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Hamed A, Ashraf S, Mostafa MS, Khalaf M, Yousef H, Mourad I. Development of nanofibrous scaffolds containing polylactic acid modified with turmeric and hydroxyapatite/vivianite nanoparticles for wound dressing applications. Int J Biol Macromol 2024; 259:128624. [PMID: 38061519 DOI: 10.1016/j.ijbiomac.2023.128624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/25/2023] [Accepted: 12/02/2023] [Indexed: 01/14/2024]
Abstract
Damaging the outer layer of the body (the skin) has been a common issue for decades. Fabrication of nanofibrous membranes via the electrospinning technique for the sake of making the wound healing process more facile has caught a lot of interest. For this purpose, a polymeric scaffold of polylactic acid (PLA) was doped with nanoparticles with different concentrations of turmeric/hydroxyapatite/vivianite/graphene oxide. The obtained membrane was tested by XRD, SEM, FTIR, and XPS. The surface topography of the scaffold has experienced changes upon adding different concentrations of the nanoparticles. The contact angle was measured by water droplets. It accentuated change in CA starting from 43.9o for pure condition of PLA to 67.7o for PLA/turmeric/vivianite. The thermogravimetric analysis (TGA) test stated that the PLA scaffold features are thermally stable in relatively high-temperature conditions initiating from room temperature to about 300 °C, meeting the maximum loss in mass of about 5 %. The cell viability was carried out in prepared vitro for the sample which contains PLA/turmeric/vivianite/GO, it was elucidated that the IC50 was around 3060 μg/ml.
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Affiliation(s)
- Amr Hamed
- Department of Physics, Faculty of Science, Suez University, Suez 43518, Egypt
| | - Sherif Ashraf
- Department of Physics, Faculty of Science, Suez University, Suez 43518, Egypt.
| | - Mervat S Mostafa
- Faculty of Nanotechnology for Postgraduate Studies, Cairo University, El-Sheikh Zayed 12588, Egypt; Science and Technology Center of Excellence (STCE), Ministry of Military Production, Cairo, Egypt
| | - Mohamed Khalaf
- Science and Technology Center of Excellence (STCE), Ministry of Military Production, Cairo, Egypt
| | - Hesham Yousef
- Department of Physics, Faculty of Science, Suez University, Suez 43518, Egypt
| | - Ibrahim Mourad
- Department of Physics, Faculty of Science, Suez University, Suez 43518, Egypt
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Teixeira-Santos R, Belo S, Vieira R, Mergulhão FJM, Gomes LC. Graphene-Based Composites for Biomedical Applications: Surface Modification for Enhanced Antimicrobial Activity and Biocompatibility. Biomolecules 2023; 13:1571. [PMID: 38002253 PMCID: PMC10669141 DOI: 10.3390/biom13111571] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/10/2023] [Accepted: 10/19/2023] [Indexed: 11/26/2023] Open
Abstract
The application of graphene-based materials in medicine has led to significant technological breakthroughs. The remarkable properties of these carbon materials and their potential for functionalization with various molecules and compounds make them highly attractive for numerous medical applications. To enhance their functionality and applicability, extensive research has been conducted on surface modification of graphene (GN) and its derivatives, including modifications with antimicrobials, metals, polymers, and natural compounds. This review aims to discuss recent and relevant studies related to advancements in the formulation of graphene composites, addressing their antimicrobial and/or antibiofilm properties and evaluating their biocompatibility, with a primary focus on their biomedical applications. It was concluded that GN surface modification, particularly with compounds intrinsically active against bacteria (e.g., antimicrobial peptides, silver and copper nanomaterials, and chitosan), has resulted in biomaterials with improved antimicrobial performance. Furthermore, the association of GN materials with non-natural polymers provides composites with increased biocompatibility when interfaced with human tissues, although with slightly lower antimicrobial efficacy. However, it is crucial to highlight that while modified GN materials hold huge potential, their widespread use in the medical field is still undergoing research and development. Comprehensive studies on safety, long-term effects, and stability are essential before their adoption in real-world medical scenarios.
