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Armentano I, Barbanera M, Belloni E, Crognale S, Lelli D, Marconi M, Calabrò G. Design and Analysis of a Novel Ultraviolet-C Device for Surgical Face Mask Disinfection. ACS OMEGA 2022; 7:34117-34126. [PMID: 36188306 PMCID: PMC9520726 DOI: 10.1021/acsomega.2c03426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/25/2022] [Indexed: 05/09/2023]
Abstract
This paper deals with the design of a compact sanitization device and the definition of a specific protocol for UV-C disinfection of a surgical face mask. The system was designed considering the material properties, face mask shape, and UV-C light distribution. DIALux software was used to evaluate the irradiance distribution provided by the lamps emitting in the UV-C range. The irradiance needed for UV-C-decontaminated bacteria and virus, and other contaminating pathogens, without compromising their integrity and guaranteeing inactivation of the bacteria, was evaluated. The face mask's material properties were analyzed with respect to UV-C exposure in terms of physicochemical properties, breathability, and bacterial filtration performance. Information on the effect of time-dependent passive decontamination at room temperature storage was provided. Single and multiple cycles of UV-C sanitization did not adversely affect respirator breathability and bacterial filtration efficiency. This multidisciplinal approach may provide important information on how it is possible to correctly sanitize a face mask and, in case of shortage, safely reuse the face mask.
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Affiliation(s)
- Ilaria Armentano
- Department
of Economics, Engineering, Society and Business Organization (DEIM), University of Tuscia, Viterbo 01100, Italy
| | - Marco Barbanera
- Department
of Economics, Engineering, Society and Business Organization (DEIM), University of Tuscia, Viterbo 01100, Italy
| | - Elisa Belloni
- Department
of Engineering, University of Perugia, Perugia 06125, Italy
| | - Silvia Crognale
- Department
for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Viterbo 01100, Italy
| | - Davide Lelli
- Department
for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Viterbo 01100, Italy
| | - Marco Marconi
- Department
of Economics, Engineering, Society and Business Organization (DEIM), University of Tuscia, Viterbo 01100, Italy
| | - Giuseppe Calabrò
- Department
of Economics, Engineering, Society and Business Organization (DEIM), University of Tuscia, Viterbo 01100, Italy
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Hussain A, Hussain F, Arshad MS, Abbas N, Nasir S, Mudassir J, Mahmood F, Ali E. Ibuprofen loaded centrifugally spun microfibers for quick relief of inflammation in rats. Drug Dev Ind Pharm 2022; 47:1786-1793. [PMID: 35343341 DOI: 10.1080/03639045.2022.2059500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The conventional dosage forms (tablets, capsules), of ibuprofen has less potential in suppression of pain and inflammation due to their slow dissolution rates and lower bioavailability. Aim of this study was to fabricate fibrous solid dispersion of ibuprofen for improved dissolution rate and quick therapeutic action. Drug loaded microfibers were fabricated using centrifugal melt spinning (CMS) technique from the physical mixture of sucrose, ibuprofen and a hydrophilic polymer, PVP. These fibers were characterized by SEM, PXRD, DSC, and FTIR spectroscopy. The selected formulation was also pressed into tablets by direct compression method followed by its in-vitro and in-vivo characterization. The production yield of fibers was 75 ± 2% with an average diameter 15 ± 5 µm. The drug loading efficiency (DLE) was 85 ± 5%. The tablets dissolved rapidly (<40s). In-vitro dissolution studies have shown >85% of ibuprofen dissolved from tablet within first 2 min which was ∼5 times quicker than drug alone. Dissolution efficiency has improved from 0.63 of ibuprofen to 0.95 of that in fibers with ∼7 times reduction in mean dissolution time. PXRD, andDSC have shown amorphous state of ibuprofen in the formulation and FTIR spectra demonstrated no interaction of drug with excipients . In-vivo anti-inflammatory studies using rabbits revealed a significant (p <0.05) reduction in paw volume (mm) in the groups treated with fibrous formulation. This study concludes that microfibers produced by centrifugal melt spinning has improved dissolution rates and bioavailability of ibuprofen. Incorporation of polymer in the formulations improves the production yield and drug loading efficiency of microfibers.
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Affiliation(s)
- Amjad Hussain
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan (54500)
| | - Fahad Hussain
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan (54500)
| | | | - Nasir Abbas
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan (54500)
| | - Sidra Nasir
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan (54500)
| | - Jahanzeb Mudassir
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan (60800)
| | - Faisal Mahmood
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan (54500)
| | - Ejaz Ali
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan (54500)
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Zhang X, Lu Y. Centrifugal Spinning: An Alternative Approach to Fabricate Nanofibers at High Speed and Low Cost. POLYM REV 2014. [DOI: 10.1080/15583724.2014.935858] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wang Z, Macosko CW, Bates FS. Tuning surface properties of poly(butylene terephthalate) melt blown fibers by alkaline hydrolysis and fluorination. ACS APPLIED MATERIALS & INTERFACES 2014; 6:11640-11648. [PMID: 24967614 DOI: 10.1021/am502398u] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The wetting properties of poly(butylene terephthalate) (PBT) melt blown fibers were tuned by alkaline hydrolysis and subsequent fluorination. Fiber mats were exposed to a NaOH methanol solution for controlled periods of time at several temperatures, resulting in surface hydrolysis (h-PBT). Subsequent simple solution chemistry was applied to the h-PBT fibers, leading to fluorination of the surface (f-PBT) and the transformation of the wetting properties of the material. Electron microscopy revealed that hydrolysis leads to a textured surface that is retained in the fluorinated product. Sessile drop wetting measurements demonstrated superhydrophilicity for the h-PBT fiber mats and sticky superhydrophobicity with the f-PBT fiber mat.
