نتایج جستجو برای: dendrimer hybrid

تعداد نتایج: 193126  

Journal: :The journal of physical chemistry. B 2006
Prabal K Maiti William A Goddard

We have performed approximately 20-40 ns of molecular dynamics (MD) simulations for the generation 8 PAMAM dendrimer in explicit water under varying pH conditions to study the structure of the dendrimer (approximately 156,738 atoms at low pH). This is the first report of such a long MD simulation of a larger generation PAMAM dendrimer including the effect of salt and counterions with explicit w...

Journal: :ACS nano 2011
Jyotsnendu Giri Mamadou S Diallo André J Simpson Yi Liu William A Goddard Rajeev Kumar Gwen C Woods

The interactions of nanomaterials with plasma proteins have a significant impact on their in vivo transport and fate in biological fluids. This article discusses the binding of human serum albumin (HSA) to poly(amidoamine) [PAMAM] dendrimers. We use protein-coated silica particles to measure the HSA binding constants (K(b)) of a homologous series of 19 PAMAM dendrimers in aqueous solutions at p...

Journal: :Chemical communications 2014
Zen Maeno Takato Mitsudome Tomoo Mizugaki Koichiro Jitsukawa Kiyotomi Kaneda

The selective synthesis of the [Rh5(CO)15](-) cluster within the PPI dendrimer was successfully demonstrated. The dendrimer-encapsulated [Rh5(CO)15](-) was resistant to decomposition under the catalytic reaction conditions and exhibited extremely high selectivity for the chemoselective reduction of nitro groups of various nitro aromatics with other reducible groups using CO/H2O as a reductant.

Journal: :Chemical communications 2011
Annie Castonguay Eleanor Wilson Noura Al-Hajaj Laurène Petitjean Julie Paoletti Dusica Maysinger Ashok Kakkar

A simple and versatile dendrimer based platform to deliver therapeutic agents at temperatures within the physiological range, is reported. Lipoic acid conjugated at the periphery of the thermosensitive dendrimer formulations undergoes slow and sustained release at 37-42 °C, and rescues the cells from oxidative stress and a pro-inflammatory endotoxic agent.

2012
Lihui Yang Jingzhong Liu Qianhong Zhang

A dendrimer is an artificially manufactured or synthesized molecule built up from branched units called monomers. In this paper, we shall give the exact formulas for the first-connectivity, second-connectivity indices and polynomials, PI and vertex-PI indices and polynomials of an infinite class of dendrimer nanostars.

Journal: :Journal of Japan Oil Chemists' Society 2000

Journal: :The Analyst 2006
Xiangyang Shi István J Majoros Anil K Patri Xiangdong Bi Mohammad T Islam Ankur Desai T Rose Ganser James R Baker

Poly(amidoamine) (PAMAM) dendrimer-based nanodevices are of recent interest in targeted cancer therapy. Characterization of mono- and multifunctional PAMAM-based nanodevices remains a great challenge because of their molecular complexity. In this work, various mono- and multifunctional nanodevices based on PAMAM G5 (generation 5) dendrimer were characterized by UV-Vis spectrometry, (1)H NMR, si...

Journal: :Colloids and surfaces. B, Biointerfaces 2015
Prashant Kesharwani Lingxiao Xie Sanjeev Banerjee Guangzhao Mao Subhash Padhye Fazlul H Sarkar Arun K Iyer

The current study was aimed to develop a targeted dendrimer formulation of 3, 4-difluorobenzylidene curcumin (CDF) and evaluate its potential in CD44 targeted therapy for pancreatic cancer. Using amine terminated fourth generation poly(amidoamine) (PAMAM) dendrimer nanocarrier and hyaluronic acid (HA) as a targeting ligand, we engineered a CD44-targeted PAMAM dendrimer (HA-PAMAM) formulation of...

Journal: :Nanomedicine : nanotechnology, biology, and medicine 2013
Sourav Prasanna Mukherjee Hugh J Byrne

UNLABELLED Mechanisms underlying the in vitro cytotoxicity of Polyamidoamine nano-dendrimers in human keratinocytes are explored. Previous studies demonstrated a systematic, dendrimer-generation-dependent cytotoxicity, oxidative stress, and genotoxicity. The emerging picture is of dendrimer endocytosis, endosomal rupture and subsequent mitochondrial attack and cell death. To understand the unde...

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