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Popescu I, Constantin M, Solcan G, Ichim DL, Rata DM, Horodincu L, Solcan C. Composite Hydrogels with Embedded Silver Nanoparticles and Ibuprofen as Wound Dressing. Gels 2023; 9:654. [PMID: 37623109 PMCID: PMC10454181 DOI: 10.3390/gels9080654] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/02/2023] [Accepted: 08/11/2023] [Indexed: 08/26/2023] Open
Abstract
The wound healing process is often slowed down as a result of complications from bacterial infections and inflammatory reactions. Therefore, it is necessary to develop dressings with fast antibacterial and anti-inflammatory activity that shorten the wound healing period by promoting cell migration and proliferation. Chitosan (CS)-based hydrogels have been widely studied for their antibacterial and wound healing capabilities. Herein, we developed a composite hydrogel based on CS and PVA embedding silver nanoparticles (AgNPs) with antibacterial properties and ibuprofen (Ib) as an anti-inflammatory agent. The hydrogel prepared by double physical cross-linking, with oxalic acid and by freeze-thawing, loaded with 0.225 wt.% AgNPs and 0.264 wt.% Ib, displayed good mechanical properties (compressive modulus = 132 kPa), a high swelling degree and sustained drug delivery (in simulated skin conditions). Moreover, the hydrogel showed strong antibacterial activity against S. aureus and K. pneumoniae due to the embedded AgNPs. In vivo, this hydrogel accelerated the wound regeneration process through the enhanced expression of TNF alpha IP8, by activating downstream cascades and supporting the healing process of inflammation; Cox2, which enhances the migration and proliferation of cells involved in re-epithelization and angiogenesis; MHCII, which promotes immune cooperation between local cells, eliminating dead tissue and controlling infection; the intense expression of Col I as a major marker in the tissue granulation process; and αSMA, which marks the presence of myofibroblasts involved in wound closure and indicates ongoing re-epithelization. The results reveal the potential healing effect of CS/PVA/AgNPs/Ib hydrogels and suggest their potential use as wound dressings.
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Affiliation(s)
- Irina Popescu
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.P.); (M.C.)
| | - Marieta Constantin
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.P.); (M.C.)
| | - Gheorghe Solcan
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 700489 Iasi, Romania; (G.S.); (L.H.)
| | - Daniela Luminita Ichim
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, 700511 Iasi, Romania; (D.L.I.); (D.M.R.)
| | - Delia Mihaela Rata
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, 700511 Iasi, Romania; (D.L.I.); (D.M.R.)
| | - Loredana Horodincu
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 700489 Iasi, Romania; (G.S.); (L.H.)
| | - Carmen Solcan
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 700489 Iasi, Romania; (G.S.); (L.H.)
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Jalil K, Ahmad S, Islam N, Ullah R, Jalil Q, Sulaiman S, Sajjad A, Ullah R, Alqahtani AS, Bari A, Hussain H, Ali EA. One Pot Synthesis, Biological Efficacy of AuNPs and Au-Amoxicillin Conjugates Functionalized with Crude Flavonoids Extract of Micromeria biflora. Molecules 2023; 28:molecules28083320. [PMID: 37110554 PMCID: PMC10140876 DOI: 10.3390/molecules28083320] [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: 02/27/2023] [Revised: 03/29/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023] Open
Abstract
Amoxicillin is the most widely used antibiotic in human medicine for treating bacterial infections. However, in the present research, Micromeria biflora's flavonoids extract mediated gold nanoparticles (AuNPs) were conjugated with amoxicillin (Au-amoxi) to study their efficacy against the inflammation and pain caused by bacterial infections. The formation of AuNPs and Au-amoxi conjugates were confirmed by UV-visible surface plasmon peaks at 535 nm and 545 nm, respectively. The scanning electron microscopy (SEM), zeta potential (ZP), and X-ray diffraction (XRD) studies reveal that the size of AuNPs and Au-amoxi are found to be 42 nm and 45 nm, respectively. Fourier-transform infrared spectroscopy (FT-IR) absorption bands at 3200 cm-1, 1000 cm-1, 1500 cm-1, and 1650 cm-1 reveal the possible involvement of different moieties