☆ 4.7 Article

Concatenated dynamic DNA network modulated SERS aptasensor based on gold-magnetic nanochains and Au@Ag nanoparticles for enzyme-free amplification analysis of tetracycline

ANALYTICA CHIMICA ACTA (2023)

Related references

Note: Only part of the references are listed.

Review Food Science & Technology

Split aptamer acquisition mechanisms and current application in antibiotics detection: a short review

Hua Ye et al.

Summary: Antibiotic contamination is a global issue and there is a need for sensitive, specific and simple technology for antibiotic detection. Biosensors based on split aptamers have gained extensive attention due to their higher sensitivity, lower cost, false positive/negative avoidance and flexibility in sensor design. However, the acquisition and mechanism of splitting antibiotic aptamers are still unknown.

CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION (2023)

Add to Collection

Article Chemistry, Physical

Bispecific aptamer-initiated 3D DNA nanomotor biosensor powered by DNAzyme and entropy-driven circuit for sensitive and specificity detection of lysozyme

Shuo Qi et al.

Summary: In this study, a 3D DNA nanomotor biosensor powered by DNAzyme and entropy-driven circuit was developed for sensitive and specific detection of lysozyme using bispecific aptamer as initiators. This biosensor integrates walking and rolling strategies to achieve excellent signal amplification capability. It can respond to lysozyme with high specificity and operate at high speed to release signals, independent of protease. The biosensor shows a detection limit of 0.01 pg/mL and a linear range of 0.05 pg/mL-500 ng/mL for lysozyme, and exhibits high accuracy in the analysis of real samples, indicating its great potential for non-nucleic acid target detection.

NANO RESEARCH (2023)

Add to Collection

Article Chemistry, Applied

G-quadruplex DNAzyme as peroxidase mimetic in a colorimetric biosensor for ultrasensitive and selective detection of trace tetracyclines in foods

Yue Tang et al.

Summary: The colorimetric method, despite being able to determine initial results by naked eyes, faces the challenge of low sensitivity for antibiotics detection in food. A ultrasensitive colorimetric biosensor based on G-quadruplex DNAzyme was proposed for rapid detection of trace tetracycline antibiotics. This biosensor has a low detection limit and good recovery rates, showing promising application prospects for tetracycline detection in foods.

FOOD CHEMISTRY (2022)

Add to Collection

Review Chemistry, Physical

State of the art in flexible SERS sensors toward label-free and onsite detection: from design to applications

Liping Xie et al.

Summary: This review presents the latest advances in flexible surface-enhanced Raman scattering (SERS) sensors. The focus is on engineering plasmonic substrates to improve the performance of flexible SERS devices. Strategies for constructing flexible SERS sensors for point-of-care detection are discussed in depth. Advanced algorithms for assisting SERS data processing are also presented, along with the promising applications of flexible SERS sensors in various fields.

NANO RESEARCH (2022)

Add to Collection

Article Chemistry, Analytical

Catalytic hairpin assembly assisted target-dependent DNAzyme nanosystem coupled with AgPt@Thi for the detection of lead ion

Xiaoyan Sun et al.

Summary: An ultrasensitive electrochemical biosensor based on catalytic hairpin assembly and DNAzyme signal amplification strategy is proposed for the detection of lead ions. The biosensor utilizes polyethyleneimine-reduced graphene oxide combined with gold@silver nanosheets as electrode substrate modification materials. The biosensor demonstrates a good linear relationship and low detection limit, enabling trace detection of lead ions in tap water samples and providing a platform for the detection of other targets.

ANALYTICA CHIMICA ACTA (2022)

Add to Collection

Article Chemistry, Analytical

Aptamer-Initiated Catalytic Hairpin Assembly Fluorescence Assayfor Universal, Sensitive Exosome Detection

Jiaqi Zhou et al.

Summary: In this study, a new method for universal and sensitive detection of cancer-cell-derived exosomes was proposed for early cancer diagnosis. The method, called aptamer-initiated catalytic hairpin assembly (AICHA) fluorescence assay, showed excellent specificity, sensitivity, and reliability in detecting cancer-derived exosomes in serum samples, indicating its significant potential for protein biomarker analysis and cancer diagnosis.

ANALYTICAL CHEMISTRY (2022)

Add to Collection

Article Biophysics

DNA strand displacement based surface-enhanced Raman scattering-fluorescence dual-mode nanoprobes for quantification and imaging of vascular endothelial growth factor in living cells

Lu Huang et al.

Summary: In this study, dual-mode nanoprobes were developed based on functionalized magnetic nanoparticles for in situ quantification and imaging of VEGF in living cells. The method showed good linearity and high selectivity in the quantification and imaging of trace VEGF. This dual-mode approach holds great potential for the analysis of biomarkers in complex biological samples.

