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Littérature scientifique sur le sujet « Bio-nano-composites »

Auteur : Grafiati

Publié le 10 mars 2023

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Articles de revues sur le sujet "Bio-nano-composites"

R. Tittmann, Bernhard. « Nano mechanical behavior of bio composites ». International Journal of Biotechnology and Bioengineering 2, n^o 1 (2016) : 41–51. http://dx.doi.org/10.25141/2475-3432-2016-1.0041.

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Myndrul, Valerii, et Igor Iatsunskyi. « Nanosilicon-Based Composites for (Bio)sensing Applications : Current Status, Advantages, and Perspectives ». Materials 12, n^o 18 (6 septembre 2019) : 2880. http://dx.doi.org/10.3390/ma12182880.

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This review highlights the application of different types of nanosilicon (nano-Si) materials and nano-Si-based composites for (bio)sensing applications. Different detection approaches and (bio)functionalization protocols were found for certain types of transducers suitable for the detection of biological compounds and gas molecules. The importance of the immobilization process that is responsible for biosensor performance (biomolecule adsorption, surface properties, surface functionalization, etc.) along with the interaction mechanism between biomolecules and nano-Si are disclosed. Current trends in the fabrication of nano-Si-based composites, basic gas detection mechanisms, and the advantages of nano-Si/metal nanoparticles for surface enhanced Raman spectroscopy (SERS)-based detection are proposed.

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Cheng, Zheng Liang, Qing Hua Xu et Yang Gao. « Research Progress in Nano-Cellulose Modification ». Advanced Materials Research 627 (décembre 2012) : 859–63. http://dx.doi.org/10.4028/www.scientific.net/amr.627.859.

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As an environmentally friendly material prepared from renewable natural resources, nano-cellulose demonstrates excellent properties, including high crystallinity, high purity, high surface area, unique optical properties, and high Young's modulus. Furthermore, it has the advantages of bio-based materials such as light-weight, bio-degradable, bio-compatible, and renewable. Therefore, the nano-cellulose shows a great potential for developing new composite materials with high performances. This paper summarizes the ways for chemically modifying nano-cellulose to obtain better dispersion and improve its compatibility with nonpolar or hydrophobic matrices in nano-composites.

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KOTHARI, SHARAT. « Nanoclay biopolymer composites : Synthesis, characterization and nitrogen release under controlled conditions ». Annals of Plant and Soil Research 24, n^o 3 (1 août 2022) : 434–38. http://dx.doi.org/10.47815/apsr.2021.10188.

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As the production sector of N fertilizer challenged by energy crisis of the world and consumption sector is challenged by the environmental impacts, there is an urgent need to improve the nitrogen use efficiency for the sustainable growth of agriculture sector. The controlled release/ slow-release N fertilizers are smart choices to serve this purpose. So, this manuscript aims to synthesise nano clay bio-polymer composites (NCBPC) and using it for controlled N release. Nano clay bio-polymer composites were prepared by aqueous copolymerization of acrylic acid with acrylamide in presence of bentonite nano clay and starch as a partial replacement for synthetic polymers. Maize and wheat flour (maida) were used as starch source at 20 and 30% replacement level to synthesise different NCBPC products. The resulting products were characterized using FTIR and SEM which revealed the participation of bentonite and starch in the polymerization reaction at the nano level. The incubation study in soil disclosed the slow-release of nitrogen by these materials. Therefore, bentonite clay with cereal grain flours may be used for the synthesis of nano clay bio-polymer composites for slow-release of nitrogen.

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Daghigh, Vahid, Thomas E. Lacy, Hamid Daghigh, Grace Gu, Kourosh T. Baghaei, Mark F. Horstemeyer et Charles U. Pittman. « Machine learning predictions on fracture toughness of multiscale bio-nano-composites ». Journal of Reinforced Plastics and Composites 39, n^o 15-16 (27 avril 2020) : 587–98. http://dx.doi.org/10.1177/0731684420915984.

