1
|
Aftab R, Akbar F, Afroz A, Asif A, Khan MR, Rehman N, Zeeshan N. Mentha piperita silver nanoparticle-loaded hydrocolloid film for enhanced diabetic wound healing in rats. J Wound Care 2024; 33:xlviii-lx. [PMID: 38457268 DOI: 10.12968/jowc.2024.33.sup3a.xlviii] [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] [Indexed: 03/10/2024]
Abstract
OBJECTIVE To investigate the role of Mentha piperita silver nanoparticle-loaded carbopol gel for enhanced wound healing in a diabetic rat model. This research further aims to explore bioactive compounds derived from Mentha piperita obtained from high altitude. METHOD Methanolic extracts of Mentha piperita (MP), Mentha spicata (MS) and Mentha longifolia (ML) were used to synthesise silver nanoparticles (AgNP). AgNP synthesis was confirmed by ultraviolet-visible (UV-Vis) spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The antioxidant activity was assessed by 2, 2-diphenyl-1-picrylhydrazyl (DDPH) assay. Antiglycation potential was determined by measuring the fluorescent advanced glycation end products. The bioactive compound identified in the Mentha piperita methanolic (MPM) fraction through electrospray ionisation tandem mass spectrometric analysis (ESI-MS) was responsible for the highest antiglycation. The effects of MPM and MPM.AgNP-loaded Carbopol (Sanare Lab, India) on wound healing were compared in male, alloxan-induced, diabetic albino rats (200-250g), divided into control and treated groups. Effects on wound healing were assessed via histopathology. RESULTS UV-Vis and FTIR confirmed NP synthesis with peaks for flavonoids and polyphenols. SEM and XRD explored the cubical, 30-63nm crystalline NP. The maximum antioxidant and antiglycation potential was observed in order of; MP.AgNP>MS.AgNP>ML.AgNP. The highest antioxidant activity was observed by methanolic and aqueous MP.AgNPs (88.55% and 83.63%, respectively) at 2mg.ml-1, and (75.16% and 69.73%, respectively) at 1mg.ml-1, compared to ascorbic acid (acting as a positive control, 90.01%). MPM.AgNPs demonstrated the best antiglycation potential of 75.2% and 83.3% at 1mg.ml-1 and 2mg.ml-1, respectively, comparable to positive control (rutin: 88.1%) at 14 days post-incubation. A similar trend was observed for antimicrobial activity against Bacillus subtilis, Micrococcus luteus and Escherichia coli with an inhibition zone of 21mm, 21.6mm and 24.6mm. Rosmarinic acid was the active compound present in Mentha piperita, as identified by ESI-MS. MPM.AgNP-loaded Carbopol resulted in 100% wound closure compared with control at 20 days post-wounding. In the treatment group, re-epithelialisation was achieved by day 18, compared with 25 days for the positive control group. CONCLUSION MPM.AgNP-loaded Carbopol demonstrated safer and more effective biological properties, hence accelerating the diabetic excision wound healing process in alloxan-induced diabetic rats.
Collapse
Affiliation(s)
- Reema Aftab
- Department of Biochemistry and Biotechnology, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
| | - Fatima Akbar
- Department of Biochemistry and Biotechnology, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
| | - Amber Afroz
- Department of Biochemistry and Biotechnology, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
| | - Awais Asif
- Nawaz Sharif Medical College, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
| | - Muhammad Ramzan Khan
- National Institute for Genomics and Advanced Biotechnology, National Agricultural Research Centre, Park Road, Islamabad 45500, Pakistan
| | - Nazia Rehman
- National Institute for Genomics and Advanced Biotechnology, National Agricultural Research Centre, Park Road, Islamabad 45500, Pakistan
| | - Nadia Zeeshan
- Department of Biochemistry and Biotechnology, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
| |
Collapse
|
2
|
Zambra M, Abbinante VM, García-Espejo G, Konidaris KF, Anzini P, Pipitone C, Giannici F, Scagliotti M, Rapisarda M, Mariucci L, Milita S, Guagliardi A, Masciocchi N. Polyfluorinated Naphthalene-bis-hydrazimide for Solution-Grown n-Type Semiconducting Films. ACS OMEGA 2023; 8:43651-43663. [PMID: 38027374 PMCID: PMC10666217 DOI: 10.1021/acsomega.3c05172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/11/2023] [Indexed: 12/01/2023]
Abstract
Naphthalene tetracarboxylic diimides (NDIs), possessing low-lying and tunable LUMO levels, are of wide interest for their aptitude to provide cost-effective, flexible, and environmentally stable n-type organic semiconductors through simple solution processing. NDI-based aromatic hydrazidimides are herein studied in relation to their chemical and environmental stability and as spin-coated stable thin films. In the case of the pentafluorinated residue, these were found to be crystalline, highly oriented, and molecularly flat (roughness = 0.3 nm), based on optical and atomic force microscopy, X-ray diffraction in specular and grazing incidence geometry, and X-ray reflectivity measurements. A new polymorph, previously undetected during the isolation of bulk powders or in their controlled thermal treatments, is found in the thin film and was metrically and structurally characterized from 2D GIWAXS patterns (monoclinic, P2/c, a = 17.50; b = 4.56; c = 14.24 Å; β = 84.8°). This new thin-film phase, TF-F5, is formed no matter whether silicon, glass, or polymethylmethacrylate substrates are used, thus opening the way to the preparation of solution-grown flexible semiconducting films. The TF-F5 films exhibit a systematic and rigorous molecular alignment with both orientation and packing favorable to electron mobility (μ = 0.02 cm2 V-1 s-1). Structural and morphological differences are deemed responsible for the absence of measurable conductivity in thin films of polyfluorinated analogues bearing -CF3 residues on the hydrazidimide aromatic rings.
