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Gutiérrez Rafael BJ, Zaca Moran O, Delgado Macuil RJ, Martínez Gutiérrez H, García Juárez M, Lopez Gayou V. Study of the Incorporation of Gel and Aloe vera Peel Extract in a Polymer Matrix Based on Polyvinylpyrrolidone. Polymers (Basel) 2024; 16:1998. [PMID: 39065315 PMCID: PMC11281014 DOI: 10.3390/polym16141998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 06/21/2024] [Accepted: 07/02/2024] [Indexed: 07/28/2024] Open
Abstract
The development of dressings based on electrospun membranes with polymers and plant extracts is an interesting approach to skin regeneration, providing elements to prevent contamination and a matrix that accelerates the healing process. We developed a membrane composed of polyvinylpyrrolidone (PVP), gel and Aloe vera peel extract via the electrospinning technique. Additionally, an optimal ratio of PVP/Av gel/Av skin extract was determined to facilitate membrane formation. Electrospun membranes were obtained with fiber diameters of 1403 ± 57.4 nm for the PVP and 189.2 ± 11.4 nm for PVP/Av gel/Av peel extract, confirming that the use of extracts generally reduced the fiber diameter. The incorporation of gel and peel extract of Aloe vera into the electrospun membrane was analyzed via FTIR and UV-Vis spectroscopies. FTIR revealed the presence of functional groups associated with phenolic compounds such as aloin, aloe-emodin, emodin and aloesin, which was confirmed by UV-Vis, revealing absorption bands corresponding to aloin, phenols and carbonyl groups. This finding provides evidence of the effective integration and prevalence of bioactive compounds of a phenolic and polysaccharide nature from the gel and the Av skin extract in the electrospun fibers, resulting in an advanced membrane that could improve and accelerate the healing process and protect the wound from bacterial infections.
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Affiliation(s)
- Britania Janet Gutiérrez Rafael
- Departamento de Nanobiotecnología y Biosensores, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional (IPN-CIBA), Santa Inés Tecuexcomac 90700, Tlaxcala, Mexico; (B.J.G.R.); (O.Z.M.); (R.J.D.M.)
| | - Orlando Zaca Moran
- Departamento de Nanobiotecnología y Biosensores, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional (IPN-CIBA), Santa Inés Tecuexcomac 90700, Tlaxcala, Mexico; (B.J.G.R.); (O.Z.M.); (R.J.D.M.)
| | - Raúl Jacobo Delgado Macuil
- Departamento de Nanobiotecnología y Biosensores, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional (IPN-CIBA), Santa Inés Tecuexcomac 90700, Tlaxcala, Mexico; (B.J.G.R.); (O.Z.M.); (R.J.D.M.)
| | - Hugo Martínez Gutiérrez
- Centro de Nanociencias y Micro y Nanotecnologías CNMN IPN, Av. Luis Enrique Erro s/n, Nueva Industrial Vallejo, Gustavo A. Madero, Ciudad de México 07738, Mexico;
| | - Marcos García Juárez
- Centro de Investigación en Reproducción Animal, Universidad Autónoma de Tlaxcala-CINVESTAV, Plaza Hidalgo Ote. 9, Cuarto Barrio, Panotla 90140, Tlaxcala, Mexico;
| | - Valentin Lopez Gayou
- Departamento de Nanobiotecnología y Biosensores, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional (IPN-CIBA), Santa Inés Tecuexcomac 90700, Tlaxcala, Mexico; (B.J.G.R.); (O.Z.M.); (R.J.D.M.)
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Rauwel E, Arya G, Praakle K, Rauwel P. Use of Aloe Vera Gel as Media to Assess Antimicrobial Activity and Development of Antimicrobial Nanocomposites. Int J Mol Sci 2024; 25:5599. [PMID: 38891787 PMCID: PMC11171552 DOI: 10.3390/ijms25115599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/01/2024] [Accepted: 05/17/2024] [Indexed: 06/21/2024] Open
Abstract
Antimicrobial resistance is a menace to public health on a global scale. In this regard, nanomaterials exhibiting antimicrobial properties represent a promising solution. Both metal and metal oxide nanomaterials are suitable candidates, even though their mechanisms of action vary. Multiple antimicrobial mechanisms can occur simultaneously or independently; this includes either direct contact with the pathogens, nanomaterial uptake, oxidative stress, ion release, or any of their combinations. However, due to their specific properties and more particularly fast settling, existing methods to study the antimicrobial properties of nanoparticles have not been specifically adapted in some cases. The development of methodologies that can assess the antimicrobial properties of metallic nanomaterials accurately is necessary. A cost-effective methodology with a straightforward set-up that enables the easy and quick assessment of the antimicrobial properties of metal nanoparticles with high accuracy has been developed. The methodology is also capable of confirming whether the killing mechanism involves ionic diffusion. Finally, Aloe Vera gel showed good properties for use as a medium for the development of antimicrobial ointment.
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Affiliation(s)
- Erwan Rauwel
- Institute of Veterinary Medicine & Animal Sciences, Kreutzwaldi 62, 51006 Tartu, Estonia;
- Institute of Forestry and Engineering, Kreutzwaldi 56/1, 51006 Tartu, Estonia; (G.A.); (P.R.)
| | - Geeta Arya
- Institute of Forestry and Engineering, Kreutzwaldi 56/1, 51006 Tartu, Estonia; (G.A.); (P.R.)
| | - Kristi Praakle
- Institute of Veterinary Medicine & Animal Sciences, Kreutzwaldi 62, 51006 Tartu, Estonia;
| | - Protima Rauwel
- Institute of Forestry and Engineering, Kreutzwaldi 56/1, 51006 Tartu, Estonia; (G.A.); (P.R.)
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Adel Alawadi H, Andarzbakhsh K, Rastegari A, Mohammadi Z, Aghsami M, Saadatpour F. Chitosan-Aloe Vera Composition Loaded with Zinc Oxide Nanoparticles for Wound Healing: In Vitro and In Vivo Evaluations. IET Nanobiotechnol 2024; 2024:6024411. [PMID: 38863973 PMCID: PMC11111295 DOI: 10.1049/2024/6024411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 04/28/2024] [Accepted: 05/06/2024] [Indexed: 06/13/2024] Open
Abstract
Global concerns due to the negative impacts of untreatable wounds, as well as the growing population of these patients, emphasize the critical need for advancements in the wound healing materials and techniques. Nanotechnology offers encouraging avenues for improving wound healing process. In this context, nanoparticles (NPs) and certain natural materials, including chitosan (CS) and aloe vera (AV), have demonstrated the potential to promote healing effects. The objective of this investigation is to assess the effect of novel fabricated nanocomposite gel containing CS, AV, and zinc oxide NPs (ZnO NPs) on the wound healing process. The ZnO NPs were synthesized and characterized by X-ray diffraction and electron microscopy. Then, CS/AV gel with different ratios was prepared and loaded with ZnO NPs. The obtained formulations were characterized in vitro based on an antimicrobial study, and the best formulations were used for the animal study to assess their wound healing effects in 21 days. The ZnO NPs were produced with an average 33 nm particle size and exhibited rod shape morphology. Prepared gels were homogenous with good spreadability, and CS/AV/ZnO NPs formulations showed higher antimicrobial effects against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. The wound healing findings showed significant wound area reduction in the CS/AV/ZnO NPs group compared to negative control at day 21. Histopathological assessment revealed the advantageous impact of this formulation across various stages of the wound healing process, including collagen deposition (CS/AV/ZnO NPs (2 : 1), 76.6 ± 3.3 compared to negative control, 46.2 ± 3.7) and epitheliogenesis (CS/AV/ZnO NPs (2 : 1), 3 ± 0.9 compared to negative control, 0.8 ± 0.8). CS/AV gel-loaded ZnO NPs showed significant effectiveness in wound healing and would be suggested as a promising formulation in the wound healing process. Further assessments are warranted to ensure the robustness of our findings.
