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Artículos de revistas sobre el tema "Nitrure de Bore hexagonale"

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1

Yallese, Mohamed Athmane, Lakhdar Boulanouar, and Kamel Chaoui. "Usinage de l'acier 100Cr6 trempé par un outil en nitrure de bore cubique." Mécanique & Industries 5, no. 4 (2004): 355–68. http://dx.doi.org/10.1051/meca:2004036.

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2

Greco, M., C. Guimon, M. Loudet, and G. Pfister-Guillouzo. "Étude par XPS et calculs ab initio de couches minces de nitrure de bore." Journal de Chimie Physique 91 (1994): 1711–27. http://dx.doi.org/10.1051/jcp/199491711.

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3

Matar, S., V. Gonnet, and G. Dernazeau. "Structure électronique du nitrure de bore cubique dans l'approximation de la densité électronique locale." Journal de Physique I 4, no. 2 (1994): 335–42. http://dx.doi.org/10.1051/jp1:1994141.

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4

Djouadi, A., D. Bouchier, and M. Lambertin. "Effets thermiques et collisionnels sur les contraintes internes de films de nitrure de bore déposés sous assistance ionique." Revue de Métallurgie 91, no. 9 (1994): 1283. http://dx.doi.org/10.1051/metal/199491091283.

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5

Perçin, Ali, Aliekber Yapar, Mehmet Ali Tokgöz, Semih Yaş, Alim Can Baymurat, and Hakan Yusuf Selek. "Effects of hexagonal boron nitride on mechanical properties of bone cement (Polymethylmethacrylate)." Joint Diseases and Related Surgery 35, no. 2 (2024): 340–46. http://dx.doi.org/10.52312/jdrs.2024.1513.

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6

Islamov, D. R., T. V. Perevalov, A. A. Gismatulin, I. A. Azarov, E. V. Spesivtsev, and V. A. Gritsenko. "Mekhanizm poperechnogo transporta zaryada v tonkikh plenkakh geksagonal'nogo nitrida bora." Журнал экспериментальной и теоретической физики 163, no. 3 (2023): 392–400. http://dx.doi.org/10.31857/s0044451023030112.

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A mechanism of transverse charge transfer through hexagonal boron nitride (h-BN) in a MIS structure has been studied. Experimental data for charge transfer have been analyzed in terms of different models of charge transfer in insulators. It has been shown that charge transfer in h-BN is described by the model of phonon-assisted tunneling between neutral traps. The thermal and optical energies of phonon-coupled traps in h-BN have been determined. Based on charge transfer measurements, XPS spectra, and the ab initio electronic structure of intrinsic defects in h-BN it has been found that boron–n
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7

Faksawat, Kridsada, Supphadate Sujinnapram, Pichet Limsuwan, Ekachai Hoonnivathana, and Kittisakchai Naemchanthara. "Preparation and Characteristic of Hydroxyapatite Synthesized from Cuttlefish Bone by Precipitation Method." Advanced Materials Research 1125 (October 2015): 421–25. http://dx.doi.org/10.4028/www.scientific.net/amr.1125.421.

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Calcium phosphates ceramics such as a hydroxyapatite have composition and structure similar to be mineral component of bone. Hydroxyapatite could be production from natural and chemical source with various techniques. In this study, Calcium phosphates was prepared and characterized for future applications on the utilization of bioactivity and resorbability of Hydroxyapatite. Hydroxyapatite was synthesized by precipitation method using cuttlefish bone as the calcium (Ca) source in the form of calcium nitrate and ammonium phosphate as the phosphate (P) source. The property, crystal structure and
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8

Aki, Deniz, Songul Ulag, Semra Unal, et al. "3D printing of PVA/hexagonal boron nitride/bacterial cellulose composite scaffolds for bone tissue engineering." Materials & Design 196 (November 2020): 109094. http://dx.doi.org/10.1016/j.matdes.2020.109094.

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9

Angleraud, B., J. Aubreton, and A. Catherinot. "Étude de l'expansion du panache plasma formé lors de l'interaction entre un laser ultraviolet et une cible de nitrure de bore ; application à la réalisation de couches minces." Annales de Physique 22 (February 1997): C1–121—C1–122. http://dx.doi.org/10.1051/anphys/1997022.

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10

Ensoylu, Mertcan, Aylin M. Deliormanlı, and Harika Atmaca. "Preparation, Characterization, and Drug Delivery of Hexagonal Boron Nitride-Borate Bioactive Glass Biomimetic Scaffolds for Bone Tissue Engineering." Biomimetics 8, no. 1 (2022): 10. http://dx.doi.org/10.3390/biomimetics8010010.

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In this study, biomimetic borate-based bioactive glass scaffolds containing hexagonal boron nitride hBN nanoparticles (0.1, 0.2, 0.5, 1, and 2% by weight) were manufactured with the polymer foam replication technique to be used in hard tissue engineering and drug delivery applications. To create three-dimensional cylindrical-shaped scaffolds, polyurethane foams were used as templates and covered using a suspension of glass and hBN powder mixture. Then, a heat treatment was applied at 570 °C in an air atmosphere to remove the polymer foam from the structure and to sinter the glass structures. T
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11

Fayyazbakhsh, Fateme, Mehran Solati-Hashjin, M. A. Shokrgozar, et al. "Biological Evaluation of a Novel Tissue Engineering Scaffold of Layered Double Hydroxides (LDHs)." Key Engineering Materials 493-494 (October 2011): 902–8. http://dx.doi.org/10.4028/www.scientific.net/kem.493-494.902.

