University of Kashan Journal of Nanostructures 2251-7871 13 4 2023 10 01 Synthesis and Characterization of New Carboxymethylcellulose Coated Ag Nanoparticle as Antibacterial 1126 1132 114569 10.22052/JNS.2023.04.020 EN Hadeel Salih Mahdi Department of Science, College of Basic Education, University of Misan, Misan, Iraq Saif M. Alshrefi Department of Laser Physics, College of Science for Women, University of Babylon, Iraq Mohammed Ali Mutar Department of chemistry, College of Sciences, University of Al-Qadisiyah, Iraq Haidar Gazy Lazim Department of Science, College of Basic Education, University of Misan, Misan, Iraq Journal Article 2023 07 17 Carboxy methyl cellulose has been used to coat Ag nanoparticles to synthesized Nano solutions. FTIR and SEM methods were used to analyze the physicochemical characteristics of Nano solutions as they had been synthesized. Due to their use in medical applications, silver nanoparticles are discovered to exhibit potent antibacterial activity. By manipulating the synthetic silver nanoparticles’ size and form, antibacterial activity can be controlled. The synthetic chemicals’ antimicrobial properties carboxymethylcellulose coated (Ag) nanoparticle was also screened on various bacteria. The prepared polymer shows excellent antimicrobial activities. The findings demonstrated that together “Gram-positive as well as Gram-negative bacteria” may thrive without being hampered by nanoparticles. Compared to Gram-negative bacteria, Gram-positive bacteria were highly responsive to biogenic NPs. This is consistent with the finding that gram-positive bacteria are more vulnerable to Ag NPs coated with biogenic polymer (CMC) than gram-negative bacteria. As a consequence, it might be challenging to evaluate bacterial exposure to NPs.  https://jns.kashanu.ac.ir/article_114569_2d1c6dbdecf8c09655b3a7c4d77211bd.pdf