Academic literature on the topic 'Functional inorganic nanoparticles'

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Journal articles on the topic "Functional inorganic nanoparticles"

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Reijnders, L. "Safe Functional Modified CuO Nanoparticles?" Applied Sciences 13, no. 6 (2023): 3425. http://dx.doi.org/10.3390/app13063425.

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CuO nanoparticles produced by methods from inorganic chemistry and physics are applied as biocides and applications thereof in solar stills, solar collectors, catalysis, sensing and diesel fuels have been proposed. Such CuO nanoparticles are hazardous due to the release of Cu ions and the induced generation of reactive oxygen species after uptake by organisms. Nanoparticle hazard may be reduced by surface modification (coating or capping) and doping which reduces the release of Cu ions and the generation of reactive oxygen species. None of the published safe-by-design modifications of CuO nanoparticles that will be discussed here have been proven safe (no risk). By targeting the release of Cu ions and the generation of reactive oxygen species by CuO nanoparticles, safe(r)-by-design studies target properties that underly the biocidal functionality of CuO nanoparticles. Other functionalities of CuO nanoparticles may also be impacted. There is a case for complementing safe(r)-by-design studies by investigating the impact of the modifications studied on CuO nanoparticle functionality.
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Deepa, K., M. Leo Edward, A. Shalini, and V. Jaisankar. "Preparation of Inorganic Composites of Chitosan/magnesium Oxide Nanoparticle for Antibacterial Activity." Journal of ISAS 2, no. 2 (2023): 21–30. http://dx.doi.org/10.59143/isas.jisas.2.2.kcna4459.

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Natural polymer based nanocomposites have received attention in research due their biocompatible nature and their versatile application in medical field. In the current investigation, we report the synthesize of chitosan /magnesium oxide nanoparticle (CS/MgO) composite material. The prepared sample was characterized by analytical methods such as FTIR, XRD and HRSEM.The antibacterial activity of the CS/MgO composite was evaluated. FT-IR spectral results showed the CS/MgO composite has distinctive functional groups. HR SEM images revealed that the formation of well dispersed MgO nanoparticles in CS and it is observed that the MgO nanoparticles are embedded between the functional moieties present in the chitosan which shows the good interaction between chitosan and MgO nanoparticles. The antibacterial activity of the composite was evaluated against Staphylococcus aureus and Escherichia coli. It is observed that the CS/MgO composite material showed comparatively higher inhibition against E. coli than S.aureus
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Niemeyer, Christof M. "Functional Hybrid Devices of Proteins and Inorganic Nanoparticles." Angewandte Chemie International Edition 42, no. 47 (2003): 5796–800. http://dx.doi.org/10.1002/anie.200301703.

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Roig-Sanchez, Soledad, Erik Jungstedt, Irene Anton-Sales, et al. "Nanocellulose films with multiple functional nanoparticles in confined spatial distribution." Nanoscale Horizons 4, no. 3 (2019): 634–41. http://dx.doi.org/10.1039/c8nh00310f.

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Zentel, Rudolf. "Polymer Coated Semiconducting Nanoparticles for Hybrid Materials." Inorganics 8, no. 3 (2020): 20. http://dx.doi.org/10.3390/inorganics8030020.

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This paper reviews synthetic concepts for the functionalization of various inorganic nanoparticles with a shell consisting of organic polymers and possible applications of the resulting hybrid materials. A polymer coating can make inorganic nanoparticles soluble in many solvents as individual particles and not only do low molar mass solvents become suitable, but also polymers as a solid matrix. In the case of shape anisotropic particles (e.g., rods) a spontaneous self-organization (parallel orientation) of the nanoparticles can be achieved, because of the formation of lyotropic liquid crystalline phases. They offer the possibility to orient the shape of anisotropic nanoparticles macroscopically in external electric fields. At least, such hybrid materials allow semiconducting inorganic nanoparticles to be dispersed in functional polymer matrices, like films of semiconducting polymers. Thereby, the inorganic nanoparticles can be electrically connected and addressed by the polymer matrix. This allows LEDs to be prepared with highly fluorescent inorganic nanoparticles (quantum dots) as chromophores. Recent works have aimed to further improve these fascinating light emitting materials.
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Kong, Linlin, Xinyi Jin, Dapeng Hu, Leyun Feng, Dong Chen, and Hanying Li. "Functional delivery vehicle of organic nanoparticles in inorganic crystals." Chinese Chemical Letters 30, no. 12 (2019): 2351–54. http://dx.doi.org/10.1016/j.cclet.2019.08.007.

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Lee, Jun Hyup. "Design of Highly Adhesive and Water-Resistant UV/Heat Dual-Curable Epoxy–Acrylate Composite for Narrow Bezel Display Based on Reactive Organic–Inorganic Hybrid Nanoparticles." Polymers 12, no. 10 (2020): 2178. http://dx.doi.org/10.3390/polym12102178.

