A Rapid Colorimetric Sensor of Clenbuterol Based on Cysteamine-Modified Gold Nanoparticles.
Demonstrated was a simple visual and rapid colorimetric sensor for detection of clenbuterol (CLB) based on gold nanoparticles (AuNPs) modified with cysteamine (CA) and characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), UV-vis. The solution color from red to blue gray with increasing clenbuterol concentration resulted from the aggregation of AuNPs. The detection limit of clenbuterol is 50 nM by naked eyes. The selectivity of CA-AuNPs detection system for clenbuterol is excellent compared with other interferents in food. This sensor has been successfully applied to detect clenbuterol in real blood sample.
['Kang|Jingyan|J|', 'Zhang|Yujie|Y|', 'Li|Xing|X|', 'Miao|Lijing|L|', 'Wu|Aiguo|A|']
D002976:Clenbuterol D003124:Colorimetry D003543:Cysteamine D006046:Gold D021621:Imaging, Three-Dimensional D053768:Metal Nanoparticles D013056:Spectrophotometry, Ultraviolet
clenbuterol gold nanoparticle colorimetric detection excellent selectivity high sensitivity