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You searched for: Subject "tobramycin" Remove constraint Subject: "tobramycin" Journal Food chemistry Remove constraint Journal: Food chemistry
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1. Label free aptasensor for ultrasensitive detection of tobramycin residue in pasteurized cow’s milk based on resonance scattering spectra and nanogold catalytic amplification

Author:
Yan, Shang; Lai, Xiaoxia; Wang, Yuxian; Ye, Nengsheng; Xiang, Yuhong
Source:
Food chemistry 2019 v.295 pp. 36-41
ISSN:
0308-8146
Subject:
tobramycin,   etc   ; aptasensors; aqueous solutions; copper sulfate; cuprous oxide; detection limit; milk; nanogold; oligonucleotides; pasteurization; spectroscopy;     Show all 11 Subjects
Abstract:
... TOB aptamer can be adsorbed on the AuNPs surface to form AuNPs-aptamer complexation to prevent AuNPs aggregation in high salt solution. When TOB was added to the AuNPs solution, the aptamer would bind with TOB and depart from the AuNPs surface. The amount of the AuNPs-aptamer complexation depends on the TOB concentration. Different concentration of AuNPs-aptamer can catalyze the reduction reaction ...
DOI:
10.1016/j.foodchem.2019.05.110

2. Colorimetric aptasensors for determination of tobramycin in milk and chicken eggs based on DNA and gold nanoparticles

Author:
Ma, Qiang; Wang, Yuxian; Jia, Jie; Xiang, Yuhong
Source:
Food chemistry 2018 v.249 pp. 98-103
ISSN:
0308-8146
Subject:
tobramycin,   etc   ; aptasensors; chicken eggs; color; colorimetry; detection limit; milk; nanogold; oligonucleotides; single-stranded DNA;     Show all 10 Subjects
Abstract:
... Colorimetric aptasensors were designed for detection of tobramycin (TOB) based on unmodified gold nanoparticles (AuNPs) and single-strand DNA (ssDNA). In the absence of TOB, the DNA aptamer was coated on the surface of AuNPs to keep it against salt-induced aggregation. In the presence of TOB, aptamer will bind with TOB and detach from the surface of AuNPs because of higher affinities between aptam ...
DOI:
10.1016/j.foodchem.2018.01.022

3. Simultaneous determination of 15 aminoglycoside(s) residues in animal derived foods by automated solid-phase extraction and liquid chromatography–tandem mass spectrometry

Author:
Tao, Yanfei; Chen, Dongmei; Yu, Huan; Huang, Lingli; Liu, Zhaoying; Cao, Xiaoqin; Yan, Caixia; Pan, Yuanhu; Liu, Zhenli; Yuan, Zonghui
Source:
Food chemistry 2012 v.135 no.2 pp. 676-683
ISSN:
0308-8146
Subject:
tobramycin,   etc   ; amikacin; apramycin; carboxylic acids; dairy cows; eggs; ethylene; hens; kidneys; liquid chromatography; liver; mass spectrometry; muscles; neomycin; netilmicin; phosphates; quantitative analysis; solid phase extraction; spectinomycin; streptomycin; swine;     Show all 21 Subjects
Abstract:
... An automated method has been developed for the simultaneous quantification of 15 aminoglycosides in muscle, liver (pigs, chicken and cattle), kidney (pigs and cattle), cow milk, and hen eggs by liquid chromatography tandem mass spectrometry. Homogenized samples were extracted by monopotassium phosphate buffer (including ethylene diamine tetraacetic acid), and cleaned up with auto solid-phase extra ...
DOI:
10.1016/j.foodchem.2012.04.086
PubMed:
22868145