Introduction to Soft Lithography

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This is the second part to my first post about Hard Lithography (Wafer Fabrication). I’m going to just briefly cover soft lithography techniques.   Polymer Materials vs. Glass for BioMEMs Glass has well known surface and electro-osmotic properties for microfluidic applications. Polymers also have some similar properties, such as optical transparency and biocompatibility, but also have a few advantages and disadvantages.… Read more →

“Smart” Polymers and their Stimuli

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Smart Polymers are polymers that respond to characteristics of their environment such as pH, temperature, calcium, magnesium, organic solvents, magnetic field, electrical potential, IR radiation and UV radiation. Polymer responses can include altering color or transparency, becoming conductive or permeable to water or changing shape (shape memory polymers).   Below is a table I made of common polymers and their stimuli, based… Read more →

Hog Redesign

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When I was taking CS 61a at UC Berkeley (Python, Scheme, and SQL) I had to do a project called Hog. The game of Hog has a few interesting rules (which I detailed below in a handy PDF) but notably the GUI we were provided was much too ugly to go un-redesigned. Here’s my redesigned GUI, with the “before” below.… Read more →

An Introduction to Wafer Processing

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Here’s a brief introduction to Silicon Wafer Processing I wrote (based on Chapter 2 of Fundamentals of BioMEMS and Medical Microdevices by Steven S. Saliterman). Silicon dioxide Film Growth on Silicon Wafers Silicon dioxide film can be produced through thermal oxidation. This can include dry, wet or pyrogenic oxidation. Dry oxidation uses rapid thermal annealing to react pure silicon with oxygen gas… Read more →

Pi Finds Food

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One of my best friends, Zach, and I really like cooking adventures but always spend the majority of the time sifting through bookmarked food links. I realized it’d be a lot faster to pick if we could see pictures of the food, so I made a tumblr to organize all the recipes.   Search for categories using the tags at… Read more →

The Future of Medicine is Found not Invented

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I’ve realized I’m incredibly passionate about injecting the beautiful, vibrant startup industry into Medicine on a fundamental level. Technology in the Medical Industry tends to be an sluggish 5 year turn around for approved projects. The majority of the startup industry strives to work a little bit faster, with year long turn around. My philosophy is to attempt to mimic this… Read more →

South Africa

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thirtyseven

 

These are a small subset of the images I took while I visited Africa in 2010.

Feel free to use them, but please credit me! I can also send you higher resolution images if you message me.

 

 

Wait-Hate

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A project from my novice web design period, I helped out a few of my friends with a website for scheduling classes. www.wait-hate.com   Some Images from the Facebook page I had made:   Read more →

Carbon Holey Film for Cryo-TEM

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This carbon holey film was made from a silicon wafer template I fabricated. I made the wafer template and the imaged sample is carbon film Dr. Kenneth Downing made using the template. Credit to the UCB Nanolab, for tools and guidance. This was my first experience with wafer fabrication, but definitely not the last. This technique is not fully perfected… Read more →