SUB-MM FLUIDIC PLATFORM FABRICATION USING 3D PRINTER FOR SAMPLE OBSERVATION AND SENSOR INTEGRATION

• Main Author: Erli Adhawiyah, Rafita
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/55421
• Institution: Institut Teknologi Bandung

Microfluidic is a science and system technology that processes and manipulates a small amount of fluid in a channel with tens to hundreds of micrometers. This technology has the unique features and characteristics of fluid because of the manipulation that can be performed. Thus, microfluidic has many benefits in their application in both biology and chemistry research fields. Regardless of its benefits and advantages, this technology has constraints in terms of its fabrication. The standard fabrication method of microfluidics tent to have a high cost, timeconsuming, and still have the risk of failure from the final fabrication result. In this research, a microfluidic device will be fabricated as an observation chamber and sensor integration. This research will focus on the fabrication of microfluidic devices using a more time and cost-efficient method, the 3D printing method. The effect of the 3D-print parameters on resolution and accuracy will be determined. Besides, the performance and characteristics of the microfluidic devices will also be determined. Through this experiment, the 3D printed fabrication method able to form a fluidics platform up to sub-mm (0,5 – 1 mm) regimes and large microfluidics (100 – 500 µm). The smallest dimension of the observation chamber fabricated in this experiment is 0,55 mm with exposure time 6 s and vertical print orientation. For flow-cell, the smallest dimension that successfully fabricated is 0,3 mm with exposure time 6s and horizontal print orientation. Based on this experiment, the hydrophilic surface characteristic was found on 3D printed fluidic platforms with an average contact angle is 62,43º. Flow test showed that both observation chamber and flow-cell have good coverage and no leakage. This test also indicated that laminar flow occurred on both fluidic platforms for water with a velocity of 0.189 x 10-3 m/s and a Reynolds number of 0,105.