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Guo Z, Yuan M, Chai J. Mini review advantages and limitations of lytic phages compared with chemical antibiotics to combat bacterial infections. Heliyon 2024; 10:e34849. [PMID: 39148970 PMCID: PMC11324966 DOI: 10.1016/j.heliyon.2024.e34849] [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: 05/22/2023] [Revised: 07/10/2024] [Accepted: 07/17/2024] [Indexed: 08/17/2024] Open
Abstract
The overuse of antibiotics has caused the emergence of antibiotic-resistant strains, such as multidrug-resistant, extensively drug-resistant, and pandrug-resistant bacteria. The treatment of infections caused by such strains has become a formidable challenge. In the post-antibiotic era, phage therapy is an attractive solution for this problem and some successful phase 1 and 2 studies have demonstrated the efficacy and safety of phage therapy over the last decade. It is a form of evolutionary medicine, phages exhibit immunomodulatory and anti-inflammatory properties. However, phage therapy is limited by factors, such as the narrow spectrum of host strains, the special pharmacokinetics and pharmacodynamics in vivo, immune responses, and the development of phage resistance. The aim of this minireview was to compare the potencies of lytic phages and chemical antibiotics to treat bacterial infections. The advantages of phage therapy has fewer side effects, self-replication, evolution, bacterial biofilms eradication, immunomodulatory and anti-inflammatory properties compared with chemical antibiotics. Meanwhile, the disadvantages of phage therapy include the narrow spectrum of available host strains, the special pharmacokinetics and pharmacodynamics in vivo, immune responses, and phage resistance hurdles. Recently, some researchers continue to make efforts to overcome these limitations of phage therapy. Phage therapy will be a welcome addition to the gamut of options available for treating antibiotic-resistant bacterial infections. We focus on the advantages and limitations of phage therapy with the intention of exploiting the advantages and overcoming the limitations.
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Affiliation(s)
- Zhimin Guo
- Department of Laboratory Medicine, Infectious Diseases and Pathogen Biology Center, The First Hospital of Jilin University, Changchun, 130021, China
| | - Mengyao Yuan
- Department of Laboratory Medicine, Infectious Diseases and Pathogen Biology Center, The First Hospital of Jilin University, Changchun, 130021, China
| | - Jiannan Chai
- Department of Laboratory Medicine, The First Hospital of Jilin University, Changchun, 130021, China
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Khazani Asforooshani M, Elikaei A, Abed S, Shafiei M, Barzi SM, Solgi H, Badmasti F, Sohrabi A. A novel Enterococcus faecium phage EF-M80: unveiling the effects of hydrogel-encapsulated phage on wound infection healing. Front Microbiol 2024; 15:1416971. [PMID: 39006751 PMCID: PMC11239553 DOI: 10.3389/fmicb.2024.1416971] [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: 04/13/2024] [Accepted: 06/13/2024] [Indexed: 07/16/2024] Open
Abstract
Background Enterococcus faecium is one of the members of ESKAPE pathogens. Due to its resistance to antimicrobial agents, treating this bacterium has become challenging. The development of innovative approaches to combat antibiotic resistance is necessary. Phage therapy has emerged as a promising method for curing antibiotic-resistant bacteria. Methods In this study, E. faecium phages were isolated from wastewater. Phage properties were characterized through in vitro assays (e.g. morphological studies, and physicochemical properties). In addition, whole genome sequencing was performed. A hydrogel-based encapsulated phage was obtained and its structure characteristics were evaluated. Wound healing activity of the hydrogel-based phage was assessed in a wound mice model. Results The purified phage showed remarkable properties including broad host range, tolerance to high temperature and pH and biofilm degradation feature as a stable and reliable therapeutic agent. Whole genome sequencing revealed that the genome of the EF-M80 phage had a length of 40,434 bp and harbored 65 open reading frames (ORFs) with a GC content of 34.9% (GenBank accession number is OR767211). Hydrogel-based encapsulated phage represented an optimized structure. Phage-loaded hydrogel-treated mice showed that the counting of neutrophils, fibroblasts, blood vessels, hair follicles and percentage of collagen growth were in favor of the wound healing process in the mice model. Conclusion These findings collectively suggest the promising capability of this phage-based therapeutic strategy for the treatment of infections associated with the antibiotic-resistant E. faecium. In the near future, we hope to expect the presence of bacteriophages in the list of antibacterial compounds used in the clinical settings.
