Synthesis of nanomaterials by high throughput pulsed-laser based systems: Application in biomedicine and material processing
The work developed in this thesis is based on the study of systems for the generation of nanoparticles in liquids by means of pulsed lasers, improving their production and using the generated nanoparticles in applications of great technological relevance such as biomedical imaging or additive manufa...
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| Formato: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | España |
| Recursos: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/668339 |
| Acesso em linha: | http://hdl.handle.net/10803/668339 http://dx.doi.org/10.6035/14104.2019.403031 |
| Access Level: | acceso abierto |
| Palavra-chave: | Nanomaterial synthesis Pulsed lasers Carbon quantum dots Nonlinear effects Fluorescent labels Additive manufacturing Ciències naturals, químiques, físiques i matemàtiques 53 535 |
| Resumo: | The work developed in this thesis is based on the study of systems for the generation of nanoparticles in liquids by means of pulsed lasers, improving their production and using the generated nanoparticles in applications of great technological relevance such as biomedical imaging or additive manufacturing. For the femtosecond laser production improvement, the novel implementation of a spatio temporal focusing system is proposed which, by varying the temporal pulse duration out-of-focus, suppresses nonlinear effects in the liquid medium and the associated energy losses. For the colloidal size reduction by fragmentation, a continuous flow system is proposed that allows to increase the control over the irradiation parameters while ensuring homogeneous irradiation. Finally, the carbon quantum dots generated are used as fluorescent markers and different metal and oxide nanoparticles are synthesized for their later application as bactericides and in the improvement of materials used in additive manufacturing. |
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