for the formation of AuNPs and Au-amoxi. The pH studies show that AuNPs and Au-amoxi conjugates are stable at lower pH. The carrageenan-induced paw edema test, writhing test, and hot plate test were used to conduct in vivo anti-inflammatory and antinociceptive studies, respectively. According to in vivo anti-inflammatory activity, Au-amoxi compounds have higher efficiency (70%) after 3 h at a dose of 10 mg/kg body weight as compared to standard diclofenac (60%) at 20 mg/kg, amoxicillin (30%) at 100 mg/kg, and flavonoids extract (35%) at 100 mg/kg. Similarly, for antinociceptive activities, writhing test results show that Au-amoxi conjugates produced the same number of writhes (15) but at a lower dose (10 mg/kg) compared to standard diclofenac (20 mg/kg). The hot plate test results demonstrate that the Au-amoxi has a better latency time of 25 s at 10 mg/kg dose when compared to standard Tramadol of 22 s at 30 mg/ kg, amoxicillin of 14 s at 100 mg/kg, and extract of 14 s at 100 mg/kg after placing the mice on the hot plate for 30, 60, and 90 min with a significance of (p ≤ 0.001). These findings show that the conjugation of AuNPs with amoxicillin to form Au-amoxi can boost its anti-inflammatory and antinociceptive potential caused by bacterial infections.
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Affiliation(s)
- Kamran Jalil
- Chemistry Department, Islamia College University, Peshawar 25000, Pakistan
- Department of Chemistry, Government Degree College Hayatabad, Peshawar 25000, Pakistan
| | - Shabir Ahmad
- Chemistry Department, Islamia College University, Peshawar 25000, Pakistan
| | - Nazrul Islam
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan
| | - Rahim Ullah
- Department of Pharmacy, University of Peshawar, Peshawar 25000, Pakistan
| | - Qudsia Jalil
- Chemistry Department, Islamia College University, Peshawar 25000, Pakistan
| | - Sulaiman Sulaiman
- Chemistry Department, Islamia College University, Peshawar 25000, Pakistan
| | - Anoosha Sajjad
- Chemistry Department, Islamia College University, Peshawar 25000, Pakistan
| | - Riaz Ullah
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ali S Alqahtani
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Bari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Essam A Ali
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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Domingues C, Santos A, Alvarez-Lorenzo C, Concheiro A, Jarak I, Veiga F, Barbosa I, Dourado M, Figueiras A. Where Is Nano Today and Where Is It Headed? A Review of Nanomedicine and the Dilemma of Nanotoxicology. ACS NANO 2022; 16:9994-10041. [PMID: 35729778 DOI: 10.1021/acsnano.2c00128] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Worldwide nanotechnology development and application have fueled many scientific advances, but technophilic expectations and technophobic demands must be counterbalanced in parallel. Some of the burning issues today are the following: (1) Where is nano today? (2) How good are the communication and investment networks between academia/research and governments? (3) Is there any spotlight application for nanotechnology? Nanomedicine is a particular arm of nanotechnology within the healthcare landscape, focused on diagnosis, treatment, and monitoring of emerging (such as coronavirus disease 2019, COVID-19) and contemporary (including diabetes, cardiovascular diseases, neurodegenerative disorders, and cancer) diseases. However, it may only represent the bright side of the coin. In fact, in the recent past, the concept of nanotoxicology has emerged to address the dark shadows of nanomedicine. The nanomedicine field requires more nanotoxicological studies to identify undesirable effects and guarantee safety. Here, we provide an overall perspective on nanomedicine and nanotoxicology as central pieces of the giant puzzle of nanotechnology. First, the impact of nanotechnology on education and research is highlighted, followed by market trends and scientific output tendencies. In the next section, the nanomedicine and nanotoxicology dilemma is addressed through the interplay of in silico, in vitro, and in vivo models with the support of omics and microfluidic approaches. Lastly, a reflection on the regulatory issues and clinical trials is provided. Finally, some conclusions and future perspectives are proposed for a clearer and safer translation of nanomedicines from the bench to the bedside.
