MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202511116145 A) filed by Sanjeev Sharma; Dr. Y. K. Sharma; Dr. Arvind Kumar; Dr. Pawan Sharma; Shashi Prakash Dwivedi; and Dr. Silpha Pahwa, Baghpat, Uttar Pradesh, on Nov. 24, 2025, for 'design a photonic crystal based biosensor for the detection of kidney diseases.'
Inventor(s) include Sanjeev Sharma; Dr. Y. K. Sharma; Dr. Arvind Kumar; Dr. Pawan Sharma; Shashi Prakash Dwivedi; Dr. Silpha Pahwa; and Dr. Y. K. Sharma.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "A two-dimensional photonic crystal-based biosensor is disclosed, comprising a 26 19 array of silicon rods on an air background, configured in hexagonal ring resonator format. The biosensor operates entirely with linear materials to enhance sensitivity and minimize nonlinearity. By exploiting the interference and scattering effects of defect silicon rods, the biosensor enables optical detection of glucose and creatinine concentrations through resonance wavelength shifts. The device exhibits high sensitivity and quality factor with compact dimensions suitable for optical integrated circuits, aiding in early diagnosis of kidney failure."
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