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Electrochemical energy storing performances of printed LaFeO3 coated with PEDOT: PSS for hybrid supercapacitors (2024)
Journal Article
Nair, R., Uppuluri, K., Paul, F., Sirengo, K., Szwagierczak, D., Pillai, S. C., & Manjakkal, L. (2025). Electrochemical energy storing performances of printed LaFeO3 coated with PEDOT: PSS for hybrid supercapacitors. Chemical Engineering Journal, 504, 158781. https://doi.org/10.1016/j.cej.2024.158781

eveloping advanced smart energy storage devices demanded new functional materials to store energy effectively and deliver power quickly. In this work, we studied the energy-storing performance of perovskite material, lanthanum ferrite (LaFeO3), prepa... Read More about Electrochemical energy storing performances of printed LaFeO3 coated with PEDOT: PSS for hybrid supercapacitors.

Biodegradable biopolymers for electrochemical energy storage devices in a circular economy (2024)
Journal Article
Beg, M., Saju, J., Alcock, K. M., Mavelil, A. T., Markapudi, P. R., Yu, H., & Manjakkal, L. (online). Biodegradable biopolymers for electrochemical energy storage devices in a circular economy. RSC Sustainability, https://doi.org/10.1039/d4su00468j

The rising trend of green energy has made it necessary to utilise efficient green materials in electrochemical energy storage devices (EESDs) under a green economy. The need for sustainable energy storage technologies due to the rising demand for ene... Read More about Biodegradable biopolymers for electrochemical energy storage devices in a circular economy.

Optimizing Carbon Structures in Laser-Induced Graphene Electrodes Using Design of Experiments for Enhanced Electrochemical Sensing Characteristics (2024)
Journal Article
Fantinelli Franco, F., Malik, M. H., Manjakkal, L., Roshanghias, A., Smith, C. J., & Gauchotte-Lindsay, C. (2024). Optimizing Carbon Structures in Laser-Induced Graphene Electrodes Using Design of Experiments for Enhanced Electrochemical Sensing Characteristics. ACS applied materials & interfaces, 16(47), 65489 - 65502. https://doi.org/10.1021/acsami.4c13124

In this study, we explored the morphological and electrochemical properties of carbon-based electrodes derived from laser-induced graphene (LIG) and compared them to commercially available graphene-sheet screen-printed electrodes (GS-SPEs). By optimi... Read More about Optimizing Carbon Structures in Laser-Induced Graphene Electrodes Using Design of Experiments for Enhanced Electrochemical Sensing Characteristics.

Enhancing Supercapacitor Electrochemical Performance with 3D Printed Cellular PEEK/MWCNT Electrodes Coated with PEDOT: PSS (2024)
Journal Article
Chandran, A. C. S., Schneider, J., Nair, R., Buchanan, B., Gadegaard, N., Hogg, R., Kumar, S., & Manjakkal, L. (in press). Enhancing Supercapacitor Electrochemical Performance with 3D Printed Cellular PEEK/MWCNT Electrodes Coated with PEDOT: PSS. ACS Omega, 9(31), 33998-34007. https://doi.org/10.1021/acsomega.4c04576

In this study, we examine the electrochemical performance of supercapacitor (SC) electrodes made from 3D-printed nanocomposites. These composites consist of multiwalled carbon nanotubes (MWCNTs) and polyether ether ketone (PEEK), coated with poly­(3,... Read More about Enhancing Supercapacitor Electrochemical Performance with 3D Printed Cellular PEEK/MWCNT Electrodes Coated with PEDOT: PSS.

Gain-Enhanced/End-Fire Phased Array Antenna for Future Cellular Networks (2024)
Presentation / Conference Contribution
Basherlou, H. J., Ojaroudi Parchin, N., Manjakkal, L., See, C. H., Amar, A. S. I., & Salama, A. G. (2024, May). Gain-Enhanced/End-Fire Phased Array Antenna for Future Cellular Networks. Presented at 14th International Conference on Electrical Engineering (ICEENG), Cairo, Egypt

This research paper delves into a new beam-steerable phased array design, showing remarkable radiation capabilities tailored to the demands of upcoming cellular networks like 5G/6G. The study focuses on smartphone applications, recognizing their comp... Read More about Gain-Enhanced/End-Fire Phased Array Antenna for Future Cellular Networks.

