Project:Biohardware
From London Hackspace Wiki
It's becoming pretty obvious that the basic molecular biology workflow requires some equipment that is not typically available from the local supermarket, and that having and understanding the right tools really makes a difference in molecular biology and experimental science.
This group focuses on building, repairing and using biohacking hardware.
A list of current projects are
OD600 handheld unit
This is a project to create a cheap hand held unit to determine the OD600 level of a biological sample. Typically this is used for determining mid-log phase of bacterial growth in molecular biology.