MUMBAI, India, Feb. 27 -- Intellectual Property India has published a patent application (202621004116 A) filed by Dr. Kashinath Arjun Bogle; Ms. Arti Jagannath Rodge; Ms. Siddiqui Al Misbah Noori Siddique; Mr. Sohel Jakir Shaikh; Mr. Niraj Ramesh Koyalwar; Mr. Sushil Gajanan Jaiswal; and Dr. Rajeshwar Vishwanathrao Kshirsagar, Nanded, Maharashtra, on Jan. 15, for 'wearable power-free colorimetric patch device for real-time ammonia gas detection.'
Inventor(s) include Dr. Kashinath Arjun Bogle; Ms. Arti Jagannath Rodge; Ms. Siddiqui Al Misbah Noori Siddique; Mr. Sohel Jakir Shaikh; Mr. Niraj Ramesh Koyalwar; Mr. Sushil Gajanan Jaiswal; and Dr. Rajeshwar Vishwanathrao Kshirsagar.
The application for the patent was published on Feb. 27, under issue no. 09/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a wearable ammonia sensing patch device (100) for detecting ammonia gas, comprising a flexible substrate (102) for attachment to a human body or integration with personal protective equipment. The device (100) includes a sensing layer (104) with at least one ammonia-responsive metal salt (104A-1) retained on a portion of the flexible substrate (102). The polymer matrix (104A) retains the metal salt (104A-1) under wearable conditions while allowing diffusion of ammonia, and the sensing layer (104) undergoes a direct, visually perceptible, power-independent colorimetric change upon exposure to hazardous ammonia concentrations, with response time less than 30ms at ammonia concentrations of 5-100 ppm. The invention further provides a method (200) of manufacturing the device (100), including preparing (202) a polymer solution, incorporating (204) the metal salt, depositing (206) the sensing composition, and drying (208) to obtain a wearable, responsive ammonia sensing patch."
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