Liu Kang, Bu Yanru, Zheng Yuanhui, Jiang Xuchuan, Yu Aibing, Wang Huanting
Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia.
School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia.
Chemistry. 2017 Mar 8;23(14):3291-3299. doi: 10.1002/chem.201605617. Epub 2017 Feb 1.
Gold nanorods (AuNRs) are versatile materials due to their broadly tunable optical properties associated with their anisotropic feature. Conventional seed-mediated synthesis is, however, not only limited by the operational complexity and over-sensitivity towards subtle changes of experimental conditions but also suffers from low yield (≈15 %). A facile seedless method is reported to overcome these challenges. Monodispersed AuNRs with high yield (≈100 %) and highly adjustable longitudinal surface plasmon resonance (LSPR) are reproducibly synthesized. The parameters that influence the AuNRs growth were thoroughly investigated in terms of growth kinetics and soft-template regulation, offering a better understanding of the template-based mechanism. The facile synthesis, broad tunability of LSRP, high reproducibility, high yield, and ease of scale-up make this method promising for the future mass production of monodispersed AuNRs for applications in catalysis, sensing, and biomedicine.
金纳米棒（AuNRs）因其与各向异性特征相关的广泛可调光学性质而成为多功能材料。然而，传统的种子介导合成法不仅受到操作复杂性以及对实验条件细微变化过度敏感的限制，而且产率较低（约15%）。据报道，一种简便的无种子方法可克服这些挑战。可重复合成出高产率（约100%）且纵向表面等离子体共振（LSPR）高度可调的单分散金纳米棒。从生长动力学和软模板调控方面深入研究了影响金纳米棒生长的参数，从而更好地理解基于模板的机制。这种简便的合成方法、LSPR的广泛可调性、高重现性、高产率以及易于放大的特点，使得该方法在未来大规模生产用于催化、传感和生物医学应用的单分散金纳米棒方面具有广阔前景。
