One method is to encapsulate hemoglobin inside lipid vesicles about 0.2 microns (millionths of a meter) in diameter. This technique also increases the circulation time.

• 一种方法是将血红蛋白包裹在直径大约为0.；2微米(百万分之一米)的油脂泡囊中，这项技术还能提高循环时间。