51
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Hong F, Chen X, Cao Y, Dong Y, Wu D, Hu F, Gan N. Enzyme- and label-free electrochemical aptasensor for kanamycin detection based on double stir bar-assisted toehold-mediated strand displacement reaction for dual-signal amplification. Biosens Bioelectron 2018; 112:202-208. [PMID: 29709830 DOI: 10.1016/j.bios.2018.04.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 03/20/2018] [Accepted: 04/07/2018] [Indexed: 12/11/2022]
Abstract
It is critically important to detect antibiotic residues for monitoring food safety. In this study, an enzyme- and label-free electrochemical aptasensor for antibiotics, with kanamycin (Kana) as a typical analyte, was developed based on a double stir bar-assisted toehold-mediated strand displacement reaction (dSB-TMSDR) for dual-signal amplification. First, we modified two gold electrodes (E-1 and E-2) with different DNA probes (S1/S2 hybrid probe in E-1 and DNA fuel strand S3 in E-2). In the presence of Kana, an S1/S2 probe can be disassembled from E-1 to form an S2/Kana complex in supernatant. The S2/Kana could react with S3 on E-2 to form S2/S3 hybrid and release Kana through TMSDR. After then, the target recycling was triggered. Subsequently, the formed S2/S3 hybrid can also trigger a hybridization chain reaction (HCR). Consequently, the dual-signal amplification strategy was established, which resulted in many long dsDNA chains on E-2. The chains can associate with methylene blue (MB) as redox probes to produce a current response for the quantification of Kana. The assay exhibited high sensitivity and specificity with a detection limit at 16 fM Kana due to the dual-signal amplification. The double stir bars system can both increase phase separation and prevent leakage of DNA fuel to reduce background interference. Moreover, it allows flexible sequence design of the TMSDR probes. The assay was successfully employed to detect Kana residues in food and showed potential application value in food safety detection.
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Affiliation(s)
- Feng Hong
- Faculty of material science and chemical engineering, Ningbo University, Ningbo 315211, China
| | - Xixue Chen
- Faculty of material science and chemical engineering, Ningbo University, Ningbo 315211, China
| | - Yuting Cao
- Faculty of material science and chemical engineering, Ningbo University, Ningbo 315211, China.
| | - Youren Dong
- Faculty of material science and chemical engineering, Ningbo University, Ningbo 315211, China
| | - Dazhen Wu
- Faculty of material science and chemical engineering, Ningbo University, Ningbo 315211, China
| | - Futao Hu
- Faculty of marine, Ningbo University, Ningbo 315211, China
| | - Ning Gan
- Faculty of material science and chemical engineering, Ningbo University, Ningbo 315211, China.
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52
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Zhu Y, Li W, Tan S, Chen T. Label-Free and Simple G-quadruplex-based Turn-Off Fluorescence Assay for the Detection of Kanamycin. ANAL LETT 2018. [DOI: 10.1080/00032719.2017.1387136] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Yuqing Zhu
- School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, China
| | - Wei Li
- School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, China
| | - Shuzhen Tan
- School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, China
| | - Tianxiao Chen
- School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, China
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53
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Wang C, Wang Q, Tan R. Preparation of enzyme-functionalized carbon nanotubes and their application in glucose and Fe2+ detection through “turn on” and “turn off” approaches. Analyst 2018; 143:4118-4127. [DOI: 10.1039/c8an00823j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, we report the preparation of enzyme-conjugated carbon nanotubes for the detection of Fe2+ and glucose with enhanced signal intensity.
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Affiliation(s)
- Chengke Wang
- College of Food and Biological Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Qingqing Wang
- College of Food and Biological Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Rong Tan
- College of Food and Biological Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
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54
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Su H, Liu T, Huang L, Huang J, Cao J, Yang H, Ye J, Liu J, Qian K. Plasmonic Janus hybrids for the detection of small metabolites. J Mater Chem B 2018; 6:7280-7287. [DOI: 10.1039/c8tb01587b] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Janus hybrids with amphiphilic structures were used for the sensitive detection of small metabolites.
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Affiliation(s)
- Haiyang Su
- School of Biomedical Engineering
- Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- People's Republic of China
| | - Tingting Liu
- School of Biomedical Engineering
- Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- People's Republic of China
| | - Lin Huang
- School of Biomedical Engineering
- Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- People's Republic of China
| | - Jingyi Huang
- School of Biomedical Engineering
- Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- People's Republic of China
| | - Jing Cao
- School of Biomedical Engineering
- Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- People's Republic of China
| | - Hengquan Yang
- School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Jian Ye
- School of Biomedical Engineering
- Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- People's Republic of China
| | - Jian Liu
- School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- People's Republic of China
- State Key Laboratory of Catalysis
| | - Kun Qian
- School of Biomedical Engineering
- Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- People's Republic of China
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55
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Luan Q, Gan N, Cao Y, Li T. Mimicking an Enzyme-Based Colorimetric Aptasensor for Antibiotic Residue Detection in Milk Combining Magnetic Loop-DNA Probes and CHA-Assisted Target Recycling Amplification. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:5731-5740. [PMID: 28654744 DOI: 10.1021/acs.jafc.7b02139] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A mimicking-enzyme-based colorimetric aptasensor was developed for the detection of kanamycin (KANA) in milk using magnetic loop-DNA-NMOF-Pt (m-L-DNA) probes and catalytic hairpin assembly (CHA)-assisted target recycling for signal amplification. The m-L-DNA probes were constructed via hybridization of hairpin DNA H1 (containing aptamer sequence) immobilized magnetic beads (m-H1) and signal DNA (sDNA, partial hybridization with H1) labeled nano Fe-MIL-88NH2-Pt (NMOF-Pt-sDNA). In the presence of KANA and complementary hairpin DNA H2, the m-L-DNA probes decomposed and formed an m-H1/KANA intermediate, which triggered the CHA reaction to form a stable duplex strand (m-H1-H2) while releasing KANA again for recycling. Consequently, numerous NMOF-Pt-sDNA as mimicking enzymes can synergistically catalyze 3,3',5,5'-tetramethylbenzidine (TMB) for color development. The aptasensor exhibited high selectivity and sensitivity for KANA in milk with a detection limit of 0.2 pg mL-1 within 30 min. The assay can be conveniently extended for on-site screening of other antibiotics in foods by simply changing the base sequence of the probes.
