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Articles de revues sur le sujet « Organic-Inorganic Hybrid Nanoporous Phosphates »

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Auteur : Grafiati
Publié le 7 septembre 2023

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1

Cave, M. R., David Farrar et Adrian J. Wright. « Organic/Inorganic Hybrid Calcium Phosphate Biomaterials ». Key Engineering Materials 361-363 (novembre 2007) : 383–86. http://dx.doi.org/10.4028/www.scientific.net/kem.361-363.383.

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Calcium alkyl phosphates and their strontium and magnesium analogues were synthesised by the reaction of aqueous metal salts with a range of alkyl phosphates of varying chain length and were characterised by X-ray diffraction, thermogravimetric and FTIR analyses. These hybrid structures are based on alternating organic/metal phosphate regions and were found to exhibit a linear increase in interlayer separation upon increasing the length of the alkyl chain. Our analysis suggests a general formula for these phases of M(ROPO3).nH2O (where M = Ca, Sr, Mg and R = alkyl group), containing alkyl bilayers reminiscent of phospholipid bilayers found in biological membranes.
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2

Li, Ying, Han-Ying Li, Kai-Chi Chang, Hsiu-Mei Lin et Chih-Min Wang. « Recent developments in organic–inorganic hybrid metal phosphates and phosphites ». Dalton Transactions 50, no 29 (2021) : 10014–19. http://dx.doi.org/10.1039/d1dt01016f.

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This frontier article highlights recent advances in synthesis and characterization of organic–inorganic hybrid metal phosphates and phosphites. The synthetic strategies and structural stabilities of hybrid composites blended with stable crystalline compounds are presented.
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3

Stevens, N. S. M., et M. E. Rezac. « Nanoporous organic/inorganic hybrid materials produced from poly(dimethyl siloxane) ». Polymer 40, no 15 (juillet 1999) : 4289–98. http://dx.doi.org/10.1016/s0032-3861(98)00662-4.

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4

Forster, Paul M., et Anthony K. Cheetham. « Hybrid Inorganic–Organic Solids : An Emerging Class of Nanoporous Catalysts ». Topics in Catalysis 24, no 1-4 (octobre 2003) : 79–86. http://dx.doi.org/10.1023/b:toca.0000003079.39312.99.

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Kim, Jae Hoon, Jin Hee An, Young Soo La, Jin Su Jung, Han Mo Jeong, Suck Man Kim, Nam Gu Moon, Byung Wha Lee, Young Ho Yoon et Young Il Choi. « Inorganic–organic hybrid nanoporous materials as adsorbent to remove VOCs ». Journal of Industrial and Engineering Chemistry 14, no 2 (mars 2008) : 194–201. http://dx.doi.org/10.1016/j.jiec.2007.11.003.

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Tsuru, Toshinori, Hiroyasu Kondo, Tomohisa Yoshioka et Masashi Asaeda. « Permeation of nonaqueous solution through organic/inorganic hybrid nanoporous membranes ». AIChE Journal 50, no 5 (2004) : 1080–87. http://dx.doi.org/10.1002/aic.10092.

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7

Yang, Lan, Haruo Naruke et Toshihiro Yamase. « A novel organic/inorganic hybrid nanoporous material incorporating Keggin-type polyoxometalates ». Inorganic Chemistry Communications 6, no 8 (août 2003) : 1020–24. http://dx.doi.org/10.1016/s1387-7003(03)00172-2.

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8

Rao, Katabathini Narasimha, Lee D. Dingwall, Pratibha L. Gai, Adam F. Lee, Stewart J. Tavener, Nigel A. Young et Karen Wilson. « Synthesis and characterization of nanoporous phospho-tungstate organic–inorganic hybrid materials ». Journal of Materials Chemistry 18, no 8 (2008) : 868. http://dx.doi.org/10.1039/b715826b.

