A couple of weeks ago we covered MicrobeMeter. At $420 it’s not exactly pennies, but you can buy it pre-built or as an easy DIY kit. For a similar price, we also covered a user friendly low-cost turbidostat. But now we are aware that there is a cheaper option. A much cheaper option. Ganga C. […]
Category: Articles
Stimjim: Open Source Electrical stimulation for $200
Neural stimulators can cost thousands of dollars. But why buy them when you could build a StimJim for just $200? StimJim is a dual-channel open-source electric stimulator that combines both function generation and electrical isolation. It has two electrically isolated output channels capable of generating up to +-3mA or +-15V pulses as short as 20 […]
Precision for $100: The OpenFlexure Microscope
The OpenFlexure Microscope is an open-source 3D-printed microscope, based off a precise flexure translation stage. If you’re making them in bulk and without the high-res parts, the per-unit price is probably below $100. If you’re just putting together one, the price will probably come to more like $200 and you’ll find yourself with a lot […]
$2 microfluidic pumps made of latex balloons and stockings
Generally, microfluidic systems require an external pump system to operate. Self-sufficient microfluidic systems are microfluidic systems that have all the components they need on the microfluidic device itself. This is a key concept in lab on a chip designs (the devices from whence this website puns its name). A paper from Peter Thurgood, Sergio Suarez, […]
A qPCR device for $300
A real-time polymerase chain reaction (real-time PCR), or quantitative polymerase chain reaction (qPCR), is a modification to normal PCR where one monitors the amplification of a targeted DNA molecule during the PCR. We’ve written before about our favorite cheap solutions for PCR, but check out this interesting paper on building your own quantitative-PCR (qPCR) machine written by Geoffrey Mulberry, […]