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Affiliation(s)
- Qian Luan
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University , Ningbo, 315211, PR China
| | - Ning Gan
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University , Ningbo, 315211, PR China
| | - Yuting Cao
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University , Ningbo, 315211, PR China
| | - Tianhua Li
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University , Ningbo, 315211, PR China
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56
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Balalakshmi C, Gopinath K, Govindarajan M, Lokesh R, Arumugam A, Alharbi NS, Kadaikunnan S, Khaled JM, Benelli G. Green synthesis of gold nanoparticles using a cheap Sphaeranthus indicus extract: Impact on plant cells and the aquatic crustacean Artemia nauplii. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:598-605. [PMID: 28697477 DOI: 10.1016/j.jphotobiol.2017.06.040] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 06/24/2017] [Accepted: 06/27/2017] [Indexed: 11/30/2022]
Abstract
The impact of green-fabricated gold nanoparticles on plant cells and non-target aquatic species is scarcely studied. In this research, we reported an environment friendly technique for the synthesis of gold nanoparticles (Au NPs) using the Sphaeranthus indicus leaf extract. The formation of the metal NPs was characterized by UV-Visible and FT-IR spectroscopy, XRD, SEM and TEM analyses. The UV-Visible spectra of Au NPs showed a surface plasmon resonance peak at 531nm. FT-IR analysis indicated functional bio-molecules associated with Au NPs formation. The crystalline nature of Au nanoparticles was confirmed by their XRD diffraction pattern. TEM revealed the spherical shape with a mean particle size of 25nm. Au NPs was tested at 0, 1, 3, 5, 7 and 10% doses in mitotic cell division assays, pollen germination experiments, and in vivo toxicity trials against the aquatic crustacean Artemia nauplii. Au NPs did not show any toxic effects on plant cells and aquatic invertebrates. Notably, Au NPs promoted mitotic cell division in Allium cepa root tip cells and germination of Gloriosa superba pollen grains. Au NPs showed no mortality on A. nauplii, all the tested animals showed 100% survivability. Therefore, these Au NPs have potential applications in the development of pollen germination media and plant tissue culture.
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Affiliation(s)
- Chinnasamy Balalakshmi
- Department of Nanoscience and Technology, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Kasi Gopinath
- Department of Botany, Alagappa University, Karaikudi 630 003, Tamil Nadu, India.
| | - Marimuthu Govindarajan
- Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India
| | - Ravi Lokesh
- School of Biosciences and Technology, VIT University, Vellore 632014, Tamil Nadu, India
| | - Ayyakannu Arumugam
- Department of Botany, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Naiyf S Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Shine Kadaikunnan
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Jamal M Khaled
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; The BioRobotics Institute, Scuola Superiore Sant'Anna, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
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57
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Liao H, Liu G, Liu Y, Li R, Fu W, Hu L. Aggregation-induced accelerating peroxidase-like activity of gold nanoclusters and their applications for colorimetric Pb2+ detection. Chem Commun (Camb) 2017; 53:10160-10163. [DOI: 10.1039/c7cc05409b] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this study, we found that the peroxidase-like catalytic activities of Au-NCs are nearly 10-fold increased after Pb2+-induced aggregation.
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Affiliation(s)
- Hong Liao
- Chongqing Key Laboratory of Green Synthesis and Applications
- and Chongqing Key Laboratory of Inorganic Functional Materials
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
| | - Guangjuan Liu
- Chongqing Key Laboratory of Green Synthesis and Applications
- and Chongqing Key Laboratory of Inorganic Functional Materials
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
| | - Yun Liu
- Chongqing Key Laboratory of Green Synthesis and Applications
- and Chongqing Key Laboratory of Inorganic Functional Materials
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
| | - Rong Li
- Chongqing Key Laboratory of Green Synthesis and Applications
- and Chongqing Key Laboratory of Inorganic Functional Materials
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
| | - Wensheng Fu
- Chongqing Key Laboratory of Green Synthesis and Applications
- and Chongqing Key Laboratory of Inorganic Functional Materials
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
| | - Lianzhe Hu
- Chongqing Key Laboratory of Green Synthesis and Applications
- and Chongqing Key Laboratory of Inorganic Functional Materials
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
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