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Affiliation(s)
- Cátia Domingues
- Univ. Coimbra, Faculty of Pharmacy, Galenic and Pharmaceutical Technology Laboratory, 3000-548 Coimbra, Portugal
- LAQV-REQUIMTE, Galenic and Pharmaceutical Technology Laboratory, Faculty of Pharmacy, Univ. Coimbra, 3000-548 Coimbra, Portugal
- Univ. Coimbra, Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, 3000-548 Coimbra, Portugal
| | - Ana Santos
- Univ. Coimbra, Faculty of Pharmacy, Galenic and Pharmaceutical Technology Laboratory, 3000-548 Coimbra, Portugal
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, iMATUS, and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, iMATUS, and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ivana Jarak
- Univ. Coimbra, Faculty of Pharmacy, Galenic and Pharmaceutical Technology Laboratory, 3000-548 Coimbra, Portugal
| | - Francisco Veiga
- Univ. Coimbra, Faculty of Pharmacy, Galenic and Pharmaceutical Technology Laboratory, 3000-548 Coimbra, Portugal
- LAQV-REQUIMTE, Galenic and Pharmaceutical Technology Laboratory, Faculty of Pharmacy, Univ. Coimbra, 3000-548 Coimbra, Portugal
| | - Isabel Barbosa
- Univ. Coimbra, Faculty of Pharmacy, Phamaceutical Chemistry Laboratory, 3000-548 Coimbra, Portugal
| | - Marília Dourado
- Univ. Coimbra, Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, 3000-548 Coimbra, Portugal
- Univ. Coimbra, Center for Health Studies and Research of the University of Coimbra (CEISUC), Faculty of Medicine, 3000-548 Coimbra, Portugal
- Univ. Coimbra, Center for Studies and Development of Continuous and Palliative Care (CEDCCP), Faculty of Medicine, 3000-548 Coimbra, Portugal
| | - Ana Figueiras
- Univ. Coimbra, Faculty of Pharmacy, Galenic and Pharmaceutical Technology Laboratory, 3000-548 Coimbra, Portugal
- LAQV-REQUIMTE, Galenic and Pharmaceutical Technology Laboratory, Faculty of Pharmacy, Univ. Coimbra, 3000-548 Coimbra, Portugal
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Khan ZU, Uchiyama MK, Khan LU, Araki K, Goto H, Felinto MCFC, de Souza AO, de Brito HF, Gidlund M. Wide visible-range activatable fluorescence ZnSe:Eu 3+/Mn 2+@ZnS quantum dots: local atomic structure order and application as a nanoprobe for bioimaging. J Mater Chem B 2021; 10:247-261. [PMID: 34878486 DOI: 10.1039/d1tb01870a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The development of QDs-based fluorescent bionanoprobe for cellular imaging fundamentally relies upon the precise knowledge of particle-cell interaction, optical properties of QDs inside and outside of the cell, movement of a particle in and out of the cell, and the fate of particle. We reported engineering and physicochemical characterization of water-dispersible Eu3+/Mn2+ co-doped ZnSe@ZnS core/shell QDs and studied their potential as a bionanoprobe for biomedical applications, evaluating their biocompatibility, fluorescence behaviour by CytoViva dual mode fluorescence imaging, time-dependent uptake, endocytosis and exocytosis in RAW 264.7 macrophages. The oxidation state and local atomic structure of the Eu dopant studied by X-ray absorption fine structure (XAFS) analysis manifested that the Eu3+ ions occupied sites in both ZnSe and ZnS lattices for the core/shell QDs. A novel approach was developed to relieve the excitation constraint of wide bandgap ZnSe by co-incorporation of Eu3+/Mn2+ codopants, enabling the QDs to be excited at a wide UV-visible range. The QDs displayed tunable emission colors by a gradual increase in Eu3+ concentration at a fixed amount of Mn2+, systematically enhancing the Mn2+ emission intensity via energy transfer from the Eu3+ to Mn2+ ion. The ZnSe:Eu3+/Mn2+@ZnS QDs presented high cell viability above 85% and induced no cell activation. The detailed analyses of QDs-treated cells by dual mode fluorescence CytoViva microscopy confirmed the systematic color-tunable fluorescence and its intensity enhances as a function of incubation time. The QDs were internalized by the cells predominantly via macropinocytosis and other lipid raft-mediated endocytic pathways, retaining an efficient amount for 24 h. The unique color tunability and consistent high intensity emission make these QDs useful for developing a multiplex fluorescent bionanoprobe, activatable in wide-visible region.
