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Rathee S, Ojha A, Singh KRB, Arora VK, Prabhakar PK, Agnihotri S, Chauhan K, Singh J, Shukla S. Revolutionizing goat milk gels: A central composite design approach for synthesizing ascorbic acid-functionalized iron oxide nanoparticles decorated alginate-chitosan nanoparticles fortified smart gels. Heliyon 2023; 9:e19890. [PMID: 37809974 PMCID: PMC10559278 DOI: 10.1016/j.heliyon.2023.e19890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/03/2023] [Accepted: 09/05/2023] [Indexed: 10/10/2023] Open
Abstract
Goat milk gels (GMGs) are popular food due to their high water content, low-calorie density, appealing taste, texture enhancers, stability, and satiety-enhancing characteristics, making them ideal for achieving food security and zero hunger. The GMGs were optimized using the central composite design matrix of response surface methodology using goat milk powder (35-55 g), whole milk powder (10-25 g), and potato powder (10-15 g) as independent variables. In contrast, complex modulus, flow stress, and forward extrudability were chosen as dependent variables. The maximum value of complex modulus 33670.9 N, good flow stress 7863.6 N, and good extrudability 65.32 N was achieved under optimal conditions. The optimized goat milk gel was fortified with ascorbic acid-coated iron oxide nanoparticle (magnetic nature) decorated alginate-chitosan nanoparticles (AA-MNP@CANPs), making it nutritionally rich in an economically feasible way-the decorated AA-MNP@CANPs characterized for size, shape, crystallinity, surface charge, and optical characteristics. Finally, the optimized fortified smart GMGs were further characterized via Scanning electron microscopy, Rheology, Texture profile analysis, Fourier transforms infrared (FTIR), and X-Ray Diffraction (XRD). The fortified smart GMGs carry more nutritional diversity, targeted iron delivery, and the fundamental sustainability development goal of food security.
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Affiliation(s)
- Shweta Rathee
- Department of Food Science and Technology, National Institute of Food Science Technology Entrepreneurship and Management, Kundli, Sonipat, India
| | - Ankur Ojha
- Department of Food Science and Technology, National Institute of Food Science Technology Entrepreneurship and Management, Kundli, Sonipat, India
| | - Kshitij RB. Singh
- Department of Chemistry, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Vinkel Kumar Arora
- Department of Food Engineering, National Institute of Food Science Technology Entrepreneurship and Management, Kundli, Sonipat, India
| | - Pramod Kumar Prabhakar
- Department of Food Science and Technology, National Institute of Food Science Technology Entrepreneurship and Management, Kundli, Sonipat, India
| | - Shekhar Agnihotri
- Department of Agriculture and Environment Sciences, National Institute of Food Science Technology Entrepreneurship and Management, Kundli, Sonipat, India
| | - Komal Chauhan
- Department of Food Science and Technology, National Institute of Food Science Technology Entrepreneurship and Management, Kundli, Sonipat, India
| | - Jay Singh
- Department of Chemistry, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Shruti Shukla
- Department of Nanotechnology, North-Eastern Hill University (NEHU), Shillong, Meghalaya, India
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Ionogels Derived from Fluorinated Ionic Liquids to Enhance Aqueous Drug Solubility for Local Drug Administration. Gels 2022; 8:gels8090594. [PMID: 36135306 PMCID: PMC9498591 DOI: 10.3390/gels8090594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 12/05/2022] Open
Abstract
Gelatin is a popular biopolymer for biomedical applications due to its harmless impact with a negligible inflammatory response in the host organism. Gelatin interacts with soluble molecules in aqueous media as ionic counterparts such as ionic liquids (ILs) to be used as cosolvents to generate the so-called Ionogels. The perfluorinated IL (FIL), 1-ethyl-3-methylpyridinium perfluorobutanesulfonate, has been selected as co-hydrosolvent for fish gelatin due to its low cytotoxicity and hydrophobicity aprotic polar structure to improve the drug aqueous solubility. A series of FIL/water emulsions with different FIL content and their corresponding shark gelatin/FIL Ionogel has been designed to enhance the drug solubility whilst retaining the mechanical structure and their nanostructure was probed by simultaneous SAXS/WAXS, FTIR and Raman spectroscopy, DSC and rheological experiments. Likewise, the FIL assisted the solubility of the antitumoural Doxorubicin whilst retaining the performing mechanical properties of the drug delivery system network for the drug storage as well as the local administration by a syringe. In addition, the different controlled release mechanisms of two different antitumoral such as Doxorubicin and Mithramycin from two different Ionogels formulations were compared to previous gelatin hydrogels which proved the key structure correlation required to attain specific therapeutic dosages.
