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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Raghavendra, Gownolla Malegowd Jung, Jeyoung Kim, Dowan Varaprasad, Kokkarachedu Seo, Jongchul |
| Description | Author Affiliation: Raghavendra GM ( Department of Packaging, Yonsei University, Kangwondo 220-710, Republic of Korea.); Jung J ( Department of Packaging, Yonsei University, Kangwondo 220-710, Republic of Korea.); Kim D ( Department of Packaging, Yonsei University, Kangwondo 220-710, Republic of Korea.); Varaprasad K ( Centro de Investigación de Polímeros Avanzados (CIPA), Av. Collao 1202, Direccion General de Investigación, Universidad del Bio-Bio, Concepción, Chile.); Seo J ( Department of Packaging, Yonsei University, Kangwondo 220-710, Republic of Korea. Electronic address: jcseo@yonsei.ac.kr.) |
| Abstract | During ultrasonication of chitosan AgNO3 solution (10mM), silver cubic structures were identified along with other dispersed silver nanoparticles. Temperature influenced the formation of the cubic structures. Formation of the silver cubic structures occurred via initial formation of 'four petal flower-like' structures that underwent transformation to the 'cubic morphology' in the latter stages. Aging of the reaction mixture led to formation of complete dendrites. These dendrites comprised a large quantity of silver nanoparticles. Upon repetition of the experiment with starch instead of chitosan, the identified silver cubic structures were completely absent, indicating that formation of the 'silver cubic structures' is dependent on the polysaccharide used. It is believed that the structural features of chitosan facilitate the formation of 'silver cubic structures' under ultrasonic conditions. The phenomena occurring during the experiments were evaluated via scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS), ultraviolet-visible (UV-vis) spectra, transmission electron microscopy (TEM), and selected area electron diffraction (SAED) analysis. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Journal | Carbohydrate Polymers |
| Volume Number | 152 |
| e-ISSN | 18791344 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-11-05 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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