BIOSENSORS & BIOELECTRONICS (2022)

Add to Collection

Article Food Science & Technology

A surface-enhanced Raman scattering aptasensor for ratiometric detection of aflatoxin B1 based on graphene oxide-Au@Ag core-shell nanoparticles complex

Peifang Chen et al.

Summary: A novel ratiometric surface-enhanced Raman scattering (SERS) aptasensor based on graphene oxide (GO) was constructed for reliable detection of Aflatoxin B1 (AFB1). The sensor achieved a low limit of detection (LOD) of 0.1 pg/mL and showed potential application prospects in the food detection field, with a good negative correlation (R2 = 0.992) and a quantifiable test range from 0.0001 ng/mL to 100 ng/mL.

FOOD CONTROL (2022)

Add to Collection

Article Chemistry, Analytical

Fluorescence imaging of glutathione with aptasensor and monitoring deoxynivalenol-induced oxidative stress in living cells

You Zhou et al.

Summary: In this study, an aptamer-based nanoprobe was developed for real-time monitoring of intracellular glutathione (GSH) levels and evaluation of oxidative stress status. The results showed that the nanoprobe had high sensitivity and specificity for GSH, and the limit of detection was low. The study also revealed the saturation point of oxidative stress in living cells induced by deoxynivalenol (DON) concentration.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

Add to Collection

Article Food Science & Technology

Colorimetric aptasensor for on-site detection of acetamiprid with hybridization chain reaction-assisted amplification and smartphone readout strategy

Chengnan Xu et al.

Summary: An instruments-free colorimetric assay was developed for the detection of acetamiprid using hybridization chain reaction (HCR)-based amplification strategy. The assay exhibited high sensitivity with a detection limit of 1.74 μM and excellent selectivity. A smartphone readout-based strategy was proposed for visual quantification of acetamiprid, showing promising application potential for on-site detection.

FOOD CONTROL (2022)

Add to Collection

Article Nanoscience & Nanotechnology

Intracellular miRNA Imaging Based on a Self-Powered and Self-Feedback Entropy-Driven Catalyst-DNAzyme Circuit

Chao Xing et al.

Summary: The study demonstrates a self-powered and self-feedback DNAzyme amplification circuit using MnO2 nanosheet-mediated entropy-driven catalyst (EDC)-DNAzyme nanoprobe for sensitive imaging of intracellular microRNA. This strategy provides a versatile approach for the construction of self-powered and self-feedback DNA circuits, enabling effective detection of intracellular molecules with enhanced sensitivity.

ACS APPLIED MATERIALS & INTERFACES (2022)

Add to Collection

Article Chemistry, Analytical

An aptasensor for cadmium ions detection based on PEI-MoS2@Au NPs 3D flower-like nanocomposites and Thi-PtPd NPs core-shell sphere

Mengyang Li et al.

Summary: A novel ultrasensitive electrochemical aptasensor using PEI-MoS2 NFs@Au NPs for Cd2+ detection was proposed, showing high sensitivity and promising application prospects.

ANALYTICA CHIMICA ACTA (2022)

Add to Collection

Article Chemistry, Applied

A molecularly-imprinted SERS sensor based on a TiO2@Ag substrate for the selective capture and sensitive detection of tryptamine in foods

Chen Chen et al.

Summary: A molecularly imprinted surface-enhanced Raman spectroscopy (SERS) sensor was developed for selective capture and sensitive detection of tryptamine in foods. The sensor showed high sensitivity, selectivity, and could be used for tryptamine detection in actual samples.

FOOD CHEMISTRY (2022)

Add to Collection

Article Chemistry, Analytical

Proximity binding induced nucleic acid cascade amplification strategy for ultrasensitive homogeneous detection of PSA

Hong Zhou et al.

Summary: This study developed a nonenzymatic and ultrasensitive method for analyzing human prostate specific antigen, achieving detection of PSA concentration as low as 0.73 μg mL(-1) using a nucleic acid circuit amplification strategy. The sensing method avoids the use of sophisticated equipment and artificial enzymes, reducing experimental complexity and constraints.

ANALYTICA CHIMICA ACTA (2021)

Add to Collection

Article Chemistry, Analytical

Real-Time Investigation of Intracellular Polynucleotide Kinase Using a Cascaded Amplification Circuit

Jinhua Shang et al.

Summary: The versatile cascaded DNA amplification circuit enables accurate evaluation of intracellular PNK activity, providing an important method for monitoring kinase activity.

ANALYTICAL CHEMISTRY (2021)

Add to Collection

Article Engineering, Environmental

Emerging core-shell nanostructures for surface-enhanced Raman scattering (SERS) detection of pesticide residues

Ting Wang et al.

