Abstract
Waterborne biodegradable polyurethane–urea (WPUU) elastomer is a revolutionary step in the field of green polymer chemistry. In the present study, emulsifier–free biodegradable WPUU elastomer was synthesized by using lysine as an internal emulsifier as well as a chain extender. WPUU elastomer was used as the stimuli–responsive drug release matrix, loaded by cisplatin as a model anticancer drug. Sustained drug release was studied by changing pH (4.4–7.4), drug release medium, and NCO/OH ratio (3–4). Furthermore, significantly inhibitory effect against Sw–620 cancer lines was observed. Highest cumulative drug release of 71.9% was observed at pH of 7.4 in phosphate buffer saline (PBS) by the system having NCO/OH = 3 for 250 h. The oxidative degradation was evaluated in CoCl2/H2O2 solution. Mechanical properties were tested by using the mechanical testing machine. The synthesized WPUU films exhibited high thermal stability, hardness, tensile strength and hydrophobicity.
Original language | English |
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Pages (from-to) | 57-63 |
Number of pages | 7 |
Journal | Reactive and Functional Polymers |
Volume | 119 |
DOIs | |
Publication status | Published - Oct 2017 |
Externally published | Yes |
Keywords
- Cisplatin anticancer drug
- Lysine
- Polyurethane–urea elastomer
- Stimuli–responsive
- Sustain release
ASJC Scopus subject areas
- General Chemistry
- Environmental Chemistry
- Biochemistry
- General Chemical Engineering
- Polymers and Plastics
- Materials Chemistry