Functionalized graphene oxide-based electrode material for the potentiometric detection of codeine phosphate in commercial cough syrups for forensic applications Ephrin S, Jebasingh Bhagavathsingh, Sneha Abraham, M Nesasudha, Doondi Kumar Janapala Scientific Reports, 2026 Abstract The current trend in the detection of forensic or banned drugs has attracted many researchers to the development of engineered nanoparticle-based sensor devices for the rapid detection of these drugs at affordable costs. Herein, we report the development of functionalized graphene oxide active nanosheets (GO-Bpb) for the detection of codeine phosphate in commercially available cough syrup using potentiometric and colorimetric methods. The active material was characterized for the successful intercalation by spectroscopic and microscopic techniques. The sensor strip was fabricated by spin-coating the active material onto Whatman filter paper, incorporating copper electrodes on both sides, with a Teflon separator. Upon dipping into the various concentrations of the test solutions, the variation in the voltage was measured due to the analyte interactions on the active material until the lowest possible concentration. For the colorimetric method, the stock solution of GO-Bpb vs. various concentrations of codeine was measured by UV-Vis spectroscopy for the quantification of the analyte at a lower concentration. It resulted in a limit of detection (LoD) of 0.0412 mg/mL. The cost-effective, reproducible strip-based detection paves the way to achieve a more sensitive and selective method with a LoD of 0.0018 mg/mL for the on-site detection of illicit drugs during crime scene investigation.
Efficient Multi-Task Learning in Multi-User Multiple Input Multiple Output Systems Integrated Orthogonal Frequency Division Multiplexing Systems: A Hybrid Amalgamated Convolutional Neural Network-Bidirectional Long Short-Term Memory Approach Krishnasamy Vijaipriya, Nesasudha Moses, Prawin Angel Michael Applied Science and Engineering Progress, 2026 Therefore, in today’s wireless communication systems and in particular, the Multi-User-Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing (MU-MIMO-OFDM) systems, channel estimation, the detection, and mitigation of the attack are important to ensure the safe operation of a system. Current approaches use distinct procedures for completing these jobs, and this causes high computational expenses, longer response times, and decreased performance of the system. In this work, a multi-task learning (MTL) framework is introduced to develop a new end-to-end deep learning solution of an Amalgamated Convolutional Neural Network (ACNN) for spatial feature extraction and a Bidirectional Long Short-Term Memory (Bi-LSTM) for temporal attack detection. The proposed system is effective in handling these tasks together because that would mean maximum efficiency and accuracy. To enhance the model’s efficiency, a Green Anaconda Optimization (GAO) algorithm is used to solve the multi-task loss function and enhance convergence rate and solution quality. The presented GAO approach provides a good balance between channel estimation, attack detection, and mitigation since GAO adapts the model parameters in the training process. Most of the current methods give slow convergence rates, and high computational costs, and are not very suitable for scale-up, especially in dynamic systems. These limitations make them unadoptable for real-time operations and analysis. The challenges described above are addressed by the proposed hybrid model with GAO, which is therefore ideal for modern secure wireless communication systems due to the reduced computational overhead and faster response time. The model reaches a first-level accuracy of 99% and costs 70 GFLOPs and 35 ms latency.
A Slotted Antenna for 2.45GHz Wearable Applications Mulagala Dileep, Nesasudha Moses, Doondi Kumar Janapala Lecture Notes of the Institute for Computer Sciences Social Informatics and Telecommunications Engineering Lnicst, 2026
Polydimethylsiloxane Based Flexible Antenna with Enhanced Performance and High-Efficiency for Biomedical Applications Deepthy Grace Sudarsanan, Nesasudha Moses, Karthikeyan Thavittupalayam Angappan Applied Science and Engineering Progress, 2025 PDMS is frequently utilized in the biomedical field because of its biocompatibility. The PDMS finds applications in medical implants, cardiovascular flow replication, and in the biomedical industry. This paper presents an innovative antenna design optimized for biomedical applications operating in the Industrial, Scientific, and Medical (ISM) band (2.4–2.5 GHz). The proposed antenna features a compact, flexible structure utilizing a Polydimethylsiloxane (PDMS) substrate to prioritize patient safety and comfort. For PDMS, the loss tangent is 0.0134 and the dielectric constant is 2.71. The design process employs parametric optimization to achieve a low-profile configuration with a wide impedance bandwidth and better radiation characteristics. Simulations and experimental validation using a multi-layered tissue phantom demonstrate superior performance, achieving a return loss below -10 dB across the ISM band. Additionally, Specific Absorption Rate (SAR) measurements confirm compliance with international safety standards, ensuring minimal electromagnetic exposure. PDMS-based flexible antennas hold promise for biomedical applications, but many existing designs face challenges related to limited gain, narrow bandwidth, and poor mechanical stability under continuous body movement. This highlights the need for more reliable and adaptable antenna solutions for on-body use. This study underscores the potential of the proposed ISM-band antenna to enhance the functionality and efficiency of biomedical communication systems, driving advancements in telemedicine and personalized healthcare solutions.