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9

Qawasmi, Y., P. Atanasova, T. Jahnke, Z. Burghard, A. Müller, L. Grassberger, R. Strey, J. Bill et T. Sottmann. « Synthesis of nanoporous organic/inorganic hybrid materials with adjustable pore size ». Colloid and Polymer Science 296, no 11 (14 septembre 2018) : 1805–16. http://dx.doi.org/10.1007/s00396-018-4402-z.

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10

Wragg, David S., Gary B. Hix et Russell E. Morris. « Azamacrocycle-Containing Gallium Phosphates : A New Class of Inorganic−Organic Hybrid Material ». Journal of the American Chemical Society 120, no 27 (juillet 1998) : 6822–23. http://dx.doi.org/10.1021/ja9812305.

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11

Nguyen, Cattien V., Kenneth R. Carter, Craig J. Hawker, James L. Hedrick, Richard L. Jaffe, Robert D. Miller, Julius F. Remenar et al. « Low-Dielectric, Nanoporous Organosilicate Films Prepared via Inorganic/Organic Polymer Hybrid Templates ». Chemistry of Materials 11, no 11 (novembre 1999) : 3080–85. http://dx.doi.org/10.1021/cm990114d.

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12

Ishwara, Thilini. « Comparison of TiO 2 Nanoporous Films in Hybrid Organic-inorganic Solar Cells ». Energy Procedia 110 (mars 2017) : 109–14. http://dx.doi.org/10.1016/j.egypro.2017.03.114.

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13

Zhang, Tong, Zhen Zhao, Yao Tang, Jing-Si Liu, Gui-Lin Huang et Xi Liu. « A novel three-dimensional cadmium sulfate-based inorganic-organic hybrid polymer with green photoluminescence ». Zeitschrift für Naturforschung B 76, no 1 (23 décembre 2020) : 79–84. http://dx.doi.org/10.1515/znb-2020-0160.

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Abstract Layer diffusion of 3,5-bis(4-pyridyl)-1H-1,2,4-triazole (BptH) in ethanol on an aqueous solution of cadmium sulfate leads to a novel three-dimensional cadmium sulfate-based inorganic-organic hybrid polymer (IOHP), CdSO4(H2O)(BptH)·1.5H2O (1). Its structure was determined by single-crystal X-ray diffraction (SCXRD), and further characterized by elemental analysis, powder X-ray diffraction (PXRD), infrared spectra (IR), and thermogravimetric (TG) analysis. IOHP 1 exhibits a novel 2-nodal 3,5-connected nanoporous structure formed by BptH ligands connecting 2D neutral inorganic cadmium sulfate layers. Water molecules reside in its nanoporous channels. The thermal stability and solid-state photoluminescence properties of the compound have also been investigated.
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14

Sun, Libo, Zhiqiang Liang et Jihong Yu. « Octavinylsilsesquioxane-based luminescent nanoporous inorganic–organic hybrid polymers constructed by the Heck coupling reaction ». Polymer Chemistry 6, no 6 (2015) : 917–24. http://dx.doi.org/10.1039/c4py01284d.

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A class of luminescent nanoporous inorganic–organic hybrid polymers has been synthesized by the Heck coupling of octavinylsilsesquioxane with aromatic bromide monomers. The resulting materials exhibit porous and luminescent features, and show picric acid sensing behaviour.
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15

Muhammad, Raeesh, Pawan Rekha et Paritosh Mohanty. « Aminal linked inorganic–organic hybrid nanoporous materials (HNMs) for CO2 capture and H2 storage applications ». RSC Advances 6, no 21 (2016) : 17100–17105. http://dx.doi.org/10.1039/c5ra25933a.

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16

Ma, Ying, YangGuang Li, EnBo Wang, Ying Lu, XinLong Wang et XinXin Xu. « Synthesis and characterization of two new inorganic–organic hybrid cobalt molybdenum(V) phosphates ». Journal of Coordination Chemistry 60, no 7 (9 mai 2007) : 719–32. http://dx.doi.org/10.1080/00958970600914705.

