Science Buddies: "Ask an Expert"

Hello, I am Stacy, a junior, who is doing a research on the effects of oxybenzone (primary sunscreen chemical) on the bioluminescence of the dinoflagellates, Pyrocystis fusiformis. In order to measure the bioluminescence of the dinoflagellates, I need a light sensor. I heard about the vernier's light sensor but my school teacher who has it wouldnt be able to let me use it. I looked for some light sensors to see if I could buy them but they were very expensive (because of the Lab Pro I had to buy with the sensor). Since I am a student, I am looking for a light sensor that has a low price yet is sensitive enough to measure the bioluminescence. Could you please recommend me a light sensor that meets my needs or ways to use/borrow light sensors?

Thank you,

Sincerely,

Stacy Ahn

Hey Stacy,

I'm not entirely sure what your budget looks like, however, after doing some research for you, I have found a possible solution. It's probably not optimal (Especially if you have no coding background), but you could try making your own light sensor using this Arduino guide (http://www.instructables.com/id/Highly- ... ht-sensor/). Its only 70 something dollars, including a data collecting sheet (so you don't need to buy Lab Quest or Lab Pro), and I've worked with Arduino UNO products before, and they're very user-friendly (easy to build and code with). There are also lots of Arduino forums where people have compiled the correct code for projects such as this one (if you have limited background and are stuck). Let me know if you have any other questions. In the meantime, I'll keep looking for other light sensors, and an easier solution.

Thanks.

Will

Oh okay I see thank you so much!