Scheme 1From: Highly stable organic photothermal agent based on near-infrared-II fluorophores for tumor treatmentThe machenism of developing NIR-II fluorophores and PTI guided tumor PTT. a IPET and steric relaxation effect for developing stable NIR-II fluorophores based on aza-BODIPYs. b Schematic of the preparation of stable NIR998 NPs and their photothermal imaging and therapyBack to article page