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首页> 外文期刊>RSC Advances >Graphene oxide wrapped gold nanorods for enhanced photo-thermal stability
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Graphene oxide wrapped gold nanorods for enhanced photo-thermal stability

机译：氧化石墨烯包裹的金纳米棒可增强光热稳定性

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摘要

A nanocomposite of gold nanorods coated with nanosized graphene oxide (GO-GNRs) was fabricated in an ammonium hydroxide solution and its photothermal stability was investigated upon exposure to near-infrared (NIR) light irradiation. The optical property and morphology of the GO-GNRs nanohybrids remained unchanged after 4 repeated NIR exposure cycles, which is considerably stable compared with the as-synthesized gold nanorods. In addition, the GO-GNRs nanohybrids showed a superb reproducibility of photothermal performance and an excellent colloidal stability. Such graphene oxide modified gold nanorods with enhanced photothermal stability are well suited for further biological applications such as sensing, bioimaging and photothermal therapy.
机译：在氢氧化铵溶液中制备了涂覆有纳米级氧化石墨烯（GO-GNRs）的金纳米棒的纳米复合材料，并在暴露于近红外（NIR）光照射下研究了其光热稳定性。经过4个重复的NIR暴露循环，GO-GNRs纳米杂化物的光学性质和形态保持不变，这与合成的金纳米棒相比相当稳定。此外，GO-GNRs纳米杂化物表现出光热性能的极好的可复制性和出色的胶体稳定性。这种具有增强的光热稳定性的氧化石墨烯修饰的金纳米棒非常适合于进一步的生物应用，例如传感，生物成像和光热疗法。

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