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To attain the narrow bezel characteristic of information displays, functional sealing composite materials should possess high adhesion strength and water barrier performance due to their narrow line widths. In this study, highly adhesive UV/heat dual-curable epoxy–acrylate composites with outstanding water-resistant performance have been proposed using photoreactive organic–inorganic hybrid nanoparticles that can react with an acrylate resin, creating a crosslinked nanoparticle network within the sealing composite. The hybrid nanoparticles consisted of reactive methacrylate groups as a shell and an inorganic core of silica or aluminum oxide, and were facilely synthesized through sol–gel reaction and chemisorption process. The curing characteristics, adhesive strength, and moisture permeability of the proposed sealing composite have been compared to those of a conventional epoxy–acrylate composite containing inorganic silica particles. The composites including hybrid nanoparticles exhibited high UV and heat curing ratios owing to the numerous methacrylate groups on the nanoparticle surface and high compatibility with organic resins. Moreover, the proposed sealing composite showed high adhesion strength and extremely low water permeability due to the creation of densely photocrosslinked network with matrix resins. In addition, the sealing composite exhibited excellent narrow dispensing width as well as relatively low viscosity, suggesting the potential application in narrow bezel display.
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Dash, Kshirod Kumar, Pinky Deka, Sneh Punia Bangar, Vandana Chaudhary, Monica Trif, and Alexandru Rusu. "Applications of Inorganic Nanoparticles in Food Packaging: A Comprehensive Review." Polymers 14, no. 3 (2022): 521. http://dx.doi.org/10.3390/polym14030521.

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Nanoparticles (NPs) have acquired significance in technological breakthroughs due to their unique properties, such as size, shape, chemical composition, physiochemical stability, crystal structure, and larger surface area. There is a huge demand for packaging materials that can keep food fresher for extended periods of time. The incorporation of nanoscale fillers in the polymer matrix would assists in the alleviation of packaging material challenges while also improving functional qualities. Increased barrier properties, thermal properties like melting point and glass transition temperatures, and changed functionalities like surface wettability and hydrophobicity are all features of these polymers containing nanocomposites. Inorganic nanoparticles also have the potential to reduce the growth of bacteria within the packaging. By incorporating nano-sized components into biopolymer-based packaging materials, waste material generated during the packaging process may be reduced. The different inorganic nanoparticles such as titanium oxide, zinc oxide, copper oxide, silver, and gold are the most preferred inorganic nanoparticles used in food packaging. Food systems can benefit from using these packaging materials and improve physicochemical and functional properties. The compatibility of inorganic nanoparticles and their various forms with different polymers make them excellent components for package fortification. This review article describes the various aspects of developing and applying inorganic nanoparticles in food packaging. This study provides diverse uses of metals and metal oxides nanoparticles in food packaging films for the development of improved packaging films that can extend the shelf life of food products. These packaging solutions containing nanoparticles would effectively preserve, protect, and maintain the quality of the food material.
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Bellotto, Ottavia, Maria C. Cringoli, Siglinda Perathoner, Paolo Fornasiero, and Silvia Marchesan. "Peptide Gelators to Template Inorganic Nanoparticle Formation." Gels 7, no. 1 (2021): 14. http://dx.doi.org/10.3390/gels7010014.

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The use of peptides to template inorganic nanoparticle formation has attracted great interest as a green route to advance structures with innovative physicochemical properties for a variety of applications that range from biomedicine and sensing, to catalysis. In particular, short-peptide gelators offer the advantage of providing dynamic supramolecular environments for the templating effect on the formation of inorganic nanoparticles directly in the resulting gels, and ideally without using further reductants or chemical reagents. This mini-review describes the recent progress in the field to outline future research directions towards dynamic functional materials that exploit the synergy between supramolecular chemistry, nanoscience, and the interface between organic and inorganic components for advanced performance.
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Arai, Kosuke, Satoshi Murata, Taifeng Wang, et al. "Adsorption of Biomineralization Protein Mms6 on Magnetite (Fe3O4) Nanoparticles." International Journal of Molecular Sciences 23, no. 10 (2022): 5554. http://dx.doi.org/10.3390/ijms23105554.

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Biomineralization is an elaborate process that controls the deposition of inorganic materials in living organisms with the aid of associated proteins. Magnetotactic bacteria mineralize magnetite (Fe3O4) nanoparticles with finely tuned morphologies in their cells. Mms6, a magnetosome membrane specific (Mms) protein isolated from the surfaces of bacterial magnetite nanoparticles, plays an important role in regulating the magnetite crystal morphology. Although the binding ability of Mms6 to magnetite nanoparticles has been speculated, the interactions between Mms6 and magnetite crystals have not been elucidated thus far. Here, we show a direct adsorption ability of Mms6 on magnetite nanoparticles in vitro. An adsorption isotherm indicates that Mms6 has a high adsorption affinity (Kd = 9.52 µM) to magnetite nanoparticles. In addition, Mms6 also demonstrated adsorption on other inorganic nanoparticles such as titanium oxide, zinc oxide, and hydroxyapatite. Therefore, Mms6 can potentially be utilized for the bioconjugation of functional proteins to inorganic material surfaces to modulate inorganic nanoparticles for biomedical and medicinal applications.
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Dissertations / Theses on the topic "Functional inorganic nanoparticles"

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Waltz, Florian [Verfasser]. "Inorganic nanoparticles for functional coating applications / Florian Waltz." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2012. http://d-nb.info/1030087733/34.

