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The study of nanoscale materials in recent years has been extensive, particularly with respect to metallic NPs. Underpinning the significance of nanoparticulate materials in electroanalysis are the very specific properties which may be exhibited at the nanoscale but which are not typical of the corresponding bulk material. These include enhanced diffusion based on convergent rather than linear diffusion at the smaller NPs, high active surface area, improved selectivity, catalytic activity, higher signal-to-noise ratio and unique optical properties. ÇëÎʵڶþ¾äÖеġ°enhanced diffusion based on covergent rather than linear diffusion¡±ÊÇʲôÒâË¼ÄØ£¿ »¹ÓÐÌáµ½ÄÉÃ×Á£×ÓµÄÐÔÖÊÓÐÒ»Ìõ¡°enhanced mass transport¡±£¬Õâ¸öÓÐûÓÐרÃŶÔÓ¦µÄ·ÒëÄØ£¿ ¸Ðл£¡ |
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