Extended Data Fig. 7: Recorded signal intensity of the lock-in amplifier x and y channels over time in faecal samples subjected to continuous bleaching of the entacapone photothermal signal.
From: The Parkinson’s disease drug entacapone disrupts gut microbiome homeostasis via iron sequestration

a. Signal intensity of the lock-in amplifier y channel (corresponding to photothermal signal) in samples incubated with ENT-HI and D2O. b. Signal intensity of the x channel (corresponding to SRS signal and its background) in samples incubated with ENT-HI and D2O. c. Signal intensity of the SRS x channel (corresponding to SRS signal and its background) in samples incubated with no drug, but with D2O. Each dot represents the average signal intensity of 20 microbiota cells.