Nanomaterials are widely used in many applications such as medicine cosmetic industry and other. When the size of the particle is reduced the number of atoms on the surface and the ratio between surface area to volume of the material increase result in the enhancement of the material’s physical magnetic and optical properties. There are many methods to synthesize the nanoparticle such as grinding chemical reaction electrochemical method and laser ablation. In this research laser ablation was chosen to synthesize the metal nanoparticles because this method is quick and convenient and does not produce hazardous waste. The results show that the laser with 6V electric potential could synthesize the metal nanoparticles with the smallest size. The metal nanoparticles with larger size were obtained when higher electrical potential of 8V and 10V were used. In conclusion the electric potential of the laser affects the size of the metal nanoparticle obtained from laser ablation.

Research on the design of wedding dress from Rajawat pattern Koh Yor woven fabric in with laser-cutting technique has objective of design of wedding dress from Koh Yor fabric woven in Rajawat pattern by using laser-cutting technique and study of satisfaction of consumers in Amphoe Mueang Songkhla Province. The researcher studied by using concept from vegetable in type of vine in design of pattern and searched information on important principle of artistic design and information regarding Koh Yor woven fabric and inquired local experts then designed and tailor made in three styles consisting of one style of Mermaid wedding dress and two styles of Ball Gown wedding dress. The researcher surveyed about satisfaction of target groups those are working women who lived in Amphoe Mueang Songkhla Province numbering 100 women. The researcher used sampling method in type of accidental sampling analyzed information by using statistics percentage mean and standard deviation. The study result found that most respondents of questionnaires had ages from 25-30 years engaged in occupation of self-employed average income per month : 25001-35000 Baht. Most respondents had period in decision making to select wedding dress from three months to one year. The result of analyzing about satisfaction of target groups towards design of wedding dress from Koh Yor fabric woven in Rajawat pattern in with laser-cutting technique it was found that products of research in overview the respondents had satisfaction in much level. The dividing of satisfaction was in two aspects those were style of products and benefit of use. When style of wedding dress was considered the first style which there was satisfaction in first level was Style 1 Mermaid style wedding dress (mean : 3.87). The second level was style No.3 Ball Gown wedding dress (mean : 3.64) and style No.2 Ball Gown wedding dress (mean : 3.62) respectively.