We have no spectrometer assembled yet. Actually we have just cutted the pieces by laser cut and collected the necessary diodes from old scanner devices. We intend to finish it as soon as possible.
Our bioreactor is not ready yet, but our plan is to build it using algae and light so they can survive well. We now have a partnership with some researchers of the University of São Paulo wich work with bioreactor and are also interested in building their oun devices with a lower cost.
A centrifuge has many applications inside the laboratory, although it´s role is always the same: to make use of the centrifuge force to separate or purify samples.
In the constriction fo our centrifuge we built it, printed the cage for the tubes and puted it all together with the rotor. However, we had a problem with the Arduino code while trying to make it work. After some days we had help from an experienced guy in the issue (Arduino) then it all went well in the end.
A sterile hood is essential for keeping the purity of the environment and avoiding other microrganisms of getting into our experiment. The idea is to keep the air from outside, well… outside and vice versa.
During the construction of our sterile hood we had some problems because of a delay in the delivery of the materials so we couldn´t testit yet. But, the mechanisms seems to be working perfectly.
The plans for this week are basically BE AN ARTIST! At least that is how I feel when preparing colored culture medium to performe the technique called Yeastogram. The idea is to grow yeast in a specific shape using a stencil and UV light. The stencil defines where the light can pass through and where it cannot, then the colonies grow just where the light couldn´t reach them, while the other died due to the huge amount of DNA damage caused by the full-of-energy rays. Yeah, I agree it´s AWESOME! The original suggestion was to use active coal to give the medium some color but I also used Methylene Blue and Safranin. I must say the results were quite satisfying, even the work is not co
Up to now, we couldn´t make the yeastogram to work but we keep trying. After some discussions and chating with some other people I suppose it might have gone wrong because of the differente sprectra of UV, even I knwe our lamp (we didn´t use the Led) was about 400nm. Also it was told me the distance between the lamp and the plates migh have been an important factor in the experiment. I am not sure yet if the stencil we used is allowing the passage of the light.
As part of science development and expression of the curiosity caracteristic of the human being, the microscopic world has also been investigated for the last centuries. The main problem is the difficulty of one to obtain these equipments, mostly in Brazil, due to expensive taxes and hard access to this kind of information. In this context, Biohack Academy has provided us with a low cost model of microscope, easy to do by yourself and adaptable according to your needs and creativity.
Here are some pictures of my microscope and some samples I was able to magnify using it