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Hermida-Merino C, Cabaleiro D, Lugo L, Valcarcel J, Vázquez JA, Bravo I, Longo A, Salloum-Abou-Jaoude G, Solano E, Gracia-Fernández C, Piñeiro MM, Hermida-Merino D. Characterization of Tuna Gelatin-Based Hydrogels as a Matrix for Drug Delivery. Gels 2022; 8:gels8040237. [PMID: 35448138 PMCID: PMC9026235 DOI: 10.3390/gels8040237] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/23/2022] [Accepted: 04/01/2022] [Indexed: 12/27/2022] Open
Abstract
The skin of yellowfin tuna is one of the fishery industry solid residues with the greatest potential to add extra value to its circular economy that remains yet unexploited. Particularly, the high collagen content of fish skin allows generating gelatin by hydrolysis, which is ideal for forming hydrogels due to its biocompatibility and gelling capability. Hydrogels have been used as drug carriers for local administration due to their mechanical properties and drug loading capacity. Herein, novel tuna gelatin hydrogels were designed as drug vehicles with two structurally different antitumoral model compounds such as Doxorubicin and Crocin to be administrated locally in tissues with complex human anatomies after surgical resection. The characterization by gel permeation chromatography (GPC) of purified gelatin confirmed their heterogeneity composition, exhibiting three major bands that correspond to the β and α chains along with high molecular weight species. In addition, the Fourier Transform Infrared (FT-IR) spectra of gelatin probed the secondary structure of the gelatin showing the simultaneous existence of α helix, β sheet, and random coil structures. Morphological studies at different length scales were performed by a multi-technique approach using SAXS/WAXS, AFM and cryo-SEM that revealed the porous network formed by the interaction of gelatin planar aggregates. In addition, the sol-gel transition, as well as the gelation point and the hydrogel strength, were studied using dynamic rheology and differential scanning calorimetry. Likewise, the loading and release profiles followed by UV-visible spectroscopy indicated that the novel gelatin hydrogels improve the drug release of Doxorubicin and Crocin in a sustained fashion, indicating the structure-function importance in the material composition.
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Affiliation(s)
- Carolina Hermida-Merino
- Departamento de Física Aplicada, CINBIO, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain; (D.C.); (L.L.); (M.M.P.)
- Correspondence: (C.H.-M.); (D.H.-M.)
| | - David Cabaleiro
- Departamento de Física Aplicada, CINBIO, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain; (D.C.); (L.L.); (M.M.P.)
| | - Luis Lugo
- Departamento de Física Aplicada, CINBIO, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain; (D.C.); (L.L.); (M.M.P.)
| | - Jesus Valcarcel
- Grupo de Reciclado y Valorización de Materiales Residuales (REVAL), Instituto de Investigaciones Marinas (IIM-CSIC), Eduardo Cabello 6, 36208 Vigo, Spain; (J.V.); (J.A.V.)
| | - Jose Antonio Vázquez
- Grupo de Reciclado y Valorización de Materiales Residuales (REVAL), Instituto de Investigaciones Marinas (IIM-CSIC), Eduardo Cabello 6, 36208 Vigo, Spain; (J.V.); (J.A.V.)
| | - Ivan Bravo
- Departamento de Química Física, Facultad de Farmacia, UCLM, 02071 Albacete, Spain;
| | - Alessandro Longo
- ID20, European Synchrotron Radiation Facility (ESRF), 71 Avenue des Martyrs, 38000 Grenoble, France;
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, UOS Palermo, Via Ugo La Malfa, 153, 90146 Palermo, Italy
| | - Georges Salloum-Abou-Jaoude
- Constellium C-TEC Technology Center, Parc Economique Centr’alp, 725 rue Aristide Bergès, 38341 Voreppe, France;
| | - Eduardo Solano
- ALBA Synchrotron Light Source, NCD-SWEET Beamline, 08290 Cerdanyola del Valles, Spain;
| | | | - Manuel M. Piñeiro
- Departamento de Física Aplicada, CINBIO, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain; (D.C.); (L.L.); (M.M.P.)
| | - Daniel Hermida-Merino
- Departamento de Física Aplicada, CINBIO, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain; (D.C.); (L.L.); (M.M.P.)
