Development of sustainable agri-biomass based lignin bio-polymer nanomaterials for sensing and wearable photo-induced coatings Shatabdi Paul, Neeraj S. Thakur, Sanjam Chandna, Jayeeta Bhaumik Center of Innovative and Applied Bioprocessing (CIAB), India Agri-biomass presents a significant concern because it is accumulated on agricultural land at a large scale. Burning stubble to get rid of this agricultural waste also poses a serious environmental issue. Such agri-biomass conversion into valuable and sustainable products achieves primary goals by first reducing environmental pollution and then managing with great profitability. Lignin, is as sustainable, bio inspired polymer, and safe source to fabricate nanomaterials and coating agents for use in biomedical applications. The sustainable lignin bio-polymer source utilized for generating coatings and nanoparticles for biomedical purposes. In order to synthesize lignin-based cadmium sulphide quantum dots (L@CdS QDs) for use in sensing and photo- inducedtreatment applications, we came up with a straightforward, environmentally friendly, one-pot method. Initially, such lignin-based QDs were utilized in the sensing of bacteria. We further investigated the potential of such quantum dots for photo-induced antibacterial activity because of their promising reactive oxygen production capabilities. Benefiting from the ease of synthesis and potential photo-induced antimicrobial therapy, the QDs were next employed to fabricate the wearable coatings. Importantly, such lignin-based QD-derived coatings were suitably utilized to eliminate from personal protective equipment and biomedical devices such as mask, gloves, scissors, etc. This research paves a smart way to design natural inspired biopolymer-based nanomaterials with the capability of disinfecting personal protective equipment and biomedical devices. Keywords: Lignin, bio-polymer, sensing, photo-induced, antimicrobial, therapy, coatings, wearable References 1. Paul, S., Thakur, N. S., Chandna, S., Reddy, Y. N., & Bhaumik, J. (2021). Development of a light activatable lignin nanosphere based spray coating for bioimaging and antimicrobial photodynamic therapy.Journal of Materials Chemistry B,9(6), 1592-1603. 2. Paul, S., Thakur, N. S., Chandna, S., Sagar, V., & Bhaumik, J. (202). Lignin-Based CdS Dots as Multifunctional Platforms for Sensing and Wearable Photodynamic Coatings.ACS Applied Nano Materials,5(2), 2748-2761.
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