Press Release

Aeroplanes and machines use aluminium and magnesium alloys because of their strength and mechanical properties. However they need effective protection against rapid corrosion.

Researchers at International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Hyderabad, an autonomous R&D Centre of Department of Science and Technology (DST), have found that like halloysite and montmorillonite which are environmentally friendly clay minerals with nanotubular and layered structures can be applied on Aluminium and Magnesium improving their corrosion resistance. Thus the coatings made out of such clay minerals can make the materials and the machines made out of them last longer.

The study published in Journal of Magnesium alloys, Journal of Coatings Technology and Research and Journal of Alloys and Compounds have evaluated and compared the anticorrosive properties of Environmental friendly hexavalent-chrome-free, corrosion resistant coatings on Aluminium and Magnesium alloys using chemical nanotechnology.

During the service of components made from aluminium and magnesium alloys, when these surfaces get exposed to corrosive atmospheric conditions, they get corroded which results in the loss of material with time. Hence, they are required to be protected before there is a huge loss of material.

Conventionally, paints are applied to provide a barrier of protection against corrosion. However, when the paint layer is damaged, exposing the substrate surface, the substrate gets corroded even more quickly. A typical practice is to apply a conversion coating on the alloy surface following which, a primer is deposited followed by a final paint layer, which may or may not have a top coat, as shown in Figure 1.

Conventionally, hexavalent chromium-based conversion coatings (Cr6+) have so far been the most cost-effective and efficient self-repairing coatings among the many alternative systems that have been explored. However, due to their carcinogenic and toxic nature, use of hexavalent chrome-based conversion coatings is strictly being restricted and has been banned globally.

Organic-inorganic hybrid sol-gel based coatings are found to be potential replacements for chrome-based conversion coatings, both from the point of tuning the chemistry to achieve the desired property as well as from the point of amenability to deposit on large areas, as they have good adhesion with the substrate, intrinsic durability, flexibility, hardness to withstand mechanical stress.

Corrosion inhibitors are used as additives to sol-gel coatings in order to improve the corrosion protection property of sol-gel coatings. However, it has been observed that direct loading of corrosion inhibitors in the sol matrix enhanced the corrosion rate of the substrate due to deteriorating barrier property.

Recently, researchers have been studying self-healing or self-repairing coatings, as they have the ability to automatically repair any damage such as scratch caused by the external force, thereby preventing corrosion of the underlying substrate, without human intervention. Corrosion inhibitors/monomers are encapsulated into nano-containers and dispersed into matrix formulation containing a suitable catalyst and coatings from this are deposited over metal/alloy substrates.

When there is a damage to the coating, the nano-containers in the coating release the corrosion inhibitors/monomers into the matrix which leads to formation of passive layer due to the released corrosion inhibitors, thereby leading to self-repairing of the damage. 

Different types of encapsulating materials like porous nanoparticles, naturally occurring clay minerals like montmorillonite/bentonite or clay (halloysite), carbon nanotubes, layered materials have been found to be used for encapsulating/intercalating cationic and anionic corrosion inhibitors.

This newly identified method of encapsulating cationic corrosion inhibitors into clay nanotubes, identified by ARCI scientists can go a long way to make aeroplanes and machines made of aluminium and magnesium alloys more durable. 

Date:
Friday, March 13, 2020

Department of Science & Technology (DST), Government of India has invited proposals for supporting infrastructure facilities for post-graduate and higher research, such as the renovation of existing laboratory space and cold room, modernization of laboratories involved in PG and higher research, acquisition of essential equipment Departments, Centres, Schools and Colleges to pursue research activities more effectively and efficiently.

The support under the scheme “Fund for Improvement of S&T Infrastructure (FIST)” for the year 2020 could include up-gradation of existing facilities, networking & computational facilities, including software & databases, scientific & technical books, maintenance & refurbishing of existing and new facilities, etc. It is considered as complementary support for enabling Departments/ Centres/ Schools/ Colleges to pursue research activities more effectively and efficiently.

All Science and Engineering Departments having strong PG research programs which have existed for at least 3 years or more in universities and other higher educational institutions recognized or regulated by UGC,  AICTE, and MHRD/ State Education Department based, seeking support for the 1st time are invited to apply. Departments, Centres, or Schools already supported under the FIST Program subject to completion of ongoing projects are also invited.

The duration of support for each FIST Project will be for a period of 5 years, and the last date for the receipt of nominations is May 05, 2020. The scheme will be providing four-level support based on the type of University or Academic Institution, and the selection will be through a peer review mechanism and visit to the laboratories, if necessary.

