Ruben Del-Rio-Ruiz

Postdoctoral Scholar at Tufts University, specializing in the 3D design, fabrication, and assembly of biomedical devices, which includes wearable and flexible electronic platforms for communication and passive powering of devices.

New Hampshire

Research Expertise

Biomedical devices
Ingestibles
Wearables
metamaterials
electromagnetics
Hardware and Architecture
Computer Networks and Communications
Control and Systems Engineering
Signal Processing
Electrical and Electronic Engineering
Biomaterials
Bioengineering
Biomedical Engineering
Biophysics
Condensed Matter Physics
Instrumentation
Metals and Alloys
Electronic, Optical and Magnetic Materials
Surfaces, Coatings and Films
Fluid Flow and Transfer Processes
Biotechnology
Polymers and Plastics

About

**Education** Ruben Del-Rio-Ruiz is an electrical engineer specializing in biomedical engineering. He completed his B.S. in Electrical Engineering at the Universidad de Deusto in 2013 and pursued his M.S. in Telecommunications Engineering with a focus on Flexible RF Electronics at the same university, graduating in 2015. Recently, Ruben obtained his Ph.D. in Engineering for the Information Society and Sustainable Development from the University of Deusto in 2021, concentrating on wearable Antennas design and Propagation properties. **Experience** Throughout his academic journey, Ruben has garnered extensive experience in the field of telecommunications, with a specific emphasis on textile planar antenna design and in-body comunications. He has worked as a Research Assistant and a PhD Student at the University of Deusto. Additionally, he served as a Postdoctoral Scholar at Tufts University, where he combined his prior research acumen with the development of biomedical devices for rapid diagnosis and treatment of diseases. More specifically, he has protrotyped a variaty of ingestible devices as a tool to better understand the gut microbiome. **Purpose** Ruben's research is centered on creating innovative and sustainable solutions for biomedical devices. He has disseminated his findings through publications in various peer-reviewed journals and presentations at international conferences. Committed to advancing non-intrusive biomedical devices, their safety, and sustainable development, Ruben is dedicated to utilizing his knowledge and skills for this purpose.

Publications

Planar Textile Off-Body Communication Antennas: A Survey

Electronics / Jun 24, 2019

Del-Rio-Ruiz, R., Lopez-Garde, J.-M., & Legarda, J. (2019). Planar Textile Off-Body Communication Antennas: A Survey. Electronics, 8(6), 714. https://doi.org/10.3390/electronics8060714

Design and performance analysis of a purely textile spiral antenna for on-body NFC applications

2017 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) / Sep 01, 2017

Del-Rio-Ruiz, R., Lopez-Garde, J.-M., Macon, J. L., & Rogier, H. (2017, September). Design and performance analysis of a purely textile spiral antenna for on-body NFC applications. 2017 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). https://doi.org/10.1109/imws-amp.2017.8247427

Recent progress in electrospun nanomaterials for wearables

APL Bioengineering / Jun 01, 2022

Das, R., Zeng, W., Asci, C., Del-Rio-Ruiz, R., & Sonkusale, S. (2022). Recent progress in electrospun nanomaterials for wearables. APL Bioengineering, 6(2), 021505. https://doi.org/10.1063/5.0088136

Reliable Lab-Scale Construction Process for Electromagnetically Coupled Textile Microstrip Patch Antennas for the 2.45 GHz ISM Band

IEEE Antennas and Wireless Propagation Letters / Jan 01, 2020

Del-Rio-Ruiz, R., Lopez-Garde, J.-M., Legarda, J., Lemey, S., Caytan, O., & Rogier, H. (2020). Reliable Lab-Scale Construction Process for Electromagnetically Coupled Textile Microstrip Patch Antennas for the 2.45 GHz ISM Band. IEEE Antennas and Wireless Propagation Letters, 19(1), 153–157. https://doi.org/10.1109/lawp.2019.2956238

2 × 2 Textile Rectenna Array with Electromagnetically Coupled Microstrip Patch Antennas in the 2.4 GHz WiFi Band

Electronics / Jun 17, 2021

Lopez-Garde, J.-M., Del-Rio-Ruiz, R., Legarda, J., & Rogier, H. (2021). 2 × 2 Textile Rectenna Array with Electromagnetically Coupled Microstrip Patch Antennas in the 2.4 GHz WiFi Band. Electronics, 10(12), 1447. https://doi.org/10.3390/electronics10121447

