1
|
Suliman Al Ebraheem J, Ahmad Alkhoder MN, Tulaimat RH. "Synthesis and characterization of mesoporous V-Mo-MCM-41 nanocatalysts: Enhancing efficiency in oxalic acid synthesis". Heliyon 2024; 10:e24652. [PMID: 38312655 PMCID: PMC10835253 DOI: 10.1016/j.heliyon.2024.e24652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 02/06/2024] Open
Abstract
Mesoporous V-Mo-MCM-41 nano molecular sieves were synthesized via the direct hydrothermal method, employing tetraethyl orthosilicate (TEOS) as a silica source and cetyltrimethylammonium bromide (CTAB) as a surfactant template. Comprehensive characterization through N2-adsorption (BET), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDX) confirmed the mesoporous nature of the catalysts, revealing variations in specific surface area and a significant pore diameter of 6.3 nm, enhancing their versatility for various chemical transformations. The nanoscale structure was further validated through XRD analysis and SEM images. The catalytic efficiency of V-Mo-MCM-41 was demonstrated by synthesizing oxalic acid from molasses, and a response surface methodology (RSM) study on four key variables revealed a maximum yield of 83 % within 1 h using minimal sulfuric acid, showcasing the effectiveness of the prepared catalysts.
Collapse
Affiliation(s)
| | | | - Reem Hani Tulaimat
- Department of Chemistry, Faculty of Science, Albaath University, Homs, Syria
| |
Collapse
|
2
|
Guselnikova O, Lim H, Na J, Eguchi M, Kim HJ, Elashnikov R, Postnikov P, Svorcik V, Semyonov O, Miliutina E, Lyutakov O, Yamauchi Y. Enantioselective SERS sensing of pseudoephedrine in blood plasma biomatrix by hierarchical mesoporous Au films coated with a homochiral MOF. Biosens Bioelectron 2021; 180:113109. [PMID: 33677356 DOI: 10.1016/j.bios.2021.113109] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 01/05/2021] [Accepted: 02/19/2021] [Indexed: 11/30/2022]
Abstract
Here, we present a new family of hierarchical porous hybrid materials as an innovative tool for ultrasensitive and selective sensing of enantiomeric drugs in complex biosamples via chiral surface-enhanced Raman spectroscopy (SERS). Hierarchical porous hybrid films were prepared by the combination of mesoporous plasmonic Au films and microporous homochiral metal-organic frameworks (HMOFs). The proposed hierarchical porous substrates enable extremely low limit of detection values (10-12 M) for pseudoephedrine in undiluted blood plasma due to dual enhancement mechanisms (physical enhancement by the mesoporous Au nanostructures and chemical enhancement by HMOF), chemical recognition by HMOF, and a discriminant function for bio-samples containing large biomolecules, such as blood components. We demonstrate the effect of each component (mesoporous Au and microporous AlaZnCl (HMOF)) on the analytical performance for sensing. The growth of AlaZnCl leads to an increase in the SERS signal (by around 17 times), while the use of mesoporous Au leads to an increase in the signal (by up to 40%). In the presence of a complex biomatrix (blood serum or plasma), the hybrid hierarchical porous substrate provides control over the transport of the molecules inside the pores and prevents blood protein infiltration, provoking competition with existing plasmonic materials at the limit of detection and enantioselectivity in the presence of a multicomponent biomatrix.
Collapse
Affiliation(s)
- Olga Guselnikova
- Department of Solid State Engineering, University of Chemistry and Technology, 16628, Prague, Czech Republic; Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634049, Tomsk, Russian Federation.