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Affiliation(s)
- Zaifei Wang
- Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota 55455, United States
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Savoji H, Hadjizadeh A, Maire M, Ajji A, Wertheimer MR, Lerouge S. Electrospun Nanofiber Scaffolds and Plasma Polymerization: A Promising Combination Towards Complete, Stable Endothelial Lining for Vascular Grafts. Macromol Biosci 2014; 14:1084-95. [DOI: 10.1002/mabi.201300545] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 02/10/2014] [Indexed: 12/31/2022]
Affiliation(s)
- Houman Savoji
- Laboratory of Endovascular Biomaterials (LBeV); Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM); 900 Saint Denis Street Montreal QC H2X 0A9 Canada
- Institute of Biomedical Engineering; École Polytechnique de Montréal; Montreal QC H3C 3A7 Canada
| | - Afra Hadjizadeh
- Department of Chemical Engineering; École Polytechnique de Montréal; Montreal QC H3C 3A7 Canada
| | - Marion Maire
- Laboratory of Endovascular Biomaterials (LBeV); Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM); 900 Saint Denis Street Montreal QC H2X 0A9 Canada
| | - Abdellah Ajji
- Institute of Biomedical Engineering; École Polytechnique de Montréal; Montreal QC H3C 3A7 Canada
- Department of Chemical Engineering; École Polytechnique de Montréal; Montreal QC H3C 3A7 Canada
| | - Michael R. Wertheimer
- Institute of Biomedical Engineering; École Polytechnique de Montréal; Montreal QC H3C 3A7 Canada
- Department of Engineering Physics; École Polytechnique de Montréal; Montreal QC H3C 3A7 Canada
| | - Sophie Lerouge
- Laboratory of Endovascular Biomaterials (LBeV); Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM); 900 Saint Denis Street Montreal QC H2X 0A9 Canada
- Department of Mechanical Engineering; École de technologie supérieure; Montreal QC H3C 1K3 Canada
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Yang P, Yang W. Surface Chemoselective Phototransformation of C–H Bonds on Organic Polymeric Materials and Related High-Tech Applications. Chem Rev 2013; 113:5547-94. [PMID: 23614481 DOI: 10.1021/cr300246p] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Peng Yang
- Key Laboratory
of Applied Surface
and Colloid Chemistry, Ministry of Education, College of Chemistry
and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Wantai Yang
- The State Key Laboratory of
Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing
100029, China
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Gérard E, Bessy E, Hénard G, Ducoroy L, Verpoort T, Marchand-Brynaert J. Surface modification of poly(butylene terephthalate) nonwoven by photochemistry and biofunctionalization with peptides for blood filtration. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24975] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Gérard E, Bessy E, Salvagnini C, Rerat V, Momtaz M, Hénard G, Marmey P, Verpoort T, Marchand-Brynaert J. Surface modifications of polypropylene membranes used for blood filtration. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.01.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yang C, Sun K, Liu J, Wang H, Cao Y. Zwitterionic sulfobetaine-modified non-woven fabric for blood filtration. POLYM INT 2010. [DOI: 10.1002/pi.2868] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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10
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Light-Induced Functionalization of Amphiphilic Block Copolymers: Application to Nanoparticles for Drug Targeting. ACTA ACUST UNITED AC 2010. [DOI: 10.4028/www.scientific.net/msf.636-637.759] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photografting of bifunctional photolinker on biocompatible amphiphilic copolymers, such as PCL-b-PEGs and PLGA-b-PEGs, has been developed as a practical and versatile strategy for the materials functionalisation. Depending on the copolymer nature (block length, % of crystallinity) and the experimental conditions we could selectively direct the grafting on the hydrophilic PEG segments. The resulting copolymers were further derivatized with molecules of interest (RGD-peptides, LDV-peptides, “home-made”peptidomimetics, mannose derivatives,…) by substitution of the O-succinimidyl ester of the photolinker. The derivatization rates were controlled by radiolabelling, colorimetric assay and XPS spectroscopy. The functionalized copolymers were used in the formulation of nanoparticles displaying the ligands on their outer-shell. This nanoparticulate system was successfully employed for the oral vectorisation of antigen and for the targeted delivery of an anticancer drug.