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Tailorability is an important advantage of composites. Incorporating new bio-reinforcements into composites can contribute to using agricultural wastes and creating tougher and more reliable materials. Nevertheless, the huge number of possible natural material combinations works against finding optimal composite designs. Here, machine learning was employed to effectively predict fracture toughness properties of multiscale bio-nano-composites. Charpy impact tests were conducted on composites with various combinations of two new bio fillers, pistachio shell powders, and fractal date seed particles, as well as nano-clays and short latania fibers, all which reinforce a poly(propylene)/ethylene–propylene–diene-monomer matrix. The measured energy absorptions obtained were used to calculate strain energy release rates as a fracture toughness parameter using linear elastic fracture mechanics and finite element analysis approaches. Despite the limited number of training data obtained from these impact tests and finite element analysis, the machine learning results were accurate for prediction and optimal design. This study applied the decision tree regressor and adaptive boosting regressor machine learning methods in contrast to the K-nearest neighbor regressor machine learning approach used in our previous study for heat deflection temperature predictions. Scanning electron microscopy, optical microscopy, and transmission electron microscopy were used to study the nano-clay dispersion and impact fracture morphology.

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S. Kashan, Jenan,, et Saad M. Ali. « 3D Model of Bone Scaffolds Based on the Mechanical Behaviour for a Hybrid Nano Bio-composites ». journal of Mechanical Engineering 17, n^o 2 (15 juillet 2020) : 45–67. http://dx.doi.org/10.24191/jmeche.v17i2.15300.

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Ceramic/polymer Nano composites in the view of possessing design uniqueness and property combinations have gained a great attention and reported to be the materials of the 21st century that are not found in conventional composites. In the present work, an attempt has been made to study, develop and improve the bio-mechanic for a designed and fabricated Ceramic/polymer bio-composite for a human natural bone repair and replacement in the case of complex fracture and bone diseases by adding the Nano fillers ceramic particles to the Polymer Matrix Nano composites (PMNC) for fabricated a hybrid Titanium dioxide and yttria stabilized zirconia reinforced high density polyethylene (HDPE) matrix bio-composites properties. These bioactive composites have been investigated by using hot pressing technique at different compression pressures of (30, 60, and 90 MPa) at a compounding temperature of (180, 190, and 200 °C). The SOLIDWORKS 17.0 and the finite element ANSYS 15.7 software programs were used to the simulation, modelling and analysing of femur bone biomechanics that can withstand the highest stresses and strains. The response surface methodology (RSM) technique was used to improve and verify the results. For all the fabricated Nano bio-composites systems, the results showed that the obtained output parameters values were increased with increasing the process input parameters, also the vice versa for the strain energy and equivalent elastic strain values, also the Nano ceramic compositions represented the main factor influenced the results. The main investigates results of the current research deduced that for the increase of the Nano ceramic powder (TiO2) contain from 1% to 10%, the compression fracture strength and the micro-Vickers hardness values increased by 50% and by 8.45%, respectively, and when adding 2% of zirconia (ZrO2), an additional increase in the compression fracture strength and micro hardness by 28.21% and 40.19% achieved, respectively. When using 10% TiO2 + 2% ZrO2/HDPE bio-composite at highest compact temperature of 200 °C and compounding pressure of 90 MPa, the strain energy and the equivalent elastic strain reduced by 82.69% and 14.53% when compared with using of 1% TiO2 content. While when increasing the nano ceramic content from 1% to 10% without adding the ZrO2 nano filler, they reduced by 142.25% and 67.81%, respectively. The maximum equivalent von Misses stress obtained is equal to 39.957MPa and when increasing the nano ceramic content from 1% to 10%, the stress safety factors and fatigue live values increased by 58.38% and by 46.28%, respectively and when adding 2% of zirconia (ZrO2), the stress safety factor reached its maximum values, with an additional increase in its values by 21.42% and 69.40%, respectively. These results give great choices to use successful in vivo tests and for a better life performance with any age, patient status and degree of injury.

