Polymersome Poration and Rupture Mediated by Plasmonic Nanoparticles in Response to Single-Pulse Irradiation
The self-assembly of amphiphilic diblock copolymers into polymeric vesicles, commonly known as polymersomes, results in a versatile system for a variety of applications including drug delivery and microreactors. In this study, we show that the incorporation of hydrophobic plasmonic nanoparticles wit...
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| Veröffentlicht in: | Polymers 2020-10, Vol.12 (10), p.2381, Article 2381 |
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| creator | DiSalvo, Gina M. Robinson, Abby R. Aly, Mohamed S. Hoglund, Eric R. O'Malley, Sean M. Griepenburg, Julianne C. |
| description | The self-assembly of amphiphilic diblock copolymers into polymeric vesicles, commonly known as polymersomes, results in a versatile system for a variety of applications including drug delivery and microreactors. In this study, we show that the incorporation of hydrophobic plasmonic nanoparticles within the polymersome membrane facilitates light-stimulated release of vesicle encapsulants. This work seeks to achieve tunable, triggered release with non-invasive, spatiotemporal control using single-pulse irradiation. Gold nanoparticles (AuNPs) are incorporated as photosensitizers into the hydrophobic membrane of micron-scale polymersomes and the cargo release profile is controlled by varying the pulse energy and nanoparticle concentration. We have demonstrated the ability to achieve immediate vesicle rupture as well as vesicle poration resulting in temporal cargo diffusion. Additionally, changing the pulse duration, from femtosecond to nanosecond, provides mechanistic insight into the photothermal and photomechanical contributors that govern membrane disruption in this polymer-nanoparticle hybrid system. |
| doi_str_mv | 10.3390/polym12102381 |
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| subjects | Block copolymers Cargo Copolymers Gold Hybrid systems Hydrophobicity Irradiation Lasers Light Localization Membranes Microreactors Microscopy Nanoparticles Physical Sciences Plasmonics Polymer Science Polymers Pulse duration Rupturing Science & Technology Self-assembly |
| title | Polymersome Poration and Rupture Mediated by Plasmonic Nanoparticles in Response to Single-Pulse Irradiation |
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