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Peer-Reviewed Publication
Nanoscale Adv2026August 27, 2026Journal Article

Green synthesis of wurtzite ZnO nanoparticles via Indigofera tinctoria stem extract: linking crystallinity with photocatalytic and biological performance.

Mirza Nusrat Sweety1, Shahin Sultana1, Md Ashraful Alam2, Fariha Chowdhury3, Anika Tasnim3, Shariful Islam4, Asma Shafiq Shathi5
1Fiber and Polymer Research Division, BCSIR Dhaka Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka-1205 Bangladesh shasultana@gmail.com.
2Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka-1205 Bangladesh.
3Biomedical and Toxicology Research Institute (BTRI), Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka-1205 Bangladesh.
4Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka-1205 Bangladesh.
5Pharmaceutical Sciences Research Division, BCSIR Dhaka Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka-1205 Bangladesh.
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Abstract

The green synthesis of ZnO nanoparticles has been reported through a simplified route using Indigofera tinctoria stem extract, utilised as a bio-reducing agent. ZnO with a hexagonal wurtzite structure and a 35.51 nm crystallite size was confirmed by diffraction peaks in the XRD pattern. The ZnO nanoparticles exhibit a hexagonal single phase (space group P63 mc), as determined by a Rietveld refinem…

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