The aim of this study was to investigate non-solvent precipitation of starch to produce nanoparticles that could be used in Pickering emulsions. The material used was waxy maize, modified with octenyl succinic anhydride. Different methods of non-solvent precipitation were investigated, and a method based on direct mixing of an 8% starch solution and ethanol (ratio 1:1) was found to produce the ...

Methods 1. Quick's Method.-The method in use in this laboratory has been basically that of Quick, StanleyBrown, and Bancroft (1935), as modified later by Quick himself and others (Biggs and Macfarlane, 1949). In this method a fresh saline emulsion is prepared daily from a stock of acetone-dried human brain powder, which is kept stored in a vacuum desiccator at 40 C. 2. Toohey's Method.-This met...

OBJECTIVES The aim of this study was to improve flowability and compressibility characteristics of starch to use as a suitable excipient in direct compression tabletting. Quasi-emulsion solvent diffusion was used as a crystal modification method. MATERIALS AND METHODS Corn starch was dissolved in hydrochloric acid at 80°C and then ethanol as a non-solvent was added with lowering temperature u...

Printing emulsions and foams in 3D The properties of porous materials can depend on the overall volume, size, and size distribution of the pores, but these can be difficult features to simultaneously control during fabrication. Emulsion or foam techniques can produce pores of only one narrow size range, but in combination with a direct ink-writing process, Minas et al. developed an approach to ...

Low color visibility and poor mechanical strength of polystyrene (PS) photonic crystal films have been the main shortcomings for the potential applications in paints or displays. This paper presents a simple method to fabricate PS/MWCNTs (multi-walled carbon nanotubes) composite photonic crystal films with enhanced color visibility and mechanical strength. First, MWCNTs was modified through rad...

Methods 1. Quick's Method.-The method in use in this laboratory has been basically that of Quick, StanleyBrown, and Bancroft (1935), as modified later by Quick himself and others (Biggs and Macfarlane, 1949). In this method a fresh saline emulsion is prepared daily from a stock of acetone-dried human brain powder, which is kept stored in a vacuum desiccator at 40 C. 2. Toohey's Method.-This met...