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Xu, Youyong. "Functional cylindrical polymer brushes and their hybrids with inorganic nanoparticles." kostenfrei, 2008. http://opus.ub.uni-bayreuth.de/volltexte/2009/497/.

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Okada, Hiroshi. "Development of Functional Materials Based on Organic-Inorganic Hybrids." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188609.

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Borteh, Hassan. "Micropatterning of Functional Inorganic Materials with Benign Chemistry Using Peptide Catalysts." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276883108.

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Benin, Bogdan Markovich. "Synthesis and Characterization of Novel Gold-Based Nanoparticulate Chemotherapeutic Agents." Kent State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=kent1461088605.

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ORRU', FEDERICA. "Design of functional colloidal magnetic nanoparticles for biomedical applications." Doctoral thesis, Università degli Studi di Cagliari, 2013. http://hdl.handle.net/11584/266208.

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Nanostructured materials have been the focus of scientific interest in recent years, because of the peculiar properties displayed by matter in nano-size form. The interest has been growing steeply since possible applications in biomedical fields have shown to be realistic. The interaction of magnetic nanoparticles with applied magnetic field gradients makes these particles attractive for their potential applications in biomedical imaging, diagnostic, and therapy. In this context, a great advantage are the superparamagnetic properties that can be exhibited by the nanoparticles. They behave as paramagnetic centres with high magnetic moment at room temperature, as it arises from the coupling of many atomic spins. After eliminating the external magnetic field, the particles no longer show magnetic interaction, thus reducing the possibility of particle aggregation; this feature is especially important for their applications. Biomedical use of magnetic nanoparticles imposes their uniform dispersion and stability in the biological fluids; moreover their size range should easily permit cell internalization through pinocytosis or endocytosis. Therefore, surface modification, via coating or encapsulation, is widely employed to improve nanoparticles properties and for immobilization of functional molecules. Magnetic nanoparticles have garnered widespread attention in recent years to develop and understand synthetic means to control their size, magnetic behaviour, and chemical reactivity. Simultaneously tuning surface chemistry and physical properties enable preparation of functional magnetic nanoparticles. Recent advances in synthesis have allowed to easily prepare a wide range of magnetic nanoparticles though aqueous or non aqueous approaches. It has been widely shown that the non-aqueous routes are more efficient in producing stable colloidal nanoparticles with narrow size distribution, high crystallinity, tunable size and shape. However, this approach typically produces hydrophobic nanoparticles limiting their applications in biological and medical fields. Thus, the transformation of these hydrophobic nanoparticles into hydrophilic is a crucial step toward their widespread use. The aim of the present PhD research project is to give a contribution to implement synthetic approaches to develop novel colloidal magnetic nano-architectures with applications in biomedical field. In particular, the research moves along two principal themes. From one side it has been investigated the possibility to tune magnetic nanoparticles size and properties through appropriate synthetic methodologies. From the other side, since the selected synthetic approach provides hydrophobic nanoparticles, particular attention has been devoted to the surface modification with organic and inorganic coatings in order to convert them into water dispersible systems. To this end, a multi-technique approach is used. A first structural analysis is performed by wide-angle X-ray Diffraction to obtain information about the crystalline phases and the crystallite size (coherent domain). Direct images of the samples, obtained by Transmission Electron Microscopy observations allowed an evaluation of the particle sizes, their distribution and the homogeneity of the particle dispersions. In order to study the magnetic-nanoparticles/coating interface, studies with FT-IR spectroscopy have been performed on hydrophobic nanoparticles and on all the systems in which the surface modification has been applied. To investigate the textural properties of the silica based composites nitrogen physisorption measurements have been performed in combination with low-angle X-ray diffraction to evidence the ordered porosity. Magnetic measurements have been acquired in order to understand how the different chemical composition, size and coatings can affect the magnetic properties of nanoparticles. All the measurements have been carried out at the Department of Chemical and Geological Sciences at the University of Cagliari.
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Mutelet, Brice. "Synthèses de nanoparticules hybrides : de nouveaux agents pour le diagnostic et la thérapie combinés." Thesis, Lyon, INSA, 2011. http://www.theses.fr/2011ISAL0087.

