Temperature is a important factor in synthesis nanoparticle.
But, how to choose a appropriate temperature to synthesis nanoparticle or to growth on the core?
Dear Chang
Your question is good but it doesn't have some exact answer. You just pick some temperature depending upon your method and then give it a shot. From SEM/TEM you can see the morphology. Then by doing the experiment on different temperatures you come to know what is your desired morphology and then move accordingly. So all I want to say is that you have to do a lot of experiments to optimize conditions according to your own desire.
Good luck!
It's depend on your method. chemical or physical method!!!. in some methods, tempreture can be eefective on the final structure and properties.
It will depend most primarily on the bioactive used to load inside nanoparticles. The temperaturs should be such that it should not deggrade the bioactive.
# The secondly it will depend on the local temperature required to convert components into nanoparticle. For example in case of ;gelatin nanoparticles' it is about 50-55 degree, because only above this temeperature gelatin can form nanoparticles.
Another example is gold nanoparticles that require 100 degree during its synthesis, so it also dpends on method of preparation.
Thanks everybody.
And Dear Rakesh, how do you find the local temperature required to convert components into nanoparticle?
( I mean that you find it by your experiment or some reference said the local temperature required for the nanoparticle? )
If no information on your system is available in literature, you'll probably have to make a temperature series experiment. Look also for data on chemically similar compounds.
As suggested above trial and error can help. It is important also to stress that temperature selection is of particular importance because it directly affects the free energy of the system (i.e. driving force of nanoparticle formation) and the kinetics of the process (i.e. whether the transformation is controlled by nucleation or crystal growth). The latter factor contributes to determining the particle size of the outcome.
- Badges
- Science topic
- Similar topics
- Chemistry
- Nanotechnology
- Nanostructured Materials
- Nanoparticles