Plasmon—resonant gold nanoparticles for cancer optical imaging

Wang, Zhen

doi:10.1007/s11433-013-5006-8

Cited by 19 publications

(11 citation statements)

References 107 publications

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“…The NIR SPR L ex-tinction is consistent with the human tissue facilitating photothermal therapy and solar energy harvesting [16][17][18][19]. For in-vivo therapy in cancer research, small diameter AuNRs are more ideal metal nanostructures for cancer diagnosis and therapy for their tunable SPR L and optimal penetration through biological skin and tissue in the NIR region [20][21][22][23][24][25]. And the photothermal conversion efficiency is an essential parameter in the therapy [26,27].…”

Section: Introductionmentioning

confidence: 87%

Gold Nanorods: Near-Infrared Plasmonic Photothermal Conversion and Surface Coating

Cong¹,

Kan²,

Wang³

et al. 2014

MSCE

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In this paper, AuNRs colloids with SPR L located at ~810 nm and ~1100 nm were synthesized using an improved seed method. Based on the NIR lasers available, photothermal conversion of AuNRs were systematically studied compared with that of water. Under low power irradiation, the highest temperature is obtained when the SPR L wavelength of AuNRs is equal to the laser wavelength, and temperature of colloid increases from ~20˚C to ~65˚C. With increasing laser power (such as 6 W), the AuNRs colloid boils within a few minutes, and nanorods undergo a shape deformation from rod to spherical particle and even fusion, and the SPR L disappears. For further investigation, the obtained AuNRs were coated with SiO 2 shell to form a core-shell nanostructure (Au@SiO 2). The surface coating can be used not only in keeping the stability of AuNRs for further treatment, but also in increasing plasmonic property and biocompatibility. This work will be useful for designing plasmonic photothermal properties and further applications in nanomedicine.

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Section: Introductionmentioning

confidence: 87%

Gold Nanorods: Near-Infrared Plasmonic Photothermal Conversion and Surface Coating

Cong¹,

Kan²,

Wang³

et al. 2014

MSCE

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“…The heat generated may act in synergy with the release of a chemotherapeutic drug from a heat-sensitive hydrogel formulation. The optical properties of the gold nanoparticles have been extensively explored and enabled their application as photosensitizers or as adjuvants in photothermic therapy, and as contrast and imaging agents [ 70 , 71 ].…”

Section: Introductionmentioning

confidence: 99%

An Overview of the Synthesis of Gold Nanoparticles Using Radiation Technologies

et al. 2018

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At a nano-level, optical properties of gold are unique and gave birth to an emerging platform of nanogold-based systems for diverse applications, because gold nanoparticle properties are tunable as a function of size and shape. Within the available techniques for the synthesis of gold nanoparticles, the radiolytic synthesis allows proper control of the nucleation process without the need for reducing agents, in a single step, combined or not with simultaneous sterilization. This review details and summarizes the use of radiation technologies for the synthesis and preparation of gold nanoparticles concerning fundamental aspects, mechanism, current pathways for synthesis and radiation sources, as well as briefly outlines final applications and some toxicity aspects related to nanogold-based systems.

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“…PPs, mainly gold NPs, exhibit tunable optical properties including Mie scattering, surface plasmonic resonance (SPR), surface-enhanced luminescence and surface Raman scattering. They are used for high-sensitivity and high-resolution optical imaging [ 107 , 108 , 109 ]. Their surface plasmon resonance which corresponds to the interaction with the light of the free conductive electrons on their surface, is the major feature.…”

Section: Optical Imaging Probesmentioning

confidence: 99%

Design and Synthesis of Luminescent Lanthanide-Based Bimodal Nanoprobes for Dual Magnetic Resonance (MR) and Optical Imaging

2021

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Current biomedical imaging techniques are crucial for the diagnosis of various diseases. Each imaging technique uses specific probes that, although each one has its own merits, do not encompass all the functionalities required for comprehensive imaging (sensitivity, non-invasiveness, etc.). Bimodal imaging methods are therefore rapidly becoming an important topic in advanced healthcare. This bimodality can be achieved by successive image acquisitions involving different and independent probes, one for each mode, with the risk of artifacts. It can be also achieved simultaneously by using a single probe combining a complete set of physical and chemical characteristics, in order to record complementary views of the same biological object at the same time. In this scenario, and focusing on bimodal magnetic resonance imaging (MRI) and optical imaging (OI), probes can be engineered by the attachment, more or less covalently, of a contrast agent (CA) to an organic or inorganic dye, or by designing single objects containing both the optical emitter and MRI-active dipole. If in the first type of system, there is frequent concern that at some point the dye may dissociate from the magnetic dipole, it may not in the second type. This review aims to present a summary of current activity relating to this kind of dual probes, with a special emphasis on lanthanide-based luminescent nano-objects.

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Plasmon—resonant gold nanoparticles for cancer optical imaging

Cited by 19 publications

References 107 publications

Gold Nanorods: Near-Infrared Plasmonic Photothermal Conversion and Surface Coating

Gold Nanorods: Near-Infrared Plasmonic Photothermal Conversion and Surface Coating

An Overview of the Synthesis of Gold Nanoparticles Using Radiation Technologies

Design and Synthesis of Luminescent Lanthanide-Based Bimodal Nanoprobes for Dual Magnetic Resonance (MR) and Optical Imaging

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