Abstract: A process for producing a barrier composition includes subjecting a siloxane compound having 1 to 3 amino groups and an aqueous solution including water and an alcohol to hydrolysis and first-stage condensation under required conditions, subjecting a first colloidal mixture obtained and an additional alcohol to second-stage condensation, subjecting a second colloidal mixture obtained, which has a particular solid content, to heating under required conditions, and subjecting a cured product obtained to aging under required conditions. A barrier composition produced by the process is also disclosed.

Abstract: A process for producing a barrier composition includes subjecting a siloxane compound having 1 to 3 amino groups and an aqueous solution including water and an alcohol to hydrolysis and first-stage condensation under required conditions, subjecting a first colloidal mixture obtained and an additional alcohol to second-stage condensation, subjecting a second colloidal mixture obtained, which has a particular solid content, to heating under required conditions, and subjecting a cured product obtained to aging under required conditions. A barrier composition produced by the process is also disclosed.

Abstract: A method of surface treatment for zirconium oxide implants and the etching formula for the same are disclosed. The processes are carried out at room temperature. The average surface roughness Ra and the standard deviation of the implant are measured showing significant improvement while comparing with the un-treated sample and the hydrofluoric acid treated samples. The average contact angle is provided showing an almost hydrophilic surface after etched by the formula according to the present invention.

Abstract: A method of surface treatment for zirconium oxide implants and the etching formula for the same are disclosed. The processes are carried out at room temperature. The average surface roughness Ra and the standard deviation of the implant are measured showing significant improvement while comparing with the un-treated sample and the hydrofluoric acid treated samples. The average contact angle is provided showing an almost hydrophilic surface after etched by the formula according to the present invention.

Abstract: An electrolyte additive is selected from N-alkyl benzimidazole derivatives and is applicable to dye-sensitized solar cells. Accordingly, the electrolyte additive can be added to electrolyte at low concentration, and loss of function due to crystallization after long-term use can be prevented; in addition, short circuit photocurrent density and solar energy-to-electricity conversion efficiency of solar cells incorporating the electrolyte additive can be increased.

Abstract: Dispersing agent of MWCNTs and the method for preparation of homogeneous MWCNTs dispersion are disclosed. Acid yellow 9(4-amino-1-1?-azobenzene-3,4?-disulfonic acid, AY) is a good agent for multi-walled carbon nanotubes (MWCNTs). MWCNTs dispersed in AY solution was remained stable about three months and even remained stable after centrifugation at 10000 rpm for 30 min. Using MWCNTs/AY dispersion, thin-films were prepared on indium tin oxide coated glass electrode and glassy carbon electrode. Further, dried firms of MWCNTs/AY were subjected to electropolymerization in 0.1 M H2SO4 solution. Adsorbed AY molecules on MWCNTs get polymerized and then yield a polymer-MWCNTs nanocomposite film on electrode surface so as to modify properties of the electrode.

Abstract: An electrolyte additive is selected from N-alkyl benzimidazole derivatives and is applicable to dye-sensitized solar cells. Accordingly, the electrolyte additive can be added to electrolyte at low concentration, and loss of function due to crystallization after long-term use can be prevented; in addition, short circuit photocurrent density and solar energy-to-electricity conversion efficiency of solar cells incorporating the electrolyte additive can be increased.

Abstract: A composite bio-ceramic dental implant and fabricating method thereof are disclosed. The composite bio-ceramic is sintered at a temperature between 1000 and 1800° C. using the nearly inert bio-ceramic powder and the active bio-ceramic powder or the completely resorbable bio-ceramic powder. The bioactive bio-ceramic material is dispersed in the inert bio-ceramic material. Therefore, the composite bio-ceramic has enough mechanical strength and good bioactivity for dental implant.

Abstract: A bio-implant having a screw body selectively formed with nanoporous channels structure in a spiral groove and the method of making the same are disclosed. Nanoporous channels structure formed into the spiral groove of the bio-implant is carried out by the heat treatment in vacuum firstly and anodic treatment secondly. Thereafter, bioactive material is filled into the nanoporous and deposited on the implant surface by an electro-deposition process so as to increase the bioactivity and biocompatibility of the bio-implant.