Collapse
Affiliation(s)
- Marco Zambra
- Department
of Science and High Technology and To.Sca.Lab, University of Insubria and INSTM, via Valleggio 11, 22100 Como, Italy
| | - Vincenzo Mirco Abbinante
- Department
of Science and High Technology and To.Sca.Lab, University of Insubria and INSTM, via Valleggio 11, 22100 Como, Italy
| | - Gonzalo García-Espejo
- Department
of Science and High Technology and To.Sca.Lab, University of Insubria and INSTM, via Valleggio 11, 22100 Como, Italy
| | - Konstantis F. Konidaris
- Department
of Science and High Technology and To.Sca.Lab, University of Insubria and INSTM, via Valleggio 11, 22100 Como, Italy
| | - Pietro Anzini
- Department
of Science and High Technology and To.Sca.Lab, University of Insubria and INSTM, via Valleggio 11, 22100 Como, Italy
| | - Candida Pipitone
- Dipartimento
di Fisica e Chimica “Emilio Segrè”, Università di Palermo, viale delle Scienze, 90128 Palermo, Italy
| | - Francesco Giannici
- Dipartimento
di Fisica e Chimica “Emilio Segrè”, Università di Palermo, viale delle Scienze, 90128 Palermo, Italy
| | - Mattia Scagliotti
- Istituto
per la Microelettronica e Microsistemi - Consiglio Nazionale delle
Ricerche, via del Fosso
del Cavaliere 100, 00133 Roma, Italy
| | - Matteo Rapisarda
- Istituto
per la Microelettronica e Microsistemi - Consiglio Nazionale delle
Ricerche, via del Fosso
del Cavaliere 100, 00133 Roma, Italy
| | - Luigi Mariucci
- Istituto
per la Microelettronica e Microsistemi - Consiglio Nazionale delle
Ricerche, via del Fosso
del Cavaliere 100, 00133 Roma, Italy
| | - Silvia Milita
- Istituto
per la Microelettronica e Microsistemi, Consiglio Nazionale delle Ricerche, via Gobetti 101, 40129 Bologna, Italy
| | - Antonietta Guagliardi
- Istituto
di Cristallografia and To.Sca.Lab, Consiglio
Nazionale delle Ricerche, via Valleggio 11, 22100 Como, Italy
| | - Norberto Masciocchi
- Department
of Science and High Technology and To.Sca.Lab, University of Insubria and INSTM, via Valleggio 11, 22100 Como, Italy
| |
Collapse
|
3
|
James AM, McIntosh N, Devaux F, Brocorens P, Cornil J, Greco A, Maini L, Pandey P, Pandolfi L, Kunert B, Venuti E, Geerts YH, Resel R. Polymorph screening at surfaces of a benzothienobenzothiophene derivative: discovering new solvate forms. MATERIALS HORIZONS 2023; 10:4415-4422. [PMID: 37476933 DOI: 10.1039/d3mh00764b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
The discovery of new polymorphs opens up unique applications for molecular materials since their physical properties are predominantly influenced by the crystal structure type. The deposition of molecules at surfaces offers great potential in the variation of the crystallization conditions, thereby allowing access to unknown polymorphs. With our surface crystallization approach, four new phases are found for an oligoethylene glycol-benzothienobenzothiophene molecule, and none of these phases could be identified via classical polymorph screening. The corresponding crystal lattices of three of the new phases were obtained via X-ray diffraction (XRD). Based on the volumetric considerations together with X-ray fluorescence and Raman spectroscopy data, the phases are identified as solvates containing one, two or three solvent molecules per molecule. The strong interaction of dichloromethane with the oligoethylene glycol side chains of the molecules may be responsible for the formation of the solvates. Temperature-dependent XRD reveals the low thermal stability of the new phases, contrary to the thermodynamically stable bulk form. Nevertheless, the four solvates are stable under ambient conditions for at least two years. This work illustrates that defined crystallization at surfaces enables access to multiple solvates of a given material through precise and controlled variations in the crystallization kinetics.
