Results 41 to 50 of about 43,848 (310)
Charge-induced conformational changes of dendrimers [PDF]
Macromolecules 41, 4452 - 4458 (2008), 2008 We study the effect of chargeable monomers on the conformation of dendrimers of low generation by computer simulations, employing bare Coulomb interactions. The presence of the latter leads to an increase in size of the dendrimer due to a combined effect of electrostatic repulsion and the presence of counterions within the dendrimer, and also enhances ...
arxiv +1 more source
Dendrimers as Pharmaceutical Excipients: Synthesis, Properties, Toxicity and Biomedical Applications
Materials, 2019 The European Medicines Agency (EMA) and the Current Good Manufacturing Practices (cGMP) in the United States of America, define excipient as the constituents of the pharmaceutical form other than the active ingredient, i.e., any component that is ...
Ana Santos, F. Veiga, A. Figueiras
semanticscholar +1 more source
Anomalous behavior of trapping in extended dendrimers with a perfect trap [PDF]
The Journal of Chemical Physics 143, 064901 (2015), 2015 Compact and extended dendrimers are two important classes of dendritic polymers. The impact of the underlying structure of compact dendrimers on dynamical processes has been much studied, yet the relation between the dynamical and structural properties of extended dendrimers remains not well understood.
arxiv +1 more source
Electrical switching and memory phenomena observed in redox-gradient dendrimer sandwich devices [PDF]
thin solid films 517 (2009) 3385-3388, 2005 We report on the fabrication of dendrimer sandwich devices with electrical switching and memory properties. The storage media is consisted of a redox-gradient dendrimer layer sandwiched in organic barrier thin films. The dendrimer layer acts as potential well where redox-state changes and consequent electrical transitions of the embedded dendrimer ...
arxiv +1 more source
ACS Catalysis, 2019 Hydrolysis of ammonia borane (AB) is a very convenient source of H2, but this reaction needs catalytic activation to become practical under ambient conditions.
Qi Wang +8 more
semanticscholar +1 more source
New Advances in General Biomedical Applications of PAMAM Dendrimers
Molecules, 2018 Dendrimers are nanoscopic compounds, which are monodispersed, and they are generally considered as homogeneous. PAMAM (polyamidoamine) was introduced in 1985, by Donald A. Tomalia, as a new class of polymers, named ‘starburst polymers’.
Renan Vinícius de Araújo +3 more
semanticscholar +1 more source
Porosity of Rigid Dendrimers in Bulk: Interdendrimer Interactions and Functionality as Key Factors
Nanomaterials, 2021 The porous structure of second- and third-generation polyphenylene-type dendrimers was investigated by adsorption of N2, Ar, and CO2 gases, scanning electron microscopy and small-angle X-ray spectroscopy.
Olga Serenko +5 more
doaj +1 more source
Structure of Carbon Nanotube-dendrimer composite [PDF]
, 2012 Using all atomistic molecular dynamics (MD) simulations we report the microscopic picture of the nanotube-dendrimer complex for PAMAM dendrimer of generation 2 to 4 and carbon nanotube of chirality (6,5). We find compact wrapping conformations of dendrimer onto the nanotube surface for all the three generations of PAMAM dendrimer.
arxiv +1 more source
Novel PH Sensitive Nanocarrier Agents Based on Citric Acid Dendrimers Containing Conjugated β-Cyclodextrins [PDF]
Advanced Pharmaceutical Bulletin, 2011 Introduction: In this work, the use of β-cyclodextrine (β-CD)-modified dendrimers as a nanocapsule with a biocompatible shell have studied. β-CD-modified dendrimers have designed and synthesized to enhance the loading capacity of the final dendrimers ...
Hassan Namazi, Yousef Toomari Hamrahloo
doaj
Phosphorus Dendrimers as Nanotools against Cancers
Molecules, 2020 This review concerns the use of dendrimers, especially of phosphorhydrazone dendrimers, against cancers. After the introduction, the review is organized in three main topics, depending on the role played by the phosphorus dendrimers against cancers: (i ...
Anne-Marie Caminade
doaj +1 more source