pH-Sensitive amphiphilic block-copolymers for transport and controlled release of oxygen
| Autor: | Khanh B. Vu, Valentin O. Rodionov, Georgios Zapsas, Nikos Hadjichristidis, Sarah Almahdali, Yogesh Patil |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Organic Chemistry Oxygen transport chemistry.chemical_element Bioengineering 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry Controlled release Oxygen 0104 chemical sciences chemistry.chemical_compound Monomer chemistry Chemical engineering Amphiphile Polymer chemistry Copolymer 0210 nano-technology Dissolution |
| Zdroj: | Polymer Chemistry. 8:4322-4326 |
| ISSN: | 1759-9962 1759-9954 |
| Popis: | Saturated fluorocarbons, their derivatives and emulsions are capable of dissolving anomalously high amounts of oxygen and other gases. The mechanistic aspects of this remarkable effect remain to be explored experimentally. Here, the synthesis of a library of amphiphilic fluorous block-copolymers incorporating different fluorinated monomers is described, and the capacity of these copolymers for oxygen transport in water is systematically investigated. The structure of the fluorous monomer employed was found to have a profound effect on both the oxygen-carrying capacity and the gas release kinetics of the polymer emulsions. Furthermore, the release of O2 from the polymer dispersions could be triggered by changing the pH of the solution. This is the first example of a polymer-based system for controlled release of a non-polar, non-covalently entrapped respiratory gas. |
| Databáze: | OpenAIRE |
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