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Recent investigations have demonstrated that nickel ferrite nanoparticles and their derivatives have toxicity effects on bacterial cells. In this study, we have prepared nickel ferrite nanoparticles (Ni/NiFe 2 O 4 ) and nickel/nickel ferrite graphene oxide (Ni/NiFe 2 O 4 –GO) nanocomposite and evaluated their toxic effects on E. coli cells ATCC 25922. The prepared nanomaterials were characterized using X-ray diffraction, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, and vibrating sample magnetometry techniques. The toxicity was evaluated using variations in cell viability, cell morphology, protein degradation, and oxidative stress. Ni/NiFe 2 O 4 –GO nanocomposites likewise prompt oxidative stress proved by the age of reactive oxygen species (ROS) and exhaustion of antioxidant glutathione. This is the first report indicating that Ni/NiFe 2 O 4 –GO nanocomposite-initiated cell death in E. coli through ROS age and oxidative stress.

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Galois finite field arithmetic multipliers are supported by two-element multiplication of the finite body thereby reducing the result by a polynomial p(x) which is irreducible with degree m. Galois field (GF) multipliers have a variety of uses in communications, signal processing, and other fields. The verification methods of GF circuits are uncommon and confined to circuits of critical information sources and yields with realized piece locations. They also require data from the final polynomial P(x), which affects the execution of the final equipment. Here the authors introduce a math method that is based on a PC variable that easily verifies and figures out GF (2m) multipliers from the use of the initial level and compares with Vedic multiplier and Wallace tree multiplier. The technique relies on the parallel elimination of extraordinary final polynomial and proceeds in three phases: 1) decision of the yield bit – the situation is made; 2) decision of the info bit – the situation is made; and 3) the invariable polynomial used in the structure is segregated.

The inadequacies inherent in the existing cryptosystem have driven the development of exploit the benefits of cipher key characteristics and associated key generation tasks in cryptosystems for high-performance security systems. In this paper, cipher key-related issues that exists in conventional symmetric AES crypto system is considered as predominant issues and also discussed other problems such as lack of throughput rate, reliability and unified key management problems are considered and solved using appropriate hierarchical transformation measures. The inner stage pipelining is introduced over composite field based s-box transformation models to reduce the path delay. In addition to that, this work also includes some bit level masking technique for AES. The improved diffusion and confusion metrics of bit masking transformation model mitigates key management related issues. An extensive analysis of data rate proved the performance metrics of proposed AES model. And finally, FPGA implementation is carried out to validate the performance metrics in real time.