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Affiliation(s)
- Mahshid Khazani Asforooshani
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Ameneh Elikaei
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
| | - Sahar Abed
- Department of Microbial Biotechnology, Faculty of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran
| | - Morvarid Shafiei
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | | | - Hamid Solgi
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farzad Badmasti
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Aria Sohrabi
- Department of Epidemiology and Biostatistics, Research Center for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
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3
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Cecerska-Heryć E, Gliźniewicz M, Grygorcewicz B, Serwin N, Stodolak P, Słodzińska W, Birger R, Goszka M, Polikowska A, Budkowska M, Rakoczy R, Dołęgowska B. The effect of a rotating magnetic field on the antioxidant system in healthy volunteers - preliminary study. Sci Rep 2024; 14:8677. [PMID: 38622314 PMCID: PMC11018782 DOI: 10.1038/s41598-024-59391-y] [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: 09/27/2023] [Accepted: 04/10/2024] [Indexed: 04/17/2024] Open
Abstract
Oxidative stress is characterized by an excessive concentration of reactive oxygen species (ROS) resulting from a disturbance in the balance between ROS production and their removal by antioxidant systems (SOD, CAT, GPx). Prolonged and intense oxidative stress can cause various forms of damage to cells, which markers are total antioxidant capacity (TAC), reactive oxygen species modulator (ROMO1), and malondialdehyde (MDA). It has been demonstrated that magnetic fields can positively affect human health, for example, by reducing oxidative stress. Determination of the effect of a rotating magnetic field (RMF) on the activity/concentration of selected oxidative stress markers. A group of 30 healthy volunteers (15 women and 15 men) (mean age 24.8 ± 5.1) in the study classified into the following groups: internal control group (CG);1 h 25 Hz (samples placed in the field for one hour at 25 Hz); 3 h 25 Hz (samples placed in the field for 3 h at 25 Hz), the 1 h 50 Hz group ( placed in RMF for an hour at 50 Hz), and a group of 3 h 50 Hz (samples placed in the field for 3 h at 50 Hz). Serum samples were collected in K2EDTA tubes.. The magnetic induction value obtained for RMF is 37.06 mT and 42.64 mT.Activity/concentration of selected oxidative stress markers was analyzed by ELISA. The influence of an RMF on the activity/concentration of SOD, MDA, TAC, and ROMO1 was demonstrated (p < 0.001; p = 0.0013; p < 0.001; p = 0.003). The RFM can reduce oxidative stress, as evidenced by higher SOD and CAT activities in the CG than in samples placed in the RFM. Prolonged exposure to the RFM at 50 Hz increased the TAC level, indicating an intensification of oxidative stress in these samples. The optimal conditions for staying in the RFM (reducing oxidative stress) are 1 h 50 Hz for SOD and MDA; 3 h 25 Hz for CAT and TAC. In the case of ROMO1, it is stated that 1 h 25 Hz are the optimal conditions for no increased production of ROS.
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Affiliation(s)
- Elżbieta Cecerska-Heryć
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland.
- Department of Chemical and Process Engineering, West Pomeranian University of Technology, Piastów 42, 71-311, Szczecin, Poland.
