Determination of Putrescine in Tiger Prawn Using an Amperometric Biosensor Based on Immobilization of Diamine Oxidase onto Ceria Nanospheres

An increase of putrescine content in tiger prawn can be related to the deterioration of its quality. Increase in putrescine consumption causes nausea, vomiting, diarrhea, allergy, and flushing in humans. To address this issue, a glassy carbon electrode modified with diamine oxidase on ceria nanoparticles was fabricated for rapid determination of putrescine in tiger prawn. Based on the amperometric response, calibrated models such as linear, Hill, and Michaelis–Menten functions were constructed. The best performing model was based on Hill analysis, yielding relative prediction error of 0.035, percentage recovery of 113.10, and root mean square error of cross validation of 0.083. All the three models were verified with extract of tiger prawn sample. Among the three models, only the amperometric biosensor based on Hill analysis showed acceptable recovery with low relative standard deviation in tiger prawn sample.     

Tamper Proofing Identification and Authenticated DICOM Image Transmission Using Wireless Channels and CR Network

Wireless Personal Communications - Digital transferring of medical images in a fraction of second has become inevitable in this internet era. Hence, it is very much essential and need of the time...     

Chaos triggered image encryption - a reconfigurable security solution

Recently, diverse types of chaotic image encryption algorithms have been explored to meet the high demands in realizing secured real time image sharing applications. In this context, to achieve high sensitivity and superior key space, a multiple chaotic map based image encryption algorithm has been proposed. The proposed algorithm employs three-stage permutation and diffusion to withstand several attacks and the same is modelled in reconfigurable platform namely Field Programmable Gate Array (FPGA). The comprehensive analysis is done with various parameters to exhibit the robustness of the proposed algorithm and its ability to withstand brute-force, differential and statistical attacks. The synthesized result demonstrates that the reconfigurable hardware architecture takes approximately 0.098 ms for encrypting an image of size 256 × 256. Further the resource utilization and timing analyzer results are reported.     

Indicator-based lightweight steganography on 32-bit RISC architectures for IoT security

Multimedia Tools and Applications - Embedded devices with highly constrained resources are emerging in numerous application areas which include wireless sensor networks, Radio-Frequency...