Improving the stability of plasmonic magnesium nanoparticles in aqueous media

Asselin, Jérémie; Hopper, Elizabeth R.; Ringe, Emilie

doi:10.1039/d1nr06139a

Cited by 13 publications

(16 citation statements)

References 50 publications

(79 reference statements)

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“…† A thin oxide layer is also visible on the entirety of the surface of the Mg NPs, as described in detail previously. 30,31,55 The increase in Pd decoration and the corresponding decrease in Mg metal content was also accompanied by a gradual decrease in optical absorbance by the Mg NPs (Fig. S3 †), as expected from the loss of Mg metal.…”

Section: Mg and Pd-mg Nanoparticles Synthesis And Characterizationmentioning

confidence: 53%

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Plasmonic magnesium nanoparticles decorated with palladium catalyze thermal and light-driven hydrogenation of acetylene

et al. 2023

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Section: Mg and Pd-mg Nanoparticles Synthesis And Characterizationmentioning

confidence: 53%

“…A thin oxide layer is also visible on the entirety of the surface of the Mg NPs, as described in detail previously. 30,31,55…”

Section: Resultsmentioning

confidence: 99%

Plasmonic magnesium nanoparticles decorated with palladium catalyze thermal and light-driven hydrogenation of acetylene

et al. 2023

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“…Shells of a stable compound such as silica, alumina, and iron oxide or of molecules such as polymers and long-chain hydrocarbons are common in nanotechnology. 129 These have been applied to non-noble metals to enhance their stability, for example, silica on Cu, 130 polydopamine on Al, 131 silica on In, 132 , 133 and both silica and polydopamine on Mg. 134 They form a barrier preventing chemical reactions between the core and the surrounding environment. They also enable almost arbitrary functionalization by providing a chemical anchoring mechanism for ligands or shell-like structures capable of adding extrinsic properties such as luminescence, ferromagnetism, light-induced drug delivery, or specific cell labeling.…”

Section: Discussionmentioning

confidence: 99%

“…Shells of a stable compound such as silica, alumina, and iron oxide or of molecules such as polymers and long-chain hydrocarbons are common in nanotechnology . These have been applied to non-noble metals to enhance their stability, for example, silica on Cu, polydopamine on Al, silica on In, , and both silica and polydopamine on Mg . They form a barrier preventing chemical reactions between the core and the surrounding environment.…”

Section: Discussionmentioning

confidence: 99%

Opportunities and Challenges for Alternative Nanoplasmonic Metals: Magnesium and Beyond

et al. 2022

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Materials that sustain localized surface plasmon resonances have a broad technology potential as attractive platforms for surface-enhanced spectroscopies, chemical and biological sensing, light-driven catalysis, hyperthermal cancer therapy, waveguides, and so on. Most plasmonic nanoparticles studied to date are composed of either Ag or Au, for which a vast array of synthetic approaches are available, leading to controllable size and shape. However, recently, alternative materials capable of generating plasmonically enhanced light–matter interactions have gained prominence, notably Cu, Al, In, and Mg. In this Perspective, we give an overview of the attributes of plasmonic nanostructures that lead to their potential use and how their performance is dictated by the choice of plasmonic material, emphasizing the similarities and differences between traditional and emerging plasmonic compositions. First, we discuss the materials limitation encapsulated by the dielectric function. Then, we evaluate how size and shape maneuver localized surface plasmon resonance (LSPR) energy and field distribution and address how this impacts applications. Next, biocompatibility, reactivity, and cost, all key differences underlying the potential of non-noble metals, are highlighted. We find that metals beyond Ag and Au are of competitive plasmonic quality. We argue that by thinking outside of the box, i.e., by looking at nonconventional materials such as Mg, one can broaden the frequency range and, more importantly, combine the plasmonic response with other properties essential for the implementation of plasmonic technologies.

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“…The wet-chemical synthesis of Mg colloids is still in its infancy, and much is left to uncover prior to shape and size control . Similar to Al, Mg nanoparticles also form a thin self-protecting oxide layer which keeps them stable in low-oxidative environments such as air (few hours) or alcoholic suspensions (weeks). , This might be improved in the future through surface chemistry and other protective layers …”

Section: Other Crystal Lattices and Compositionsmentioning

confidence: 99%

Plate-Like Colloidal Metal Nanoparticles

et al. 2023

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The pseudo-two-dimensional (2D) morphology of plate-like metal nanoparticles makes them one of the most anisotropic, mechanistically understood, and tunable structures available. Although well-known for their superior plasmonic properties, recent progress in the 2D growth of various other materials has led to an increasingly diverse family of plate-like metal nanoparticles, giving rise to numerous appealing properties and applications. In this review, we summarize recent progress on the solution-phase growth of colloidal plate-like metal nanoparticles, including plasmonic and other metals, with an emphasis on mechanistic insights for different synthetic strategies, the crystallographic habits of different metals, and the use of nanoplates as scaffolds for the synthesis of other derivative structures. We additionally highlight representative self-assembly techniques and provide a brief overview on the attractive properties and unique versatility benefiting from the 2D morphology. Finally, we share our opinions on the existing challenges and future perspectives for plate-like metal nanomaterials.

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Improving the stability of plasmonic magnesium nanoparticles in aqueous media

Abstract: This work describes two different core-shell architectures based on Mg nanoparticles (NPs) synthesised in order to improve Mg’s stability in aqueous solutions. The shell thickness in Mg-polydopamine NPs can be...

Cited by 13 publications

References 50 publications

Plasmonic magnesium nanoparticles decorated with palladium catalyze thermal and light-driven hydrogenation of acetylene

Plasmonic magnesium nanoparticles decorated with palladium catalyze thermal and light-driven hydrogenation of acetylene

Opportunities and Challenges for Alternative Nanoplasmonic Metals: Magnesium and Beyond

Plate-Like Colloidal Metal Nanoparticles

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