Optical-resolution photoacoustic microscopy is an up-and-coming biomedical imaging approach for finding out a broad vary of illnesses, equivalent to most cancers, diabetes and stroke. However its inadequate sensitivity has been a longstanding impediment for its wider software. Lately, a analysis group developed a multi-spectral, super-low-dose photoacoustic microscopy system with a major enchancment within the system sensitivity restrict, enabling new biomedical purposes and medical translation sooner or later.