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17

Bhanja, Piyali, Yena Kim, Bappi Paul, Jianjian Lin, Saad M. Alshehri, Tansir Ahamad, Yusuf Valentino Kaneti, Asim Bhaumik et Yusuke Yamauchi. « Facile Synthesis of Nanoporous Transition Metal‐Based Phosphates for Oxygen Evolution Reaction ». ChemCatChem 12, no 7 (6 avril 2020) : 2091–96. http://dx.doi.org/10.1002/cctc.201901803.

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18

Zhu, Yun-Pei, Tian-Yi Ma, Ya-Lu Liu, Tie-Zhen Ren et Zhong-Yong Yuan. « Metal phosphonate hybrid materials : from densely layered to hierarchically nanoporous structures ». Inorg. Chem. Front. 1, no 5 (2014) : 360–83. http://dx.doi.org/10.1039/c4qi00011k.

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19

Pekarek, Ryan T., Steven T. Christensen, Jun Liu et Nathan R. Neale. « Energetic effects of hybrid organic/inorganic interfacial architecture on nanoporous black silicon photoelectrodes ». Sustainable Energy & ; Fuels 3, no 7 (2019) : 1660–67. http://dx.doi.org/10.1039/c9se00032a.

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20

Yasukochi, Wataru, Tao Wang, Suguru Kodaira, Sergiy Korposh, Roman Selyanchyn et Seung-Woo Lee. « Ammonia Gas Detection Using an Optically Sensitive Hybrid Organic–Inorganic Multilayer Nanoporous Film ». Advanced Science Letters 19, no 2 (1 février 2013) : 415–19. http://dx.doi.org/10.1166/asl.2013.4733.

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21

Kudo, Eiichi, et Nobuhiro Kihara. « Preparation of Nanoporous Silica Gel Using Oxidatively Degradable Polymer in Organic–Inorganic Hybrid ». Chemistry Letters 48, no 6 (5 juin 2019) : 502–5. http://dx.doi.org/10.1246/cl.190107.

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22

Yang, Ben-hong, Hong-yao Xu, Zhen-zhong Yang et Chao Zhang. « Controllable preparation of ultra-low-dielectric nanoporous silica via inorganic–organic hybrid templates ». Journal of Materials Chemistry 20, no 12 (2010) : 2469. http://dx.doi.org/10.1039/b920893c.

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23

Ikeda, Takuji, Norihito Hiyoshi, Shun-ichi Matsuura, Tetsuya Kodaira, Takuma Nakaoka, Ami Irisa, Miki Kawano et Katsutoshi Yamamoto. « Amphiphilic Organic-Inorganic Hybrid Zeotype Aluminosilicate like a Nanoporous Crystallized Langmuir-Blodgett Film ». Angewandte Chemie International Edition 54, no 27 (27 mai 2015) : 7994–98. http://dx.doi.org/10.1002/anie.201503661.

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Ikeda, Takuji, Norihito Hiyoshi, Shun-ichi Matsuura, Tetsuya Kodaira, Takuma Nakaoka, Ami Irisa, Miki Kawano et Katsutoshi Yamamoto. « Amphiphilic Organic-Inorganic Hybrid Zeotype Aluminosilicate like a Nanoporous Crystallized Langmuir-Blodgett Film ». Angewandte Chemie 127, no 27 (26 mai 2015) : 8105–9. http://dx.doi.org/10.1002/ange.201503661.

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25

Kimura, Reo, Kota Shiba, Kanata Fujiwara, Yanni Zhou, Iori Yamada et Motohiro Tagaya. « Precipitative Coating of Calcium Phosphate on Microporous Silica–Titania Hybrid Particles in Simulated Body Fluid ». Inorganics 11, no 6 (28 mai 2023) : 235. http://dx.doi.org/10.3390/inorganics11060235.

