Abstract Yttrium-doped ZnO nanoparticles were synthesized by co-precipitation method to investigate structural. optical and antibacterial properties. X-ray diffraction analysis confirms hexagonal (wurtzite) structure with average crystallite size between 16 and 30 nm. Optical energy band gap decreaseswith increasing Y-doping concentration. https://hollandscountryclothinges.shop/product-category/coffee-presses/