Analytical and Bioanalytical Electrochemistry is an international scientific journal published online by the Center of Excellence in Electrochemistry at the University of Tehran, Tehran, Iran. The journal was published quarterly from 2009 to 2011, bimonthly from 2011 to 2018, and has been published in at least eight issues per year since 2018. Analytical and Bioanalytical Electrochemistry - 16 9 2024 09 30 Unveiling The Multi Functionality of CeCuIn2O5 Nanoparticles: A Promising Approach For UV-Light Photocatalysis, Electrochemical Sensing and Antibacterial Applications 830 845 716157 10.22034/abec.2024.716157 EN Shivaswamy M B Department of Chemistry, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysuru, India-570 006, India 0009-0009-8081-5165 Nagendra Prasad H S Department of Chemistry, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysuru, India-570 006, India 0000-0002-8183-276X B. Manjappa Kiran Department of Chemistry, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung City 40704, Taiwan, Republic of China Madhushree S Department of Chemistry, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysuru, India-570 006, India Hemanth B S Department of Chemistry, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysuru, India-570 006, India Madhukar B S Department of Chemistry, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysuru, India-570 006, India Kavya R Department of Chemistry, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysuru, India-570 006, India Sangamesha M A Department of Chemistry, The National Institute of Engineering, Mysuru, India-570 00, India Anand A. P Ganesh Consultancy and Analytical Servies, Hebbal Industrial Area, Mysuru, India-570016, India Journal Article 2024 03 30 CeCuIn₂O₅ trimetallic oxide nanoparticles (CCI NPs) were synthesised in the current work and examined for antibacterial activity against Methicillin Resistant <em>Staphylococcus Aureus</em> (MRSA), photocatalytic degradation of malachite green (MG) and electrochemical sensing of sodium nitrite. The physicochemical characteristics of the CCI NPs were analyzed using XRD, SEM, EDX, UV-vis and DLS method which depicts the morphology, crystalline nature and particle size synthesised CCI NPs. With a linear range of 0.8-4.8mM, the glassy carbon electrode (GCE) modified CCI NPs demonstrated an outstanding electrochemical response for sodium nitrite (NaNO₂). In addition, the synthesized CCI NPs showed high photocatalytic activities for the degradation of MG dye in water. It indicates the CCI NPs material produces hydroxyl (^⋅OH) and superoxide (O₂⁻) radicals for MG degradation when exposed to UV light, also showed an efficiency of 89.6% towards the degradation of Malachite Green. Carried out the dose-dependent method to the standard antibiotic streptomycin at 10 g/disc (5, 7, 15, 20, 25 & 30) with a zone of inhibition (ZOI) of 25.27- 45.27±0.09 in mm CCI NPs showed excellent antibacterial activity against MRSA in a dose-dependent method. As a consequence, it was found that CCI NPs are an effective multifunctional material that can be scaled up for the quantification of NaNO₂, photocatalytic dye degradation of malachite green, and antibacterial activity against MRSA. https://www.abechem.com/article_716157_0891c767eb8fea78290d3bd823f7aa6e.pdf