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Titania and silica have been recognized as potential drug delivery system (DDS) carriers. For this application, controllable biocompatibility and the suppression of the initial burst are required, which can be provided by a calcium phosphate (CP) coating. However, it is difficult to control the morphology of a CP coating on the surface of carrier particles owing to the homogeneous nucleation of CP. In this study, we report the development of a CP-coating method that homogeneously corresponds to the shapes of silica–titania (SiTi) porous nanoparticles. We also demonstrate that controlled surface roughness of CP coatings could be achieved in SBF using SiTi nanoparticles with a well-defined spherical shape, a uniform size, and a tunable nanoporous structure. The precipitation of CP was performed on mono-dispersed porous SiTi nanoparticles with different Si/Ti molar ratios and pore sizes. The pore size distribution was found to significantly affect the CP coating in SBF immersion; the surfaces of the nanoparticles with bimodal pore sizes of 0.7 and 1.1–1.2 nm became rough after CP precipitation, while those with a unimodal pore size of 0.7 nm remained smooth, indicating that these two pore sizes serve as different nucleation sites that lead to different surface morphologies.
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26

Yeong, Y. F., A. Z. Abdullah, A. L. Ahmad et S. Bhatia. « Synthesis, Characterization of Phenethyltrimethoxysilane (PE) Modified Organic-Inorganic Hybrid Silicalite-1 Molecular Sieves and its Transformation into Solid Acid Materials ». Advanced Materials Research 47-50 (juin 2008) : 238–41. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.238.

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Organic-inorganic hybrid nanoporous materials with silicalite-1 structure were synthesized in one step co-condensation technique and subsequent transformed into solid acid materials. The tetraethoxysilane (TEOS) was used as the primary inorganic silica source with the phenethyltrimethoxysilane (PE) as an organic modifier. The effect of the PE presence in the initial synthesis mixture was studied by varying the molar ratio of PE to TEOS in the range of 0.05 to 0.20. The resulting organic-inorganic hybrid materials were characterized for its crystallinity (X-ray diffraction, XRD), surface morphology (scanning electron microscopy, SEM) and elemental composition (elemental analysis). The degree of chemical interactions between the organic and inorganic phases was determined by Fourier transform infrared spectroscopy (FTIR). The acid strength of the organic-inorganic hybrid solid acid materials was also obtained by titration technique.
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27

Chen, Yun, Hao Kong, Lei Guo et Gang Wei. « Biomimetic Organic-Inorganic Hybrid Membranes for Removal of Fluoride Ions ». Materials 15, no 10 (11 mai 2022) : 3457. http://dx.doi.org/10.3390/ma15103457.

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Carbon nanofibers (CaNFs) exhibit promising applications in the fields of environmental science and nanotechnology, and self-assembled peptide nanofibers (PNFs) are useful for the biomimetic synthesis of organic-inorganic hybrid nanomaterials and the fabrication of functional hybrid membranes for the removal of various pollutants from water. In this work, we report the biomimetic synthesis of hybrid nanomaterials by the interweaving of CaNFs and PNFs. Using the biomimetic mineralization properties of PNFs, ZrO2 nanoparticles were synthesized along the nanofiber surface, and then functional nanohybrid porous membranes were prepared by the vacuum filtration technology. For the fabrication of membranes, the amount of PNFs and ZrO2 precursors in the hybrid membrane were optimized. The designed organic-inorganic hybrid membranes exhibited high removal performance for fluorine ion (F−) from water, and the removal efficiency of the fabricated membranes towards F− ion-containing aqueous solution with a concentration of 50–100 mg/L reached more than 80%. In addition, the nanofiltration membranes revealed good adsorption capacity for F− ions. It is expected that the strategies shown in this study will be beneficial for the design, biomimetic synthesis, and fabrication of nanoporous membranes for economic, rapid, and efficient water purification.
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28

Zhang, He, Kai Yu, Jing-Hua Lv, Chun-Mei Wang, Chun-Xiao Wang et Bai-Bin Zhou. « Assembly of three organic–inorganic hybrid supramolecular materials based on reduced molybdenum(V) phosphates ». Journal of Solid State Chemistry 217 (septembre 2014) : 22–30. http://dx.doi.org/10.1016/j.jssc.2014.05.010.