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La miniaturisation des systèmes a montré qu’à l’échelle nanométrique, les matériaux possèdent des propriétés différentes de leur état massif. Aujourd'hui, la synthèse d’objets de taille nanométrique est en parfaite adéquation avec les systèmes biologiques pour des applications médicales. La possibilité pour les chimistes de combiner dans un même « nano-objet » différent types de matériaux aux propriétés complémentaires a ouvert la voie au développement de nanoparticules multifonctionnelles pour des applications biologiques. C’est dans ce domaine, en utilisant les propriétés remarquables des terres rares que le LPCML de l’Université de Lyon en collaboration avec le laboratoire MATEIS de l’INSA de Lyon a pu mettre au point des nanoparticules hybrides multifonctionnelles ayant une structure cœur/coquille en combinant un cœur inorganique d’oxyde de lanthanide protégé par une coquille organique composée de polysiloxanes. L’utilisation d’un cœur d’oxyde de terre rare permet de disposer à la fois d’outils de détection (optique avec Eu et Tb, IRM avec Gd, Dy et Ho ou en scintigraphie avec Ho) et d’agent thérapeutique avec Gd et Ho. Après avoir longuement étudié les propriétés comme agent de contraste et de thérapie par capture neutronique du gadolinium, nous nous sommes intéressés aux propriétés atomiques de l’holmium qui après irradiation neutronique émet des rayonnements  et - potentiellement intéressants pour un traitement en curiethérapie. Le travail de thèse présenté ici rend compte de l’étude réalisée d’une part sur les propriétés optiques et magnétiques de ces nanoparticules hybrides à base d’oxyde de terre rare et d’autre part sur les possibilités d’applications médicales avec l’utilisation d’holmium<br>The everlasting search for the miniaturization of the processes has shown that at the nanometer scale materials exhibit different properties than from the bulk. Today, the synthesis of nano-sized objects is in perfect harmony with biological systems for medical applications. The opportunity for chemists to combine into a single nano-oject different kind of materials with complementary properties has opened the way for the development of multifunctional nanoparticles for biological applications. In this area, using the remarkable properties of rare earths, LPCML laboratory from Lyon University in collaboration with MATEIS laboratory from INSA-Lyon was able to develop multifunctional hybrid nanoparticles with a core/shell structure by combining an inorganic rare earth oxide core coated by a polysiloxane shell. The using of a lanthanide in the core enables the combination of detection tools (optical with Eu and Tb, MRI with Gd, Dy and Ho or scintigraphy with Ho) and therapeutic agents with Gd and Ho. After having studied the properties of gadolinium as a contrast and neutron capture therapeutic agent, we were interested in atomic properties of holmium after neutron irradiation which emits  and - radiations, potentially interesting for scintigraphic imaging and brachytherapy. The thesis presented here reports studies on the one hand on optical and magnetic properties of these hybrid nanoparticles and on the other hand the possibilities of medical applications by using holmium-based particles
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Candel, Busquets Inmaculada. "Functional silica materials for controlled release, sensing and elimination of target molecules." Doctoral thesis, Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/39101.

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La presente tesis doctoral titulada “Materiales de sílice funcionales para la liberación controlada, detección y eliminación de moléculas de interés” se centra en el diseño y desarrollo de materiales híbridos orgánico-inorgánicos mediante la aplicación de los conceptos de Química Supramolecular. Durante el desarrollo de la presente tesis doctoral se han preparado y caracterizado diferentes materiales de base silícea para distintas aplicaciones. La primera parte de la tesis se centra en el desarrollo de materiales de base silícea capaces de variar su comportamiento fluorescente en función de la presencia o ausencia de un cierto analito en el medio. Estos materiales emplean como soporte nanopartículas de sílice que se funcionalizan superficialmente con dos unidades diferentes, una coordinante y una indicadora (un fluoróforo). La interacción del analito de interés (en nuestro caso aniones) con la unidad coordinante modificará las propiedades emisivas del fluoróforo. Así, se han preparado dos materiales en los cuales el grupo fluorescente es rodamina mientras que el grupo coordinante es un imidazolato o una sal de guanidinio respectivamente. Una vez caracterizados ambos materiales se estudió su comportamiento frente a diferentes especies aniónicas a diferentes concentraciones resultando selectivos a la presencia de benzoato (el material funcionalizado con imidazolatos), dihidrógeno fosfato e hidrógeno sulfato (el material funcionalizado con sales de guanidinio). El tercer capítulo de la tesis se centra en la aplicación de materiales híbridos orgánico-inorgánicos para la detección y eliminación de especies altamente tóxicas como son los agentes neurotóxicos. Estos son compuestos organofosforados capaces de causar graves lesiones en el sistema nervioso central. En una primera aproximación se emplea el concepto de puerta molecular para la detección de agentes neurotóxicos. Para ello, se utiliza como soporte inorgánico un material mesoporoso de sílice (MCM-41) cuyos poros se cargan con un colorante que actúa de indicador mientras que la superficie externa del mismo se funcionaliza con una molécula capaz de reaccionar con dichos agentes neurotóxicos. Dicha molécula es capaz de interaccionar entre sí (mediante enlaces de hidrógeno) formando una red que mantiene bloqueada la salida de los poros. En presencia de DCP (dietilclorofosfato, un simulante de agente neurotóxico), y después de que este reaccione con dicha molécula, se produce una reorganización espacial que permite la liberación del colorante. De este modo, la presencia de los agentes neurotóxicos está señalizada mediante un cambio de color. En una segunda aproximación se aborda el uso de soportes inorgánicos de tipo MCM-41 como materiales para la eliminación de agentes neurotóxicos. Para ello se modificaron químicamente las superficies de estos materiales silíceos mediante tratamiento con distintas bases. Como consecuencia de este tratamiento básico los silanoles de la superficie se desprotonan dando lugar a los correspondientes silanolatos (nucleófilos fuertes). Estos silanolatos son capaces de reaccionar con los agentes neurotóxicos descomponiéndolos y favoreciendo su eliminación de un medio contaminado. Por último, se estudia la aplicación de materiales híbridos orgánico-inorgánicos funcionalizados con puertas moleculares en aplicaciones de liberación controlada, concretamente, en liberación controlada intracelular de fármacos de interés. El material híbrido consta de un soporte de sílice mesoporosa cuyos poros se cargan con un compuesto citotóxico (camptotecina) y su superficie externa se funcionaliza con una gluconamida. La presencia de una monocapa densa de gluconamidas por el exterior del material inhibe la liberación del compuesto citotóxico. Al añadir enzimas con capacidad para hidrolizar enlaces amida (amidasa y pronasa) se produce la liberación de la camptotecina. El correcto funcionamiento del material se comprobó in vitro e in vivo (en células HeLa).<br>Candel Busquets, I. (2014). Functional silica materials for controlled release, sensing and elimination of target molecules [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/39101<br>TESIS
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Salinas, Soler Yolanda. "Functional hybrid materials for the optical recognition of nitroaromatic explosives involving supramolecular interactions." Doctoral thesis, Editorial Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/31663.