Collapse
Affiliation(s)
- Ann Maria James
- Institute of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria.
| | - Nemo McIntosh
- Laboratory for Chemistry of Novel Materials, University of Mons, 7000 Mons, Belgium
| | - Félix Devaux
- Laboratoire de Chimie des Polymères, Université Libre de Bruxelles (ULB), 1050 Bruxelles, Belgium
| | - Patrick Brocorens
- Laboratory for Chemistry of Novel Materials, University of Mons, 7000 Mons, Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons, 7000 Mons, Belgium
| | | | - Lucia Maini
- Dipartimento di Chimica "G. Ciamician", University Bologna, 40126 Bologna, Italy
| | - Priya Pandey
- Dipartimento di Chimica "G. Ciamician", University Bologna, 40126 Bologna, Italy
| | - Lorenzo Pandolfi
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna viale del Risorgimento, 4, 40136, Bologna, Italy
| | - Birgit Kunert
- Institute of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria.
| | - Elisabetta Venuti
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna viale del Risorgimento, 4, 40136, Bologna, Italy
| | - Yves Henri Geerts
- Laboratoire de Chimie des Polymères, Université Libre de Bruxelles (ULB), 1050 Bruxelles, Belgium
- International Solvay Institutes of Physics and Chemistry, Université Libre de Bruxelles, 1050 Bruxelles, Belgium
| | - Roland Resel
- Institute of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria.
| |
Collapse
|
4
|
Ali MH, Azad MAK, Khan KA, Rahman MO, Chakma U, Kumer A. Analysis of Crystallographic Structures and Properties of Silver Nanoparticles Synthesized Using PKL Extract and Nanoscale Characterization Techniques. ACS OMEGA 2023; 8:28133-28142. [PMID: 37576647 PMCID: PMC10413482 DOI: 10.1021/acsomega.3c01261] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 07/06/2023] [Indexed: 08/15/2023]
Abstract
In this cutting-edge research era, silver nanoparticles impose a substantial impact because of their wide applicability in the field of engineering, science, and industry. Regarding the vast applications of silver nanoparticles, in this study, the crystallographic characteristics and nanostructures of silver nanoparticles extracted from natural resources have been studied. First, biosynthetic silver nanoparticles were synthesized using the Pathor Kuchi leaf (PKL) extract as a mediator, and their crystal structures and characteristics were analyzed by UV-visible absorption spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and energy-dispersive X-ray (EDX) analysis. The average crystallite size of the synthesized silver nanoparticle was determined to be 20.26 nm, and also the lattice strain, intrinsic stress, and dislocation density were measured to be 2.19 × 10-3, 0.08235 GPa, and 3.062045 × 10-3/nm2, respectively. Further, the prepared sample of silver nanoparticles shows four peaks in the X-ray diffraction pattern, which correspond to the (111), (200), (220), and (311) face-centered cubic (FCC) crystalline planes. The outstanding finding of this work was that when the lattice parameters of the precursor were increased, the volume of the material did not considerably change, but the particle size decreased. Second, it was clearly demonstrated that this straightforward method is a clean, cost-effective, environmentally sustainable, nontoxic, and efficient route for the synthesis of silver nanoparticles (Ag NPs) using PKL leaf at ambient temperature, which also satisfies the green chemistry requirements. Finally, this study demonstrates the scope for the production of silver nanoparticles using low-cost natural resources.
