نتایج جستجو برای: polymeric nanoparticles
تعداد نتایج: 128111 فیلتر نتایج به سال:
Oxidative stress is caused predominantly by accumulation of hydrogen peroxide and distinguishes inflamed tissue from healthy tissue. Hydrogen peroxide could potentially be useful as a stimulus for targeted drug delivery to diseased tissue. However, current polymeric systems are not sensitive to biologically relevant concentrations of H(2)O(2) (50-100 μM). Here we report a new biocompatible poly...
Polymeric nanoparticles can prove beneficial in oncology as they sidestep limitations associated with traditional small-molecule pharmaceuticals. With respect to drug delivery, polymeric possess structural features that make them suitable...
Fluorescent polymeric assemblies and nanoparticles (NPs) of nanoscale dimensions have become a focus of intensive investigations during the past few decades due to combined advantages such as improved biocompatibility, water dispersibility, stimuli-responsiveness, facile integration into optical detection devices, and the ability of further functionalization. In addition, the chemical compositi...
Nanotheranostics have demonstrated the development of advanced platforms that can diagnose brain cancer at early stages, initiate first-line therapy, monitor it, and if needed, rapidly start subsequent treatments. In brain nanotheranostics, therapeutic as well as diagnostic entities are loaded in a single nanoplatform, which can be further developed as a clinical formulation for targeting vario...
Biodegradable polymeric nanoparticles have the potential to be safer alternatives to viruses for gene delivery; however, their use has been limited by poor efficacy in vivo. In this work, we synthesize and characterize polymeric gene delivery nanoparticles and evaluate their efficacy for DNA delivery of herpes simplex virus type I thymidine kinase (HSVtk) combined with the prodrug ganciclovir (...
the aim of the present study was to develop exemestane loaded polymeric nanoparticles for improved oral bioavailability of exemestane. exemestane loaded nanoparticles were prepared by solvent displacement method with eudragit rl 100 and eudragit l 100 as polymers and pluronic® f-68 as surfactant. the influence of various formulation factors (drug: polymer ratio and concentration of surfactant) ...
MAY/JUNE 2007 PHARMACEUTICAL ENGINEERING On-Line Exclusive 1 www.ispe.org/PE_Online_Exclusive ©C op yr ig ht IS PE 2 0 0 7 This article describes an investigation on the use of a combination therapy administered within polymeric nanoparticles in order to overcome Multiple Drug Resistance (MDR), one of the most challenging threats to survival in the battle against cancer. A Multi-Functional Poly...
We describe here light-regulated swelling and degradation features of polymeric nanoparticles that are produced using an inverse microemulsion polymerization method. We demonstrate the phototriggered release characteristics of the nanoparticles by sequestering protein molecules and releasing them using light as a trigger. Furthermore, the intracellular translocation of the nanoparticles, along ...
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