The further modification of the surface of the present particles with several functional molecules becomes easier due to the carbon layers, which makes the present particles more valuable.
Several approaches, from simple heat treatment in dilute systems to the combination of heat and mechanical treatments in concentrated protein solutions, have been used to obtain protein particles with varying functional properties.
The obtained composite particles with two functional layers can be used in bioengineering for immobilization of enzymes inside external mesoporous silica layer while internal superparamagnetic ferrite layer would allow magnetic separation from reaction mixture.
The functionalization of piezoelectric/ferroelectric bismuth ferrite (BiFeO3, BFO) films and particles with bi-functional organic monolayers is reported.
Particle engineering with co-processing provides a promising way to obtain various composite API and/or excipient particles with markedly improved functional properties, which makes successful tableting of them by DC possible.
The chemisorption or chemical adsorption was mediated by various mechanisms such as ion exchange between cell wall moieties and adsorbate species, complexion of adsorbate particles with cell wall functional entities, precipitation, chelation, etc. Precipitation can work in dual mode, i.e., metabolism dependent or metabolism independent.
Prospects include further use of fluorinated amphiphiles for bubble stabilization and size control, and decoration of bubble surface with functional particles (e.g. magnetic iron oxide nanoparticles).
Gilliland et al. (2004) demonstrated that individuals with the GSTM1 null or the GSTP1 I105 wild-type genotypes were more susceptible to allergic inflammation upon exposure to allergen and DE particles than were individuals with functional GSTM1 and GSTP1 variantriant.
The information provided in this review should facilitate the rational design of biopolymer particles with specific physicochemical and functional attributes, as well as stimulate further research in identifying the physicochemical origin of particle formation.
