Fig. 7From: Nanoscale engineering of gold nanostars for enhanced photoacoustic imagingPA intensity variations of AuNPs and AuNS over time in polyethylene tubes. PA intensity of (a) AuNPs, (b) AuNS HEPES, (c) AuNS EPPS, and (d) AuNS MOPS (200 µM gold) over time under continuous irradiationBack to article page