Soft and Printed Microelectronics

Multilayer Soft PCBs via Laser Patterning and Solvent‐Assisted Interface Engineering

Sat, 01 Aug 2026 00:00:00 +0000

UC secures European funding to revolutionise physical rehabilitation with innovative technology

Tue, 30 Jun 2026 00:00:00 +0000

The Faculty of Sciences and Technology of the University of Coimbra (FCTUC) has been awarded a Proof of Concept (PoC) grant worth €150,000 from the European Research Council (ERC) to develop the KineSense project, which aims to create innovative wearable technologies capable of continuously and objectively monitoring muscle activity and joint movement throughout the rehabilitation process.

Led by Mahmoud Tavakoli, researcher at the FCTUC Institute of Systems and Robotics, the project seeks to turn these technologies into clinically validated tools that can be easily integrated into rehabilitation practice, including the use of advanced data analytics to support results interpretation and therapeutic decision-making.

KineSense combines two complementary systems: ultra-thin patches applied directly to the skin to monitor muscle activity, and a smart textile-based platform to track joint movement comfortably and non-invasively, both in clinical settings and in users’ everyday activities.

Neurological and musculoskeletal conditions, such as stroke, Parkinson’s disease, osteoarthritis, and sports injuries, affect millions of people worldwide and are among the leading causes of disability. Although rehabilitation plays a key role in patient recovery, ongoing assessment of progress still often relies on clinical observation and patients’ subjective reports.

By continuously collecting data on muscle function and movement quality, KineSense aims to give doctors, physiotherapists, and patients objective information to track recovery more precisely and on a more personalised basis.

Beyond healthcare, these technologies may also find applications in sport and human performance monitoring, helping to prevent injuries, optimise training, and support the recovery of professional and amateur athletes alike.

“This project represents an important step in turning fundamental scientific discoveries into technologies that can directly benefit society. Our vision is to make quantitative movement analysis as accessible as measuring heart rate is today,” says Mahmoud Tavakoli.

KineSense builds on a strong intellectual property portfolio developed at FCTUC over the past decade, including several international patent families. Technology transfer and commercialisation activities will be supported by UC Business, the University of Coimbra’s technology transfer office, helping to accelerate the path of these solutions to market.

The project will be developed at FCTUC in collaboration with international partners, including the University Medical Center Groningen, in the Netherlands, reinforcing the institution’s position as a European reference in digital health, wearable technologies, and advanced rehabilitation systems.

Read the original article in UC News

Estes ecrãs flexíveis e elásticos são obra de investigadores da Universidade de Coimbra

Sun, 24 May 2026 00:00:00 +0000

Estes ecrãs flexíveis e elásticos são obra de investigadores da Universidade de Coimbra A tecnologia, baseada no estudo sobre circuitos elásticos, vem da investigação de uma equipa da Universidade de Coimbra e pode viabilizar eletrónicos mais resistentes, diz Mahmoud Tavakoli.

Read the original article in Público

Liquid metal nano-gyroid stretchable transparent conductor for ultra-resilient optoelectronics and electroluminescence

Fri, 01 May 2026 00:00:00 +0000

Effects of sensor geometry, placement, and cycle detection on wearable respiration monitoring with textile printed strain sensors

Sun, 01 Mar 2026 00:00:00 +0000

Recyclable and Binder‐Free EGaIn–Carbon Liquid Metal Composite: A Sustainable Approach for High‐Performance Stretchable Electronics, Thermal‐Interfacing and EMI‐Shielding

Sun, 01 Mar 2026 00:00:00 +0000

Micropatterned Biphasic Printed Electrodes for High-Fidelity on-Skin Bioelectronics

Thu, 01 Jan 2026 00:00:00 +0000

Method to obtain a skin electrode patch and respective skin electrode patch

Mon, 01 Dec 2025 00:00:00 +0000

Soft skin-interfacing electrodes for wearable bioelectronics

Wed, 01 Oct 2025 00:00:00 +0000

Suspension, colloid or network comprising liquid metal droplets bound with graphene-based particles, respective ink, transparent stretchable conductor and obtention process thereof