A Compact Band Pass Filter Design for UWB Applications Rama Krishna Chokkakula, Nesasudha Moses, Doondi Kumar Janapala Proceedings of 2025 1st International Conference on Radio Frequency Communication and Networks Rfcon 2025, 2025
Visible Light Communication Technology in Under Water Communication 13th International Conference on Advances in Computing Control and Telecommunication Technologies Act 2022, 2022
Analysis of data falsification in cognitive radio scenarios from secondary user viewpoints International Journal of Advanced Science and Technology, 2019
Outlook on multicarrier modulation techniques worn in intensity modulation and direct detection under dimming Journal of Advanced Research in Dynamical and Control Systems, 2018
A Terahertz Sensor Using Step Impedance Resonator Inspired Square Rings for Glycosuria Sensing RB Kumar, M Nesasudha, DK Janapala Sensing and Imaging 27 (1), 100 , 2026 2026
Functionalized graphene oxide-based electrode material for the potentiometric detection of codeine phosphate in commercial cough syrups for forensic applications J Bhagavathsingh, S Abraham, M Nesasudha, DK Janapala Scientific Reports , 2026 2026
VLC system using LEDs for transmitting underwater information BA Vijayalakshmi, S Lekashri, M Gomathi, R Ashwini, B Arunsundar, ... Journal of Optics 54 (4), 2187-2196 , 2025 2025 Citations: 12
S-Parameter analysis of three-layered aperture coupled antenna with a Flame Retardant-4 composite material as substrate for biomedical applications GS Deepthy, M Nesasudha, TA Karthikeyan Mechanics of Advanced Composite Structures 12 (Special Issue 2: Mechanics of … , 2025 2025 Citations: 1
Enhanced secure trusted routing path selection for internet of medical things JV Ananthi, PSH Jose, M Nesasudha National Academy Science Letters 48 (3), 309-312 , 2025 2025 Citations: 1
Investigations on flexible dielectric material-based wearable antenna for tumor detection TA Karthikeyan, M Nesasudha, ML Valarmathi Journal of Materials Science: Materials in Electronics 35 (35), 2226 , 2024 2024 Citations: 4
An efficient optimization approach with mobility management for enhanced QoS and secure communication in flying adhoc networks JV Ananthi, PSH Jose, M Nesasudha Computers and Electrical Engineering 120, 109665 , 2024 2024 Citations: 3
Analysis of tumor detection using polydimethylsiloxane based wearable antenna KT Angappan, M Nesasudha, MAT Zerith, AL Imoize Frequenz 78 (9-10), 433-453 , 2024 2024 Citations: 2
Integrating Li-Fi for enhanced security in MANET data transmission BA Vijayalakshmi, K Gokulkannan, SSN Kowsalya, RM Victoria, ... Journal of Optics, 1-8 , 2024 2024 Citations: 5
Performance Analysis of MIMO Based ERPO-OFDM Using Optical-Acoustic Channel in Underwater Communication B Anitha Vijayalakshmi, B Arunsundar, C Tamizhselvan, M Nesasudha Wireless Personal Communications 138 (4), 2733-2746 , 2024 2024 Citations: 5
Optimized substrate integrated waveguide (siw) antenna for wearable health monitoring applications M Nesasudha, TA Karthikeyan 2024 5th International Conference on Smart Sensors and Application (ICSSA), 1-6 , 2024 2024 Citations: 5
A review on fabrication and simulation methods of flexible wearable antenna for industrial tumor detection systems TA Karthikeyan, M Nesasudha, S Saranya, B Sharmila Journal of Industrial Information Integration 41, 100673 , 2024 2024 Citations: 21
In-fight connectivity using LEDs as light source in visible light communication system B Anitha Vijayalakshmi, S Lekashri, R Mary Victoria, M Gomathi, ... Journal of Optics 53 (4), 3434-3440 , 2024 2024 Citations: 3
VLC modulation techniques in home automation system using light emitting diodes for data transmission BA Vijayalakshmi, AS Kumar, V Kavitha, M Nesasudha Journal of Optics 53 (3), 2428-2434 , 2024 2024 Citations: 6
Investigations on slotted metamaterial backed wearable antenna for breast tumor detection TA Karthikeyan, M Nesasudha, GS Let Plasmonics 19 (3), 1499-1515 , 2024 2024 Citations: 8
Design and Analysis of a Compact Microstrip Antenna for WBAN Applications R Catherine Shekinah, P Beulah Jenifer, K Indhurani, M Nesasudha, ... International Conference on Intelligent Communication, Control and Devices … , 2024 2024
VLC channel characteristics and data transmission model in indoor environment for future communication: an overview BA Vijayalakshmi, P Gandhimathi, M Nesasudha Journal of Optics 53 (2), 933-939 , 2024 2024 Citations: 12
An exploration on VLC channel model and characteristics using LEDs in underground mining BA Vijayalakshmi, B Arunsundar, A Gopalan, P Gandhimathi, V Kavitha, ... Journal of Optics 52 (3), 1399-1404 , 2023 2023 Citations: 3
