Fig. 3From: A new mechanism for efficient hydrocarbon electro-extraction from Botryococcus braunii Real-time microscopic observation during treatment (500 pulses, 10 Hz, and 144 kV/cm) (magnification ×20). a Before treatment; b after 200 pulses at 20 s; c after 400 pulses at 40 s; d after 60 s; e after 100 s; f after 500 sBack to article page