参考文献：Stealth-like polysarcosine-modifified nanoparticles with low dye doses and long blood circulation for effiffifficient breast cancer pulmonary metastasis imaging† Shangyu Chen,a Peng Zhou,b Wan Yang,a Danni Hu,a Pengfei Chen,a Pengfei Sun, *a Jun Ling *b and Quli Fan *a，Biomater. Sci., 2023, 11, 4644–4651，DOI: 10.1039/d3bm00200d