Nanomaterials-driven paper-based biosensors for food contaminants detection: Classification, mechanism and applications

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 532, P. 216512 - 216512

Published: Feb. 18, 2025

Language: Английский

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Advances of nanobody-based immunosensors for detecting food contaminants

Trends in Food Science & Technology, Journal Year: 2025, Volume and Issue: unknown, P. 104871 - 104871

Published: Jan. 1, 2025

Language: Английский

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Nanomaterial-mediated self-calibrating biosensors for ultra-precise detection of food hazards: Recent advances and new horizons

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 522, P. 216204 - 216204

Published: Sept. 10, 2024

Language: Английский

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Nanobodies-based colloidal gold immunochromatographic assay for specific detection of parathion

Analytica Chimica Acta, Journal Year: 2024, Volume and Issue: 1310, P. 342717 - 342717

Published: May 10, 2024

Language: Английский

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“Three-in-One” Plasmonic Au@PtOs Nanocluster Driven Lateral Flow Assay for Multimodal Cancer Exosome Biosensing

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(26), P. 10686 - 10695

Published: June 17, 2024

Exploiting the multiple properties of nanozymes for multimode lateral flow assay (LFA) is urgently required to improve accuracy and versatility. Herein, we developed a novel plasmonic Au nanostar@PtOs nanocluster (Au@PtOs) as signal tag LFA detection. Based on PtOs bimetallic doping strategy, Au@PtOs can indicate both excellent SERS enhancement nanozyme catalytic activity. Meanwhile, displays better photothermal effect than that nanostars. Therefore, colorimetric/SERS/temperature three-mode signals be read out based nanocomposite. The was combined with applied breast cancer exosome detection limit mode 2.6 × 103/4.1 101/4.6 102 exosomes/μL, respectively, which much superior common nanoparticles (∼105 exosomes/μL). Moreover, fingerprint molecular recognition ability mode, phenotypes derived from different cell lines discriminated easily. convenient visual colorimetric sensitive SERS/temperature quantitative modes, driven satisfy requirements accurate flexible multimodal sensing in application scenarios.

Language: Английский

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Fortified Dual-Spectral Overlap with Enhanced Colorimetric/Fluorescence Dual-Response Immunochromatography for On-Site Bimodal-Type Gentamicin Monitoring

Journal of Agricultural and Food Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: April 16, 2024

Immunochromatography (ICA) remains untapped toward enhanced sensitivity and applicability for fulfilling the nuts bolts of on-site food safety surveillance. Herein, we report a fortified dual-spectral overlap with colorimetric/fluorescence dual-response ICA bimodal-type gentamicin (Gen) monitoring by employing polydopamine (PDA)-coated AuNPs (APDA) simultaneously serving as colorimetric reporter fluorescence quencher. Availing response that originated from PDA layer, resultant APDA exhibits less required antibody immunoprobes in single immunoassay, which facilitates improved utilization efficiency immuno-recognition APDA-ICA. Further integrated advantageous features excitation emission Arg/ATT-AuNCs, this APDA-ICA "turn on/off" pattern achieves visual limits detection 1.0 0.5 ng mL–1 patterns (25- 50-fold lower than standard AuNPs-ICA). Moreover, excellent self-calibration satisfactory recovery 79.03–118.04% were shown colorimetric–fluorescence analysis Gen real environmental media (including river water, an urban aquaculture water body, aquatic product, animal byproduct). This work provides feasibility exploiting dual safeguarding public health.

Language: Английский

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Janus plasmonic-aggregation induced emission nanobeads as high-performance colorimetric–fluorescent probe of immunochromatographic assay for the ultrasensitive detection of staphylococcal enterotoxin B in milk

Biosensors and Bioelectronics, Journal Year: 2024, Volume and Issue: 261, P. 116458 - 116458

Published: June 1, 2024

Language: Английский

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Genetically engineered integrated aflatoxin B1 and deoxynivalenol bispecific nanobody as surrogate antigens for constructed time-resolved immunoassay dual detection methods

Biosensors and Bioelectronics, Journal Year: 2025, Volume and Issue: 273, P. 117137 - 117137

Published: Jan. 5, 2025

Language: Английский

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Enhancing Peroxidase‐Like Activity and Photothermal Property of Copper Single‐Atom Nanozyme via A Cascade Competition Strategy

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

Published: Jan. 16, 2025

Abstract Single‐atom nanozymes (SANs) are promising enzyme‐active catalysts due to their maximum atomic utilization. However, it is still a challenge precisely regulate the single‐atom structure, especially in multimetallic MOFs. Based on Cu‐N 4 structure of Zn Cu 1 , cascade competition strategy mediated by buffer (polydopamine) proposed for first time, which induces one‐step nonthermal reaction remove inactive site and adjust coordination environment. Experimental results theoretical calculations show that nanozyme with 2 O (Cu‐N/O) breaks strong steric restriction, exposed active can better adsorb H making have peroxidase‐like activity. Compared traditional bimetallic (Cu ) monometallic (Cu‐MoF) nanozymes, has stronger catalytic activity photothermal properties, as well good photocatalytic extremely stability. It successfully applied Lateral flow immunoassay achieve three‐mode ultrasensitive detection Escherichia coli O157:H7, test strips after subjected broad‐spectrum sterilization treatment.

Language: Английский

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Smartphone-assisted electrochemiluminescence imaging test strips towards dual-signal visualized and sensitive monitoring of aflatoxin B1 in corn samples

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: 36(1), P. 109785 - 109785

Published: March 18, 2024

Language: Английский

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