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Numpilai T, Witoon T. Utilizing Gelatin Waste for Efficient Bimodal Porous Silica Adsorbents for Carbon Dioxide Capture. Chempluschem 2024; 89:e202300393. [PMID: 37933503 DOI: 10.1002/cplu.202300393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 11/08/2023]
Abstract
This study explores the modification of pore structures in porous silica materials synthesized using sodium silicate and waste gelatin, under varying silica-to-gelatin ratios. At ratios of 1.0-1.5, bimodal porous silica with mesopores and macropores emerged due to spaces between silica nanoparticles and clusters, following gelatin elimination. The study further evaluated the obtained bimodal porous silica as polyethyleneimine (PEI) supports for CO2 capture, alongside PEI-loaded unimodal porous silica and hollow silica sphere for comparison. Notably, the PEI-loaded bimodal silica showcased superior CO2 uptake, achieving 145.6 mg g-1 at 90 °C. Transmission electron microscopy (TEM) revealed PEI's uniform distribution within the pores of bimodal silica, unlike the excessive surface layering seen in unimodal silica. Conversely, PEI completely filled the hollow porous silica's interior, extending gas molecule diffusion distance. All sorbents displayed nearly constant CO2 adsorption across 20 cycles, demonstrating outstanding stability. Notably, the bimodal porous silica displayed a negligible capacity loss, underscoring its robust performance.
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Affiliation(s)
- Thanapha Numpilai
- Department of Environmental Science, Faculty of Science and Technology, Thammasat University, Pathum Thani, 12120, Thailand
| | - Thongthai Witoon
- Center of Excellence on Petrochemical and Materials Technology, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand
- Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok, 10900, Thailand
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2
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Palvai S, Kpeglo D, Newham G, Peyman SA, Evans SD, Ong ZY. Free-Standing Hierarchically Porous Silica Nanoparticle Superstructures: Bridging the Nano- to Microscale for Tailorable Delivery of Small and Large Therapeutics. ACS Appl Mater Interfaces 2024; 16:5568-5581. [PMID: 38270578 PMCID: PMC10859928 DOI: 10.1021/acsami.3c16463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/13/2023] [Accepted: 01/08/2024] [Indexed: 01/26/2024]
Abstract
Nanoscale colloidal self-assembly is an exciting approach to yield superstructures with properties distinct from those of individual nanoparticles. However, the bottom-up self-assembly of 3D nanoparticle superstructures typically requires extensive chemical functionalization, harsh conditions, and a long preparation time, which are undesirable for biomedical applications. Here, we report the directional freezing of porous silica nanoparticles (PSiNPs) as a simple and versatile technique to create anisotropic 3D superstructures with hierarchical porosity afforded by microporous PSiNPs and newly generated meso- and macropores between the PSiNPs. By varying the PSiNP building block size, the interparticle pore sizes can be readily tuned. The newly created hierarchical pores greatly augment the loading of a small molecule-anticancer drug, doxorubicin (Dox), and a large macromolecule, lysozyme (Lyz). Importantly, Dox loading into both the micro- and meso/macropores of the nanoparticle assemblies not only gave a pore size-dependent drug release but also significantly extended the drug release to 25 days compared to a much shorter 7 or 11 day drug release from Dox loaded into either the micro- or meso/macropores only. Moreover, a unique temporal drug release profile, with a higher and faster release of Lyz from the larger interparticle macropores than Dox from the smaller PSiNP micropores, was observed. Finally, the formulation of the Dox-loaded superstructures within a composite hydrogel induces prolonged growth inhibition in a 3D spheroid model of pancreatic ductal adenocarcinoma. This study presents a facile modular approach for the rapid assembly of drug-loaded superstructures in fully aqueous environments and demonstrates their potential as highly tailorable and sustained delivery systems for diverse therapeutics.
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Affiliation(s)
- Sandeep Palvai
- School
of Physics and Astronomy, University of
Leeds, Leeds LS2 9JT, U.K.
| | - Delanyo Kpeglo
- School
of Physics and Astronomy, University of
Leeds, Leeds LS2 9JT, U.K.
| | - George Newham
- School
of Physics and Astronomy, University of
Leeds, Leeds LS2 9JT, U.K.
| | - Sally A. Peyman
- School
of Physics and Astronomy, University of
Leeds, Leeds LS2 9JT, U.K.
- Leeds
Institute of Medical Research at St James, School of Medicine, University of Leeds, Leeds LS2 9JT, U.K.
| | - Stephen D. Evans
- School
of Physics and Astronomy, University of
Leeds, Leeds LS2 9JT, U.K.
| | - Zhan Yuin Ong
- School
of Physics and Astronomy, University of
Leeds, Leeds LS2 9JT, U.K.
- Leeds
Institute of Medical Research at St James, School of Medicine, University of Leeds, Leeds LS2 9JT, U.K.
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3
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Nieves O, Ortiz de Zárate D, Aznar E, Caballos I, Garrido E, Martínez-Máñez R, Dortu F, Bernier D, Mengual-Chuliá B, López-Labrador FX, Sloth JJ, Loeschner K, Duedahl-Olesen L, Prado N, Hervello M, Menéndez A, Gransee R, Klotzbuecher T, Gonçalves MC, Zare F, Fuentes López A, Fernández Segovia I, Baviera JMB, Salcedo J, Recuero S, Simón S, Fernández Blanco A, Peransi S, Gómez-Gómez M, Griol A. Development of Photonic Multi-Sensing Systems Based on Molecular Gates Biorecognition and Plasmonic Sensors: The PHOTONGATE Project. Sensors (Basel) 2023; 23:8548. [PMID: 37896641 PMCID: PMC10611383 DOI: 10.3390/s23208548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023]
Abstract
This paper presents the concept of a novel adaptable sensing solution currently being developed under the EU Commission-founded PHOTONGATE project. This concept will allow for the quantification of multiple analytes of the same or different nature (chemicals, metals, bacteria, etc.) in a single test with levels of sensitivity and selectivity at/or over those offered by current solutions. PHOTONGATE relies on two core technologies: a biochemical technology (molecular gates), which will confer the specificity and, therefore, the capability to be adaptable to the analyte of interest, and which, combined with porous substrates, will increase the sensitivity, and a photonic technology based on localized surface plasmonic resonance (LSPR) structures that serve as transducers for light interaction. Both technologies are in the micron range, facilitating the integration of multiple sensors within a small area (mm2). The concept will be developed for its application in health diagnosis and food safety sectors. It is thought of as an easy-to-use modular concept, which will consist of the sensing module, mainly of a microfluidics cartridge that will house the photonic sensor, and a platform for fluidic handling, optical interrogation, and signal processing. The platform will include a new optical concept, which is fully European Union Made, avoiding optical fibers and expensive optical components.
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Affiliation(s)
- Oscar Nieves
- Nanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain; (O.N.); (D.O.d.Z.)
| | - David Ortiz de Zárate
- Nanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain; (O.N.); (D.O.d.Z.)
| | - Elena Aznar
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain; (E.A.); (I.C.); (E.G.); (R.M.-M.)
- Unidad Mixta de Investigación en Nanomedicina y Sensores, Instituto de Investigación Sanitaria La Fe (IISLAFE) Avenida Fernando Abril Martorell 106, 46026 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 46022 Valencia, Spain
| | - Isabel Caballos
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain; (E.A.); (I.C.); (E.G.); (R.M.-M.)
- Unidad Mixta de Investigación en Nanomedicina y Sensores, Instituto de Investigación Sanitaria La Fe (IISLAFE) Avenida Fernando Abril Martorell 106, 46026 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 46022 Valencia, Spain
| | - Eva Garrido
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain; (E.A.); (I.C.); (E.G.); (R.M.-M.)
- Unidad Mixta de Investigación en Nanomedicina y Sensores, Instituto de Investigación Sanitaria La Fe (IISLAFE) Avenida Fernando Abril Martorell 106, 46026 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 46022 Valencia, Spain
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain; (E.A.); (I.C.); (E.G.); (R.M.-M.)
- Unidad Mixta de Investigación en Nanomedicina y Sensores, Instituto de Investigación Sanitaria La Fe (IISLAFE) Avenida Fernando Abril Martorell 106, 46026 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 46022 Valencia, Spain
| | - Fabian Dortu
- Multitel, Parc Initialis 2, Rue Pierre et Marie Curie, 7000 Mons, Belgium; (F.D.); (D.B.)
| | - Damien Bernier
- Multitel, Parc Initialis 2, Rue Pierre et Marie Curie, 7000 Mons, Belgium; (F.D.); (D.B.)
| | - Beatriz Mengual-Chuliá
- Virology Laboratory, Genomics and Health Area, Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana, FISABIO-Public Health, Generalitat Valenciana, 46020 Valencia, Spain; (B.M.-C.); (F.X.L.-L.)
| | - F. Xavier López-Labrador
- Virology Laboratory, Genomics and Health Area, Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana, FISABIO-Public Health, Generalitat Valenciana, 46020 Valencia, Spain; (B.M.-C.); (F.X.L.-L.)
- CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Departament de Microbiologia i Ecologia, Facultat de Medicina, Universitat de València, 46010 Valencia, Spain
| | - Jens J. Sloth
- National Food Institute, Technical University of Denmark, Kemitorvet B201, DK-2800 KGS. Lyngby, Denmark; (J.J.S.); (K.L.); (L.D.-O.)
| | - Katrin Loeschner
- National Food Institute, Technical University of Denmark, Kemitorvet B201, DK-2800 KGS. Lyngby, Denmark; (J.J.S.); (K.L.); (L.D.-O.)
| | - Lene Duedahl-Olesen
- National Food Institute, Technical University of Denmark, Kemitorvet B201, DK-2800 KGS. Lyngby, Denmark; (J.J.S.); (K.L.); (L.D.-O.)
| | - Natalia Prado
- Asociación de Investigación de Industrias Cárnicas del Principado de Asturias (ASINCAR), Polígono La Barreda, Calle Solelleros 5, 33180 Noreña, Spain; (N.P.); (M.H.); (A.M.)
| | - Martín Hervello
- Asociación de Investigación de Industrias Cárnicas del Principado de Asturias (ASINCAR), Polígono La Barreda, Calle Solelleros 5, 33180 Noreña, Spain; (N.P.); (M.H.); (A.M.)
| | - Armando Menéndez
- Asociación de Investigación de Industrias Cárnicas del Principado de Asturias (ASINCAR), Polígono La Barreda, Calle Solelleros 5, 33180 Noreña, Spain; (N.P.); (M.H.); (A.M.)
| | - Rainer Gransee
- Fraunhofer IMM, Carl-Zeiss-Str. 18-20, 55129 Mainz, Germany; (R.G.); (T.K.)
| | | | - M. Clara Gonçalves
- Instituto Superior Técnico, CQE, Avenida Rovisco País 1, 1049 001 Lisboa, Portugal; (M.C.G.); (F.Z.)
| | - Fahimeh Zare
- Instituto Superior Técnico, CQE, Avenida Rovisco País 1, 1049 001 Lisboa, Portugal; (M.C.G.); (F.Z.)
| | - Ana Fuentes López
- Departamento de Tecnología de Alimentos, Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural, Universitat Politècnica de València, 46022 Valencia, Spain; (A.F.L.); (J.M.B.B.)
| | - Isabel Fernández Segovia
- Departamento de Tecnología de Alimentos, Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural, Universitat Politècnica de València, 46022 Valencia, Spain; (A.F.L.); (J.M.B.B.)
| | - Jose M. Barat Baviera
- Departamento de Tecnología de Alimentos, Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural, Universitat Politècnica de València, 46022 Valencia, Spain; (A.F.L.); (J.M.B.B.)
| | - Jaime Salcedo
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Sara Recuero
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Santiago Simón
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Ana Fernández Blanco
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Sergio Peransi
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Maribel Gómez-Gómez
- Nanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain; (O.N.); (D.O.d.Z.)
| | - Amadeu Griol
- Nanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain; (O.N.); (D.O.d.Z.)
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4
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Amaraweera SM, Gunathilake CA, Gunawardene OHP, Dassanayake RS, Cho EB, Du Y. Carbon Capture Using Porous Silica Materials. Nanomaterials (Basel) 2023; 13:2050. [PMID: 37513061 PMCID: PMC10383871 DOI: 10.3390/nano13142050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023]
Abstract
As the primary greenhouse gas, CO2 emission has noticeably increased over the past decades resulting in global warming and climate change. Surprisingly, anthropogenic activities have increased atmospheric CO2 by 50% in less than 200 years, causing more frequent and severe rainfall, snowstorms, flash floods, droughts, heat waves, and rising sea levels in recent times. Hence, reducing the excess CO2 in the atmosphere is imperative to keep the global average temperature rise below 2 °C. Among many CO2 mitigation approaches, CO2 capture using porous materials is considered one of the most promising technologies. Porous solid materials such as carbons, silica, zeolites, hollow fibers, and alumina have been widely investigated in CO2 capture technologies. Interestingly, porous silica-based materials have recently emerged as excellent candidates for CO2 capture technologies due to their unique properties, including high surface area, pore volume, easy surface functionalization, excellent thermal, and mechanical stability, and low cost. Therefore, this review comprehensively covers major CO2 capture processes and their pros and cons, selecting a suitable sorbent, use of liquid amines, and highlights the recent progress of various porous silica materials, including amine-functionalized silica, their reaction mechanisms and synthesis processes. Moreover, CO2 adsorption capacities, gas selectivity, reusability, current challenges, and future directions of porous silica materials have also been discussed.
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Affiliation(s)
- Sumedha M Amaraweera
- Department of Manufacturing and Industrial Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Chamila A Gunathilake
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
- Department of Applied Engineering & Technology, College of Aeronautics and Engineering, Kent State University, Kent, OH 44242, USA
| | - Oneesha H P Gunawardene
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Rohan S Dassanayake
- Department of Biosystems Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama 10200, Sri Lanka
| | - Eun-Bum Cho
- Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Yanhai Du
- Department of Applied Engineering & Technology, College of Aeronautics and Engineering, Kent State University, Kent, OH 44242, USA
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Møller A, Schultz HB, Meola TR, Joyce P, Müllertz A, Prestidge CA. The Influence of Blonanserin Supersaturation in Liquid and Silica Stabilised Self-Nanoemulsifying Drug Delivery Systems on In Vitro Solubilisation. Pharmaceutics 2023; 15:pharmaceutics15010284. [PMID: 36678919 PMCID: PMC9864080 DOI: 10.3390/pharmaceutics15010284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Reformulating poorly water-soluble drugs as supersaturated lipid-based formulations achieves higher drug loading and potentially improves solubilisation and bioavailability. However, for the weak base blonanserin, silica solidified supersaturated lipid-based formulations have demonstrated reduced in vitro solubilisation compared to their liquid-state counterparts. Therefore, this study aimed to understand the influence of supersaturated drug load on blonanserin solubilisation from liquid and silica solidified supersaturated self-nanoemulsifying drug delivery systems (super-SNEDDS) during in vitro lipolysis. Stable liquid super-SNEDDS with varying drug loads (90-300% of the equilibrium solubility) were solidified by imbibition into porous silica microparticles (1:1 lipid: silica ratio). In vitro lipolysis revealed greater blonanserin solubilisation from liquid super-SNEDDS compared to solid at equivalent drug saturation levels, owing to strong silica-BLON/lipid interactions, evidenced by a significant decrease in blonanserin solubilisation upon addition of silica to a digesting liquid super-SNEDDS. An increase in solid super-SNEDDS drug loading led to increased solubilisation, owing to the increased drug:silica and drug:lipid ratios. Solidifying SNEDDS with silica enables the fabrication of powdered formulations with higher blonanserin loading and greater stability than liquid super-SNEDDS, however at the expense of drug solubilisation. These competing parameters need careful consideration in designing optimal super-SNEDDS for pre-clinical and clinical application.
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Affiliation(s)
- Amalie Møller
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
- Future Industries Institute, UniSA STEM, Mawson Lakes Campus, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Hayley B. Schultz
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Tahlia R. Meola
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Paul Joyce
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
- Bioneer:FARMA, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Clive A. Prestidge
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
- Correspondence: ; Tel.: +61-8-830-22438
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Meyer R, Mueller K, Naumov S, Bauer F, Enke D. Characterization of polar surface groups on siliceous materials by inverse gas chromatography and the enthalpy-entropy compensation effect. Front Chem 2023; 11:1084046. [PMID: 37065825 PMCID: PMC10098098 DOI: 10.3389/fchem.2023.1084046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 03/17/2023] [Indexed: 04/18/2023] Open
Abstract
Surface-modified porous silica is a well-established composite material. To improve its embedding and application behavior, adsorption studies of various probe molecules have been performed using the technique of inverse gas chromatography (IGC). For this purpose, IGC experiments were carried out in the infinite dilution mode on macro-porous micro glass spheres before and after surface modification with (3-mercaptopropyl)trimethoxysilane. To provide information about the polar interactions between probe molecules and the silica surface, in particular, eleven polar molecules have been injected. In summary, the free surface energy for pristine silica ( γ S t o t a l = 229 mJ/m2) and for (3-mercaptopropyl)trimethoxysilane-modified silica ( γ S t o t a l = 135 mJ/m2) indicates a reduced wettability after surface modification. This is due to the reduction of the polar component of the free surface energy ( γ S S P ) from 191 mJ/m2 to 105 mJ/m2. Simultaneously, with the reduction of surface silanol groups caused by surface modification of silica and, therefore, the decrease in polar interactions, a substantial loss of Lewis acidity was observed by various IGC approaches. Experiments with all silica materials have been conducted at temperatures in the range from 90°C to 120°C to determine the thermodynamic parameters, such as adsorption enthalpy ( Δ H a d s ) and adsorption entropy ( Δ S a d s ), using the Arrhenius regression procedure evaluating the IGC data. With the help of the enthalpy-entropy compensation, two types of adsorption complexes are assumed between polar probe molecules and the silica surface because of different isokinetic temperatures. Identical adsorption complexes with an isokinetic temperature of 370°C have been assigned to alkanes and weakly interacting polar probes such as benzene, toluene, dichloromethane, and chloroform. Polar probe molecules with typical functional groups such as OH, CO, and CN, having the ability to form hydrogen bonds to the silica surface, exhibit a lower isokinetic temperature of 60°C. Quantum chemical calculations of the probe molecules on a non-hydroxylated and hydroxylated silica cluster supported the formation of hydrogen bonds in the case of a strong polar adsorption complex with a bonding distance of 1.7 nm-1.9 nm to the silica surface.