- Netherlands Organisation for Scientific Research (NWO), c/o ESRF BP 220, DUBBLE CRG/ESRF, CEDEX, 38043 Grenoble, France
- Correspondence: (C.H.-M.); (D.H.-M.)
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4
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Impact of high-pressure homogenization on physico-chemical, structural, and rheological properties of quinoa protein isolates. FOOD STRUCTURE 2022. [DOI: 10.1016/j.foostr.2022.100265] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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5
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Yang Z, de Campo L, Gilbert EP, Knott R, Cheng L, Storer B, Lin X, Luo L, Patole S, Hemar Y. Effect of NaCl and CaCl2 concentration on the rheological and structural characteristics of thermally-induced quinoa protein gels. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107350] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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6
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Bergamaschi G, Musicò A, Frigerio R, Strada A, Pizzi A, Talone B, Ghezzi J, Gautieri A, Chiari M, Metrangolo P, Vanna R, Baldelli Bombelli F, Cretich M, Gori A. Composite Peptide-Agarose Hydrogels for Robust and High-Sensitivity 3D Immunoassays. ACS APPLIED MATERIALS & INTERFACES 2022; 14:4811-4822. [PMID: 35060693 DOI: 10.1021/acsami.1c18466] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Canonical immunoassays rely on highly sensitive and specific capturing of circulating biomarkers by interacting biomolecular baits. In this frame, bioprobe immobilization in spatially discrete three-dimensional (3D) spots onto analytical surfaces by hydrogel encapsulation was shown to provide relevant advantages over conventional two-dimensional (2D) platforms. Yet, the broad application of 3D systems is still hampered by hurdles in matching their straightforward fabrication with optimal functional properties. Herein, we report on a composite hydrogel obtained by combining a self-assembling peptide (namely, Q3 peptide) with low-temperature gelling agarose that is proved to have simple and robust application in the fabrication of microdroplet arrays, overcoming hurdles and limitations commonly associated with 3D hydrogel assays. We demonstrate the real-case scenario feasibility of our 3D system in the profiling of Covid-19 patients' serum IgG immunoreactivity, which showed remarkably improved signal-to-noise ratio over canonical assays in the 2D format and exquisite specificity. Overall, the new two-component hydrogel widens the perspectives of hydrogel-based arrays and represents a step forward towards their routine use in analytical practices.
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Affiliation(s)
- Greta Bergamaschi
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"─National Research Council of Italy (SCITEC-CNR), 20131 Milan, Italy
| | - Angelo Musicò
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"─National Research Council of Italy (SCITEC-CNR), 20131 Milan, Italy
| | - Roberto Frigerio
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"─National Research Council of Italy (SCITEC-CNR), 20131 Milan, Italy
| | - Alessandro Strada
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"─National Research Council of Italy (SCITEC-CNR), 20131 Milan, Italy
- Laboratory of Supramolecular and Bio-Nanomaterials (SBNLab), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Andrea Pizzi
- Laboratory of Supramolecular and Bio-Nanomaterials (SBNLab), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Benedetta Talone
- Physics Department, Politecnico di Milano, P.zza Leonardo da Vinci 32, 20133 Milan, Italy
| | - Jacopo Ghezzi
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"─National Research Council of Italy (SCITEC-CNR), 20131 Milan, Italy
- Biomolecular Engineering Lab, Dept. Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milan, Italy
| | - Alfonso Gautieri
- Biomolecular Engineering Lab, Dept. Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milan, Italy
| | - Marcella Chiari
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"─National Research Council of Italy (SCITEC-CNR), 20131 Milan, Italy
| | - Pierangelo Metrangolo
- Laboratory of Supramolecular and Bio-Nanomaterials (SBNLab), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Renzo Vanna
- Istituto di Fotonica e Nanotecnologie─National Research Council of Italy (IFN-CNR), 20133 Milan, Italy
| | - Francesca Baldelli Bombelli
- Laboratory of Supramolecular and Bio-Nanomaterials (SBNLab), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Marina Cretich
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"─National Research Council of Italy (SCITEC-CNR), 20131 Milan, Italy
| | - Alessandro Gori
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"─National Research Council of Italy (SCITEC-CNR), 20131 Milan, Italy
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Affiliation(s)
- Zhi Yang
