ArticleACS applied nano materials2023
Temperature-Derived Purification of Gold Nano-Bipyramids for Colorimetric Detection of Tannic Acid.
Article in ACS applied nano materials, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Nitrogen, Copper, and Iodine Triple-Doped Carbon Dots as a Dual-Functional Probe for Chemiluminescence Detection of Nickel Ion and Tannic Acid.Luminescence : the journal of biological and chemical luminescence · 2026Article
- Water-soluble binuclear aquo Cu(ii) complex with an amide ligand as an electrocatalyst for the OER, HER and CORSC advances · 2025Article
- Hierarchical FeMikrochimica acta · 2025Article
- Effect of Ni on the performance of Ni-Zn-NC catalysts for CO hydrogenation to DME.RSC advances · 2025Article
- Quantifying Shape Transition in Anisotropic Plasmonic Nanoparticles through Geometric Inversion. Application to Gold Bipyramids.The journal of physical chemistry letters · 2024Article
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Authors and funding
9 authors.
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Abstract
Gold nanostructures have attracted broad attention. Among various nanostructures, gold nanobipyramids have shown great potential in sensing, biomedicine, environmental protection, chemical catalysis, and optics due to their unique physical and optical properties and ease of chemical functionalization. Compared with other plasmonic nanostructures, gold nanobipyramids possess narrow optical resonances, stronger plasmonic local field enhancement, and size- and shape-dependent surface plasmon resonance. However, the synthesis and purification of homogeneous gold nanobipyramids are very challenging. The gold nanobipyramids synthesized via the commonly used seed-mediated growth method have low yields and are often coproduced with spherical nanoparticles. In this study, we reported a temperature-derived purification method for the isolation of gold bipyramids. In the presence of salt, by altering the temperature of the solution, large gold bipyramids can be separated from small spherical nanoparticles. As a result, a yield of as high as 97% gold nanobipyramids can be achieved through a single round of purification, and correspondingly, the ratio between the longitudinal surface plasmon resonance (LSPR) and transverse SPR intensity significantly increases to as high as 6.7. The purified gold nanobipyramids can be used as a colorimetric probe in the detection of tannic acid with a detection limit of 0.86 μM and a linear detection range from 1.25 to 37.5 μM.
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Registered trials
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