نتایج جستجو برای: m peg pcl

تعداد نتایج: 557696  

Journal: :Advanced materials 2012
Sharon M Loverde Michael L Klein Dennis E Discher

Nanoparticle shape can improve drug delivery, based in part on recent fi ndings that fl exible, worm-like nanocarriers (Worms) increase the amount of drug delivered to tumors and shrink the tumors more effectively than spherical micelles (Spheres). Here, all-atom molecular dynamics (MD) simulations are used to build a rational coarse grain (rCG) model that helps clarify shape-dependent effects ...

Journal: :European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V 2009
Virginie Fievez Laurence Plapied Anne des Rieux Vincent Pourcelle Hélène Freichels Valentine Wascotte Marie-Lyse Vanderhaeghen Christine Jerôme Alain Vanderplasschen Jacqueline Marchand-Brynaert Yves-Jacques Schneider Véronique Préat

The presence of RGD on nanoparticles allows the targeting of beta1 integrins at the apical surface of human M cells and the enhancement of an immune response after oral immunization. To check the hypothesis that non-peptidic ligands targeting intestinal M cells or APCs would be more efficient for oral immunization than RGD, novel non-peptidic and peptidic analogs (RGD peptidomimitic (RGDp), LDV...

Journal: :Advanced pharmaceutical bulletin 2015
Leila Barghi Davoud Asgari Jaleh Barar Hadi Valizadeh

PURPOSE Polycaprolactone (PCL) is a biodegradable polyester and has attracted attention as a suitable carrier for development of controlled drug delivery due to its non-toxicity and biocompatibility. It has been reported that the biodegradability of PCL can be enhanced by copolymerization with PEG. Molecular weight (Mw) and CL block lengths optimization in a series of synthesized PCEC copolymer...

Journal: :Biomaterials 2011
Hongliang Xin Xinyi Jiang Jijin Gu Xianyi Sha Liangcen Chen Kitki Law Yanzuo Chen Xiao Wang Ye Jiang Xiaoling Fang

Dual-targeting nanoparticle drug delivery system was developed by conjugating Angiopep with PEG-PCL nanoparticles (ANG-NP) through bifunctional PEG to overcome the limitations of low transport of chemotherapeutics across the Blood-brain barrier (BBB) and poor penetration into tumor tissue. ANG-NP can target the low-density lipoprotein receptor-related protein (LRP) which is over-expressed on th...

2017
Hanmei Li Yanping Li Xue Wang Yingying Hou Xiaoyu Hong Tao Gong Zhirong Zhang Xun Sun

Poor distribution of antigen/adjuvant to target sites and inadequate induction of T cell responses remain major challenges in cancer immunotherapy because of the lack of appropriate delivery systems. Nanocarrier-based antigen delivery systems have emerged as an innovative strategy to improve vaccine efficacy. Here we present polymeric hybrid micelles (PHMs) as a simple and potent antigen/adjuva...

2011
Manzoor Ahmad Bin Xu Yongqing Fu Weimin Huang Mohsen Miraftab Jikui Luo

Shape memory polyurethanes (SMPUs) are typically synthesized using polyols of low molecular weight (MW~2,000 g/mol) as it is believed that the high density of cross-links in these low molecular weight polyols are essential for high mechanical strength and good shape memory effect. In this study, polyethylene glycol (PEG-6000) with MW ~6000 g/mol as the soft segment and diisocyanate as the hard ...

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