配布資料印刷（Bacteria...
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Transcript of 配布資料印刷（Bacteria...
Figure 4.1
Hydrophilicity Hydrophobicity
Surface properties of cellulose films depend on the tilted angle of anhydroglucose planes when the glucan chains are uniaxially aligned.
1 2
3
4 5 6
Side view
Top view Hydrophobic site
Hydrophobic site
Hydrophilic site
Cellulose molecule (=1,4bDglucan)
2 nm
NOC
0.46 nm
~30º
0.66 nm
0.46 nm
A
A
NOC surface
Hydrophobic site
Figure 4.4
Figure 4.5
(b) WAXD
(a) CP/MAS 13C NMR
5 10 15 20 25 30 355 10 15 20 25 30 35
5 10 15 20 25 30 355 10 15 20 25 30 35
NOC a b
c d
7% NaOH
50% EDA Heating in water
2q / deg 2q / deg
Intensity (arb unit)
（a） NOC
7% NaOH
50% EDA Heating in water
Figure 4.6
（b）
（d） （c）
Figure 4.7
Chitin/Cellulose 75/25
Nematic ordered chitin TEM
AFM
Figure 4.8 Figure 4.8 Figure 4.8 Figure 4.8 Figure 4.8 Figure 4.8
3540º
0.66 nm
0.462 nm
A B
Cross section of NOC
Cross section of pNOC
A B
◇: HPO42
Immersion in PBS
Figure 4.9
NOC orientation Time course
25mm
1 2 3
4 5 6
Typical bacterial movement on NOC
Figure 4.10
Bacterium Fiber
25mm
25mm 25mm
25mm
Figure 4.11
1 2
3 4
A
B
1 mm
1 mm
500 mm
34.1(nm)
348.7(nm)
0.0 (nm)
0.0 (nm)
(a) (b)
Figure 4.12
500 mm
Secreted 3.5nm cellulose microfibrils
Bacterium
Figure 4.13
Random movemenrts
Driving force
~100nm A ribbon
composed of a few hundreds microfibrils
~1mm
Figure 4.14
Figure 4.15
Figure 4.16