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29

Lee, Sejoon, Youngmin Lee, Deuk Young Kim et Gennady N. Panin. « Multicolor Emission from Poly(p-Phenylene)/Nanoporous ZnMnO Organic–Inorganic Hybrid Light-Emitting Diode ». ACS Applied Materials & ; Interfaces 8, no 51 (15 décembre 2016) : 35435–39. http://dx.doi.org/10.1021/acsami.6b11539.

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30

Liu, Chunqing, Nathaniel Naismith, Lei Fu et James Economy. « Novel nanoporous hybrid organic–inorganic silica containing iminodiethanol chelating groups inside the channel pores ». Chem. Commun., no 15 (2003) : 1920–21. http://dx.doi.org/10.1039/b304057g.

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31

Liao, Lei, Xiaojun Bian, Jingjing Xiao, Baohong Liu, Micheál D. Scanlon et Hubert H. Girault. « Nanoporous molybdenum carbide wires as an active electrocatalyst towards the oxygen reduction reaction ». Phys. Chem. Chem. Phys. 16, no 21 (2014) : 10088–94. http://dx.doi.org/10.1039/c3cp54754j.

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A non-precious metal electrocatalyst has been developed for the oxygen reduction reaction based on nanoporous molybdenum carbide (nano-Mo2C) wires through a facile calcination of sub-nanometer periodic organic–inorganic hybrid nanowires.
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32

Pramanik, Malay, Fa-Kuen Shieh, Saad M. Alshehri, Zeid Abdullah Alothman, Kevin C. W. Wu et Yusuke Yamauchi. « Template-free synthesis of nanoporous gadolinium phosphonate as a magnetic resonance imaging (MRI) agent ». RSC Advances 5, no 53 (2015) : 42762–67. http://dx.doi.org/10.1039/c5ra02004b.

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33

Fernandez, S., J. Escobal, J. L. Mesa, J. L. Pizarro, M. I. Arriortua, R. Olazcuaga et T. Rojo. « Evidence on structural, magnetic and spectroscopic sroperties of new Mn(II) inorganic-organic hybrid phosphates ». Journal de Physique IV (Proceedings) 123 (mars 2005) : 237–40. http://dx.doi.org/10.1051/jp4:2005123042.

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34

Sharma, Ruchi, Raeesh Muhammad, Vimal Chandra Srivastava et Paritosh Mohanty. « Heteroatom driven activation and conversion of CO2 using cyclophosphazene based inorganic–organic hybrid nanoporous materials ». Sustainable Energy & ; Fuels 5, no 12 (2021) : 3213–18. http://dx.doi.org/10.1039/d1se00226k.

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35

Ro, Hyun Wook, Kook Ji Kim, Patrick Theato, David W. Gidley et Do Y. Yoon. « Novel Inorganic−Organic Hybrid Block Copolymers as Pore Generators for Nanoporous Ultralow-Dielectric-Constant Films ». Macromolecules 38, no 3 (février 2005) : 1031–34. http://dx.doi.org/10.1021/ma048353w.

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36

Dizhbite, T., N. Mironova-Ulmane, A. Volperts, A. Andersone, L. Jashina, T. Kärner et G. Telysheva. « Elaboration and characterization of organic/inorganic hybrid nanoporous material incorporating Keggin-type Mo-Si polyanions ». Journal of Physics : Conference Series 93 (1 décembre 2007) : 012011. http://dx.doi.org/10.1088/1742-6596/93/1/012011.