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Affiliation(s)
- Hasanain Adel Alawadi
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Iran University of Medical Sciences, Tehran, Iran
| | - Kamyab Andarzbakhsh
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ali Rastegari
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Iran University of Medical Sciences, Tehran, Iran
| | - Zohreh Mohammadi
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Aghsami
- Department of Pharmacology and Toxicology, School of Pharmacy, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Saadatpour
- Molecular Virology Lab, Department of Microbiology, School of Biology, College of Science, University of Tehran, Tehran, Iran
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Irfan J, Ali A, Hussain MA, Haseeb MT, Naeem-Ul-Hassan M, Hussain SZ. Citric acid cross-linking of a hydrogel from Aloe vera ( Aloe barbadensis M.) engenders a pH-responsive, superporous, and smart material for drug delivery. RSC Adv 2024; 14:8018-8027. [PMID: 38454944 PMCID: PMC10918532 DOI: 10.1039/d4ra00095a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/26/2024] [Indexed: 03/09/2024] Open
Abstract
The current research work is based on the evaluation of a citric acid (CA) cross-linked Aloe vera (Aloe barbadensis M.) leaf hydrogel (CL-ALH) for pH-dependent and sustained drug release application. The CA was used in different concentrations (1.25, 2.5, 5.0, and 10.0%) to cross-link the ALH using homogenous reaction conditions. The synthesis of CL-ALH was confirmed through Fourier transform and nuclear magnetic resonance spectroscopic studies. The thermal analysis indicated that the ALH and CL-ALH were stable and decomposed in two steps. The scanning electron microscopic images of CL-ALH confirmed its porous nature due to the presence of interconnected channeling. The swelling of CL-ALH was evaluated at pH 1.2, 6.8, and 7.4 as well as in deionized water (DW). High swelling of CL-ALH was observed in DW, and at pH 7.4 and 6.8 whereas, less swelling of CL-ALH was witnessed at pH 1.2. CL-ALH also exhibited swelling/deswelling behavior in DW and ethanol, DW and normal saline, and at pH 7.4 and 1.2. Tablets were prepared from CL-ALH as a release retarding agent demonstrating the sustained release of venlafaxine hydrochloride (VFX) for 8 h. Whereas, VFX was released within 4 h from the ALH-based tablet formulation (un-cross-linked material) indicating the prolonged and sustained release behavior of CL-ALH. The VFX was released from CL-ALH tablets and followed zero-order kinetics. The mechanism followed by VFX release from CL-ALH tablets was non-Fickian diffusion. The in vivo fate of the tablet formulation was observed through an X-ray study. The CL-ALH-based tablet safely passed through the stomach of a stray dog without any significant erosion and then disintegrated in the small intestine and colon. These findings confirmed that the CL-ALH is an effective excipient for designing a sustained-release drug delivery system for the small intestine and colon.
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Affiliation(s)
- Jaffar Irfan
- Institute of Chemistry, University of Sargodha Sargodha 40100 Pakistan
| | - Arshad Ali
- Institute of Chemistry, University of Sargodha Sargodha 40100 Pakistan
| | - Muhammad Ajaz Hussain
- Centre for Organic Chemistry, School of Chemistry, University of the Punjab Lahore 54590 Pakistan
| | | | | | - Syed Zajif Hussain
- Department of Chemistry, SBA School of Science & Engineering, Lahore University of Management Sciences Lahore Cantt. 54792 Pakistan
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5
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Chelu M, Musuc AM, Popa M, Calderon Moreno J. Aloe vera-Based Hydrogels for Wound Healing: Properties and Therapeutic Effects. Gels 2023; 9:539. [PMID: 37504418 PMCID: PMC10379830 DOI: 10.3390/gels9070539] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/26/2023] [Accepted: 06/30/2023] [Indexed: 07/29/2023] Open
Abstract
Aloe vera-based hydrogels have emerged as promising platforms for the delivery of therapeutic agents in wound dressings due to their biocompatibility and unique wound-healing properties. The present study provides a comprehensive overview of recent advances in the application of Aloe vera-based hydrogels for wound healing. The synthesis methods, structural characteristics, and properties of Aloe vera-based hydrogels are discussed. Mechanisms of therapeutic agents released from Aloe vera-based hydrogels, including diffusion, swelling, and degradation, are also analyzed. In addition, the therapeutic effects of Aloe vera-based hydrogels on wound healing, as well as the reduction of inflammation, antimicrobial activity, and tissue regeneration, are highlighted. The incorporation of various therapeutic agents, such as antimicrobial and anti-inflammatory ones, into Aloe vera-based hydrogels is reviewed in detail. Furthermore, challenges and future prospects of Aloe vera-based hydrogels for wound dressing applications are considered. This review provides valuable information on the current status of Aloe vera-based hydrogels for the delivery of therapeutic agents in wound dressings and highlights their potential to improve wound healing outcomes.
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Affiliation(s)
| | - Adina Magdalena Musuc
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania; (M.C.); (M.P.)
| | | | - Jose Calderon Moreno
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania; (M.C.); (M.P.)
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Koka P, Chandramohan Y, Perumal E, Kavarthapu A, Dhanasekaran A, Chandran A, Gunasekaran K. Fabrication of ECM Mimicking Bioactive Scaffold: A Regenerative Approach for MSC Mediated Applications. Stem Cells Int 2023; 2023:6282987. [PMID: 37251796 PMCID: PMC10224790 DOI: 10.1155/2023/6282987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 03/19/2023] [Accepted: 04/27/2023] [Indexed: 05/31/2023] Open
Abstract
Biomaterials are feasible resources that aids to replace damaged structures in our bodies. The most biologically active flora is Aloe vera which has many bioactive compounds that are anti-inflammatory, antimicrobial, and have ECM mimicking protein content which helps in the healing of wounds and also acts as an ECM factor for stem cell homing and differentiation. The Aloe vera containing 10 w/v of gelatin was lyophilized. Scaffolds had sharper morphology, greater hydrophilic properties, and a Young's modulus of 6.28 MPa and 15.9 MPa of higher tensile strength are desirable. In tissue engineering and regenerative medicine, biologically active scaffolds have been producing hopeful outcomes in both restoration and replacement, respectively. The objective of the present investigation is to test the idea that incorporating gelatin to Aloe vera scaffolds might enhance their structure, good biocompatibility, and possibly even bioactivity. The SEM picture of the composite scaffold revealed pore walls. The scaffolds had linked pores with diameters ranging from 93 to 296 μm. Aloe vera and the matrix interact well, according to the FTIR study, which could lead to a reduction in the amount of water-binding sites and a reduction in the material's ability to absorb water. Aloe vera with 10% gelatin (AV/G) scaffold was investigated for different biological reactions of human gingival tissue mesenchymal stem cells (MSCs) in terms of cell proliferation, morphology, and cell migration. The results demonstrated the potential of the AV/G scaffold as a biomaterial that offers new insight in the field of tissue engineering.
