Interpenetrating polymer network of cross-linked blend microspheres for controlled release Acebutolol HClP. Ramakrishna, B. Mallikarjuna, A. Chandra Babu, P. Sudhakar, K. Chowdoji Rao, M.C.S. Subha

Interpenetrating polymer network of cross-linked blend microspheres for controlled release Acebutolol HClP. Ramakrishna, B. Mallikarjuna, A. Chandra Babu, P. Sudhakar, K. Chowdoji Rao, M.C.S. Subha

Superparamagnetic iron-oxide particles (SPIO) are used in different ways as contrast agents for magnetic resonance imaging (MRI): Particles with high nonspecific uptake are required for unspecific labeling of phagocytic cells whereas those that target specific molecules need to have very low unspecific cellular uptake. We compared iron-oxide particles with different core materials (magnetite, m...

The aim of this work is to describe and characterize a new spray-drying procedure for the production of nasal powders as an alternative to the conventional freeze-drying method. Cyanocobalamin was chosen as the active ingredient and loaded into five different nonsoluble vehicles with high water absorption ability. Then these hydrated particles were suspended in methylene chloride and spray-drie...

Guinea pig cochlear blood flow was measured before and after systemic normovolemic hemodilution with high molecular weight dextran. Absolute determinations of blood flow (in the cochlea, brain, kidney and lung) were accomplished by use of radioactive-labeled (85Sr or 141Ce) microspheres. Relative measurements of the cochlear blood flow changes were made simultaneously by the use of a laser Dopp...

Interpenetrating polymer network of cross-linked blend microspheres for controlled release Acebutolol HClP. Ramakrishna, B. Mallikarjuna, A. Chandra Babu, P. Sudhakar, K. Chowdoji Rao, M.C.S. Subha

BACKGROUND The main treatments for cancers are still chemotherapy and radiotherapy for intermediate-stage cancer and terminal cancer. However, the therapeutic methods often result in a decreased neutrophilic granulocyte count and other side effects. In this study, in order to improve the neutrophilic granulocyte levels in the blood after radiotherapy and chemotherapy, we developed a sustained-r...

Dextran is a bacterial polysaccharide consisting essentially of -1,6 linked glucopyranoside residues with a small percentage of -1,3 linked residues. In the first part of the chapter we discuss methodologies to chemically modify dextran. Taking into account our previous work, we focus our attention in the oxidation of dextran and in the transesterification of dextran by enzymatic means. We disc...

Imunomicrospheres consist of hydrophilic cross-linked particles with antibodies bound to their surface. These particles find specific receptors on living or fixed cells and therefore can label cell sub-populations and the labelled cells can be observed by means of a scanning electron or light-microscope. To label . cells with polymeric particles, biocompatible microspheres are neded preferably ...

This experiment was conducted for evaluating the humoral immune responses induced by Poly Lactide-co-Glycolide Acid (PLGA) microspheres coupled inactivated Newcastle Disease Virus (NDV) vaccine in comparison to an ‘in-house’ prepared inactivated and a live commercial vaccine. PLG microparticles containing inactivated NDV were prepared by a double emulsion technique based on solvent evaporation ...