3 March 2026 PRESS RELEASE
BIOPIX Artificial Retina: A Biohybrid Sensor That Mimics the Living Retina
Researchers have developed BIOPIX, a retina-inspired biohybrid image sensor array that combines living-like biological liquid environments with organic electronics. In the first demonstration of its kind, the biohybrid and biocompatible retina emulator generated real-time images directly on a display. This advance brings artificial retina vision systems closer to the way natural eyes process light and moves the field forward in the quest to develop future technologies for vision restoration.
Researchers at Tor Vergata University of Rome and collaborators have developed BIOPIX, a retina-inspired biohybrid image sensor that merges organic electronics with a liquid, biology-like environment to more closely replicate how natural eyes process light. For the first time, a hybrid liquid bio/semiconducting retina emulator has generated images on a display in real time. Unlike conventional solid-state cameras, BIOPIX operates at the interface between semiconducting polymers and a water-based physiological medium, mimicking the ionic conditions in which retinal photoreceptors function.
Twelve of the 16-pixel array reproduce rod-like responses for contrast detection, while a central 2×2 cluster simulates cone-like color sensitivity similar to that of the mouse retina. When exposed to light, the device converts signals into real-time grayscale and color images using a custom electronic readout system designed to match the slower, millisecond-scale dynamics of biological ionic cellular responses.
The team say they designed this device to go beyond traditional electronic sensors. By letting organic electronic materials interact with a liquid biological environment, BIOPIX reacts to light in a way that is much closer to how a real retina works in nature, both in how it senses color (spectrally) and how quickly it responds.
Laboratory tests with human mesenchymal stromal cells confirmed the platform’s biocompatibility, supporting its potential for biomedical use. Researchers envision BIOPIX as a scalable retina emulator to study phototransduction, test artificial photoreceptor materials, physiological media, and advance artificial retina prosthetics, potentially improving treatments for degenerative eye diseases and inspiring new forms of artificial vision and neural interfaces.
Results published in "A Bio-Electronic Hybrid Solid–Liquid Pixelated Color Image Sensor Array as a Direct-to-Display Artificial Retina Emulator", Advanced Materials Technologies, v. 11, e01461 (2026).
https://advanced.onlinelibrary.wiley.com/doi/10.1002/admt.202501461
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