Wed, 01 Oct 2025 00:00:00 +0000

People

Tue, 29 Jul 2025 00:00:00 +0000

High-Performance Stretchable Gallium Battery for Wearable Electronics, Through Synthesis of Foam Electrodes

Tue, 01 Jul 2025 00:00:00 +0000

Liquid metal fusion with conductive inks and pastes

Sun, 01 Jun 2025 00:00:00 +0000

Biphasic Graphene‐Oxide Liquid Metal Powder: Synthesis, Characterization, and Application in Energy Storage

Thu, 01 May 2025 00:00:00 +0000

Miniaturized Liquid Metal Composite Circuits with Energy Harvesting Coils for Battery‐Free Bioelectronics and Optogenetics

Sat, 01 Mar 2025 00:00:00 +0000

Intrinsically Soft Printed Electronics for Digitally Augmented Human Sensing and Vision

Wed, 01 Jan 2025 00:00:00 +0000

ParCuR—A Novel AI-Enabled Gait Cueing Wearable for Patients with Parkinson’s Disease

Wed, 01 Jan 2025 00:00:00 +0000

Radio Frequency Passive Tagging System Enabling Object Recognition and Alignment by Robotic Hands

Wed, 01 Jan 2025 00:00:00 +0000

Robotic Hand Localization Enabled by a Fully Passive Tagging System

Wed, 01 Jan 2025 00:00:00 +0000

Deployment and validation of a smart bed architecture for untethered patients with wireless biomonitoring stickers

Sun, 01 Dec 2024 00:00:00 +0000

Replacing the Gallium Oxide Shell with Conductive Ag: Toward a Printable and Recyclable Composite for Highly Stretchable Electronics, Electromagnetic Shielding, and Thermal Interfaces

Fri, 01 Nov 2024 00:00:00 +0000

J. Norberto Pires Innovation Prize awarded to electronic patches project for monitoring health data

Thu, 26 Sep 2024 00:00:00 +0000

E-skins could be a more practical and durable option for patients who need wearables to monitor health data. The prize was awarded to researchers from the UC Institute of Systems and Robotics.

The winner of the 3rd edition of the J. Norberto Pires Innovation Prize, awarded by the University of Coimbra (UC), is the ‘E-Skins’ project, which focuses on developing electronic patches for biomonitoring health data, such as heartbeat and brain activity. The award was presented on Wednesday, the 25th of September, to researchers Mahmoud Tavakoli, Manuel Reis Carneiro, and Pedro Lopes, from the UC Institute of Systems and Robotics.

The winning project offers a more practical and durable solution for patients who need wearable devices for continuous, long-term electrophysiological health monitoring: a type of ’electronic skin’ that uses innovative materials and methods and can be worn comfortably for over a week.

“With E-Skins, we propose an innovative architecture of materials and methods for implementing multi-electrode thin-film bioelectronic patches for continuous electrophysiological monitoring over long periods of time. Unlike other existing wearable patches, this solution can be worn for more than a week and is unaffected by daily routines such as exercise or showering. For the electrodes, we use a patented conductive ink that combines the advantages of dry electrodes (printability and material integrity) with the advantages of wet electrodes (high signal quality),” the researchers explain.

These electronic patches have ‘mechanical properties similar to human skin, improving patient comfort and reducing noise.’ They also offer other advantages, such as low-cost production and 24/7 remote patient monitoring. ‘Manufacturing based on digital printing techniques allows for implementing low-cost, customised e-adhesives for each patient or application. Additionally, the patch integrates a universal miniaturised electronic system for biopotential sensing via bioadhesive and wireless communication, already demonstrated in a hospital environment. This innovative approach enables 24/7 patient monitoring at home, allowing them to maintain their routines, which speeds up recovery and reduces costs for the healthcare system,’ explain Mahmoud Tavakoli, Manuel Reis Carneiro, and Pedro Lopes.

