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48 articles for “crosslinking”
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Facile Fabrication and Characterization of Novel Sterculia Gum–graft-poly(n-isopropylacrylamide-co-acrylamide) Hydrogel for Efficient Removal of Cationic Dyes from Aqueous Solution
Abstract: Water is indispensable component of life. Contamination of water is a severe problem that affects human health, aquatic vegetation, and fauna. Aside from various effluents, a variety of cationic dyes generated by industrial effluents contributes significantly to water contamination. In this study, a sterculia gum graft-poly(n-isopropylacrylamide-co-acrylamide) hydrogel was made using a graft copolymerization technique with N,N′-methylene-bis-acrylamide as a crosslinker, ammonium persulphate as an initiator, and tetramethylethylenediamine as an accelerator to …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 29–59 Read article
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Inter-satellite Optical Wireless Communication (IsOWC) System Design: A Study
Abstract: AbstractLaser communication links in space are attractive alternatives to present day microwave links. Space communication as employed in satellite to satellite link is traditionally performed using microwaves. High capacity inter-satellite communication crosslinks will permit more efficient and more reliable operation of future satellite systems. The mass, power consumption and size of optical transceiver module will be smaller than that of a microwave transceiver. On the other hand, inter-satellite communication is …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 1, 2018 · pp. 20–24 Read article
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Lipid Peroxidation in Postoperative Cases of Breast Carcinoma (Grade III)
Abstract: Breast cancer represents significant problem in the world. Oxidative modification of lipids is catalyzed by reactive oxygen species (ROS) which is known as lipid peroxidation (LPO); this changes the fluidity, permeability of membrane, cellular metabolic functions and causes derangement. Malondialdehyde (MDA) is a major end product and an index of LPO which crosslinks DNA, protein and nucleotides on the same and opposite strands. There are reports that LPO increased in …
Published in Research and Reviews: A Journal of Health Professions · Vol. 8, Issue 1, 2018 · pp. 16–22 Read article
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Electron beam irradiation studies of polyethylene maleic anhydride on their Chemical and Thermal properties.
Abstract: The electron beam (e-beam) irradiation effects on polyethylene maleic anhydride (MANPE) are investigated by spectroscopic and thermal methods. The MANPE irradiated with electron beam to a radiation dose of 30, 60 and 90 K Gy and the resultant changes in their chemical structure and thermal properties have been investigated by Electron spin resonance (ESR), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy …
Published in Journal of Polymer & Composites · Vol. 6, Issue 2, 2018 · pp. 17–30 Read article
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Chitosan-Based Polymer Coatings for Antimicrobial Catheter Surfaces
Abstract: Catheter-associated infections (CAIs) remain a major clinical challenge. Microbial adhesion and subsequent biofilm formation on catheter surfaces significantly reduce the effectiveness of antimicrobial therapy, resulting in prolonged hospitalization, increased healthcare costs, and higher patient morbidity. Consequently, the development of antimicrobial polymer coatings has emerged as an effective strategy for minimizing catheter-associated infections while improving device performance. Among the various biomaterials investigated, chitosan has attracted considerable attention owing to its intrinsic …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Variation in Activity of Lipase Immobilized on Chitosan and Alginate Nanoparticles by Changing Concentration of the Preparatory Reagents
Abstract: Chitosan and alginate nanoparticles were prepared by ionic gelation method. The concentrations of each of the preparatory reagents (for chitosan: acetic acid, chitosan, sodium sulphate, glutaraldehyde and for alginate: calcium chloride, alginate, glutaraldehyde) were altered to check their consequences. Lipase was chemically crosslinked to these nanoparticles. Enzymatic assay was carried out for every alteration separately. To visualize the changes in each reagent at every step a precise table is incorporated …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 7, Issue 3, 2017 · pp. 14–22 Read article
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Chitosan-conjugated GnRH Nanoparticles with AFM Appearance
Abstract: Nanotechnology can provide new tools for molecular and cellular biology, biotechnology, veterinary physiology, reproduction, detection of pathogens and many more. There are several areas such as science, engineering of agriculture, animal and food systems where nanotechnology could be applied. Application of nanotechnology can be employed in the development of sustained release systems of molecules such as hormones, vitamins, antibiotics, antioxidants and nucleic acids. Longer lasting surges in Gonadotropin hormone (GtH) …
Published in Research and Reviews : Journal of Veterinary Science and Technology · Vol. 8, Issue 3, 2019 · pp. 3–5 Read article
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Drug Delivery Systems and Innovations
Abstract: The aim of this study was to develop a controlled release system targeting antibiotic distribution to the stomach. The hydrogels were synthesized by utilizing chitosan, poly(acrylic acid) and poly(vinyl pyrrolidone) polymers cross linked with glutaraldehyde and N,N′-methylene bisacrylamide. Interpenetrating polymeric network (IPN) hydrogels were compare by varying the concentration of crosslinking agent (glutaraldehyde). The amount of chitosan, poly(acrylic acid), poly(vinyl pyrrolidone) and N, N’-methylenebisacrylamide were kept constant in all formulations. …
Published in Trends in Drug Delivery · Vol. 2, Issue 1, 2015 · pp. 10–20 Read article