Nanodevices - Intro to Biomedical Engineering

Explore microscale properties driving MEMS, including surface area to volume, electric fields, and high resolution for sensing. Scaling laws and computer-integrated manufacturing cut costs and enable low power devices.

learn how to determine Miller indices from intercepts, using reciprocals and common denominator adjustments, with a step-by-step example of obtaining (1 1 0) and handling fractions and negatives.

Explore how silicone nano device applications leverage optical fibers, MEMS sensors, capillary electrophoresis, and accelerometers. Learn how silicone-based components transport light, measure pressure, and detect motion in nano sensing.

Explore photoresists as light sensitive masking materials used to pattern silicon wafers through positive and negative resists, enabling surface and bulk micromachining, lift-off, and sacrificial-layer techniques.

Thermal oxidation forms a thin oxide layer on silicon wafers in a high-temperature furnace, enabling nanowires and nanostructures with high resistivity and clean, efficient fabrication using air, water, and heat.

Define microfluidics as the control and manipulation of fluids in small channels, where surface forces dominate diffusion, viscosity, and shear stress; explore devices and applications across nano devices, biology, chemistry.

Soft lithography enables simple prototyping of micro channels and microfluidic components by casting a soft polymer over a patterned mold, offering biocompatible, gas-permeable channels while mold size constrains channel dimensions.

Review chapter five of nanodevices with a quiz overview on microfluidic components, flow and drag, pressure driven flow, mixing, separation, focusing, stretching, soft lithography, and valves.

Explore how surface tension, the force from particle attraction on a liquid's surface, can be tuned via thermal, chemical, and electrical methods.

Explore electrowetting, where an electric field tunes surface tension and contact angle to control wetting, enabling waterproof surfaces and responsive surface energy using the Young-Dupré framework.

Explore electroosmosis and its role in capillary electrophoresis. Learn how applied potentials move liquids through porous microchannels, with advantages and the need for careful monitoring.

Explore three cell types in nano device research—mammalian, bacteria, and viruses—focusing on viral RNA detection via RT-qPCR and protein and antibody detection methods.

Discover how p-n diodes form via diffusion of holes and electrons, create a depletion zone through band bending and a built-in field, and regulate current with reverse and forward bias.

Compare auto and Kretschmann configurations for measuring surface plasmon resonance, detailing metal film thickness, air dielectric gaps, and how evanescent waves excite plasmons and reveal angle shifts.