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Brokešová J, Niederquell A, Kuentz M, Zámostný P, Vraníková B, Šklubalová Z. Powder cohesion and energy to break an avalanche: Can we address surface heterogeneity? Int J Pharm 2022; 626:122198. [PMID: 36115463 DOI: 10.1016/j.ijpharm.2022.122198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022]
Affiliation(s)
- Jana Brokešová
- Charles University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Akademika Heyrovského, 1203/8, 500 05 Hradec Králové, Czech Republic
| | - Andreas Niederquell
- Charles University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Akademika Heyrovského, 1203/8, 500 05 Hradec Králové, Czech Republic; University of Applied Sciences and Arts Northwestern Switzerland, Institute of Pharma Technology, Hofackerstrasse, 30, CH-4132 Muttenz, Switzerland
| | - Martin Kuentz
- University of Applied Sciences and Arts Northwestern Switzerland, Institute of Pharma Technology, Hofackerstrasse, 30, CH-4132 Muttenz, Switzerland
| | - Petr Zámostný
- UCT Prague, Faculty of Chemical Technology, Department of Organic Technology, Technická, 5, 166 28, Prague 6, Dejvice, Czech Republic
| | - Barbora Vraníková
- Charles University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Akademika Heyrovského, 1203/8, 500 05 Hradec Králové, Czech Republic
| | - Zdenka Šklubalová
- Charles University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Akademika Heyrovského, 1203/8, 500 05 Hradec Králové, Czech Republic.
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Diazonium Modification of Inorganic and Organic Fillers for the Design of Robust Composites: A Review. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01725-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
AbstractThis review focuses on fillers modified with diazonium salts and their use in composites. We reviewed scientific publications and presented information about such diazonium-modified fillers as boron nitride, carbon fillers, cellulose, clay, silica, titanium dioxide, and zeolite. The fillers were divided into two groups. The first group includes those that form covalent bonds with the polymer, while the second includes those that do not form them. This review indicates a tremendous impact of filler modification using diazonium salts on the properties of composites. The review presents examples of the impact of filler on such properties as thermal conductivity, thermal stability, and mechanical properties (e.g., interfacial shear strength, compressive strength, flexural strength). The presented review indicates the enormous potential of composites with diazonium-modified fillers in control drug release, antistatic coatings, electrode materials, photocatalysts, bone tissue engineering scaffolds, fuel cell applications, abrasive tools, and electromechanical strain sensor. We hope that this review will help both research groups and industry in choosing fillers for given types of polymers and obtaining composites with even better properties.
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Buchwald Z, Czarnecka B, Voelkel A. Inverse gas chromatography in the examination of adhesion between tooth hard tissues and restorative dental materials. Sci Rep 2020; 10:13476. [PMID: 32778691 PMCID: PMC7417541 DOI: 10.1038/s41598-020-70480-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 07/28/2020] [Indexed: 11/15/2022] Open
Abstract
The adhesion is a crucial issue in the bonding of dental restorative materials to tooth hard tissues. A strong and durable bond between artificial and natural materials is responsible for the success of the restoration in the oral cavity; therefore it has to be thoroughly examined before new restorative material is introduced to the market and used clinically. Among all methods used to examine bonding strength, most of them require a large number of healthy teeth to be conducted. In this paper, the bond strength between tooth hard tissues (dentin and enamel) and an exemplary restorative composite was examined with the non-conventional method, i.e. inverse gas chromatography. Dentin and enamel from bovine teeth were separated and subjected to the standard preparation procedure using the 3-component etch-and-rinse commercial bonding system. Tissues, as well as commercial restorative composite, were examined using inverse gas chromatography. The work of adhesion between dentin/enamel and composite was calculated. Obtained results were compared with the values of shear bond strength of six configurations, i.e. etched dentin/enamel-composite, primed dentin/enamel-composite, and bonded dentin/enamel-composite. All obtained results proved that there is a correlation between the values describing bond strength obtained from inverse gas chromatography and direct mechanical tests (shear bond strength tests). It proves that inverse gas chromatography is a powerful perspective tool for the examination of bond strength between tooth hard tissues and potential dental materials without using a large number of health tooth tissues.
