Rapid and highly sensitive detection of Salmonella typhimurium in lettuce by using magnetic fluorescent nanoparticles

2020 ◽  
Vol 12 (48) ◽  
pp. 5861-5868
Author(s):  
Ziang Guo ◽  
Xiaowei Huang ◽  
Zhihua Li ◽  
Jiyong Shi ◽  
Xiaodong Zhai ◽  
...  
Keyword(s):  
Salmonella Typhimurium ◽  
Leafy Vegetables ◽  
Sensitive Detection ◽  
Fluorescent Nanoparticles ◽  
Safety Assurance ◽  
Highly Efficient ◽  
Efficient Detection ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

The highly efficient detection of Salmonella typhimurium (S. typhimurium), a common foodborne bacterial, is important for the safety assurance of leafy vegetables.

A novel NIR fluorescent probe for highly sensitive detection of HNO and its application in bioimaging

2021 ◽  
Author(s):  
shenwei he ◽  
Jianming Zhu ◽  
peiyao xie ◽  
Jianfei Liu ◽  
Di Zhang ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Reactive Nitrogen Species ◽  
Physiological Process ◽  
Sensitive Detection ◽  
Detection Methods ◽  
Reactive Nitrogen ◽  
Nitrogen Species ◽  
Efficient Detection ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

Nitroxyl (HNO) as an important reactive nitrogen species (RNS), which plays an important role in multiple physiological process. Therefore, it is urgent to exploit reliable and efficient detection methods for...

A highly efficient preconcentration route for rapid and sensitive detection of endotoxin based on an electrochemical biosensor

The Analyst ◽  
2020 ◽  
Vol 145 (12) ◽  
pp. 4204-4211 ◽  
Author(s):  
Wenrui Ma ◽  
Lulu Liu ◽  
Yi Xu ◽  
Li Wang ◽  
Li Chen ◽  
...  
Keyword(s):  
Detection Limit ◽  
Electrochemical Biosensor ◽  
Sensitive Detection ◽  
Highly Efficient ◽  
Highly Sensitive ◽  
Microfluidic Biosensor ◽  
Highly Sensitive Detection

A microfluidic biosensor was designed for rapid and highly sensitive detection of endotoxin, which could be detected within 0.5 h and with a detection limit of 0.5 ng mL−1.

The mutagenicity of amino-derivatives of diphenyl ether herbicides in new Salmonella typhimurium YG tester strains

2002 ◽  
Vol 46 (11-12) ◽  
pp. 395-400 ◽  
Author(s):  
Y. Tanaka ◽  
N. Shimizu ◽  
H. Tsukatani ◽  
N. Sera ◽  
S. Kitamori
Keyword(s):  
Salmonella Typhimurium ◽  
Diphenyl Ether ◽  
Alkylating Agents ◽  
Water Environment ◽  
Metabolic Activation ◽  
Amino Derivative ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Amino Derivatives ◽  
Highly Sensitive Detection

In this study, we examined the mutagenicity of four diphenyl ether herbicides and their amino derivatives in Salmonella typhimurium TA tester strains and YG tester strains. YG tester strains have been newly developed for sensitive detection of specific chemicals. S. typhimurium YG 1021, YG 1024, YG 1026 and YG 1029 strains are sensitive to mutagenic nitoroarenes and hydroxyamines. S. typhimurium YG 3003 is a strain that is sensitive to some oxidative mutagens. And S. typhimurium YG 7108 is useful for detection of mutagenic alkylating agents. As a result, each amino derivative of diphenyl ether herbicides is more mutagenic than its parent herbicide in S. typhimurium TA and YG tester strains with metabolic activation by S9 mixture. Moreover, S. typhimurium YG tester strains are more useful for highly sensitive detection of mutagens than S. typhimurium TA tester strains. WE also examined the production of amino derivatives in a water environment from parent herbicides. It was clear that diphenyl ether herbicides rapidly transform to amino derivatives in a water environment.

Tryptamine-functionalized magnetic nanoparticles for highly sensitive detection of Salmonella Typhimurium

The Analyst ◽  
2021 ◽  
Author(s):  
Seonyeong Lee ◽  
Feixiong Chen ◽  
Tae Yoon Lee
Keyword(s):  
Magnetic Nanoparticles ◽  
Nucleic Acid ◽  
Salmonella Typhimurium ◽  
Food Poisoning ◽  
Nucleic Acid Amplification ◽  
Sensitive Detection ◽  
Nucleic Acid Amplification Tests ◽  
Functionalized Magnetic Nanoparticles ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

There is significant demand for the development of rapid, sensitive, and specific methods for detecting bacterial pathogens in order to identify the causes of food poisoning. Nucleic acid amplification tests...

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