Smart materials and microtechnologies
Research in the deployment of materials such as piezoceramic, ZnO, and conducting polymers, into micro-actuators and sensors for different novel applications.
Current research projects
The aim of this research is to achieve a small energy harvesting device with high harvesting capability that is able to convert vibration energy into electrical energy. This energy harvester allows for various applications, such as powering remote, portable or implanted medical devices without a need for batteries. Harvesting energy from human or animal motion to power wearable electronics is also of particular interest.
Wearable sensors and actuators
The developing fields of wearable electronics and soft robotics have created a strong demand for flexible and stretchable strain sensors. We have been researching on highly stretchable sensor aimed at applications as smart glove, medical sensors, etc. We are currently developing soft-actuators suitable as wearable pumps for drugs dispensing and also as implantable devices.
Advancements in nanomaterials and polymer electronics have made it possible to realise new generation sensors and actuator designs. However, current technology still requires these sensors and actuators to be manufactured separately and attached afterwards onto mechanical structures to complete the overall device. At the same time, the increasing popularity of 3D printing has changed the way prototypes and custom objects are designed and manufactured. We have developed a fabrication platform that will allow design and production of complex custom devices, with integrated sensors and actuators, 3D-printed together in one process. Sensors and actuators will be based on conductive composite materials comprising conducting materials, including electroactive polymers. Such 3D printing technology, utilising printable functional materials, is a novel approach to co-manufacturing of mechanical structures and active components.
The Department of Mechanical Engineering has established a microfabrication lab located in Room 201E-406B. It is used to support research in smart materials and microtechnologies and contains amongst other supporting facilities, the following equipment and capabilities:
- Parylene coater
- Thermal evaporator
- Dektak profilometer
- Oxygen and Ozone plasma cleaning system
- Ovens and high temperature furnace (1200°C)
- Critical point dryer
- Glove box for environment sensitive materials
- High precision electrical measurement systems
- Nano-positioner and prober
- Photolithography set-up, including spin coater and UV exposure system
- RIE etcher
- Specialised printers: micro-reactive printer, 5-axes printer and extrusion printer
- MECHENG 705: Mechatronics Systems (available to Part IV students)
- MECHENG 728: Advanced MEMs and Microsystems
- MECHENG 735: MEMs and Microsystems