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La presente tesis doctoral titulada ¿Materiales funcionales híbridos para el reconocimiento óptico de explosivos nitroaromáticos mediante interacciones supramoleculares¿ se basa en la combinación de principios de Química Supramolecular y de Ciencia de los Materiales para el diseño y desarrollo de nuevos materiales híbridos orgánico-inorgánicos funcionales capaces de detectar explosivos nitroaromáticos en disolución. En primer lugar se realizó una búsqueda bibliográfica exhaustiva de todos los sensores ópticos (cromogénicos y fluorogénicos) descritos en la bibliografía y que abarca el periodo desde 1947 hasta 2011. Los resultados de la búsqueda están reflejados en el capítulo 2 de esta tesis. El primer material híbrido preparado está basado en la aplicación de la aproximación de los canales iónicos y, para ello, emplea nanopartículas de sílice funcionalizadas con unidades reactivas y unidades coordinantes (ver capítulo 3). Este soporte inorgánico se funcionaliza con tioles (unidad reactiva) y una poliamina lineal (unidad coordinante) y se estudia el transporte de una escuaridina (colorante) a la superficie de la nanopartícula en presencia de diferentes explosivos. En ausencia de explosivos, la escuaridina (color azul y fluorescencia intensa) es capaz de reaccionar con los tioles anclados en la superficie decolorando la disolución. En presencia de explosivos nitroaromáticos se produce una inhibición de la reacción escuaridinatiol y la suspensión permanece azul. Esta inhibición es debida a la formación de complejos de transferencia de carga entre las poliaminas y los explosivos nitroaromáticos. En la segunda parte de esta tesis doctoral se han preparado materiales híbridos con cavidades biomiméticas basados en el empleo de MCM-41 como soporte inorgánico mesoporoso (ver capítulo 4). Para ello se ha procedido al anclaje de tres fluoróforos (pireno, dansilo y fluoresceína) en el interior de los poros del soporte inorgánico y, posteriormente, se ha hidrofobado el interior de material mediante la reacción de los silanoles superficiales con 1,1,1,3,3,3-hexametildisilazano. Mediante este procedimiento se consiguen cavidades hidrófobas que tienen en su interior los fluoróforos. Estos materiales son fluorescentes cuando se suspenden en acetonitrilo mientras que cuando se añaden explosivos nitroaromáticos a estas suspensiones se observa una desactivación de la emisión muy marcada. Esta desactivación de la emisión es debida a la inclusión de los explosivos nitroaromáticos en la cavidad biomimética y a la interacción de estas moléculas (mediante interacciones de ¿- stacking) con el fluoróforo. Una característica importante de estos materiales híbridos sensores es que pueden ser reutilizados después de la extracción del explosivo de las cavidades hidrofóbicas. En la última parte de esta tesis doctoral se han desarrollado materiales híbridos orgánicoinorgánicos funcionalizados con ¿puertas moleculares¿ que han sido empleados también para detectar explosivos nitroaromáticos (ver capítulo 5). Para la preparación de estos materiales también se ha empleado MCM-41 como soporte inorgánico. En primer lugar, los poros del soporte inorgánico se cargan con un colorante/fluoróforo seleccionado. En una segunda etapa, la superficie externa del material cargado se ha funcionalizado con ciertas moléculas con carácter electrón dador (pireno y ciertos derivados del tetratiafulvaleno). Estas moléculas ricas en electrones forman una monocapa muy densa (debida a las interacciones dipolo-dipolo entre estas especies) alrededor de los poros que inhibe la liberación del colorante. En presencia de explosivos nitroaromáticos se produce la ruptura de la monocapa, debido a interacciones de ¿-stacking con las moléculas ricas en electrones, con la consecuencia de una liberación del colorante atrapado en el interior de los poros observándose una respuesta cromo-fluorogénica<br>Salinas Soler, Y. (2013). Functional hybrid materials for the optical recognition of nitroaromatic explosives involving supramolecular interactions [Tesis doctoral]. Editorial Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/31663<br>Alfresco<br>Premiado
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Xu, Youyong [Verfasser]. "Functional cylindrical polymer brushes and their hybrids with inorganic nanoparticles / vorgelegt von Youyong Xu." 2009. http://d-nb.info/992321662/34.