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Affiliation(s)
- Zahid Ullah Khan
- Department of Immunology, Institute of Biomedical Sciences-IV, University of São Paulo (USP), Zip Code 05508-000, São Paulo, SP, Brazil.,Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo (USP), Zip Code 05508-000, São Paulo, SP, Brazil
| | - Mayara Klimuk Uchiyama
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo (USP), Zip Code 05508-000, São Paulo, SP, Brazil
| | - Latif Ullah Khan
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo (USP), Zip Code 05508-000, São Paulo, SP, Brazil.,Synchrotron-light for Experimental Science and Applications in the Middle East (SESAME), P.O. Box 7, Allan 19252, Jordan.
| | - Koiti Araki
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo (USP), Zip Code 05508-000, São Paulo, SP, Brazil
| | - Hiro Goto
- Faculty of Medicine, University of São Paulo (USP), Zip Code 05403-000, São Paulo, SP, Brazil
| | | | - Ana Olivia de Souza
- Development and Innovation Laboratory, Butantan Institute, Zip Code 05503-900, São Paulo, SP, Brazil
| | - Hermi Felinto de Brito
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo (USP), Zip Code 05508-000, São Paulo, SP, Brazil
| | - Magnus Gidlund
- Department of Immunology, Institute of Biomedical Sciences-IV, University of São Paulo (USP), Zip Code 05508-000, São Paulo, SP, Brazil
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Li C, Wang K, Xie D. Green Fabrication and Release Mechanisms of pH-Sensitive Chitosan-Ibuprofen Aerogels for Controlled Transdermal Delivery of Ibuprofen. Front Chem 2021; 9:767923. [PMID: 34858944 PMCID: PMC8630543 DOI: 10.3389/fchem.2021.767923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/04/2021] [Indexed: 01/28/2023] Open
Abstract
Ibuprofen is a potent non-steroidal anti-inflammatory drug due to its analgesic, antipyretic, and anti-inflammatory actions. However, its poor solubility in water makes it difficult to manufacture ibuprofen tablets, which limited the application of ibuprofen in drug delivery systems. Polymer–drug aerogels have attracted huge interest in optimizing the drug delivery efficiency and improving the physicochemical characteristics and therapeutic quality. Here, chitosan–ibuprofen aerogels with excellent swelling, high biocompatibility, and better drug delivery efficiency were synthesized by a simple method. Our study found that the chitosan–ibuprofen aerogels exhibited remarkably improved thermal stability, excellent swelling ratio, and high drug loading. As a consequence of these favorable properties, the chitosan–ibuprofen aerogels exhibited improved drug delivery efficiency and achieved drug prolonged administration. Our study highlights the great potential of polymer–drug aerogels in improving the drug delivery efficiency of transdermal drug delivery systems.
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Affiliation(s)
- Chen Li
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou, China.,Guangdong Biomaterials Engineering Technology Research Center, Guangzhou, China
| | - Ke Wang
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou, China.,Guangdong Biomaterials Engineering Technology Research Center, Guangzhou, China
| | - Dong Xie
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou, China.,Guangdong Biomaterials Engineering Technology Research Center, Guangzhou, China
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