Other Innovations

Sanitary Pad and Diaper : Dr. Khan has invented of a jute-based low-cost, acceptable and biodegradable disposable sanitary pad to facilitate menstrual hygiene management (MHM) in Bangladesh. This is to design and develop a low cost, hygienic, environment friendly, 100% biodegradable and safe to use jute based disposable sanitary pad and test the innovative disposable pads among adult menstruating women, residing in households of slum in Dhaka Metropolitan City and assess the user acceptability, product feasibility, and consumer willingness to pay for it in future. This work is collaborating with ‘icddr, b’ and funded IsDB. Currently, the sanitary pads have gone through first phase of human trial. Based on the feedback, the pads have been modified to undergo the second phase among the urban slums women and girls. The pads are being distributed and their feedback will be collected in the upcoming six months. He also works for jute base superabsorbent with can be apply in child diaper, human diaper and agriculture to contain hugs amount of urine and water. Some reputed national and multinational companies have showed their interest for commercialize these products.

Contribution in Nanotechnology : Dr. Khan has developed high yield cellulose nano-crystal, cellulose nano-fiber, and microfibrilled cellulose both jute and cotton. This jute based nano-cellulose has applied in wound dressing material and prepared nanocomposite film and got promising results. Now, he wants to commercialize those products and relevant technology and also deal with "SHINSHU UNIVERSITY" for five years to collaborating with nanotechnology work.

Contribution in Textile Sector of Bangladesh: He has a great contribution to the textile sector in Bangladesh. He is working on the ‘Reduce’, ‘Reuse’ and ‘Recycle’ concept (3R) for sustainable management of textile waste. He has already developed a low water consuming textile dyeing technique which is now in field trial stage and pilot batches are running in Bangladesh also successfully established a salt free dyeing process: Pilot scale trial has been performed at textile industry (Echotex). In these techniques, most of the dye particles are absorbed by the fabric and the resulting effluent becomes significantly less toxic and can be reused for the dyeing purposes again. Besides, he has also successfully converted textile effluent to fertilizer using ionizing radiation. Field trial suggested that treated effluent showed no adverse effect on plant growth and nutrient value of the produces. He is working on separated Polyester, Spandex from cutting fabric wastage to make recycled Polyester, Spandex. After separating polyester and spandex from fabric either 100% cotton or 100% viscose are being trashed to make recycle yarn. That can be helped to reducing the use of virgin cotton. Carboxymethyl Cellulose is being synthesized from recycled cotton and made superabsorbent and bio-composite from that. Cellulose acetate, Cellulose carbamide and Lyocell is being tried to make from recycled cotton.

Contribution in Agriculture and Agro Economy :He has developed the agriculture sector by a natural resource to the alternative of harmful chemicals. Considering the growing need for increased production in the agricultural sector and resulting overuse of harmful hormones and chemicals, He has invented the environment as well as a human health-friendly natural plant growth promoter for rice, jute, spinach, tea, etc. from seaweeds and prawn shell (chitosan) waste using radiation technology. These growth promoters not only increase yield 30-40% but also decrease harvesting period which ensures better profits for the farmers. He has developed a low-cost edible food preservative to reduce postharvest losses and to improve the quality and extend shelf life of fresh and minimally processed produces. Due to the excellent film-forming ability and antimicrobial ability of the processed material, it is proved to be very effective at extending the shelf life of tropical fruits and vegetables.

Contribution in Biomedical Field :Dr. Khan has worked in many promising biomedical fields e.g., bone tissue engineering, drug delivery, membrane for wound, surgical suture, surgical gauze, artificial blood plasma extender etc. He has developed advanced wound dressing material from animal collagen (Gelatin). This product has achieved ethical certified from Dhaka medial burn and plastic surgery unit in 2010. Now, this invention deal with Incepta pharmaceutical company for commercialization.

Contribution of low-cost power generation :Dr. Khan has a great contribution to the research field of low-cost power generation. Sustainable, renewable, and environment-friendly power generation are the main concerns. Dr. Khan started to work on the natural dye-sensitized solar cell to generate low-cost electricity because silicon is harmful for environment. He extracted natural dye from locally available various flowers, fruits, vegetables, spices, etc. This project was funded by World Bank and he succeed in this project. Under a joint project of Bangladesh Atomic Energy Research Establishment and Infrastructural Development Company Limited, a group of researchers supervised by Dr. Khan was able to run some electronic devices such as calculator, digital clock, hygrometer, etc. through this dye-sensitized solar cell. Besides this, he is working with a new concept in making some changes in a lithium-sulfur battery to make them environment friendly by replacing sulfur with a new component. Dr. Khan dreams to fulfill the upcoming demand for electricity with the limited resources of a small but overpopulated country like Bangladesh by using green energy.

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Bangladesh Jute Mills corporation, Adamjee Court, 115-120
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