Optical Projection Tomography (OPT) is a microscopy technique suited to mostly transparent specimens of ~10 mm. OPT requires the collection of a number of images (projections) of a sample taken from different angles. In practice, this means as rotating a sample around an axis in a precise manner. These images can be fed into mathematical […]
Tag: DIY
DIY Fluorescence Smartphone Microscopy
We’ve covered several portable microscopy setups before, including Foldscope, wooden scope, and our favorite these little UV magnifiers. We like the latter so much because it is capable of both white light, and UV light, and we found we were capable of doing a little bit of fluorescence microscopy on it. That’s where a 2017 […]
Computers on The Cheap
It’s a Technical Tuesday! Today we are going down the rapids of computer purchasing. This is a primer on purchasing computers on the cheap. We start with prebuilt computers (1), then cover acquiring peripherals (2,3), and finally talk about building your own computers (4,5). This is a living document about a volatile topic, so write […]
3D -Fuge: A New Hand Powered Centrifuge
Last year at around this time we covered Paperfuge, a card stock based centrifuge that could spin QBC capillary tubes samples at ~10,000 g. Using the principles laid out with Paperfuge, Gaurav Byagathvalli, Aaron Pomerantz, Soham Sinha, Janet Standeven, and M. Saad Bhamla have come up with 3D-Fuge detailed in a paper on the bioarxiv […]
OMIS: An Open Millifluidic Inquiry System
OMIS is a 3D tool for performing small-scale chemical synthesis and analysis. The system is Arduino-based and consists of an automated syringe pump run by a cheap stepper motor and reaction vessels. The design is meant to allow for fabrication” in one day”, and can pump fluids at rates between 60 and 300 μL/min. The paper, […]