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Affiliation(s)
- Ralf Meyer
- Institute of Chemical Technology, Leipzig University, Leipzig, Germany
- *Correspondence: Ralf Meyer, ; Dirk Enke,
| | - Kai Mueller
- Institute of Chemical Technology, Leipzig University, Leipzig, Germany
| | - Sergej Naumov
- Leibniz Institute of Surface Engineering, Leipzig, Germany
| | - Frank Bauer
- Institute of Chemical Technology, Leipzig University, Leipzig, Germany
| | - Dirk Enke
- Institute of Chemical Technology, Leipzig University, Leipzig, Germany
- *Correspondence: Ralf Meyer, ; Dirk Enke,
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Guamán-Balcázar MDC, Montes A, Valor D, Coronel Y, De los Santos DM, Pereyra C, Martínez de la Ossa EJ. Inclusion of Natural Antioxidants of Mango Leaves in Porous Ceramic Matrices by Supercritical CO 2 Impregnation. Materials (Basel) 2022; 15:5934. [PMID: 36079317 PMCID: PMC9457324 DOI: 10.3390/ma15175934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/17/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Mango is one of the most important, medicinal tropical plants in the world from an economic point of view due to the presence of effective bioactive substances as co-products in its leaves. The aim of this work was to enhance the impregnation of natural antioxidants from mango leaves into a porous ceramic matrix. The effects of pressure, temperature, impregnation time, concentration of the extract and different porous silica on impregnation of phenolic compounds and antioxidant activity were analyzed. The volume of the pressurized fluid extract and amount of porous ceramic matrix remained constant. The best impregnation conditions were obtained at 6 h, 300 bar, 60 mg/mL, 35 °C and with MSU-H porous silica. The results indicated that increasing the pressure, concentration of the extract and temperature during impregnation with phenolic compounds such as gallic acid and iriflophenone 3-C (2-O-p-hydroxybenzolyl)-β-D-glucoside increased the antioxidant activity and the amount of total phenols.
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Affiliation(s)
- María del Cisne Guamán-Balcázar
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, University of Cádiz, International Excellence Agrifood Campus (CeiA3), 11510 Puerto Real, Spain
- Departamento de Química, Universidad Técnica Particular de Loja, San Cayetano Alto sn, AP, Loja 1101608, Ecuador
| | - Antonio Montes
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, University of Cádiz, International Excellence Agrifood Campus (CeiA3), 11510 Puerto Real, Spain
| | - Diego Valor
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, University of Cádiz, International Excellence Agrifood Campus (CeiA3), 11510 Puerto Real, Spain
| | - Yorky Coronel
- Departamento de Química, Universidad Técnica Particular de Loja, San Cayetano Alto sn, AP, Loja 1101608, Ecuador
| | - Desireé M. De los Santos
- Department of Physical Chemistry, Faculty of Sciences, University of Cádiz, International Excellence Agrifood Campus (CeiA3), 11510 Puerto Real, Spain
| | - Clara Pereyra
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, University of Cádiz, International Excellence Agrifood Campus (CeiA3), 11510 Puerto Real, Spain
| | - Enrique J. Martínez de la Ossa
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, University of Cádiz, International Excellence Agrifood Campus (CeiA3), 11510 Puerto Real, Spain
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Li S, Liu D, Hu Y, Su Z, Zhang X, Guo R, Li D, Lu Y. Soft Magnetic Microrobot Doped with Porous Silica for Stability-Enhanced Multimodal Locomotion in a Nonideal Environment. ACS Appl Mater Interfaces 2022; 14:10856-10874. [PMID: 35188736 DOI: 10.1021/acsami.1c25102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As an emerging field of robotics, magnetic-field-controlled soft microrobot has broad application prospects for its flexibility, locomotion diversity, and remote controllability. Magnetic soft microrobots can perform multimodal locomotion under the control of a magnetic field, which may have potential applications in precision medicine. However, previous research studies mainly focus on new locomotion in a relatively ideal environment, lacking exploration on the ability of magnetic microrobot locomotion to resist external disturbances and proceed in a nonideal environment. Here, a porous silica-doped soft magnetic microrobot is constructed for enhanced stability of multimodal locomotion in the nonideal biological environment. Porous silica spheres are doped into a NdFeB-silicone elastomer base, improving adhesion properties and refining the comprehensive mechanical properties of the microrobot. Multimodal locomotions are achieved, and the influence of porous silica doping on the stability of each locomotion in a nonideal environment is explored in depth. Motions in nonideal circumstances such as climbing, loading, current rushing, wind blowing, and obstacle hindering are conducted successfully with porous silica doping. Such a stability-enhanced multimodal locomotion system can be used in biocatalysis and thrombus removal, and its prospect for precision medicine is highlighted by in vivo demonstration of multimodal locomotion with nonideal disturbance.
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Affiliation(s)
- Shangsong Li
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Dong Liu
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yuping Hu
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhijie Su
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xinai Zhang
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Beijing No.4 High School International Campus, Beijing 100034, China
| | - Ruirui Guo
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- College of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Dan Li
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yuan Lu
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Fantini MCDA, Oliveira CLP, Lopes JLDS, Martins TDS, Akamatsu MA, Trezena AG, Franco MTD, Botosso VF, Sant’Anna OABE, Kardjilov N, Rasmussen MK, Bordallo HN. Using crystallography tools to improve vaccine formulations. IUCrJ 2022; 9:11-20. [PMID: 35059205 PMCID: PMC8733884 DOI: 10.1107/s205225252101071x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/15/2021] [Indexed: 06/14/2023]
Abstract
This article summarizes developments attained in oral vaccine formulations based on the encapsulation of antigen proteins inside porous silica matrices. These vaccine vehicles show great efficacy in protecting the proteins from the harsh acidic stomach medium, allowing the Peyer's patches in the small intestine to be reached and consequently enhancing immunity. Focusing on the pioneering research conducted at the Butantan Institute in Brazil, the optimization of the antigen encapsulation yield is reported, as well as their distribution inside the meso- and macroporous network of the porous silica. As the development of vaccines requires proper inclusion of antigens in the antibody cells, X-ray crystallography is one of the most commonly used techniques to unveil the structure of antibody-combining sites with protein antigens. Thus structural characterization and modelling of pure antigen structures, showing different dimensions, as well as their complexes, such as silica with encapsulated hepatitis B virus-like particles and diphtheria anatoxin, were performed using small-angle X-ray scattering, X-ray absorption spectroscopy, X-ray phase contrast tomography, and neutron and X-ray imaging. By combining crystallography with dynamic light scattering and transmission electron microscopy, a clearer picture of the proposed vaccine complexes is shown. Additionally, the stability of the immunogenic complex at different pH values and temperatures was checked and the efficacy of the proposed oral immunogenic complex was demonstrated. The latter was obtained by comparing the antibodies in mice with variable high and low antibody responses.
