Nanocrystal production acid hydrolysis

Le Corre et al. (2011), propose another technique against limitations of the acid hydrolyses process for producing starch nanocrystals. Protocol using acid hydrolysis is only for producing small quantities of S-NC and renders a limited yield (10-15 %) after a production time of (5 days). They proposed a continuous extraction technique ... 

In this chapter, we will describe the production of cellulose nanocrystals (CNCs) by acid hydrolysis process from different cellulosic resources. Also, the drying process and extensive characterization of CNCs to better understand the inherent and processing properties of this nanomaterial with functionalization is discussed as potential nanoreinforcement. New developments in potential industrial and biomedical areas are also discussed. 

Virion templates of TMV were also used in combination with different synthetic routes for CdS, PbS, and Fe oxide nanoparticles. Nanoparticle-virion tubules were prepared by reacting a buffered solution of TMV in CdCl2 (pH 7) or TMV in Pb(N03)2 (pH 5) with H2S gas. The formation of metal sulfide nanoparticles occurred over 6 hours as observed by a uniform coating of CdS and PbS nanocrystals on the TMV surface from TEM analysis. Selected area electron diffraction of the mineralized products indicated a zinc blende crystal stracture for CdS particles and a rock salt structure for single domain PbS nanocrystals. The iron oxide nanoparticles were mineralized by the TMV templates by the oxidative hydrolysis of an Fe VFe acidic solution with NaOH. Consequently, a mineral coating of irregular ferrihydrite particles grew on the surface to a thickness of 2 nm. 

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