On the Ability of Low Molecular Weight Chitosan Enzymatically Depolymerized to Produce and Stabilize Silver Nanoparticles
Abstract
:1. Introduction
2. Materials and Methods
2.1. Enzymatic Chitosan Depolymerization
2.2. Polymer Characterization
2.3. Silver Nanoparticles Production and Characterization
3. Results
3.1. Polymer Characterization
3.2. Silver Nanoparticle Production
3.3. Nanoparticles Characterization
3.4. Nanoparticles Stability
4. Discussion
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Polymer Characteristics | AgNPs Characteristics | ||||
---|---|---|---|---|---|
Mw (kDa) | FA | Dispersion | Shape | Size (nm) | Ref. |
1240 | 0.13 | Polydisperse | Spherical | 10–150 | [13] |
400 | 0 | Polydisperse | Spherical, Clusters | 20–100 | [14] |
High Mw | 0.25 | Monodisperse | Spherical | 4–8 | [15] |
High Mw | 0.15 | Polydisperse | Spherical, Fractal | 20–200 | [16] |
- | - | Monodisperse | Spherical | 4–5 | [6] |
- | - | Polydisperse | Spherical | 10–80 | [17] |
Sample 1 | FA | Mn (kDa) | Mw (kDa) | PDI |
---|---|---|---|---|
F1Q | 38.54 ± 0.78 | 16,048 | 42,196 | 2.63 |
F2Q | 31.07 ± 0.71 | 6207 | 10,312 | 1.66 |
F3Q | 26.03 ± 0.27 | 5123 | 7020 | 1.37 |
F1L | 38.43 ± 1.48 | 11,768 | 30,933 | 2.63 |
F2L | 42.29 ± 1.63 | 5793 | 8171 | 1.41 |
F3L | 42.67 ± 1.18 | 3578 | 4232 | 1.18 |
Parent | 48.34 ± 1.83 | 128,008 | 538,448 | 4.21 |
Sample 1 | Zeta Potential (mV) | Size (nm) 2 | Size (nm) 3 | <10 nm (%) |
---|---|---|---|---|
F1Q | +24.0 ± 6.5 | 202.5 | 15 | 40 |
F2Q | +12.4 ± 7.3 | 153.8 | - | - |
F3Q | +20.8 ± 4.6 | 169.8 | - | - |
F1L | +23.7 ± 7.6 | 291.6 | 20 | 6 |
F2L | +15.4 ± 7.0 | 131.3 | 7 | 80 |
F3L | +20.6 ± 4.3 | 273.9 | 7 | 90 |
Parent | +40.6 ± 4.6 | 909.1 | 200 | 0 |
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Aranaz, I.; Castro, C.; Heras, A.; Acosta, N. On the Ability of Low Molecular Weight Chitosan Enzymatically Depolymerized to Produce and Stabilize Silver Nanoparticles. Biomimetics 2018, 3, 21. https://doi.org/10.3390/biomimetics3030021
Aranaz I, Castro C, Heras A, Acosta N. On the Ability of Low Molecular Weight Chitosan Enzymatically Depolymerized to Produce and Stabilize Silver Nanoparticles. Biomimetics. 2018; 3(3):21. https://doi.org/10.3390/biomimetics3030021
Chicago/Turabian StyleAranaz, Inmaculada, Carolina Castro, Angeles Heras, and Niuris Acosta. 2018. "On the Ability of Low Molecular Weight Chitosan Enzymatically Depolymerized to Produce and Stabilize Silver Nanoparticles" Biomimetics 3, no. 3: 21. https://doi.org/10.3390/biomimetics3030021