| AVS 66th International Symposium & Exhibition | |
| Plasma Science and Technology Division | Tuesday Sessions |
| Session PS-TuP |
| Session: | Plasma Science and Technology Poster Session |
| Presenter: | Yun Jong Jang, Sungkyunkwan University, Republic of Korea |
| Authors: | Y.J. Jang, Sungkyunkwan University, Republic of Korea M.K. Mun, Sungkyunkwan University, Republic of Korea J.E. Kim, Sungkyunkwan University, Republic of Korea D.W. Kim, Sungkyunkwan University, Republic of Korea G.Y. Yeom, Sungkyunkwan University, Republic of Korea |
| Correspondent: | Click to Email |
Dopamine, known as a monoamine neurotransmitter, has functional groups such as catechol and amine. Under the state of oxidant and alkaline, the dopamine go through self-polymerization and creates polydopamine. This polymer is known to exhibit excellent adhesion (known as a mussel-inspired adhesive) to most of all organic and inorganic material surfaces. In this study, by using atmospheric pressure plasmas (dielectric barrier discharges; DBDs) with a low electron energy and a dopamine solution mist formed by piezoelectric module, a possibility of depositing functional polymer films showing the physical and chemical characteristics of polydopamine without breaking the functional group of the dopamine has been investigated for different plasma voltages. By using the lower DBD voltage of 1.5 kV, the partial dissociation of dopamine molecule for polymerization without breaking the catechol/amine functional groups of dopamine could be achieved while the use of the higher DBD voltage to 3.0 kV tends to break more functional groups of dopamine into atoms which leads to the decreased physical and chemical characteristics of polydopamine. It is believed that this atmospheric pressure plasma polymerization method of dopamine can be applied to various areas which require surface modifications instantly by forming a polydopamine film similar to the wet methods.