The jury also awarded two honourable mentions in this edition. One was given to ‘AR73/74 - Antes da Revolução | 1973-1974’ (AR73/74 - Before the Revolution | 1973-1974), a multimedia project by Clara Almeida Santos and Francisco Sena Santos, based on a series of portraits that depict life in Portugal during the months immediately preceding the revolution of 25 April 1974. The second went to EcoTechLCA, a tool developed by Jade Müller for assessing the environmental sustainability of innovative products and technologies in the early stages of development (i.e., on a laboratory production scale).

The J. Norberto Pires Innovation Prize aims to encourage and recognise innovative initiatives designed and developed by students, technical staff, faculty and researchers of the University of Coimbra (UC), or those with academic or professional links to UC.

More information is available at https://www.uc.pt/premionorbertopires/

“O projeto vencedor é um excelente exemplo da qualidade dos projetos de investigação e de inovação desenvolvidos na Universidade de Coimbra, com elevado potencial e orientados para as necessidades da sociedade. Destacou-se justamente entre os distintos candidatos desta edição do Prémio de Inovação J. Norberto Pires”, declara o Reitor da UC, Amílcar Falcão, que presidiu ao júri que atribuiu o galardão.

“O projeto premiado, paradigma da investigação de excelência desenvolvida na UC, honra o legado de promoção da inovação e do empreendedorismo do Professor e membro do Conselho Geral (CG) da UC Norberto Pires, que tão justamente quisemos homenagear com a criação deste galardão”, afirma a Presidente do CG, Gabriela Figueiredo Dias, vice-presidente do júri – que foi representada na entrega do prémio por Nuno Moita, membro da Comissão de Inovação, Serviço e Relação com a Comunidade do CG.

O Prémio Inovação J. Norberto Pires visa estimular e reconhecer iniciativas inovadoras concebidas e desenvolvidas por alunos, funcionários, docentes ou investigadores da Universidade de Coimbra (ou que apresentem qualquer tipo de vínculo académico ou funcional a esta instituição), constituindo uma homenagem a Joaquim Norberto Pires, pela sua excecional contribuição para a inovação na Universidade de Coimbra. O galardão, entregue anualmente, contempla a atribuição de um diploma e uma recompensa no valor de 6.000 euros.

Nesta edição, o júri decidiu atribuir duas menções honrosas. Uma para “AR73/74 - Antes da Revolução | 1973-1974”, um projeto multimédia de Clara Almeida Santos e Francisco Sena Santos, centrado num conjunto de retratos que pretendem dar uma imagem de como era Portugal nos meses imediatamente antes da revolução de 25 de Abril de 1974. E outra para EcoTechLCA, uma ferramenta de avaliação da sustentabilidade ambiental para produtos e tecnologias inovadoras nas fases iniciais de desenvolvimento (ou seja, em escala laboratorial de produção), de Jade Müller.

Read the original article in UC News

3R Batteries: Resilient, Repairable, and Recyclable Based on Liquid Gallium Electrode

Mon, 01 Jul 2024 00:00:00 +0000

Graphene‐Assisted Chemical Stabilization of Liquid Metal Nano Droplets for Liquid Metal Based Energy Storage

Mon, 01 Jul 2024 00:00:00 +0000

Gallium–Carbon: A Universal Composite for Sustainable 3D Printing of Integrated Sensor–Heater–Battery Systems in Wearable and Recyclable Electronics

Sat, 01 Jun 2024 00:00:00 +0000

3D Printed Gallium Battery with Outstanding Energy Storage: Toward Fully Printed Battery‐on‐the‐Board Soft Electronics

Wed, 01 May 2024 00:00:00 +0000

How I make stretchy electronics for medicine

Mon, 22 Jan 2024 00:00:00 +0000

The Nature Feature on the theme “Where I Work”: Mahmoud Tavakoli works on wearable electronic devices that are less invasive than standard equipment.

