[an error occurred while processing this directive]
基于动态有机钆纳米颗粒的T1-T2双模态MRI造影剂
张菊敏1,2,陈世桢1,2,*(),周欣1,2
Dual-modal MRI T1-T2 Contrast Agent Based on Dynamic Organic Gadolinium Nanoparticles
Ju-min ZHANG1,2,Shi-zhen CHEN1,2,*(),Xin ZHOU1,2

图6. 调节pH后不同反应时间的有机钆纳米颗粒的(a) r1、r2和(b)弛豫比（r2/r1）

Fig.6. Values of (a) r1, r2, and (b) relaxation ratio (r2/r1) of Gd-nanoparticles at different time points after adjusting pH