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Ali, M. S., A. A. Al-Shukri, M. R. Maghami et C. Gomes. « Nano and bio-composites and their applications : A review ». IOP Conference Series : Materials Science and Engineering 1067, n^o 1 (1 février 2021) : 012093. http://dx.doi.org/10.1088/1757-899x/1067/1/012093.

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Okamoto, Mitsuyo, E. Iwai, H. Hatta, Hitoshi Kohri et Ichiro Shiota. « New Fabrication Process of Nano–Composites by Biomimetic Approach ». Advances in Science and Technology 58 (septembre 2008) : 60–65. http://dx.doi.org/10.4028/www.scientific.net/ast.58.60.

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In bio-systems, nano-composites with complex micro-structures are formed by self-assembly only using low energy at room temperature. If these mechanisms of biological tissue are identified, we can possibly propose a new process to fabricate composites by mimicking tissue formation in vivo. As a bio-material, we paid attention to bio-tissue reinforced with collagen fibrils. Collagen fibrils are of baculiform; Thus the self-assembly process through liquid crystalline transition has been proposed by a French group [1]. In the present study, factors controlling liquid crystalline transition, e.g. concentration and pH, are discussed using collagen solution. When liquid crystalline phase is produced, aligned molecules exhibits optical anisotropy. This anisotropy was observed with a polarized optical microscopy (POM). By observations with POM, development of cholesteric phase in collagen solution was clarified.

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Oliver, Daniel, Monika Michaelis, Hendrik Heinz, Victor V. Volkov et Carole C. Perry. « From phage display to structure : an interplay of enthalpy and entropy in the binding of the LDHSLHS polypeptide to silica ». Physical Chemistry Chemical Physics 21, n^o 8 (2019) : 4663–72. http://dx.doi.org/10.1039/c8cp07011c.

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Semba, Takeshi, Akihiro Ito, Takahiro Uesaka, Kazuo Kitagawa, Kunio Taguma, Masataka Tawara, Hiroyuki Yano et Akihiro Sato. « Bio-Composites Composed of Cellulose nano-fiber and polyamide 11 ». Seikei-Kakou 26, n^o 7 (2014) : 355–58. http://dx.doi.org/10.4325/seikeikakou.26.355.

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Thèses sur le sujet "Bio-nano-composites"

Osorio, Madrazo Anayancy. « Whiskers de chitosane pour bio-nano-composites ». Lyon 1, 2008. http://www.theses.fr/2008LYO10142.