The facilities provided under the Program are intended to support the efforts of the Department as a whole or a number of faculty members in the Department with synergy and focus of research, preferably aligned to National Missions and priorities. For further details, interested applicants can visit www.fist-dst.org.

Date:
Friday, March 13, 2020

Nominations have been invited for INAE Young Engineer Award 2020 to recognize outstanding achievements made by Young Engineers with strong potential for future professional growth in any branch of engineering.

Indian National Academy of Engineering (INAE) instituted the INAE Young Engineer Award in 1996 for promoting the spirit of excellence in engineering design and research, and technology development and transfer. 

Any citizen of India, not more than 35 years as on January 1, 2020, with a first tertiary degree in engineering or technology, is eligible. A nomination is valid for one year only. A candidate may be nominated for three times in total, subject to his or her age not exceeding 35 years.

The criteria for selection for the award are evidence of excellence in engineering research, product or process, design, technology development, and transfer. The specific contributions submitted for consideration of the award should have been carried out in India. The award shall consist of a cash prize of Rs.1 lakh and a citation. All INAE Young Engineer Awardees will also become INAE Young Associates on the conferment of the Award and shall continue to be “INAE Young Associates” till attaining 45 years of age. 

Nominations have been invited from young engineers working in academia, R&D laboratories, and industry. The sponsor must be either a Fellow of INAE or Head of the Organization or Institution where the nominee is working. The nominations are to be sent on A-4 size paper in the prescribed format, which may be downloaded from the INAE website (www.inae.in). 

The last date for the receipt of nominations is April 15, 2020.

Till date, 243 young engineers have been conferred this coveted award. Since 2013 onwards, these awardees have been inducted as INAE Young Associates and continue to be so till they attain the age of 45 years. 

Date:
Thursday, March 12, 2020

A new ‘In vivo Evaluation facility’ has been established at  Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Trivandrum, an autonomous institute under the Department of Science and Technology, to test medical devices on animals.

Dr. V.K. Saraswath, President, SCTIMST, inaugurated the facility on March 12th, 2020. The establishment of this new ‘In vivo Evaluation facility’ will augment the exiting efforts for indigenous development of medical devices in our country through supporting in-house development of such devices as well as by providing additional capacity to the Indian medical device industry and academia for their medical device development process.

The In vivo Evaluation Facility under the Division of In vivo Models & Testing is a state-of-the-art facility for housing large experimental animals having a capacity to house 40 adult pigs and 70 adult sheep in compliance with the recommendations and requirements of the regulatory agency. There is also space for minor medical procedures and acute pre and post-operative management of experimental animals.

 All the animal enclosures have automatic stainless steel drinkers for animals, and the sheep facility is installed with durable and impact-resistant polypropylene slatted floor. The building is designed to ensure the safe housing of animals, their management and movement, species segregation, and paddocks for grazing and exercise of sheep. The entire facility is pest and rodent-proof and also has an efficient system for managing the animal waste and effluent treatment facility to ensure least impact on the environment.

SCTIMST is a forefront runner National Institution in the field of medical device development using indigenous technology since the inception of laboratories in the Biomedical Technology (BMT) Wing in 1978 at the Satelmond Palace campus, Poojappura.

Animal evaluation of medical devices is an integral part of medical device development to establish functional safety prior to its clinical use in patients. The division of In vivo models and Testing in the BMT wing accomplishes this important task. Numerous high-risk medical devices such as the mechanical heart valve, oxygenator, vascular graft, hydrocephalus shunt, bone substitutes, dental materials, etc. have undergone animal studies in this facility to prove its safety and performance before it reached patients.

Currently, there is a resurgence of medical device development activities at SCTIMST under the Technical Research center (TRC), a programme funded by the Department of Science and Technology, Government of India. SCTIMST has recently launched nearly 40 research projects for the development of indigenous biomedical devices and biomaterials under TRC as part of the efforts by the Department of Science and Technology (DST) to fast-track work on indigenous medical devices development. In this program, dedicated teams are working on mission mode to develop technologies ready to be transferred to industry partners. The development of these medical devices requires animal studies to establish preclinical safety/performance.

Apart from its own activities, SCTIMST helps the domestic medical device industry in the development of indigenous medical devices by undertaking preclinical animal evaluations for their products since 2000. More than 15 Good Laboratory Practice (GLP)-compliant studies were performed for several Indian medical device companies. As SCTIMST is a significant center in India for doing such studies, there is a pressing demand for pre-clinical animal testing from Indian medical device manufacturers.

This new facility will enable SCTIMST to go for GLP certification by the Government of India, thereby enhancing the global acceptance of animal study data generated here.

