https://journals.aijr.org/index.php/anr <p align="justify"><a title="Click for Journal homepage" href="https://doi.org/10.21467/anr" target="_blank" rel="noopener"><img style="float: right; padding-left: 15px; padding-right: 5px;" src="/public/site/images/aabahishti/ANR_Cover_Page.jpg" alt="ANR"></a> Advanced Nano Research (ANR) is a peer-reviewed, international and interdisciplinary open access research journal published by AIJR publisher (India). <em>Adv. Nan. Res.</em> focuses on all aspects of nanoscience and nanotechnology. This Journal will cover all interesting areas of nano research from basic aspects of nanoscience and nanoscale materials to practical applications of such materials.<br>Advanced Nano Research is registered with CrossRef with doi: 10.21467/anr having&nbsp;ISSN:&nbsp;2581-5164 [online].</p> AIJR Publisher en-US Advanced Nano Research 2581-5164 <div id="copyrightNotice"> <p>The author(s) retains full copyright of their article and grants non-exclusive publishing right to Advanced Nano Research and its publisher <a title="AIJR Publisher homepage" href="https://aijr.org/about/about-aijr/" target="_blank" rel="noopener">AIJR</a> (India). Author(s) can archive pre-print, post-print, and published version/PDF to any open access, institutional repository, social media, or personal website provided that Published source must be acknowledged with citation and link to publisher version.<br />Click <a title="Copyright Policy" href="https://aijr.org/about/policies/copyright/" target="_blank" rel="noopener">here</a> for more information on Copyright policy<br />Click <a title="Licensing Policy" href="https://journals.aijr.org/index.php/anr/about#licensing" target="_blank" rel="noopener">here</a> for more information on Licensing policy</p> </div> https://journals.aijr.org/index.php/anr/article/view/10076 <p>Zinc oxide (ZnO) is a multifunctional semiconductor nanomaterial that has attracted considerable attention due to its unique optical, electrical, piezoelectric, and catalytic properties. Its wide band gap (3.37 eV) and high exciton binding energy (60 meV) make it suitable for diverse applications in photocatalysis, sensing, optoelectronics, environmental remediation, and biomedicine. Recent advances in synthesis techniques have enabled precise control over the size, morphology, crystallinity, and surface characteristics of ZnO nanoparticles, significantly influencing their functional performance. This review summarizes recent developments in ZnO nanoparticle synthesis, characterization, and emerging applications. Conventional synthesis methods, including precipitation, hydrothermal, sol–gel, electrochemical, and microwave-assisted approaches, are discussed alongside environmentally friendly green synthesis strategies based on biological resources. Key characterization techniques such as XRD, FTIR, SEM, TEM, AFM, and UV–Visible spectroscopy are highlighted for their roles in evaluating structural, morphological, and optical properties. The review also highlights the expanding use of ZnO nanomaterials across a wide range of fields, including antibacterial and anticancer treatments, photocatalysis, sensing applications, environmental cleanup, and optoelectronic technologies. Furthermore, it examines key challenges such as toxicity concerns, reproducibility issues, and the difficulties associated with large-scale production.</p> Islam Uddin Copyright (c) 2026 Islam Uddin https://creativecommons.org/licenses/by-nc/4.0 2026-03-28 2026-03-28 9 1 1 16 10.21467/anr.9.1.1-16