Nanotechnology is the development and use of techniques to study physical phenomena and develop new devices and material structures in the physical size range of 1-100 nanometres (nm), where 1 nanometre is equal to one billionth of a meter. Nanotechnology impacts all areas of our lives. These include materials and manufacturing, electronics, computers, telecommunication and information technologies, medicine and health, the environment and energy storage, chemical and biological technologies and agriculture.
The impact of nanotechnology on the field of electronics is far reaching. Although advances in silicon technology continue to revolutionize micro/ nanoelectronics, there are cases where non-Si device and component technologies provide superior performance. With modern material growth techniques, it is possible to grow and fabricate multilayered nano-structures and devices comprising of different materials with nanoscale thickness. Further, nanotechnology-enabled sensors are providing new solutions in physical, chemical and biological sensing that enable increased detection sensitivity, microsystems integration capability and portability for wide variety of health safety and environmental assessments.
Ministry of Electronics and Information Technology (MeitY) has taken several major initiatives for the promotion of Nanoelectronics research and innovation in the country. Major Nanoelectronics Centres of international standards have been established at premier institutes in the country. The state-of-the-art nanofabrication facilities at these Centres have become very popular both in India and abroad. Also, the Indian Nanoelectronics Users Programme (INUP) initiated by MeitY is being implemented at Centre of Excellence in Nanoelectronics (CEN) at IISc and IIT Bombay and has provided a great opportunity for R&D community all over the country for accessing state of the art nanofabrication facilities for undertaking research and skill development in Nanoelectronics. About 400 researchers are being imparted hands-on training in Nanofabrication at these centres every year. The research activities have so far resulted in a large number of research publications and significant number of innovations for which patents have been filed.
Some of the technologies developed at the CENs have been licensed to a few start-up Indian companies in India. Apart from this, the CENs have worked closely with national laboratories for developing several technologies for strategic applications utilizing the facilities created under MeitY’s initiative. The centres have also started interactions with industry for developing new technologies and products for large scale manufacturing & commercialization. The focus of Nanotechnology Initiatives Division has been towards development of an eco-system for semiconductor manufacturing in India through cutting edge research Projects
On-going Projects
Completed Projects
Following are the thrust areas identified by the Working Group of Nanotechnology:
Capacity Building
Nanotechnology Programme has been concentrating mainly on following to make India a front runner in the field of Nanotechnology.
A major initiative has been taken to create the Nanoelectronics Centres at various places in India to provide access to professional expertise, training and development, supporting collaborations.
Centres of Excellence in Nanoelectronics - Phase I and Phase II: a joint project between IISc, Bangalore and IIT Bombay
Centre for Excellence in Nanoelectronics project (CEN) has been established at IISc and IIT-B with the state-of-the-art nanofabrication facilities of international standards providing a catalyst for ambitious research initiatives in area of Nanoelectronics. The project CEN Phase II is a natural extension of CEN and was initiated in January 2012 to be jointly implemented by IISc Bangalore and IIT Bombay to accelerate research and development activities in new areas of nanoelectronics, nano-materials and nano-structures and integrated sensor system, and to generate a critical mass of highly trained manpower to propel these areas.
CENs
Indian Nanoelectronics User Programme Phase I and Phase II (INUP Phase II) at IIT Bombay and IISc, Bangalore
A unique joint major project entitled "Indian Nanoelectronics Users Program (INUP)" was launched to make available the CEN facilities created at IISc and IIT-B to researchers from all over the country for experimental research using nanofabrication. The major highlights of the project include the following: Imparting a hands-on training in nanoelectronics, assistance in research by enabling execution of work of external users at these centres, collaborating with research teams from other Indian centres to develop joint programs in nanoelectronics, provide a platform to researchers in Nanoelectronics to come together and benefit from complimentary expertise and conduct regular workshops for a wider dissemination of knowledge in Nanoelectronics. In addition to this, human resources are being created in all the R&D projects under this programme.