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Affiliation(s)
| | | | | | - Tereza da Silva Martins
- Chemistry Department, Federal University of São Paulo, Rua São Nicolau, 210, 2o andar, Diadema, SP 09913-030, Brazil
| | - Milena Apetito Akamatsu
- Bioindustrial Center, Butantan Institute, Avenida Vital Brazil, 1500, São Paulo, SP 05503-900, Brazil
| | - Aryene Góes Trezena
- Immunogenetic Laboratory, Butantan Institute, Avenida Vital Brazil, 1500, São Paulo, SP 05503-900, Brazil
| | - Milene Tino-De- Franco
- Immunogenetic Laboratory, Butantan Institute, Avenida Vital Brazil, 1500, São Paulo, SP 05503-900, Brazil
| | - Viviane Fongaro Botosso
- Virology Laboratory, Butantan Institute, Avenida Vital Brazil, 1500, São Paulo, SP 05503-900, Brazil
| | | | - Nikolay Kardjilov
- HZB für Materialien und Energie, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | | | - Heloísa Nunes Bordallo
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark
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10
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Vasin A, Kysil D, Rusavsky A, Isaieva O, Zaderko A, Nazarov A, Lysenko V. Synthesis and Luminescent Properties of Carbon Nanodots Dispersed in Nanostructured Silicas. Nanomaterials (Basel) 2021; 11:3267. [PMID: 34947616 PMCID: PMC8706695 DOI: 10.3390/nano11123267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/25/2021] [Accepted: 11/23/2021] [Indexed: 12/02/2022]
Abstract
Luminescent carbon nanoparticles are a relatively new class of luminescent materials that have attracted the increasing interest of chemists, physicists, biologists and engineers. The present review has a particular focus on the synthesis and luminescent properties of carbon nanoparticles dispersed inside nanostructured silica of different natures: oxidized porous silicon, amorphous thin films, nanopowders, and nanoporous sol-gel-derived ceramics. The correlations of processing conditions with emission/excitation spectral properties, relaxation kinetics, and photoluminescence photodegradation behaviors are analyzed. Following the evolution of the photoluminescence (PL) through the "from-bottom-to-up" synthesis procedure, the transformation of molecular-like ultraviolet emission of organic precursor into visible emission of carbon nanoparticles is demonstrated. At the end of the review, a novel method for the synthesis of luminescent and transparent composites, in form of nanoporous silica filled with luminescent carbon nanodots, is presented. A prototype of white light emitting devices, constructed on the basis of such luminophores and violet light emitting diodes, is demonstrated.
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Affiliation(s)
- Andrii Vasin
- Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 03028 Kyiv, Ukraine; (D.K.); (A.R.); (O.I.); (A.N.); (V.L.)
- Department of Applied Physics, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 03056 Kyiv, Ukraine
| | - Dmytro Kysil
- Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 03028 Kyiv, Ukraine; (D.K.); (A.R.); (O.I.); (A.N.); (V.L.)
| | - Andriy Rusavsky
- Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 03028 Kyiv, Ukraine; (D.K.); (A.R.); (O.I.); (A.N.); (V.L.)
| | - Oksana Isaieva
- Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 03028 Kyiv, Ukraine; (D.K.); (A.R.); (O.I.); (A.N.); (V.L.)
| | - Alexander Zaderko
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 01033 Kyiv, Ukraine;
| | - Alexei Nazarov
- Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 03028 Kyiv, Ukraine; (D.K.); (A.R.); (O.I.); (A.N.); (V.L.)
- Department of General Physics and Solid State Physics, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 03056 Kyiv, Ukraine
| | - Volodymyr Lysenko
- Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 03028 Kyiv, Ukraine; (D.K.); (A.R.); (O.I.); (A.N.); (V.L.)
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11
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Gu X, Guo J, Mai Y, Niu Y, Chen J, Zhao Q, Yang J. Improved transdermal permeability of tanshinone IIA from cataplasms by loading onto nanocrystals and porous silica. Pharm Dev Technol 2021; 26:1061-1072. [PMID: 34511025 DOI: 10.1080/10837450.2021.1980800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Novel transdermal cataplasms have been designed to improve permeability of poorly soluble drugs by different pretreatments. Nanocrystal and porous silica solid dispersions were loaded with Tanshinone IIA and incorporated into a cross-linked hydrogel matrix of cataplasm. It was shown that the small particle size and improved dissolution would increase dermal bioavailability. The adhesion, rheological properties, drug release, skin permeation, skin deposition and in vivo skin absorption of the different formulations were investigated. In an in vitro experiment using mouse skin, cumulative amount of drug permeated within 24 h was 7.32 ± 0.98 μg/cm2 from conventional cataplasm, 13.14 ± 0.70 μg/cm2 from nanocrystal-loaded cataplasm and 11.40 ± 0.13 μg/cm2 from porous silica solid dispersion-loaded cataplasm. In vitro dissolution profiles showed that drug release was 76.5% and 74.9% from two optimized cataplasms within 24 h, while conventional cataplasm was 55.0%. The cross-linking characteristics of the cataplasms were preserved after incorporation of different drug forms, while the elastic and viscous behaviors of the hydrogel layers increased. In vivo evaluation by CLSM showed the more favorable skin permeation for two optimized cataplasms. These findings suggest that applications of nanocrystal and porous silica systems on cataplasms enable effective transdermal delivery of poorly soluble drugs. The resulting drug delivery and rheological properties are desirable for transdermal application.AbbreviationAll the abbreviations that appear in this article are shown in Table 1.
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Affiliation(s)
- Xiangshuai Gu
- Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Jueshuo Guo
- Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Yaping Mai
- Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Yang Niu
- Key Laboratory of Ningxia Ethnomedicine Modernization, Minidtry of Education, Ningxia Medical University, Yinchuan, PR China
| | - Jing Chen
- Preparation center, General hospital, Ningxia Medical University, Yinchuan, PR China
| | - Qipeng Zhao
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Jianhong Yang
- Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
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12
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Wang Z, Chen H, Wang Y, Chen J, Arnould MA, Hu B, Popovs I, Mahurin SM, Dai S. Polymer-Grafted Porous Silica Nanoparticles with Enhanced CO 2 Permeability and Mechanical Performance. ACS Appl Mater Interfaces 2021; 13:27411-27418. [PMID: 34096271 DOI: 10.1021/acsami.1c04342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Three different types of polymer ligands, poly(methyl methacrylate) (PMMA), poly(methyl methacrylate-random-poly(ethylene glycol)methyl ether methacrylate) (PMMA-r-PEGMEMA), and poly(ionic liquid)s (PIL), were grafted onto the surface of 15 nm solid and large hollow porous silica nanoparticles (average particle size ∼60 nm) by surface-initiated atom transfer radical polymerization (SI-ATRP) to demonstrate the enhanced carbon dioxide (CO2) permeability as well as mechanical properties. After characterizing the purified products, free-standing bulk films were fabricated by the solvent-casting method. The poly(ionic liquid) nanocomposite films exhibited a much higher carbon dioxide permeance than PMMA and PMMA-r-PEGMEMA systems with a similar silica content. Also, the hollow silica-mixed matrix membranes showed a significant enhancement in CO2 permeability compared to the 15 nm solid silica films because of the pore structure. Despite the transparency loss due to the scattering of larger particle sizes, the hollow silica particle brush films exhibited the same mechanical properties as the 15 nm solid silica-derived ones.
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Affiliation(s)
- Zongyu Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Hao Chen
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Yangyang Wang
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Jihua Chen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Mark A Arnould
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Bin Hu
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Ilja Popovs
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Shannon M Mahurin
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
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13
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Marques AC, Vale M, Vicente D, Schreck M, Tervoort E, Niederberger M. Porous Silica Microspheres with Immobilized Titania Nanoparticles for In-Flow Solar-Driven Purification of Wastewater. Glob Chall 2021; 5:2000116. [PMID: 33976905 PMCID: PMC8101353 DOI: 10.1002/gch2.202000116] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/07/2020] [Indexed: 05/10/2023]
Abstract
In this paper, inorganic silica microspheres with interconnected macroporosity are tested as a platform for designing robust and efficient photocatalytic systems for a continuous flow reactor, enabling a low cost and straightforward purification of wastewater through solar-driven photocatalysis. The photocatalytically active microspheres are prepared by wet impregnation of porous silica scaffolds with Trizma-functionalized anatase titania (TiO2) nanoparticles (NPs). NPs loading of 22 wt% is obtained in the form of a thin and well-attached layer, covering the external surface of the microspheres as well as the internal surface of the pores. The TiO2 loading leads to an increase of the specific surface area by 26%, without impacting the typically interconnected macroporosity (≈60%) of the microspheres, which is essential for an efficient flow of the pollutant solution during the photocatalytic tests. These are carried out in a liquid medium for the decomposition of methyl orange and paracetamol. In addition to photocatalytic activity under continuous flow, the microspheres offer the advantage that they can be easily removed from the reaction medium, which is an appealing aspect for industrial applications. In this work, the typical issues of TiO2 NPs photocatalysts are circumvented, without the need for elaborate chemistries, and for low availability and expensive raw materials.
