最近 ,德国科学家报道 ,以一个光脉冲为动力 ,单个分子的收缩可以产生足够使AFM悬臂弯曲的力。这是利用单个人造分子机器把光能转化为机械能的第一例。　　人们对于偶氮苯聚合物在光照下能够在伸展的反式和收紧的顺式之间互变的现象 ,已经知之甚详。慕尼黑大学的生物物理教授H Recently, German scientists reported that by acting as a light pulse, contraction of a single molecule can generate enough force to bend the AFM cantilever. This is the first example of using a single artificial molecular machine to convert light energy into mechanical energy. It is well known that azobenzene polymers are capable of interconversion between stretched trans and tightened cis in the light. Professor of Biophysics, University of Munich