INUP Phase II was initiated in March 2014 at the CENs of IISc Bangalore and IIT Bombay to continue to facilitate and support the generation of expertise and knowledge in Nanoelectronics through participation by external users in INUP and their utilization of the facilities established at the Centres of Excellence in Nanoelectronics (CEN) at IISc and IITB. The reach of INUP will be extended to a larger number of researchers through a variety of new and expanded initiatives for advanced training and research. Till date around 3000 manpower has been trained, 20 patents have been filed, 250 research papers have been published and 150 Ph.D thesis have been supported under the programme.
Research Initiative on Non-Silicon based Technologies for Nanofabrication and Nanoscale Devices at IIT Delhi
This project involves setting up of a nanofabrication facility at IIT Delhi for developing Nanofabrication processes and their use for making non-silicon nanoscale devices. The project also aims on building and demonstration of select device prototypes in specific research areas.
NRF, IIT Delhi
Centre for Excellence in Research and Development of Nanoelectronic Theranostic Devices at IIT Guwahati
The aim of the Centre is to develop facilities for fabrication and characterization of micro/nano electronic devices aiming applications in Theranostics (a combined terminology for therapeutics and diagnostics) with focus on the development of surface acoustic wave (SAW) devices, MEMS/NEMS prototypes, and FET devices applicable for (i) pathogen detection (ii) diagnostic tools for biochemical assays (iii) diseases such as pancreatitis (iv) markers for cancer diagnosis and (v) sensor for whole cell detection etc. Esophageal, hypo pharyngeal and oral cancers are common, probably due to the habit of consumption of betel-nut (Areca nut) and higher use of alkaline food, in the North East, India. The Centre will provide the new opportunities to the researchers of North Eastern region and will cater to the local needs by the development of low cost health and agriculture sensors.
Centre for Nanoelectromechanical Systems (NEMS) and Nanophotonics at IIT Madras
Under the project, a Centre for Nano-electromechanical Systems (NEMS) and Nanophotonics has been set-up. Centre is pursuing R&D to achieve the following Specific components/ devices / subsystems/ systems:
The aim of the project is to promote Nanotechnology in areas of health, food safety, communication and material science.
Nano Fabrication Prototyping Facilities for SMEs and Start-ups in the area of MEMS & NEMS at IIT Bombay
The main aim of the project is to set-up a Centre for Prototyping and Testing of Nano-Sensors and to provide a facility to fabricate and manufacture Nano-Scale devices by Incubator Companies, Industry participants, researchers at IIT Bombay & other academic institutions including other government agencies. Such a facility will enable these entities to take their products from research labs to the market. The project is expected to facilitate production of products for health care and environment monitoring.
NFP, IITB
Nano-metrology at National Physical Laboratory, New Delhi
Calibration facilities for the measurement of electrical parameters such as voltage, current, resistance and charge in nano range have been established to serve as a national facility in NPL, New Delhi.
Development of MBE Cluster Tools for the epitaxial growth at IIT Kharagpur
MBE cluster tool based epitaxial nano-semiconductor infrastructure facility has been established for high performance RF/Microwave compound semiconductor heterostructure nano-devices on silicon for common user access. This project concentrate on developing the Ge rich SiGe process on Si, Arsenide process (GaAs) on Si, Phosphide process (InP) on Si and Nitride process (GaN) on silicon.
MBE cluster tool at IIT Kharagpur
Major Research Output
A few of the technologies developed successfully at Centre for excellence IISC, IITB, IITM, IITD under the Nanotechnology Programme are:
Diabetes, Anaemia and Malnutrition, Kidney and Liver disease Monitoring system
Based on electrochemical biosensors research carried out at the Centre for Nano Science and Engineering (CeNSE), a Start-up company PathShodh Healthcare Pvt Ltd has been incubated at IISc Bangalore. PathShodh has introduced first of its kind handheld device with the capability to measure multiple biomarkers specifically targeting Diabetes and its complications, Kidney disease, Anemia and Liver related ailments. The product has already been deployed in the field and is currently going through ISO 13485 and CE certification.