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Cette thèse concerne l’obtention de whiskers de chitosane par hydrolyse acide à l’état solide des particules issues de la désacétylation hétérogène de la chitine, lesquels pourraient servir comme charge de renfort de biomatériaux nanocomposites utiles en ingénierie tissulaire. L’hydrolyse conduit à la dégradation et élimination par lavages de la phase amorphe, ainsi qu’à une recristallisation des espèces mobiles sous l’allomorphe anhydre de chitosane dans un contexte hydrophobique ; ce qui permet la récupération d’un résidu hautement cristallin portant de microcristaux whiskers. L’étude a révélé que les différentes phases qui conforment le chitosane à l’état solide portent des cinétiques d’hydrolyse différentes. En première, l’hydrolyse des appelées liaisons faibles est produite; il s’en suit l’hydrolyse de la phase amorphe plus dense simultanée avec celle de l’allomorphe anhydre du chitosane apparue lors de la réaction. Un troisième régime ne concerne que l’hydrolyse des domaines cristallins, en particulier celle de l’allomorphe anhydre car d’autre part l’allomorphe hydratée, qui était déjà présente dans le produit de départ, est plutôt préservée. En outre, l’accumulation de cristaux anhydres à la périphérie de la structure fait obstacle au progrès de la réaction sur la fraction amorphe restante, ce qui a été confirmé par des études d’hydrolyse multi-étapes. Ces dernières nous ont également permis d’obtenir un produit hautement polycristallin avec une proportion importante d’allomorphe anhydre, grâce aux lavages des hydrolysats dans des conditions acidiques et basiques concentrées entre les étapes successives. L’obtention de microfibrilles cristallines capables de s’orienter préférentiellement a été confirmée par des techniques puissantes parmi elles la diffraction de rayons X synchroton, et les resultats ont révélé une structure où l’axe de la chaîne polymère est parallèle à l’axe de fibrille, en accord avec une morphologie de type whiskers. Une première étude de preparation de nanocomposites en associant ces particules portant des whiskers avec des glycosaminoglycanes (GAGs) a montré leur potentialité pour constituer la charge d’un support physique de propriétés mécaniques et biologiques intéressantes d’application dans l’ingénierie tissulaire
This thesis concerns the obtaining of chitosan whiskers by solid-state acid hydrolysis of the particles coming from the heterogeneous deacetylation of the chitin, which could serve as reinforcing of nanocomposite biomaterials useful in tissue engineering. The hydrolysis led to the degradation and elimination by washings of the amorphous phase, as well as the re-crystallization of mobile species in anhydrous allomorph in a hydrophobic context; so to allow recovering a highly crystalline product carrying whisker microcrystals. The survey revealed the different phases that constitute the chitosan in the solid state lead to different hydrolysis kinetics. In first, the so called weak link hydrolysis is produced, then, that of the denser amorphous phase occurs simultaneously with the hydrolysis of the chitosan anhydrous polymorph. A third regime concerns the hydrolysis of crystalline domains, in particular that of the anhydrous polymorph so on other hand the hydrated polymorph, which was already present in the starting product, is quite preserved. Besides, the anhydrous crystal accumulation to the periphery of the structure made obstacle to the progress of the reaction into the remaining amorphous fraction, what has been confirmed by studies of multi-step hydrolysis. These latter also allowed us to obtain a highly polycrystalline product with a high proportion of anhydrous polymorph, thanks to the hydrolyzates washings in concentrated acidic and/or basic conditions between the successive steps. The obtaining of crystalline microfibrils able to orientate preferentially was confirmed by powerful techniques among them the diffraction of synchroton X rays, and results have indicated a structure with polymer chain axe parallel to the fibril axe, accordingly with a whiskers morphology. A first study of preparation of nanocomposites associating these particles carrying whiskers with glycosaminoglycans (GAGs) showed their potentiality to constitute the filler of physical supports of mechanical and biological properties interesting for applications in tissue engineering

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Di, Giacomo Raffaele. « Carbon nanotube based networks, bio-nano-composites and sensors ». Doctoral thesis, Universita degli studi di Salerno, 2013. http://hdl.handle.net/10556/1326.