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Bone Tissue Engineering (BTE) composed of three main parts: scaffold, cells and signaling factors. Several materials and composites are suggested as a scaffold for BTE. Biocompatibility is one of the most important property of a BTE scaffold. In this work synthesis of a novel nanocomposite including layered double hydroxides (LDH) and gelatin is carried out and its biological properties were studied. The co-precipitation (pH=11) method was used to prepare the LDH powder, using calcium nitrate, Magesium nitrate and aluminum nitrate salts as starting materials. The resulted precipitates were dri
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12

Virk, Ranjot Singh, Muhammad Atiq Ur Rehman, Muhammad Azeem Munawar, et al. "Curcumin-Containing Orthopedic Implant Coatings Deposited on Poly-Ether-Ether-Ketone/Bioactive Glass/Hexagonal Boron Nitride Layers by Electrophoretic Deposition." Coatings 9, no. 9 (2019): 572. http://dx.doi.org/10.3390/coatings9090572.

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Electrophoretic deposition (EPD) was used to produce a multilayer coatings system based on chitosan/curcumin coatings on poly-ether-ether-ketone (PEEK)/bioactive glass (BG)/hexagonal boron nitride (h-BN) layers (previously deposited by EPD on 316L stainless steel) to yield bioactive and antibacterial coatings intended for orthopedic implants. Initially, PEEK/BG/h-BN coatings developed on 316L stainless steel (SS) substrates were analyzed for wear studies. Then, the EPD of chitosan/curcumin was optimized on 316L SS for suspension stability, thickness, and homogeneity of the coatings. Subsequent
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13

Bakan, Feray, Meltem Sezen, Merve Gecgin, Yapincak Goncu, and Nuran Ay. "Structural and Chemical Analysis of Hydroxyapatite (HA)-Boron Nitride (BN) Nanocomposites Sintered Under Different Atmospheric Conditions." Microscopy and Microanalysis 23, no. 5 (2017): 891–99. http://dx.doi.org/10.1017/s1431927617012405.

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AbstractCalcium phosphate derivatives have been widely employed in medical and dental applications for hard tissue repair, as they are the main inorganic constitution of hard tissue; such as bones and teeth. Owing to their excellent osteoconductive and bioactive properties, hydroxyapatite- (HA) based ceramics are the best candidates of this group for medical, bioscience, and dental applications. However, when replacing a bone or tooth, HA is not able to sustain similar mechanical properties. In this study, to improve the mechanical properties, nanoscale hexagonal boron nitride with different c
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14

Ozbek, Burak, Barkın Erdogan, Nazmi Ekren та ін. "Production of the novel fibrous structure of poly(ε-caprolactone)/tri-calcium phosphate/hexagonal boron nitride composites for bone tissue engineering". Journal of the Australian Ceramic Society 54, № 2 (2017): 251–60. http://dx.doi.org/10.1007/s41779-017-0149-0.

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15

Sánchez-Campos, Daniel, Maria Isabel Reyes Valderrama, Susana López-Ortíz, et al. "Modulated Monoclinic Hydroxyapatite: The Effect of pH in the Microwave Assisted Method." Minerals 11, no. 3 (2021): 314. http://dx.doi.org/10.3390/min11030314.

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Hydroxyapatite (HAp) is a natural hard tissue constituent widely used for bone and tooth replacement engineering. In the present work, synthetic HAp was obtained from calcium nitrate tetrahydrate (Ca(NO3)2·4H2O) and ammonium phosphate dibasic (NH4)2HPO4 following an optimized microwave assisted hydrothermal method. The effect of pH was evaluated by the addition of ammonium hydroxide (NH4OH). Hence, different characterization techniques were used to determine its influence on the resulted HAp powders’ size, shape, and crystallinity. By Transmission Electron Microscopy (TEM), it was observed tha
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16

Sukhodub, L.B, G.E Khrystian, L.F Sukhodub, et al. "COMPOSITE MATERIALS BASED ON ZINC SULFIDE AND ZINC OXIDE: STRUCTURAL AND BIOCIDAL PROPERTIES." Annals of Mechnikov Institute, no. 4 (December 2, 2016): 34–39. https://doi.org/10.5281/zenodo.192298.

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Introduction. The widespread use of drugs with antimicrobial action has led to the formation of microorganism resistance against wide range of antibiotics. One of the approaches to dissolving this problem is the substances modification by inorganic bioactive ions in oder to initiate a controlled reaction in the bone tissues and provision of antimicrobial activity. It is known that ZnO-based materials have a pronounced biocompatibility, they are characterized by high limit strength, absolute mechanical hardness, as well as the ability to withstand the harsh operating conditions. The aim of this
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17

SAMUR, Enes Arda, and Tolga DEMİRCAN. "Investigation of the effects of using hexagonal boron nitride-water nanofluid on thermal performance in solar collectors." Journal of Boron, July 31, 2022. http://dx.doi.org/10.30728/boron.1113557.

