コラーゲン・フィルムの塩水-水中における収縮-回復挙動
1998 年 54 巻 7 号 p. 386-391
詳細
1998 年 54 巻 7 号 p. 386-391
The contraction and recovery behavior of collagen film were observed in salt water and also water. The main results are as follows.
1. The collagen film showed contraction behavior in various salt water and showed recovery behavior in water.
2. The contraction behavior were shown remarkably under calcium ion and magnesium ion which were divalent ions especially. They were probably due to the volume changes of collagen film like ionic polymer gels. And these behavior were suggested that osmotic pressures of collagen film were different in monovalent and divalent ions.
3. The contraction rate was more than 40% of the value in almost saturated calcium chloride solution.
4. The relationship between contraction ratio and ionic strength of salt solutions was linear. It will be an important clue to explain the relationship between the contraction-relaxation of the gel and ionic strong. And this behavior was expected development ionic strong sensor.
5. The 90% response time of contraction or recovery was less than 1 minute. If the collagen film was used as sensing material to calcium ion, the response time satisfied the standard requirement for practical ion sensors.
6. The collagen film showed the contraction and the relaxation behavior under the loading which was loaded approximately in human almost muscle, and showed big work relatively.