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Affiliation(s)
- Pavani Koka
- Centre for Biotechnology, Anna University, Chennai, 600 025 Tamil Nadu, India
- Bioscreen Instrumentation Pvt Ltd, Ashok Nagar, Chennai, Tamil Nadu, India
| | - Yamini Chandramohan
- Centre for Biotechnology, Anna University, Chennai, 600 025 Tamil Nadu, India
| | - Elumalai Perumal
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Avinash Kavarthapu
- Department of Periodontology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Anuradha Dhanasekaran
- Cancer and Stem Cell Biology Laboratory, Centre for Biotechnology, Anna University, Chennai, 600 025 Tamil Nadu, India
| | - Anusha Chandran
- Department of Biotechnology, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, India
| | - Krishnamoorthy Gunasekaran
- Department of Medical Biochemistry, College of Health Sciences, Dambi Dollo University, P.O. Box 360, Kelam Welega Zone, Oromia Region, Ethiopia
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Chelu M, Popa M, Ozon EA, Pandele Cusu J, Anastasescu M, Surdu VA, Calderon Moreno J, Musuc AM. High-Content Aloe vera Based Hydrogels: Physicochemical and Pharmaceutical Properties. Polymers (Basel) 2023; 15:polym15051312. [PMID: 36904552 PMCID: PMC10007233 DOI: 10.3390/polym15051312] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/28/2023] [Accepted: 03/03/2023] [Indexed: 03/08/2023] Open
Abstract
The present research focuses on the physicochemical and pharmacotechnical properties of new hydrogels obtained using allantoin, xanthan gum, salicylic acid and different concentrations of Aloe vera (5, 10, 20% w/v in solution; 38, 56, 71 wt% in dry gels). The thermal behavior of Aloe vera composite hydrogels was studied using DSC and TG/DTG analyses. The chemical structure was investigated using different characterization methods (XRD, FTIR and Raman spectroscopies) and the morphology of the hydrogels was studied SEM and AFM microscopy. Pharmacotechnical evaluation on tensile strength and elongation, moisture content, swelling and spreadability was also completed. Physical evaluation confirmed that the appearance of the prepared Aloe vera based hydrogels was homogeneous and the color varied from pale beige to deep opaque beige with increasing Aloe vera concentration. All other evaluation parameters, e.g., pH, viscosity, spreadability and consistency were found to be adequate in all hydrogel formulations. SEM and AFM images show that the structure of the hydrogels condensed into homogeneous polymeric solids with the addition of Aloe vera, in accordance with the decrease in peak intensities observed via XRD analysis. These results suggest interactions between the hydrogel matrix and Aloe vera as observed via FTIR and TG/DTG and DSC analyses. Considering that Aloe vera content higher than 10% (w/v) did not stimulate further interactions, this formulation (FA-10) can be used for further biomedical applications.
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Affiliation(s)
- Mariana Chelu
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Monica Popa
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
- Correspondence: (M.P.); (J.C.M.); (A.M.M.)
| | - Emma Adriana Ozon
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania
| | - Jeanina Pandele Cusu
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Mihai Anastasescu
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Vasile Adrian Surdu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Jose Calderon Moreno
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
- Correspondence: (M.P.); (J.C.M.); (A.M.M.)
| | - Adina Magdalena Musuc
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
- Correspondence: (M.P.); (J.C.M.); (A.M.M.)
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Altinkaynak C, Haciosmanoglu E, Ekremoglu M, Hacioglu M, Özdemir N. Anti-microbial, anti-oxidant and wound healing capabilities of Aloe vera-incorporated hybrid nanoflowers. J Biosci Bioeng 2023; 135:321-330. [PMID: 36806412 DOI: 10.1016/j.jbiosc.2023.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 02/20/2023]
Abstract
The active ingredients of Aloe vera have attracted attention for their potential use in nanotechnology-based medical applications and biomaterial production. It has many therapeutic applications in modern world. This study used Aloe vera extract in different concentrations to synthesize Aloe vera-incorporated hybrid nanoflowers (AV-Nfs). The most uniform morphology in the nanoflowers obtained was at a concentration of 2 mL. The AV-Nfs were well characterized by scanning electron microscopy, X-ray spectroscopy, Fourier transform infrared spectroscopy, and X-ray diffraction (XRD). The highest peroxidase-mimicking activity of the components was 1.488 EU/mg at 60°C and pH 6. The DPPH assay determined the antioxidant activity of the components and the MTT assay tested on CCD-1072Sk fibroblast cell line determined the effect of AV-Nfs on cell proliferation. Separate treatment of AV-Nfs with Cu3(PO4)2·3H2O significantly increased cell proliferation according to free Aloe vera and CuSO4. In vitro wound healing results showed that AV-Nfs could significantly close wounds compared to free Aloe vera. In this study, AV-Nfs showed antimicrobial activity against Staphylococcus epidermidis, Enterococcus faecalis, Escherichia coli and Klebsiella pneumoniae at minimum inhibitory concentration of 625 μg/mL, suggesting that AV-Nfs may be used in wound healing applications with enhanced biological properties. AV-Nfs showed no activity against the yeast Candida albicans.
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Affiliation(s)
- Cevahir Altinkaynak
- Department of Plant and Animal Production, Avanos Vocational School, Nevsehir Haci Bektas Veli University, 50500 Nevsehir, Turkey.
| | - Ebru Haciosmanoglu
- Department of Biophysics, Faculty of Medicine, Bezmialem Vakif University, 34093 Istanbul, Turkey
| | - Murat Ekremoglu
- Department of Medical Biochemistry, Faculty of Medicine, Istinye University, 34010 Istanbul, Turkey
| | - Mayram Hacioglu
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, 34116 Istanbul, Turkey
| | - Nalan Özdemir
- Department of Chemistry, Faculty of Science, Erciyes University, 38039 Kayseri, Turkey
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Akintayo DC, Munzeiwa WA, Jonnalagadda SB, Omondi B. Ring-opening polymerization of lactides and ε-caprolactone catalyzed by Zn(II) aryl carboxylate complexes supported by 4-pyridinyl schiff base ligands. Heliyon 2023; 9:e13514. [PMID: 36846710 PMCID: PMC9950825 DOI: 10.1016/j.heliyon.2023.e13514] [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: 11/08/2022] [Revised: 01/26/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
Synthesis and catalytic studies of aryl carboxylate Zn (II) complexes is reported. Reaction of substituted (E)-N-phenyl-1-(pyridin-4-yl)methanimine with a methanolic solution of Zn(CH3COO)2 and substituted aryl carboxylate co-ligands gave heteroleptic Zn(II) complexes; [Zn(C6H5COO)2(L1)]2 (1), [Zn(C7H7COO)2(L1)]2 (2), [Zn (4-F-C6H4COO)2(L1)]2 (3), [Zn(C6H5COO)2(L2)]2 (4), [Zn(C7H7COO)2(L2)]2 (5), [Zn (4-F-C6H4COO)2(L2)]2 (6), [Zn(C6H5COO)2(L3)]2 (7), [Zn(C7H7COO)2(L3)]2 (8), [Zn (4-F-C6H4COO)2(L3)]2 (9). The molecular structures of complexes 1 and 4 are dinuclear with the zinc atom in complex 1 adopting a distorted trigonal bipyramidal geometry in a bi-metallacycle while complex 4 is square pyramidal where all four benzoate ligands bridge the zinc metals in a paddle wheel arrangement. All complexes successfully initiated mass/bulk ring-opening polymerization (ROP) of ϵ-caprolactone (ϵ-CL) and lactides (LAs) monomers with or without alcohol co-initiators at elevated temperatures. Complexes 1, 4 and 6 containing the unsubstituted benzoate co-ligands were the most active in their triad; with complex 4 being the most active (k app) of 0.3450 h-1. The physicochemical properties of the polymerization products of l-lactide and rac-lactide in toluene revealed melting temperatures (Tm) between 116.58 °C and 188.03 °C, and decomposition temperatures between 278.78 °C and 331.32 °C suggestive of an isotactic PLA with a metal capped end.
