A small plasma system using microwave oven was developed for the application of surface modification and cleaning in thin films research. The microwave oven with 800-Watt power generates 2.45-GHz frequency. The vacuum chamber was inserted into the microwave oven from the top of oven wall and it was evacuated by a rotary pump to less than 7 x 10-3 Torr. This system can generate argon and oxygen plasma at a pressure of 0.2 – 3.0 Torr. This small plasma system was applied to clean a surface of microscope glass slide using argon and oxygen plasma. To reveal the effects of argon and oxygen plasma on material surface the glass slide was measured by contact angle tensiometer. The results show that the contact angle between a water droplet and glass surface decreases with increasing the exposure time. This result indicates that the cleanness of material surface was improved by using the small plasma system.

Honey-nanofibers were fabricated by electrospinning technique in order to study their potentiality for biomedical application especially as wound healing materials. Honey/Gelatin ratios operating voltages and solution flow rates were considered as the experimental variables. All synthesized nanofibers were tested for their sizes percentages of water uptake and contact angles between the fiber surfaces and water droplets. It was found that 1) size of nanofibers and contact angle between the fiber surfaces and water droplet increased with increasing of honey in solution 2) size and percentage of water uptake of nanofibers increased with stepping up of operating voltage and 3) size of nanofibers was minimized at the flow rate of 0.06 ml/hr for each operating voltage of this study.