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Zakir Hussain

Bio: Zakir Hussain is an academic researcher from University of the Sciences. The author has contributed to research in topics: Liquid crystal & Materials science. The author has an hindex of 18, co-authored 102 publications receiving 1054 citations. Previous affiliations of Zakir Hussain include Sony Broadcast & Professional Research Laboratories & Max Planck Society.


Papers
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Journal ArticleDOI
TL;DR: It was found that the thermal stability of PVA as well as PVA/starch blend systems increased by the incorporation of GO where strong physical bonding between GO layers and PVA /starch blends is assumed to cause thermal barrier effects.

147 citations

Journal ArticleDOI
TL;DR: The results suggest that medicinal plants of Islamabad and the Murree region of Pakistan may be potential natural resources for antidiabetic compounds.
Abstract: In vitro testing of the extracts of medicinal plants collected from Islamabad and the Murree region on insulin secretagogue activity was carried out. Dried ethanol extracts of all plants (ZH1-ZH19) were dissolved in ethanol and DMSO, and tested at various concentrations (between 1 and 40 microg/mL) for insulin release from INS-1 cells in the presence of 5.5 mM glucose. Glibenclamide was used as a control. Promising insulin secretagogue activity in various plant extracts at 1, 10, 20 and 40 microg/mL was found, while in some cases a decrease in insulin secretion was also observed. Artemisia roxburghiana, Salvia coccinia and Monstera deliciosa showed insulin secretagogue activity at 1 microg/mL (p < 0.05) while Abies pindrow, Centaurea iberica and Euphorbia helioscopia were active at 10 microg/mL (p < 0.05). Extracts of Bauhinia variegata and Bergenia himalacia showed effects at 20 microg/mL (p < 0.05), and Taraxacum officinale and Viburnum foetens at 40 microg/mL (p < 0.05). Insulin secretagogue activity could not be detected in the extracts of Adhatoda vasica, Cassia fistula, Chrysanthemum leucanthemum, Morus alba, Plectranthus rugosus, Peganum harmala and Olea ferruginea. The results suggest that medicinal plants of Islamabad and the Murree region of Pakistan may be potential natural resources for antidiabetic compounds.

100 citations

Journal ArticleDOI
TL;DR: In this article, the electrochemical oxidation of methanol is studied on NiO-based MOFs and its composites with reduced graphene oxides through hydrothermal method and the as-prepared materials were characterized by SEM, EDX, XRD, FTIR and Raman IR for their morphological and structural properties.

96 citations

Book ChapterDOI
01 Jan 2017
TL;DR: Alginates, ulvans, carrageenans, fucoidans, and chitin have numerous industrial, especially pharmaceutical and biomedical, applications with rapidly increasing usage and commercial value.
Abstract: Algal polysaccharides are obtained from algae. Marine algae contain high amount of polysaccharides including mucopolysaccharides, cell wall–structured, and storage polysaccharides. Polysaccharides content in some seaweed species ranges from 4% to 76% of their total dry weight. Highest polysaccharide contents are found in species such as Ulva, Ascophyllum, Palmaria, and Porphyra. Polysaccharides obtained from algae are critically important for industrial and nutritional purposes. Various industrial applications include their use as thickeners, stabilizers, emulsifiers, feed, beverages, food, pharmaceuticals, etc. From nutrition point of view, seaweeds are low in calories and lipid content but high in indigestible carbohydrate content which is good for the intestine. Alginates, ulvans, carrageenans, fucoidans, and chitin have numerous industrial, especially pharmaceutical and biomedical, applications with rapidly increasing usage and commercial value.

78 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of both water and methanol solvents on the extraction process and reduction of precursor salt to NPs has been studied and reported, and the ultimate tensile strength of the hydrogel membranes with 50 ppm Ag NPs was found to be highest among all the compositions while swelling tendency of the membranes increased with increase in the NPs concentrations.

73 citations


Cited by
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Journal ArticleDOI
TL;DR: In this article, the authors present the past and current efforts with a brief description on the featured properties of hydrogel membranes fabricated from biopolymers and synthetic ones for wound dressing applications.

1,059 citations

Journal ArticleDOI
TL;DR: Flavonoids are a family of plant-derived compounds with potentially exploitable activities, including direct antibacterial activity, synergism with antibiotics, and suppression of bacterial virulence, and recent advances towards understanding these properties are described.

985 citations