Date:
Thursday, March 12, 2020

Researchers from Indian Institute of Geomagnetism (IIG), an autonomous institute under the Department of Science & Technology, have found the mighty Himalayas subside and move up depending on the seasonal changes in groundwater. Since Himalayas play a very important role in influencing climate in the Indian subcontinent, the study funded by DST will help in understanding how hydrology affects climate.

The Himalayan foothills and the Indo-Gangetic plain are sinking because its contiguous areas are rising due to tectonic activity associated with landmass movement or continental drift. The new study published in the Journal of Geophysical Research shows that subsidence and uplift are found to be associated with seasonal changes in groundwater, apart from the normal, common reasons. Water acts as a lubricating agent, and hence when there is water in the dry season, the rate of slip of the fault in this region is reduced.

Nobody till now has looked at the rising Himalayas from a hydrological standpoint. Ajish Saji, working towards his Ph.D. under Prof Sunil Sukumaran, has looked at this phenomenon through this innovative prism. The water storage and surface load variations are quite tricky to quantify through the application of extant global models.

In the Himalaya, seasonal water from glaciers, as well as monsoon precipitation, plays a key role in the deformation of the crust and the seismicity associated with it. The subsidence rate is associated with groundwater consumption.

The researchers have made the combined use of Global Positioning System(GPS) and Gravity Recovery And Climate Experiment (GRACE) data, which has made it possible for them to quantify the variations of hydrologic mass. The GRACE satellites, launched by the US in 2002, monitor changes in water and snow stores on the continents. This made it possible for the IIG team to study terrestrial hydrology.

According to the researchers, the combined GPS and GRACE data suggest a 12% reduction in the rate of the subsurface slip. This slip refers to how fast the fault is slipping relative to the foot and hanging wall. The slip occurs at the Main Himalayan Thrust (MHT), due to hydrological variations and human activities, over which there is the periodic release of accumulated strain.

Date:
Thursday, March 12, 2020

Scientists from the International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Hyderabad, an autonomous institution under the Department of Science and Technology (DST), have developed a cost-effective solar receiver tube technology for industrial process heat applications. 

The receiver tube technology developed by the ARCI team efficiently absorbs solar radiation and converts it into heat for the targeted applications, specially in industries. It exhibits high corrosion resistance suitable for Indian weather conditions.

Industries are one of the biggest consumers of energy. Recently, Indian industries have shown interest to exploit renewable energies, especially solar energy, due to their inherent advantages (economic and environmental-friendly aspects). In this regard, Concentrating Solar Thermal (CST) technologies provide a viable solution to meet the demands on industrial process heat (≤ 250 °C) of a majority of industrial processes.

The solar receiver tube is one of the key components in the CST technology. Currently, Indian CST plant developers are importing the high-end evacuated CSP receivers for CST applications. This has become a choking point for the commercialization of CST technology. 

In this regard, scientists from ARCI have developed a cost-effective wet chemical process to prepare absorber coating on stainless steel tubes suitable for industrial process heat applications.  The receiver tube achieved around 93 % absorptance (effectiveness in absorbing radiant energy, It is the ratio of the absorbed to the incident radiant power) and around 14 % emittance (amount of light, emitted by an area of the surface of a radiating body) along with good thermal stability and high corrosion resistance. The absorber coating has been successfully validated for heat gain and heat loss studies in a testing facility established at ARCI. 

Two patent applications have been filed for this technology, and an MoU has been signed with M/s. Greenera Energy India Private Limited for technology transfer, which plans to mass-produce the solar receiver tube for wider market absorption.

Date:
Thursday, March 12, 2020

Advanced Research Centre for Powder Metallurgy & New Materials (ARCI), an autonomous institute of Department of Science & Technology (DST) celebrated International Women’s Day (IWD) while highlighting the trend of overall increase in extramural research funding for Women Scientists from 13% in the year 2000 to 29% in the year 2015.

Dr. G. Padmanabham, Director, ARCI, said that increase in extramural research funding to women scientists was a healthy trend, and many efforts were underway, such as being part of Athena SWAN (Scientific Women's Academic Network) initiated in the UK for learning from the best practices in this direction.  He also assured on all possible support at ARCI in increasing the equity of Women Scientists in their endeavors and success.

The IWD programme was organised by the Internal Complaints Committee of ARCI. Director, ARCI, in his address, focussed on the importance of gender diversity, which enhances the innovation and overall output in any organizational environment.  He said that the goal is to have equal opportunity and responsibility for both women and men, and several initiatives at different levels are being taken by the government and other relevant agencies world over.

