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... went straight to his office and began to ponder the nano-needle.
Nano microneedle wafers are made of many materials, such as silicon materials, metal materials, and polymers.
Among them, single crystal silicon has excellent mechanical properties, physical anisotropy and unique piezoresistive effect of semiconductor materials, and has high biocompatibility (can be used for making implantable medical device materials), hardness is superior to stainless steel, and is nanometer. The m ...
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