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37

Chung, Yeon-Sung, Byunghwan Lee, Kwang-Ho Choo et Sang-June Choi. « Removal of perrhenate anions in aqueous solutions using anion-exchange organic/inorganic hybrid nanoporous beads ». Journal of Industrial and Engineering Chemistry 17, no 1 (janvier 2011) : 114–19. http://dx.doi.org/10.1016/j.jiec.2010.12.007.

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38

Zhang, He, Kai Yu, Jing-Hua Lv, Chun-Mei Wang, Chun-Xiao Wang et Bai-Bin Zhou. « ChemInform Abstract : Assembly of Three Organic-Inorganic Hybrid Supramolecular Materials Based on Reduced Molybdenum(V) Phosphates. » ChemInform 45, no 36 (21 août 2014) : no. http://dx.doi.org/10.1002/chin.201436017.

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39

Piticescu, Roxana M., Gabrielle Charlotte Chitanu, Aurelia Meghea, Maria Giurginca, Gabriela Negroiu et Laura Madalina Popescu. « Comparative Study of In Situ Interactions between Maleic Anhydride Based Copolymers with Hydroxyl Apatite ». Key Engineering Materials 361-363 (novembre 2007) : 387–90. http://dx.doi.org/10.4028/www.scientific.net/kem.361-363.387.

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A comparative study of the in situ interactions between different maleic anhydride based copolymers and calcium phosphates is presented in this paper. The ability of functional groups of the organic polymers to form under high pressure and low temperatures chemical bonds with the inorganic phase leading to improved properties of hybrid nanostructured material is discussed. The open challenges of new hybrid nanocomposites in the field of biomedical materials are evaluated. The challenge to use these nanostructured materials in medical field was evaluated by mapping the interface reactions between hybrid active layers and cells.
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40

Pawlak, Tomasz, Anna Kowalewska, Bożena Zgardzińska et Marek J. Potrzebowski. « Structure, Dynamics, and Host–Guest Interactions in POSS Functionalized Cross-Linked Nanoporous Hybrid Organic–Inorganic Polymers ». Journal of Physical Chemistry C 119, no 47 (11 novembre 2015) : 26575–87. http://dx.doi.org/10.1021/acs.jpcc.5b08868.

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41

Elayappan, Vijayakumar, Pragati A. Shinde, Ganesh Kumar Veerasubramani, Seong Chan Jun, Hyun Sung Noh, Kihyun Kim, Minkyung Kim et Haigun Lee. « Metal–organic-framework-derived hierarchical Co/CoP-decorated nanoporous carbon polyhedra for robust high-energy storage hybrid supercapacitors ». Dalton Transactions 49, no 4 (2020) : 1157–66. http://dx.doi.org/10.1039/c9dt04522h.

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Electrode materials exhibiting nanostructural design, high surface area, tunable pore size, and efficient ion diffusion/transportation are essential for achieving improved electrochemical performance.
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42

Valle, Karine, Franck Pereira, Frederic Rambaud, Philippe Belleville, Christel Laberty et Clément Sanchez. « Hybrid Membranes for Proton Exchange Fuel Cell ». Advances in Science and Technology 72 (octobre 2010) : 265–70. http://dx.doi.org/10.4028/www.scientific.net/ast.72.265.

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Fuel cell technology has merged in recent years as a keystone for future energy supply. The proton exchange membrane fuel cell (PEMFC) is one of the most promising projects of this energy technology program; the PEMFC is made of a conducting polymer that usually operates at temperatures in the range 20-80°C. In order to reach high energy consumption application like transportation, the using temperatures need to be increased above 100°C. Sol-gel organic/inorganic hybrids have been evaluated as materials for membranes to full file the high temperature using requirement. These new materials for membrane need to retain water content and therefore proton conductivity property with using temperature and time. The membranes also need to be chemical-resistant to strong acidic conditions and to keep their mechanical properties regarding stacking requirements. In order to! answer all these specifications, the proposed hybrid membranes are based on nanoporous inorganic phase embedded in an organic polymer in which chemical grafting and conductivity network microstructure are optimized to preserve both water-uptake and proton conductivity at higher temperatures. Such very promising results on these new hybrids are presented and discussed regarding electrochemical properties/microstructure
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43