| | - Marta Gliźniewicz
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland
| | - Bartłomiej Grygorcewicz
- Department of Chemical and Process Engineering, West Pomeranian University of Technology, Piastów 42, 71-311, Szczecin, Poland
- Department of Forensic Genetic, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111, Szczecin, Poland
| | - Natalia Serwin
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland
| | - Patrycja Stodolak
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland
| | - Weronika Słodzińska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland
| | - Radosław Birger
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland
| | - Małgorzata Goszka
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland
| | - Aleksandra Polikowska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland
| | - Marta Budkowska
- Department of Medical Analytics, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland
| | - Rafał Rakoczy
- Department of Chemical and Process Engineering, West Pomeranian University of Technology, Piastów 42, 71-311, Szczecin, Poland
| | - Barbara Dołęgowska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, PowstancowWielkopolskich 72, 70-111, Szczecin, Poland
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Cecerska-Heryć E, Goszka M, Gliźniewicz M, Grygorcewicz B, Serwin N, Stodolak P, Słodzińska W, Birger R, Polikowska A, Budkowska M, Rakoczy R, Dołęgowska B. The Effect of a Rotating Magnetic Field on the Regenerative Potential of Platelets. Int J Mol Sci 2024; 25:3644. [PMID: 38612456 PMCID: PMC11012199 DOI: 10.3390/ijms25073644] [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: 01/25/2024] [Revised: 02/25/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Platelets are actively involved in tissue injury site regeneration by producing a wide spectrum of platelet-derived growth factors such as PDGF (platelet-derived growth factor), IGF-1 (insulin-like growth factor), TGF-β1 (transforming growth factor β), FGF (fibroblast growth factor), etc. A rotating magnetic field (RMF) can regulate biological functions, including reduction or induction regarding inflammatory processes, cell differentiation, and gene expression, to determine the effect of an RMF on the regenerative potential of platelets. The study group consisted of 30 healthy female and male volunteers (n = 15), from which plasma was collected. A portion of the plasma was extracted and treated as an internal control group. Subsequent doses of plasma were exposed to RMF at different frequencies (25 and 50 Hz) for 1 and 3 h. Then, the concentrations of growth factors (IGF-1, PDGF-BB, TGF-β1, and FGF-1) were determined in the obtained material by the ELISA method. There were statistically significant differences in the PDGF-BB, TGF-β1, IGF-1, and FGF-1 concentrations between the analyzed groups. The highest concentration of PDGF-BB was observed in the samples placed in RMF for 1 h at 25 Hz. For TGF-β1, the highest concentrations were obtained in the samples exposed to RMF for 3 h at 25 Hz and 1 h at 50 Hz. The highest concentrations of IGF-1 and FGF-1 were shown in plasma placed in RMF for 3 h at 25 Hz. An RMF may increase the regenerative potential of platelets. It was noted that female platelets may respond more strongly to RMF than male platelets.
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Affiliation(s)
- Elżbieta Cecerska-Heryć
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (M.G.); (M.G.); (N.S.); (P.S.); (W.S.); (R.B.); (A.P.); (B.D.)
- Department of Chemical and Process Engineering, West Pomeranian University of Technology, Piastów 42, 71-311 Szczecin, Poland; (B.G.); (R.R.)
| | - Małgorzata Goszka
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (M.G.); (M.G.); (N.S.); (P.S.); (W.S.); (R.B.); (A.P.); (B.D.)
| | - Marta Gliźniewicz
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (M.G.); (M.G.); (N.S.); (P.S.); (W.S.); (R.B.); (A.P.); (B.D.)
| | - Bartłomiej Grygorcewicz
- Department of Chemical and Process Engineering, West Pomeranian University of Technology, Piastów 42, 71-311 Szczecin, Poland; (B.G.); (R.R.)
- Department of Forensic Genetic, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Natalia Serwin
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (M.G.); (M.G.); (N.S.); (P.S.); (W.S.); (R.B.); (A.P.); (B.D.)
| | - Patrycja Stodolak
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (M.G.); (M.G.); (N.S.); (P.S.); (W.S.); (R.B.); (A.P.); (B.D.)
| | - Weronika Słodzińska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (M.G.); (M.G.); (N.S.); (P.S.); (W.S.); (R.B.); (A.P.); (B.D.)
| | - Radosław Birger
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (M.G.); (M.G.); (N.S.); (P.S.); (W.S.); (R.B.); (A.P.); (B.D.)
| | - Aleksandra Polikowska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (M.G.); (M.G.); (N.S.); (P.S.); (W.S.); (R.B.); (A.P.); (B.D.)
| | - Marta Budkowska
- Department of Medical Analytics, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland;
| | - Rafał Rakoczy
- Department of Chemical and Process Engineering, West Pomeranian University of Technology, Piastów 42, 71-311 Szczecin, Poland; (B.G.); (R.R.)
| | - Barbara Dołęgowska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (M.G.); (M.G.); (N.S.); (P.S.); (W.S.); (R.B.); (A.P.); (B.D.)
