Ultraviolet Light-based Method Organizes Particles Plus Controls Fluid Flow
The article published in the journal Angewandte Chemie has the latest, uncomplicated, and cost-effective technique developed using ultraviolet light for controlling particle motion and assemblage within liquids for drug delivery, chemical sensors, and fluid pumps improvement all published. The particles right from pollutants, plastic microbeads to bacterial spores are mechanized by the method to assemble and arrange at a particular location in a liquid and if wanted to shift to a new place.
According to Ayusman Sen, the various applications in nanotechnology, sensors, and drug delivery involve the defined control of the flow of fluids. Earlier the researchers had developed strategies to develop nanomotors and fluid pumps but it is after this study that the easy ways of gathering particles at a specific location to perform certain functions or move to a new location were possible. In case of sensor building for pollutant detection, the new method can help shine a light on the gold or titanium dioxide nanoparticles so as help arrange the pollutant particles or spores at a spot and make it easy for their detection. The gathering of the silica or polymer beads carrying payload like drugs or antibodies to a target in the fluid is also possible. The variation in the light intensities or the titanium dioxide or gold nanoparticles quantities can help alter the process. The systematic movement, assembly, and disassembly of the structured particles in the fluids have important applications in drug delivery and sensing.
Instead of the expensive gold nanoparticles, the titanium dioxide, a cost-friendly nanoparticle generally used in the food additives is proving potentially positive. The hexadecane instead of the salty or non-aqueous environments helps the particles assemble which is the first-ever light-driven fluid pumping in an organic medium. Anna Balazs from the University of Pittsburgh used the mathematical models to understand the system’s dynamics. The particle sorting method is currently being tested across all the limits. The squashing of colloidal quantum dots at the time of a chemical synthesis forms stable dots capable of blink-free light emission which can compete with the complex process produced dots. The Los Alamos National Laboratory researchers have found the tense colloidal quantum dots as a viable substitute for the nanoscale light sources. They can be put to use in quantum circuits, medical diagnostics, and ultrasensitive sensors.