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Affiliation(s)
- Damilola C. Akintayo
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban, 4000, South Africa
| | - Wisdom A. Munzeiwa
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban, 4000, South Africa,Chemistry Department, Bindura University of Science Education, Private Bag 1020, Bindura, Zimbabwe
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban, 4000, South Africa
| | - Bernard Omondi
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban, 4000, South Africa,Corresponding author.
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Krzywonos M, Piwowar-Sulej K. Plant-Based Innovations for the Transition to Sustainability: A Bibliometric and in-Depth Content Analysis. Foods 2022; 11:foods11193137. [PMID: 36230212 PMCID: PMC9561981 DOI: 10.3390/foods11193137] [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: 08/09/2022] [Revised: 09/18/2022] [Accepted: 09/29/2022] [Indexed: 01/03/2023] Open
Abstract
Plants maintain the ecological equilibrium of the earth and stabilize the ecosystem. Today, traditional commodities and new value-added markets can be served simultaneously. There is significant biosource and bioprocess innovation for biobased industrial products. Furthermore, plant-based innovation is associated with the transition to sustainability. This study performed a bibliometric and in-depth content analysis to review plant-based innovations in the research field between 1995 and 2022. A set of 313 articles was identified from the Scopus and Web of Science databases. Different analytical scientometric tools (topic mapping and overlay visualization networks) were used to analyze 124 articles; the most influential countries, institutions, authors, journals and articles were identified. Through in-depth studies, based on the grounded theory approach, five leading research areas related to plant-based innovation were determined: (1) agricultural/environmental innovation, (2) plant-based food or feed innovation, (3) innovation within the medical/pharmaceutical research area, (4) technology-related innovation and (5) economic/business aspects of plant-based innovations. Future research directions include exploring less examined and new topics, such as the sustainability implications of incorporating various plant-based foods and Industry 4.0 in plant-based innovation, and linking and developing findings from different research areas.
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Affiliation(s)
- Małgorzata Krzywonos
- Department of Process Management, Wrocław University of Economics and Business, Komandorska 118/120, 53-345 Wrocław, Poland
- Correspondence:
| | - Katarzyna Piwowar-Sulej
- Department of Labor, Capital and Innovation, Wrocław University of Economics and Business, Komandorska 118/120, 53-345 Wrocław, Poland
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Soltani M, Alizadeh P. Aloe vera incorporated starch-64S bioactive glass-quail egg shell scaffold for promotion of bone regeneration. Int J Biol Macromol 2022; 217:203-218. [PMID: 35839948 DOI: 10.1016/j.ijbiomac.2022.07.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/05/2022]
Abstract
Simultaneous promotion of osteoconductive and osteoinductive characteristics through combining bioactive glasses with natural polymers is still a challenge in bone tissue engineering. Starch, 64S bioactive glass (BG), aloe vera (AV) and quail eggshell powder (QE) were utilized to achieve biodegradable, bioactive, biocompatible and mechanically potent multifunctional scaffolds, using freeze-drying mechanism. Cell viability for starch-BG-AV-QE scaffolds at 3 and 7 day intervals was reported to be over 95 %. Acridine orange staining was employed to study live/dead cells cultured on the scaffolds. The high sufficiency of starch-BG-AV-QE scaffolds in osteogenic differentiation and extracellular matrix mineralization was confirmed through alkaline phosphatase activity and alizarin red staining assessments after 7 and 14 days of cell culture. High compressive strength, managed biodegradability and expression of osteocalcin and osteopontin as late markers of osteogenic differentiation were also reached in the range of 30-75 % for starch-BG-AV-QE scaffolds. Hence, starch-BG-AV-QE scaffolds with ideal physico-mechanical and biological characteristics can be considered as promising candidates for promotion of bone regeneration.
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Affiliation(s)
- Mohammad Soltani
- Department of Materials Science and Engineering, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
| | - Parvin Alizadeh
- Department of Materials Science and Engineering, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran.
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12
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Application of biomolecules modification strategies on PEEK and its composites for osteogenesis and antibacterial properties. Colloids Surf B Biointerfaces 2022; 215:112492. [PMID: 35430485 DOI: 10.1016/j.colsurfb.2022.112492] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/24/2022] [Accepted: 04/04/2022] [Indexed: 12/24/2022]
Abstract
As orthopedic and dental implants, polyetheretherketone (PEEK) is expected to be a common substitute material of titanium (Ti) and its alloys due to its good biocompatibility, chemical stability, and elastic modulus close to that of bone tissue. It could avoid metal allergy and bone resorption caused by the stress shielding effect of Ti implants, widely studied in the medical field. However, the lack of biological activity is not conducive to the clinical application of PEEK implants. Therefore, the surface modification of PEEK has increasingly become one of the research hotspots. Researchers have explored various biomolecules modification methods to effectively enhance the osteogenic and antibacterial activities of PEEK and its composites. Therefore, this review mainly summarizes the recent research of PEEK modified by biomolecules and discusses the further research directions to promote the clinical transformation of PEEK implants.
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In-silico predicting as a tool to develop plant-based biomedicines and nanoparticles: Lycium shawii metabolites. Biomed Pharmacother 2022; 150:113008. [PMID: 35489282 DOI: 10.1016/j.biopha.2022.113008] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/11/2022] [Accepted: 04/19/2022] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION AND PURPOSE In silico approach helps develop biomedicines and is useful for exploring the pharmacology of potential therapeutics using computer-simulated models. In vitro assays were used to determine the anti-microbial and cytotoxic efficacies of silver nanoparticles (AgNPs) synthesized with the shrub Lycium shawii. METHODS In silico predicting was performed to assess the L. shawii metabolites identified using QTOF-LCMS for their pharmacological properties. L. shawii mediated AgNPs were synthesized and characterized (FTIR, TEM, SEM, DLS and EDX). The anti-bacterial efficacies of L. shawii extract, AgNPs, and penicillin-conjugated AgNPs (pen-AgNPs) were determined. The cytotoxicity of the AgNPs was measured against colorectal cancer cell line (HCT116), normal breast epithelium (MCF 10 A), and breast cancer cell line (MDA MB 231). RESULTS AND DISCUSSION Five molecules (costunolide, catechin, emodin, lyciumaside, and aloe emodin 11-O-rhamnoside) were detected in the L. shawii extract. AgNPs (69 nm) were spherical with crystallographic structure. All three agents prepared showed inhibitory activity against the tested bacteria, the most efficacious being pen-AgNPs. High cytotoxicity of AgNPs (IC50 62 μg/ml) was observed against HCT116, IC50 was 78 μg/ml for MCF 10 A, and 250 μg/ml for MDA MB 231, of which cells showed apoptotic features under TEM examination. The in silico approach indicated that the carbonic anhydrase IX enzyme was the target molecule mediating anti-cancer and anti-bacterial activities and that emodin was the metabolite in action. CONCLUSIONS Combining in vitro studies and in silico molecular target prediction helps find novel therapeutic agents. Among L. shawii metabolites, emodin is suggested for further studies as an agent for drug development against pathogenic bacteria and cancer.
