Plasmon–Exciton Strong Coupling in Colloidal Au Nanocubes with Layered Molecular J-Aggregates DOI
Y. T. Lee, Hyewon Choi, Seong‐Eun Kim

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 7, 2024

Strong coupling between light and matter forms hybrid states, such as exciton-polaritons, which are crucial for advancements in quantum science technology. Plasmonic metal nanoparticles, with their ultrasmall mode volumes, effective generating these but the strength is often limited by surface saturation of excitonic materials. Additionally, cubic can generate strong local fields, have not been systematically explored. This study investigates Au nanocubes (AuNCs) coupled J-aggregates, observing spectral splitting both extinction scattering spectra. Our findings suggest that smaller AuNCs, higher-quality resonances reduced achieve stronger coupling. Furthermore, a layer-by-layer (LBL) coating J-aggregates on AuNCs results ∼21% increase strength. Simulations reveal mechanism behind enhanced confirm layering method effectively increases coupling, surpassing limitations finite area nanoparticles.

Language: Английский

Rapid and Differential Diagnosis of Sepsis Stages Using an Advanced 3D Plasmonic Bimetallic Alloy Nanoarchitecture‐Based SERS Biosensor Combined with Machine Learning for Multiple Analyte Identification DOI Creative Commons
Woo Hyun Kim, Sungwoo Lee, Myeong Jin Jeon

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Abstract Rapid and accurate differential diagnosis of infections, sepsis, septic shock is essential for preventing unnecessary antibiotic overuse improving the chance patient survival. To address this, a 3D gold nanogranule decorated gold‐silver alloy nanopillar (AuNG@Au‐AgNP) based surface‐enhanced Raman scattering (SERS) biosensor developed, capable quantitatively profiling immune‐related soluble proteins (interleukin three receptor, alpha chain: CD123, programmed cell death ligand 1: PD‐L1, human leukocyte antigen–DR isotype: HLA‐DR, chitotriosidase: ChiT) in serum samples. The bimetallic nanoarchitecture, fabricated using anodized aluminum oxide (AAO), features uniform structure with densely packed nanogaps on heads Au‐Ag nanopillars, enabling fast, simple, replicable production. proposed achieves results even low detection limits (4–6 fM) high signal consistency (relative standard deviation (RSD) = 1.79%) within one‐step multi‐analytes identification chip directly loadable chamber. enhance diagnostic performance, support vector machine (SVM) learning algorithm utilized, achieving 95.0% accuracy 95.8% precision classifying healthy controls, infections without shock. This advanced plasmonic nanoarchitecture‐based SERS demonstrates clinical usefulness sepsis severity assessment, providing timely personalized treatment.

Language: Английский

Citations

1
Nanofabrication for Nanophotonics DOI
Younghwan Yang,

Youngsun Jeon,

Zhaogang Dong

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Nanofabrication, a pivotal technology at the intersection of nanoscale engineering and high-resolution patterning, has substantially advanced over recent decades. This enables creation nanopatterns on substrates crucial for developing nanophotonic devices other applications in diverse fields including electronics biosciences. Here, this mega-review comprehensively explores various facets nanofabrication focusing its application nanophotonics. It delves into techniques like focused ion beam electron lithography, methods 3D complex structure fabrication, scalable manufacturing approaches, material compatibility considerations. Special attention is given to emerging trends such as utilization two-photon lithography structures materials phase change substances 2D with excitonic properties. By highlighting these advancements, review aims provide insights ongoing evolution nanofabrication, encouraging further research creating functional nanostructures. work encapsulates critical developments future perspectives, offering detailed narrative state-of-the-art tailored both new researchers seasoned experts field.

Language: Английский

Citations

1
Dual SERS enhancement based on Ag@Au Nanopizza combined with superhydrophobic silicon substrate for the detection of early bladder cancer marker-APOA1 DOI
Hangzhuo Li, Jian Zhu,

Guojun Weng

et al.

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: unknown, P. 137013 - 137013

Published: Nov. 1, 2024

Language: Английский

Citations

4
Iron ore pellets based-Ag2O nanoparticles as efficient Bi-functional heterogeneous catalyst for the synthesis tetrahydrobenzo[α]xanthens in green media DOI Creative Commons

Ehsan Faryabi,

Enayatollah Sheikhhosseini, Mahdieh Yahyazadehfar

et al.

Frontiers in Chemistry, Journal Year: 2025, Volume and Issue: 13

Published: March 19, 2025

Through the use of a microwave, iron ore pellets (IOP)-based Ag 2 O nanoparticles were successfully synthesized. They then characterized by means vibrating sample magnetometer (VSM), Brunauer-Emmett-Teller (BET) surface area analysis, energy-dispersive X-ray (EDX) powder diffraction (XRD) EDX elemental mapping, and field emission scanning electron microscopy (FESEM). High quantities tetrahydrobenzo[a]xanthen derivatives obtained in brief amount time newly prepared nanocomposite, known as NP@IOP, one-pot, three-component reaction involving different aryl aldehydes, naphthol, dimedone. There is no appreciable loss catalytic activity when catalyst recycled utilized several times, it can be easily retrieved using an external magnet. The reason for functionality designed hybrid related to textural properties such desirable specific significant porosity well structural nature NP@IOP catalyst.

Language: Английский

Citations

0
Scalable Purification of Gold Nanocubes via Centrifugal Depletion-Induced Flocculation: A Pathway to High-Precision Nanomaterials DOI
Jiho Kim, Y. T. Lee, Hyewon Choi

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 21, 2025

Language: Английский

Citations

0
Synthesis of Homogeneous Plasmonic Nanostructures for Generating Uniform and Reproducible Photonic Environments DOI
Yeo Hyung Kim,

Young Sook Kwak,

Ji-Hyeon Choi

et al.

Accounts of Materials Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

Language: Английский

Citations

0
Plasmon–Exciton Strong Coupling in Colloidal Au Nanocubes with Layered Molecular J-Aggregates DOI
Y. T. Lee, Hyewon Choi, Seong‐Eun Kim

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 7, 2024

Strong coupling between light and matter forms hybrid states, such as exciton-polaritons, which are crucial for advancements in quantum science technology. Plasmonic metal nanoparticles, with their ultrasmall mode volumes, effective generating these but the strength is often limited by surface saturation of excitonic materials. Additionally, cubic can generate strong local fields, have not been systematically explored. This study investigates Au nanocubes (AuNCs) coupled J-aggregates, observing spectral splitting both extinction scattering spectra. Our findings suggest that smaller AuNCs, higher-quality resonances reduced achieve stronger coupling. Furthermore, a layer-by-layer (LBL) coating J-aggregates on AuNCs results ∼21% increase strength. Simulations reveal mechanism behind enhanced confirm layering method effectively increases coupling, surpassing limitations finite area nanoparticles.

Language: Английский

Citations

2