Recent Plasmonic Gold- and Silver-Assisted Raman Spectra for Advanced SARS-CoV-2 Detection DOI

Nguyễn Hoàng Ly,

Jaebum Choo, Lalitha Gnanasekaran

et al.

ACS Applied Bio Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

COVID-19 has become one of the deadliest epidemics in past years. In efforts to combat deadly disease besides vaccines, drug therapies, and facemasks, significant focus been on designing specific methods for sensitive accurate detection SARS-CoV-2. Of these, surface-enhanced Raman scattering (SERS) is an attractive analytical tool identification SERS phenomenon enhancement intensity signals from molecular analytes anchored onto surfaces roughened plasmonic nanomaterials. This work gives updated summary gold nanomaterials (AuNMs) silver (AgNMs)-based technologies identify Due extreme "hot spots" promoting higher electromagnetic fields their surfaces, different shapes AuNMs AgNMs combined with probes have reviewed enhancing probe molecules quantifying virus. It also reviews progress made recently design certain capable imparting characteristic response/tags SARS-CoV-2 detection.

Language: Английский

Triple gap-induced plasmon coupling in Au nanoplate/nanosphere bilayer with strong and uniform electromagnetic hotspots for sensitive and stable SERS detection DOI

Zi-Xing Zheng,

Zhaoke Zheng,

Wen-Xi Xia

et al.

Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137325 - 137325

Published: Jan. 1, 2025

Language: Английский

Citations

1
Totally defined nanocatalysis: Detection of polyelement nanoparticles by deep learning DOI Creative Commons

Wail Al Zoubi,

Manar Alnaasan,

Bassem Assfour

et al.

InfoMat, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract High‐entropy alloys (HEAs), which are near‐equimolar of four or more metal elements, have long been used to achieve the desired properties catalytic materials. However, a novel alloying approach that includes multiple principal elements at high concentrations generate HEAs as materials has reported. The fabrication well‐defined ultrastable supported HEAs, provide superior performance and stability catalysts owing their augmented entropy lower Gibbs free energy, remains critical challenge. Supported HEA sophisticated because variety morphologies large sizes nanoscale. To address these challenges, PtPdInGaP@TiO 2 , comprising five different metals, is prepared via ultrasonic‐assisted coincident electro‐oxidation–reduction precipitation (U‐SEO‐P). electronic structure nanoparticles (NPs) studied using hard scanning transmission electron microscopy (STEM), first direct observation NPs. This research takes an important step forward in fully describing individual Combining STEM with deep learning convolutional neural network (CNN) selected NPs reveals significant aspects shape size for widespread commercially proposed method facilitates detection segmentation NPs, potential development high‐performance reduction organic compounds. image

Language: Английский

Citations

1
Poly(ionic liquid) Nanocone Arrays as Light-Harvesting Antenna Enables Hot-Electron Mediated Chemistry under Natural Sunlight DOI Creative Commons
Fuwei Sun, Hao Dong, Shiqiang Wang

et al.

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

Published: Jan. 27, 2025

Language: Английский

Citations

0
Nanomaterial‐Enhanced Biosensing: Mechanisms and Emerging Applications DOI
Younghak Cho, Yun-Young Choi,

Yerim Jang

et al.

Advanced Healthcare Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Biosensors serve as indispensable analytical tools in biomedical diagnostics, environmental monitoring, and personalized healthcare, offering operation simplicity, cost-effectiveness, high sensitivity, portability. Nanostructure integration has overcome traditional sensing platform limitations, particularly sensitivity response dynamics. These nanoscale materials-including nanoparticles, nanowires, nanosheets, nanotubes-leverage unique physicochemical properties such surface-to-volume ratio, quantum confinement effects, plasmonic interactions to enhance biosensor performance significantly. This review systematically analyzes recent advances nanostructure-based biosensing technologies, examining how nanomaterial engineering improves sensor selectivity, multifunctionality. Fundamental mechanisms are explored by which nanostructures electrochemical, optical, electrical performance, emphasizing low-abundance biomarkers complex biological matrices. Beyond technological innovations, practical applications evaluated across healthcare monitoring. Finally, current challenges outline future research directions, highlighting these technologies' potential addressed transform diagnostic capabilities outcomes.

Language: Английский

Citations

0
Ligand‐Driven Annular‐Epitaxial Growth of CuS‐Au Heterostructures as Trinity Plasmonic Nanozyme for Multimode Diagnosis of Pathogenic Bacteria DOI Creative Commons

Xiaorui Lin,

Pengyou Zhou,

Miao An

et al.

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

Published: April 24, 2025

Abstract This study presents a novel method to control the site‐selective growth of Au nanostars on CuS nanodisc substrate, it indicates that surfactant ligands play key role in architecture control, only CTAC and homologous series with appropriate affinity can direct annular‐epitaxial nanoparticles CuS, which demonstrates superior peroxidase (POD)‐mimic SERS activity. Mechanistic studies indicate plasmon‐enhanced catalytic activity be attributed spatially separated CuS‐Au heterostructure, supports light‐triggered hot electron‐hole pairs production localized surface plasmon resonance hotspots. For practical biosensing, heterostructures assembled lateral flow assay (LFA) was used for SERS/catalytic colorimetric/photothermal three‐mode detection Streptococcus pneumoniae Klebsiella , visually colorimetric mode at 103 CFU/mL quantitative SERS/photothermal modes 2–10 2 within 15 min, clinical samples were validate assay, result 100% concordant results real‐time PCR. provides unique avenue controllably produce nanozyme, provide multi‐mode signals LFA application meet requirements different scenarios.

Language: Английский

Citations

0
Recent Plasmonic Gold- and Silver-Assisted Raman Spectra for Advanced SARS-CoV-2 Detection DOI

Nguyễn Hoàng Ly,

Jaebum Choo, Lalitha Gnanasekaran

et al.

ACS Applied Bio Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

COVID-19 has become one of the deadliest epidemics in past years. In efforts to combat deadly disease besides vaccines, drug therapies, and facemasks, significant focus been on designing specific methods for sensitive accurate detection SARS-CoV-2. Of these, surface-enhanced Raman scattering (SERS) is an attractive analytical tool identification SERS phenomenon enhancement intensity signals from molecular analytes anchored onto surfaces roughened plasmonic nanomaterials. This work gives updated summary gold nanomaterials (AuNMs) silver (AgNMs)-based technologies identify Due extreme "hot spots" promoting higher electromagnetic fields their surfaces, different shapes AuNMs AgNMs combined with probes have reviewed enhancing probe molecules quantifying virus. It also reviews progress made recently design certain capable imparting characteristic response/tags SARS-CoV-2 detection.

Language: Английский

Citations

0