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Bhar B, Chakraborty B, Nandi SK, Mandal BB. Silk-based phyto-hydrogel formulation expedites key events of wound healing in full-thickness skin defect model. Int J Biol Macromol 2022; 203:623-637. [PMID: 35120938 DOI: 10.1016/j.ijbiomac.2022.01.142] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/25/2021] [Accepted: 01/23/2022] [Indexed: 12/15/2022]
Abstract
Immense socio-economic burden of chronic wound demands effective, low-cost strategies for wound care. Herein, we have developed a chemical crosslinker-free phyto-hydrogel by encapsulating phytochemicals of Aloe vera mucilage extract (AVM) in the self-assembled polymeric chains of two different silk fibroin (SF) proteins (from Bombyx mori and Antheraea assamensis). Additionally, polyvinylpyrrolidone (PVP) has been used as a stabilizer that also contributed to the mucoadhesive property of the composite (SAP; made of SF, AVM, and PVP) hydrogel. The physicochemical properties of the hydrogel were evaluated and compared with SF hydrogel containing only SF proteins without any additives. The biocompatibility assessment of the hydrogel under in vitro conditions has shown improved cellular proliferative and migratory responses, suggesting faster tissue repairability of the hydrogel. A detailed in vivo comparative study with a commercially available DuoDERM® gel revealed that SAP hydrogel not only promoted wound closure but also showed better deposition and remodeling of the extracellular matrix. Moreover, the hydrogel also demonstrated its ability to downregulate pro-inflammatory markers (IL-1β, TNF-α) and upregulation of anti-inflammatory markers (IL-10, TGF-β) at the early stage of healing. Therefore, the bioactive proteins-carbohydrates composite efficiently accelerates skin regeneration and possesses great translational potential to offer a low-cost alternative wound care therapeutic.
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Affiliation(s)
- Bibrita Bhar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Bijayashree Chakraborty
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata 700037, West Bengal, India
| | - Samit K Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata 700037, West Bengal, India
| | - Biman B Mandal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India; Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India; School of Health Science and Technology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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15
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Ran R, Peng Y, Xiao L, Wang Y, Zhang T, Liu Z, Li Z. Fabrication of antimicrobial poly(lactic‐
co
‐glycolic acid)/silk fibroin/aloe anthraquinone fibrous membranes for potential application of wound healing. J Appl Polym Sci 2022. [DOI: 10.1002/app.52394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ruilong Ran
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Yan Peng
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Lang Xiao
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Yanlai Wang
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Tonghua Zhang
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Zhongwen Liu
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Zhi Li
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
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16
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Singh P, Singh KRB, Verma R, Prasad P, Verma R, Das SN, Singh J, Singh RP. Preparation, antibacterial activity, and electrocatalytic detection of hydrazine based on biogenic CuFeO 2/PANI nanocomposites synthesized using Aloe barbadensis miller. NEW J CHEM 2022. [DOI: 10.1039/d2nj00913g] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study reports the synthesis of B-CuFeO2 nanocomposites (NCs) and B-CuFeO2/PANI NCs from Aloe vera gel extract and their utility for label-free detection of hydrazine and their antibacterial efficiency.
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Affiliation(s)
- Pooja Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Kshitij RB Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Rahul Verma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Priyanka Prasad
- Department of Botany, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Ranjana Verma
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Subha Narayan Das
- Department of Botany, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Ravindra Pratap Singh
- Department of Biotechnology, Faculty of Science, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
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17
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Leitgeb M, Kupnik K, Knez Ž, Primožič M. Enzymatic and Antimicrobial Activity of Biologically Active Samples from Aloe arborescens and Aloe barbadensis. BIOLOGY 2021; 10:biology10080765. [PMID: 34439997 PMCID: PMC8389549 DOI: 10.3390/biology10080765] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 07/16/2021] [Accepted: 07/24/2021] [Indexed: 01/23/2023]
Abstract
Simple Summary Antimicrobial resistance is one of the major threats to public health, and additional concerns are reduced efficacy and increased toxicity of synthetically derived drugs. Hence, it is all the more important to research new antimicrobials derived from natural sources. Aloe spp. have long been acknowledged in traditional medicine, as their ability of treating skin and digestive problems, wound healing, anti-inflammatory, antimicrobial and other promising properties are known. This study presents the content of various bioactive substances in samples of two Aloe spp., Aloe arborescens and Aloe barbadensis, and their enzymatic, antioxidant and antimicrobial activity. Obtained bioactive compounds with antimicrobial effect have a huge potential to inhibit the growth of microorganisms that are extremely susceptible to gaining resistance and could be used in versatile applications in the cosmetics, food, medical and pharmaceutical industries. Abstract Recently, the use of Aloe species has become very widespread. These are extensively used as a nutraceutical in a variety of health care products and food supplements. In addition, the occurrence of the quickly adaptable microorganisms, particularly bacteria, which can develop resistance to antibiotics, is a major problem for public health, and therefore, it is necessary to search for new antimicrobials. In our study, the content of total phenols, proanthocyanidins, and proteins in fresh and lyophilized samples of A. arborescens and A. barbadensis and their ethanol extracts was investigated. Furthermore, enzymatic and antioxidant activity of samples were studied. Since antimicrobial activity of fresh samples was determined in our latest research, a more detailed study of antimicrobial effectiveness of A. arborescens and A. barbadensis (lyophilized, extracts) was performed. Ethanol extracts in particular contain higher concentrations of bioactive substances and show the topmost antioxidant activity. The novelty of the study refers to the observation of industrially important enzyme activities such as α-amylase, cellulase, lipase, peroxidase, protease, and transglutaminase in the samples as well as the microbial growth inhibition rates determination (MGIR) at different concentrations of added aloe samples. All samples inhibited the growth of all tested microbial cells. MIC90 for A. arborescens and A. barbadensis were also determined in case of B. cereus, P. aeruginosa, P. fluorescens, and S. aureus. The results of our study tend to give credence to the popular use of both aloes in medicine and in the cosmetic, food, and pharmaceutical industries.
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Affiliation(s)
- Maja Leitgeb
- Laboratory for Separation Processes and Product Design, Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia; (K.K.); (Ž.K.); (M.P.)
- Faculty of Medicine, University of Maribor, Taborska ulica 8, SI-2000 Maribor, Slovenia
- Correspondence: ; Tel.: +386-2-2294-462
| | - Kaja Kupnik
- Laboratory for Separation Processes and Product Design, Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia; (K.K.); (Ž.K.); (M.P.)
- Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia
| | - Željko Knez
- Laboratory for Separation Processes and Product Design, Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia; (K.K.); (Ž.K.); (M.P.)
- Faculty of Medicine, University of Maribor, Taborska ulica 8, SI-2000 Maribor, Slovenia
| | - Mateja Primožič
- Laboratory for Separation Processes and Product Design, Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia; (K.K.); (Ž.K.); (M.P.)
