In vivo Dynamic Detection of Aloe Polysaccharides Using Carbon Fiber Microelectrodes Modified with Gold Nanoparticles

An electrochemical method for real-time dynamic detection of aloe polysaccharide in water storage tissue gel layer of aloe leaves was established. The aloe polysaccharides in aloe plants under different growth conditions were monitored in vivo by high-sensitivity carbon fiber microelectrodes modified with gold nanoparticles (AuNPs/CFME), to evaluate the real-time changes of aloe polysaccharides in the environment under stress. The experimental results show that the AuNPs/CFME has significant electrocatalytic activity to aloe polysaccharides in aloe water storage tissue. The dynamic changes of aloe polysaccharide in aloe plants under different growth environments have significant statistical differences. The modified electrode was successfully applied to the dynamic change of aloe polysaccharide in aloe plants for real-time monitoring, which made the electrochemical detection method a promising method for monitoring the photosynthesis intensity of plants.