A turn-on fluorescent aptasensor for ampicillin detection based on gold nanoparticles and CdTe QDs

Yu, Weidao; Hao, Aiyue; Mei, Yan‐Zhen; Yang, Yaqiong; Dai, Chuan‐Chao

doi:10.1016/j.microc.2022.107454

Cited by 18 publications

(10 citation statements)

References 29 publications

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“…E to H adapted with permission from ref. 88 the number of acceptors around a single donor in a centrosymmetric donor-acceptor system increases the ET efficiency, which was experimentally confirmed and resulted in a maximum efficiency of B80% (Fig. 7E).…”

Section: Plasmon-quenched Fluorescence (Pqf) In Metal-qd Nanohybridssupporting

confidence: 59%

“…Yang and Dai et al applied QD-AuNP NSET for ampicillin (AMP) sensing in liquid samples. 88 Their metal-QD nanohybrids comprised AuNPs (diameter B15 nm) surface-functionalized with DNA aptamers against AMP and CdTe QDs (diameter B4 nm, l em B 530 nm) surface-functionalized with complementary DNA (cDNA) (Fig. 6E).…”

Section: Plasmon-quenched Fluorescence (Pqf) In Metal-qd Nanohybridsmentioning

confidence: 99%

“…(H) Selectivity of AMP assay tested against different AMP analogs and milk components. E to H adapted with permission from ref 88…”

mentioning

confidence: 99%

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Plasmonic quenching and enhancement: metal–quantum dot nanohybrids for fluorescence biosensing

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Section: Plasmon-quenched Fluorescence (Pqf) In Metal-qd Nanohybridssupporting

confidence: 59%

Section: Plasmon-quenched Fluorescence (Pqf) In Metal-qd Nanohybridsmentioning

confidence: 99%

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Plasmonic quenching and enhancement: metal–quantum dot nanohybrids for fluorescence biosensing

et al. 2023

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“…Several researchers utilized aptamer–AuNP-based fluorometric sensing mechanisms to realize the detection of biomolecules with high detection limits or high fluorescence recovery rates. Yu et al [ 49 ] designed a fluorescent aptasensor for ampicillin (AMP) detection by utilizing CdTe quantum dots (QDs) and AuNPs (see Figure 4 A). Aptamer-modified AuNPs hybridized with CS-functionalized CdTe QDs to form the complexes.…”

Section: Strategies For Nanoparticle-based Aptasensorsmentioning

confidence: 99%

Section: Strategies For Nanoparticle-based Aptasensorsmentioning

confidence: 99%

Recent Advances in Biomolecular Detection Based on Aptamers and Nanoparticles

Ouyang

Chen

et al. 2023

Biosensors

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The fast, accurate detection of biomolecules, ranging from nucleic acids and small molecules to proteins and cellular secretions, plays an essential role in various biomedical applications. These include disease diagnostics and prognostics, environmental monitoring, public health, and food safety. Aptamer recognition (DNA or RNA) has gained extensive attention for biomolecular detection due to its high selectivity, affinity, reproducibility, and robustness. Concurrently, biosensing with nanoparticles has been widely used for its high carrier capacity, stability and feasibility of incorporating optical and catalytic activity, and enhanced diffusivity. Biosensors based on aptamers and nanoparticles utilize the combination of their advantages and have become a promising technology for detecting of a wide variety of biomolecules with high sensitivity, reliability, specificity, and detection speed. Via various sensing mechanisms, target biomolecules have been quantified in terms of optical (e.g., colorimetric and fluorometric), magnetic, and electrical signals. In this review, we summarize the recent advances in and compare different aptamer–nanoparticle-based biosensors by nanoparticle types and detection mechanisms. We also share our views on the highlights and challenges of the different nanoparticle-aptamer-based biosensors.

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Carbon-based nanozymes: design, catalytic mechanisms, and environmental applications

Zhuang,

Yu,

Dong

et al. 2024

Anal Bioanal Chem

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A turn-on fluorescent aptasensor for ampicillin detection based on gold nanoparticles and CdTe QDs

Cited by 18 publications

References 29 publications

Plasmonic quenching and enhancement: metal–quantum dot nanohybrids for fluorescence biosensing

Plasmonic quenching and enhancement: metal–quantum dot nanohybrids for fluorescence biosensing

Recent Advances in Biomolecular Detection Based on Aptamers and Nanoparticles

Carbon-based nanozymes: design, catalytic mechanisms, and environmental applications

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