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Affiliation(s)
- Ana C. Marques
- CERENADEQInstituto Superior TécnicoUniversidade de LisboaAvenida Rovisco PaisLisboa1049‐001Portugal
| | - Mário Vale
- CERENADEQInstituto Superior TécnicoUniversidade de LisboaAvenida Rovisco PaisLisboa1049‐001Portugal
| | - Daniel Vicente
- CERENADEQInstituto Superior TécnicoUniversidade de LisboaAvenida Rovisco PaisLisboa1049‐001Portugal
| | - Murielle Schreck
- Laboratory for Multifunctional MaterialsDepartment of MaterialsETH Zürich, Vladimir‐Prelog‐Weg 5Zürich8093Switzerland
| | - Elena Tervoort
- Laboratory for Multifunctional MaterialsDepartment of MaterialsETH Zürich, Vladimir‐Prelog‐Weg 5Zürich8093Switzerland
| | - Markus Niederberger
- Laboratory for Multifunctional MaterialsDepartment of MaterialsETH Zürich, Vladimir‐Prelog‐Weg 5Zürich8093Switzerland
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14
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Prasad R, Jain NK, Yadav AS, Jadhav M, Radharani NNV, Gorain M, Kundu GC, Conde J, Srivastava R. Ultrahigh Penetration and Retention of Graphene Quantum Dot Meso porous Silica Nanohybrids for Image Guided Tumor Regression. ACS Appl Bio Mater 2021; 4:1693-1703. [PMID: 35014516 DOI: 10.1021/acsabm.0c01478] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
So far, near-infrared (NIR) light responsive nanostructures have been well-defined in cancer nanomedicine. However, poor penetration and retention in tumors are the limiting factors. Here, we report the ultrahigh penetration and retention of carbanosilica (graphene quantum dots, GQDs embedded mesoporous silica) in solid tumors. After NIR light exposure, quick (0.5 h) emission from the tumor area is observed that is further retained up to a week (tested up to 10 days) with a single dose administration of nanohybrids. Emissive and photothermally active GQDs and porous silica shell (about 31% drug loading) make carbanosilica a promising nanotheranostic agent exhibiting 68.75% tumor shrinking compared to without NIR light exposure (34.48%). Generated heat (∼52 °C) alters the permeability of tumor enhancing the accumulation of nanotheranostics into the tumor environment. Successive tumor imaging ensures the prolonged follow-up of image guided tumor regression due to synergistic therapeutic effect of nanohybrids.
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Affiliation(s)
- Rajendra Prasad
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
| | - Nishant K Jain
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
| | - Amit S Yadav
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune 411008, India.,School of Biotechnology and Kalinga Institute of Medical Sciences (KIMS), KIIT Deemed to be University, Institute of Eminence, Bhubaneswar 751 024, India
| | - Manali Jadhav
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India.,Center for Research in Nano Technology and Science, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
| | | | - Mahadeo Gorain
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune 411008, India
| | - Gopal C Kundu
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune 411008, India.,School of Biotechnology and Kalinga Institute of Medical Sciences (KIMS), KIIT Deemed to be University, Institute of Eminence, Bhubaneswar 751 024, India
| | - João Conde
- NOVA Medical School, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal.,Centre for Toxicogenomics and Human Health, Genetics, Oncology and Human Toxicology, NOVA Medical School, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal
| | - Rohit Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
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15
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Møller A, Schultz HB, Meola TR, Müllertz A, Prestidge CA. The Influence of Solidification on the in vitro Solubilisation of Blonanserin Loaded Supersaturated Lipid-Based Oral Formulations. Eur J Pharm Sci 2021; 157:105640. [PMID: 33189902 DOI: 10.1016/j.ejps.2020.105640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/12/2020] [Accepted: 11/07/2020] [Indexed: 11/30/2022]
Abstract
Supersaturated silica-lipid hybrids have previously demonstrated improved in vitro solubilisation and in vivo oral bioavailability of poorly water-soluble drugs, however were only fabricated using a single lipid (LFCS type I formulations) and were not compared to their liquid precursors. This study investigated the influence of lipid formulation classification (type I vs. type II vs. type IIIA/SNEDDS) and physical state (liquid LBF vs. solidified with silica) on the in vitro solubilisation of the poorly soluble, weak base, anti-psychotic drug, blonanserin (BLON), from a supersaturated lipid-based formulation (LBF). Stable liquid supersaturated LBF were fabricated using BLON (loaded at 150% of its equilibrium solubility), and solidified through encapsulation within porous silica microparticles at a 1:1 ratio. Their physicochemical properties and in vitro solubilisation during lipolysis were compared. Supersaturated BLON was encapsulated in the non-crystalline form. All supersaturated LBF improved the solubilisation of pure BLON during lipolysis regardless of their lipid formulation type or their physical state (1.7- to 13.4-fold). SNEDDS achieved greater solubilisation than the type II formulations (1.4- to 1.7-fold). Furthermore, the liquid precursors achieved greater solubilisation than the silica solidified formulations (4.5- to 5.7-fold). Additionally, in an attempt to increase BLON solubilisation, a spray-dried SNEDDS and dual-loaded solidified super-SNEDDS solidified with silica pre-loaded with BLON was developed, however did not significantly improve solubilisation. Liquid SNEDDS were identified as the optimal oral supersaturated LBF strategy for BLON based on in vitro lipolysis studies. Solidification of LBF using silica is a viable strategy for improving stability, however for drugs such as BLON, solidification may impede in vitro release and solubilisation.
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Affiliation(s)
- Amalie Møller
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark; UniSA: Clinical & Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Hayley B Schultz
- UniSA: Clinical & Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia
| | - Tahlia R Meola
- UniSA: Clinical & Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark; Bioneer:FARMA, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Clive A Prestidge
- UniSA: Clinical & Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia.
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16
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Cherevkov S, Azizov R, Sokolova A, Nautran V, Miruschenko M, Arefina I, Baranov M, Kurdyukov D, Stovpiaga E, Golubev V, Baranov A, Ushakova E. Interface Chemical Modification between All-Inorganic Perovskite Nanocrystals and Porous Silica Microspheres for Composite Materials with Improved Emission. Nanomaterials (Basel) 2021; 11:E119. [PMID: 33430213 PMCID: PMC7825651 DOI: 10.3390/nano11010119] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/02/2021] [Accepted: 01/04/2021] [Indexed: 11/16/2022]
Abstract
In recent years, there has been rapid progress in the development of photonic devices based on lead halide perovskite nanocrystals since they possess a set of unique optical and charge transport properties. However, the main limiting factor for their subsequent application is poor stability against exposure to adverse environmental conditions. In this work, a study of a composite material based on perovskite CsPbBr3 nanocrystals embedded in porous silica microspheres is presented. We developed two different approaches to change the interface between nanocrystals and the surface of the microsphere pores: surface treatment of (i) nanocrystals or (ii) microspheres. The surface modification with tetraethylorthosilicate molecules not only increased stability but also improved the optical responses of the composite material. The position of the emission band remained almost unchanged, but its lifetime increased significantly compared to the initial value. The improvement of the optical performance via surface modification with tetraethylorthosilicate molecules also works for the lead-free Bi-doped Cs2AgInCl6 double perovskite nanocrystals leading to increased stability of their optical responses at ambient conditions. These results clearly demonstrate the advantage of a composite material that can be used in novel photonic devices with improved performance.
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Affiliation(s)
- Sergei Cherevkov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Ruslan Azizov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Anastasiia Sokolova
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Valeriia Nautran
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Mikhail Miruschenko
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Irina Arefina
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Mikhail Baranov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Dmitry Kurdyukov
- Laboratory of Amorphous Semiconductor Physics, Ioffe Institute, 194021 Saint Petersburg, Russia; (D.K.); (E.S.); (V.G.)
| | - Ekaterina Stovpiaga
- Laboratory of Amorphous Semiconductor Physics, Ioffe Institute, 194021 Saint Petersburg, Russia; (D.K.); (E.S.); (V.G.)
| | - Valery Golubev
- Laboratory of Amorphous Semiconductor Physics, Ioffe Institute, 194021 Saint Petersburg, Russia; (D.K.); (E.S.); (V.G.)
| | - Alexander Baranov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Elena Ushakova
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
- Department of Materials Science and Engineering and Center for Functional Photonics (CFP), City University of Hong Kong, Hong Kong, China
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17
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Dragan ES, Humelnicu D, Ignat M, Varganici CD. Superadsorbents for Strontium and Cesium Removal Enriched in Amidoxime by a Homo-IPN Strategy Connected with Porous Silica Texture. ACS Appl Mater Interfaces 2020; 12:44622-44638. [PMID: 32935537 DOI: 10.1021/acsami.0c10983] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In light of the fact that two with good compatibility are better than one, the homo-interpenetrating polymer network (IPN) strategy was used in this work to design novel amidoxime (AOX)-interpenetrating networks into porous silica (PSi) with the final aim to enhance the sorption performances of composite sorbents toward Cs+ and Sr2+. To achieve this goal, first, a homo-IPN of poly(acrylonitrile) (PAN) was constructed inside the channels of two kinds of porous silica, one mesoporous (PSi1) and one macroporous (PSi2), the textural properties of silica being exploited in controlling the sorption performances of the composites. The novel composites were fully characterized by thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and the nitrogen sorption/desorption isotherms (Brunauer-Emmett-Teller (BET) analysis). The sorption properties of the PSi1/AOX and PSi2/AOX composite sorbents for Sr2+ and Cs+ were investigated in the batch mode to determine the effect of solution pH, contact time, initial metal ion concentration, temperature, and the presence of competitive ions on the adsorption performances. The fast kinetics of sorption was supported by the fact that ∼80% of Sr2+ and ∼65% of Cs+ were adsorbed in the first 30 min, the kinetic data being better described by the pseudo-second-order kinetic model. The experimental isotherms were well fitted by the Langmuir and Sips isotherm models. The superadsorption of Sr2+ and Cs+ is demonstrated by the values of the maximum sorption capacity of the best sorbent constructed with mesoporous silica (PSi1/IPN-AOX), which were 344.23 mg Cs+/g and 360.23 mg Sr2+/g. The sorption process was spontaneous and endothermic for both metal ions. The presence of interfering cations (Na+, K+, Ca2+, and Mg2+), at a concentration of 10-2 M, only slightly influenced the sorption capacity for the main cation. The composite sorbents were still highly efficient after five sorption/desorption cycles.