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2011 - 2012
The formation of a photosensitive device due to the local breakdown in an MOS structure with an impurity containing oxide layer has been observed. A stepwise breakdown of the oxide layer resulted in the formation of a transistor like characteristics with further on stable current-voltage characteristics. A high value of the photosensitivity of the resulting structure has been found, when illuminated with white or blue light. This can be explained by the formation of a local p-n junction during electrical breakdown due to out-diffusion of dopants from the oxide into the underlying silicon substrate. The development of the photocurrent has been monitored during breakdown formation. This monitoring procedure can be used for the optimization of the photosensitive device. After these experiments a defect-free oxide was produced and tested. Multi walled carbon nanotubes (MWCNTs) have been deposited by casting electrophoresis on top of this SiO2 layer. Using three different microscopy techniques: namely Atomic Force Microscopy, Secondary Electron Microscopy and Focused Ion Beam Microscopy, the geometry of the interconnection of a single junction between the deposited MWCNTs has been investigated in detail. A very particular twisted interconnection geometry has been observed. Furthermore a strong stability of the sample in time has been observed proving a strong adhesion of the tubes to the SiO2 surface. Furthermore, MWCNTs were deposited from two different solutions leading to different results regarding their morphology: an almost bi-dimensional “carpet” of MWCNTs, and a network composed of a very limited number of MWCNTs. The “carpet” was obtained using a solution with 1% of sodium dodecyl sulfate in de-ionized water, saturated with MWCNTs. This solution was very stable in time and reproducible carbon nanotube networks could be obtained. All the pure nanotube networks were deposited by di-electrophoresis inside an aluminium contact gap with a contact distance of 3μm. After the deposition the temperature dependent conductivity of the MWCNTs “carpet” inside the aluminum contact gap has been determined. The temperature behavior of the conductivity shows a good qualitative agreement with the fluctuation induced tunneling model for disordered materials. A rapid reduction of the random telegraph noise present in the virgin devices has been observed after relatively short application of a constant voltage. This increases the possibilities to use aluminum contacts for electronic CNT devices like sensors, where device stability is more important than high current levels. When a different solvent has been used, that resulted in a much lower concentration of CNTs within the micro-gap, a stable electrical behavior has not been achieved. Successively using the same technique for the solution of MWCNTs a Candida albicans/multi walled carbon nanotube (Ca/MWCNTs) composite material has been produced. It can be used as a temperature-sensing element operative in a wide temperature range (up to 180 °C). The Ca/MWCNTs composite has excellent linear current-voltage characteristics when combined with coplanar gold electrodes. Growing cells of C. albicans were used to structure the carbon nanotube-based composite. The fungus C. albicans combined with MWCNTs co-precipitated as an aggregate of cells and nanotubes that formed a viscous material. Microscopic analyses showed that Ca/MWCNTs formed an artificial tissue. Slow temperature cycling was performed for up to 12 days showing a stabilization of the temperature response of the material. As another application of this new bio-nano-composite layer, the realization of a flexible transparent conductive film has been demonstrated. A more general procedure in order to obtain novel artificial materials has been proposed and realized using isolated tobacco cells in combination with carbon nanotubes. The electrical, mechanical, optical, thermo-electrical properties of these materials have been determined. Using tobacco cells, a material with low mass density and mechanical properties suitable for structural applications, along with high values of the electrical conductivity has been obtained. Measurements of the mechanical and electrical behavior have been combined with theoretical modeling. These findings indicate a procedure for next generation cyborg nano-composite materials. [edited by authors]
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He, Jing. « Des (bio)nano-composites utilisés dans le traitement d'eaux contaminées par de l'arsenic/gentamicine ou pour des applications médicales ». Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00988092.

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Les composés dits 'bionano' (bionanocomposites) apparaissent comme un nouveau groupe de matériaux hybrides nano-structurés. Ils sont issus de la combinaison de polymères naturels et de solides inorganiques et sont de l'ordre du nanomètre dans au moins une direction. Ces matériaux hybrides conservent les structures et les propriétés fonctionnelles des polymères et matériaux inorganiques dont ils sont composés. Parallèlement, la présence de biopolymères permet de diminuer les risques environnementaux et de santés publiques liés aux nano-matériaux. Les propriétés inhérentes aux biopolymères (biocompatibles' et biodégradables) ouvrent des perspectives intéressantes pour ces matériaux hybrides en particulier dans les domaines de la médecine regénérative et en génie de l'environnement. La production de bionanocomposites de taille plus importante, que les nanoparticules qu'ils renferment, permet d'éviter les effets nocifs potentiels des nanoparticules (NPs) pour les organismes vivants et plus particulièrement pour l'homme. L'association de biopolymères et de nano-solides inorganiques permet la conception de bionanocomposites multifonctionnels qui peuvent être synthétisés et utilisés pour des applications dans des domaines variés. Cette thèse se propose d'étudier principalement (i) ma présence d'arsenic et d'antibiotiques dans les sources d'eau potable en Chine; (ii) l'évaluation d'un nouveau bionanocomposites, à savoir le CGB (chitosan goethite bionanocomposite), dans la décontamination des eaux contenant des espèces inorganiques d'arsenic; (iii) l'évaluation d'argiles comme adsorbants de décontamination de la gentamicine (un antibiotique aminoglycoside ) présent dans l'eau de même que celle de bionanocomposés fait d'argiles riches en gentamicine de polymères de methycelluloses hydroxypropyles Gt-Mt-HPMC (gentamicin-montmorillonite- hydroxypropyl methycellulose) utilisés comme pansement contre les infections qui ont lieu suite à des brûlures.

