Technical Problem1. Evaporation and Osmolarity Shifts: In open-well culture systems and vapor permeable closed systems, media evaporation causes osmotic toxicity especially during long-term electrophysiology experiments that can last days or weeks. Even inside a highly humidified incubator significant evaporation occurs over time. This alters the osmolarity of the cell culture medium, increases salt concentrations and affects electrophysiology, which in cells are driven by ionic gradients. By creating a hermetic, non-evaporative liquid seal, this invention completely halts evaporation and maintains a stable osmotic environment. 2. Contamination and Environmental Cross-Talk: Open designs leave cultures vulnerable to airborne particulate, bacterial or fungal contamination, especially during transport or when handled outside a sterile hood for imaging or electrical recording. The sealed well insert physically isolates the biological sample, protecting it from external contaminants and preventing cross-talk between separate wells. This is important especially when combined with electrophysiology equipment which cannot fully or easily be sterilized due to complex and sensitive electronics.3. Incompatibility of Closed-System Benefits with Legacy Hardware: Researchers looking for closed, tightly controlled fluidic environments have traditionally been forced to abandon standard commercial CMOS-MEA platforms in favor of bespoke microfluidic chips and bespoke electrode arrays. This invention solves this compatibility barrier by offering a retrofit mechanism. Clamping or gluing a base to the exterior of existing, commercially available well and adding sealing to this allows full use of sophisticated commercial equipment.4. This insert eliminates the direct air gap above the cell culture media. Removing this interface completely prevents the water evaporation and subsequent boundary-layer shifts that typically degrade long-term cultures.5. Traditional MEAs must sit inside bulky, expensive incubators to maintain gas and temperature stability. This invention inherits the self-contained environmental isolation of the prior patent. Because gas and fluid exchange are handled through dedicated routing within the closed well, the MEA device can function reliably on a benchtop, inside a microscope chamber or in specialized testing setups without losing environmental control.6. Precise, Multi-Gas and pH Equilibrium: The architecture leverages the closed-system mechanics of the prior application to maintain strict carbon dioxide, oxygen and carbonic acid equilibrium. It allows researchers to introduce targeted gas-controlled fluids or direct gas feeds to regulate pH and oxygen levels precisely at the sensor surface, achieving localized environmental profiles (such as deep hypoxia) that are impossible to maintain in an open petri dish structure.

A soft, implantable electrical access port enables repeatable, direct connections between implanted bioelectronic devices and external instruments.

Reactive oxygen species (ROS), including hydrogen peroxide and peroxynitrite, play dual roles as essential signaling molecules and high-stress markers of cellular damage. However, imaging these volatile species in live biological systems is often hindered by diffusion and poor signal localization. Researchers at UC Berkeley have developed a "tandem" activity-based sensing and labeling strategy that overcomes these challenges. This technology utilizes selective chemical probes that, upon reacting with a specific ROS, undergo a transformation that simultaneously triggers a fluorescent signal and anchors the probe to nearby cellular proteins. By "trapping" the signal at the site of its production, this dual-action mechanism allows for high-resolution, localized imaging of oxidative stress and signaling events within complex cellular environments.

Researchers at the University of California, Davis have developed a machine learning system for accurately separating fetal signals from mixed maternal-fetal photoplethysmography signals acquired non-invasively to enable fetal physiological parameter monitoring.

Researchers at the University of California, Davis have developed a method and apparatus for precise, label-free measurements of reactions at a molecular or near atomic level using an oblique-incidence optical analysis technique.

An advanced wearable bio-electronic device for non-invasive abnormality prediction, early diagnostics, and disease prevention.

A multimodal, wireless wearable device enabling continuous and detailed stress assessment and subclassification.

A breakthrough one-wire EEG cap with embedded electrode chips provides ultra-sensitive, noise-immune, wide-band brain signal acquisition. It enables non-invasive, real-time, high-resolution recording using dry electrodes, ideal for wearable and clinical neuro-technology applications.

The implementation of cost-effective and reliable energy storage solutions, such as redox flow batteries, is often hindered by the complexity and expense of accurately monitoring their state of charge (SOC) and state of health (SOH). To address this, a novel approach using low-cost management systems and methods has been developed for electrochemical cells based on viologen, particularly pyridinium redox flow batteries. This innovation centers on pH signaling and regulation to enable real-time SOC and SOH monitoring. The viologen species' electrochemical processes naturally induce localized pH changes, and by monitoring and regulating the pH within the cell, researchers can obtain immediate, actionable data on the battery's operating condition. This pH-based system offers a simple, integrated, and economical alternative to conventional, often more complex, monitoring techniques.