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Affiliation(s)
- Ecaterina Stela Dragan
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, Iasi 700487, Romania
| | - Doina Humelnicu
- Faculty of Chemistry, "Al. I. Cuza" University of Iasi, Carol I Bd. 11, 700506 Iasi, Romania
| | - Maria Ignat
- Faculty of Chemistry, "Al. I. Cuza" University of Iasi, Carol I Bd. 11, 700506 Iasi, Romania
| | - Cristian Dragos Varganici
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, Iasi 700487, Romania
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18
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Dragan ES, Humelnicu D. Contribution of Cross-Linker and Silica Morphology on Cr(VI) Sorption Performances of Organic Anion Exchangers Embedded into Silica Pores. Molecules 2020; 25:E1249. [PMID: 32164286 PMCID: PMC7179461 DOI: 10.3390/molecules25051249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/05/2020] [Accepted: 03/08/2020] [Indexed: 12/12/2022] Open
Abstract
Removal of Cr(VI) from the environment represents a stringent issue because of its tremendous effects on living organisms. In this context, design of sorbents with high sorption capacity for Cr(VI) is getting a strong need. For this purpose, poly(vinylbenzyl chloride), impregnated into porous silica (PSi), was cross-linked with either N,N,N',N'-tetramethyl-1,2-ethylenediamine (TEMED) or N,N,N',N'-tetramethyl-1,3-propanediamine, followed by the reaction of the free -CH2Cl groups with N,N-diethyl-2-hydroxyethylamine to generate strong base anion exchangers (ANEX) inside the pores. The PSi/ANEX composite sorbents were deeply characterized by FTIR spectroscopy, SEM-energy dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), and water uptake. The sorption performances of composites against Cr(VI) were investigated as a function of pH, contact time, initial concentration of Cr(VI), and temperature. It was found that the cross-linker structure and the silica morphology are the key factors controlling the sorption capacity. The adsorption process was spontaneous and endothermic and well described by pseudo-second-order kinetic and Sips isotherm models. The maximum sorption capacity of 311.2 mg Cr(VI)/g sorbent was found for the composite prepared with mesoporous silica using TEMED as cross-linker. The PSi/ANEX composite sorbents represent an excellent alternative for the removal of Cr(VI) oxyanions, being endowed with fast kinetics, equilibrium in about 60 min, and a high level of reusability in successive sorption/desorption cycles.
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Affiliation(s)
- Ecaterina Stela Dragan
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
| | - Doina Humelnicu
- Faculty of Chemistry, “Al. I. Cuza” University of Iasi, Bd. 11 Carol I, 700506 Iasi, Romania;
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Tighadouini S, Radi S, Elidrissi A, Haboubi K, Bacquet M, Degoutin S, Zaghrioui M, Garcia Y. Removal of toxic heavy metals from river water samples using a porous silica surface modified with a new β-ketoenolic host. Beilstein J Nanotechnol 2019; 10:262-273. [PMID: 30746320 PMCID: PMC6350882 DOI: 10.3762/bjnano.10.25] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 11/28/2018] [Indexed: 05/28/2023]
Abstract
A new hybrid adsorbent material for the efficient removal of heavy metals from natural real water solutions (Moroccan river water samples) was prepared by the immobilization of a new conjugated β-ketoenol-pyridine-furan ligand onto a silica matrix. The thermodynamical properties including pH, adsorption isotherms, competitive adsorption, selectivity and regeneration were studied to investigate the effect of ketoenol-pyridine-furan-silica (SiNL) on the removal of Zn(II), Pb(II), Cd(II) and Cu(II) from aqueous solutions. An increase in adsorption as a function of pH and fast adsorption was reached within 25 min. The maximum sorption capacities for Zn(II), Pb(II), Cd(II) and Cu(II) were 96.17, 47.07, 48.30 and 32.15 mg·g-1, respectively. Furthermore, the material proved to be very stable - its adsorption capacity remained greater than 98% even after five cycles of adsorption/desorption. Compared to literature results, this material can be considered a high-performing remediation adsorbent for the extraction of Zn(II) from natural real water solution.
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Affiliation(s)
- Said Tighadouini
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohamed I, 60 000 Oujda, Morocco
| | - Smaail Radi
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohamed I, 60 000 Oujda, Morocco
- Centre de l’Oriental des Sciences et Technologies de l’Eau (COSTE), Université Med I, 60 000 Oujda, Morocco
| | - Abderrahman Elidrissi
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohamed I, 60 000 Oujda, Morocco
| | - Khadija Haboubi
- Group of material sciences, energy and environnement, ENSAH, Alhoceima, Morocco
| | - Maryse Bacquet
- Unité Matériaux et Transformations UMR8207 (UMET), Equipe Ingénierie des Systèmes Polymères, Université des Sciences et Technologies de Lille, Bâtiment C6 salle 119-59655 Villeneuve d’Ascq, France
| | - Stéphanie Degoutin
- Unité Matériaux et Transformations UMR8207 (UMET), Equipe Ingénierie des Systèmes Polymères, Université des Sciences et Technologies de Lille, Bâtiment C6 salle 119-59655 Villeneuve d’Ascq, France
| | - Mustapha Zaghrioui
- Laboratoire GREMAN CNRS-UMR 7347 IUT de BLOIS, Université François-Rabelais de Tours, 15 Rue de la Chocolaterie, 41029 Blois, France
| | - Yann Garcia
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium
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Tsao CJ, Pandolfi L, Wang X, Minardi S, Lupo C, Evangelopoulos M, Hendrickson T, Shi A, Storci G, Taraballi F, Tasciotti E. Electrospun Patch Functionalized with Nanoparticles Allows for Spatiotemporal Release of VEGF and PDGF-BB Promoting In Vivo Neovascularization. ACS Appl Mater Interfaces 2018; 10:44344-44353. [PMID: 30511828 DOI: 10.1021/acsami.8b19975] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The use of nanomaterials as carriers for the delivery of growth factors has been applied to a multitude of applications in tissue engineering. However, issues of toxicity, stability, and systemic effects of these platforms have yet to be fully understood, especially for cardiovascular applications. Here, we proposed a delivery system composed of poly(dl-lactide- co-glycolide) acid (PLGA) and porous silica nanoparticles (pSi) to deliver vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF). The tight spatiotemporal release of these two proteins has been proven to promote neovascularization. In order to minimize tissue toxicity, localize the release, and maintain a stable platform, we conjugated two formulations of PLGA-pSi to electrospun (ES) gelatin to create a combined ES patch releasing both PDGF and VEGF. When compared to freely dispersed particles, the ES patch cultured in vitro with neonatal cardiac cells had significantly less particle internalization (2.0 ± 1.3%) compared to free PLGA-pSi (21.5 ± 6.1) or pSi (28.7 ± 2.5) groups. Internalization was positively correlated to late-stage apoptosis with PLGA-pSi and pSi groups having increased apoptosis compared to the untreated group. When implanted subcutaneously, the ES patch was shown to have greater neovascularization than controls evidenced by increased expression of α-SMA and CD31 after 21 days. Quantitative reverse transcription-polymerase chain reaction results support increased angiogenesis by the upregulation of VEGFA, VEGFR2, vWF, and COL3A1, exhibiting a synergistic effect with the release of VEGF-A164 and PDGF-BB after 21 days in vivo. The results of this study proved that the ES patch reduced cellular toxicity and may be tailored to have a dual release of growth factors promoting localized neovascularization.
