The Indian Institute of Science (IISc) has patented a technology called "SaLSO" (Solvent-Assisted Layer Selective Opening) to tackle the growing problem of multi-layered plastics (MLPs) and synthetic textile waste. These materials have been notoriously difficult to recycle and are often referred to as "untouchables" in the recycling world.

MLPs are used extensively in packaging due to their barrier properties and durability, but their mixed composition makes them nearly impossible to recycle. Synthetic textile waste, particularly from polyester and nylon clothing, is also a major contributor to landfills and microplastic pollution. The researchers at IISc noted that MLPs have a market worth of over $168 billion, while the textile industry generates more than 92 million tonnes of waste each year, a significant portion of which is synthetic. Traditional recycling methods have struggled to keep up with the volume and complexity of these materials.

SaLSO builds upon the team's previous work, where it was successfully used on Polyurethane and Epoxy. The newly patented process effectively separates the individual components of plastic and textile waste, which then allows each material to be recovered and reused in high-value applications. According to the researchers, SaLSO is not only technically impressive but also environmentally sound, making it a potential game-changer in the field.

Other recent innovations from IISc include:

• A method to enhance recycled plastic quality by incorporating material from discarded PET bottles. This new material lasts longer, is more durable, can be reshaped and reused multiple times, and can be used in 3D printing applications.
• A new material that makes sand obsolete in the construction industry by storing carbon dioxide from industrial flue gas and using it in excavated soil and construction and demolition waste. The team created a 3-D printable material from stabilizing soil with cement, slag, and fly ash, which would significantly reduce the need for traditional cement and sand in mortar.
• A collaboration with Synopsys, Inc. to foster the next generation of the semiconductor workforce through the India Semiconductor Workforce Development Programme.
• A partnership with ZEISS in India to develop AI solutions for eye care.
• An agreement with the National Payments Corporation of India (NPCI) for joint research on blockchain and AI technology.
• A certification program in Micro and Nanoelectronics in collaboration with TalentSprint.

These innovations highlight IISc's commitment to finding sustainable solutions to pressing global challenges and contributing to India's technological advancement.