| | - Hyunsoo Lim
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia; New & Renewable Energy Research Center, Korea Electronics Technology Institute (KETI), 25, Saenari-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13509, Republic of Korea
| | - Jongbeom Na
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Miharu Eguchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia; JST-ERATO Yamauchi Materials Space-Tectonics Project and International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Hyun-Jong Kim
- Surface Technology Group, Korea Institute of Industrial Technology (KITECH), Incheon, 21999, Republic of Korea
| | - Roman Elashnikov
- Department of Solid State Engineering, University of Chemistry and Technology, 16628, Prague, Czech Republic
| | - Pavel Postnikov
- Department of Solid State Engineering, University of Chemistry and Technology, 16628, Prague, Czech Republic; Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634049, Tomsk, Russian Federation
| | - Vaclav Svorcik
- Department of Solid State Engineering, University of Chemistry and Technology, 16628, Prague, Czech Republic
| | - Oleg Semyonov
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634049, Tomsk, Russian Federation
| | - Elena Miliutina
- Department of Solid State Engineering, University of Chemistry and Technology, 16628, Prague, Czech Republic; Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634049, Tomsk, Russian Federation
| | - Oleksiy Lyutakov
- Department of Solid State Engineering, University of Chemistry and Technology, 16628, Prague, Czech Republic; Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634049, Tomsk, Russian Federation
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia; JST-ERATO Yamauchi Materials Space-Tectonics Project and International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
| |
Collapse
|
3
|
Hemdan BA, El Nahrawy AM, Mansour AFM, Hammad ABA. Green sol-gel synthesis of novel nanoporous copper aluminosilicate for the eradication of pathogenic microbes in drinking water and wastewater treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:9508-9523. [PMID: 30729438 DOI: 10.1007/s11356-019-04431-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
We used a green sol-gel synthesis method to fabricate a novel nanoporous copper aluminosilicate (CAS) material. Nanoporous CAS was characterized using X-ray powder diffraction (XRD), field emission transmission and scanning electron microscopies (FE-TEM/FE-SEM), Fourier transform infrared (FTIR) spectroscopy, and optical analyses. The CAS was also evaluated for use as a promising disinfectant for the inactivation of waterborne pathogens. The antimicrobial action and minimum inhibitory concentration (MIC) of this CAS disinfectant were determined against eight microorganisms (Escherichia coli, Salmonella enterica, Pseudomonas aeruginosa, Listeria monocytogenes, Staphylococcus aureus, Enterococcus faecalis, Candida albicans, and Aspergillus niger). An antimicrobial susceptibility testing of CAS was measured. Results of disc diffusion method pointed out that the diameters of the zone using well diffusion were wider than disc diffusion methods, and the findings also showed that the MIC of the CAS disinfectant against E. coli, S. enterica, and P. aeruginosa was 100 mg/L within 20 min of contact time. Meanwhile, the MIC of the CAS disinfectant was 100 mg/L within 40 min of contact time for the other strains. The efficacy of antimicrobial action (100%) reached within 20 to 40 min against all tested microbes. Herein, the antimicrobial susceptibility testing of CAS disinfectant showed no toxicity for human and bacterial cells. It can be concluded that nanoporous CAS is a promising, economically, and worthy weapon for water disinfection.
Collapse
Affiliation(s)
- Bahaa Ahmed Hemdan
- Water Pollution Research Department, Environmental Research Division, National Research Centre, 33 El-Bohouth St., Dokki, Giza, 12622, Egypt.
| | - Amany Mohamed El Nahrawy
- Solid-State Physics Department, Physics Research Division, National Research Centre, 33 El-Bohouth St., Dokki, Giza, 12622, Egypt
| | - Abdel-Fatah M Mansour
- Solid-State Physics Department, Physics Research Division, National Research Centre, 33 El-Bohouth St., Dokki, Giza, 12622, Egypt
| | - Ali Belal Abou Hammad
- Solid-State Physics Department, Physics Research Division, National Research Centre, 33 El-Bohouth St., Dokki, Giza, 12622, Egypt
| |
Collapse
|
4
|
Jabariyan S, Zanjanchi MA, Arvand M, Sohrabnezhad S. Colorimetric detection of glucose using lanthanum-incorporated MCM-41. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 203:294-300. [PMID: 29879644 DOI: 10.1016/j.saa.2018.04.044] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 04/11/2018] [Accepted: 04/22/2018] [Indexed: 05/14/2023]
Abstract
In this study, lanthanum-containing mesoporous MCM-41 (La-MCM-41) with different amount of lanthanum were synthesized and were used for colorimetric detection of glucose. As prepared La-MCM-41 were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The quantitative amounts of incorporated lanthanum into MCM-41 structure were estimated by energy dispersive X-ray spectrometry. The prepared La-MCM-41 provided high intrinsic peroxidase-like activity in the presence of peroxidise 3,3',5,5'-tetramethylbenzidine (TMB) and H2O2 for accurate determination of glucose. This process produced a blue color in aqueous solution that directly relates to H2O2 concentration. The effect of different parameters such as the content of incorporated lanthanum, pH, temperature and time of reaction on the peroxidase-like activity was studied. The colorimetric detection of H2O2 was led to a linear dynamic range from 50 to 1000 μM (r2 = 0.9988) and low detection limit of 37.5 μM for glucose in aqueous solution. These results are comparable (close to) or better than some previous reports. Thus, La-MCM-41 can be used as admirable alternative design for colorimetric sensing of glucose.