A Combination of Transmission Line Models as Design Instruments for Electromagnetically Coupled Microstrip Patch Antennas in the 2.45 GHz ISM Band

IEEE Transactions on Antennas and Propagation / Jan 01, 2021

Del-Rio-Ruiz, R., Lopez-Garde, J.-M., Legarda, J., Caytan, O., & Rogier, H. (2021). A Combination of Transmission Line Models as Design Instruments for Electromagnetically Coupled Microstrip Patch Antennas in the 2.45 GHz ISM Band. IEEE Transactions on Antennas and Propagation, 69(1), 550–555. https://doi.org/10.1109/tap.2020.3001668

Experimental Frequency Tuning Methodology of a Cantilever Piezoelectric Harvester Validated in a Multimodal Transportation

Electronics / Jan 01, 2020

Del-Rio-Ruiz, R., Echevarria, J. J., Eguiluz, X., Lopez-Garde, J.-M., & Legarda, J. (2020). Experimental Frequency Tuning Methodology of a Cantilever Piezoelectric Harvester Validated in a Multimodal Transportation. Electronics, 9(1), 79. https://doi.org/10.3390/electronics9010079

Design and Performance Analysis of a Purely Textile Proximity Fed Microstrip Patch Antenna for On-Body Wireless Communications

2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting / Jul 01, 2018

Del-Rio-Ruiz, R., Lopez-Garde, J.-M., & Macon, J. L. (2018, July). Design and Performance Analysis of a Purely Textile Proximity Fed Microstrip Patch Antenna for On-Body Wireless Communications. 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. https://doi.org/10.1109/apusncursinrsm.2018.8608986

Ingestible pH Sensing Capsule with Thread-Based Electrochemical Sensors

2022 IEEE Sensors / Oct 30, 2022

Asci, C., Del-Rio-Ruiz, R., Sharma, A., & Sonkusale, S. (2022, October 30). Ingestible pH Sensing Capsule with Thread-Based Electrochemical Sensors. 2022 IEEE Sensors. https://doi.org/10.1109/sensors52175.2022.9967347

Smart Nests: IoT for Ornithology

2018 Global Internet of Things Summit (GIoTS) / Jun 01, 2018

Del-Rio-Ruiz, R., Lopez-Garde, J.-M., Ruiz-de-Garibay, J., & Macon, J. L. (2018, June). Smart Nests: IoT for Ornithology. 2018 Global Internet of Things Summit (GIoTS). https://doi.org/10.1109/giots.2018.8534436

Preliminary Results on Sensing Pillow to Monitor Head Movement using strain sensing threads

2022 IEEE Sensors / Oct 30, 2022

Liu, M., Del-Rio-Ruiz, R., Sharma, A., Asci, C., Owyeung, R., & Sonkusale, S. (2022, October 30). Preliminary Results on Sensing Pillow to Monitor Head Movement using strain sensing threads. 2022 IEEE Sensors. https://doi.org/10.1109/sensors52175.2022.9967140

Distance-based thread analytical devices coupled with dispersive liquid-liquid microextraction for melatonin detection

Sensors and Actuators B: Chemical / Nov 01, 2023

Khachornsakkul, K., Del-Rio-Ruiz, R., Chheang, L., & Sonkusale, S. (2023). Distance-based thread analytical devices coupled with dispersive liquid-liquid microextraction for melatonin detection. Sensors and Actuators B: Chemical, 395, 134518. https://doi.org/10.1016/j.snb.2023.134518

Ingestible pH sensing device for gastrointestinal health monitoring based on thread-based electrochemical sensors

Microchimica Acta / Sep 12, 2023

Asci, C., Sharma, A., Del-Rio-Ruiz, R., & Sonkusale, S. (2023). Ingestible pH sensing device for gastrointestinal health monitoring based on thread-based electrochemical sensors. Microchimica Acta, 190(10). https://doi.org/10.1007/s00604-023-05946-1

Soft Injectable Sutures for Dose‐Controlled and Continuous Drug Delivery

Macromolecular Bioscience / Oct 22, 2023

Alsaedi, M. K., Lone, O., Nejad, H. R., Das, R., Owyeung, R. E., Del‐Rio‐Ruiz, R., & Sonkusale, S. (2023). Soft Injectable Sutures for Dose‐Controlled and Continuous Drug Delivery. Macromolecular Bioscience. Portico. https://doi.org/10.1002/mabi.202300365

Flexible Textile Based Electrooculogram Wearable Eye Tracking System for Human-Machine Interface

