Development of a colloidal gold-based lateral-flow immunoassay for the rapid detection of phenylethanolamine A in swine urine

2015 ◽  
Vol 7 (10) ◽  
pp. 4130-4137 ◽  
Author(s):  
Mingyan Dai ◽  
Yunfei Gong ◽  
Amin Liu ◽  
Lulu Zhang ◽  
Junxiao Lin ◽  
...  

Phenylethanolamine A (PEAA) is a newly emerged phenethanolamine member of the family of β-adrenergic agonists illegally used as feed additives for growth promotion.

2009 ◽  
Vol 395 (8) ◽  
pp. 2591-2599 ◽  
Author(s):  
Ming-Zhou Zhang ◽  
Min-Zi Wang ◽  
Zong-Lun Chen ◽  
Jie-Hong Fang ◽  
Mei-Ming Fang ◽  
...  

Author(s):  
Cheng Liu ◽  
Shuiqin Fang ◽  
Yachen Tian ◽  
Youxue Wu ◽  
Meijiao Wu ◽  
...  

Escherichia coli O157:H7 ( E. coli O157:H7) is a dangerous foodborne pathogen, mainly found in beef, milk, fruits, and their products, causing harm to human health or even death. Therefore, the detection of E. coli O157:H7 in food is particularly important. In this paper, we report a lateral flow immunoassay strip (LFIS) based on aggregation-induced emission (AIE) material labeling antigen as a fluorescent probe for the rapid detection of E. coli O157:H7. The detection sensitivity of the strip is 105 CFU/mL, which is 10 times higher than that of the colloidal gold test strip. This method has good specificity and stability and can be used to detect about 250 CFU of E. coli O157:H7 successfully in 25 g or 25 mL of beef, jelly, and milk. AIE-LFIS might be valuable in monitoring food pathogens for rapid detection.


2018 ◽  
Vol 266 ◽  
pp. 63-70 ◽  
Author(s):  
Wei Xiao ◽  
Caihong Huang ◽  
Fei Xu ◽  
Junjie Yan ◽  
Hongfen Bian ◽  
...  

Diagnostics ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 794
Author(s):  
Arpasiri Srisrattakarn ◽  
Patcharaporn Tippayawat ◽  
Aroonwadee Chanawong ◽  
Ratree Tavichakorntrakool ◽  
Jureerut Daduang ◽  
...  

Bloodstream infection (BSI) is a major cause of mortality in hospitalized patients worldwide. Staphylococcus aureus is one of the most common pathogens found in BSI. The conventional workflow is time consuming. Therefore, we developed a lateral flow immunoassay (LFIA) for rapid detection of S. aureus-protein A in positive blood culture samples. A total of 90 clinical isolates including 58 S. aureus and 32 non-S. aureus were spiked in simulated blood samples. The antigens were extracted by a simple boiling method and diluted before being tested using the developed LFIA strips. The results were readable by naked eye within 15 min. The sensitivity of the developed LFIA was 87.9% (51/58) and the specificity was 93.8% (30/32). When bacterial colonies were used in the test, the LFIA provided higher sensitivity and specificity (94.8% and 100%, respectively). The detection limit of the LFIA was 107 CFU/mL. Initial evaluation of the LFIA in 20 positive blood culture bottles from hospitals showed 95% agreement with the routine methods. The LFIA is a rapid, simple and highly sensitive method. No sophisticated equipment is required. It has potential for routine detection particularly in low resource settings, contributing an early diagnosis that facilitates effective treatment and reduces disease progression.


Toxins ◽  
2017 ◽  
Vol 9 (3) ◽  
pp. 79 ◽  
Author(s):  
Xiaoxiang Fu ◽  
Rushan Xie ◽  
Jian Wang ◽  
Xiaojiao Chen ◽  
Xiaohan Wang ◽  
...  

2011 ◽  
Vol 59 (17) ◽  
pp. 9319-9326 ◽  
Author(s):  
Chunmei Song ◽  
Qingtang Liu ◽  
Aimin Zhi ◽  
Jifei Yang ◽  
Yubao Zhi ◽  
...  

2017 ◽  
Vol 200 ◽  
pp. 101-106 ◽  
Author(s):  
Constanze Seidel ◽  
Sonja Peters ◽  
Erik Eschbach ◽  
Andrea T. Feßler ◽  
Boris Oberheitmann ◽  
...  

2012 ◽  
Vol 60 (46) ◽  
pp. 11491-11497 ◽  
Author(s):  
Laura Anfossi ◽  
Cristina Giovannoli ◽  
Gianfranco Giraudi ◽  
Flavia Biagioli ◽  
Cinzia Passini ◽  
...  

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