Collapse
Affiliation(s)
- Shaghayegh Jabariyan
- Department of Chemistry, Faculty of Science, University of Guilan, P.O. Box 1914, Rasht 41335, Iran.
| | - Mohammad A Zanjanchi
- Department of Chemistry, Faculty of Science, University of Guilan, P.O. Box 1914, Rasht 41335, Iran.
| | - Majid Arvand
- Department of Chemistry, Faculty of Science, University of Guilan, P.O. Box 1914, Rasht 41335, Iran
| | - Shabnam Sohrabnezhad
- Department of Chemistry, Faculty of Science, University of Guilan, P.O. Box 1914, Rasht 41335, Iran
| |
Collapse
|
5
|
Palai YN, Anjali K, Sakthivel A, Ahmed M, Sharma D, Badamali SK. Cerium Ions Grafted on Functionalized Mesoporous SBA-15 Molecular Sieves: Preparation and Its Catalytic Activity on p-Cresol Oxidation. Catal Letters 2017. [DOI: 10.1007/s10562-017-2238-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
6
|
Hydrodeoxygenation of vanillin using palladium on mesoporous KIT-6 in vapour phase reactor. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.04.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
7
|
Colorimetric-based Detection of TNT Explosives Using Functionalized Silica Nanoparticles. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.protcy.2017.04.128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
8
|
Idros N, Ho MY, Pivnenko M, Qasim MM, Xu H, Gu Z, Chu D. Colorimetric-based detection of TNT explosives using functionalized silica nanoparticles. SENSORS 2015; 15:12891-905. [PMID: 26046595 PMCID: PMC4507664 DOI: 10.3390/s150612891] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/29/2015] [Accepted: 06/01/2015] [Indexed: 01/11/2023]
Abstract
This proof-of-concept study proposes a novel sensing mechanism for selective and label-free detection of 2,4,6-trinitrotoluene (TNT). It is realized by surface chemistry functionalization of silica nanoparticles (NPs) with 3-aminopropyl-triethoxysilane (APTES). The primary amine anchored to the surface of the silica nanoparticles (SiO2-NH2) acts as a capturing probe for TNT target binding to form Meisenheimer amine–TNT complexes. A colorimetric change of the self-assembled (SAM) NP samples from the initial green of a SiO2-NH2 nanoparticle film towards red was observed after successful attachment of TNT, which was confirmed as a result of the increased separation between the nanoparticles. The shift in the peak wavelength of the reflected light normal to the film surface (λpeak) and the associated change of the peak width were measured, and a merit function taking into account their combined effect was proposed for the detection of TNT concentrations from 10−12 to 10−4 molar. The selectivity of our sensing approach is confirmed by using TNT-bound nanoparticles incubated in AptamerX, with 2,4-dinitrotoluene (DNT) and toluene used as control and baseline, respectively. Our results show the repeatable systematic color change with the TNT concentration and the possibility to develop a robust, easy-to-use, and low-cost TNT detection method for performing a sensitive, reliable, and semi-quantitative detection in a wide detection range.
Collapse
Affiliation(s)
- Noorhayati Idros
- Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, UK.
- Institute of Nano Electronic Engineering (INEE), Universiti Malaysia Perlis (UniMAP), Lot 106, 108 & 110, Tingkat 1, Block A, Taman Pertiwi Indah, Jalan Kangar-Alor Setar, Seriab 01000 Kangar, Perlis, Malaysia.
| | - Man Yi Ho
- Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, UK.
- Schlumberger Cambridge Research, High Cross, Madingley Road, Cambridge CB3 0EL, UK.
| | - Mike Pivnenko
- Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, UK.
| | - Malik M Qasim
- Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, UK.
| | - Hua Xu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Sipailou 2, Nanjing 210096, China.
