What is nanoparticle nucleation?
Nucleation is the process whereby nuclei (seeds) act as templates for crystal growth. The process of homogeneous nuclei formation can be considered thermodynamically (25, 30) by looking at the total free energy of a nanoparticle defined as the sum of the surface free energy and the bulk free energy.
What is nanoparticle growth?
The growth of nanoparticles is dependent on two mechanisms: the surface reaction and the monomer’s diffusion to the surface. A similar equation can be written for the rate of surface reaction âkâ, eq 12. The rate of the surface reaction is assumed to be independent of particle’s size.
What are inorganic nanomaterials?
Inorganic nanoparticles are non-toxic, hydrophilic, biocompatible and highly stable compared to organic materials. Nanoparticles are now having highly advanced chemical properties and many inorganic nanoparticles have been used as drug carriers.
What is primary and secondary nucleation?
Primary nucleation occurs in the absence of crystalline material of its own kind and is a stochastic process. Secondary nucleation is the birth of new crystals in the presence of parent crystals of the same substance.
What is nucleation crystallisation?
nucleation, the initial process that occurs in the formation of a crystal from a solution, a liquid, or a vapour, in which a small number of ions, atoms, or molecules become arranged in a pattern characteristic of a crystalline solid, forming a site upon which additional particles are deposited as the crystal grows.
What is the difference between organic and inorganic nanomaterials?
Inorganic nanoparticles are non-toxic, hydrophilic, biocompatible and highly stable compared to organic materials. Drug delivery systems designed for enhanced drug efficacy and reduced adverse effects have evolved accompanied by the development of novel materials.