- School of Food and Advanced Technology, Massey University, Auckland, New Zealand
| | - Sahraoui Chaieb
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
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8
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Sakai A, Murayama Y, Yanagisawa M. Cyclic Micropipette Aspiration Reveals Viscoelastic Change of a Gelatin Microgel Prepared Inside a Lipid Droplet. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5186-5191. [PMID: 32347734 DOI: 10.1021/acs.langmuir.0c00428] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Gelatin microgels prepared inside lipid droplets have a much higher elasticity than that of bulk gels because of their differences in nanostructure. This nanostructural difference in gelatin microgels is expected to provide the microgels with unique viscoelastic properties that differ from the bulk gels. To clarify this hypothesis, here we evaluated the frequency-dependent viscoelasticity of gelatin gels by developing a cyclic micropipette aspiration. The frequency-dependent relationship between storage modulus E' (reflecting elasticity) and loss modulus E″ (reflecting viscosity) was compared between the microgels and the bulk gels. The microgels have a smaller E″/E' than that of the bulk gels. Because the ratio E″/E' of the bulk gels is constant regardless of the concentration, the microgel viscoelasticity cannot be achieved for the bulk gels with a different concentration. These findings mean that preparing biopolymer gels inside droplets is useful to change the viscoelasticity via nanostructural transition through the interaction with the droplet interface.
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Affiliation(s)
- Atsushi Sakai
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Naka-cho 2-24-16, Koganei, Tokyo 184-8588, Japan
- Komaba Institute for Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba 3-8-1, Meguro, Tokyo 153-8902, Japan
| | - Yoshihiro Murayama
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Naka-cho 2-24-16, Koganei, Tokyo 184-8588, Japan
| | - Miho Yanagisawa
- Komaba Institute for Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba 3-8-1, Meguro, Tokyo 153-8902, Japan
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba 3-8-1, Meguro, Tokyo 153-8902, Japan
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9
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Wang Y, Eastwood B, Yang Z, de Campo L, Knott R, Prosser C, Carpenter E, Hemar Y. Rheological and structural characterization of acidified skim milks and infant formulae made from cow and goat milk. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.05.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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10
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Effect of amyloglucosidase hydrolysis on the multi-scale supramolecular structure of corn starch. Carbohydr Polym 2019; 212:40-50. [DOI: 10.1016/j.carbpol.2019.02.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/30/2019] [Accepted: 02/09/2019] [Indexed: 12/27/2022]
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11
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Micron-scale restructuring of gelling silica subjected to shear. J Colloid Interface Sci 2019; 533:136-143. [PMID: 30165295 DOI: 10.1016/j.jcis.2018.08.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 08/09/2018] [Accepted: 08/09/2018] [Indexed: 11/22/2022]
Abstract
HYPOTHESIS/OBJECTIVE We examine the time dependent viscometric behavior of a well-defined system of gelling colloidal silica and how this behavior may be understood from a simple theoretical model which incorporates the microstructure of the gel. The ultra-small angle neutron scattering (USANS) technique is used to interrogate structure during the gelation process. EXPERIMENTS The investigations focused on a system where both particles and interactions are well-defined: 7 nm silica particle acid-treated aqueous solution subjected to a constant applied shear in Couette geometry. Ultra-small angle neutron scattering (USANS) time-dependent scattering intensities were measured at wave vectors, q, in the range, 1.0 × 10-3 ≤ q/nm ≤ 7.3 × 10-2 coupled with viscosity data recorded simultaneously. The interpretation of the USANS scattering data is reliant on an isotropic sample. This assumption has been investigated, over a limited range of scattering vectors, using more suitable small angle neutron scattering (SANS) instrumentation with a restricted q-range. FINDINGS The first recorded direct kinetic measurements of the micron-scale structure in a gelling system. A critical micro-structural feature of the intensity-viscosity time behavior of a gelling colloid subjected to a shear is the cluster size. A viscosity/intensity coupling observed at the time of a viscosity maximum that corresponds to a time-dependent critical stress and speculated to be independent of the wave vector over a wide q-range.
