In applications such as sports wearables or food monitoring systems, electrochemical sensors are currently an attractive alternative to other detection methods, mainly because of their ability to detect and quantify different types of biomolecules in real time. However, their adoption is limited mainly by the cost of the materials used, which in many cases are single-use and require complex manufacturing processes. This combination of high price and low reusability hinders scalability and makes it difficult for these technologies to reach a wider market.
In this context, a group of researchers from the Universitat Politècnica de Catalunya have developed a new method for obtaining electrochemical biosensors using non-conductive, conventional polymers.
The method allows conventional polymers such as polylactic acid (PLA) to be transformed into electrically sensitive materials suitable for biosensing applications.
The process starts with PLA discs obtained through 3D printing that undergo a two-stage surface modification: first, an electrothermal reorientation that alters the internal organization of the polymer, followed by activation using plasma that modify its surface. This combination gives the polymer electrochemical properties, allowing it to be integrated into sensors capable of detecting biomolecules.
The result represents a highly versatile alternative for the development of sensors across different industrial sectors, from quality control (enabling the detection of biomarkers, contaminants and pathogens in consumer products), to wearables (monitoring biomolecules related to performance and recovery).
The technology has been validated through a proof of concept in the laboratory with 3D-printed PLA discs, subjected to electrothermal reorientation and plasma treatment. Electrochemical characterization confirmed its response to electrical stimuli and its ability to detect dopamine. The team is working on optimizing the sensitivity of the biosensor and scaling up industrial production.
Benefits:
- Offers a new method for obtaining biosensors from conventional polymers.
- Versatile process applicable to polylactic acid, polypropylene and other polymers.
- Enables electrochemical sensing of different biomolecules.
The represented institution is looking for a collaboration that leads to potential licensees or partners and validate the commercial interest in the technology.
Institution: Universitat Politècnica de Catalunya (UPC)
TRL: 4
Protection Status: Protected through a European patent application (EP24382867)
Contacto: Ana Carlota de la Cruz / a.cruz@viromii.com