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Sipailou 2, Nanjing 210096, China.
| | - Daping Chu
- Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, UK.
| |
Collapse
|
9
|
Collard X, Louette P, Fiorilli S, Aprile C. High surface area zincosilicates as efficient catalysts for the synthesis of ethyl lactate: an in-depth structural investigation. Phys Chem Chem Phys 2015; 17:26756-65. [DOI: 10.1039/c5cp03577e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel extra-small Zn-MCM-41 mesoporous materials were successfully prepared following a straightforward synthesis route. The insertion of zinc as single site species was investigated for the first time using XPS via the Auger parameter in a Wagner plot representation. The XPS findings resulted in excellent agreement with IR analysis.
Collapse
Affiliation(s)
- Xavier Collard
- Unit of Nanomaterial Chemistry (CNano)
- Department of Chemistry
- University of Namur (UNamur)
- Rue de Bruxelles 61
- 5000 Namur
| | - Pierre Louette
- Department of Physics
- Research Center in Physics of Matter and Radiation (PMR)
- University of Namur (UNamur)
- 5000 Namur
- Belgium
| | - Sonia Fiorilli
- Department of Applied Science and Technology
- Politecnico di Torino
- Institute of Chemistry
- Corso Duca degli Abruzzi, 24
- 10129 Torino
| | - Carmela Aprile
- Unit of Nanomaterial Chemistry (CNano)
- Department of Chemistry
- University of Namur (UNamur)
- Rue de Bruxelles 61
- 5000 Namur
| |
Collapse
|
10
|
Ren Y, Ma Z, Dai S. Nanosize Control on Porous β-MnO₂ and Their Catalytic Activity in CO Oxidation and N₂O Decomposition. MATERIALS 2014; 7:3547-3556. [PMID: 28788635 PMCID: PMC5453201 DOI: 10.3390/ma7053547] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 03/27/2014] [Accepted: 04/29/2014] [Indexed: 11/16/2022]
Abstract
A major challenge in the synthesis of porous metal oxides is the control of pore size and/or wall thickness that may affect the performance of these materials. Herein, nanoporous β-MnO₂ samples were prepared using different hard templates, e.g., ordered mesoporous silica SBA-15 and KIT-6, disordered mesoporous silica, and colloidal silica. These samples were characterized by Powder X-Ray Diffraction (PXRD), Transmission Electron Microscopy (TEM), and N₂ adsorption-desorption. The pore size distribution of β-MnO₂ was tuned by the different hard templates and their preparation details. Catalytic activities in CO oxidation and N₂O decomposition were tested and the mesoporous β-MnO₂ samples demonstrated superior catalytic activities compared with their bulk counterpart.
Collapse
Affiliation(s)
- Yu Ren
- National Institute of Clean-and-low-carbon Energy, Beijing 102211, China.
- School of Chemistry and EaStChem, University of St Andrews, St Andrews, Fife KY 16 9ST, UK.
| | - Zhen Ma
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
| |
Collapse
|
11
|
Li XS, Pan YN, Zhao Y, Yuan BF, Guo L, Feng YQ. Preparation of titanium-grafted magnetic mesoporous silica for the enrichment of endogenous serum phosphopeptides. J Chromatogr A 2013; 1315:61-9. [PMID: 24090595 DOI: 10.1016/j.chroma.2013.09.057] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Revised: 09/11/2013] [Accepted: 09/16/2013] [Indexed: 01/03/2023]
Abstract
As one of the most important post-translational modifications, reversible phosphorylation of protein plays crucial roles in a large number of biological processes. Moreover, endogenous phosphopeptides are also associated with certain human diseases. An efficient enrichment and separation method is the premise for successful identification and quantification of phosphopeptides. In this work, titanium grafted magnetic mesoporous silica (Fe3O4@Ti-mSiO2) was developed and applied for the enrichment of endogenous phosphopeptides. Fe3O4@Ti-mSiO2 particles were prepared by grafting titanocene dichloride on the inner walls of magnetic mesoporous silica and then being calcined to remove cyclopentadienyl ligand. The physicochemical properties of the prepared materials were characterized by energy dispersive X-ray spectroscopy (EDX), nitrogen adsorption-desorption analysis, X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM). For selective enrichment of phosphopeptides, the prepared Fe3O4@Ti-mSiO2 particles were applied for tryptic digests of β-casein, mixtures of β-casein and bovine serum albumin (BSA), and low-fat milk. Finally, Fe3O4@Ti-mSiO2 was successfully applied for the enrichment of endogenous phosphopeptides from human serum.