Design and analysis of slot loaded microstrip antenna for breast cancer detection GS Deepthy, M Nesasudha 2023 Second International Conference on Electrical, Electronics, Information … , 2023 2023 Citations: 2
Split Ring Resonator-based Conformal Antenna for Earth Coverage Spaceborne Applications GS Let, M Nesasudha, NM Sivamangai, SSS Priya Computer Aided Constellation Management and Communication Satellites … , 2023 2023 Citations: 2
MOST CITED SCHOLAR PUBLICATIONS
Energy efficient data transmission in automatic irrigation system using wireless sensor networks MN Sudha, ML Valarmathi, AS Babu Computers and Electronics in Agriculture 78 (2), 215-221 , 2011 2011 Citations: 101
Design and development of flexible PDMS antenna for UWB-WBAN applications DK Janapala, M Nesasudha, T Mary Neebha, R Kumar Wireless Personal Communications 122 (4), 3467-3483 , 2022 2022 Citations: 37
Specific absorption rate reduction using metasurface unit cell for flexible polydimethylsiloxane antenna for 2.4 GHz wearable applications DK Janapala, M Nesasudha, TM Neebha, R Kumar International Journal of RF and Microwave Computer‐Aided Engineering 29 (9 … , 2019 2019 Citations: 34
A compact wearable 2.45 GHz antenna for WBAN applications M Nesasudha 2020 5th International Conference on Devices, Circuits and Systems (ICDCS … , 2020 2020 Citations: 23
A review on fabrication and simulation methods of flexible wearable antenna for industrial tumor detection systems TA Karthikeyan, M Nesasudha, S Saranya, B Sharmila Journal of Industrial Information Integration 41, 100673 , 2024 2024 Citations: 21
Analysis of an ultra miniature capsule antenna for gastrointestinal endoscopy TM Neebha, M Nesasudha Engineering science and technology, an international journal 21 (5), 938-944 , 2018 2018 Citations: 20
Microstrip antenna for early stage breast cancer detection—A survey M Nesasudha Health and Technology 11 (6), 1191-1204 , 2021 2021 Citations: 19
Artificial neural network based design of a microstrip patch antenna for RADAR applications TM Neebha, M Nesasudha 2017 First International Conference on Recent Advances in Aerospace … , 2017 2017 Citations: 18
A stable miniaturised AMC loaded flexible monopole antenna for ingestible applications TM Neebha, M Nesasudha, DK Janapala Computers in Biology and Medicine 116, 103578 , 2020 2020 Citations: 16
Detection of Attackers in Cognitive Radio Network Using Optimized Neural Networks. VP Ajay, M Nesasudha Intelligent Automation & Soft Computing 34 (1) , 2022 2022 Citations: 15
Optimizing energy in wsn using evolutionary algorithm N Sudha, ML Valarmathi, TC Neyandar Proceeding of IJCA on International Conference on VLSI, Communications and … , 2011 2011 Citations: 15
A frequency tunable hexagon shaped antenna for 5.8 GHz-WiFi and sub 6-5G mobile IoT applications R Orugu, M Nesasudha, DK Janapala 2021 International Conference on Computer Communication and Informatics … , 2021 2021 Citations: 14
Flexible PDMS antenna backed with metasurface for 2.4 GHz wearable applications DK Janapala, M Nesasudha, TM Neebha, R Kumar 2019 IEEE 1st International Conference on Energy, Systems and Information … , 2019 2019 Citations: 14
ERPO-OFDM for data transmission and brightness control in visible light communication system BA Vijayalakshmi, M Nesasudha Optical and Quantum Electronics 53 (9), 489 , 2021 2021 Citations: 13
VLC system using LEDs for transmitting underwater information BA Vijayalakshmi, S Lekashri, M Gomathi, R Ashwini, B Arunsundar, ... Journal of Optics 54 (4), 2187-2196 , 2025 2025 Citations: 12
VLC channel characteristics and data transmission model in indoor environment for future communication: an overview BA Vijayalakshmi, P Gandhimathi, M Nesasudha Journal of Optics 53 (2), 933-939 , 2024 2024 Citations: 12
Flicker mitigation in dimmed LEDs installed indoors using vDSM digital dimming technique under visible light communication. BA Vijayalakshmi, M Nesasudha Optical & Quantum Electronics 52 (2) , 2020 2020 Citations: 12
Design of antenna in Wireless Body Area Network (WBAN) for biotelemetry applications MN Sudha, SJ Benitta Intelligent Decision Technologies 10 (4), 365-371 , 2016 2016 Citations: 12
Minimization of collision in energy constrained wireless sensor network MN Sudha, ML Valarmathi, G Rajsekar, MK Mathew, N Dineshraj, ... Wireless Sensor Network 1 (4), 350 , 2009 2009 Citations: 12
Li-Fi delivering broad band and multimedia content under dimming in train BA Vijayalakshmi, M Nesasudha Optical and Quantum Electronics 52 (12), 518 , 2020 2020 Citations: 10