MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202621056395 A) filed by Parul University Parul Institute Of Applied Sciences; Dr. Shivani Pandya; Dr. Noble George; Dr. Harjeet Singh; and Abhishek Patil on May 04, 2026, for Amino Acid Functionalized Carbon Dots And The Method Of Preparation Thereof For Collecting Latent Fingerprints From Latex Surfaces.
Inventors include Dr. Shivani Pandya; Dr. Noble George; Dr. Harjeet Singh; and Abhishek Patil.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: Amino acid functionalized carbon dots and the method of preparation thereof for collecting latent fingerprints from latex surfaces This invention provides a novel chemical composition of fluorescent C-dots functionalized with amino acids (L-lysine or L-cysteine) and a single-step, non-invasive method for their preparation and application in forensic investigations. These C-dots are synthesized through a rapid microwave-assisted process using citric acid and the respective amino acid, followed by dialysis to obtain a stable, biocompatible product with a particle size of approximately 101nm and characteristic UV absorption peaks at 327nm. This invention introduces a universal dipping method specifically designed to enhance latent fingerprints on challenging, non-porous latex surfaces such as gloves, balloons, and condoms. Unlike traditional methods that may necessitate chemical pre-treatment or hazardous reagents, this process involves immersing the non-printed side of the latex material in an undiluted C-dots solution (40mg/mL), resulting in the immediate visualization of clear ridge patterns and detailed minutiae on the upper surface. The developed fingerprints exhibit high contrast and resolution under various light sources (white, orange, and green) and remain stable for long-term preservation of at least 45days under diverse environmental temperature conditions. Crucially, the non-destructive nature of this method preserves the chemical integrity of the specimen, allowing for subsequent DNA analysis. This cost-effective and user-friendly innovation serves as a significant advancement in forensic science for evidence collection on latex substrates.
Disclaimer: Curated by HT Syndication.
