Implantable biosensors represent one of the most challenging yet exciting areas of biosensing technology. While wearable sensors have transformed health monitoring, implantable sensors offer the potential for continuous, long-term physiological monitoring without many of the limitations associated with external devices.
At Zimmer & Peacock (ZP), we've spent years developing advanced biosensing technologies across multiple form factors, including wearable sensors, microneedles, filament sensors, and implantable devices. Today, implantable biosensors are emerging as a key platform for veterinary health monitoring, research applications, and future healthcare innovations.
Why Implantable Biosensors Are Different
Many people are familiar with wearable biosensors such as Continuous Glucose Monitors (CGMs). These typically use filament-based sensing technologies placed just beneath the skin to provide real-time physiological data.
Implantable biosensors take this concept significantly further.
Unlike wearable devices, implantable sensors must operate reliably within the body for extended periods while:
- Remaining biocompatible
- Minimising biofouling
- Maintaining sensor performance
- Surviving challenging physiological environments
- Delivering data wirelessly
- Operating on limited battery resources
These requirements make implantable biosensor development substantially more difficult than wearable sensor development.
A Decade of Implantable Biosensor Experience
ZP has accumulated close to a decade of experience developing implantable sensing systems.
One of our earliest applications involved implantable monitoring systems for salmon operating in recirculating aquaculture systems. These devices were designed to operate within live fish, transmitting physiological information wirelessly while remaining robust in demanding aquatic environments.
More recently, we have expanded this technology platform to mammalian studies, including implantable glucose monitoring systems deployed in pigs.
This progression from aquatic to mammalian applications has allowed us to build a sophisticated technology stack that combines sensor development, electronics, wireless communication, manufacturing, cloud infrastructure, and biological validation.
Building an Implantable Sensor Platform
Developing implantable biosensors requires expertise across multiple disciplines.
ZP combines:
- 🧪 Chemistry
- 🧬 Biology
- ⚙️ Engineering
- 🏭 Manufacturing
- 📡 Wireless Communications
- ☁️ Cloud Software Infrastructure
As an ISO 13485 contract developer and contract manufacturer, we support projects from early-stage development through pilot manufacturing and, depending on device complexity, into higher-volume production.
We are also unusual in that we maintain:
- Wet laboratory facilities
- Biological testing capabilities
- Engineering development teams
- ISO-classified cleanroom facilities suitable for implantable device production
These capabilities allow us to develop, manufacture, test, and validate implantable biosensors under one roof.
Advanced Implantable Sensor Technology
Today's implantable sensors incorporate significantly more than a simple sensing element.
Modern implantable systems developed by ZP can include:
- Biosensor electrodes
- Power management systems
- Integrated batteries
- Embedded electronics
- Wireless communications
- Data acquisition systems
- Cloud connectivity
The sophistication of these devices extends down to seemingly small features that greatly improve usability. For example, sensors can be designed to activate automatically when removed from their carrier, helping preserve battery life until deployment.
Behind these capabilities lies years of development effort and substantial investment. Across the broader technology platform, tens of millions of euros have been invested to reach the level of maturity seen today.
Wireless Communication for Different Environments
One of the fascinating challenges with implantable biosensors is data transmission.
Communication requirements vary depending on the host animal and operating environment.
Salmon Applications
For implanted sensors used in salmon, traditional Bluetooth communication is not optimal due to signal propagation challenges in seawater. In these situations, ultrasound-based communication systems can be utilised to transmit data effectively.
Mammalian Applications
For land-based mammalian studies, such as pigs, Bluetooth connectivity becomes practical and enables real-time communication between implanted sensors, monitoring systems, and cloud infrastructure.
Overcoming the Challenge of Biofouling
One of the greatest challenges facing implantable devices is biofouling.
Over time, biological material can accumulate on implanted surfaces, potentially impacting sensor performance and limiting implantation duration.
To address this challenge, ZP has collaborated with Safe Implant Technology, whose proprietary coating technology is designed to reduce biofouling and extend implant lifetime.
By combining advanced coatings with robust sensor design, longer-term implantation becomes increasingly achievable.
Collaboration with Aalborg University
Successful implantable biosensor development requires rigorous in vivo testing.
A key collaboration has been with Aalborg University in Denmark, which provides excellent animal research facilities and expertise.
Through this partnership, implantable glucose monitoring systems have been evaluated in pigs, generating valuable real-world data on sensor performance and reliability.
These studies move beyond laboratory testing and demonstrate how devices function under realistic biological conditions.
From the Body to the Cloud
Developing a sensor is only part of the challenge.
Data must be collected, transmitted, visualised, and analysed.
ZP's implantable biosensor platform streams physiological data in real time to the cloud using the Djuli platform.
Useful Links
🌐 Djuli Real-Time Platform
https://djuli.zimmerpeacock.no/
This enables researchers and developers to:
- Monitor sensor performance remotely
- View physiological measurements in real time
- Track multiple animals simultaneously
- Analyse long-term health trends
- Manage study data efficiently
During ongoing studies, data from multiple implanted sensors can be viewed live through cloud dashboards, demonstrating the robustness of the overall system architecture.
Why Veterinary Applications Matter
Veterinary health monitoring is emerging as one of the strongest opportunities for implantable biosensors.
External sensors can be problematic in animals because they can be:
- Removed
- Damaged
- Scratched off
- Dislodged during normal behaviour
Many pet owners have already experimented with attaching human continuous glucose monitors to companion animals, but maintaining reliable placement can be difficult.
Implantable sensors offer a compelling alternative.
By placing the sensing system within the animal, researchers and veterinarians may obtain continuous physiological information while reducing stress and improving welfare outcomes.
Potential applications include:
- 🐷 Livestock health monitoring
- 🐟 Aquaculture monitoring
- 🐄 Precision agriculture
- 🐕 Companion animal healthcare
- 🧬 Veterinary research
The Future of Implantable Biosensing
Implantable biosensors remain one of the most technically demanding areas of biosensor development. Success requires expertise in sensor chemistry, biology, wireless communications, electronics, manufacturing, implantation techniques, cloud software, and data analytics.
At Zimmer & Peacock, years of development work, extensive in vivo testing, and significant technology investment have created a mature implantable biosensor platform capable of supporting demanding veterinary and research applications.
From salmon to pigs, real-time implantable sensing is no longer a future concept. It is happening today.
Learn More
Biosensor Development
🔬 https://shop.zimmerpeacock.com/en-gb/pages/sensors
Chemicals & Solutions for Biosensor Development
🧪 https://shop.zimmerpeacock.com/en-gb/collections/chemical-and-solutions
Contact Zimmer & Peacock
📩 https://www.zimmerpeacock.com/contact
Conclusion
Implantable biosensors represent the next frontier in continuous animal health monitoring. By combining advanced sensing technology, wireless communications, biocompatible materials, and cloud-connected analytics, it is now possible to gather physiological data from animals in real time.
As veterinary, aquaculture, and agricultural industries increasingly seek better health insights and welfare outcomes, implantable biosensors are poised to play a transformative role. With proven deployments in both salmon and pigs, the technology is already demonstrating how continuous in vivo monitoring can improve research, animal welfare, and future commercial applications.