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12
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Yang Z, Yang H, Yang H. Characterisation of rheology and microstructures of κ-carrageenan in ethanol-water mixtures. Food Res Int 2018; 107:738-746. [DOI: 10.1016/j.foodres.2018.03.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 03/02/2018] [Accepted: 03/04/2018] [Indexed: 10/17/2022]
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13
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Rehm C, de Campo L, Brûlé A, Darmann F, Bartsch F, Berry A. Design and performance of the variable-wavelength Bonse–Hart ultra-small-angle neutron scattering diffractometer KOOKABURRA at ANSTO. J Appl Crystallogr 2018. [DOI: 10.1107/s1600576717016879] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The double-crystal ultra-small-angle neutron scattering (USANS) diffractometer KOOKABURRA at ANSTO was made available for user experiments in 2014. KOOKABURRA allows the characterization of microstructures covering length scales in the range of 0.1–10 µm. Use of the first- and second-order reflections coming off a doubly curved highly oriented mosaic pyrolytic graphite premonochromator at a fixed Bragg angle, in conjunction with two interchangeable pairs of Si(111) and Si(311) quintuple-reflection channel-cut crystals, permits operation of the instrument at two individual wavelengths, 4.74 and 2.37 Å. This unique feature among reactor-based USANS instruments allows optimal accommodation of a broad range of samples, both weakly and strongly scattering, in one sample setup. The versatility and capabilities of KOOKABURRA have already resulted in a number of research papers, clearly demonstrating that this instrument has a major impact in the field of large-scale structure determination.
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Youssry M, Kamand FZ, Magzoub MI, Nasser MS. Aqueous dispersions of carbon black and its hybrid with carbon nanofibers. RSC Adv 2018; 8:32119-32131. [PMID: 35547476 PMCID: PMC9086548 DOI: 10.1039/c8ra05446k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 09/12/2018] [Indexed: 11/21/2022] Open
Abstract
The aqueous dispersions of a special type of carbon black (CB) in 1 M lithium bis(trifluoromethanesulfonimide) electrolyte is mainly controlled by the affinity of the aqueous electrolyte towards the CB particles rather than the particle size. In spite of its small particle size (30 nm), this type of CB forms a three-dimensional open network which is rheologically and electrically percolated at a relatively high threshold (2.0 wt%) with enhanced rheological and electrical properties. At this percolating threshold, replacing a trace amount of CB with equivalent carbon nanofibers (CNFs) produces hybrid dispersions with higher electrical conductivity and comparable rheological behavior to pure CB dispersions. This hybrid dispersion is dominated by a cooperatively supporting network, which is wired by the flexible filamentous nanofibers so that it is able to recover the conductivity loss under flow conditions due to flow-induced breaking up of the conductive pathways of CB and presumably sustain a higher load of active materials. This finding suggests hybrid dispersions as a promising precursor in the formulation of electrode suspensions for aqueous semi-solid redox flow cells. Optimal hybrid dispersion of carbon black (CB) and nanofibers (CNFs) is formed at a critical content of CNFs before its aggregation concentration so that CNFs wire CB aggregates to recover the conductivity loss without increasing of CB rigidity.![]()
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Affiliation(s)
- Mohamed Youssry
- Department of Chemistry and Earth Sciences
- College of Arts and Sciences
- Qatar University
- Doha
- Qatar
| | - Fadi Z. Kamand
- Department of Chemistry and Earth Sciences
- College of Arts and Sciences
- Qatar University
- Doha
- Qatar
| | - Musaab I. Magzoub
- Gas Processing Center
- College of Engineering
- Qatar University
- Doha
- Qatar
| | - Mustafa S. Nasser
- Gas Processing Center
- College of Engineering
- Qatar University
- Doha
- Qatar
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15
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Cabiati M, Vozzi F, Gemma F, Montemurro F, De Maria C, Vozzi G, Domenici C, Del Ry S. Cardiac tissue regeneration: A preliminary study on carbon-based nanotubes gelatin scaffold. J Biomed Mater Res B Appl Biomater 2017; 106:2750-2762. [PMID: 29206329 DOI: 10.1002/jbm.b.34056] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 11/06/2017] [Accepted: 11/18/2017] [Indexed: 01/15/2023]