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Affiliation(s)
- Christopher J Tsao
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
| | - Laura Pandolfi
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
| | - Xin Wang
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
| | - Silvia Minardi
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
| | - Cristina Lupo
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
| | - Michael Evangelopoulos
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
| | - Troy Hendrickson
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
- MD/PhD Program , Texas A&M College of Medicine , 8441 Riverside Parkway , Bryan , Texas 77807 , United States
| | - Aaron Shi
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
| | - Gianluca Storci
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
| | - Francesca Taraballi
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
- Houston Methodist Orthopedics & Sports Medicine , Houston Methodist Hospital , 6550 Fannin Street , Houston , Texas 77030 , United States
| | - Ennio Tasciotti
- Center for Biomimetic Medicine , Houston Methodist Research Institute , 6670 Bertner Avenue , Houston , Texas 77030 , United States
- Houston Methodist Orthopedics & Sports Medicine , Houston Methodist Hospital , 6550 Fannin Street , Houston , Texas 77030 , United States
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21
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Meka AK, Jenkins LJ, Dàvalos-Salas M, Pujara N, Wong KY, Kumeria T, Mariadason JM, Popat A. Enhanced Solubility, Permeability and Anticancer Activity of Vorinostat Using Tailored Meso porous Silica Nanoparticles. Pharmaceutics 2018; 10:E283. [PMID: 30562958 PMCID: PMC6321298 DOI: 10.3390/pharmaceutics10040283] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 12/07/2018] [Accepted: 12/10/2018] [Indexed: 11/21/2022] Open
Abstract
Suberoylanilide hydroxamic acid (SAHA) or vorinostat (VOR) is a potent inhibitor of class I histone deacetylases (HDACs) that is approved for the treatment of cutaneous T-cell lymphoma. However, it has the intrinsic limitations of low water solubility and low permeability which reduces its clinical potential especially when given orally. Packaging of drugs within ordered mesoporous silica nanoparticles (MSNs) is an emerging strategy for increasing drug solubility and permeability of BCS (Biopharmaceutical Classification System) class II and IV drugs. In this study, we encapsulated vorinostat within MSNs modified with different functional groups, and assessed its solubility, permeability and anti-cancer efficacy in vitro. Compared to free drug, the solubility of vorinostat was enhanced 2.6-fold upon encapsulation in pristine MSNs (MCM-41-VOR). Solubility was further enhanced when MSNs were modified with silanes having amino (3.9 fold) or phosphonate (4.3 fold) terminal functional groups. Moreover, permeability of vorinostat into Caco-2 human colon cancer cells was significantly enhanced for MSN-based formulations, particularly MSNs modified with amino functional group (MCM-41-NH₂-VOR) where it was enhanced ~4 fold. Compared to free drug, vorinostat encapsulated within amino-modified MSNs robustly induced histone hyperacetylation and expression of established histone deacetylase inhibitor (HDACi)-target genes, and induced extensive apoptosis in HCT116 colon cancer cells. Similar effects were observed on apoptosis induction in HH cutaneous T-cell lymphoma cells. Thus, encapsulation of the BCS class IV molecule vorinostat within MSNs represents an effective strategy for improving its solubility, permeability and anti-tumour activity.
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Affiliation(s)
- Anand Kumar Meka
- School of Pharmacy, The University of Queensland, Brisbane, QLD 4102, Australia.
| | - Laura J Jenkins
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Melbourne, VIC 3084, Australia.
| | - Mercedes Dàvalos-Salas
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Melbourne, VIC 3084, Australia.
| | - Naisarg Pujara
- School of Pharmacy, The University of Queensland, Brisbane, QLD 4102, Australia.
| | - Kuan Yau Wong
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia.
| | - Tushar Kumeria
- School of Pharmacy, The University of Queensland, Brisbane, QLD 4102, Australia.
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia.
| | - John M Mariadason
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Melbourne, VIC 3084, Australia.
| | - Amirali Popat
- School of Pharmacy, The University of Queensland, Brisbane, QLD 4102, Australia.
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia.
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22
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Ma Y, Björnmalm M, Wise AK, Cortez-Jugo C, Revalor E, Ju Y, Feeney OM, Richardson RT, Hanssen E, Shepherd RK, Porter CJH, Caruso F. Gel-Mediated Electrospray Assembly of Silica Supraparticles for Sustained Drug Delivery. ACS Appl Mater Interfaces 2018; 10:31019-31031. [PMID: 30192499 DOI: 10.1021/acsami.8b10415] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Supraparticles (SPs) composed of smaller colloidal particles provide a platform for the long-term, controlled release of therapeutics in biomedical applications. However, current synthesis methods used to achieve high drug loading and those involving biocompatible materials are often tedious and low throughput, thereby limiting the translation of SPs to diverse applications. Herein, we present a simple, effective, and automatable alginate-mediated electrospray technique for the assembly of robust spherical silica SPs (Si-SPs) for long-term (>4 months) drug delivery. The Si-SPs are composed of either porous or nonporous primary Si particles within a decomposable alginate matrix. The size and shape of the Si-SPs can be tailored by controlling the concentrations of alginate and silica primary particles used and key electrospraying parameters, such as flow rate, voltage, and collector distance. Furthermore, the performance (including drug loading kinetics, loading capacity, loading efficiency, and drug release) of the Si-SPs can be tuned by changing the porosity of the primary particles and through the retention or removal (via calcination) of the alginate matrix. The structure and morphology of the Si-SPs were characterized by electron microscopy, dynamic light scattering, N2 adsorption-desorption analysis, and X-ray photoelectron spectroscopy. The cytotoxicity and degradability of the Si-SPs were also examined. Drug loading kinetics and loading capacity for six different types of Si-SPs, using a model protein drug (fluorescently labeled lysozyme), demonstrate that Si-SPs prepared from primary silica particles with large pores can load significant amounts of lysozyme (∼10 μg per SP) and exhibit sustained, long-term release of more than 150 days. Our experiments show that Si-SPs can be produced through a gel-mediated electrospray technique that is robust and automatable (important for clinical translation and commercialization) and that they present a promising platform for long-term drug delivery.
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Affiliation(s)
| | - Mattias Björnmalm
- Bionics Institute , East Melbourne , Victoria 3002 , Australia
- Department of Materials, Department of Bioengineering, and the Institute of Biomedical Engineering , Imperial College London , London SW7 2AZ , U.K
| | - Andrew K Wise
- Bionics Institute , East Melbourne , Victoria 3002 , Australia
| | | | | | | | - Orlagh M Feeney
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and Drug Delivery Disposition and Dynamics , Monash Institute of Pharmaceutical Sciences, Monash University , Parkville , Victoria 3052 , Australia
| | | | - Eric Hanssen
- Melbourne Advanced Microscopy Facility and Department of Biochemistry and Molecular Biology , Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Parkville , Victoria 3010 , Australia
| | | | - Christopher J H Porter
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and Drug Delivery Disposition and Dynamics , Monash Institute of Pharmaceutical Sciences, Monash University , Parkville , Victoria 3052 , Australia
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23
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Abstract
The goal of the protocols described herein is to synthesize bioinspired silica materials, perform enzyme encapsulation therein, and partially or totally purify the same by acid elution. By combining sodium silicate with a polyfunctional bioinspired additive, silica is rapidly formed at ambient conditions upon neutralization. The effect of neutralization rate and biomolecule addition point on silica yield are investigated, and biomolecule immobilization efficiency is reported for varying addition point. In contrast to other porous silica synthesis methods, it is shown that the mild conditions required for bioinspired silica synthesis are fully compatible with the encapsulation of delicate biomolecules. Additionally, mild conditions are used across all synthesis and modification steps, making bioinspired silica a promising target for the scale-up and commercialization as both a bare material and active support medium. The synthesis is shown to be highly sensitive to conditions, i.e., the neutralization rate and final synthesis pH, however tight control over these parameters is demonstrated through the use of auto titration methods, leading to high reproducibility in reaction progression pathway and yield. Therefore, bioinspired silica is an excellent active material support choice, showing versatility towards many current applications, not limited to those demonstrated here, and potency in future applications.
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Affiliation(s)
- Joseph R H Manning
- Department of Chemical and Biological Engineering, University of Sheffield
| | - Eleni Routoula
- Department of Chemical and Biological Engineering, University of Sheffield
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24
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Li L, Lu Y, Jiang C, Zhu Y, Yang X, Hu X, Lin Z, Zhang Y, Peng M, Xia H, Mao C. Actively Targeted Deep Tissue Imaging and Photothermal-Chemo Therapy of Breast Cancer by Antibody-Functionalized Drug-Loaded X-Ray-Responsive Bismuth Sulfide@Meso porous Silica Core-Shell Nanoparticles. Adv Funct Mater 2018; 28:1704623. [PMID: 29706855 PMCID: PMC5918278 DOI: 10.1002/adfm.201704623] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
A theranostic platform combining synergistic therapy and real-time imaging attracts enormous attention but still faces great challenges, such as tedious modifications and lack of efficient accumulation in tumor. Here, a novel type of theranostic agent, bismuth sulfide@mesoporous silica (Bi2S3@ mPS) core-shell nanoparticles (NPs), for targeted image-guided therapy of human epidermal growth factor receptor-2 (HER-2) positive breast cancer is developed. To generate such NPs, polyvinylpyrrolidone decorated rod-like Bi2S3 NPs are chemically encapsulated with a mesoporous silica (mPS) layer and loaded with an anticancer drug, doxorubicin. The resultant NPs are then chemically conjugated with trastuzumab (Tam, a monoclonal antibody targeting HER-2 overexpressed breast cancer cells) to form Tam-Bi2S3@mPS NPs. By in vitro and in vivo studies, it is demonstrated that the Tam-Bi2S3@mPS bear multiple desired features for cancer theranostics, including good biocompatibility and drug loading ability as well as precise and active tumor targeting and accumulation (with a bismuth content in tumor being ≈16 times that of nontargeted group). They can simultaneously serve both as an excellent contrast enhancement probe (due to the presence of strong X-ray-attenuating bismuth element) for computed tomography deep tissue tumor imaging and as a therapeutic agent to destruct tumors and prevent metastasis by synergistic photothermalchemo therapy.