MIMO Smartphone Antenna with CPW-Fed Stepped Resonators for sub 6 GHz Cellular Networks (2024)
Presentation / Conference Contribution
Basherlou, H. J., Ojaroudi Parchin, N., Manjakkal, L., See, C. H., Amar, A. S. I., Salama, A. G., & Darwish, M. (2024, May). MIMO Smartphone Antenna with CPW-Fed Stepped Resonators for sub 6 GHz Cellular Networks. Presented at 14th International Conference on Electrical Engineering (ICEENG), Cairo , Egypt

The imperative for cutting-edge multi-port MIMO antennas has surged, driven by the evolving demands of advanced technologies, notably in the context of 5G networks and beyond. This paper introduces a new MIMO antenna utilizing Coplanar Waveguide (CPW... Read More about MIMO Smartphone Antenna with CPW-Fed Stepped Resonators for sub 6 GHz Cellular Networks.

Smart-Textile-Based Electrochemical Capacitive Ionic Sensors for High-Performance Epidermal Electronics (2024)
Journal Article
Mavelil, A. T., Sam, V., Markapudi, P. R., Paul, F., Beg, M., & Manjakkal, L. (2024). Smart-Textile-Based Electrochemical Capacitive Ionic Sensors for High-Performance Epidermal Electronics. IEEE Sensors Letters, 8(7), Article 2000704. https://doi.org/10.1109/lsens.2024.3411780

Recently, biomedical engineering has placed greater importance on wearable and disposable health-care monitoring devices. Various degradable biosensors have been developed to measure human parameters, such as temperature, pH, pressure, strain, and io... Read More about Smart-Textile-Based Electrochemical Capacitive Ionic Sensors for High-Performance Epidermal Electronics.

Opto-electrochemical variation with gel polymer electrolytes in transparent electrochemical capacitors for ionotronics (2024)
Journal Article
Kumar, C., Sebastian, A. K., Markapudi, P. R., Beg, M., Sundaram, S., Hussain, A., & Manjakkal, L. (2024). Opto-electrochemical variation with gel polymer electrolytes in transparent electrochemical capacitors for ionotronics. Applied Physics Letters, 124(11), Article 111603. https://doi.org/10.1063/5.0190801

Advanced flexible ionotronic devices have found excellent applications in the next generation of electronic skin (e-skin) development for smart wearables, robotics, and prosthesis. In this work, we developed transparent ionotronic-based flexible elec... Read More about Opto-electrochemical variation with gel polymer electrolytes in transparent electrochemical capacitors for ionotronics.

Screen Printed RuO2 Films for Energy Storage and Electrochemical Sensors (2024)
Presentation / Conference Contribution
Paul, F., Sam, V., Uppuluri, K., Beg, M., & Manjakkal, L. (2024, February). Screen Printed RuO2 Films for Energy Storage and Electrochemical Sensors. Poster presented at The 10th annual Innovations in Large-Area Electronics Conference (innoLAE 2024), Cambridge

Electrochemical Capacitors based on Organic Semiconductors and Metal Oxides (2024)
Presentation / Conference Contribution
Kanathedath, J., Nair, R., Peringath, A. R., Sasikumar, A., Paul, F., Beg, M., & Manjakkal, L. (2024, February). Electrochemical Capacitors based on Organic Semiconductors and Metal Oxides. Poster presented at The 10th annual Innovations in Large-Area Electronics Conference (innoLAE 2024), Cambridge

Multifunctional flexible and stretchable electrochromic energy storage devices (2024)
Journal Article
Manjakkal, L., Pereira, L., Kumi Barimah, E., Grey, P., Franco, F. F., Lin, Z., Jose, G., & Hogg, R. A. (2024). Multifunctional flexible and stretchable electrochromic energy storage devices. Progress in Materials Science, 142, Article 101244. https://doi.org/10.1016/j.pmatsci.2024.101244

Electrochromic energy storage devices (EESDs) including electrochromic supercapacitors (ESC) and electrochromic batteries (ECB) have received significant recent attention in wearables, smart windows, and colour-changing sunglasses due to their multi-... Read More about Multifunctional flexible and stretchable electrochromic energy storage devices.

