Several months ago we wrote a short write up about making a cheap optical shutter out of a hard drive disk controlled via Arduino. Since then we have had two Uniblitz shutters fail. We have now seen 6 Uniblitz shutters seen fail relatively quickly, with different users and different use conditions, over three labs. Even […]
Tag: Articles
ODX: $25 For Turbidity (OD) Measurements
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. […]
$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, […]
OpenFlexure Block Stage: 3D printed sub-micron mechanical precision
OpenFlexure Block Stage is a 3D printed flexure translation stage with sub-micron mechanical positioning. You can get the files to build it on GitHub. The project is 3-axis, short travel, high accuracy spinoff from the stage of the amazing OpenFlexure Microscope which we still haven’t covered, but we thought this stage deserved a post of its […]
OptiJ: Open-source optical projection tomography for $3000
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 […]