Collapse
Affiliation(s)
- Xiao-Shui Li
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
| | | | | | | | | | | |
Collapse
|
12
|
Investigation of the optical property and photocatalytic activity of mixed phase nanocrystalline titania. APPLIED NANOSCIENCE 2013. [DOI: 10.1007/s13204-013-0264-3] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
13
|
Andreou I, Amenitsch H, Likodimos V, Falaras P, Koutsoukos PG, Leontidis E. Organized Silica Films Generated by Evaporation-Induced Self-Assembly as Hosts for Iron Oxide Nanoparticles. MATERIALS 2013; 6:1467-1484. [PMID: 28809221 PMCID: PMC5452312 DOI: 10.3390/ma6041467] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 03/26/2013] [Accepted: 03/27/2013] [Indexed: 11/25/2022]
Abstract
In this work, we prepared oriented mesoporous thin films of silica on various solid substrates using the pluronic block copolymer P123 as a template. We attempted to insert guest iron oxide (FexOy) nanoparticles into these films by two different methods: (a) by co-precipitation—where iron precursors are introduced in the synthesis sol before deposition of the silica film—and subsequent oxide production during the film calcination step; (b) by preparing and calcining the silica films first then impregnating them with the iron precursor, obtaining the iron oxide nanoparticles by a second calcination step. We have examined the structural effects of the guest nanoparticles on the silica film structures using grazing incidence X-ray scattering (GISAXS), high-resolution transmission electron spectroscopy (HRTEM), spectroscopic ellipsometry, X-ray photoelectron spectroscopy (XPS), and Raman microscopy. Formation of nanoparticles by co-precipitation may induce substantial changes in the film structure leading, in our adopted process, to the appearance of lamellar ordering in the calcination stage. On the contrary, impregnation-based approaches perturb the film structures much more weakly, but are also less efficient in filling the pores with nanoparticles.
Collapse
Affiliation(s)
- Ioanna Andreou
- Department of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, Cyprus.
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayergasse 9/4, 8010 Graz, Austria.
| | - Vlassis Likodimos
- Institute of Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems (IAMPPNM), Division of Physical Chemistry, National Center for Scientific Research "Demokritos", Aghia Paraskevi Attikis, Athens 153 10, Greece.
| | - Polycarpos Falaras
- Institute of Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems (IAMPPNM), Division of Physical Chemistry, National Center for Scientific Research "Demokritos", Aghia Paraskevi Attikis, Athens 153 10, Greece.
| | - Petros G Koutsoukos
- Department of Chemical Engineering, University of Patras, P.O. Box 1414, Patras 265 00, Greece.
| | | |
Collapse
|
14
|
Pradhan AC, Varadwaj GBB, Parida KM. Facile fabrication of mesoporous iron modified Al2O3 nanoparticles pillared montmorillonite nanocomposite: a smart photo-Fenton catalyst for quick removal of organic dyes. Dalton Trans 2013; 42:15139-49. [DOI: 10.1039/c3dt51952j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
Coelho JV, Guedes MS, Barrera D, Sapag K, Pereira MC, Oliveira LCAD. Controlling the morphology and pore size of mesostructured silica nanoparticles: the role of the iron oxidation state. Dalton Trans 2013; 42:11271-80. [DOI: 10.1039/c3dt50794g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Xu W, Riikonen J, Lehto VP. Mesoporous systems for poorly soluble drugs. Int J Pharm 2012; 453:181-97. [PMID: 22990124 DOI: 10.1016/j.ijpharm.2012.09.008] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 08/31/2012] [Accepted: 09/03/2012] [Indexed: 01/13/2023]
Abstract
Utilization of inorganic mesoporous materials in formulations of poorly water-soluble drugs to enhance their dissolution and permeation behavior is a rapidly growing area in pharmaceutical materials research. The benefits of mesoporous materials in drug delivery applications stem from their large surface area and pore volume. These properties enable the materials to accommodate large amounts of payload molecules, protect them from premature degradation, and promote controlled and fast release. As carriers with various morphologies and chemical surface properties can be produced, these materials may even promote adsorption from the gastrointestinal tract to the systemic circulation. The main concern regarding their clinical applications is still the safety aspect even though most of them have been reported to be safely excreted, and a rather extensive toxicity screening has already been conducted with the most frequently studied mesoporous materials. In addition, the production of the materials on a large scale and at a reasonable cost may be a challenge when considering the utilization of the materials in industrial processes. However, if mesoporous materials could be employed in the industrial crystallization processes to produce hybrid materials with poorly soluble compounds, and hence to enhance their oral bioavailability, this might open new avenues for the pharmaceutical industry to employ nanotechnology in their processes.
