Particulate leaching

This work aimed to introduce nanosized SiO2 into the CS matrix to produce three-dimensional (3D) scaffolds by solvent casting combined with salt leaching using NaCl as a porogen agent. The amount of the porogen to polymer was varied to produce 3D CS/SiO2 scaffolds with suitable pore sizes and porosity.

7p dianmotminh02 03-05-2024 2 1   Download

Part 1 book "Coulson and Richardson's chemical engineering (Vol 2: Particle technology and separation processes)" includes content: Particulate solids; particle size reduction and enlargement; motion of particles in a fluid; flow of fluids through granular beds and packed columns; sedimentation; fluidisation; liquid filtration; membrane separation processes; centrifugal separations; leaching; distillation.

320p muasambanhan09 12-03-2024 6 0   Download

Part 2 book "Chemical process equipment" includes content: disintegration, agglomeration, and size separation of particulate solids; distillation and gas absorption; extraction and leaching; adsorption and ion exchange; crystallization from solutions and melts; chemical reactors; process vessels; membrane separations; gas solid separations; costs of individual equipment.

453p muasambanhan09 12-03-2024 3 0   Download

Porogen leaching is one of the most common methods used for preparation of scaffolds with controlled porosity. The particulate leaching method is totally based upon the dispersion of porogen (salt, sugar and wax) either in liquid particulates or powdered materials (Hou et al., 2003; Lee et al., 2004, Nazarov et al., 2004 Vepari & Kaplan, 2007) by the process of evaporation, cross linking or other reaction liquid may be solidified. These porogens act as place holder for pore and interconnection of the pores in the actual scaffolds fabrication technique.

84p quynho77 13-11-2012 82 3   Download

An appropriate liquid-liquid phase separation is critical for the preparation of nanofibers and does not occur in all solvents that’s why selection of solvent and phase separation temperature is crucial for the formation of nanofibers. When the condition are favourable, liquid-liquid phase separation produce three dimensional fibrous structure with nano scaled architecture similar to that of collagen type I, and used in various biomedical applications.

17p quynho77 13-11-2012 43 1   Download

Particulate leaching is one of the popular techniques that are widely used to fabricate scaffolds for tissue engineering applications (Ma & Langer, 1999; Lu et al, 2000). Salt, wax or sugars known as porogens are used to create the pores or channels. Here salt is grounded into small particles and those particles that have desired size are poured into a mold and filled with the porogen. A polymer solution is then cast into the salt-filled mold. After the evaporation of the solvent, the salt crystals are leached away using water to form the pores of the scaffold. The process...

26p quynho77 13-11-2012 33 0   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: The role of particle size of particulate nano-zinc oxide wood preservatives on termite mortality and leach resistance

5p sting04 08-02-2012 49 5   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Correction: The role of particle size of particulate nano-zinc oxide wood preservatives on termite mortality and leach resistance

1p sting04 07-02-2012 50 2   Download