现有的癌症生物实验通常是在培养皿中进行的,是一个二维环境,而人体是一个三维环境,因此研究人员普遍都认为培养皿中的环境,尚不足以模拟肿瘤细胞是如何侵袭健康组织和器官的。科学家们便提出这样一种设想——是否可以在体外构建一种与人体相似的、微小的三维环境。我国科学家与美国科学家合作,利用微加工和生物物理的技术,在只有拇指指甲大小的生物芯片上, Existing cancer biological experiments are usually conducted in a petri dish, a two-dimensional environment, and the human body is a three-dimensional environment. Therefore, researchers generally believe that the environment in a petri dish is not enough to simulate how tumor cells attack health. Tissue and organs. Scientists have put forward such a concept - whether it is possible to construct a tiny three-dimensional environment similar to the human body in vitro. Chinese scientists cooperate with American scientists, using micro-processing and biophysical techniques, on biochips with thumb-nail size,