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18
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Verma C, Gupta A, Singh S, Somani M, Sharma A, Singh P, Bhan S, Dey A, Rymbai R, Lyngdoh A, Nonglang FP, Anjum S, Gupta B. Bioactive Khadi Cotton Fabric by Functional Designing and Immobilization of Nanosilver Nanogels. ACS APPLIED BIO MATERIALS 2021; 4:5449-5460. [PMID: 35006726 DOI: 10.1021/acsabm.1c00159] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The antimicrobial finishing is the most suitable alternative for designing medical textiles for biomedical applications. The present investigation aims at the preparation of skin-contacting khadi cotton fabric that would prevent microbial infection and offer excellent skin compatibility. A simple approach has been followed for the preparation of bioactive nanogels for antimicrobial finishing of the khadi cotton fabric. Bioactive nanogels were synthesized by using aloe vera (AV) as a reducing agent for silver ions in the presence of polyvinyl alcohol (PVA). PVA stabilizes the growth of silver nanoparticles, which is influenced by the variation in the reaction time and the temperature. Nanogels were characterized by transmission electron microscopy and scanning electron microscopy analyses. The nanogels exhibited strong antimicrobial behavior against both Staphylococcus aureus and Escherichia coli, as confirmed by the colony count method. Almost 100% antibacterial behavior was observed for the nanosilver content of 10 mM. The nanogel-finished khadi fabric showed bactericidal properties against both S. aureus and E. coli. The nanogel-finished fabric exhibited high hydrophilicity allowing complete water droplet penetration within 10 s as compared to 136 s in virgin fabric. Moreover, the skin irritation study of the fabric on male Swiss albino mice did not show any appearance of dermal toxicity. These results demonstrated that the bioactive finished khadi fabric is appropriate as skin contacting material in human health care.
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Affiliation(s)
- Chetna Verma
- Bioengineering Laboratory, Department of Textile & Fibre Engineering, Indian Institute of Technology, New Delhi 110016, India
| | - Anushka Gupta
- Bioengineering Laboratory, Department of Textile & Fibre Engineering, Indian Institute of Technology, New Delhi 110016, India
| | - Surabhi Singh
- Bioengineering Laboratory, Department of Textile & Fibre Engineering, Indian Institute of Technology, New Delhi 110016, India
| | - Manali Somani
- Bioengineering Laboratory, Department of Textile & Fibre Engineering, Indian Institute of Technology, New Delhi 110016, India
| | - Ankita Sharma
- Bioengineering Laboratory, Department of Textile & Fibre Engineering, Indian Institute of Technology, New Delhi 110016, India
| | - Pratibha Singh
- Bioengineering Laboratory, Department of Textile & Fibre Engineering, Indian Institute of Technology, New Delhi 110016, India
| | - Surya Bhan
- Department of Biochemistry, North Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Ankita Dey
- Department of Biochemistry, North Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Ridashisha Rymbai
- Department of Biochemistry, North Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Antonia Lyngdoh
- Department of Biochemistry, North Eastern Hill University, Shillong 793022, Meghalaya, India
| | | | - Sadiya Anjum
- Bioengineering Laboratory, Department of Textile & Fibre Engineering, Indian Institute of Technology, New Delhi 110016, India
| | - Bhuvanesh Gupta
- Bioengineering Laboratory, Department of Textile & Fibre Engineering, Indian Institute of Technology, New Delhi 110016, India
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19
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Guleken Z, Depciuch J, Ege H, İlbay G, Kalkandelen C, Ozbeyli D, Bulut H, Sener G, Tarhan N, Erdem Kuruca S. Spectrochemical and biochemical assay comparison study of the healing effect of the Aloe vera and Hypericum perforatum loaded nanofiber dressings on diabetic wound. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 254:119639. [PMID: 33743307 DOI: 10.1016/j.saa.2021.119639] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 02/12/2021] [Accepted: 02/20/2021] [Indexed: 06/12/2023]
Abstract
Diabetic wounds have a slow healing process and easy to be infected. In addition to current drug treatments, supportive approaches are needed for diabetic wound treatment. In this study, we aimed to load Aloe Vera (AV) and Hypericum perforatum oil (HPO) with PCL/Ge (Poly (ɛ-caprolactone)/Gelatine) polymeric biodegradable by electrospinning method into nanofiber dressings on an experimental diabetic wound model to compare the diabetic wound healing effect. Changes in the amount and chemical structure of phospholipids, proteins, and lipids were investigated in the blood and serum samples of the animals using Fourier transform infrared (FTIR) analysis. To evaluate biological events associated with the wound repair process in inflammatory phase we used oxidant and antioxidant status to determine the healing status of wounds such as Total antioxidant status (TAS), Total oxidant level (TOS) and tumor necrosis factor alpha (TNF-α) levels. TOS level increased in DM groups and decreased in the AV and HPO group. Oxidative stress index decreased and TNF-α level increased in the HPO group. FTIR spectra showed changes in the phospholipids, proteins, and carbon chain of lipids in the whole blood as well as serum of DM rats. FTIR spectra combined with Principal component analysis (PCA) showed, that treated DM rats by AV and HPO caused return chemical structure of blood and serum to this observed in control group. Higher similarity with control group for HPO rats was observed. HPO is better than AV in the alternative for healing on diabetic wound. Thus, we have demonstrated that IR spectroscopy and multivariate data analysis and biochemical assays are consistent and correlative with each other.
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Affiliation(s)
- Zozan Guleken
- Department of Physiology, Uskudar University Faculty of Medicine, Istanbul, Turkey.
| | - Joanna Depciuch
- Institute of Nuclear Physics Polish Academy of Science, 31-342 Krakow, Poland.
| | - Hasan Ege
- Institute of Health Sciences, Department of Physiology Istanbul University Cerrahpaşa, Turkey
| | - Gül İlbay
- Department of Physiology, Faculty of Medicine, Kocaeli University 41380 Kocaeli, Turkey
| | - Cevriye Kalkandelen
- Istanbul University Cerrahpaşa, Vocational School Technical Science Istanbul, Turkey
| | - Dilek Ozbeyli
- Department of Medical Pathology Techniques, Vocational School of Health Services, Marmara University, Istanbul, Turkey
| | - Huri Bulut
- Department of Medical Biochemistry, Faculty of Medicine Istinye University, Istanbul, Turkey
| | - Goksel Sener
- Marmara University, Faculty of Pharmacy, Department of Pharmacology, Istanbul, Turkey
| | - Nevzat Tarhan
- Uskudar University, Department of Psychiatry, Istanbul, Turkey NP Brain Hospital, İstanbul, Turkey
| | - Serap Erdem Kuruca
- Department of Physiology, Istanbul University Faculty of Medicine, Istanbul, Turkey
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20
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Darzi S, Paul K, Leitan S, Werkmeister JA, Mukherjee S. Immunobiology and Application of Aloe Vera-Based Scaffolds in Tissue Engineering. Int J Mol Sci 2021; 22:1708. [PMID: 33567756 PMCID: PMC7915752 DOI: 10.3390/ijms22041708] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 12/12/2022] Open
Abstract
Aloe vera (AV), a succulent plant belonging to the Liliaceae family, has been widely used for biomedical and pharmaceutical application. Its popularity stems from several of its bioactive components that have anti-oxidant, anti-microbial, anti-inflammatory and even immunomodulatory effects. Given such unique multi-modal biological impact, AV has been considered as a biomaterial for regenerative medicine and tissue engineering applications, where tissue repair and neo-angiogenesis are vital. This review outlines the growing scientific evidence that demonstrates the advantage of AV as tissue engineering scaffolds. We particularly highlight the recent advances in the application of AV-based scaffolds. From a tissue engineering perspective, it is pivotal that the implanted scaffolds strike an appropriate foreign body response to be well-accepted in the body without complications. Herein, we highlight the key cellular processes that regulate the foreign body response to implanted scaffolds and underline the immunomodulatory effects incurred by AV on the innate and adaptive system. Given that AV has several beneficial components, we discuss the importance of delving deeper into uncovering its action mechanism and thereby improving material design strategies for better tissue engineering constructs for biomedical applications.
