Fig. 5
From: Microfluidic techniques for enhancing biofuel and biorefinery industry based on microalgae
Screening of intensity, time variance, and spectral composition of irradiance on 238 microreactors [21]. a Schematic of the multiplexed pixel-based irradiance platform, consisting of a PDMS-on-glass cell culture chip, a programmable LCD screen and an LED array backlight. b Pixels directly below each incubation microreactor are individually controlled to project the desired irradiance. The irradiance intensity, time variance and spectral composition are each tuned based on experimental requirements. The PDMS is illustrated as transparent for clarity; in all experiments it is cast black (opaque) by adding graphite