“This goal of equality can be achieved by involving more and more women in various walks of life. This has also has increased in the recent past with women taking the lead in sectors like services, science and technology, business and so on,” he said.  He mentioned about initiatives of DST like Women Scientist Scheme, Knowledge Involvement in Research Advancement through Nurturing (KIRAN), and so on. KIRAN is addressing various issues related with women scientists lie unemployment, relocation, and so on.

Prof. Gita Sharma, Director, R&D at Tapadia Diagnostics, Hyderabad, a distinguished scientist and biotechnologist having expertise in virology, gene cloning, and molecular biology, was the Chief Guest for the occasion. She served as a Professor in the Department of Microbiology in Osmania University for 29 years as well as a founder Scientist in Shantha Biotech, Hyderabad, a well-known company in the field of biotechnology. She developed 16 products based on genetically engineered proteins to be used as a medicine or vaccines, of which six have been commercialized.

Prof. Gita delivered a motivational talk titled “Women Technopreneurs and Enabling Policies.” She narrated her story of becoming an entrepreneur from a scientist and a teacher. She also emphasised on the qualities required by a scientist to build a career as a technopreneur. She encouraged young researchers to do translational research, which contributes to the Nation’s economics. Her journey from scientist and professor to an Entrepreneur profoundly inspired the researchers and staff at ARCI.  

Date:
Wednesday, March 11, 2020

A few years ago, Dr Gaganpreet was a Post-Doctoral fellow and worked as Scientist at INST Mohali for some time with limited scope for independent research. But working on a global environmental concern has always remained a passion for her. She had been passionate about it since her early days and always wanted to do research work in this field. However, opportunities were just not coming her way.

As her family was settled in Chandigarh, their responsibilities limited her movement to explore opportunities in science in other cities. She was confused and indecisive about her future. Moreover, she faced challenges in her scientific life due to family responsibilities and the indecisiveness, coupled with family responsibilities, did not let her focus on her research goals.

The Women Scientists Scheme by the Department of Science & Technology (DST) came to her rescue. She came to know about this programme, and it brought her hope and scientific life aspirations back. After becoming part of this programme, she concentrated on her research undeterred. She got a chance to pursue her research in the premier research Institute like Indian Institute of Science Education and Research, Mohali (IISER, Mohali).

The fellowship prepared her for upcoming faculty positions, and she is currently working with Post Graduate Government College for Girls, Chandigarh as Assistant Professor.

“I feel the biggest challenge in women’s scientific life is balancing career and family responsibilities. Combining career and family is not easy, and often compromises have to be made. When I was also caught in such a dilemma, DST’s Women Scientist Scheme provided me with the opportunity to accomplish my research goals,” she says.

“I consider myself fortunate that I am working on toxic gas sensing and water purification techniques. Since sensing toxic gases is crucial in monitoring and controlling environmental pollution as well as in medical and agricultural applications, I believe contribution in these areas will provide the novel methods for the detection of toxic gas molecules with ultrasensitive detection efficiency”, she says.

Dr Gaganpreet strongly believes that this fellowship made her more and confident, and the knowledge gained during this period has empowered her to continue the research.“Because of this programme, I am able to continue my research in the field of gas sensing and water desalination applications. This scheme not only enhanced my employability but also helped me look at things from a different perspective,” she added.

My association with IISER Mohali has provided the resource and healthy environment to do research and my Project Mentor, Dr P. Balanarayan, has been a great help with his insightful discussions, guidance and suggestions. He has been extremely supportive and has given me the freedom to explore different areas,” she added.

“The outcomes of my DST research project will expand enormously the fundamental knowledge of phosphorus-based materials and will open the way to novel applications in sensing areas, Dr Gaganpreet mentioned.

Coming to this point has been a challenge, and she pointed out that she has been able to achieve it by being efficient, selective and flexible.

“Women should believe in themselves and be convinced that all they do matter a lot for science and society. They should be open, realistic and accept all the challenges coming their way. They should appreciate the exemplary courage of eminent women scientists who had overcome several hurdles to contribute to science. If some have done it, then we can do it too. Ultimately, this is your life, and only you can make the difference,” she pointed out.

Date:
Wednesday, March 11, 2020

Scientists at Agharkar Research Institute (ARI), Pune, an autonomous institute under the Department of Science & Technology, have isolated 45 different strains of methanotrophic bacteria which have been found to be capable of reducing methane emissions from rice plants.

Methanotrophs metabolise and convert methane into carbon-di-oxide. They can effectively reduce the emission of methane, which is the second most important greenhouse gas (GHG) and 26 times more potent as compared to carbon-di-oxide.  In rice fields, methanotrophs are active near the roots or soil-water interfaces.