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Hyatt, Thomas B. « Piezoresistive Nano-Composites : Characterization and Applications ». BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2175.

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Innovative multifunctional materials are essential to many new sensor applications. Piezoresistive nano-composites make up a promising class of such materials that have the potential to provide a measurable response to strain over a much wider range than typical strain gages. Commercial strain gages are currently dominated by metallic sensors with a useable range of a few percent strain at most. There are, however, many applications that would benefit from a reliable wide-range sensor. These might include the study of explosive behavior, instrumentation of flexible components, motion detection for compliant mechanisms and hinges, human-technology interfaces, and a wide variety of bio-mechanical applications where structural materials may often be approximated as elastomeric. In order to quantify large strains, researchers often use optical methods which are tedious and difficult. This thesis proposes a new material and technique for quantifying large strain (up to 40%) by use of piezoresistive nano-composite strain gages. The nano-composite strain gage material is manufactured by suspending nickel nano-strands within a biocompatible silicone matrix. Study and design iteration on the strain gage material requires an improved understanding of the electrical behavior and conduction path within the material when strained. A percolation model has been suggested for numerical approximations, but has only provided marginal results for lack of data. Critical missing information in the percolation model is the nano-strand cluster size, and how that size changes in response to strain. These data are gathered using a dynamic technique in the scanning electron microscope called voltage contrast. Cluster sizes were found to vary in size by approximately 6% upon being strained to 10%. A feasibility study is also conducted on the nano-composite to show its usability as a strain gage. High Displacement Strain Gages (HDSGs) were manufactured from the nano-composite. HDSGs measured the strain of bovine ligament under prescribed loading conditions. Results demonstrate that HDSGs are an accurate means for measuring ligament strains across a broad spectrum of applied deformations.

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Livres sur le sujet "Bio-nano-composites"

Kalia, Susheel, B. S. Kaith et Inderjeet Kaur, dir. Cellulose Fibers : Bio- and Nano-Polymer Composites. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7.

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S, Kaith B., Kaur Inderjeet et SpringerLink (Online service), dir. Cellulose Fibers : Bio- and Nano-Polymer Composites : Green Chemistry and Technology. Berlin, Heidelberg : Springer-Verlag Berlin Heidelberg, 2011.

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Kaur, Inderjeet, Susheel Kalia et B. S. Kaith. Cellulose Fibers : Bio- and Nano-Polymer Composites : Green Chemistry and Technology. Springer, 2016.

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Kaur, Inderjeet, Susheel Kalia et B. S. Kaith. Cellulose Fibers : Bio- and Nano-Polymer Composites : Green Chemistry and Technology. Springer, 2011.

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Chapitres de livres sur le sujet "Bio-nano-composites"

Spence, Kelley, Youssef Habibi et Alain Dufresne. « Nanocellulose-Based Composites ». Dans Cellulose Fibers : Bio- and Nano-Polymer Composites, 179–213. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7_7.

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Nyuk Khui, P. L., Md Rezaur Rahman, S. Hamdan, M. K. B. Bakri, E. Jayamani et A. Kakar. « Effect of Nano-enhancement on Acacia Wood Bio-composites ». Dans Acacia Wood Bio-composites, 187–205. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29627-8_9.

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Borges, J. P., M. H. Godinho, J. L. Figueirinhas, M. N. de Pinho et M. N. Belgacem. « All-Cellulosic Based Composites ». Dans Cellulose Fibers : Bio- and Nano-Polymer Composites, 399–421. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7_15.

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Wanjale, Santosh D., et Jyoti P. Jog. « Polyolefin-Based Natural Fiber Composites ». Dans Cellulose Fibers : Bio- and Nano-Polymer Composites, 377–98. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7_14.

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Pandey, J. K., D. R. Saini et S. H. Ahn. « Degradation of Cellulose-Based Polymer Composites ». Dans Cellulose Fibers : Bio- and Nano-Polymer Composites, 507–17. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7_19.