2023 IEEE 66th International Midwest Symposium on Circuits and Systems (MWSCAS) / Aug 06, 2023

Zeng, W., Del-Rio-Ruiz, R., & Sonkusale, S. (2023, August 6). Flexible Textile Based Electrooculogram Wearable Eye Tracking System for Human-Machine Interface. 2023 IEEE 66th International Midwest Symposium on Circuits and Systems (MWSCAS). https://doi.org/10.1109/mwscas57524.2023.10406119

Multiplexed Sensing Probe for Bioreactors for Cellular Agriculture

IEEE Sensors Letters / Aug 01, 2023

Sharma, A., Asci, C., Del-Rio-Ruiz, R., Trinidad, K., Hossain, N. I., Kaplan, D. L., & Sonkusale, S. (2023). Multiplexed Sensing Probe for Bioreactors for Cellular Agriculture. IEEE Sensors Letters, 7(8), 1–4. https://doi.org/10.1109/lsens.2023.3300799

Real-time soil nutrients monitoring

Mar 28, 2022

Saiz, E., Radu, A., Ullah, S., Del-Rio-Ruiz, R., Alsaedi, M., & Sonkusale, S. (2022). Real-time soil nutrients monitoring. https://doi.org/10.5194/egusphere-egu22-8543

Improving efficiency of RF energy harvesting in wearable IoT applications

Proceedings of the 11th International Conference on the Internet of Things / Nov 08, 2021

Lopez-Garde, J.-M., Legarda-Macon, J., & Del-Rio-Ruiz, R. (2021, November 8). Improving efficiency of RF energy harvesting in wearable IoT applications: Impedance model of rectifier welding points and diode’s package. Proceedings of the 11th International Conference on the Internet of Things. https://doi.org/10.1145/3494322.3494334

Towards More Accurate Design Models for Electromagnetically-Coupled Microstrip Patch Antennas between 1 and 10 GHz

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting / Jul 05, 2020

Del-Rio-Ruiz, R., Lopez-Garde, J.-M., & Legarda, J. (2020, July 5). Towards More Accurate Design Models for Electromagnetically-Coupled Microstrip Patch Antennas between 1 and 10 GHz. 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting. https://doi.org/10.1109/ieeeconf35879.2020.9329739

Gold Nanomaterial-Based Microfluidic Paper Analytical Device for Simultaneous Quantification of Gram-Negative Bacteria and Nitrite Ions in Water Samples

ACS Sensors / Nov 01, 2023

Khachornsakkul, K., Del-Rio-Ruiz, R., Creasey, H., Widmer, G., & Sonkusale, S. R. (2023). Gold Nanomaterial-Based Microfluidic Paper Analytical Device for Simultaneous Quantification of Gram-Negative Bacteria and Nitrite Ions in Water Samples. ACS Sensors, 8(11), 4364–4373. https://doi.org/10.1021/acssensors.3c01769

Highly Sensitive Photothermal Microfluidic Thread-Based Duplex Immunosensor for Point-of-Care Monitoring

Analytical Chemistry / Aug 14, 2023

Khachornsakkul, K., Del-Rio-Ruiz, R., Zeng, W., & Sonkusale, S. (2023). Highly Sensitive Photothermal Microfluidic Thread-Based Duplex Immunosensor for Point-of-Care Monitoring. Analytical Chemistry, 95(34), 12802–12810. https://doi.org/10.1021/acs.analchem.3c01778

Education

Universidad de Deusto

B.S. Degree on Electrical Engineering, Telecommunications / May, 2013

Bilbao

University of Deusto

M.S. Degree on Telecoomunications Engineering, Flexible RF electronics / May, 2015

Bilbao

University of Deusto

Ph.D on Engineering for the Information Society and Sustainable Development, Antennas and Propagation / May, 2021

Bilbao

Experience

Tufts University

Postdoctoral Scholar / March, 2021Present

Designing and fabricating medical devices such as microneedles, ingestible devices, thread-based electrochemical sensor platforms, as well as thread- and paper-based analytical sensing fabrication platforms and smart wearables. Expertise includes electromagnetics, planar antenna designs, energy harvesting systems, and the miniaturization of electronic and mechanical-based devices.

Universidad de Deusto

PhD Student / February, 2015March, 2021

University of Deusto

Research Assistant / January, 2011June, 2015

Developing engineering research-based projects involving the design, fabrication, and prototyping of PCB boards for a variety of applications.

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