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Rerat V, Pourcelle V, Devouge S, Nysten B, Marchand-Brynaert J. Surface grafting on poly(ethylene terephthalate) track-etched microporous membrane by activation with trifluorotriazine: Application to the biofunctionalization with GRGDS peptide. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23778] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Pourcelle V, Freichels H, Stoffelbach F, Auzély-Velty R, Jérôme C, Marchand-Brynaert J. Light Induced Functionalization of PCL-PEG Block Copolymers for the Covalent Immobilization of Biomolecules. Biomacromolecules 2009; 10:966-74. [DOI: 10.1021/bm900027r] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vincent Pourcelle
- Université catholique de Louvain, Unité de Chimie Organique et Médicinale (CHOM), Bâtiment Lavoisier, place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium, Center for Education and Research on Macromolecules (CERM), Université de Liège, Sart-Tilman B6, B-4000 Liège, Belgium, and Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP53, 38041 Grenoble cedex 9, France
| | - Hélène Freichels
- Université catholique de Louvain, Unité de Chimie Organique et Médicinale (CHOM), Bâtiment Lavoisier, place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium, Center for Education and Research on Macromolecules (CERM), Université de Liège, Sart-Tilman B6, B-4000 Liège, Belgium, and Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP53, 38041 Grenoble cedex 9, France
| | - François Stoffelbach
- Université catholique de Louvain, Unité de Chimie Organique et Médicinale (CHOM), Bâtiment Lavoisier, place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium, Center for Education and Research on Macromolecules (CERM), Université de Liège, Sart-Tilman B6, B-4000 Liège, Belgium, and Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP53, 38041 Grenoble cedex 9, France
| | - Rachel Auzély-Velty
- Université catholique de Louvain, Unité de Chimie Organique et Médicinale (CHOM), Bâtiment Lavoisier, place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium, Center for Education and Research on Macromolecules (CERM), Université de Liège, Sart-Tilman B6, B-4000 Liège, Belgium, and Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP53, 38041 Grenoble cedex 9, France
| | - Christine Jérôme
- Université catholique de Louvain, Unité de Chimie Organique et Médicinale (CHOM), Bâtiment Lavoisier, place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium, Center for Education and Research on Macromolecules (CERM), Université de Liège, Sart-Tilman B6, B-4000 Liège, Belgium, and Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP53, 38041 Grenoble cedex 9, France
| | - Jacqueline Marchand-Brynaert
- Université catholique de Louvain, Unité de Chimie Organique et Médicinale (CHOM), Bâtiment Lavoisier, place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium, Center for Education and Research on Macromolecules (CERM), Université de Liège, Sart-Tilman B6, B-4000 Liège, Belgium, and Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP53, 38041 Grenoble cedex 9, France
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Devouge S, Conti J, Goldsztein A, Gosselin E, Brans A, Voué M, De Coninck J, Homblé F, Goormaghtigh E, Marchand-Brynaert J. Surface functionalization of germanium ATR devices for use in FTIR-biosensors. J Colloid Interface Sci 2008; 332:408-15. [PMID: 19150721 DOI: 10.1016/j.jcis.2008.12.045] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2008] [Revised: 12/01/2008] [Accepted: 12/17/2008] [Indexed: 11/25/2022]
Abstract
Biosensors based on intrinsic detection methods have attracted growing interest. The use of Fourier transform infra-red (FTIR) spectroscopy with the attenuated internal total reflection (ATR) mode, in the biodetection context, requires appropriate surface functionalization of the ATR optical element. Here, we report the direct grafting of a thin organic layer (about 20 A depth) on the surface of a germanium crystal. This covering, constructed with novel amphiphilic molecules 2b (namely, 2,5,8,11,14,17,20-heptaoxadocosan-22-yl-3-(triethoxysilyl) propylcarbamate), is stable for several hours under phosphate buffered saline (PBS) flux and features protein-repulsive properties. Photografting of molecule 5 (namely, O-succinimidyl 4-(p-azidophenyl)butanoate) affords the activated ATR element, ready for the covalent fixation of receptors, penicillin recognizing proteins BlaR-CTD for instance. The different steps of the previous construction have been monitored by water contact angle (theta(w)) measurements, spectroscopic ellipsometry (covering depth), X-ray photoelectron spectroscopy (XPS) by using a fluorinated tag for the control of surface reactivity, and FTIR-ATR spectroscopy for the structural analysis of grafted molecules. Indeed, contrarily to silicon device, germanium device offers a broad spectral window (1000-4000 cm(-1)) and thus amide I and II absorption bands can be recorded. This work lays the foundations for the construction of novel FTIR biosensors.
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Affiliation(s)
- Sabrina Devouge
- Unité de Chimie Organique et Médicinale, Université Catholique de Louvain, Bâtiment Lavoisier, Place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
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A graftable LDV peptidomimetic: Design, synthesis and application to a blood filtration membrane. Bioorg Med Chem Lett 2008; 18:1084-90. [DOI: 10.1016/j.bmcl.2007.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2007] [Accepted: 12/04/2007] [Indexed: 11/23/2022]
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