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Hydrogel Fibre: Future Material of Interest for Biomedical Applications

Journal of Textile Science and Technology 2019年第4期5卷 92-107页

作者： A. K. M. Ayatullah Hosne Asif Mahbubur Rahman priti sarker Md. Zayedul Hasan Debasree Paul Department of Textile Engineering Mawlana Bhashani Science and Technology University Tangail Bangladesh

Exploration on hydrogel fibres concerning about smart based application in the medical sector has stimulated great interests for the last couple of years due to its wide range of purposes that include actuators, artificial adhesives, transplantable tissue organs, cell scaffolds, cell therapeutics, wound healing, cartilage or bone regeneration. Nevertheless, recently hydrogel fibre based biomaterials have drawn great concentration for use in a wide variety of biomedical applications like the sustained release of drugs. This is due to the fact that, hydrogel fibers are biocompatible and their similarity about physical properties is in relation with natural tissue. This review article prescribes about the application of hydrogels with diversified prospects in tissue engineering, wound care dressings, soft tissue recovery and plastic surgery. As the products of hydrogels are composed with a group of polymeric materials, the hydrophilic network structure makes them competent for holding an immense quantity of water in their three-dimensional polymer network structure. A wide-ranging application of these products in modern industrial and environmental areas has already taken into account to be of prime importance. Inevitably, natural hydrogels right is now gradually replaced by synthetic types due to their larger amount of water absorption capacity, durability alongside with wide ranges of raw chemical resources.

关键词： Hydrogel Tissue Engineering Wound Dressing Soft Tissue Recovery Plastic Surgery

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Green Dyeing of Silk Fabric with Turmeric Powder Using Tamarind Seed Coat as Mordant

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Journal of Materials Science and Chemical Engineering 2020年第2期8卷 65-80页

作者： priti sarker A. K. M. Ayatullah Hosne Asif Mahbubur Rahman Md. Mujahidul Islam Khan Hridom Rahman Department of Textile Engineering Mawlana Bhashani Science and Technology University Santosh Tangail Bangladesh

The current study is aimed to explore the sustainable dyeing approach of silk fabric with turmeric powder using tannin as mordant extracted from tamarind seed coat. For that, tamarind seed coat tannin was extracted and applied as natural mordant alone and in combination with metal mordant namely copper sulphate for dyeing silk fabric with the extract of turmeric powder. Dyeing parameters such as temperature, time and mordant concentration were varying for optimizing the process. The color strength, color coordinates, color fastness to wash, perspiration, water and rubbing were evaluated for examining dyeing performance. Firstly, tannin was extracted from tamarind seed coat and applying on the silk fabric at 95°C temperature for 45 min by varying concentration. Among them 15 g/l shows better results. Some samples were mordanted with both 15 g/l extracted tannin and 0.5% copper sulphate solution. The mordanted samples were dyed with turmeric dye by varying the time and temperature. By analyzing the test results, the sample mordanted with extracted tannin showed high color strength and good fastness properties dyeing at 80°C for 60 min. The application of 0.5% copper sulphate mordant enhanced sustainable wash fastness properties.

关键词： Tamarind Seed Powder Tannin Natural Mordant Turmeric Powder Silk

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