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Sapuan, S. M., A. R. Mohamed, J. P. Siregar et M. R. Ishak. « Pineapple Leaf Fibers and PALF-Reinforced Polymer Composites ». Dans Cellulose Fibers : Bio- and Nano-Polymer Composites, 325–43. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7_12.

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Saxena, Mohini, Asokan Pappu, Ruhi Haque et Anusha Sharma. « Sisal Fiber Based Polymer Composites and Their Applications ». Dans Cellulose Fibers : Bio- and Nano-Polymer Composites, 589–659. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7_22.

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Thomas, S., S. A. Paul, L. A. Pothan et B. Deepa. « Natural Fibres : Structure, Properties and Applications ». Dans Cellulose Fibers : Bio- and Nano-Polymer Composites, 3–42. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7_1.

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Borysiak, Slawomir, Dominik Paukszta, Paulina Batkowska et Jerzy Mańkowski. « The Structure, Morphology, and Mechanical Properties of Thermoplastic Composites with Ligncellulosic Fiber ». Dans Cellulose Fibers : Bio- and Nano-Polymer Composites, 263–90. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7_10.

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Mathew, Lovely, M. K. Joshy et Rani Joseph. « Isora Fibre : A Natural Reinforcement for the Development of High Performance Engineering Materials ». Dans Cellulose Fibers : Bio- and Nano-Polymer Composites, 291–324. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17370-7_11.

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Actes de conférences sur le sujet "Bio-nano-composites"

Moeller, Daniel K., Hee K. Cho, Kory L. Derenne et Yuri M. Shkel. « Micro-tailoring micro- and nano-composites : towards variable orthotropy for bio-mimicking materials ». Dans Smart Structures and Materials, sous la direction de Alison B. Flatau. SPIE, 2005. http://dx.doi.org/10.1117/12.605851.

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Singh, A., C. Sguazzo, C. Lima, L. Santos, P. Tavares et P. Moreira. « Functionalization of Carbon Nanotubes and Mechanical Characterisation of Bio-based Epoxy Nano-composites ». Dans I European Conference On Multifunctional Structures. CIMNE, 2020. http://dx.doi.org/10.23967/emus.2019.015.

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Al-Safy, Mahmoud, Nasr Al Hinai et Khalid Alzebdeh. « Production of Date Palm Nanoparticle Reinforced Composites and Characterization of Their Mechanical Properties ». Dans ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-95413.

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Abstract The extraction of Nano-sized fillers from bio sources has been a key focus of the material industry to secure green composites for a wide range of applications. Consequently, chemical fragmentation and downsizing of waste lignocellulosic fibers into small size particles is a viable economic and environmental option. The objective of this work is to explore the potential use of Nano natural fillers as a reinforcement element in thermoplastic polymers. In specific, the Nano-sized lignocellulosic filler is extracted from date palm microfibers using the mechanical ball milling technique. The ball milling is performed at a high speed of 12 cycles per minute for four different time durations. The achieved nanoparticle size ranged from 80 to 122 nm, reduced to a range of 70 to 51 nm and then reached 27 to 39 nm after 3, 4 and 5 hours of powdering, respectively, with no significant change in size after 6 hours of milling. After that, the morphological properties of the produced fillers are characterized using various techniques such as transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Finally, the mechanical performance of the reinforced recycled polypropylene (rPP) using 10% (wt.) date palm nanofillers is investigated using tensile and flexural tests, as well as the physical properties including water absorption and density tests. Successful implementation of nanofillers in bio-composites offers an economical and sustainable route to attain high-performance material in the future.

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Karlovits, Igor. « Lignocellulosic bio-refinery downstream products in future packaging applications ». Dans 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p2.

