Silver amplified immunosensor via effective fluorogenic Ag+-imidazole aggregation for detection of AFB1 DOI

Xufang Huang,

Xiaorui Xing,

Pixian Zhang

et al.

Analytica Chimica Acta, Journal Year: 2024, Volume and Issue: 1330, P. 343297 - 343297

Published: Oct. 2, 2024

Language: Английский

Multifunctional Ultra‐Bright Plasmonic Gold@Fluorescence Nanoprobe for Biomedical Applications DOI Creative Commons

Caiping Ding,

Wenjing Li, Xiaolin Huang

et al.

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

Published: Feb. 6, 2025

ABSTRACT Metal‐enhanced fluorescence (MEF) represents a captivating phenomenon that transpires when fluorophores are situated in close vicinity to the surface of metallic nanostructures, leading nuanced augmentation their fluorescent characteristics. Given its efficacy enhancing excitation rates, quantum yield, and photostability, MEF has firmly established itself as highly valuable tool for augmenting biosensor sensitivity, bioimaging clarity, intensifying therapeutic responses. Notably, plasmonic gold inherently advantageous MEF, have been widely utilized signal amplification, labeling, theranostics. In this endeavor, we undertake comprehensive examination MEF‐enabled meticulously analyzing fundamental enhancement mechanisms, crucial influencing factors, diverse modes enhancement. Furthermore, spotlight exemplary applications these nanostructures biosensing, bioimaging, theranostics, underscoring revolutionary potential. Ultimately, offer glimpse into future prospects improvement challenges beset gold‐based MEF. Our attention is steadfastly directed toward essential scientific questions technical hurdles remain be surmounted, inviting readers partake an exciting exploration dynamic promising field.

Language: Английский

Citations

1

Electron Transfer-Driven Nanozymes Boost Biosensor Sensitivity via a Synergistic Signal Amplification Strategy DOI

Zongyou Chen,

Keyang Lai,

Aoxue Wang

et al.

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

Published: March 3, 2025

The conventional gold nanoparticles (AuNPs) with insufficient brightness face substantial challenges in developing a sensitive lateral flow immunoassay (LFIA). Herein, multibranched manganese–gold (Mn–Au) (MnAuNPs) Au core–Mn shell nanostructure were synthesized by one-pot method. Mn of valence-rich and core high electron transfer efficiency endowed MnAuNPs oxidase-like activity, which oxidized 3,3′,5,5′-tetramethylbenzidine (TMB) only transfer. Ox-TMB, was the oxidation product TMB, is an excellent photothermal agent. Furthermore, synergistic effect ox-TMB significantly enhanced conversion efficiency. has enabled highly quantitative detection. LFIA based on (cascade LFIA) achieved detection Escherichia coli O157:H7. entire process completed 25 min. limit cascade 239 CFU mL–1, 37.21-fold lower than that AuNPs-LFIA (8892 mL–1). recoveries 82.63–111.67%, coefficients variation 4.28–14.19%. Overall, this work suggests potential development broadens biosensing strategies for point-of-care testing.

Language: Английский

Citations

1

Bidirectional “Win–Win”: Asymmetrical Nanobowl-Coupled Aggregation-Induced Emissive Nanosilicon-Enhanced Immunochromatographic Strips for the Ultrasensitive Detection of Salmonella typhimurium DOI
Yuechun Li, Wenrui Zhang, Ziqi Wang

et al.

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(45), P. 18204 - 18213

Published: Nov. 1, 2024

The lack of nanoprobes with an efficient signal response and overlook cooperation between can be responsible for the unsatisfactory analytical performance immunochromatographic strips (ITSs). Herein, asymmetrical nanobowl-confined innumerable gold nanoparticles (AuNPs) (AuNPs@AFRNBs) to enhance light absorption are developed quenching fluorescence aggregation-induced emissive (AIE) nanosilicons, which is used construction a bidirectional complementary-enhanced ITS (BC-ITS) ultrasensitively detect

Language: Английский

Citations

4

Triple-readout immunoassay based on copper ion trigger for the detection of Ochratoxin A DOI

Yingli Guo,

Xingping Zhang, Hualin Yang

et al.

Analytica Chimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 343750 - 343750

Published: Jan. 1, 2025

Language: Английский

Citations

0

Ru nanoclusters engineer Prussian blue analog nanocubes for multiple active sites synergistic catalysis enabling high-performance bacterial detection DOI
Kaixuan Ma, Yuanyuan Cao,

Chenyu Xuan

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160553 - 160553

Published: Feb. 1, 2025

Language: Английский

Citations

0

The Anisotropic and Isotropic Gold Nanomaterials Continue to Heat Up: From Properties to Food Safety Monitoring DOI

Rui Shu,

Sijie Liu, Jianlong Wang

et al.

Trends in Food Science & Technology, Journal Year: 2025, Volume and Issue: unknown, P. 104941 - 104941

Published: Feb. 1, 2025

Language: Английский

Citations

0

Recent Advances in Nanomaterials for Enhanced Colorimetric Detection of Viruses and Bacteria DOI Creative Commons
Caroline R. Basso, Mário Tanomaru‐Filho,

Victória D’Amario Gavioli

et al.

Chemosensors, Journal Year: 2025, Volume and Issue: 13(3), P. 112 - 112

Published: March 19, 2025

The increasing prevalence of pathogen outbreaks underscores the urgent need for rapid, accurate, and cost-effective diagnostic tools. Colorimetric detection has gained significant attention among available techniques due to its simplicity, portability, potential point-of-care applications. nanomaterial-based colorimetric field continues evolve, with innovations focusing on improving sensitivity, specificity, robustness, cost-effectiveness, friendly analysis. Additionally, efforts address limitations, such as stability environmental impact, pave way more sustainable reliable solutions. This review highlights recent advances in nanomaterials last five years.

Language: Английский

Citations

0

Silver amplified immunosensor via effective fluorogenic Ag+-imidazole aggregation for detection of AFB1 DOI

Xufang Huang,

Xiaorui Xing,

Pixian Zhang

et al.

Analytica Chimica Acta, Journal Year: 2024, Volume and Issue: 1330, P. 343297 - 343297

Published: Oct. 2, 2024

Language: Английский

Citations

0