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Books on the topic "Functional inorganic nanoparticles"

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Solution Synthesis of Inorganic Functional Materials - Films, Nanoparticles, and Nanocomposites: Volume 1547. Cambridge University Press, 2013.

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Book chapters on the topic "Functional inorganic nanoparticles"

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Kokotidou, Chrysoula, Sara H. Mejías, and Evangelos Georgilis. "Protein- and Peptide-Inorganic Nanoparticles as Theranostic Vehicles." In Functional Materials in Biomedical Applications. Jenny Stanford Publishing, 2023. http://dx.doi.org/10.1201/9781003411468-5.

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Alonso, Yanela N., Ana L. Grafia, Luciana A. Castillo, and Silvia E. Barbosa. "Active Packaging Films Based on Polyolefins Modified by Organic and Inorganic Nanoparticles." In Reactive and Functional Polymers Volume Three. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50457-1_2.

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Sayed, Mhejabeen, Sharmistha Dutta Choudhury, and Haridas Pal. "Chapter 5. Hybrid Supramolecular Assemblies of Cucurbit[n]uril-supported Metal and Other Inorganic Nanoparticles." In Cucurbituril-based Functional Materials. Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788015950-00095.

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Ponomarova, Ludmila, Yuliya Dzyazko, Yurii Volfkovich, Valentin Sosenkin, and Sergey Scherbakov. "Effect of Incorporated Inorganic Nanoparticles on Porous Structure and Functional Properties of Strongly and Weakly Acidic Ion Exchangers." In Springer Proceedings in Physics. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92567-7_4.

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Kozawa, Takahiro, and Makio Naito. "Dry Nanoparticle Processes for Functional Materials Integration." In Novel Structured Metallic and Inorganic Materials. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7611-5_17.

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García, Olga, and Marta Liras. "Photoactive nanoparticles capped with functional polymers." In Photoactive Inorganic Nanoparticles. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-814531-9.00007-5.

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Ouyang, Weiyi, Alain R. Puente Santiago, Kenneth Cerdán-Gómez, and Rafael Luque. "Nanoparticles within functional frameworks and their applications in photo(electro)catalysis." In Photoactive Inorganic Nanoparticles. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-814531-9.00005-1.

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Palencia, Manuel, Tulio A. Lerma, Viviana Garcés, Mayra A. Mora, Jina M. Martínez, and Sixta L. Palencia. "Hydrogels for separation and delivery of antibacterial inorganic nanoparticles." In Eco-friendly Functional Polymers. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-821842-6.00025-7.

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"SURFACE MODIFICATION OF INORGANIC NANOPARTICLES BY ORGANIC FUNCTIONAL GROUPS." In Nanoparticle Technology Handbook. Elsevier, 2008. http://dx.doi.org/10.1016/b978-044453122-3.50051-9.

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Takami, Seiichi. "Surface modification of inorganic nanoparticles by organic functional groups." In Nanoparticle Technology Handbook. Elsevier, 2012. http://dx.doi.org/10.1016/b978-0-444-56336-1.50054-0.

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Conference papers on the topic "Functional inorganic nanoparticles"

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Karyasa, I. Wayan, and Enike Dwi Kusumawati. "Strategy for Developing Medical Inorganic-Organic Hybrid Biomaterials through the Improvement of Sericulture as a Producer of Renewable Active Biological Raw Materials." In 8th International Conference on Advanced Material for Better Future. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-yox7jx.

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The need for biomaterials is increasing as more and more health problems become more and more complex. Progress in the field of medical biomaterials is also accelerating, but the provision of renewable biomaterials continues to be of concern to the world as awareness of sustainable development in the field of chemistry and health. Various strategies in the development of medical biomaterials were studied through a narrative review of the literature. One of them is the strategy of developing inorganic-organic hybrid medical biomaterials through the cultivation of silkworms as producers of renewable biomaterial raw materials. Sericulture can produce active biomaterials such as sericin, fibroin and other renewable materials and those biomaterials can be combined with inorganic nanoparticles to produce medical functional biomaterials on an ongoing basis. The addition of antibacterial bioactive materials such as natural dyestuffs and inorganic nanoparticles of anti-bacterial agents can increase the productivity and quality of antimicrobial biomaterials produced by the cultivation of silkworms.
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Aljeaban, Norah, Bader Alharbi, Ahmed Busaleh, and Tawfik A. Saleh. "Synthesis of Silane-Modified Nanoparticles-Based Corrosion Inhibitor for Acidic Corrosion." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18882.