Gao, Qingsheng, Chenxi Zhang, Songhai Xie, Weiming Hua, Yahong Zhang, Nan Ren, Hualong Xu et Yi Tang. « Synthesis of Nanoporous Molybdenum Carbide Nanowires Based on Organic−Inorganic Hybrid Nanocomposites with Sub-Nanometer Periodic Structures ». Chemistry of Materials 21, no 23 (8 décembre 2009) : 5560–62. http://dx.doi.org/10.1021/cm9014578.

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44

Zhang, Xuehua, Wenxiu Que, Jiaxing Hu, Jin Chen, Jin Zhang et Weiguo Liu. « Fabrication of Nanoporous Arrays from Photosensitive Organic–Inorganic Hybrid Materials by Using an UV Soft Nanoimprint Technique ». Journal of Nanoscience and Nanotechnology 13, no 2 (1 février 2013) : 1241–45. http://dx.doi.org/10.1166/jnn.2013.6111.

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45

Rocha, João, Fa-Nian Shi, Filipe A Almeida Paz, Luís Mafra, Mariana Sardo, Luís Cunha-Silva, James Chisholm, Paulo Ribeiro-Claro et Tito Trindade. « 3D-2D-0D Stepwise Deconstruction of a Water Framework Templated by a Nanoporous Organic-Inorganic Hybrid Host ». Chemistry - A European Journal 16, no 26 (11 juin 2010) : 7741–49. http://dx.doi.org/10.1002/chem.201000431.

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46

Dziuba, Kamil, Krystyna Wnuczek, Patryk Wojtachnio, Rodolphe Sonnier et Beata Podkościelna. « New Polymer Composites with Aluminum Phosphates as Hybrid Flame Retardants ». Materials 16, no 1 (2 janvier 2023) : 426. http://dx.doi.org/10.3390/ma16010426.

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Polymeric aluminum organophosphates are a class of nanostructured aluminum-based compounds that can be considered organic and inorganic hybrid materials. Aluminum phosphates have attracted considerable interest due to their ability to enhance composite materials’ mechanical characteristics, lightweight, and thermal properties. Extensive studies have shown the potential of aluminum organophosphates as a component in the development of fire-retardant materials. Aluminum–organophosphorus hybrid (APH) materials have been prepared by reacting aluminum oxide hydroxide (boehmite) with alkyl and aryl phosphoric acids and used to prepare composites with epoxy resin. Boehmite is an aluminum oxide hydroxide (γ-AlO(OH)) mineral, a component of the aluminum ore bauxite. In this work, the composites based on epoxy resin Epidian 601 and commercial curing agent IDA were obtained. Pure boehmite and APH hybrids were added as flame retardants. FTIR and TGA analysis showed that obtained APH possesses a hybrid structure, high thermostability, and various morphologies. These new APH were incorporated into epoxy resin. The infrared spectroscopy confirmed the structure of hybrids and composites. Pyrolysis combustion flow calorimetry (PCFC) and cone calorimeter analyses were performed to assess the flame retardant properties of the composites. The results showed that the incorporation of 17 wt% APH allows a reduction of heat release rate but to a limited extent in comparison to pure boehmite, which is due to the different decomposition mechanisms of both boehmite and hybrids. The cone calorimetry test showed that residue contents correspond quite well to the mineral fraction from boehmite only. The hybrid APHs appear no more efficient than pure boehmite because the mineral fraction in APH is reduced while phosphate fraction cannot promote significant charring.
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Radev, Lachezar, Maria Fernandes, Isabel Salvado et Daniela Kovacheva. « Organic/Inorganic bioactive materials Part III : in vitro bioactivity of gelatin/silicocarnotite hybrids ». Open Chemistry 7, no 4 (1 décembre 2009) : 721–30. http://dx.doi.org/10.2478/s11532-009-0078-z.

