With the help of Quyen Nguyen, a surgeon based at UCSD, Dr. Tsien has tested the hairpin dye on mice that had had breast cancer-induced in their bodies.
Overall, the circuit has a great variety of corners, including hard braking for a hairpin and other corners that flow nicely.
整体来说，这个赛道有各种各样的弯角，包括需要大力刹车的发夹弯和通过顺畅的其他弯角。
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To make use of the MMPs, Dr. Tsien attaches his fluorescent dye, along with some positive charges, to one side of a small hairpin-shaped protein molecule.