Results 71 to 80 of about 910,555 (326)

Plasmonic Enhancement of Two-Photon Excited Luminescence of Gold Nanoclusters

Molecules, 2022
Plasmonic-enhanced luminescence of single molecules enables imaging and detection of low quantities of fluorophores, down to individual molecules. In this work, we present two-photon excited luminescence of single gold nanoclusters, Au18(SG)14, in close ...
Anna Pniakowska, Joanna Olesiak-Banska
doaj   +1 more source

Optically Responsive Gold Nanorod−Polypeptide Assemblies [PDF]

Langmuir, 2008
Environmentally responsive nanoassemblies based on polypeptides and nanoparticles can have a number of promising biological/biomedical applications. We report the generation of gold nanorod (GNR)-elastin-like polypeptide (ELP) nanoassemblies whose optical response can be manipulated based on exposure to near-infrared (NIR) light.
Huang-Chiao, Huang, Piyush, Koria, Sarah M, Parker, Luke, Selby, Zaki, Megeed, Kaushal, Rege   +5 more
openaire   +2 more sources

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source

Fabrication of Anti-human Cardiac Troponin I Immunogold Nanorods for Sensing Acute Myocardial Damage

Nanoscale Research Letters, 2009
A facile, rapid, solution-phase method of detecting human cardiac troponin I for sensing myocardial damage has been described using gold nanorods-based biosensors.
Fan X, Gu N, Guo ZR, Gu CR, Bian ZP, Wu HF, Yang D, Zhang JN   +7 more
doaj   +1 more source

Plasmon modes in single gold nanodiscs [PDF]

, 2014
Optical properties of single gold nanodiscs were studied by scanning near-field optical microscopy. Near-field transmission spectra of a single nanodisc exhibited multiple plasmon resonances in the visible to near-infrared region. Near-field transmission
Hourahine, Benjamin, Imura, Kohei, McArthur, Duncan, Misawa, Hiroaki, Okamoto, Hiromi, Papoff, Francesco, Ueno, Kosei   +6 more
core   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

A Novel Fast Photothermal Therapy Using Hot Spots of Gold Nanorods for Malignant Melanoma Cells

Nanomaterials, 2018
In this paper, the plasmon resonance effects of gold nanorods was used to achieve rapid photothermal therapy for malignant melanoma cells (A375 cells). After incubation with A375 cells for 24 h, gold nanorods were taken up by the cells and gold nanorod ...
Yanhua Yao, Nannan Zhang, Xiao Liu, Qiaofeng Dai, Haiying Liu, Zhongchao Wei, Shaolong Tie, Yinyin Li, Haihua Fan, Sheng Lan   +9 more
doaj   +1 more source

Chiral Assembly of Gold-Silver Core-Shell Plasmonic Nanorods on DNA Origami with Strong Optical Activity.

ACS Nano, 2020
The spatial organization of metal nanoparticles has become an important tool for manipulating light in nanophotonic applications. Silver nanoparticles, particularly silver nanorods have excellent plasmonic properties, but are prone to oxidation and are ...
Linh-Dang Nguyen, Mihir Dass, Martin Ober, L. Besteiro, Zhiming M. Wang, B. Nickel, A. Govorov, T. Liedl, Amelie Heuer-Jungemann   +8 more
semanticscholar   +1 more source

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

Advanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu, Changhui Sun, Luyao Wang, Yuhang Cheng, Yi Xin, Xuyun Guo, Hui Li, Valeria Nicolosi, Yuhai Dou, Peng Li, Tianyi Ma, Jie Wang   +11 more
wiley   +1 more source

Optically-enhanced performance of polymer solar cells with low concentration of gold nanorods in the anodic buffer layer [PDF]

, 2012
In this work, the effect of gold nanorods on the performance of poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric-acid-methyl-ester bulk heterojunction solar cells was investigated.
Izquierdo, Ricardo, Ma, Dongling, Mahmoud, Alaa Y., Truong, Vo-Van, Zhang, Jianming   +4 more
core   +2 more sources