纳米技术l
纳米技术
纳米(nm 即毫微米 长度的度量单位 “矮委小(希腊文 一纳米等于十亿分之一米的长度 是氢原子直径的10倍 万分之一头发粗细
纳米（nm） “矮小”（希腊文） 一纳米等于十亿分之一米的长度 是氢原子直径的10倍 万分之一头发粗细 长度的度量单位 即毫微米
Definition of nanoscience The word" means 10-9 so a nanometer is one billionth of a meter one definition of nanoscience is that it concerns itself with 卩yy the stu山 f objects which are anywhere from I mm hundreds to tens of I micron nanometers In I nanometer
原子簇(团簇) cluster c60 ◆ Roundest and most symmetrical molecule known to man ◆ Compressed- becomes stronger than diamond ◆ Third major form of pure carbon ◆ Heat resistance and ◆D=07nm electrical conductivity
原子簇（团簇）cluster C60 Roundest and most symmetrical molecule known to man Compressed – becomes stronger than diamond Third major form of pure carbon Heat resistance and D＝0.7nm electrical conductivity
红血球:200-300nm 细菌:200-600nm 病毒:几十纳米
红血球：200-300nm 细菌： 200-600nm 病毒： 几十纳米