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Abstract Corrosion can cause serious metal deterioration and equipment failure in the oil and gas industry and poses a safety hazard. It occurs in presence of an aqueous solution and acidic media when conditions permit. The application of metal protection is one of the most industrially economical methods of controlling metallic corrosion in an acidic environment. Herein, a silane-modified nanoparticle corrosion inhibitor has been successfully synthesized and characterized by different analysis methods. Silica nanoparticles were fabricated by organosilane composite with carboxylic groups(-COOH) as a terminal group to yield a long polymeric chain attached to the surface of the silica nanoparticle, which can work as an effective corrosion inhibitor. Fourier Transform Infrared Spectroscopy (FTIR) was used to confirm the functional groups present in the prepared inhibitor. Besides, the material surface morphology and adsorbed layer were characterized by scanning electron microscopy (SEM). The anticorrosive behavior of the prepared materials was examined by gravimetric weight loss in different media (organic and inorganic acidic and concentrated salty media), i.e., 15% HCl, 15% Acetic acid, and 15% MSA. Experimental results revealed that the obtained polymeric inhibitor can be adsorbed on the metal surface via electrostatic attraction/physical mechanism. Furthermore, the adsorbed film on the steel surface could act as a protective layer to protect the stainless-steel surface from corrosion parameters. Thus, increasing the corrosion inhibition efficiency.
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Zach, Jiri, Petra Zachova, Jitka Peterkova, Vitezslav Novak, and Jindrich Havelka. "STUDY OF REACTION TO FIRE IN HYBRID_BASED CORE INSULATORS INTENDED FOR THE OF VACUUM INSULATION PANELS." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s26.45.

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The core insulators of vacuum insulation panels are mostly made from inorganic raw materials with a high SiO2 content, either in the form of nanoparticles or microfibers, while the proportion of organics is usually up to 3 %. The contribution is devoted to the study of reaction to fire in hybrid insulation materials made from a combination of nano SiO2-based particulate raw materials and organic-based fibrous raw materials, where the total proportion of organics is significantly greater than 3 %. Considering that it is a mixture of inorganic nanoparticles and organic microfibers with a total higher bulk density, the resulting behavior of these insulators in the field of reaction to fire is different from classic insulators (both fibrous and particulate). In the case of hybrid core insulators, which are the subject of the published study, the organic fibers are obtained by recycling old paper (municipal waste) and substitute part of the nano SiO2 in the core insulator. In this way, it is possible to significantly improve the environmental parameters of vacuum insulation panels with minimal deterioration of functional properties and durability. The paper describes how the substitution of SiO2 with organic microfibers will affect the key fire properties, especially the reaction to fire.
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Du, H., S. H. Ng, K. T. Neo, et al. "Inorganic-Polymer Nanocomposites for Optical Applications." In ASME 2006 Multifunctional Nanocomposites International Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/mn2006-17088.

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The combination of organic and inorganic materials forms unique composites with properties that neither of the two components provides. Such functional materials are considered innovative advanced materials that enable applications in many fields, including optics, electronics, separation membranes, protective coatings, catalysis, sensors, biotechnology, and others. The challenge of incorporating inorganic particles into an organic matrix still remains today, especially for nanoparticles, due to the difficulties in their dispersion, de-agglomeration and surface modification. NanoGram has pioneered a nanomaterials synthesis technology based on laser pyrolysis process to produce a wide range of crystalline nanomaterials including complex metal oxides, nitrides and sulfides and with precisely controlled compositions, crystal structure, particle size and size distributions. In this paper we will present some examples of nanocomposites prepared using different polymer host materials and phase-pure rutile TiO2. The inorganic component can be dispersed at higher 50 weight percent into the polymer matrix. We have demonstrated a 0.2–0.3 increase of refractive index in the composite over that of host polymer while maintaining high optical transparency. These nanocomposites can be used in a range of applications or optical devices, such as planar waveguides, flat panel displays, optical sensors, high-brightness LEDs, diffraction gratings and optical data storage. Experimental data on TiO2 nanoparticle characterization, dispersion technique, surface modification and will be presented and nanocomposite properties discussed.
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Couris, S. "Nonlinear optical properties of novel organic-inorganic hybrid materials based on functional block copolymers and metal nanoparticles." In 2008 10th Anniversary International Conference on Transparent Optical Networks (ICTON 2008). IEEE, 2008. http://dx.doi.org/10.1109/icton.2008.4598413.

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Ravi, B. G., S. Sampath, R. Gambino, P. S. Devi, and J. B. Parise. "Plasma Spray Synthesis from Precursors: Progress, Issues and Considerations." In ITSC2006, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, R. S. Lima, and J. Voyer. ASM International, 2006. http://dx.doi.org/10.31399/asm.cp.itsc2006p0871.