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Affiliation(s)
- Lihua Li
- China-Germany Research Center for Photonic Materials and Device the State Key Laboratory of Luminescent Materials and Devices, and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Yao Lu
- Guangdong Key Lab of Orthopedic Technology and Implant, Department of Orthopedics Guangzhou General Hospital of Guangzhou Military Command 111 Liuhua Road, Guangzhou, Guangdong 510010, China
| | - Chunyan Jiang
- China-Germany Research Center for Photonic Materials and Device the State Key Laboratory of Luminescent Materials and Devices, and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Ye Zhu
- Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73072, USA
| | - Xianfeng Yang
- China-Germany Research Center for Photonic Materials and Device the State Key Laboratory of Luminescent Materials and Devices, and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Xiaoming Hu
- Guangdong Key Lab of Orthopedic Technology and Implant, Department of Orthopedics Guangzhou General Hospital of Guangzhou Military Command 111 Liuhua Road, Guangzhou, Guangdong 510010, China
| | - Zefeng Lin
- Guangdong Key Lab of Orthopedic Technology and Implant, Department of Orthopedics Guangzhou General Hospital of Guangzhou Military Command 111 Liuhua Road, Guangzhou, Guangdong 510010, China
| | - Yu Zhang
- Guangdong Key Lab of Orthopedic Technology and Implant, Department of Orthopedics Guangzhou General Hospital of Guangzhou Military Command 111 Liuhua Road, Guangzhou, Guangdong 510010, China
| | - Mingying Peng
- China-Germany Research Center for Photonic Materials and Device the State Key Laboratory of Luminescent Materials and Devices, and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Hong Xia
- Guangdong Key Lab of Orthopedic Technology and Implant, Department of Orthopedics Guangzhou General Hospital of Guangzhou Military Command 111 Liuhua Road, Guangzhou, Guangdong 510010, China
| | - Chuanbin Mao
- Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73072, USA
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25
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Meng QQ, Zhao X, Lin CY, Chen SJ, Ding YC, Chen ZY. Figure of Merit Enhancement of a Surface Plasmon Resonance Sensor Using a Low-Refractive-Index Porous Silica Film. Sensors (Basel) 2017; 17:s17081846. [PMID: 28796155 PMCID: PMC5580096 DOI: 10.3390/s17081846] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/03/2017] [Accepted: 08/08/2017] [Indexed: 11/22/2022]
Abstract
In this paper; the surface plasmon resonance (SPR) sensor with a porous silica film was studied. The effect of the thickness and porosity of the porous silica film on the performance of the sensor was analyzed. The results indicated that the figure of merit (FOM) of an SPR sensor can be enhanced by using a porous silica film with a low-refractive-index. Particularly; the FOM of an SPR sensor with 40 nm thick 90% porosity porous silica film; whose refractive index is 1.04 was improved by 311% when compared with that of a traditional SPR sensor. Furthermore; it was found that the decrease in the refractive index or the increase in the thickness of the low-refractive-index porous silica film can enlarge the FOM enhancement. It is believed that the proposed SPR sensor with a low-refractive-index porous silica film will be helpful for high-performance SPR sensors development.
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Affiliation(s)
- Qing-Qing Meng
- College of Science, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xin Zhao
- College of Science, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Cheng-You Lin
- College of Science, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Shu-Jing Chen
- School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Ying-Chun Ding
- College of Science, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Zhao-Yang Chen
- College of Science, Beijing University of Chemical Technology, Beijing 100029, China.
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26
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Wang Y, Zhu Y, Zhang C, Li J, Guan Z. Transparent, Superhydrophobic Surface with Varied Surface Tension Responsiveness in Wettability Based on Tunable Porous Silica Structure for Gauging Liquid Surface Tension. ACS Appl Mater Interfaces 2017; 9:4142-4150. [PMID: 28071885 DOI: 10.1021/acsami.6b12779] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Any solid surface can spontaneously exhibit variational wettability toward liquids with varied surface tension (γ). However, this correspondence has seldom been proposed or used on an artificial superhydrophobic surface, which should be more remarkable and peculiar. Herein, we fabricated robust, transparent superhydrophobic surfaces utilizing acid- and base-catalyzed silica (AC- and BC-silica) particles combined with candle soot template for structural construction and the CVD process for chemical modification. Three types of porous silica structures were devised, which presented distinctive surface tension responsiveness in wettability. Interestingly, all types of surfaces (i.e., AC-, AC/BC-, and BC-silica) show high repellence to high surface tension liquid (γ > 35 mN/m), and small differences are observed. With decreasing γ of the ethanol-water mixtures (γ < 35 mN/m), the static contact angles (SCAs) on all surfaces have an evident decline, but the features of the decreases are fairly different. As γ decreases, the SCA on the AC-silica surface decreases gradually, but the extent of decline becomes larger when γ < 27.42 mN/m. However, the SCA on the BC-silica surface decreases gradually except for γ ≈ 30.81 mN/m, and the SCA undergoes a sharp decline at γ ≈ 30.81 mN/m. The SCA on the AC/BC-silica surface has a similar variation as that of the SCA on the BC-silica surface, but a lower rate of BC-silica particles, e.g., 1/16, 1/8, 1/1 (AC/BC), further diminishes the critical γ values (where a sharp SCA drop occurs) to 30.16, 29.56, and 28.04 mN/m, respectively. The diversity is believed to be ascribed to the structure-induced selectivity of pore infiltration for the liquid. The tunable responsiveness can be generalized to various classes of organic aqueous solutions including methanol, acetic acid, acetone, and N,N-dimethylformamide. Benefiting from this, we can estimate organics concentration of an organic aqueous solution as well as its liquid surface tension by detecting its wettability on all of the diverse superhydrophobic surfaces.
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Affiliation(s)
- Yan Wang
- College of Materials Science and Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites , Nanjing 210009, China
| | - Yingjie Zhu
- College of Materials Science and Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, China
| | - Chunyang Zhang
- College of Materials Science and Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites , Nanjing 210009, China
| | - Jun Li
- College of Materials Science and Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites , Nanjing 210009, China
| | - Zisheng Guan
- College of Materials Science and Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites , Nanjing 210009, China
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Abstract
The construction of physical or chemical adsorbents for CO2 capture and sequestration (CCS) is a vital technology in the interim period on the way towards a sustainable low-carbon future. The search for efficient materials to satisfy the increasing demand for CCS has become extremely important. Porous materials, including porous silica, porous carbons, and newly developed metal-organic frameworks and porous organic polymers, possessing regular and well-defined porous geometry and having a high surface area and pore volume, have been widely studied for separations on laboratory scale. On account of the dipole-quadrupole interactions between the polarizable CO2 molecule and the accessible nitrogen site, the investigations have indicated that the incorporation of accessible nitrogen-donor groups into the pore walls of porous materials can improve the affinity to CO2 and increase the CO2 uptake capacity and selectivity. The CO2 -adsorption process based on solid nitrogen-rich porous adsorbents does generally not require heating of a large amount of water (60-70 wt%) for regeneration, while such a heating approach cannot be avoided in the regeneration of amine-based solution absorption processes. Thus, nitrogen-rich porous adsorbents show good regeneration properties without sacrificing high separation efficiency. As such, nitrogen-rich porous materials as highly promising CO2 adsorbents have been broadly fabricated and intensively investigated. This Focus Review highlights recent significant advances in nitrogen-rich porous materials for CCS.
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Affiliation(s)
- Pei-Zhou Li
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
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28
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Abstract
Of the many types of biomolecules used for molecular imprinting applications, proteins are some of the most useful, yet challenging, templates to work with. One method, termed the 'epitope approach', involves imprinting a short peptide fragment of the protein into the polymer to promote specific adsorption of the entire protein, similar to the way an antigen binds to an antibody via the epitope. Whole lysozyme or the 16 residue lysozyme C peptide was imprinted into porous silica scaffolds using sol-gel processing. After removing template, scaffolds were exposed to lysozyme and/or RNase A, which was used as a competitor molecule of comparable size. When comparing protein- to peptide-imprinted scaffolds, similar amounts of lysozyme and RNase were bound from single protein solutions. However, while whole lysozyme-imprinted scaffolds showed about 4:1 preferential binding of lysozyme to RNase, peptide-imprinted scaffolds failed to show statistical significance, even though a slight preferential binding trend was present. These initial studies suggest there is potential for using peptide-imprinting to create specific protein-binding sites on porous inorganic surfaces, although further development of the materials is needed.
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Affiliation(s)
- M E Brown
- Center for Biomedical Engineering, University of Kentucky, Lexington, KY 40506
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