MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641048117 A) filed by Pentakota Murali; Prof. Koona Ramji; Prof. V. V. S. Prasad; and Andhra University, Visakhapatnam, Andhra Pradesh, on April 15, for 'electrospun polyvinylpyrrolidone-barium titanate (pvp-bto) composite nanofibrous membrane with enhanced piezoelectric properties for advanced functional applications.'
Inventor(s) include Pentakota Murali; Prof. Koona Ramji; and Prof. V. V. S. Prasad.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "The present invention discloses a piezoelectric composite nanofibrous membrane comprising polyvinylpyrrolidone (PVP) polymer matrix (12 wt%) reinforced with nanocrystalline barium titanate (BaTiO3, BTO) nanopowder (average particle size 100 nm; 0.5 wt%), fabricated by a controlled electrospinning process. The precursor solution is prepared in ethanol by magnetic stirring at 70 C for 0.5 hours. Electrospinning at 12 kV applied voltage, 0.5 l/sec flow rate, 13 cm nozzle-to-collector distance, and one-hour deposition duration on a PET sheet substrate yields a composite nanofibrous membrane exhibiting a maximum piezoelectric constant (d33) of 51 pC/N. X-ray diffraction confirms the tetragonal phase of BTO, and FESEM analysis reveals a dense, fine, follicular morphology correlating with superior piezoelectric performance. The composite membrane is applicable in piezoelectric energy harvesters, sensors, transducers, and flexible electronics."
Disclaimer: Curated by HT Syndication.
