STUDIES ON BIOPOLYMER-BASED NANOCOMPOSITES AND THEIR APPLICATIONS

Abstract

This research focusses on the development of carboxymethyl tamarind kernel gum modified metal nanocomposites. The scientific literature on the synthesized metal and metallic oxide biopolymer nanocomposite used for antibacterial, antifungal, antioxidant, biosensor antifouling, and organic/inorganic contaminant removal from wastewater biosensor activity. The experimental methods used to carry out the research work are discussed in the thesis, which includes information on the materials utilized, approved by the research, and the descriptions and parameters of several characterization techniques XRD, FTIR, HRTEM, FESEM, TGA, DLS, UV. employed to fulfil the research effort's goal. In seven chapters, the complete thesis is summarized. The thesis's first chapter provides a brief overview of the study work's contemporary scientific significance, as well as the thesis's objective. It also summarizes the scientific literature on the synthesized metal and metallic oxide biopolymer nanocomposite used for antibacterial, antifungal, antioxidant, biosensor, antifouling, and organic/inorganic contaminant removal from wastewater. Study Chapter second of the thesis discusses the experimental techniques used to conduct the research work. It also provides information on the materials used, approved for the research, and the descriptions and parameters of a number of characterization techniques used to achieve the objectives of the research effort. Study Chapter 3 explains the purpose and parameters of the research that was done for this thesis. Chapter four. The use of carboxymethyl tamarind kernel Gum/iron oxide nanocomposites in liquid ammonia sensors and antibacterial activity has been developed and characterised in study These Nano composites exhibited excellent antibacterial activity against both Enterococcus faecalis and hence can be considered for applications in antibacterial textiles for personal and hospital uses. The sensing properties of the synthesized nanocomposite solution across rising ammonia concentrations in the range of 1–100 ppm by observing the changes in SPR situations and magnitude with a UV-Visible Spectrophotometer have been notified The synthesis and characterization of carboxymethyl tamarind kernel gum/ZnO nanocomposites, as well as their utilisation in chromium metal removal and antifungal activities, are covered in Chapter five. The removal of hexavalent chromium ions from water was studied in relation to pH, concentration, time, and amount of adsorbent. Compared to other biopolymers with zinc oxide modification, carboxymethyl tamarind kernel gum/zinc oxide nanocomposites were found to be more effective adsorbents for Cr (VI) ions. Furthermore, we utilised the CMTKG/ZnO for antifungal activities. The synthesis and characterization of carboxymethyl tamarind kernel gum nanoparticles and their antioxidant properties are discussed in this Chapter six. The antioxidant capabilities of the produced CMTKG nanoparticles composites were demonstrated by a radical scavenging model system. All of the outcomes were perfectly matched, just as they had been in the literature. CMTKG nanoparticles created in this manner could be employed as antioxidants. The chapter seven summarizes the entire research study as well as the research's prospects and includes the publications out of the thesis.