Paper Supercapacitor Developed Using a Manganese Dioxide/Carbon Black Composite and a Water Hyacinth Cellulose Nanofiber-Based Bilayer Separator (2023)
Journal Article
Beg, M., Alcock, K. M., Titus Mavelil, A., O’Rourke, D., Sun, D., Goh, K., Manjakkal, L., & Yu, H. (2023). Paper Supercapacitor Developed Using a Manganese Dioxide/Carbon Black Composite and a Water Hyacinth Cellulose Nanofiber-Based Bilayer Separator. ACS applied materials & interfaces, 15(44), 51100-51109. https://doi.org/10.1021/acsami.3c11005

Flexible and green energy storage devices have a wide range of applications in prospective electronics and connected devices. In this study, a new eco-friendly bilayer separator and primary and secondary paper supercapacitors based on manganese dioxi... Read More about Paper Supercapacitor Developed Using a Manganese Dioxide/Carbon Black Composite and a Water Hyacinth Cellulose Nanofiber-Based Bilayer Separator.

A high-performance pH-sensitive electrode integrated with a multi-sensing probe for online water quality monitoring (2023)
Journal Article
Uppuluri, K., Szwagierczak, D., Fernandes, L., Zaraska, K., Lange, I., Synkiewicz-Musialska, B., & Manjakkal, L. (2023). A high-performance pH-sensitive electrode integrated with a multi-sensing probe for online water quality monitoring. Journal of Materials Chemistry C, 44, 15512-15520. https://doi.org/10.1039/d3tc02646a

Water quality monitoring is an essential tool in effective environmental and public health protection. This study presents a new screen-printed Co2O3–RuO2-based electrode for electrochemical pH sensing and its comprehensive morphological, composition... Read More about A high-performance pH-sensitive electrode integrated with a multi-sensing probe for online water quality monitoring.

Sensing Technologies for Real Time Monitoring of Water Quality (2023)
Book
Manjakkal, L., Lorenzelli, L., & Willander, M. (Eds.). (2023). Sensing Technologies for Real Time Monitoring of Water Quality. IEEE Press + Wiley

Wiley_Sensing Technologies for Real Time Monitoring of Water Quality_978-1-119-77581-2.pdf

Chemical synthesis of polyaniline and polythiophene electrodes with excellent performance in supercapacitors (2023)
Journal Article
Ramesh Peringath, A., Bayan, M. A., Beg, M., Jain, A., Pierini, F., Gadegaard, N., Hogg, R., & Manjakkal, L. (2023). Chemical synthesis of polyaniline and polythiophene electrodes with excellent performance in supercapacitors. Journal of Energy Storage, 74(Part A), Article 108811. https://doi.org/10.1016/j.est.2023.108811

The emergence of portable electronics in miniaturized and intelligent devices demands high-performance supercapacitors (SC) and batteries as power sources. For the fabrication of such energy storage devices, conducting polymers (CPs) have significant... Read More about Chemical synthesis of polyaniline and polythiophene electrodes with excellent performance in supercapacitors.

Sensor system for precision agriculture smart watering can (2023)
Journal Article
Rabak, A., Uppuluri, K., Franco, F. F., Kumar, N., Georgiev, V. P., Gauchotte-Lindsay, C., Smith, C., Hogg, R. A., & Manjakkal, L. (2023). Sensor system for precision agriculture smart watering can. Results in Engineering, 19, Article 101297. https://doi.org/10.1016/j.rineng.2023.101297

The expansion of precision agriculture technology from commercial agriculture to home gardening is highly important due to its economic and health benefits, delivered through a new way of crop production. Additionally, it offers physiological and psy... Read More about Sensor system for precision agriculture smart watering can.

Wearable Supercapacitive Ions Monitoring Sensors (2023)
Presentation / Conference Contribution
Titus Mavelil, A. T., Chandran, A. C., Sam, V., Beg, M., & Manjakkal, L. (2023, June). Wearable Supercapacitive Ions Monitoring Sensors. Poster presented at International Women in Engineering Day 2023, University of Aberdeen, Aberdeen