000083964 001__ 83964
000083964 005__ 20210520140801.0
000083964 037__ $$aTESIS-2019-139
000083964 041__ $$aeng
000083964 080__ $$a504; 5
000083964 1001_ $$aOrtega Liébana, Mª Del Carmen
000083964 24500 $$aLight-Emitting Carbon Nanodots. Synthesis and Development of Novel Applications
000083964 260__ $$aZaragoza$$bUniversidad de Zaragoza, Prensas de la Universidad$$c2018
000083964 300__ $$a229
000083964 4900_ $$aTesis de la Universidad de Zaragoza$$v2019-119$$x2254-7606
000083964 500__ $$aPresentado: 05 09 2018
000083964 502__ $$aTesis-Univ. Zaragoza, Ingeniería Química y Tecnologías del Medio Ambiente, 2018$$bZaragoza, Universidad de Zaragoza$$c2018
000083964 506__ $$aall-rights-reserved
000083964 520__ $$aFluorescent Carbon Nanodots, “CNDs”, are a new type of carbon nanomaterials that have emerged recently, and have attracted intense interest as a potential alternative to classical semiconductor Quantum Dots. CNDs possess high biocompatibility, easy and low-cost synthesis, good colloidal stability and appealing optical properties. CNDs also hold a huge potential as novel and versatile luminescent nanomaterials for a wide range of applications such as bioimaging, drug delivery, chemical sensing, photocatalysis, and as sensitizers for photovoltaic solar cells. <br />This Thesis deals first with the development of different strategies to produce non-toxic, inexpensive carbon nanoparticles with good and tunable emission properties spanning an activation window from the ultraviolet (UV) to the near infrared (NIR). On the other hand, the prepared CNDs have been applied in different fields: theranostics, sensing and catalysis. The aims of this PhD Thesis have been: (i) to synthesize fluorescent CNDs from abundant and inexpensive precursors by improving state-of-the-art methods and by the development of novel synthesis strategies; (ii) to understand and optimize the structural and optical properties of the as-synthesized CNDs; and (iii) to use the CNDs as fluorescent Biomarkers and Photodynamic Therapy agents, as luminescent Nanosensors and as photosensitisers in Catalytic applications. <br />After an introductory section, the thesis is structured in three blocks:<br />I. Synthesis of CNDs, evaluation of different synthesis methods: hydrothermal treatment, pyrolysis of organic compounds and flash-thermal pyrolysis of carbon precursors contained in the channels of inorganic mesoporous templates.<br />II. Characterization of CNDs: evaluation of their structural and optical properties with special attention to the role of functional groups generated in the CNDs and the chemical composition of the different precursors to induce an enhanced response in the visible-NIR range.<br />III. Applications of CNDs: evaluation of their role as biomarkers, theranostic agents, and ion sensors, especially in the NIR range. Evaluation as sensitizers/light harvesters able to expand the response of other photocatalysts or to mimic the enzymatic activity of peroxidase.<br />Finally, a conclusion section contains the main conclusions reached in this work.<br />
000083964 520__ $$a<br />
000083964 521__ $$97103$$aPrograma de Doctorado en Ingeniería Química y del Medio ambiente
000083964 6531_ $$aingenieria y tecnologia del medio ambiente
000083964 6531_ $$adiagnostico por imagen
000083964 6531_ $$asintesis quimica
000083964 6531_ $$atecnologia de catalisis
000083964 700__ $$aSantamaria Ramiro, Jesus$$edir.
000083964 700__ $$aHueso Martos, Jose Luis$$edir.
000083964 7102_ $$aUniversidad de Zaragoza$$bIngeniería Química y Tecnologías del Medio Ambiente
000083964 830__ $$9515
000083964 8560_ $$ftdr@unizar.es
000083964 8564_ $$uhttps://zaguan.unizar.es/record/83964/files/TESIS-2019-139.pdf$$zTexto completo (eng)
000083964 909CO $$ooai:zaguan.unizar.es:83964$$pdriver
000083964 909co $$ptesis
000083964 9102_ $$a$$bIngeniería Química y Tecnologías del Medio Ambiente
000083964 980__ $$aTESIS