Fabrication of ordered callose sheets induced by the surface of a cellulose nanotemplate

由纤维素纳米模板表面诱导的有序胼胝质片的制造

• 批准号: 14360101
• 负责人: KONDO Tetsuo
• 金额: $ 10.69万
• 依托单位: KYUSHU UNIVERSITY (2003-2004)Forestry and Forest Products Research Institute (2002)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14360101/
• 关键词: biomacromolecular tracks; protoplast; fiber spinning; callose; order; top-down; カロース繊維; 繊維構造; カルシウムイオン

A unique fiber spinning was found in protoplasts from birch leaves under an acidic culture medium in the presence of high concentration of Ca^<2+>. After expanding from 10 μm over 100 μm in diameter under the culture condition, the protoplast started secreting a gigantic fiber while moving in a spiral way. Real time video analyses elucidated that the orientation, rate and pattern of the motion was directed due to the inverse force of the fiber spinning. Moreover, observation using several microscopic methods accompanied with histochemical staining indicated that the fiber was composed of 400-500 nm wide (1→3)-β-glucan hollow sub-fibrils. This entire phenomenon may be a programed response against the stress imposed. The observations presented in addition to providing an understanding of the unique relationship between directed fiber secretion and the bottom-up fiber fabrication from nano to micro scales, could also offer a new insight designing bio-based fiber materials.

在酸性条件下，高浓度Ca~(2+)和Gt~(2+)存在下，桦树叶片原生质体发生了独特的纤维纺丝。在培养条件下，原生质体直径从10μm扩大到100μm以上后，开始螺旋式运动，分泌出一根巨大的纤维。实时视频分析表明，由于纤维纺丝的反作用力，运动的方向、速度和模式是定向的。此外，结合组织化学染色的几种显微镜方法观察表明，纤维由400~500 nm宽的(1→3)-β-葡聚糖中空亚原纤维组成。这整个现象可能是对施加的压力的程序化反应。这些观察结果不仅提供了对定向纤维分泌和自下而上的纤维制造之间从纳米到微米尺度的独特关系的理解，还可能为设计生物基纤维材料提供新的见解。

项目成果

Formation of nematic ordered cellulose and chitin

• DOI: 10.1023/b:cell.0000046413.91309.55
• 发表时间: 2004-09
• 期刊: Cellulose
• 影响因子: 5.7
• 作者: T. Kondo;Wakako Kasai;R. Brown

Fabrication of honeycomb-patterned cellulose films.

• DOI: 10.1002/mabi.200300054
• 发表时间: 2004-01
• 期刊: Macromolecular bioscience
• 影响因子: 4.6
• 作者: Wakako Kasai;T. Kondo

Hydrogen Bonds in Cellulose and Cellulose Derivatives Chapter.3,69-98

纤维素和纤维素衍生物中的氢键第3,69-98章

• 发表时间: 2004
• 作者: Sato;Y.;Otsuki;K.;Ogawa;S.;Tetsuo Kondo
• 通讯作者: Tetsuo Kondo

Behavior of cellulose production of Acetobacter xylinum in 13C-enriched cultivation media including movements on nematic ordered cellulose templates

• DOI: 10.1016/j.carbpol.2005.02.018
• 发表时间: 2005-06-20
• 期刊: CARBOHYDRATE POLYMERS
• 影响因子: 11.2
• 作者: Hesse, S;Kondo, T
• 通讯作者: Kondo, T

Compression behaviors of LB monolayer films of regioselectively substituted cellulose ethers with long alkyl side chains

长烷基侧链区域选择性取代纤维素醚LB单层膜的压缩行为

• 发表时间: 2005
• 期刊: Langmuir 21
• 作者: Wakako Kasai;Sigenori Kuga;Jun Magoshi;Tetsuo Kondo
• 通讯作者: Tetsuo Kondo