Collapse
Affiliation(s)
- Wujun Xu
- Department of Applied Physics, University of Eastern Finland, POB 1627, FI-70211 Kuopio, Finland
| | | | | |
Collapse
|
17
|
Jabariyan S, Zanjanchi MA. A simple and fast sonication procedure to remove surfactant templates from mesoporous MCM-41. ULTRASONICS SONOCHEMISTRY 2012; 19:1087-1093. [PMID: 22342402 DOI: 10.1016/j.ultsonch.2012.01.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2011] [Revised: 01/19/2012] [Accepted: 01/25/2012] [Indexed: 05/31/2023]
Abstract
We demonstrate a sonication procedure for the removal of structure-directing micellar templates from mesoporous MCM-41. The method uses a 28 KHz ultrasound in an alcoholic solvent for disrupting micellar aggregation of the surfactant molecules, cetyltrimethylammonium bromide, which have filled the pores of the as-synthesized MCM-41. The majority (93%) of the surfactant molecules are removed out from the powder MCM-41 within a 15 min one-step sonication at a moderate temperature of 40°C. The structural and textural characterization techniques reveal that the resulted surfactant-free MCM-41 exhibits higher features compared to that of those obtained using the conventional calcinations approaches. The surfactant molecules are released into alcohol and can be recovered for reuse. This study provides an easy, cost-effective, mild and useful method for template removal from mesoporous materials at conventional conditions.
Collapse
|
18
|
Kaper H, Grandjean A, Weidenthaler C, Schüth F, Goettmann F. Surface Diels-Alder Reactions as an Effective Method to Synthesize Functional Carbon Materials. Chemistry 2012; 18:4099-106. [DOI: 10.1002/chem.201102718] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Indexed: 11/06/2022]
|
19
|
Non-surfactant template-directed synthesis of SiO 2
-polyimide hybrid self-standing films with ordered mesoporous structure. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.1779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
20
|
Zasukhin AS, Neudachina LK, Yatluk YG, Adamova LV, Osipova VA, Gorbunova EM, Moskaleva YS, Larina TY. Synthesis and surface structural characteristics of new polysiloxane xerogel. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2011. [DOI: 10.1134/s0036024411030332] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
21
|
Li JG, Kuo SW. Phase behavior of mesoporous nanostructures templated by amphiphilic crystalline–crystalline diblock copolymers of poly(ethylene oxide-b-ε-caprolactone). RSC Adv 2011. [DOI: 10.1039/c1ra00349f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
22
|
Fang QR, Makal TA, Young MD, Zhou HC. RECENT ADVANCES IN THE STUDY OF MESOPOROUS METAL-ORGANIC FRAMEWORKS. COMMENT INORG CHEM 2010. [DOI: 10.1080/02603594.2010.520254] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
23
|
Mesoporous Ti-KIT-6 molecular sieves: Their catalytic activity in the epoxidation of cyclohexene. J Taiwan Inst Chem Eng 2010. [DOI: 10.1016/j.jtice.2010.02.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
24
|
Huang J, He L, Zhang J, Chen L, Su CY. Dynamic functionalised metallogel: An approach to immobilised catalysis with improved activity. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcata.2009.11.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
25
|
Szczech JR, Lukowski MA, Jin S. Synthesis of mesoporous Si1−xGexO2 (0.10 ≤x≤ 0.31) using a nonionic block copolymer template. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm02057e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
26
|
Xu B, Long J, Tian H, Zhu Y, Sun X. Synthesis and characterization of mesoporous γ-alumina templated by saccharide molecules. Catal Today 2009. [DOI: 10.1016/j.cattod.2009.07.059] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
27
|
Effect of hydrothermal treatment on the structure, stability and acidity of Al containing MCM-41 and MCM-48 synthesised at room temperature. Colloids Surf A Physicochem Eng Asp 2007. [DOI: 10.1016/j.colsurfa.2007.05.053] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|