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Gliźniewicz M, Miłek D, Olszewska P, Czajkowski A, Serwin N, Cecerska-Heryć E, Dołęgowska B, Grygorcewicz B. Advances in bacteriophage-mediated strategies for combating polymicrobial biofilms. Front Microbiol 2024; 14:1320345. [PMID: 38249486 PMCID: PMC10797108 DOI: 10.3389/fmicb.2023.1320345] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/04/2023] [Indexed: 01/23/2024] Open
Abstract
Bacteria and fungi tend to coexist within biofilms instead of in planktonic states. Usually, such communities include cross-kingdom microorganisms, which make them harder to remove from abiotic surfaces or infection sites. Additionally, the produced biofilm matrix protects embedded microorganisms from antibiotics, disinfectants, or the host immune system. Therefore, classic therapies based on antibiotics might be ineffective, especially when multidrug-resistant bacteria are causative factors. The complexities surrounding the eradication of biofilms from diverse surfaces and the human body have spurred the exploration of alternative therapeutic modalities. Among these options, bacteriophages and their enzymatic counterparts have emerged as promising candidates, either employed independently or in synergy with antibiotics and other agents. Phages are natural bacteria killers because of mechanisms of action that differ from antibiotics, phages might answer worldwide problems with bacterial infections. In this review, we report the attempts to use bacteriophages in combating polymicrobial biofilms in in vitro studies, using different models, including the therapeutical use of phages. In addition, we sum up the advantages, disadvantages, and perspectives of phage therapy.
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Affiliation(s)
- Marta Gliźniewicz
- Faculty of Pharmacy, Medical Biotechnology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Dominika Miłek
- Faculty of Pharmacy, Medical Biotechnology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Patrycja Olszewska
- Faculty of Pharmacy, Medical Biotechnology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Artur Czajkowski
- Faculty of Pharmacy, Medical Biotechnology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Natalia Serwin
- Faculty of Pharmacy, Medical Biotechnology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Elżbieta Cecerska-Heryć
- Faculty of Pharmacy, Medical Biotechnology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Barbara Dołęgowska
- Faculty of Pharmacy, Medical Biotechnology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Bartłomiej Grygorcewicz
- Faculty of Pharmacy, Medical Biotechnology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
- Department of Chemical Technology and Engineering, Institute of Chemical Engineering and Environmental Protection Processes, West Pomeranian University of Technology, Szczecin, Poland
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Raza S, Wdowiak M, Paczesny J. An Overview of Diverse Strategies To Inactivate Enterobacteriaceae-Targeting Bacteriophages. EcoSal Plus 2023; 11:eesp00192022. [PMID: 36651738 PMCID: PMC10729933 DOI: 10.1128/ecosalplus.esp-0019-2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/20/2022] [Indexed: 01/19/2023]
Abstract
Bacteriophages are viruses that infect bacteria and thus threaten industrial processes relying on the production executed by bacterial cells. Industries bear huge economic losses due to such recurring and resilient infections. Depending on the specificity of the process, there is a need for appropriate methods of bacteriophage inactivation, with an emphasis on being inexpensive and high efficiency. In this review, we summarize the reports on antiphagents, i.e., antibacteriophage agents on inactivation of bacteriophages. We focused on bacteriophages targeting the representatives of the Enterobacteriaceae family, as its representative, Escherichia coli, is most commonly used in the bio-industry. The review is divided into sections dealing with bacteriophage inactivation by physical factors, chemical factors, and nanotechnology-based solutions.
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Affiliation(s)
- Sada Raza
- Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | - Mateusz Wdowiak
- Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | - Jan Paczesny
- Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland
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Ossowicz-Rupniewska P, Nowak A, Konopacki M, Kordas M, Kucharski Ł, Klebeko J, Świątek E, Rakoczy R. Increase of ibuprofen penetration through the skin by forming ion pairs with amino acid alkyl esters and exposure to the electromagnetic field. Eur J Pharm Biopharm 2023:S0939-6411(23)00117-0. [PMID: 37164233 DOI: 10.1016/j.ejpb.2023.05.003] [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: 03/12/2023] [Revised: 04/24/2023] [Accepted: 05/02/2023] [Indexed: 05/12/2023]
Abstract
A method of increasing the permeability of ibuprofen through the skin using a rotating magnetic field (RMF) is presented. This study evaluated whether 50 Hz RMF modifies ibuprofen's permeability through the skin. Ibuprofen and its structural modifications in the form of ibuprofenates of isopropyl esters of L-amino acids such as L-valine, L-phenylalanine, L-proline, and L-aspartic acid were used in the research. To this end, Franz cells with skin as membrane were exposed to 50 Hz RMF with 5% ibuprofen and its derivatives in an ethanol solution for 48 h. Following the exposures, the amount of penetrated compound was analysed. Regardless of the compound tested, a significant increase in drug transport through the skin was observed. The differences in the first 30 minutes of permeation are particularly noticeable. Furthermore, it was shown that using RMF increases the permeability of ibuprofen from 4 to 244 times compared to the test without the RMF. The greatest differences were observed for unmodified ibuprofen. However, it is noteworthy that the largest amounts of the active substance were obtained with selected modifications and exposure to RMF. The RMF may be an innovative and interesting technology that increases the penetration of anti-inflammatory and anti-ache drugs through the skin.
