TEM检测显示，被PEG和叶酸修饰前后的纳米颗粒均具有良好的弥散性。
TEM analysis showed the well-dispersed nanoparticles before and after they were coated with PEG and folic acid.
研究结果表明：家蚕对颗粒人工饲料的嗅觉反应和摄食反应与蒸煮切片饲料无明显差异，具有良好的适口性；
The results showed that olfactory response of silkworm on pellet and sheet artificial diet had no significant difference, and there were good palatability.
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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