They then tested the system with a variety of cells and tiny beads, including some that were large by the standards of optical tweezer work.

• 研究人员用多种细胞和小珠测试这个系统，其中包括一些在光镊标准下较大的样品，并能够控制一个带20微米，或者百万分之一米的空心正方形。