MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202541123898 A) filed by Saveetha Institute Of Medical And Technical Sciences, Chennai, Tamil Nadu, on Dec. 9, 2025, for 'rapid-imv disc: a rapid colorimetric disc-based detection system for indole,methyl red,and voges proskauer tests.'
Inventor(s) include Hein Freeda. J; A. S. Smiline Girija; and Deepak Nallaswamy Veeraiyan.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "The present invention "RAPID-IMV DISC: A Rapid Colorimetric Disc-Based Detection System for Indole, Methyl Red, and Voges-Proskauer Tests" is related to a rapid, disc-based biochemical diagnostic system for the identification and differentiation of bacterial species using modified versions of the traditional Indole, Methyl Red, and Voges-Proskauer (IMV) tests. The invention utilizes sterile filter paper discs impregnated with specific volumes of standard reagents, which are then air-dried and applied directly onto bacterial colonies grown on solid media. Upon application of a small bacterial sample, the discs exhibit immediate colour changes-yellow to pink for Indole-positive, light pink to dark red for Methyl Redpositive, and brown to peach for Voges-Proskauer-positive reactions-within 30 seconds to l minute. This system eliminates the need for broth cultures, extended incubation, or laboratory instruments, making it ideal for point-of-care diagnostics, veterinary screening, field investigations, and educational use. The invention provides a simple, low-cost, portable, and time-saving alternative to conventional biochemical testing methods."
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