Abstract
The aim of this study was set-up and test of gelatin and carbon nanotubes scaffolds. Gelatin-based (5%) genipin cross-linked (0.2%) scaffolds embedding single-walled carbon nanotubes (SWCNTs, 0.3, 0.5, 0.7, 0.9, and 1.3% w/w) were prepared and mechanically/electrically characterized. For biological evaluation, H9c2 cell line was cultured for 10 days. Cytotoxicity, cell growth and differentiation, immunohistochemistry, and real-time PCR analysis were performed. Myoblast and cardiac differentiation were obtained by serum reduction to 1% (C1% ) and stimulation with 50 nM all trans-retinoic acid (CRA ), respectively. Immunohistochemistry showed elongated myotubes in C1% while round and multinucleated cells in CRA with also a significantly increased expression of natriuretic peptides (NP) and ET-1 receptors in parallel with a decreased ET-1. On scaffolds, cell viability was similar for Gel-SWCNT0.3%/0.9% ; NP and ET systems expression decreased in both concentrations with respect to control and CX-43, mainly due to a lacking of complete differentiation in cardiac phenotype during that time. Although further analyses on novel biomaterials are necessary, these results represent a useful starting point to develop new biomaterial-based scaffolds. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2750-2762, 2018.
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Affiliation(s)
| | | | | | - Francesca Montemurro
- Research Centre "E. Piaggio" and Department of Information Engineering, University of Pisa, Pisa, Italy
| | - Carmelo De Maria
- Research Centre "E. Piaggio" and Department of Information Engineering, University of Pisa, Pisa, Italy
| | - Giovanni Vozzi
- Research Centre "E. Piaggio" and Department of Information Engineering, University of Pisa, Pisa, Italy
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16
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Cai L, Leng L, Li J, Chen X, Regenstein JM, Li X, Lv Y. The Effects of Grass Carp Skin Gelatin and Whey Protein Interactions on Rheological and Textural Properties and Nanostructure. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2017. [DOI: 10.1080/10498850.2017.1302030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Luyun Cai
- College of Food Science and Engineering, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products Food Safety Key Lab of Liaoning Province, Jinzhou, China
| | - Liping Leng
- College of Food Science and Engineering, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products Food Safety Key Lab of Liaoning Province, Jinzhou, China
| | - Jianrong Li
- College of Food Science and Engineering, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products Food Safety Key Lab of Liaoning Province, Jinzhou, China
| | - Xiaoqiang Chen
- College of Food and Pharmaceutical Engineering, Hubei University of Technology, Wuhan, China
| | | | - Xiuxia Li
- College of Food Science and Engineering, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products Food Safety Key Lab of Liaoning Province, Jinzhou, China
| | - Yanfang Lv
- College of Food Science and Engineering, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products Food Safety Key Lab of Liaoning Province, Jinzhou, China
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Chandrasekar A, Suresh A, Sivaraman N, Aswal VK. Trends in small angle neutron scattering of actinide–trialkyl phosphate complexes: a molecular insight into third phase formation. RSC Adv 2016. [DOI: 10.1039/c6ra20175j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
SANS as a molecular probe was used to investigate and quantify the aggregation tendency of metal complexes, facilitating the prediction of third phase formation.
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Affiliation(s)
- Aditi Chandrasekar
- Chemistry Group
- Indira Gandhi Centre for Atomic Research
- HBNI
- Kalpakkam–603102
- India
| | - A. Suresh
- Chemistry Group
- Indira Gandhi Centre for Atomic Research
- HBNI
- Kalpakkam–603102
- India
| | - N. Sivaraman
- Chemistry Group
- Indira Gandhi Centre for Atomic Research
- HBNI
- Kalpakkam–603102
- India
| | - V. K. Aswal
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai–400085
- India
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