Nature CommunicationsUltrasensitive in vivo infrared spectroscopic imaging via oblique photothermal microscopyMingsheng LiSheng XiaoHongli NiGuangrui DingYuhao YuanCarolyn MararJerome MertzJi-Xin Cheng2025-07-02Full textDOI https://doi.org/10.1038/s41467-025-61332-w