用光化学方法制备金纳米颗粒。

Au nanoparticles were prepared by photochemical methods.

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纳米金颗粒具有独特的物理、化学性质和良好的生物兼容性，已广泛应用于生命科学研究中的示踪技术。

The nano-gold particles which feature unique physical, chemical property and biological compatibility, has been widely used in the tracer technology in life science research.

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金纳米颗粒作为一种性能优异的标记物应用广泛。

Gold nanoparticle has been widely used as a good labeling substance.

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