Rapid and visual detection of benzothiostrobin residue in strawberry using quantum dot-based lateral flow test strip

Wu, Jia-Kai; Ma, Jingwei; Wang, Hong; Qin, Dongmei; Liu, An; Ma, Ying; Zheng, Zhaowen; Hua, Xiude; Wang, Tieliang; Wu, Xiaoxia

doi:10.1016/j.snb.2018.11.137

Cited by 47 publications

(16 citation statements)

References 38 publications

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“…AuNPs are also easy to synthesize by reduction of gold salts. Notably, other signal generating units such as; quantum dots, [ 11 ] graphene oxide, [ 12 , 13 ] and carbon nanotubes [ 14 ] have also been used in LFDs.…”

Section: Introductionmentioning

confidence: 99%

Lateral Flow Glyco‐Assays for the Rapid and Low‐Cost Detection of Lectins–Polymeric Linkers and Particle Engineering Are Essential for Selectivity and Performance

Baker

Muguruza

Richards

et al. 2021

Adv Healthcare Materials

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Lateral flow immuno-assays, such as the home pregnancy test, are rapid point-of-care diagnostics that use antibody-coated nanoparticles to bind antigens/analytes (e.g., viruses, toxins or hormones). Ease of use, no need for centralized infrastructure and low-cost, makes these devices appealing for rapid disease identification, especially in low-resource environments. Here glycosylated polymer-coated nanoparticles are demonstrated for the sensitive, label-free detection of lectins in lateral flow and flow-through. The systems introduced here use glycans, not antibodies, to provide recognition: a "lateral flow glyco-assay," providing unique biosensing opportunities. Glycans are installed onto polymer termini and immobilized onto gold nanoparticles, providing colloidal stability but crucially also introducing assay tunability and selectivity. Using soybean agglutinin and Ricinus communis agglutinin I (RCA 120 ) as model analytes, the impact of polymer chain length and nanoparticle core size are evaluated, with chain length found to have a significant effect on signal generation-highlighting the need to control the macromolecular architecture to tune response. With optimized systems, lectins are detectable at subnanomolar concentrations, comparable to antibody-based systems. Complete lateral flow devices are also assembled to show how these devices can be deployed in the "real world." This work shows that glycan-binding can be a valuable tool in rapid diagnostics.

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Section: Introductionmentioning

confidence: 99%

Lateral Flow Glyco‐Assays for the Rapid and Low‐Cost Detection of Lectins–Polymeric Linkers and Particle Engineering Are Essential for Selectivity and Performance

Baker

Muguruza

Richards

et al. 2021

Adv Healthcare Materials

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“…Accordingly, compared to QDs, the size and z potential value of the anti-FLE mAb-QDs had signicantly changed, which was consistent with a previous report (the size increased from 10 nm to 21 nm, and the z potential changed from À41.7 mv to À32.9 mv). 32 Furthermore, as shown in Fig. 3a and b, the agarose gel electrophoresis and SDS-PAGE results showed that the QDs run faster than anti-FLE mAb-QDs under the same conditions, which indicated that the molecular weight of the uorescent probe anti-FLE mAb-QDs was signicantly larger than that of QDs.…”

Section: Resultsmentioning

confidence: 80%

Development of a fluorescent immunochromatographic assay based on quantum dots for the detection of fleroxacin

Yang

Zhou

et al. 2021

RSC Adv.

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“…Sensing of the antioxidant gallic acid in tea was achieved with N‐acetyl‐L‐cysteine‐capped CdTe QDs (LOD 0.56 μg/l; Tan, Li & Yang, 2020). Finally, QD sensors have been developed for pesticides and their derivatives, including trichloropyridinol (LOD 1.0 μg/l; Zou et al ., 2010), paraoxon and parathion (LOD 1.05 × 10 −5 μM and 4.47 × 10 −6 μM, respectively; Zheng et al ., 2011), diquat (LOD 1 × 10 − 5 μg/mg; Carrillo‐Carrión, Simonet & Valcárcel, 2011), imidacloprid, imidaclothiz and clothianidin (LOD 0.5, 0.5 and 1 μg/l, respectively; Wang et al ., 2017), acetamiprid (LOD 1 μg/l; Y. Liu et al ., 2019) and benzothiostrobin (LOD 25 μg/l; Wu et al ., 2019). Cd‐QDs have also been used for sensing plant hormones.…”

Section: Fluorescent Nanoparticles In Biological Researchmentioning

confidence: 99%

Fluorescent nanoparticles as tools in ecology and physiology

et al. 2021

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Fluorescent nanoparticles (FNPs) have been widely used in chemistry and medicine for decades, but their employment in biology is relatively recent. Past reviews on FNPs have focused on chemical, physical or medical uses, making the extrapolation to biological applications difficult. In biology, FNPs have largely been used for biosensing and molecular tracking. However, concerns over toxicity in early types of FNPs, such as cadmium-containing quantum dots (QDs), may have prevented wide adoption. Recent developments, especially in non-Cd-containing FNPs, have alleviated toxicity problems, facilitating the use of FNPs for addressing ecological, physiological and molecule-level processes in biological research. Standardised protocols from synthesis to application and interdisciplinary approaches are critical for establishing FNPs in the biologists' tool kit. Here, we present an introduction to FNPs, summarise their use in biological applications, and discuss technical issues such as data reliability and biocompatibility. We assess whether biological research can benefit from FNPs and suggest ways in which FNPs can be applied to answer questions in biology. We conclude that FNPs have a great potential for studying various biological processes, especially tracking, sensing and imaging in physiology and ecology.

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Rapid and visual detection of benzothiostrobin residue in strawberry using quantum dot-based lateral flow test strip

Cited by 47 publications

References 38 publications

Lateral Flow Glyco‐Assays for the Rapid and Low‐Cost Detection of Lectins–Polymeric Linkers and Particle Engineering Are Essential for Selectivity and Performance

Lateral Flow Glyco‐Assays for the Rapid and Low‐Cost Detection of Lectins–Polymeric Linkers and Particle Engineering Are Essential for Selectivity and Performance

Development of a fluorescent immunochromatographic assay based on quantum dots for the detection of fleroxacin

Fluorescent nanoparticles as tools in ecology and physiology

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