{"id":7234,"date":"2025-11-30T17:42:50","date_gmt":"2025-11-30T09:42:50","guid":{"rendered":"https:\/\/www.ukm.my\/imen\/?page_id=7234"},"modified":"2025-11-30T17:42:50","modified_gmt":"2025-11-30T09:42:50","slug":"biosensor-lab-on-chip-lab","status":"publish","type":"page","link":"https:\/\/www.ukm.my\/imen\/biosensor-lab-on-chip-lab\/","title":{"rendered":"BIOSENSOR & LAB-ON-CHIP LAB\u200b"},"content":{"rendered":"\t\t
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BIOSENSOR & LAB-ON-CHIP LAB<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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  • Biosensor & Lab-on-Chip Laboratory focuses on the design, fabrication, and application of miniaturized analytical devices using expertise in Microelectromechanical Systems (MEMS)<\/strong> and Nanoelectronics (NEMS)<\/strong>.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    Head of Laboratory<\/h2>

    Prof. Dato'. Dr. Burhanuddin Yeop Majlis<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t

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    PIC Laboratory<\/h2>

    Anezah Marsan<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t

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    PIC Laboratory<\/h2>

    Mohd Faizal Aziz<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t

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    EQUIPMENT \/ FACILITIES<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    PLASMA TREATMENT MACHINE <\/div><\/span>\n\t\t\t\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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    • A Plasma Treatment Machine is a specialized laboratory or industrial device used to modify the surfaces of materials by exposing them to a low-temperature, highly reactive ionized gas (plasma).\u00a0<\/p>

      • How It Works \/ Principle:<\/b><\/b> The machine operates by generating a plasma\u2014the fourth state of matter\u2014inside a vacuum chamber. A vacuum pump removes air and non-process gases from the chamber to reach a low-pressure environment. A specific process gas (e.g., Ar, O2, CF4, or H2) is introduced into the chamber. Radio frequency (RF) power is applied to electrodes, which energizes the gas molecules. The energy strips electrons from the gas atoms, creating a plasma composed of ions, free radicals, electrons, and neutral species.<\/p><\/li>

      • Key Features & Advantages<\/b><\/p>

        • Precision and Uniformity:<\/strong> Provides highly uniform and repeatable surface modification across the entire substrate area<\/p><\/li>

        • Controllable Surface Chemistry:<\/strong> Allows for precise control over the type of chemical groups introduced onto the surface (e.g., hydroxyl, amino, or carboxyl groups)<\/p><\/li>

        • Ultra-Cleaning Capability:<\/strong> Capable of ultra-fine cleaning to remove invisible organic residues down to the nanoscale, which is crucial for bonding and coating\u00a0<\/p><\/li>

        • Non-Thermal Damage:<\/strong> Operates at low temperatures (non-thermal plasma), allowing the treatment of heat-sensitive materials like polymers and biological substrates without damage<\/p><\/li><\/ul><\/li>

        • Applications: Biomedical devices, microelectronics\/semiconductor, microfluidics and Lab-on-a-Chip, Adhesion Improvement and Adhesion Improvement<\/span><\/b><\/p><\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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          IV\/CV 4 POINT PROBE SYSTEM <\/div><\/span>\n\t\t\t\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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          • A Four-Point Probe System is a tool used to accurately measure the electrical resistivity, sheet resistance, and in advanced configurations, the capacitance-voltage (C-V) characteristics of semiconductor wafers, thin films, and various materials<\/li>

          • How It Works \/ Principle<\/b><\/p>

            Current (I)<\/strong> is sourced between the two outer probes, while the resulting voltage (V)<\/strong> drop is measured across the two inner probes. Since I<\/em> and V<\/em> are measured independently of the high-resistance contacts, the resulting resistivity (\u03c1) or sheet resistance (Rs<\/sub><\/em>) calculation is highly accurate using geometric correction factors. The principle is based on Ohm’s Law<\/strong> (R=V\/I<\/em>).<\/p>

            In C-V configurations, the system measures the capacitance (C) of a device as a function of the applied voltage (V). This principle allows for the calculation of critical parameters like doping concentration, flat-band voltage, and oxide thickness<\/p><\/li>

          • Key Features & Advantages<\/b><\/p>