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. 2013 Jan 16;14:27. doi: 10.1186/1471-2474-14-27

Table 1.

Chitosans and chitosan solutions used in this study

Chitosan DDA (%) Mw (kDa) Mn (kDa) PDI Characteristics
High (150K) Powder*
81.8
274.6
241.2
1.1
 
High (150K) Solution**
81.8
124.2
107.4
1.2
pH=3.10 Osm=48mosm
RITC-150K ***
80.6
246.4
176
1.4
0.50% mol/mol RITC/chi
Low (40K) Powder*
81.9
47.7
37.3
1.3
 
Low (40K) Solution**
81.9
31.6
25.3
1.2
pH=1.65 Osm=72mosm
RITC-40K ***
80.6
61.5
46.7
1.3
0.52% mol/mol RITC/chi
Ultralow (10K) Powder*
81.9
22.8
10.3
2.2
 
Ultralow (10K) Solution**
81.9
23.8
12.7
1.9
pH=5.58 Osm=48mosm
RITC-10K *** 80.0 22.4 12.4 1.8 0.58% mol/mol RITC/chi

* Chitosan powder used to make the 20 mg/mL autoclave-sterilized solution; ** Autoclaved 20 mg/mL chitosan solution; *** RITC-chitosan powder used to make the 5 mg/mL filter-sterilized solution; DDA: Degree of deacetylation; Mw: Weight-average molecular weight; Mn: Number-average molecular weight; PDI: Polydispersity index (Mw/Mn); Osm: Osmolality; chi: chitosan.