PathShodh's existing platform technology, "anuPath (TM)", to measure multiple bio-markers is proposed to be redesigned and validated to test COVID-19. Since, there is no strip based test available for COVID-19 at present anywhere in the world, a disposable test strips utilizing a novel receptor chemistry to perform highly accurate and sensitive COVID-19 antibody (IgG and IgM) test is proposed. The test may be done with tiny finger prick blood sample in shorter time at substantially low cost lesser than ELISA kit. For more details visit: https://pathshodh.com/media.php
Portable Polymerase Chain Reaction (PCR) Platform
Under the NNetRA project funded by MeitY, a Polymerase Chain Reaction (PCR) System to detect blood related diseases has been developed by IISc to detect Malaria and other blood related diseases. The system uses PCR-Thermal Cyclers in conjunction with adapter chain and fluorescence reader unit. Technology for the same has been transferred to a Start-up Shanmukha Innovations Pvt. Ltd incubated at IISc for its commercialization.
This start-up would be developing portable molecular diagnostic lab for COVID-19 testing. Instead of existing RT-PCR for testing COVID-19, it uses PCR-Thermal Cyclers in conjunction with adapter chain and fluorescence reader unit, considered equivalent to that of gold standard technology namely RT-PCR. The system would enable shorter turn-around-time compared to 24-72 hours with central labs with capability of processing and testing larger number of samples/day/unit.
Portable PCR system
Gas Sensors
Under the NNetRA project of MeitY, Gas sensors (for multiple identified gases NO2, O2 and N2H4 and H2) have been developed by IISc Bangalore with the following deliverables:
Portable Imaging Flow Cytometer for Malaria Detection
Microfluidic chip with channels on PDMS/PC/PMMA, to detect the flow of PS beads/cells through the channels are used for flow cytometry system for blood cell counting of at least 20 L/min with integrated optical system consisting of Light Emitting Diode (LEDs) of nominal wavelength 633 nm and 488 nm with a power of 10-20 mW. Two prototypes have been developed using microfluidics technology, one on cell phone and another on the digital camera platform.
Soil moisture sensor
Two prototypes for soil moisture sensor developed and tested – one with Temperature pulse probe and second with electrochemical potential principle. Also a cantilever based soil moisture sensor system has been developed which has a wireless connectivity. Further work is continued on the instrumentation aspects of wireless sensor nodes for agricultural systems.
Explosive Vapour Sensor
Explosive Vapour Sensor using poly (3-hexylthiophene) and Cu-tetraphenyl-porphyrin composite based organic field effect transistor has been developed. This technology can detect vapours of explosives.
Gas Sensor Array for Environmental Pollution Monitoring
A 4 element Metal oxide gas sensor array chip has been developed to sense CO2 gas in the range of 350 ppm to 1000 ppm. The sensor consumes extremely low power of about 50mW for 4 sensors, and is selective against gases such as SO2, CO and NOx.
A low cost sensor platform for determining ionizing radiation using sensors based on organic semiconducting materials has been demonstrated
Health Care – Silicon Locket
A web enabled efficient and intelligent remote health care system for cardiac diagnostics entitled ‘Silicon Locket’ has been developed.
MEMS pressure sensor
Design, fabrication and testing of a Nanocrystalline silicon MEMS pressure sensor in the range of 1 mbar to 1 bar.
Neuroelectronics
A top down process has been developed to create transistors with nano needles on top of the gate oxide, to sense intracellular action potential. The process is capable of creating array of Nano needle Gated FETs (NGFETs).
Envirobat Wireless Sensor for Air Quality
A system prototype of wireless sensor for air quality has been developed for environmental monitoring with following capabilities:
Patents
About 70 patents have been filed under the projects sponsored by Nanotechnology Division. Some of the filed patents are as follows:
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