous solution (water phase), dichloromethane containing poly(l-lactic acid)-poly(ethylene glycol) (oil phase), the surfactant n-octyl β-D-...

Journal: :Advanced materials 2017
Ali K Yetisen Nan Jiang Afsoon Fallahi Yunuen Montelongo Guillermo U Ruiz-Esparza Ali Tamayol Yu Shrike Zhang Iram Mahmood Su-A Yang Ki Su Kim Haider Butt Ali Khademhosseini Seok-Hyun Yun

Hydrogel optical fibers are utilized for continuous glucose sensing in real time. The hydrogel fibers consist of poly(acrylamide-co-poly(ethylene glycol) diacrylate) cores functionalized with phenylboronic acid. The complexation of the phenylboronic acid and cis-diol groups of glucose enables reversible changes of the hydrogel fiber diameter. The analyses of light propagation loss allow for qua...

Journal: :Chemical communications 2015
Zhigang Xu Shiying Liu Hui Liu Cangjie Yang Yuejun Kang Mingfeng Wang

Well-defined star-like amphiphilic polymers composed of a β-cyclodextrin core, from which 21 hydrophobic poly(lactic acid) arms and hydrophilic poly(ethylene glycol) arms are grafted sequentially, form robust and uniform unimolecular micelles that are biocompatible and efficient in the delivery of anticancer drugs.

2012
Yanhui Duan Haiyan Liu Suying Sun Yanzhao Gu Jia Li

A solid-phase extraction absorbent material based on poly (N-isopropylacrylamide-comethacrylic acidco-ethylene glycol dimethacrylate) [poly (NIPAAm-MAA-co-EDMA)] monolithic column was developed for the simultaneous determination of nitrendipine and nisoldipine from human urine. The morphology of monolithic column and pressure drop across the columns were characterized. The results showed excell...

2011
Mukesh Ukawala Tushar Rajyaguru Kiran Chaudhari A. S. Manjappa R. S. R. Murthy Rajiv Gude

In the present study, poly(ethylene glycol)-b-poly(ε-caprolactone) micelles loaded with etoposide (ETO) were formulated and further conjugated with pentapeptide Glu-Ile-Leu-Asp-Val (EILDV) to target α4β1 integrin receptor overexpressed on metastatic tumor cell. Using a distinct ratio of carboxyl-terminated poly(ethylene glycol)-block-poly(ε-caprolactone) (HOOC-PEG-b-PCL) to methoxy-poly(ethylen...

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