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Affiliation(s)
- Zuzanna Buchwald
- Institute of Chemical Technology and Engineering, Poznan University of Technology, ul. Berdychowo 4, 60-965, Poznan, Poland.
| | - Beata Czarnecka
- Department of Biomaterials and Experimental Dentistry, Poznan University of Medical Sciences, ul. Bukowska 70, 60-812, Poznan, Poland
| | - Adam Voelkel
- Institute of Chemical Technology and Engineering, Poznan University of Technology, ul. Berdychowo 4, 60-965, Poznan, Poland
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Snela A, Jadach B, Froelich A, Skotnicki M, Milczewska K, Rojewska M, Voelkel A, Prochaska K, Lulek J. Self-emulsifying drug delivery systems with atorvastatin adsorbed on solid carriers: formulation and in vitro drug release studies. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.05.062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Farshchi N, Abbasian A, Larijani K. Is Inverse Gas Chromatography (IGC) a Convenient Method to Determine Compatibility of Rubber Materials? Chromatographia 2019. [DOI: 10.1007/s10337-019-03791-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Adsorption of hydrocarbons commonly found in gasoline residues on household materials studied by inverse gas chromatography. J Chromatogr A 2019; 1594:149-159. [DOI: 10.1016/j.chroma.2019.01.076] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/25/2019] [Accepted: 01/29/2019] [Indexed: 11/17/2022]
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Školáková T, Souchová L, Patera J, Pultar M, Školáková A, Zámostný P. Prediction of drug-polymer interactions in binary mixtures using energy balance supported by inverse gas chromatography. Eur J Pharm Sci 2019; 130:247-259. [DOI: 10.1016/j.ejps.2019.01.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/17/2019] [Accepted: 01/20/2019] [Indexed: 11/30/2022]
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Farshchi N, Abbasian A, Larijani K. Assessment of the Thermodynamic Properties of DL-p-Mentha-1,8-diene, 4-Isopropyl-1-Methylcyclohexene (DL-limonene) by Inverse Gas Chromatography (IGC). J Chromatogr Sci 2018; 56:671-678. [PMID: 29750264 DOI: 10.1093/chromsci/bmy043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 04/23/2018] [Indexed: 11/14/2022]
Abstract
Limonene is a colorless liquid hydrocarbon and had been investigated as a plasticizer for many plastics. Prediction of solubility between different materials is an advantage in many ways, one of the most convenient ways to know the compatibility of materials is to determine the degree of solubility of them in each other. The concept of "solubility parameter" can help practitioners in this way.In this study, inverse gas chromatography (IGC) method at infinite dilution was used for determination of the thermodynamic properties of DL-p-mentha-1,8-diene, 4-Isopropyl-1-methylcyclohexene (DL-limonene). The interaction between DL-limonene and 13 solvents were examined in the temperature range of 63-123°C through the assessment of the thermodynamic sorption parameters, the parameters of mixing at infinite dilution, the weight fraction activity coefficient and the Flory-Huggins interaction parameters. Additionally, the solubility parameter for DL-limonene and the temperature dependence of these parameters was investigated as well.Results show that there is a temperature dependence in solubility parameter, which increases by decreasing temperature. However, there were no specific dependence between interaction parameters and temperature, but chemical structure appeared to have a significant effect on them as well as on the type and strength of intermolecular interactions between DL-limonene and investigated solvents. The solubility parameter δ2 of DL-limonene determined to be 19.20 (J/cm3)0.5 at 25°C.
