Microchimica Acta, Journal Year: 2024, Volume and Issue: 192(1)
Published: Dec. 16, 2024
Language: Английский
Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: March 18, 2025
Lateral flow immunoassays (LFIA) are widely recognized as cost-effective point-of-care diagnostic tools (POCT) for infectious disease diagnosis. Despite their widespread use, traditional colorimetric LFIAs, which rely on gold nanospheres (GNP), constrained by a limited sensitivity. To overcome this challenge, we have engineered nanocages (GNCs) with optimized core-to-shell morphologies, achieving significant amplification of both and photothermal LFIA readout signals. The distinctive morphology GNCs, featuring adjustable gap thicknesses, enables fine-tuning the localized surface plasmon resonance (LSPR) peak across broad spectral range from 600 to 1200 nm. Among GNC morphologies evaluated, (GNC-4), characterized its larger size maximal thickness, exhibited superior color brightness enhanced efficiency compared other GNP. performance GNC-4 enabled detection influenza A (H1N1), used model analyte, limit (LOD) 1.8 ng/mL via analysis 1.51 pg/mL using LFIA. Compared GNP-based detection, sensitivity GNC-4-based was 7-fold, while showed an improvement over 8000-fold. By incorporating portable smartphone-based platform, our dual-modal exhibits high sensitivity, practicality in detecting H1N1 spiked saliva samples, long-term stability five months, making it promising tool potential diagnosing pathogens.
Language: Английский
Citations
1
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
5
Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 110967 - 110967
Published: Feb. 1, 2025
Language: Английский
Citations
0
Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 533, P. 216538 - 216538
Published: Feb. 21, 2025
Language: Английский
Citations
0
Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: March 11, 2025
Salmonella enterica serovar typhimurium (S. typhimurium), a prevalent foodborne bacterium, necessitates creating sensitive and rapid detection methods for food safety, with lateral flow immunoassays (LFIAs) using nanomaterials as signal tracers being particularly effective. Enhancements in performance sensitivity are not restricted to the material alone, we propose an "integrated stacked" concept, which combines amorphous active sites, hollow morphology enhanced reflection, symmetric structure strong absorption resonance. This approach leads significant photothermal enhancement (η = 60.66%) is supported by finite element analysis (|E|max2 3100). A "nanobullet" (RuTe2) was created, featuring vivid colorimetric enhancing range, large specific surface area (≈6:1) improved antibody binding, excellent properties facilitating dual-mode transduction. After 5 min of limits RuTe2-LFIA S. after 12 were 2398.83 cfu mL–1 (colorimetric) 977.23 (photothermal), 36.14 88.72 times lower than values AuNPs-LFIA (86696.19 mL–1). The superior suggests potential advancements materials point-of-care testing.
Language: Английский
Citations
0
Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137604 - 137604
Published: March 1, 2025
Language: Английский
Citations
0
Food Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 144058 - 144058
Published: March 1, 2025
Language: Английский
Citations
0
Discover Nano, Journal Year: 2025, Volume and Issue: 20(1)
Published: April 2, 2025
This paper provides a comprehensive overview of the diverse applications and innovations nanoparticles in detection Salmonella. It encompasses range novel methods, including efficient enrichment, nucleic acid extraction, immunoassays, tests, biosensors, emerging strategies with potential for future applications. The surface modification specific antibodies or ligands enables to achieve highly selective capture Salmonella, while optimizing extraction process improving efficiency. employment immunological tests markedly enhances specificity sensitivity reaction, thereby determination results. Moreover, distinctive physicochemical properties enhance sensitivity, selectivity, stability facilitating rapid advancement bio-detection technologies. is particularly noteworthy that there has been significant application innovative research nanozymes molecular assays. progress not only resulted enhanced efficiency but also facilitated innovation improvement As nanotechnologies continue advance, use metal oxide Salmonella likely become more promising reliable strategy ensuring food safety public health.
Language: Английский
Citations
0
Biosensors and Bioelectronics, Journal Year: 2025, Volume and Issue: 283, P. 117558 - 117558
Published: May 5, 2025
Language: Английский
Citations
0
Talanta, Journal Year: 2024, Volume and Issue: 281, P. 126891 - 126891
Published: Sept. 14, 2024
Language: Английский
Citations
3