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AbstractIn this work we present our experimental results on synthesis, structure evolution and in vitro bioactivity assessment of new gelatin/silicocarnotite hybrid materials. The hybrids were obtained by diluting gelatin (G) and silicocarnotite (S) ceramic powder with G:S ratios of 75:25 and 25:75 wt.% in hot (40°C) water. The hybrids were characterized using XRD, FTIR, SEM/EDS and XPS. FTIR depicts that the “red shift” of amide I and COO− could be attributed to the fact that the gelatin prefers to chelate Ca2+ from S. The growth of calcium phosphates on the surface of the hybrids synthesized and then immersed in 1.5 SBF for 3 days was studied by using of FTIR, XRD and SEM/EDS. According to FTIR results, after an immersion of 3 days, A and B-type CO3HA can be observed on the surface. XRD results indicate the presence of hydroxyapatite with well defined crystallinity. SEM/EDS of the precipitated layers show the presence of CO3HA and amorphous calcium phosphate on the surface of samples with different G/S content when immersed in 1.5 SBF. XPS of the G/S hybrid with 25:75 wt.% proved the presence of Ca-deficient hydroxyapatite after an in vitro test for 3 days.
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Bonchev, Alexander, Marin Simeonov, Pavletta Shestakova, Radosveta Vasileva, Rositsa Titorenkova, Anton Apostolov, Elena Dyulgerova et Elena Vassileva. « Bioinspired Remineralization of Artificial Caries Lesions Using PDMAEMA/Carbomer/Calcium Phosphates Hybrid Microgels ». Gels 8, no 10 (21 octobre 2022) : 681. http://dx.doi.org/10.3390/gels8100681.

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Dental caries remains one of the most prevalent bacterium-caused chronic diseases affecting both adults and children worldwide. The development of new materials for enhancing its remineralization is one of the most promising approaches in the field of advanced dental materials as well as one of the main challenges in non-invasive dentistry. The aim of the present study is to develop novel hybrid materials based on (PDMAEMA)/Carbomer 940 microgels with in situ deposited calcium phosphates (CaP) and to reveal their potential as a remineralization system for artificial caries lesions. To this purpose, novel PDMAEMA/Carbomer 940 microgels were obtained and their core–shell structure was revealed by transmission electron microscopy (TEM). They were successfully used as a matrix for in situ calcium phosphate deposition, thus giving rise to novel hybrid microgels. The calcium phosphate phases formed during the deposition process were studied by X-ray diffraction and infrared spectroscopy, however, due to their highly amorphous nature, the nuclear magnetic resonance (NMR) was the method that was able to provide reliable information about the formed inorganic phases. The novel hybrid microgels were used for remineralization of artificial caries lesions in order to prove their ability to initiate their remineralization. The remineralization process was followed by scanning electron microscopy (SEM), X-ray diffraction, infrared and Raman spectroscopies and all these methods confirmed the successful enamel rod remineralization upon the novel hybrid microgel application. Thus, the study confirmed that novel hybrid microgels, which could ensure a constant supply of calcium and phosphate ions, are a viable solution for early caries treatment.
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Kanie, Kiyoshi, et Atsushi Muramatsu. « Organic−Inorganic Hybrid Liquid Crystals : Thermotropic Mesophases Formed by Hybridization of Liquid-Crystalline Phosphates and Monodispersed α-Fe2O3Particles ». Journal of the American Chemical Society 127, no 33 (août 2005) : 11578–79. http://dx.doi.org/10.1021/ja054232f.

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Muhammad, Raeesh, et Paritosh Mohanty. « Iodine sequestration using cyclophosphazene based inorganic-organic hybrid nanoporous materials : Role of surface functionality and pore size distribution ». Journal of Molecular Liquids 283 (juin 2019) : 58–64. http://dx.doi.org/10.1016/j.molliq.2019.03.053.

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