Read the full feature piece

Recyclable liquid metal – Graphene supercapacitor

Mon, 01 Jan 2024 00:00:00 +0000

In vivo recordings in freely behaving mice using independent silicon probes targeting multiple brain regions

Fri, 01 Dec 2023 00:00:00 +0000

From Conventional Non-Conductive Foams to Soft Piezoresistive Pressure Sensors: A Low-Cost Approach to Large-Area Pressure-Mapping

Sun, 01 Oct 2023 00:00:00 +0000

Gallium‐Based Liquid–Solid Biphasic Conductors for Soft Electronics

Sun, 01 Oct 2023 00:00:00 +0000

Photodegradable Non‐Drying Hydrogel Substrates for Liquid Metal Based Sustainable Soft‐Matter Electronics

Sun, 01 Oct 2023 00:00:00 +0000

3D Printed Radiofrequency Sensing System For Robotic Applications

Fri, 01 Sep 2023 00:00:00 +0000

Facile Synthesis of Highly Stretchable, Tough, and Photodegradable Hydrogels

Fri, 01 Sep 2023 00:00:00 +0000

Recyclable Thin‐Film Soft Electronics for Smart Packaging and E‐Skins

Fri, 01 Sep 2023 00:00:00 +0000

Toward Fully Printed Soft Actuators: UV‐Assisted Printing of Liquid Crystal Elastomers and Biphasic Liquid Metal Conductors

Tue, 01 Aug 2023 00:00:00 +0000

Digitally Printable Magnetic Liquid Metal Composite for Recyclable Soft‐Matter Electronics

Mon, 01 May 2023 00:00:00 +0000

Multimaterial Printing of Liquid Crystal Elastomers with Integrated Stretchable Electronics

Mon, 01 May 2023 00:00:00 +0000

Nature-Driven Biocompatible Epidermal Electronic Skin for Real-Time Wireless Monitoring of Human Physiological Signals

Sat, 01 Apr 2023 00:00:00 +0000

Radiofrequency System for Localizing a Robotic Hand on a Surface Tagged with Passive Resonators

Wed, 01 Mar 2023 00:00:00 +0000

Digitally Printed Liquid Metal Composite Antenna for Energy Harvesting: Toward Energy‐Autonomous Battery‐Free Wearable Bioelectronics

Wed, 01 Feb 2023 00:00:00 +0000

SiO$_textrm2$ Nanoparticles Incorporated Poly(Vinylidene) Fluoride Composite for Efficient Piezoelectric Energy Harvesting and Dual‐Mode Sensing

Wed, 01 Feb 2023 00:00:00 +0000

CMU Portugal Researcher at Universidade de Coimbra wins a 2.8M€ ERC Grant Consolidator

Wed, 11 Jan 2023 00:00:00 +0000

Mahmoud Tavakoli, director of the “Soft and Printed Microelectronics Laboratory” at the Institute of Systems and Robotics (ISR) of the Faculty of Science and Technology of Universidade de Coimbra (FCTUC), has just won a prestigious European Research Council Consolidator grant (ERC) for five years.

The researcher will receive 2.8M€ to study futuristic electronic circuits, a topic he has been working on for several years under the scope of projects funded through Carnegie Mellon Portugal (CMU Portugal). The ERC Consolidator Grant will support the project “Liquid3D: 3D Printed, Bioinspired, Soft-Matter Electronics based on Liquid Metal Composites: Eco-Friendly, Resilient, Recyclable, and Repairable”, which is already underway and aims to provide design freedom to scientists, allowing them to print futuristic soft electronics and soft machines. «The idea is to make a transition from rigid, breakable, polluting and battery-dependent electronics to soft, resilient, recyclable, and self-powered electronics. In this context, the Liquid3D project will develop a series of innovative printable composites based on liquid metals to print 3D functional cells for sensing, stimulating, processing, and storing energy that is entangled in a distributed system and in a three-dimensional architecture», explains Mahmoud Tavakoli.

According to the researcher, “the most impressive thing about these systems is that they will allow a new level of bioinspiration in man-made devices, which is not yet possible”. For doing that, this project will develop novel printable biphasic composites based on liquid metal, and methods to print them, and finally procedures that allow recycling them.

