scholarly journals High-Concentration Aqueous Dispersions of Nanoscale 2D Materials Using Nonionic, Biocompatible Block Copolymers

Small ◽  
2015 ◽  
Vol 12 (3) ◽  
pp. 294-300 ◽  
Author(s):  
Nikhita D. Mansukhani ◽  
Linda M. Guiney ◽  
Peter J. Kim ◽  
Yichao Zhao ◽  
Diego Alducin ◽  
...  
Keyword(s):  
Block Copolymers ◽  
2D Materials ◽  
High Concentration ◽  
Aqueous Dispersions

High-Concentration Aqueous Dispersions of Graphene Using Nonionic, Biocompatible Block Copolymers

2011 ◽  
Vol 2 (9) ◽  
pp. 1004-1008 ◽  
Author(s):  
Jung-Woo T. Seo ◽  
Alexander A. Green ◽  
Alexander L. Antaris ◽  
Mark C. Hersam
Keyword(s):  
Block Copolymers ◽  
High Concentration ◽  
Aqueous Dispersions

Aqueous Dispersions of Poly(ethylene oxide)-b-poly(γ-methyl-ε-caprolactone) Block Copolymers

2006 ◽  
Vol 39 (13) ◽  
pp. 4286-4288 ◽  
Author(s):  
John A. Zupancich ◽  
Frank S. Bates ◽  
Marc A. Hillmyer
Keyword(s):  
Block Copolymers ◽  
Ethylene Oxide ◽  
Aqueous Dispersions ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Morphological Characterization of Elastin-Mimetic Block Copolymers Utilizing Cryo- and Cryoetch-HRSEM

2003 ◽  
Vol 9 (3) ◽  
pp. 171-182 ◽  
Author(s):  
Elizabeth R. Wright ◽  
Vincent P. Conticello ◽  
Robert P. Apkarian
Keyword(s):  
Block Copolymers ◽  
High Vacuum ◽  
Three Dimensional ◽  
Sample Surface ◽  
Morphological Characterization ◽  
High Concentration ◽  
Micellar Aggregates ◽  
Hydrogel Network ◽  
Resolution Level

Elastin-mimetic block copolymers were produced by genetic engineering. Genetically driven synthesis permitted control of the final physiochemical characteristics of the block copolymers. We designed BB and BAB block copolymers in which the A-block was hydrophilic and the B-block was hydrophobic. By designing the copolymers in this manner, it was proposed that they would self-assemble into micellar aggregates that, at high concentration, would form thermoreversible hydrogels. To analyze the three-dimensional fine surface morphology of the copolymers, to the resolution level of a few nanometers, we employed cryo-HRSEM. This method provided vast expanses of the specimen in its frozen hydrated state for survey. In our initial cryo-HRSEM studies, we observed the protein filaments and micelles surrounded by lakes of vitreous ice. Upon examination at low and intermediate magnifications, there was an extensive honeycomb-like filamentous network. To delineate the fine morphology of the hydrogel network at high magnification and to greater depths, we cryoetched away unbound water from the sample surface, in high vacuum, prior to chromium deposition. By using this technique, we were able to visualize for characterization purposes the fine fibril networks formed from the micellar aggregates over the surface of the hydrogel.

High-Concentration Aqueous Dispersions of MoS2

2013 ◽  
Vol 23 (28) ◽  
pp. 3577-3583 ◽  
Author(s):  
Yagang Yao ◽  
Lorenzo Tolentino ◽  
Zhongzheng Yang ◽  
Xiaojuan Song ◽  
Wen Zhang ◽  
...  
Keyword(s):  
High Concentration ◽  
Aqueous Dispersions

High-concentration aqueous dispersions of graphene produced by exfoliation of graphite using cellulose nanocrystals

Carbon ◽  
2014 ◽  
Vol 70 ◽  
pp. 157-163 ◽  
Author(s):  
Pedro M. Carrasco ◽  
Sarah Montes ◽  
Ignacio García ◽  
Maryam Borghei ◽  
Hua Jiang ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
High Concentration ◽  
Aqueous Dispersions

Aggregation and Self-Assembly of Amphiphilic Block Copolymers in Aqueous Dispersions of Carbon Nanotubes

Langmuir ◽  
2008 ◽  
Vol 24 (9) ◽  
pp. 4625-4632 ◽  
Author(s):  
Rina Shvartzman-Cohen ◽  
Marc Florent ◽  
Daniella Goldfarb ◽  
Igal Szleifer ◽  
Rachel Yerushalmi-Rozen
Keyword(s):  
Carbon Nanotubes ◽  
Block Copolymers ◽  
Self Assembly ◽  
Amphiphilic Block Copolymers ◽  
Aqueous Dispersions
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