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Affiliation(s)
- Saeedeh Darzi
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (S.D.); (K.P.); (S.L.); (J.A.W.)
| | - Kallyanashis Paul
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (S.D.); (K.P.); (S.L.); (J.A.W.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
| | - Shanilka Leitan
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (S.D.); (K.P.); (S.L.); (J.A.W.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
| | - Jerome A. Werkmeister
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (S.D.); (K.P.); (S.L.); (J.A.W.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
| | - Shayanti Mukherjee
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton 3168, Australia; (S.D.); (K.P.); (S.L.); (J.A.W.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
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21
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Sharma S, Kumar K. Aloe-vera leaf extract as a green agent for the synthesis of CuO nanoparticles inactivating bacterial pathogens and dye. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1791719] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Saurabh Sharma
- Department of Chemistry, Career Point University, Hamirpur, H.P., India
| | - Kuldeep Kumar
- Department of Chemistry, Career Point University, Hamirpur, H.P., India
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22
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Ekambaram R, Dharmalingam S. Fabrication and evaluation of electrospun biomimetic sulphonated PEEK nanofibrous scaffold for human skin cell proliferation and wound regeneration potential. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111150. [PMID: 32600734 DOI: 10.1016/j.msec.2020.111150] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 12/19/2022]
Abstract
Regeneration of skin wound is a challenging process since functional and architectural restoration of the damaged skin tissue is an arduous task. The use of springing up biomaterials with nano-topographic and bio-mimicking characteristics resembling natural skin's extra cellular matrix (ECM) would be a favorable approach to regenerate such an injured skin tissue. In this study an attempt has been carried out to design and develop sulphonated polyether ether ketone (SPEEK) nanofibrous scaffold to explore its role on skin cell proliferation potential. 2 h-SPEEK portrayed the highest proliferative potential for HaCaT keratinocytes and fibroblasts. It was aimed for the tailored release of bio-actives from the spatiotemporally designed Aloe vera incorporated 2 h-SPEEK nanoscaffold to accelerate the skin wound regeneration. FTIR, EDX and XRD analyses revealed the effective incorporation of Aloe vera in the electrospun nanofibers. SEM analysis revealed the nano-topographical morphology with highly porous, dense and interconnected fibrous structures mimicking the skin ECM. The regulated delivery of Aloe vera demonstrated the biocompatibility of the nanofibrous scaffold in skin keratinocytes (HaCaT) and fibroblasts (3T3) cells through in vitro analysis proving its non-toxic properties. Further, the fabricated nanoscaffolds exhibited excellent anti-microbial efficacy towards the tested human skin pathogenic microbes. The results of in vivo studies in Wistar rat model exhibited scar-less wound healing with complete wound closure. Thus, this nanofiber based drug delivery system implicitly acts as a skin like ECM, bio-mimicking the topographical and chemical cues of the natural skin tissues paving way for a complete regeneration and integration of the injured area strengthening the functional restoration of insulted cells around the wound area.
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23
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Deb A, Saikia R, Chowdhury D. Nano-Bioconjugate Film from Aloe vera To Detect Hazardous Chemicals Used in Cosmetics. ACS OMEGA 2019; 4:20394-20401. [PMID: 31815243 PMCID: PMC6894156 DOI: 10.1021/acsomega.9b03280] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 10/14/2019] [Indexed: 05/04/2023]
Abstract
It is of utmost importance to detect hazardous chemicals that affect human health. In this work, a simple method has been developed using a traditional medicinal herb Aloe vera as a carbon source to fabricate a nano-bioconjugate film. The nano-bioconjugate system comprises of A. vera gel itself and sodium alginate to form a fluorescent nano-bioconjugate film. The film was successfully used as an optical "turn-off" sensor in detecting analytes viz. para-Aminobenzoic acid (PABA), benzophenone, hydroquinone, and propylparaben, which are used in cosmetics and are listed as "red-listed" chemicals. The applicability of the fluorescent film in detecting these hazardous chemicals was even assessed with some locally purchased cosmetic samples. Mechanistic insight into the fluorescent quenching shown by nano-bioconjugate film is also discussed. Developments of such a detection system from sustainable sources make it an interesting option for fabricating sensors for hazardous chemicals.
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Affiliation(s)
- Ankita Deb
- Material Nanochemistry Laboratory,
Physical Sciences Division, Institute of
Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India
| | - Rasna Saikia
- Material Nanochemistry Laboratory,
Physical Sciences Division, Institute of
Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India
| | - Devasish Chowdhury
- Material Nanochemistry Laboratory,
Physical Sciences Division, Institute of
Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India
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24
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Lead bioactive compounds of Aloe vera as potential anticancer agent. Pharmacol Res 2019; 148:104416. [PMID: 31470079 DOI: 10.1016/j.phrs.2019.104416] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/23/2019] [Accepted: 08/26/2019] [Indexed: 12/17/2022]
Abstract
Aloe vera (Aloe barbadensis Miller) is a perennial succulent medicinal plant. It has been used as a traditional or folk medicine for thousands of years and claimed that it possesses wound and burn healing activities, and anti-inflammatory as well as immunomodulatory effects. In recent years, the use of Aloe vera has been growing as a dietary supplement. The pre-clinical studies over the last couple of decades uncover the potential therapeutic activities of Aloe vera and its bioactive compounds, especially against neoplastic disease. Such investigations indicate the possible preventive as well as therapeutic effects of Aloe vera against cancer. Here, we discuss the crucial bioactive compounds of Aloe vera that have been harnessed against cancer and also address several mechanisms of action of these lead bioactive compounds compared to other standard drugs involved in cancer prevention and treatment.
