نتایج جستجو برای: polyglycerol coated spions

تعداد نتایج: 47927  

Biomedical applications of superparamagnetic iron oxide nanoparticles (SPIONs) requiring precise control over their physical and magnetic properties, and proper surface treatment. Here we report a practical and effective electrochemical strategy for preparation of the polymer coated SPIONs. In this strategy, in situ polymer coating on the surface of SPIONs was achieved through electrodeposition...

Journal: :Journal of Biomedicine and Biotechnology 2007
Mi Kyong Yoo In Yong Kim Eun Mi Kim Hwan-Jeong Jeong Chang-Moon Lee Yong Yeon Jeong Toshihiro Akaike Chong Su Cho

Our goal is to develop the functionalized superparamagnetic iron oxide nanoparticles (SPIONs) demonstrating the capacities to be delivered in liver specifically and to be dispersed in physiological environment stably. For this purpose, SPIONs were coated with polyvinylbenzyl-O-beta-D-galactopyranosyl-D-gluconamide (PVLA) having galactose moieties to be recognized by asialoglycoprotein receptors...

2016
Igor M Pongrac Ivan Pavičić Mirta Milić Lada Brkić Ahmed Michal Babič Daniel Horák Ivana Vinković Vrček Srećko Gajović

Biocompatibility, safety, and risk assessments of superparamagnetic iron oxide nanoparticles (SPIONs) are of the highest priority in researching their application in biomedicine. One improvement in the biological properties of SPIONs may be achieved by different functionalization and surface modifications. This study aims to investigate how a different surface functionalization of SPIONs - unco...

Journal: :The Journal of pharmacology and experimental therapeutics 2006
Feride Cengelli Dusica Maysinger Florianne Tschudi-Monnet Xavier Montet Claire Corot Alke Petri-Fink Heinrich Hofmann Lucienne Juillerat-Jeanneret

Super Paramagnetic Iron Oxide Nanoparticles (SPIONs) combined with magnetic resonance imaging (MRI) are under clinical evaluation to enhance detection of neurodegenerative diseases. A major improvement would be to link therapeutic drugs to the SPIONs to achieve targeted drug delivery, either at the cell surface or intracellularly, together with active disease detection, without inducing cell re...

2016
Kwang Sik Yu Meng Meng Lin Hyun-Ju Lee Ki-Sik Tae Bo-Sun Kang Je Hun Lee Nam Seob Lee Young Gil Jeong Seung-Yun Han Do Kyung Kim

The present report proposes a more rational hyaluronic acid (HA) conjugation protocol that can be used to modify the surface of the superparamagnetic iron oxide nanoparticles (SPIONs) by covalently binding the targeting molecules (HA) with glutamic acid as a molecular linker on peripheral surface of SPIONs. The synthesis of HA-Glutamic Acid (GA)@SPIONs was included oxidization of nanoparticle's...

2017
Agata Janikowska Jasmin Matuszak Stefan Lyer Eveline Schreiber Harald Unterweger Jan Zaloga Jürgen Groll Christoph Alexiou Iwona Cicha

Magnetic targeting utilises the properties of superparamagnetic iron oxide nanoparticles (SPIONs) to accumulate particles in specified vasculature regions under an external magnetic field. As the behaviour of circulating particles varies depending on nanoparticle characteristics, magnetic field strength and flow dynamics, we established an improved ex vivo model in order to estimate the magneti...

2017
Johanna M Poller Jan Zaloga Eveline Schreiber Harald Unterweger Christina Janko Patricia Radon Dietmar Eberbeck Lutz Trahms Christoph Alexiou Ralf P Friedrich

Superparamagnetic iron oxide nanoparticles (SPIONs) are promising tools for the treatment of different diseases. Their magnetic properties enable therapies involving magnetic drug targeting (MDT), hyperthermia or imaging. Depending on the intended treatment, specific characteristics of SPIONs are required. While particles used for imaging should circulate for extended periods of time in the vas...

2017
Anna Niescioruk Dorota Nieciecka Anna K. Puszko Agata Królikowska Piotr Kosson Gerard Y. Perret Pawel Krysinski Aleksandra Misicka

Superparamagnetic iron oxide-based nanoparticles (SPIONs) are promising carriers as targeted drug delivery vehicles, because they can be guided to their target with the help of an external magnetic field. Functionalization of nanoparticles' surface with molecules, which bind with high affinity to receptors on target tissue significantly facilitates delivery of coated nanoparticles to their targ...

2016
Di Shi Gujie Mi Soumya Bhattacharya Suprabha Nayar Thomas J Webster

In the current study, an optimized in vitro blood-brain barrier (BBB) model was established using mouse brain endothelial cells (b.End3) and astrocytes (C8-D1A). Before measuring the permeability of superparamagnetic iron oxide nanoparticle (SPION) samples, the BBB was first examined and confirmed by an immunofluorescent stain and evaluating the transendothelial electrical resistance. After suc...

Journal: :Journal of nanoscience and nanotechnology 2014
Min Cheol Kim Bo-Sun Kang Youngjoo Sohn Ki-Sik Tae Hyun-Ju Lee Do Kyung Kim Yun Seung Chang

In this study, hybrid magnetofluorescent structures composed of organic moiety of poly(TMSMA-r-PEGMA) for biomolecules-resistant surfaces and methyl methacrylate for conjugation of europium complex inorganic moiety of magnetic nanoparticles are reported. Lanthanide complex of europium ion with 4,4,4-Trifluoro-1-(2-naphthyl)-1,3-butanedione (NTA) and trioctylphosphine oxide (TOPO)[Eu(NTA)3(TOPO)...

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