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Purplish red - a red with a tinge of purple. purplish-red. red, redness - red color or pigment; the chromatic color resembling the hue of blood. magenta - a primary subtractive color for light; a dark purple-red color; the dye for magenta was discovered in 1859, the year of the battle of Magenta.
A colorimetric LAMP method for simultaneous visual detection of vibrio vulnificus and vibrio alginolyticus
This invention relates to the field of food testing technology, and more particularly to a colorimetric LAMP method for the simultaneous visual detection of Vibrio vulnificus and Vibrio alginolyticus. The method employs a LAMP detection system composed of DNA-functionalized gold nanospheres and gold nanorods for detecting Vibrio vulnificus and Vibrio alginolyticus, respectively, and LAMP primer pairs. This allows for the detection and determination of the following states of Vibrio vulnificus and Vibrio alginolyticus: when neither pathogen is present, the solution is transparent; when both pathogens are present, the solution is purplish-red; when only Vibrio alginolyticus is present, the solution is gray; and when only Vibrio vulnificus is present, the solution is purple. This method can accurately determine the presence or absence of Vibrio vulnificus and Vibrio alginolyticus, and the specific type of bacteria, avoiding misjudgments, missed detections, and inaccurate traceability of these two types of pathogen contamination in food safety monitoring, clinical practice, and aquaculture protection.
Owner:OCEAN UNIV OF CHINA