为满足显微成像领域的多样化需求,解决实际应用中成像质量与成像时间之间的矛盾,提出一种基于数字微镜器件的多分辨显微关联成像方法。该方法利用LED光源作为背景照射光源,对科研级荧光正置显微镜原光路改装设计为关联成像光路,采用多分辨Hadamard优化矩阵作为数字微镜器件的预置图样,实现了生物组织样品的连续多分辨成像。实验结果表明,多分辨显微关联成像系统的分辨率可达218 nm,单组测量后可同时输出8组不同分辨率图像,能够根据实际应用中不同图像质量需求选择不同的分辨率,减少成像时间和存储空间,极大地提高了显微成像的灵活性。这种新型多分辨显微关联成像方法可以扩展至细胞筛选、细胞实时成像等领域,对推动关联成像在细胞和生物组织显微成像领域的应用具有重要意义。

In this paper, we prepared the nanoparticle drug carrier system between nanoparticles — chitosan and Epigallocatechin-3-O-gallate (EGCG) for breast cancer cell inhibiting application. For this drug carrier system, chitosan acts as a carrier and EGCG as a drug. Which were systematically characterized and thoroughly evaluated in terms of their inhibition rate and biocompatibility. We also did a cell scratch test and the result indicated that the chitosan-EGCG nanoparticles have inhibitory effect on the growth of breast cancer cells. The inhibition rate could reach up to 21.91%. This work revealed that the modification of nanoparticles paved a way for specific biomedical applications.