Ultra-low temperature freezer and dry ice maker

We are a group of behavioural neuroscientists who work on mammalian, avian and insect model systems, using a range of methods that require us to store samples at ultra-low temperatures (-80oC). Our studies on a range of nervous systems and tissues require us to generate and maintain tissue and tissue extract samples, reagents, and antibodies. These are all highly vulnerable and they are also very expensive, either to purchase or because we have invested a large amount of time or other human resources in collecting them. All need to be stored at ultra-low temperatures. A -80oC machine formerly available to us is no longer available, and we have only temporary access to an existing freezer belonging to a colleague who needs it for her own program. This is the only machine in our department. The replacement we now seek is therefore urgent both because we lack sufficient storage space at this temperature for all our needs, and because if the one working instrument, to which we have only short-term access, were ever to break down, we would lack any access to ultralow temperatures whatsoever. We are not able to transport frozen samples to nearby departments or buildings. We also need access to a dry-ice (solid CO2) machine to freeze specimens rapidly prior to storage. This cryogenic duo of equipment will support the research programs of four co-applicants and their undergraduate, graduate and postdoctoral trainees, at different career stages, whose programs converge on the neural mechanisms of behaviour and immunity.