Results 111 to 120 of about 26,467 (310)
Self-assembly modulation in ionic PAMAM derivatives
Soft Matter, 2014 The self-assembly behaviour both in the bulk and water of a series of amphiphilic dendrimers constituted by second generation PAMAM ionically functionalized with different amounts of myristic acid is shown here. The number of acids in the dendrimer determines the liquid-crystal properties and the structural parameters of their supramolecular ...
Hernández-Ainsa, Silvia +5 more
openaire +4 more sources
Counterion Condensation and Effective Charge of PAMAM Dendrimers [PDF]
Polymers, 2011 PAMAM dendrimers are used as a model system to investigate the effects of counterion condensation and the effective charge for spherical polyelectrolytes. Because of their amino groups, PAMAM dendrimers are weak polyelectrolytes. Lowering the pH results in an increasing protonation of the amino groups which is monitored via the proton chemical shifts ...
Ute Böhme +3 more
openaire +2 more sources
Angewandte Chemie International Edition, EarlyView.An orthogonal click chemistry approach was used to synthesize a series of cationic surfactants. The results show that an optimal balance between positive charges and hydrophobicity is a crucial factor for the improvement of antibacterial properties.
Natalie Hanheiser +8 more
wiley +1 more source
Dendronized Mesoporous Silica Nanoparticles Provide an Internal Endosomal Escape Mechanism for Successful Cytosolic Drug Release [PDF]
arXiv, 2015 Mesoporous silica nanoparticles (MSNs) attract increasing interest in the field of gene and drug delivery due to their versatile features as a multifunctional drug delivery platform. Here, we describe poly(amidoamine) (PAMAM) dendron-functionalized MSNs that fulfill key prerequisites for a controllable intracellular drug release.
arxiv
Restoration of human tooth enamel
BMEMat, EarlyView.Human tooth enamel has remarkable properties but lacks self‐repair ability. Existing restorative materials cannot fully replicate enamel's microstructure and function, resulting in low restorative efficiency. This review summarizes the formation process and characteristics of enamel, and current restorative materials and future research directions are ...
Hanlin Liu +10 more
wiley +1 more source
Materials Letters: X, 2022 Herein, we report a feasible approach for preparation of crosslinked alginate (Alg) and poly(amido amine) (PAMAM) nanogels (Alg-PAMAM NGs), using a water-in-oil-in-water (w/o/w) double emulsion route, via strong electrostatic interactions between anionic
A. Córdoba +5 more
doaj
One-Step Synthesis of Graphene Oxide-Polyamidoamine Dendrimer Nanocomposite Hydrogels by Self-Assembly [PDF]
, 2016 Graphene oxide (GO)-polyamidoamine (PAMAM) dendrimer nanocomposite hydrogels were prepared through a one-step synthesis by mixing a GO suspension and a PAMAM solution at varying ratios of GO to PAMAM.
Chen, B., Piao, Y., Wu, T.
core +2 more sources
Polyethylene glycolated PAMAM dendrimers-Efavirenz conjugates
International Journal of Pharmaceutical Investigation, 2014 The preparation of novel PEGylated PAMAM (poly-amidoamine) dendrimers for delivery of anti-HIV drug Efavirenz is reported.About 5.0 G PAMAM dendrimers are prepared by ethylene diamine core via Michael addition by divergent method. PEGylation is done by polyethylene glycol 600 using epichlorhydrin as linker.
Palanirajan Vijayaraj Kumar +2 more
openaire +4 more sources
In situ biomimetic materials for dentin repair
BMEMat, EarlyView.This review primarily discusses the role and clinical application of key biomimetic materials for in situ dentin repair, providing a feasible foundation for future material and performance optimization in situ dentin regeneration. Abstract Dental defects, ranking among the most prevalent diseases globally, pose a serious threat to human health, with ...
Jingjing Deng +3 more
wiley +1 more source
Comparison of MRI properties between multimeric DOTAGA and DO3A gadolinium-dendron conjugates [PDF]
, 2019 The inherent lack of sensitivity of MRI needs the development of new Gd contrast agents in order to extend 20Hz,37%, the application of this technique to cellular imaging.
Boutry, Sébastien +13 more
core +3 more sources