# How to make a photo-reactor?

**URL:** <https://accelerated-discovery.org/t/how-to-make-a-photo-reactor/220>\
**Category:** Tools\
**Created:** [June 6, 2024, 8:27pm UTC](https://accelerated-discovery.org/t/how-to-make-a-photo-reactor/220 "2024-06-06T20:27:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![OwenMelville](https://avatars.discourse-cdn.com/v4/letter/o/9f8e36/32.png) [@OwenMelville](https://accelerated-discovery.org/u/OwenMelville)\
**Post date:** [June 6, 2024, 8:27pm UTC](https://accelerated-discovery.org/t/how-to-make-a-photo-reactor/220/1 "2024-06-06T20:27:01Z")

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I am interested in making a photo-reactor (for 8 mL vials). Here is some information I have already thought about:

1. Fairly high power is required to induce reactions (~1W or greater)
2. A high power LED requires control that accomodates higher current
3. High power LEDs are usually single wavelength, RGB LEDs are weak and white LEDs inconsistent
4. High power LEDs may produce heat that needs to be dissipated

So - if I want photo-reactors to promote crosslinking or chemical reaction, is the way to go to make a single reactor for each wavelength? What control would you use (eg to hook up to a Raspberry Pi)? What LED? How have other people thought about these various constraints to design flexible photo-reactors?

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**Author:** ![sgbaird](https://yyz1.discourse-cdn.com/flex003/user_avatar/accelerated-discovery.org/sgbaird/32/341_2.png) [@sgbaird](https://accelerated-discovery.org/u/sgbaird)\
**Post date:** [June 6, 2024, 8:32pm UTC](https://accelerated-discovery.org/t/how-to-make-a-photo-reactor/220/2 "2024-06-06T20:32:22Z")

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Maybe the [Wisconsin Photoreactor Platform](https://github.com/uw-madison-chem-shops/wisconsin-photoreactor/) [[manuscript](https://pubs.acs.org/doi/10.1021/acs.orglett.1c01910)] could be a relevant resource? (I [came across this solution](https://accelerated-discovery.org/t/how-to-make-a-photo-reactor/220/2) via the GOSH forum)

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**Author:** ![OwenMelville](https://avatars.discourse-cdn.com/v4/letter/o/9f8e36/32.png) [@OwenMelville](https://accelerated-discovery.org/u/OwenMelville)\
**Post date:** [June 6, 2024, 9:57pm UTC](https://accelerated-discovery.org/t/how-to-make-a-photo-reactor/220/3 "2024-06-06T21:57:17Z")

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I love their design! I think this is a good starting point

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**Author:** ![OwenMelville](https://avatars.discourse-cdn.com/v4/letter/o/9f8e36/32.png) [@OwenMelville](https://accelerated-discovery.org/u/OwenMelville)\
**Post date:** [June 26, 2024, 8:32pm UTC](https://accelerated-discovery.org/t/how-to-make-a-photo-reactor/220/4 "2024-06-26T20:32:03Z")

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Update here is my design

 ![image](https://canada1.discourse-cdn.com/flex003/uploads/accelerated_discovery/original/1X/6e7d46b84754f2c05c0b29c8cb73d7cb2e06fb70.jpeg)