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The concept of efficient utilisation of renewable bio-based materials (biomass feedstock) is the driving force in the green transformation to a more sustainable and circular society. Biorefineries or biochemical platforms convert and utilise different sources of biomass into fuels and other beneficial derivates like fibres and other bio-based chemicals. These can be used as building blocks for many potentially useful applications. In this review, we shall describe the current state of the art and trends in the conversion of lignocellulosic feedstock into materials which can be primarily used in packaging applications. The three main constituents (cellulose, hemicellulose and lignin) are being re-engineered into new products with higher added value. The main goal of all these downstream products is that they do not compete with animal feed and food applications. The main downstream products of different kind of transformations are different natural fibres which can be further processed into micro or nano fibrillated state and used for a broad application of fields from ink, adhesive and packaging materials. Also, fibres and its derivates can be bonded successfully into bio-composites or fibre-based foams applications for the protective packaging applications. Hemicellulose, as a second most abundant component, has been researched for applications in adhesives and paper and paperboard coatings. Lignin which is currently utilised as an energy source for the paper industry, has been recently actively researched. Lignin-based biopolymers have a potential to be used in many different applications from additives in the barrier coatings on the packaging to active packaging and even as lignin-based foams. All these applications are currently in the development stages and cover niche market segments, but are expected to grow and to be used in future markets.

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Rai, Pratyush, Jining Xie, Vijay K. Varadan, Thang Ho et Jamie A. Hestekins. « Sensory Biofuel Cell for Self-Sustained Glucose Sensing in Healthcare Applications for Diabetes Patients ». Dans ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology. ASMEDC, 2010. http://dx.doi.org/10.1115/nemb2010-13029.

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In biosensor design, sensor for blood-glucose-level detection is one of the elementary concepts. Many research groups have reported opto-electro-mechanical and biomimetic techniques for glucose sensing based on nanomaterials. (1) However, the popular commercialized techniques involve drawing blood samples and in-vitro processing. An implantable sensor requires energy source for operation with wire in-out provision for acquiring power and sending signals. Needless to say, the limitation for such a glucose sensor is alimentary rather than elementary. The problem requires innovative design to develop sustainable ensemble of bio-energy harvesting, sensing and telemetry components. The study, reported in this article, is directed towards developing a sensor-fuel cell technology with the potential of miniaturization for implants. The device design is a combination of nano-engineered composites and flexible thin film processing to achieve high density packaging. Of which, the end goal is simultaneous generation-transmission of sensory signals and production of energy.

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Boldini, Alain, Kevin Jose, Youngsu Cha et Maurizio Porfiri. « Electrostatic actuation in ionic polymer-metal composites ». Dans Nano-, Bio-, Info-Tech Sensors and 3D Systems, sous la direction de Jaehwan Kim. SPIE, 2019. http://dx.doi.org/10.1117/12.2514277.

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Ko, Hyun-U., Hyun Chan Kim, Jung Woong Kim, Eun Sik Choi et Jaehwan Kim. « Feasibility of PVA-lignin as resin for nanocellulose future composites ». Dans Nano-, Bio-, Info-Tech Sensors and 3D Systems, sous la direction de Jaehwan Kim. SPIE, 2019. http://dx.doi.org/10.1117/12.2513871.

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Agumba, Dickens O., Duc Hoa Pham, Muhammad Latif, Bijender Kumar et Jaehwan Kim. « Esterified lignin-based resin for cellulose-long-filament reinforced polymer composites ». Dans Nano-, Bio-, Info-Tech Sensors, and Wearable Systems, sous la direction de Jaehwan Kim, Kyo D. Song, Ilkwon Oh et Maurizio Porfiri. SPIE, 2022. http://dx.doi.org/10.1117/12.2612849.

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Namdari, Navid, Ravi Sadanala, Hossein Sojoudi et Reza Rizvi. « Facile fabrication of nano-featured superhydrophobic surfaces by damage induced surface texturing of nano-composites (Conference Presentation) ». Dans Nano-, Bio-, Info-Tech Sensors and 3D Systems, sous la direction de Jaehwan Kim. SPIE, 2020. http://dx.doi.org/10.1117/12.2558987.

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Khosla, Ajit. « Carbon nanoparticle doped micro-patternable nano-composites for wearable sensing applications (Conference Presentation) ». Dans Nano-, Bio-, Info-Tech Sensors and 3D Systems, sous la direction de Vijay K. Varadan. SPIE, 2017. http://dx.doi.org/10.1117/12.2261253.

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