Researchers at the University of California, Davis have developed a technology that introduces an approach to creating semi-living, non-replicating cellular systems for advanced therapeutic applications.

UC Berkeley researchers have developed a novel dispersion system for agricultural and environmental payloads, including seeds, soil amendments, miniature soil sensors, and so forth. Dispersive packages are biodegradable and biomimetically designed with similarities to natural seeds. Aerodynamic properties control large-area dispersions, while importantly, tunable gyroscopic properties are programmed for penetration parameters, such as depth, upon impact. Payload distribution can be fine-tuned accounting for local soil moisture and grain-size.

Researchers at the University of California, Davis have developed tactile feedback systems that enhance spatial and sensory resolution in sensor arrays through unique signal modulation techniques.

Scaled neural sensing has been pursued for decades. Physical limitations associated with electrical (electrode-based) field recordings hinder advances in both field of view and spatial resolution. Electrochromic plasmonics (electro-plasmonics) has emerged as a rapidly advancing field combining traditional electrochromic materials with plasmonic nanostructures, including recent demonstrations of electrochromic-loaded plasmonic nanoantennas for optical voltage sensing. Existing optical electrophysiology techniques face critical limitations including poor signal-to-noise ratios due to low photon counts from genetically encoded voltage indicators, which have small cross-sections and low quantum yields. Fluorescent voltage indicators suffer from photobleaching, phototoxicity, and require genetic modifications that limit their clinical applicability. Current electrochromic devices also struggle with limited cycling stability, slow switching times, and restricted color options, and conventional plasmonic sensors exhibit inherently low electric field sensitivity due to high electron densities of metals like gold and silver. Current approaches to electro-plasmonics lack stable, high-contrast optical modulators that can operate at sub-millisecond speeds while maintaining human biocompatibility.

This technology introduces a novel approach for bridging force sensing with wireless communication through direct analog force-to-RF conversion provides lower power consumption and lower costs.

A novel device leveraging centrifugal microfluidics to accelerate bacterial growth and rapidly determine antibiotic susceptibility.

This technology enhances the sensitivity of sensors through exceptional points of degeneracy in various circuit configurations.

Researchers at the University of California, Davis have developed a biosensor technology for rapid, sensitive detection, purification, and identification of nucleic acids in complex biological fluids.

A novel circuit design promoting enhanced sensitivity for electromagnetic sensing through exceptional points of degeneracy.

An innovative technique for creating high-sensitivity Whispering Gallery Mode (WGM) sensors through advanced microbubble resonator fabrication.

An innovative system for biometric identification that utilizes intra-body communication for secure authentication.

A revolutionary approach to wearable sensors that significantly extends read-out distances and improves reliability without the need for microelectronics.

This invention developed by UC Berkeley researchers provides a novel FRET-Cal Screening Platform to identify positive and negative modulators of membrane signaling proteins. The platform addresses the need for efficient and reliable methods to screen for compounds that can control the activity of these receptors. The technology utilizes a receptor protein with a Förster resonance energy transfer (FRET) pair, composed of a donor and acceptor fluorophore, to screen for candidate compounds. The FRET pair allows for the direct measurement of changes in protein conformation upon binding, providing a highly sensitive and specific method for identifying potential modulators. This platform offers a significant advantage over traditional screening methods by providing a high-throughput, real-time assay for drug discovery and therapeutic development.

Current α-linolenic acid (ALA)-based medical adhesives are limited by ALA's poor water solubility and poly(ALA)'s hydrophobicity, often requiring elevated temperatures, organic solvents, or complex preparations for delivery to biological tissue. This innovation reports on ALA-based powder and low-viscosity liquid superglues that polymerize and bond rapidly upon contact with wet tissue. Developed by UC Berkeley researchers, the versatile adhesives use a monomeric mixture of ALA, sodium lipoate, and an activated ester of lipoic acid, which grants them high flexibility as confirmed by stress-strain measurements on wet adhesives. The adhesive is cell and tissue-compatible, biodegradable, and can sustain drug delivery as a small molecule regenerative drug was successfully incorporated and released without altering its physical or adhesive properties. Furthermore, the inherent ionic nature of the adhesive gives it high electric conductivity and sensitivity to deformation, enabling its use as a tissue-adherent strain sensor.

This technology introduces a flexible, secure, and scalable approach to creating body area networks (BANs) using textile-integrated metamaterials for advanced healthcare monitoring.

Sensors are used in a multitude of applications from molecular biology, chemicals detection to wireless communications. Researchers at the University of California Irvine have invented a new type of electronic circuit that utilizes exceptional points of degeneracy to improve the sensitivity of signal detection.