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Surfactant (Bi)Layers on Gold Nanorods
Langmuir, 2011Gold nanorods in aqueous solution are generally surrounded by surfactants or capping agents. This is crucial for anisotropic growth during synthesis and for their final stability in solution. When CTAB is used, a bilayer has been evidenced from analytical methods even though no direct morphological characterization of the precise thickness and ...
Gómez Graña, Sergio +6 more
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Biofunctionalization of gold nanorods
Pure and Applied Chemistry, 2010Gold nanorods (NRs) are promising nanomaterials for biotechnology innovations that include photoassisted drug delivery, gene therapy, noninvasive cancer detection, and ultrasensitive biodetection. Owing to their unique geometry, Au NRs exhibit surface plasmon (SP) modes in the near-infrared (IR) wavelength range—ideal for carrying out optical ...
Sung-Yeon Hwang, Andrea R. Tao
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Gold Nanorods are Selective Cytotoxic Agents
Anti-Cancer Agents in Medicinal Chemistry, 2022Background: Gold nanorods (GNRs) are very promising agents with multiple applications in medicine and biology. However, the cytotoxic effects of GNRs have not been fully explored. Objective: Therefore, the main objective of this study was to determine the selective cytotoxic effect of GNRs towards several human tumor cell lines.
Mohamed El Gendy +2 more
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Development of gold nanorods for cancer treatment
Journal of Inorganic Biochemistry, 2021There has been growing interest in the application of gold nanorods (GNRs) to tumor therapy due to the unique properties they possess. In the past, GNRs were not used in clinical treatments as they lacked stability in vivo and were characterized by potential toxicity.
Qida, Zong +4 more
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Chemistry of Materials, 2005
Gold nanorods have been stabilized, conjugated to antibodies, and characterized for biological applications. The stabilizing surfactant bilayer which surrounds gold nanorods was replaced by thiol terminated methoxypoly(ethylene glycol) so that the nanorods are stable in buffer solutions free of surfactant. Nanorod bioconjugation was accomplished with a
Hongwei Liao, Jason H. Hafner
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Gold nanorods have been stabilized, conjugated to antibodies, and characterized for biological applications. The stabilizing surfactant bilayer which surrounds gold nanorods was replaced by thiol terminated methoxypoly(ethylene glycol) so that the nanorods are stable in buffer solutions free of surfactant. Nanorod bioconjugation was accomplished with a
Hongwei Liao, Jason H. Hafner
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Patterning of polyoxometalate rings on gold nanorods
Chemical Communications, 2020Polyoxometalates (POMs) were self-assembled on cetyltriethylammonium bromide-covered gold nanorods and formed periodic POM rings, which could be used as templates for the synthesis of Ag nano-rings.
Chenggong Yang +3 more
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Spherical gold nanoparticles and gold nanorods for the determination of gentamicin
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2017Gentamicin is an antibiotic indicated to treat mastitis in dairy cattle and for the treatment of bacterial resistance in the context of hospital infections. The effect caused by gentamicin on the optical properties of gold nanoparticles aqueous dispersions were used to develop quantitative methods to determine this antibiotic.
Miranda-Andrades JR +5 more
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Watching Single Gold Nanorods Grow
Small, 2012The consecutive evolution process of single gold nanorods is monitored using atomic force microscopy (AFM). The single-crystal gold nanorods investigated are grown directly on surfaces to which gold seed particles are covalently linked. The growth kinetics for single nanorods is derived from the 3D information recorded by AFM. A better understanding of
Zhongqing, Wei +7 more
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pH-Triggered Assembly of Gold Nanorods
Langmuir, 2005The self-assembly of surfactant-protected gold nanorods (aspect ratio 3.3 +/- 0.3, 20.6 +/- 5.5 nm width, and 67.5 +/- 9.0 nm length) into ordered structures using adipic acid is presented. As made, the gold nanorods are coated with cationic surfactant, which gives them a net positive charge in aqueous solution. The pH-dependent assembly is directed by
Christopher J, Orendorff +2 more
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Multiplex Biosensor Using Gold Nanorods
Analytical Chemistry, 2006Gold nanorods (GNRs) with different aspect ratios were fabricated through seed-mediated growth and surface activation by alkanethiols for the attachment of antibodies to yield gold nanorod molecular probes (GNrMPs). Multiplex sensing was demonstrated by the distinct response of the plasmon spectra of the GNrMPs to binding events of three targets (goat ...
Chenxu, Yu, Joseph, Irudayaraj
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