A MEMS-based point-of-care platelet counting system

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Hematology

Background:

• Thrombocytopenia is a significant complication in pediatric patients undergoing chemotherapy for hematological malignancies.
• Frequent laboratory monitoring and emergency room visits for bleeding concerns place a substantial burden on these patients and their families.

Purpose of the Study:

• To develop and evaluate a silicon microelectromechanical systems (MEMS) based point-of-care diagnostic sensor for assessing blood platelet concentrations.
• To create a user-friendly, at-home testing solution for thrombocytopenia management.

Main Methods:

• Design and fabrication of a MEMS sensor utilizing the forces exerted by platelets during clot formation for transduction.
• Integration of the sensor into a small-form-factor system for point-of-care application.
• Preliminary testing and data collection for sensor validation.

Main Results:

• Successful development and initial testing of a MEMS-based sensor for platelet count assessment.
• Demonstration of the sensor's principle based on platelet aggregation forces.
• Feasibility of a single-drop blood test for home use.

Conclusions:

• The developed MEMS sensor shows promise as a point-of-care diagnostic tool for platelet count.
• This technology has the potential to significantly improve the management of thrombocytopenia in pediatric cancer patients.
• Further development could lead to a convenient and accessible home testing solution, reducing patient and healthcare system burden.