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- Pulinā Sarkar, an electrical engineer and assistant professor at the Massachusetts Institute of Technology (MIT), is developing microscopic electronic devices that can be hybridized with living cells and...
- Sarkar faced significant hurdles in securing funding for her research.
- In 2022, after generating promising initial data with the cell-electronics hybrids, Sarkar's team submitted a proposal for the National Institutes of Health (NIH) Director's New Innovator Award.
MIT Engineer Pioneers Injectable Electronics for Brain Implants
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Pulinā Sarkar, an electrical engineer and assistant professor at the Massachusetts Institute of Technology (MIT), is developing microscopic electronic devices that can be hybridized with living cells and injected into the bloodstream. These cell-electronics hybrids are designed to travel through the circulatory system and self-implant in specific areas of the brain.This technology holds potential for targeted therapies and advanced neurological monitoring.
Overcoming Initial Skepticism
Sarkar faced significant hurdles in securing funding for her research. “In the first two years of working on this technology at MIT, we’ve got 35 grant proposals rejected in a row,” Sarkar recounts. Reviewers acknowledged the potential impact of the work but deemed it “impossible,” likening the concept to science fiction. However, after over six years of dedicated research, Sarkar and her team successfully demonstrated the feasibility of their approach.
Breakthrough Funding and Key Achievements
In 2022, after generating promising initial data with the cell-electronics hybrids, Sarkar’s team submitted a proposal for the National Institutes of Health (NIH) Director’s New Innovator Award. This marked the first time their work passed peer review, receiving what Sarkar described as “the highest impact score ever.” The NIH Director’s new Innovator Award supports early-career investigators who propose highly innovative research.
Addressing Fundamental Challenges
The high impact score stemmed from the technology’s ability to solve three critical challenges. The primary obstacle was creating functional electronic devices smaller than cells that could safely circulate within the bloodstream.Previous attempts focused on using magnetic particles guided by external magnetic fields, but Sarkar’s approach offers significant advantages.
“There is a difference between electronics and particles,” Sarkar explains. Electronics, specifically those built using Complementary Metal-Oxide-Semiconductor (CMOS) technology – the foundation of modern computer processors - can generate electrical power from light, similar to photovoltaic cells, and perform complex computations.this capability enables clever applications like advanced sensing. Magnetic particles, in contrast, are limited to cell stimulation.
CMOS technology allows for the creation of devices with significantly more functionality than simple particles.CMOS technology is a standard method for creating integrated circuits.
Implications and Future Directions
This technology opens doors to a new era of brain-computer interfaces and targeted neurological treatments. The ability to deliver functional electronics directly to specific brain regions via the bloodstream could revolutionize the treatment of conditions like Parkinson’s disease, Alzheimer’s disease, and spinal cord injuries. Further research will focus on refining the targeting mechanisms, ensuring long-term biocompatibility, and expanding the range of functionalities embedded within the cell-electronics hybrids.
The development also highlights the importance of perseverance in scientific research. Sarkar’s story demonstrates that even seemingly “impossible” ideas can be realized with dedication and innovative thinking.
