Given that tumors take several months to grow, biocompatible systems had to be developed that could release proteins and other large-molecular-weight substances slowly and continuously in the body – something that scientists were convinced was impossible. However, after two years of work, I discovered that I could modify certain types of polymers to release molecules of virtually any size over a 100-day period.
肿瘤需要几个月才能逐渐长大，因此必须研制出一套生物相容性系统，从而缓慢但持续地在体内释放蛋白质和其他大分子量物质。科学家们坚信上述目标可以实现。但经过两年的研究，我发现可以改良特定种类的聚合物，在100天内释放几乎任意大小的分子。