MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641025147 A) filed by Srm Institute Of Science And Technology; and Easwari Engineering College, Chennai, Tamil Nadu, on March 3, for 'shock-wave engineered 4-methylbenzoic acid crystals for enhanced photonic response: a scalable processing pathway for optical and bio-functional applications.'
Inventor(s) include Dr. M. Saravanan; and M. Keerthana.
The application for the patent was published on March 13, under issue no. 11/2026.
According to the abstract released by the Intellectual Property India: "Controlled molecular crystal modification by external stimuli is an effective method for multifunctional enhancement in organic materials. This research used 4-methylbenzoic acid (4MBA) single crystals as a model system to investigate how shock-wave exposure changed the crystals' structural, optical, electrical, and biological characteristics. Slowly cooling grown 4MBA single crystals were subjected to Mach 1.3 shock waves. A shock tube shattered paper diaphragms with pressurized air, resulting in brief high-pressure bursts. The crystals were exposed to shock exposures lasting about 2.5 ms and repeated every 2 s. XRD examined structural changes, while XPS assessed chemical bonds.Antibacterial, antifungal, and in vitro cytotoxicity tests were used to evaluate biological activity against HepG2 liver cancer cells. Shock-wave treatment resulted in considerable lattice deformation and unit cell volume reduction, confirming structural densification. This work establishes a flexible method for concurrently tuning structural, optical, electrical, and biological functions for sophisticated nonlinear optical and biomedical applications. It also provides the first systematic demonstration of shock wave-engineered 4MBA crystals."
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