MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641003507 A) filed by Christ University, Bangalore, Karnataka, on Jan. 13, for 'autofluorescent nanocellulose from plectranthus barbatus and its usage for the detection of pb(ii) ions in aqueous solutions.'
Inventor(s) include Joshua Jose; Aishwarya Joji Mathew; Elizabeth Gabriel; Ancilin James; and Vinod T. P.
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: "In this invention, a novel fluorescent nanocellulose from Plectranthus barbatus plant is synthesised. The fluorescence studies on the synthesised nanocellulose revealed its unique potential to be used as a sensor for Pb(II) ions. Autofluorescence in nanocellulose is an underexplored property in the field of sensing. Herein, optimum reaction conditions along with the choice of appropriate precursors was the reason for fluorescence in Plectranthus barbatus nanocellulose. The morphological, structural and fluorescent properties of fluorescent nanocellulose were studied usmg HR-TEM, XRD, DLS, UV and photoluminescence. The quantum yield of the Plectranthus barbatus fluorescent nanocellulose was found to be 4.43%. The fluorescent intensity of nanocellulose was selectively and significantly quenched in the presence ofPb(II) ions, which is used as a signal for the detection of this metal ion from aqueous solutions . The detection limit ofPb(II) was. calculatd as 2. 7 nM. This novel fluoresccent nanocellulose from Plectranthus barbatus is a unique discovery which exploits the autofluorescence of nanocellulose and can be employed as an efficient fluoroprobe for Pb(II) detection and its applications can be extended to biological, chemical and environmental fields."
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