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Affiliation(s)
- Rita Teixeira-Santos
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Samuel Belo
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Rita Vieira
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Filipe J. M. Mergulhão
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Luciana C. Gomes
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (S.B.); (R.V.); (F.J.M.M.); (L.C.G.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Buledi JA, Shaikh H, Solangi AR, Mallah A, Shah ZUH, Khan MM, Sanati AL, Karimi-Maleh H, Karaman C, Camarada MB, Niculina DE. Synthesis of NiO-Doped ZnO Nanoparticle-Decorated Reduced Graphene Oxide Nanohybrid for Highly Sensitive and Selective Electrochemical Sensing of Bisphenol A in Aqueous Samples. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Affiliation(s)
- Jamil A. Buledi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Huma Shaikh
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Amber R. Solangi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Arfana Mallah
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
- M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Zia-ul-Hassan Shah
- Department of Soil Science, Sindh Agriculture University, Tandojam 70050, Pakistan
| | - Mir Mehran Khan
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Afsaneh L. Sanati
- Institute of Systems and Robotics, Department of Electrical and Computer Engineering, University of Coimbra, Polo II, 3030-290 Coimbra, Portugal
| | - Hassan Karimi-Maleh
- School of Resources and Environment, University of Electronic Science and Technology of China, Xiyuan Avenue, 611731 Chengdu, P.R. China
- Department of Chemical Engineering, Quchan University of Technology, Quchan 9477177870, Iran
- Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| | - Ceren Karaman
- Vocational School of Technical Sciences, Department of Electricity and Energy, Akdeniz University, Antalya 07070, Turkey
- School of Engineering, Lebanese American University, 1526 Byblos, Lebanon
| | - María Belén Camarada
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
- Centro Investigación en Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Dragoi Elena Niculina
- “Cristofor Simionescu” Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University, Bld. D Mangeron no 73, 700050 Iasi, Romania
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Heinrich L, Schmieder P, Barjenbruch M, Hupfer M. Formation of vivianite in digested sludge and its controlling factors in municipal wastewater treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 854:158663. [PMID: 36096220 DOI: 10.1016/j.scitotenv.2022.158663] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
Engineering solutions to recover phosphorus from municipal wastewater are required to close the anthropogenic phosphorus cycle. After chemical phosphorus elimination by iron, the ferrous iron‑phosphorus mineral vivianite forms in digested sludge, and its separation is being researched at the pilot scale. In this study, sludge samples from 16 wastewater treatment plants (WWTPs) demonstrated that phosphorus bound to biomass and redox-sensitive iron in activated sludge was transformed into other phosphorus binding forms, including vivianite, during digestion. Vivianite quantity was approximated using X-ray diffraction and two sequential extractions. These three independent methods of approximating vivianite quantity were closely related confirming their relationship to the vivianite content in the samples. The digested sludge from three WWTPs exhibited comparatively high levels of vivianite-bound phosphorus approximated between 31 % and 51 % of total phosphorus. The controlling factors of vivianite formation were investigated in order to enhance its formation in digested sludge and increase the amount of phosphorus recoverable as vivianite. They were identified using single and multivariate correlation (MLR), considering the sludge properties, sludge composition, and process parameters within the operating range of the 16 WWTPs. Increasing iron content was verified as the primary predictor of significantly increased vivianite formation (MLR: p < 0.001). In addition, increasing sulphur content was found to be an additional significant factor that decreased vivianite formation (MLR: p < 0.05). Furthermore, a comparison of plants using sulphur-free (FeCl2 and FeCl3) and sulphur-containing (FeSO4 and FeClSO4) precipitants indicated that the latter could increase the sulphur content in digested sludge (one-tailed Welch two-sample t-test: t(14.6) = 2.3, p = 0.02). Thus, by increasing the sulphur content, the use of sulphur-comprising precipitants may counteract vivianite formation, whereas sulphur-free precipitants may facilitate it and, hence, promote vivianite recovery.
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Affiliation(s)
- Lena Heinrich
- Department of Ecohydrology and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 301, 12587 Berlin, Germany; Department of Urban Water Management, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
| | - Peter Schmieder
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Matthias Barjenbruch
- Department of Urban Water Management, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
| | - Michael Hupfer
- Department of Ecohydrology and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 301, 12587 Berlin, Germany
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Physicochemical studies of iron/vanadate doped hydroxyapatite/polycaprolactone nanofibers scaffolds. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Elabbasy MT, Algahtani FD, Al-Harthi HF, Abd El-Kader M, Eldrehmy EH, Abd El-Rahman GI, El-Morsy M, Menazea A. Optimization of compositional manipulation for hydroxyapatite modified with boron oxide and graphene oxide for medical applications. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY 2022; 18:5419-5431. [DOI: 10.1016/j.jmrt.2022.04.088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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