“ERC projects fund high-risk, high-reward fundamental science. My goal is to redefine electronics and robotics», shares the researcher, concluding that he foresees a fundamental change in the materials used in electronics and robotics and how they will be made. “We’re talking about a wide range of soft, self-healing materials that can be printed together to permit a level of bioinspiration never seen before. This is due to a variety of new printable materials and printing technologies that will allow printing sensors, batteries, and electronic circuits to function side by side, like what we see in biology».

The Liquid3D project was launched this month of January and will permit the implementation of three new laboratories at FCTUC, namely the Laboratory of Soft and Printed Materials, which is intended to develop new materials for the next generation of electronics and robotics; the Digital Fabrication Laboratory, to create and validate technologies for additive manufacturing of the developed materials; and the Microscopy and Characterization Laboratory, to characterize electrical, mechanical and optical properties of the materials and systems produced.

Mahmoud Tavakoli manages a multi-disciplinary research team of Electrical, Chemical, Biomedical and Mechanical Engineers that combines expertise in nano materials, polymers, and liquid conductors for the applications of soft robotics, soft electronics, smart textile, smart plastics, and health monitoring. His research work at the “Soft and Printed Microelectronics Laboratory” from ISR Coimbra has been strongly supported by CMU Portugal Program and Fundação para a Ciência e a Tecnologia (FCT). Through this partnership, the FCTUC team has collaborated with the Soft Machines Lab from Carnegie Mellon University’s College of Engineering on three projects: Stretchtonics, one of CMU Portugal Entrepreneurial Research Initiatives; WoW, one of our Large Scale Collaborative Projects which is led by Glintt; and the Exploratory research project Exoskins. The research developed under this partnership includes stretchable electronics, wearable computing, wearable patient monitoring, printed sensors and electronics, digital health, and digital biomarkers.

Read the original text in CMU Portugal’s website

Contact

Mon, 24 Oct 2022 00:00:00 +0000

SIC news reel about reducing electronic waste

Wed, 07 Sep 2022 00:00:00 +0000

The Portuguese television network “SIC” had a news reel piece about our lab, regarding our techniques to produce stretchable electronics and reduce waste.

3D Printed Stretchable Liquid Gallium Battery

Fri, 01 Jul 2022 00:00:00 +0000

Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors

Sun, 01 May 2022 00:00:00 +0000

Exame Informatica program about E-Skin - The Electronic Skin

Wed, 15 Sep 2021 00:00:00 +0000

The Portuguese program of Exame Informatica regarding our lab’s development of E-Skins. You can see the piece below.

Bi-Phasic Ag–In–Ga-Embedded Elastomer Inks for Digitally Printed, Ultra-Stretchable, Multi-layer Electronics

Mon, 01 Mar 2021 00:00:00 +0000

Wearable and Comfortable e-Textile Headband for Long-Term Acquisition of Forehead EEG Signals

Tue, 01 Dec 2020 00:00:00 +0000

Domiciliary Hospitalization through Wearable Biomonitoring Patches: Recent Advances, Technical Challenges, and the Relation to Covid-19

Sun, 01 Nov 2020 00:00:00 +0000

Nondrying, Sticky Hydrogels for the Next Generation of High-Resolution Conformable Bioelectronics

Thu, 01 Oct 2020 00:00:00 +0000

Water Based Magnification of Capacitive Proximity Sensors: Water Containers as Passive Human Detectors

Thu, 01 Oct 2020 00:00:00 +0000

High Resolution Soft and Stretchable Circuits with PVA/Liquid‐Metal Mediated Printing

Tue, 01 Sep 2020 00:00:00 +0000

Fully Untethered Battery-free Biomonitoring Electronic Tattoo with Wireless Energy Harvesting

Sun, 01 Mar 2020 00:00:00 +0000

Untethered Disposable Health Monitoring Electronic Patches with an Integrated Ag$_textrm2$ O–Zn Battery, a AgInGa Current Collector, and Hydrogel Electrodes

Wed, 01 Jan 2020 00:00:00 +0000

EGaIn‐Assisted Room‐Temperature Sintering of Silver Nanoparticles for Stretchable, Inkjet‐Printed, Thin‐Film Electronics

Sun, 01 Jul 2018 00:00:00 +0000