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Abstract Precursor plasma spray synthesis is an innovative and rapid method to make functional oxide ceramic coatings by starting from solution precursors and directly producing inorganic films. This emerging method, utilizes molecularly mixed precursor liquids, which essentially avoids the handling and selection of powders, opening up new avenues for developing compositionally complex functional oxide coatings. Precursor plasma spray also offers excellent opportunities in exploring the non-equilibrium phase evolution during plasma spraying of multi-component oxides from inorganic precursors. Although there have been efforts in this area since the 1980s and early 1990s with the goal of synthesizing nanoparticles, only recently has the work progressed in the area of functional systems. At the Center for Thermal Spray Research an integrated investigative strategy has been conducted to explore the benefits and limits of this synthesis strategy. Water and alcohol based sol/solution precursors derived from various chemical synthesis methods were used as feedstocks to deposit thin/thick films of spherical and nanostructured coatings of yttrium aluminum garnet (YAG), yttrium iron garnet (YIG), lanthanum strontium manganite (LSM) and Zr-substituted yttrium titanates, compositions of Y2O3-Al2O3 and their microstructural space centered around stochiometric YAG. A detailed discussion of the salient features of RF induction plasma spraying (RFPPS) approach, results obtained in the investigations to develop various functional oxide coatings and process issues and challenges are presented.
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Kalgaonkar, Rajendra A., Qasim Sahu, and Nour Baqader. "Novel In-Situ Gelled Acid System Based on Inorganic Nanoparticles." In SPE International Hydraulic Fracturing Technology Conference & Exhibition. SPE, 2022. http://dx.doi.org/10.2118/205336-ms.

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Abstract Gelled acid systems based upon gelation of hydrochloric acid (HCl) are widely used in in both matrix acidizing and fracture acidizing treatments to prevent acidizing fluid leak-off into high permeable zones of a reservoir. The gelled up fluid system helps retard the acid reaction to allow deeper acid penetration for hydrocarbon productivity enhancement. The in-situ gelation is typically achieved by using crosslinked polymers with the acid. Conventional in-situ crosslinked gelled acid systems are made up of polyacrylamide gelling agent, iron based crosslinker and a breaker chemical in addition to other additives, with the acid as the base fluid. However, the polymer-based systems can lead to damaging the formation due to a variety of reasons including unbroken polymer residue. Additionally, the iron-based crosslinker systems can lead to scaling, precipitation and or sludge formation after the acid reacts with the formation, resulting in formation damage and lowering of hydrocarbon productivity. In this paper we showcase a new nanoparticles based gelled acid system that overcomes the inherent challenges faced by conventional in-situ crosslinked gelled acid systems. The new system can work in 5 to 20 % HCl up to 300°F. The new system does not contain any polymer or iron based crosslinker that can potentially damage the formation. It comprises nanoparticles, a gelation activator, acidizing treatment additives along with HCl. The new in-situ gelled acid system has low viscosity at surface making it easy to pump. It gels up at elevated temperatures and pH of 1 to 4, which helps with diverting the tail end acid to tighter or damaged zones of the formation. We demonstrate that the viscosification and eventual gelation of the new system can be achieved as the acid reacts with a carbonate formation and the pH rises above 1. As the acid further reacts and continues to spend there by increasing the pH beyond 4, the gel demonstrates reduction of viscosity. This assists in a better cleanup post the acidizing treatment. Various experimental techniques were used to showcase the development of the nanoparticle based acid diversion fluid. Static and dynamic gelation studies as a function of time, temperature and pH are reported. The gelation performance of the new system was evaluated at temperatures up to 300°F and discussed in the paper. Comparative performance of different types of gelation activators on the gelation profile of the nanoparticles is evaluated. It is also shown that the gelation and viscosity reduction is entirely a pH dependent phenomenon and does not require any additional breaker chemistry, and therefore provides more control over the system performance. The novelty of the new gelled acid system is that it is based upon nanoparticles making it less prone to formation damage as compared to a crosslinked polymer based system.
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Kotov, Nicholas A. "Self-assembly of nanoparticles: Toward to biological functions, inorganic viruses, and microscale electronic components." In 2010 IEEE 3rd International Nanoelectronics Conference (INEC). IEEE, 2010. http://dx.doi.org/10.1109/inec.2010.5424517.

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Devaprakasam, D. "Nature Nanocomposite Versus Man-Made Nanocomposites: Studies of Nanoscale Structural, Chemical and Mechanical Hierarchy of a Fish Scale in Contrast With Man-Made Polymer Nanocomposites." In ASME 2013 2nd Global Congress on NanoEngineering for Medicine and Biology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/nemb2013-93085.

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Hierarchical designs of biological structures have remarkable physical, chemical mechanical and biological properties and functionalities over the wide range of length scales [1–4]. Man-made nanocomposites have dramatic improvement of the structural and mechanical properties but however they have very limited hierarchy [5]. Fish scales are bone-like tissues, which form a protective layer on the body of the fish and enable the fish to swim efficiently. Bones and bone-like parts in living organism are formed as tissues by self-assembly of bio-minerals and protein matrix. These tissues are bio-nanocomposites and have hierarchical structure ranging from nanoscale to macroscale [2–4]. Bio-hierarchy contains different bio-macromolecules, bio-minerals, interfacial bonds and porosity which result in gradient mechanical properties at multiple length scales [1–6]. Fish scale consists of inorganic bio-minerals and organic collagens [3,4]. Multilevel hierarchy influences elasticity, hardness and fracture toughness of fish scale. They have additional functions related to movement including reduction or increase of drag [7] and rapid manoeuvre while they are hunting or avoiding predators. In this article we report comparison studies of hierarchical nanocomposite of sardina pilchardus(sp) fish scale and man-made SiO2 nanoparticles filled nanocomposites.
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