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Affiliation(s)
- Paula Ossowicz-Rupniewska
- West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering, Department of Chemical Organic Technology and Polymeric Materials, Piastów Ave. 42, 71-065 Szczecin, Poland.
| | - Anna Nowak
- Pomeranian Medical University in Szczecin, Department of Cosmetic and Pharmaceutical Chemistry, Powstańców Wielkopolskich Ave. 72, 70-111 Szczecin, Poland
| | - Maciej Konopacki
- West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering, Department of Chemical and Process Engineering, Piastów Ave. 42, 71-065 Szczecin, Poland
| | - Marian Kordas
- West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering, Department of Chemical and Process Engineering, Piastów Ave. 42, 71-065 Szczecin, Poland
| | - Łukasz Kucharski
- Pomeranian Medical University in Szczecin, Department of Cosmetic and Pharmaceutical Chemistry, Powstańców Wielkopolskich Ave. 72, 70-111 Szczecin, Poland
| | - Joanna Klebeko
- West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering, Department of Chemical Organic Technology and Polymeric Materials, Piastów Ave. 42, 71-065 Szczecin, Poland
| | - Ewelina Świątek
- West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering, Department of Chemical Organic Technology and Polymeric Materials, Piastów Ave. 42, 71-065 Szczecin, Poland
| | - Rafał Rakoczy
- West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering, Department of Chemical and Process Engineering, Piastów Ave. 42, 71-065 Szczecin, Poland
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The use of the electromagnetic field in microbial process bioengineering. ADVANCES IN APPLIED MICROBIOLOGY 2022; 121:27-72. [PMID: 36328731 DOI: 10.1016/bs.aambs.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
An electromagnetic field (EMF) has been shown to have various stimulatory or inhibitory effects on microorganisms. Over the years, growing interest in this topic led to numerous discoveries suggesting the potential applicability of EMF in biotechnological processes. Among these observations are stimulative effects of this physical influence resulting in intensified biomass production, modification of metabolic activity, or pigments secretion. In this review, we present the current state of the art and underline the main findings of the application of EMF in bioprocessing and their practical meaning in process engineering using examples selected from studies on bacteria, archaea, microscopic fungi and yeasts, viruses, and microalgae. All biological data are presented concerning the classification of EMF. Furthermore, we aimed to highlight missing parts of contemporary knowledge and indicate weak spots in the approaches found in the literature.
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Nanoparticles Influence Lytic Phage T4-like Performance In Vitro. Int J Mol Sci 2022; 23:ijms23137179. [PMID: 35806179 PMCID: PMC9266768 DOI: 10.3390/ijms23137179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/25/2022] [Accepted: 06/26/2022] [Indexed: 02/01/2023] Open
Abstract
Little is known about interactions of non-filamentous, complex-structured lytic phages and free, non-ordered nanoparticles. Emerging questions about their possible bio-sanitization co-applications or predictions of possible contact effects in the environment require testing. Therefore, we revealed the influence of various nanoparticles (NPs; SiO2, TiO2-SiO2, TiO2, Fe3O4, Fe3O4-SiO2 and SiO2-Fe3O4-TiO2) on a T4-like phage. In great detail, we investigated phage plaque-forming ability, phage lytic performance, phage progeny burst times and titers by the eclipse phase determinations. Additionally, it was proved that TEM micrographs and results of NP zeta potentials (ZP) were crucial to explain the obtained microbiological data. We propose that the mere presence of the nanoparticle charge is not sufficient for the phage to attach specifically to the NPs, consequently influencing the phage performance. The zeta potential values in the NPs are of the greatest influence. The threshold values were established at ZP < −35 (mV) for phage tail binding, and ZP > 35 (mV) for phage head binding. When NPs do not meet these requirements, phage−nanoparticle physical interaction becomes nonspecific. We also showed that NPs altered the phage lytic activity, regardless of the used NP concentration. Most of the tested nanoparticles positively influenced the phage lytic performance, except for SiO2 and Fe3O4-SiO2, with a ZP lower than −35 (mV), binding with the phage infective part—the tail.
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