Automatic Bio-MEMS Smart Drug Delivery System

Traditional medicine injection is done by medical professionals. Patients need to see doctors or nurses for medicine injection. This brings inconvenience for the patients and increases the cost of medical care. Many senior patients with chronical diseases may need to inject multiple medicines everyday. Remembering the sequence of what medicine to inject at what time is not an easy job. Some medicine (such as insulin for diabetic patients) need to be delivered with precise dosage control according to the patient’s real-time need. Manual injection by rough estimation may lead to under-dose or overdose. All these made the medicine delivery a complicated and challenging task. In this research, a smart drug delivery system which can automatically inject the medicines according to preprogrammed sequence is proposed. It consists of a micropump, micro drug reservoirs and microneedle array integrated with a smart control circuitry. It can deliver multiple medicines with precise dosage control and proper timing. It allows the patients to injection medicine anytime anywhere automatically without human interference. It makes the medicine injection a worry-free process. The proposed smart drug delivery system leads to improved efficiency and it is expected to bring revolutionary change to the current medicine delivery technology

A Novel Reconfigurable Multi-Input Multi-Output (MIMO) Micropump for Micro Drug Delivery System

Micropumps are important bio-MEMS (bio-Microelectromechanical Systems) devices used to drive microfluid to flow along microchannels. They are widely used for Micro Total Analysis System (μTAS), Lab-on-a-chip, micro drug delivery systems and many other applications. A typical micropump has only one inlet and one outlet. In this poster, a reconfigurable multi-input multi-output (MIMO) micropump for micro drug delivery application is reported. The proposed micropump has six inlets and six outlets. The micro-valve in each inlet and outlet can be controlled individually. As a result, microfluid can be pumped in from any (or multiple) inlets(s), and pumped out to any (or multiple) outlet(s). Piozoelectric actuation is used in the micropump design. The proposed MIMO micropump can be used for multi-drug delivery system and other applications

Portable Particulate Matter (PM) Sensor for Air Pollution Monitoring

Atomospheric particulate matter (PM) are tiny airborne pollutants floating in the air. They come from construction materials, dust, smoking, cooking, automobile exhaust, charcoal power plant, etc. Particulate matter pollutants are potential threat to human health. Particulate matters with diameter of 2.5μm or less are called PM2.5 and they are especially harmful for human respiratory system. They can penetrate into deeper part of lungs and human body does not have a mechanism to repel them out. Long term exposure to high concentration of PM2.5 leads to mesothelioma, lung cancer, bronchitis, heart attacks and many other diseases. Air pollution is also becoming a serious problem in many developing countries due to their increased activity in developing the economy. Traditional PM detectors are heavy, bulky and expensive. As people are becoming more and more aware of the health threat of air pollutants, a low-cost and portable PM sensor is in great demand. In this poster, a particulate sensor based on MEMS (Microelectromechanical Systems) technology is proposed. Due to MEMS technology, it has the advantages of small size, low weight, low cost and high sensitivity. People can easily carry it to monitor the air quality anywhere they go. This can protect users from potential exposure to the polluted air in-door or during travel. The PM sensor was designed and its function is verified with COMSOL simulation