Collapse
Affiliation(s)
- Md. Hazrat Ali
- Department
of Electrical and Electronic Engineering, European University of Bangladesh (EUB), 2/4, Gabtoli, Mirpur, Dhaka 1216, Bangladesh
| | - Md. Abul Kalam Azad
- Department
of Civil Engineering, European University
of Bangladesh (EUB), 2/4, Gabtoli, Mirpur, Dhaka 1216, Bangladesh
| | - K. A. Khan
- Department
of Physics, Jagannath University, Dhaka 1100, Bangladesh
| | - Md. Obaidur Rahman
- Department
of Physics, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | - Unesco Chakma
- School
of Electronic Science and Engineering, Southeast
University, Nanjing 210096, P. R. China
- Laboratory
of Computational Research for Drug Design and Material Science, Department
of Chemistry, European University of Bangladesh, Dhaka 1216, Bangladesh
| | - Ajoy Kumer
- Laboratory
of Computational Research for Drug Design and Material Science, Department
of Chemistry, European University of Bangladesh, Dhaka 1216, Bangladesh
| |
Collapse
|
5
|
Simbrunner J, Salzmann I, Resel R. Indexing of grazing-incidence X-ray diffraction patterns. CRYSTALLOGR REV 2023. [DOI: 10.1080/0889311x.2023.2187051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
- Josef Simbrunner
- Division of Neuroradiology, Vascular and Interventional Radiology, Medical University Graz, Graz, Austria
| | - Ingo Salzmann
- Department of Physics, Department of Chemistry and Biochemistry, Centre for Research in Molecular Modeling (CERMM), Centre for NanoScience Research (CeNSR), Concordia University, Montreal, Canada
| | - Roland Resel
- Institute of Solid State Physics, Graz University of Technology, Graz, Austria
| |
Collapse
|
6
|
Hinderhofer A, Greco A, Starostin V, Munteanu V, Pithan L, Gerlach A, Schreiber F. Machine learning for scattering data: strategies, perspectives and applications to surface scattering. J Appl Crystallogr 2023; 56:3-11. [PMID: 36777139 PMCID: PMC9901926 DOI: 10.1107/s1600576722011566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 11/30/2022] [Indexed: 01/25/2023] Open
Abstract
Machine learning (ML) has received enormous attention in science and beyond. Discussed here are the status, opportunities, challenges and limitations of ML as applied to X-ray and neutron scattering techniques, with an emphasis on surface scattering. Typical strategies are outlined, as well as possible pitfalls. Applications to reflectometry and grazing-incidence scattering are critically discussed. Comment is also given on the availability of training and test data for ML applications, such as neural networks, and a large reflectivity data set is provided as reference data for the community.
Collapse
Affiliation(s)
- Alexander Hinderhofer
- Institute of Applied Physics, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany,Correspondence e-mail:
| | - Alessandro Greco
- Institute of Applied Physics, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
| | - Vladimir Starostin
- Institute of Applied Physics, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
| | - Valentin Munteanu
- Institute of Applied Physics, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
| | - Linus Pithan
- Institute of Applied Physics, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
| | - Alexander Gerlach
- Institute of Applied Physics, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
| | - Frank Schreiber
- Institute of Applied Physics, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
| |
Collapse
|
7
|
Kaltenegger M, Hofer S, Resel R, Werzer O, Riegler H, Simbrunner J, Winkler C, Geerts Y, Liu J. Engineering of a kinetically driven phase of phenoxazine by surface crystallisation. CrystEngComm 2022. [DOI: 10.1039/d2ce00479h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface crystallisation yields an unknown polymorph of the phenoxazine molecule. Tuning the crystallisation conditions causes a defined crystal growth of either the thermodynamically stable phase or the kinetic phase observed exclusively within thin films.
Collapse
Affiliation(s)
- Martin Kaltenegger
- Institute of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria
- Laboratoire de Chimie des Polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB), CP 206/1, Boulevard du Triomphe, 1050 Bruxelles, Belgium
| | - Sebastian Hofer
- Institute of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria
| | - Roland Resel
- Institute of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria
| | - Oliver Werzer
- Department for Pharmaceutical Technology and Biopharmacy, Institute of Pharmaceutical Sciences, Graz University, Universitätsplatz 1, 8010 Graz, Austria
- JOANNEUM RESEARCH Forschungsgesellschaft mbH, Institute for Surface Technologies and Photonics, Franz-Pichler-Straße 30, 8160 Weiz, Austria
| | - Hans Riegler
- Department for Pharmaceutical Technology and Biopharmacy, Institute of Pharmaceutical Sciences, Graz University, Universitätsplatz 1, 8010 Graz, Austria
| | - Josef Simbrunner
- Division of Neuroradiology, Vascular and Interventional Radiology, Medical University Graz, Auenbruggerplatz 9, Graz, 8036, Austria
| | - Christian Winkler
- Institute of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria
| | - Yves Geerts
- Laboratoire de Chimie des Polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB), CP 206/1, Boulevard du Triomphe, 1050 Bruxelles, Belgium
- International Solvay Institutes of Physics and Chemistry, Brussels, Belgium
| | - Jie Liu
- Laboratoire de Chimie des Polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB), CP 206/1, Boulevard du Triomphe, 1050 Bruxelles, Belgium
| |
Collapse
|