Crossover of Rate-Limiting Process in Plasma Gel Growth by Contact with Source of Gelator
| Autor: | Hiroki Shinoda, Toshiaki Dobashi, Kazuto Yoshiba, Akitsugu Kawabata, Takao Yamamoto, Yoshiharu Toyama, Susumu Tanaka |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Materials science Polymers and Plastics rate-limiting process Crossover Bioengineering gel growth dynamics 030204 cardiovascular system & hematology engineering.material Article Biomaterials lcsh:Chemistry 03 medical and health sciences 0302 clinical medicine Coating lcsh:General. Including alchemy lcsh:Inorganic chemistry lcsh:Science plasma chemistry.chemical_classification Organic Chemistry Polymer Limiting Plasma contact with source of gelator lcsh:QD146-197 Condensed Matter::Soft Condensed Matter 030104 developmental biology chemistry lcsh:QD1-999 Chemical physics Scientific method Time course engineering lcsh:Q Layer (electronics) lcsh:QD1-65 |
| Zdroj: | Gels Volume 7 Issue 1 Gels, Vol 7, Iss 11, p 11 (2021) |
| ISSN: | 2310-2861 |
| DOI: | 10.3390/gels7010011 |
| Popis: | Plasma is regarded as a solution of precursor polymers specifically transformed to gel-forming polymers by a reaction with initiators. We developed a theory for the gel growth dynamics of plasma induced by contact with a source of gelators that are yielded by the initiation. In developing the theory, we combined the Ginzburg–Landau type dynamics with the gelator diffusion dynamics expressed by the moving boundary picture. The theory predicts the crossover of the rate-limiting process in the time course of the thickness of the gel layer X from the energy-limited process expressed by to the diffusion-limited process expressed by , where t is the time elapsed from when the plasma comes into contact with the source of gelators. A demonstration experiment was performed by placing a tissue factor coating plate as the initiator in plasma. Log–log plot of X vs. t showed a crossover as predicted by the theory, and the parameters characterizing plasma were determined. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|