Related Experiment Video
Updated: Jul 27, 2026

12:00
Preparation and Characterization of SDF-1α-Chitosan-Dextran Sulfate Nanoparticles
Published on: January 22, 2015
[Radioprotective properties of the polysaccharide dextran sulfate]
Abstract:
It has been shown that a single intraperitoneal injection of dextran sulfate (molecular weight 500 000, 60 mg/kg) to (CBA X C57BL)F1 mice 1-3 days before irradiation in lethal doses, with the irradiation dosage amounting to 8.10(-3), 3.10(-3) and 8.10(-4) Gy/c, increases the animals' survival rate. The effect of dextran sulfate on the degree of postradiation changes in the blood leukocyte count and in the bone marrow karyocyte count depends on the interval between dextran sulfate injection and irradiation.
Related Concept Videos
Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
Other Unique Bacteria
Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic and are commonly found near the...