Dr. Monali Rahalkar, Scientist from Bioenergy Group, ARI, and her team working on methanotrophs, have enriched, isolated, and cultivated the 45 different strains of methanotrophs and created the first indigenous methanotroph culture. In their work published in Antonie van Leeuwenhoek, an International Journal of General and Molecular Microbiology, they isolated indigenous methanotrophs from Western and Southern India, mainly from rice field soils and freshwater mud and have documented two novel genera and six novel species of methanotrophs from rice fields in Western India. In pot trials, some of the strains were used as bio-inoculants in rice plants.

The team found that there was a decrease in methane emissions in inoculated plants with a positive or neutral effect on the growth of the rice. This could lead to the development of microbial inoculants for methane mitigation in rice.

Rice fields are human-made wetlands and are waterlogged for a considerable period. Anaerobic degradation of organic matter results in the generation of methane. Rice fields contribute to nearly 10% of global methane emissions. Very few studies in the world have focused on methanotrophs from tropical wetlands or tropical rice fields.

Before scientists at ARI started their studies, practically no cultures of indigenously isolated methanotrophs from India were available. Native and relevant methanotrophs isolated from rice fields can be excellent models to understand the effect of various factors on methane mitigation. Ammonium fertilizers, increasing temperatures (due to global warming) are some of the important factors which the team plans to study in the future. 

Besides methane mitigation studies, methanotrophs can also be used in methane value addition (valorization) studies. Bio-methane generated from waste can be used by the methanotrophs and can be converted to value-added products such as single-cell proteins, carotenoids, biodiesel, and so on. The team is further working on methane valorization studies from the isolated methanotrophs. Such studies help reduce GHG emissions, especially anthropogenic or man-made emissions, which a pressing need in the age of global warming. 

Date:
Wednesday, March 11, 2020

Dr. Ratna Prabha was pursuing pursued her post-doc as a SERB National Post Doctoral Fellow when motherhood led to a career break.  

The WOS fellow since 2018 cracked the Agricultural Research Services (ARS) exam of the Indian Council of Agricultural Research (ICAR) recently. She secured AIR-1 in Bioinformatics subject, which has been included first time in ARS.

“After motherhood, pursuing a research career seemed tough, but DST Women Scientist Scheme (WOS) came to rescue and restructure me. It allowed me not only to raise my hopes to fulfill my research passion but also made me an independent researcher.  Because of this support, I became capable of cracking the ARS-2017 examination as First Ranker in Bioinformatics discipline,” Dr. Prabha pointed out.

The ‘Women Scientist Scheme’ WOS provides career opportunities to unemployed women scientists and technologists, especially those who had break in career, for pursuing research in frontier areas of Science and Engineering. There are three major components of the Women Scientist Scheme, namely, WOS-A, WOS-B and WOS-C.

“DST WOS has enabled me to access the funds for pursuing the research not only through the fellowship that minimized the burden of daily life but also by providing funds for supporting project activities for the beneficiaries. Timely disbursement of funds was also an important reason to handle the project smoothly,” Dr. Prabha elaborated.

“While working for the WOS project, I was exposed to fieldwork and worked for the research output and interaction with various stakeholders and beneficiaries, which were none other than the farmers, rural youth, and women. This has added to my confidence and developed me as an observational and analytical scientist. I am immensely satisfied that through the foundation of the DST-WOS, I am now positioned to do my best for the betterment of the society through the emerging field of Bioinformatics.” she added.

“When I got a call from DST for presentation, I told myself that I should now do my best to grab the fellowship. The day I received an offer letter, I was in cloud nine. Research was my passion, and I was determined to pursue it, and this was the main driving force that insisted me to chase my dream,” Dr. Prabha recalled.

 “Family or motherhood can't stop anyone from pursuing a research career if the interest level is intense. If we accept situations as they are and surrender, then we will not be able to live our dreams. There will be difficult situations, but it is in our hand to overcome them,” she added

“Women hold immense potential for all fields, including science and research. But they are not becoming available for research and development work due to various reasons, of which many are linked with the family responsibilities.” Dr. Prabha stressed.

She pointed out that women researchers must believe that they can strive for major research that matters in science and society in India. They need to create networks and find peer support through proper mentoring and should be open to accept challenges and extend help to others.

During her research career, she bagged the Young Scientist Award from Chhattisgarh Council of Science and Technology, GBPUAT, Pantnagar, and International Travel Grants from the University of Tokyo, Japan, and SERB, DST. Besides, she has edited and authored eight books from Springer Nature and has more than 35 research publications and 10 book chapters to her credit.  

Date:
Monday, March 9, 2020

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