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25
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Silva SS, Rodrigues LC, Reis RL. An alternative approach to prepare alginate/acemannan 3D architectures. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0690-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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26
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Baghersad S, Hajir Bahrami S, Mohammadi MR, Mojtahedi MRM, Milan PB. Development of biodegradable electrospun gelatin/aloe-vera/poly(ε‑caprolactone) hybrid nanofibrous scaffold for application as skin substitutes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:367-379. [DOI: 10.1016/j.msec.2018.08.020] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 07/22/2018] [Accepted: 08/06/2018] [Indexed: 12/17/2022]
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27
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Ramasamy Raja V, Rani Rosaline D, Suganthi A, Rajarajan M. Ultrasonic assisted synthesis with enhanced visible-light photocatalytic activity of NiO/Ag 3VO 4 nanocomposite and its antibacterial activity. ULTRASONICS SONOCHEMISTRY 2018; 44:73-85. [PMID: 29680630 DOI: 10.1016/j.ultsonch.2018.02.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/02/2018] [Accepted: 02/06/2018] [Indexed: 05/22/2023]
Abstract
The NiO/Ag3VO4 nanocomposite photocatalysts were developed by ultrasonic assisted preparation method to study the photocatalytic activity under visible light irradiation. The samples were characterized by UV-DRS, XRD, FT-IR, XPS, SEM, EDX, TEM, EIS and BET analysis. The photocatalytic activity of NiO/Ag3VO4 nanocomposite for the photodegradation of 4-Nitro Phenol (4-NP) and Rose Bengal (RB) under visible light irradiation was studied and it is observed that the activity has been much higher than that of the pure Ag3VO4. DRS spectrum shows the absorption edge of NiO-Ag3VO4 in visible region of spectrum. The formation of cubic structured NiO and orthorhombic structured Ag3VO4 was confirmed by powder X-ray diffraction analysis. The results of XPS analysis confirmed the coexistence of NiO and Ag3VO4 in the NiO/Ag3VO4 composite. The specific surface area and pore structure of the prepared samples were measured by BET. Enhanced charge separation efficiency was confirmed by electrochemical impedance spectroscopy (EIS) measurements. The kinetics of the NiO/Ag3VO4 nanocomposite was proposed to investigate the intervened effects of NiO to Ag3VO4 on the promotion of photocatalytic property. NiO/Ag3VO4 was found to be stable and reusable without appreciable loss of catalytic activity up to four consecutive cycles. A possible electron-hole transfer mechanism at the NiO/Ag3VO4 interface is proposed. It also showed effective and efficient bactericidal activities against Staphylococcus aureus, Streptococcus, Proteus and Escherichia coli bacteria. Our results provide some new insights on the performance of visible light photocatalysts on environmental remediation.
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Affiliation(s)
- V Ramasamy Raja
- P.G & Research Department of Chemistry, Thiagarajar College, Madurai 625 009, Tamil Nadu, India
| | - D Rani Rosaline
- P.G & Research Department of Chemistry, Thiagarajar College, Madurai 625 009, Tamil Nadu, India
| | - A Suganthi
- P.G & Research Department of Chemistry, Thiagarajar College, Madurai 625 009, Tamil Nadu, India; Mother Teresa Women's University, Kodaikanal 624 102, Tamilnadu, India.
| | - M Rajarajan
- Madurai Kamaraj University, Madurai 625 021, Tamilnadu, India
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28
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Komatsu D, Mistura DV, Motta A, Domingues JA, Hausen MA, Duek E. Development of a membrane of poly (L-co-D,L lactic acid-co-trimethylene carbonate) with aloe vera: An alternative biomaterial designed to improve skin healing. J Biomater Appl 2017; 32:311-320. [DOI: 10.1177/0885328217719854] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The search for new therapies and drugs that act as topical agents to relieve pain and control the infectious processes in burns always attracted interest in clinical trials. As an alternative to synthetic drugs, the use of natural extracts is useful in the development of new strategies and formulations for improving the life quality. The aim of this study was to develop a wound dressing using Poly(L-co-D,L lactic acid-co-TMC) (PLDLA-co-TMC) containing aloe vera (AV). This natural plant extract is known for its modulatory effects under healing process. The membrane of PLDLA-co-TMC+aloe vera was prepared at different concentrations of AV (5, 10, 15 and 50%). The FTIR showed no change in the PLDLA-co-TMC spectrum after AV addition, while the swelling test showed changes only in PLDLA-co-TMC+AV at 50%. The wettability measurements showed decrease in the contact angle in all samples after the AV addition in the polymer, while the AV release test showed that PLDLA-co-TMC+50%AV sample has higher AV release rate than the sample with other AV concentrations. The SEM analysis showed that AV was homogeneously distributed at 5% only. Tensile tests demonstrated an increase in the Young's modulus and a reduction in the elongation till rupture of the PLDLA-co-TMC after the addition of AV. Biocompatibility in vitro evaluation with fibroblast cells seeded in the membranes of PLDLA-co-TMC+AV showed that the cells were able to adhere, proliferate and maintain mitochondrial activity in all AV concentrations tested. Due to the known skin medicinal properties attributed to AV and the results here obtained, we suggest that after in vivo trials, the PLDLA-co-TMC+AV should be a promising biomaterial for application as a device for skin curative and healing agent.
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Affiliation(s)
- Daniel Komatsu
- Faculdade de Ciencias Medicas e da Saude, Pontificia Universidade Catolica de Sao Paulo, São Paulo, Brazil
| | - Daniel V Mistura
- Universidade Estadual de Campinas Instituto de Biologia, São Paulo, Brazil
| | - Adriana Motta
- Faculdade de Ciencias Medicas e da Saude, Pontificia Universidade Catolica de Sao Paulo, São Paulo, Brazil
| | | | - Moema A Hausen
- Faculdade de Ciencias Medicas e da Saude, Pontificia Universidade Catolica de Sao Paulo, São Paulo, Brazil
| | - Eliana Duek
- Faculdade de Ciencias Medicas e da Saude, Pontificia Universidade Catolica de Sao Paulo, São Paulo, Brazil
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29
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da Luz TG, Sales V, da Rocha RDC. Evaluation of technology potential of Aloe arborescens biopolymer in galvanic effluent treatment. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 2017:48-57. [PMID: 29698220 DOI: 10.2166/wst.2018.082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Biopolymers have the ability to form gels that can be used in coagulation/flocculation processes. For this reason, the present work evaluated the application of the Aloe arborescens gel as a biopolymer in the treatment of the effluent generated in galvanic processes. The centesimal, thermogravimetric and texture profiles, as well as the functional groups and the biopolymer's performance in the treatment was analyzed. The performance results were evaluated by central composite rotational design 23. The variables biopolymer concentration, aluminum sulphate and initial pH of the effluent were significant at the confidence level of 95%. The Cr(VI) removal efficiency ranged from 6.37% to 37.74%; significant reductions in dissolved solids (89.80% to 94.13%) and suspended solids (71.06% to 90.00%) were also observed. The treated effluent still presents parameters above the regulatory limits stated by the legislation, therefore, the biopolymer could be used as initial treatment for solids removal.
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Affiliation(s)
- Tayla Gabriela da Luz
- Chemistry Department, Federal University of Technology - Paraná, Pato Branco 85503-390, Brazil E-mail:
| | - Valber Sales
- Chemistry Department, Federal University of Technology - Paraná, Pato Branco 85503-390, Brazil E-mail:
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30
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An Optimized Methodology to Observe Internal Microstructures of Aloe veraby Cryo-Scanning Electron Microscope. Appl Microsc 2016. [DOI: 10.9729/am.2016.46.2.76] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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31
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Ghayempour S, Montazer M, Mahmoudi Rad M. Simultaneous encapsulation and stabilization of Aloe vera extract on cotton fabric for wound dressing application. RSC Adv 2016. [DOI: 10.1039/c6ra22485g] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Utilization of some herbal products in wound dressing for rapid healing with no side effects is a highly interesting task.
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Affiliation(s)
- S. Ghayempour
- Textile Engineering Department
- Functional Fibrous Structures & Environmental Enhancement (FFSEE)
- Amirkabir University of Technology
- Tehran
- Iran
| | - M. Montazer
- Textile Engineering Department
- Functional Fibrous Structures & Environmental Enhancement (FFSEE)
- Amirkabir University of Technology
- Tehran
- Iran
| | - M. Mahmoudi Rad
- Skin Research Centre
- Shahid Beheshti University of Medical Sciences
- Tehran
- Iran
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