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Bu çalışmada parabolik güneş kolektöründe kullanılan toplayıcı bir borunun içine dikdörtgen spiral bir kanatçık eklenilmesi ve nanoakışkan kullanımının ısıl performansa olan etkileri sayısal olarak incelenmiştir. Kanatçığın boru uzunluğu boyunca spiral sarım sayısı değiştirilerek dört adet model geometri oluşturulmuştur. Toplayıcı borunun içinden Hegzagonal Bor Nitrür-Su (hBN-su) nanoakışkanının geçtiği kabul edilmiştir. Nano akışkanın hacimsel karışım oranları %0 ile %4 aralığında değiştirilmiştir. Akış laminer bir akıştır ve Reynolds sayısı sabit 1500 değerinde alınmıştır. Farklı parametrele
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18

Yang, Gongxian, Bin Zou, Xinfeng Wang, et al. "Stereolithography Printing and Mechanical Properties of Polyethylene Glycol Diacrylate/Hexagonal Boron Nitride Ceramic Composites." Advanced Engineering Materials, October 25, 2024. http://dx.doi.org/10.1002/adem.202401572.

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To enhance the mechanical properties of bioceramic composite bone scaffolds, a composite paste of polyethylene glycol diacrylate (PEGDA) and hexagonal boron nitride (h‐BN) with a solid content of up to 42 wt% was developed in this study. The part was produced using stereolithography (SLA). The SLA printing parameters and material ratios of the paste were optimized through a homogeneous design and mechanical property tests. The results indicate that the single‐line curing width of the PEGDA/h‐BN paste in the XY plane ranged from 172 to 209 μm, while the curing depth of a single layer along the
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19

Ensoylu, Mertcan, Aylin M. Deliormanlı, and Harika Atmaca. "Hexagonal Boron Nitride/PCL/PLG Coatings on Borate Bioactive Glass Scaffolds for Bone Regeneration." Journal of Inorganic and Organometallic Polymers and Materials, March 9, 2022. http://dx.doi.org/10.1007/s10904-022-02246-8.

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20

Dubey, Raksha, Matthew Cowles, Zohreh Salimi, et al. "Boron nitride nanosheets, quantum dots, and dots: Synthesis, properties, and biomedical applications." APL Materials 13, no. 4 (2025). https://doi.org/10.1063/5.0255590.

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This review examines three aspects of hexagonal boron nitride (h-BN) nanomaterials: properties, synthesis methods, and biomedical applications. We focus the scope of review on three types of h-BN nanostructures: boron nitride nanosheets (BNNSs, few-layered h-BN, larger than ∼100 nm in lateral dimensions), boron nitride quantum dots (BN QDs, smaller than ∼10 nm in all dimensions, with inherent excitation-dependent fluorescence), and boron nitride dots (BN dots, smaller than ∼10 nm in all dimensions, wide bandgap without noise fluorescence). The synthesis methods of BNNSs, BN QDs, and BN dots ar
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21

Meriç, Neslihan, Fatih Kar, and Ezgi Kar. "Evaluation of the Proliferative Effects of Hexagonal Boron Nitride Nanoparticles on Leukemia Cells and Leukemia Stem Cells." OSMANGAZİ JOURNAL OF MEDICINE 47, no. 1 (2024). http://dx.doi.org/10.20515/otd.1550401.

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Leukemia is a malignant disease that affects the bone marrow, lymphatic system, spleen, and blood-forming organs, leading to an excessive proliferation of white blood cells. Current cancer treatments are often limited by drug resistance, highlighting the need for novel therapeutic strategies. Nanoparticles, including boron nitride (BN) nanomaterials, have shown promise in enhancing drug delivery and therapeutic efficacy due to their excellent physical and chemical properties. This study aimed to evaluate the cytotoxic effects of hexagonal boron nitride nanoparticles (hBN NPs) on leukemia cells
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22

Sundarabharathi, Lakshmanaperumal, Deepalekshmi Ponnamma, Hemalatha Parangusan, Mahendran Chinnaswamy, and Mariam Al Ali Al-Maadeed. "Effect of anions on the structural, morphological and dielectric properties of hydrothermally synthesized hydroxyapatite nanoparticles." SN Applied Sciences 2, no. 1 (2019). http://dx.doi.org/10.1007/s42452-019-1807-3.

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Abstract Synthetic nano hydroxyapatites (HA) have been considered as potential biomaterials for bone tissue engineering applications because of its excellent biological properties. The present work deals with the synthesis of HA nanoparticles from different anion source materials via autoclave assisted hydrothermal method. All the prepared HA nanoparticles were characterized by X-ray diffraction (XRD), Fourier transformation infrared spectra, field emission scanning electron microscopy, energy dispersive spectra and high resolution transmission electron microscopy. The XRD patterns reveal the
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