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Affiliation(s)
- Negin Farshchi
- Department of Polymer Engineering, Engineering Faculty, Science & Research Branch, Islamic Azad University, Tehran, Iran
| | - Ali Abbasian
- Department of Polymer Engineering, Engineering Faculty, Science & Research Branch, Islamic Azad University, Tehran, Iran
| | - Kambiz Larijani
- Department of Chemistry, Basic Science Faculty, Science & Research Branch, Islamic Azad University, Tehran, Iran
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Lebedev VT, Kul’velis YV, Orlova DN, Shamanin VV, Vinogradova LV. Structural features of films based on star-shaped fullerene-containing polystyrenes: Small-angle neutron-scattering study. POLYMER SCIENCE SERIES A 2018. [DOI: 10.1134/s0965545x16050114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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The Physicochemical Characteristics of Prosthetic Materials and Their Influence on Their Clinical Properties. Chromatographia 2017; 80:1761-1769. [PMID: 29213146 PMCID: PMC5698369 DOI: 10.1007/s10337-017-3420-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/20/2017] [Accepted: 10/12/2017] [Indexed: 11/23/2022]
Abstract
The use of elastic materials favours degradation of their surface. The period of their clinical usefulness is then shortened, and their further utilisation in the oral cavity may have the reverse effect. The surface properties of such material as well as the influence of the humidity on their surface are very important as they determine the prosthetic materials behavior in the mouth. The surface of such material should be resistant to water. Inverse gas chromatography is an accurate, sensitive technique for studying surface properties. Thanks to using a unique equipment specially designed for IGC technique, Surface Energy Analyzer, it was possible to characterize the surface at 0 and 80% of humidity. Our results show that increased humidity does not affect surface properties of studied prosthetic materials. Their ability to dispersive and specific interactions change in very limited degree. IGC experiment was also applied for the estimation of Hansen solubility parameters that indicate ability of a material to dispersive, polar, and hydrogen-bonding interactions. Relation between the surface characteristics and practical use of soft lining materials with implications for their clinical usefulness is also discussed.
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The effect of bonding system application on surface characteristics of bovine dentin and enamel. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:1224-1231. [DOI: 10.1016/j.msec.2017.03.205] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 03/21/2017] [Accepted: 03/22/2017] [Indexed: 11/21/2022]
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Milczewska K, Voelkel A, Zwolińska J, Jędro D. Preparation of hybrid materials for controlled drug release. Drug Dev Ind Pharm 2015; 42:1058-65. [PMID: 26559181 DOI: 10.3109/03639045.2015.1107092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Authors obtained hybrid organic-inorganic materials applied in sustained drug delivery. The materials are ibuprofen as a model drug, hydroxyapatite and three different polymers as supports. Influence of the type of employed polymer, an inorganic carrier, on the properties and drug release profiles was estimated. Flory-Huggins interaction parameters, the dispersive component of surface free energy and acid-base characteristic of the surface were used to assess the behavior of the composites in terms of drug release. The experiments were carried out with the use of inverse gas chromatography (IGC), Fourier transform infrared (FTIR) and ultraviolet (UV) techniques. FTIR and ATR-FTIR spectra were collected. The values of [Formula: see text] parameter obtained for all investigated materials (excluding poly(L-lactide) (PLA2)) indicate low or medium activity. The strongest interactions (the lowest values of the Flory-Huggins [Formula: see text] parameter) are observed for PLA2 composition, while the weakest interactions for systems with polyethylene glycol (PEG). Finally, drug release profiles are shown. For materials prepared with Eudragit® (EUD) and PLA, the release of drug was much smaller, which corresponds to lower values of Flory-Huggins parameter. The executed experiments allowed the estimation of the properties of prepared composites. Prepared materials present properties required in sustained drug release and may be successfully applied as drug delivery systems.
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Affiliation(s)
- Kasylda Milczewska
- a Institute of Chemical Technology and Engineering, Poznan University of Technology , Ul. Berdychowo 4 , Poznań , Poland
| | - Adam Voelkel
- a Institute of Chemical Technology and Engineering, Poznan University of Technology , Ul. Berdychowo 4 , Poznań , Poland
| | - Joanna Zwolińska
- a Institute of Chemical Technology and Engineering, Poznan University of Technology , Ul. Berdychowo 4 , Poznań , Poland
| | - Dorota Jędro
- a Institute of Chemical Technology and Engineering, Poznan University of Technology , Ul. Berdychowo 4 , Poznań , Poland
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