scholarly journals Recent Advances in Hollow Gold Nanostructures for Biomedical Applications

2021 ◽  
Vol 9 ◽  
Author(s):  
Jeong-Min Park ◽  
Hye Eun Choi ◽  
Dauletkerey Kudaibergen ◽  
Jae-Hyuk Kim ◽  
Ki Su Kim
Keyword(s):  
Drug Delivery ◽  
Surface Plasmon ◽  
Metallic Nanoparticles ◽  
Biomedical Applications ◽  
Near Infrared ◽  
Synthetic Methods ◽  
Gold Nanostructures ◽  
Infrared Light ◽  
Localized Surface Plasmon ◽  
Recent Advances

The localized surface plasmon resonance of metallic nanoparticles has attracted much attention owing to its unique characteristics, including the enhancement of signals in sensors and photothermal effects. In particular, hollow gold nanostructures are highly promising for practical applications, with significant advantages being found in their material properties and structures: 1) the interaction between the outer surface plasmon mode and inner cavity mode leads to a greater resonance, allowing it to absorb near-infrared light, which can readily penetrate tissue; 2) it has anti-corrosiveness and good biocompatibility, which makes it suitable for biomedical applications; 3) it shows a reduced net density and large surface area, allowing the possibility of nanocarriers for drug delivery. In this review, we present information on the classification, characteristics, and synthetic methods of hollow gold nanostructures; discuss the recent advances in hollow gold nanostructures in biomedical applications, including biosensing, bioimaging, photothermal therapy, and drug delivery; and report on the existing challenges and prospects for hollow gold nanostructures.

scholarly journals Recent Advances in the Design and Photocatalytic Enhanced Performance of Gold Plasmonic Nanostructures Decorated with Non-Titania Based Semiconductor Hetero-Nanoarchitectures

Catalysts ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1459
Author(s):  
Jose I. Garcia-Peiro ◽  
Javier Bonet-Aleta ◽  
Carlos J. Bueno-Alejo ◽  
Jose L. Hueso
Keyword(s):  
Metallic Nanoparticles ◽  
Near Infrared ◽  
Environmental Chemistry ◽  
Gold Nanostructures ◽  
Plasmonic Nanostructures ◽  
Strong Impact ◽  
Metal Chalcogenides ◽  
Research Fields ◽  
Recent Advances ◽  
Crystallographic Facets

Plasmonic photocatalysts combining metallic nanoparticles and semiconductors have been aimed as versatile alternatives to drive light-assisted catalytic chemical reactions beyond the ultraviolet (UV) regions, and overcome one of the major drawbacks of the most exploited photocatalysts (TiO2 or ZnO). The strong size and morphology dependence of metallic nanostructures to tune their visible to near-infrared (vis-NIR) light harvesting capabilities has been combined with the design of a wide variety of architectures for the semiconductor supports to promote the selective activity of specific crystallographic facets. The search for efficient heterojunctions has been subjected to numerous studies, especially those involving gold nanostructures and titania semiconductors. In the present review, we paid special attention to the most recent advances in the design of gold-semiconductor hetero-nanostructures including emerging metal oxides such as cerium oxide or copper oxide (CeO2 or Cu2O) or metal chalcogenides such as copper sulfide or cadmium sulfides (CuS or CdS). These alternative hybrid materials were thoroughly built in past years to target research fields of strong impact, such as solar energy conversion, water splitting, environmental chemistry, or nanomedicine. Herein, we evaluate the influence of tuning the morphologies of the plasmonic gold nanostructures or the semiconductor interacting structures, and how these variations in geometry, either individual or combined, have a significant influence on the final photocatalytic performance.

scholarly journals Near-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distance

AIP Advances ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 035153 ◽  
Author(s):  
Satoshi Kaneko ◽  
Shuhei Watanabe ◽  
Shinya Kasai ◽  
Tomoaki Nishino ◽  
Kazuhito Tsukagoshi ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Rhodamine B ◽  
Near Infrared ◽  
Separation Distance ◽  
Infrared Light ◽  
Localized Surface Plasmon ◽  
Near Infrared Light ◽  
Induced Decomposition

Surface-bioengineered Gold Nanoparticles for Biomedical Applications

2018 ◽  
Vol 25 (16) ◽  
pp. 1920-1944 ◽  
Author(s):  
Zhicong Miao ◽  
Zilin Gao ◽  
Ruoxia Chen ◽  
Xiaoqing Yu ◽  
Zhiqiang Su ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Gold Nanoparticles ◽  
Surface Functionalization ◽  
Metallic Nanoparticles ◽  
Biomedical Applications ◽  
Structure Functions ◽  
Functionalized Nanoparticles ◽  
Recent Advances

The conjugation of gold nanoparticles (AuNPs) with biomolecules could create many outstanding biofunctions for the surface-functionalized nanoparticles and extend their biomedical applications. In this review, we summarize the recent advances in the surface bioengineering of AuNPs with biomolecules, such as DNA, proteins, peptides, and biopolymers, in which the details on the structure, functions, and properties of surface- bioengineered AuNPs are discussed. In addition, the surface-biofunctionalization of AuNPs for biomedical applications like biosensing, bioimaging, drug delivery, and tissue engineering are introduced. It is expected that this work will be very helpful for readers to understand the surface functionalization and engineering techniques for various metallic nanoparticles and design novel biomaterials for biomedical applications.

scholarly journals Stimuli-responsive nanobubbles for biomedical applications

2021 ◽  
Author(s):  
Ranhua Xiong ◽  
Ronald X. Xu ◽  
Chaobo Huang ◽  
Stefaan De Smedt ◽  
Kevin Braeckmans
Keyword(s):  
Drug Delivery ◽  
Biomedical Applications ◽  
Stimuli Responsive ◽  
Recent Advances ◽  
Tumor Tissues ◽  
Bio Imaging

This review presents an overview of the recent advances in the development of stimuli-responsive nanobubbles and their novel biomedical applications including bio-imaging, drug delivery and ablation of tumor tissues.

Recent advances in the design of inorganic and nano-clay particles for the treatment of brain disorders

2021 ◽  
Author(s):  
Francesca Persano ◽  
Svetlana Batasheva ◽  
Gölnur Fakhrullina ◽  
Giuseppe Gigli ◽  
Stefano Leporatti ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Silica Nanoparticles ◽  
Biomedical Applications ◽  
Inorganic Materials ◽  
Brain Disorders ◽  
Clay Particles ◽  
Recent Advances ◽  
Wide Range ◽  
Nano Clay

Inorganic materials, in particular nanoclays and silica nanoparticles, have attracted enormous attention due to their versatile and tuneable properties, making them ideal candidates for a wide range of biomedical applications, such as drug delivery.

scholarly journals Near-infrared optical absorption enhanced in black silicon via Ag nanoparticle-induced localized surface plasmon

2014 ◽  
Vol 9 (1) ◽  
pp. 519 ◽  
Author(s):  
Peng Zhang ◽  
Shibin Li ◽  
Chunhua Liu ◽  
Xiongbang Wei ◽  
Zhiming Wu ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Surface Plasmon ◽  
Near Infrared ◽  
Localized Surface Plasmon ◽  
Black Silicon ◽  
Ag Nanoparticle
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