Summary: Pesticide residues pose a significant threat to human health and the environment, driving the need for rapid and effective detection methods. Core-shell nanostructures as novel SERS substrates have been widely utilized in rapid pesticide detection research. Understanding and monitoring pesticide residues can be improved through the classification and evaluation of different core-shell nanostructures and early-warning analysis.

CHEMICAL ENGINEERING JOURNAL (2021)

Add to Collection

Article Engineering, Environmental

Ultrasensitive and visual detection of tetracycline based on dual-recognition units constructed multicolor fluorescent nano-probe

Lina Zhang et al.

Summary: The novel dual-response ratiometric fluorescent nano-probe SiQDs-Cit-Eu has been developed for ultra-sensitive and visual detection of tetracycline residues. It shows double response signals and significant color changes, with a detection limit of 7.1 nM.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Add to Collection

Review Chemistry, Analytical

Nucleic acid circuits for cell imaging: From the test tube to the cell

Dan Zhao et al.

TRAC-TRENDS IN ANALYTICAL CHEMISTRY (2020)

Add to Collection

Article Chemistry, Analytical

Fabrication of Fe3O4/Au@ATP@Ag Nanorod sandwich structure for sensitive SERS quantitative detection of histamine

Ting Zhou et al.

ANALYTICA CHIMICA ACTA (2020)

Add to Collection

Article Biophysics

Aptamer-integrated nucleic acid circuits for biosensing: Classification, challenges and perspectives

Xiaohong Zhou et al.

BIOSENSORS & BIOELECTRONICS (2020)

Add to Collection

Article Chemistry, Analytical

Au@Ag core-shell nanoparticles for microRNA-21 determination based on duplex-specific nuclease signal amplification and surface-enhanced Raman scattering

Wei Xu et al.

MICROCHIMICA ACTA (2020)

Add to Collection

Article Chemistry, Applied

Bridging Fe3O4@Au nanoflowers and Au@Ag nanospheres with aptamer for ultrasensitive SERS detection of aflatoxin B1

Huirong He et al.

FOOD CHEMISTRY (2020)

Add to Collection

Article Chemistry, Multidisciplinary

Quantitative SERS-Based Detection and Elimination of Mixed Hazardous Additives in Food Mediated by the Intrinsic Raman Signal of TiO2 and Magnetic Enrichment

Yiran Tian et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2020)

Add to Collection

Article Chemistry, Analytical

Vesicular supramolecular solvent-based microextraction followed by high performance liquid chromatographic analysis of tetracyclines

Netsirin Gissawong et al.

TALANTA (2019)

Add to Collection

Article Biophysics

An electrochemical strategy for tetracycline detection coupled triple helix aptamer probe with catalyzed hairpin assembly signal amplification

Yonghong Wang et al.

BIOSENSORS & BIOELECTRONICS (2019)

Add to Collection

Article Biochemical Research Methods

A receptor-based chemiluminescence enzyme linked immunosorbent assay for determination of tetracyclines in milk

Ge Wang et al.

ANALYTICAL BIOCHEMISTRY (2019)

Add to Collection

Article Chemistry, Analytical

Visible-light-driven charge transfer to significantly improve surface-enhanced Raman scattering (SERS) activity of self-cleaning TiO2/Au nanowire arrays as highly sensitive and recyclable SERS sensor

Xin Zhao et al.

SENSORS AND ACTUATORS B-CHEMICAL (2019)

Add to Collection

Article Chemistry, Multidisciplinary

Dual-microRNA-controlled double-amplified cascaded logic DNA circuits for accurate discrimination of cell subtypes

Ke Quan et al.

CHEMICAL SCIENCE (2019)

Add to Collection

Article Chemistry, Physical

Programmable DNA-responsive microchip for the capture and release of circulating tumor cells by nucleic acid hybridization

Shan Guo et al.

NANO RESEARCH (2018)

Add to Collection

Article Chemistry, Physical

In-situ SERS monitoring of reaction catalyzed by multifunctional Fe3O4@TiO2@Ag-Au microspheres

Jianhua Shen et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2017)

Add to Collection

Article Food Science & Technology

Analysis of tetracyclines in chicken tissues and dung using LC-MS coupled with ultrasound-assisted enzymatic hydrolysis

Qian Zhou et al.

FOOD CONTROL (2014)

Add to Collection

Article Chemistry, Multidisciplinary

Size Tunable Au@Ag Core Shell Nanoparticles: Synthesis and Surface-Enhanced Raman Scattering Properties

Akshaya K. Samal et al.

LANGMUIR (2013)

Add to Collection

© Peeref 2019-2024. All rights reserved.