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AlAfeefi M, Al Numairy M, Al Dhamin A. Necrosis and Changes in Pigmentation Following Silver Nitrate Application: A Case Report. Adv Skin Wound Care 2024; 37:1-2. [PMID: 39037105 DOI: 10.1097/asw.0000000000000175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
ABSTRACT Silver nitrate has useful antimicrobial and anti-inflammatory effects. However, there are currently no guidelines in place for its use in cauterization and the management of hemostasis. This lack of guidelines has resulted in different approaches being taken in outpatient and healthcare settings, which can lead to a higher risk of adverse effects. The authors present a case that illustrates a classic but exaggerated adverse effect following silver nitrate application.
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Affiliation(s)
- Mariam AlAfeefi
- Mariam AlAfeefi, MD, is Medical Resident, Division of Dermatology, Department of Medicine, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates. At Tawam Hospital, Al Ain, United Arab Emirates, Mohammed Al Numairy, MBBS, is Surgeon, Department of Surgery; and Ammar Al Dhamin, MRCSI, JMC, MB, ChB, is Plastic Surgeon, Division of Plastic Surgery
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2
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Wang YS, Shi YX, Liu QQ, Hu LQ, Ma FB, Zhang JR, Tang KM, Tang B, Dai J. Synthesis of novel silver-loaded clay AgF@Hec for the prevention of dental caries in vitro. Biomed Mater 2024; 19:045037. [PMID: 38810617 DOI: 10.1088/1748-605x/ad51c1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 05/29/2024] [Indexed: 05/31/2024]
Abstract
Dental caries, a chronic infectious disease characterized by tooth mineral loss caused by plaque, is one of the major global public health problems. Silver diamine fluoride (SDF) has been proven to be a highly effective anti-caries drug due to its high bacterial inhibition and remineralization ability. However, the SDF solution is unstable, which immensely limits its clinical application. Therefore, new silver-load clay named AgF@Hec was designed by replacing the NH3with hectorite in this study. Fourier transform infrared spectroscopy and x-ray diffraction spectroscopy were employed to confirm the structure of AgF@Hec. Dynamic light scattering analysis was used to reveal the effect of different hectorite concentrations on the stability of AgF@Hec. Moreover, AgF@Hec exhibits significant remineralization and hardness recovery of the initial carious lesions. Bacteriostatic experiments also proved that it has a significant inhibitory effect onA. Viscosus, S. mutans, S. sanguinis, S. salivarius, Lactobacillus sp.and both gram-positive and gram-negative bacteria. We therefore believed that AgF@Hec should be a promising biomaterial that can be applied in the prevention of dental caries.
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Affiliation(s)
- Y S Wang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - Y X Shi
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - Q Q Liu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - L Q Hu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - F B Ma
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - J R Zhang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - K M Tang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, People's Republic of China
- ShenZhen College of International Education, shenzhen, People's Republic of China
| | - B Tang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, People's Republic of China
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, shenzhen, People's Republic of China
| | - J Dai
- Department of Stomatology, General Hospital of Shenzhen University, Institute of Stomatology, Shenzhen University, shenzhen, People's Republic of China
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3
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Ceresa C, Travagin F, Marchetti A, Tessarolo F, Fracchia L, Giovenzana GB, Bosetti M. An In Vitro Study on the Application of Silver-Doped Platelet-Rich Plasma in the Prevention of Post-Implant-Associated Infections. Int J Mol Sci 2024; 25:4842. [PMID: 38732057 PMCID: PMC11084394 DOI: 10.3390/ijms25094842] [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: 03/22/2024] [Revised: 04/18/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
Implant therapy is a common treatment option in dentistry and orthopedics, but its application is often associated with an increased risk of microbial contamination of the implant surfaces that cause bone tissue impairment. This study aims to develop two silver-enriched platelet-rich plasma (PRP) multifunctional scaffolds active at the same time in preventing implant-associated infections and stimulating bone regeneration. Commercial silver lactate (L) and newly synthesized silver deoxycholate:β-Cyclodextrin (B), were studied in vitro. Initially, the antimicrobial activity of the two silver soluble forms and the PRP enriched with the two silver forms has been studied on microbial planktonic cells. At the same time, the biocompatibility of silver-enriched PRPs has been assessed by an MTT test on human primary osteoblasts (hOBs). Afterwards, an investigation was conducted to evaluate the activity of selected concentrations and forms of silver-enriched PRPs in inhibiting microbial biofilm formation and stimulating hOB differentiation. PRP-L (0.3 µg/mm2) and PRP-B (0.2 µg/mm2) counteract Staphylococcus aureus, Staphylococcus epidermidis and Candida albicans planktonic cell growth and biofilm formation, preserving hOB viability without interfering with their differentiation capability. Overall, the results obtained suggest that L- and B-enriched PRPs represent a promising preventive strategy against biofilm-related implant infections and demonstrate a new silver formulation that, together with increasing fibrin binding protecting silver in truncated cone-shaped cyclic oligosaccharides, achieved comparable inhibitory results on prokaryotic cells at a lower concentration.
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Affiliation(s)
- Chiara Ceresa
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Fabio Travagin
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Alice Marchetti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Francesco Tessarolo
- Department of Industrial Engineering & BIOtech, University of Trento, 38123 Trento, Italy;
| | - Letizia Fracchia
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Giovanni Battista Giovenzana
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Michela Bosetti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
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4
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Ding G, Gao X, Tan Y, Hao Z, Wang X, Zhang C, Deng A. Local application of silver nitrate as an adjuvant treatment before deep lamellar keratoplasty for fungal keratitis poorly responsive to medical treatment. Front Med (Lausanne) 2024; 10:1292701. [PMID: 38317754 PMCID: PMC10838974 DOI: 10.3389/fmed.2023.1292701] [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: 09/12/2023] [Accepted: 12/11/2023] [Indexed: 02/07/2024] Open
Abstract
Objective The purpose of this study is to evaluate the efficacy and safety of the local application of silver nitrate (LASN) as an adjuvant treatment before deep lamellar keratoplasty (DLKP) for fungal keratitis responding poorly to medical treatment. Methods A total of 12 patients (12 eyes) with fungal keratitis responding poorly to medical treatment (for at least 2 weeks) were included. LASN was performed using 2% silver nitrate, the ulcer was cleaned and debrided, and then, the silver nitrate cotton stick was applied to the surface of the ulcer for a few seconds. The effect of LASN was recorded. The number of hyphae before and after treatment was determined by confocal microscope. After the condition of the ulcer improved, DLKP was performed. Fungal recurrence, best-corrected visual acuity (BCVA), loose sutures, and endothelial cell density (ECD) were recorded in detail. Results Clinical resolution of corneal infiltration and edema was observed, and the ulcer boundary became clear in all 12 patients after 7-9 days of LASN. Confocal microscopy showed that the number of hyphae was significantly reduced. Ocular pain peaked on days 1 and 2 after treatment, and 9 patients (75%, day 1) and 1 patient (8.3%, day 2) required oral pain medication. During the follow-up period after DLKP, no fungal recurrence and loose sutures were observed. After the operation, the BCVA of all patients improved. The mean corneal ECD was 2,166.83 ± 119.75 cells/mm2. Conclusion The LASN was safe and effective and can be well tolerated by patients. Eye pain can be relieved quickly. LASN as an adjuvant treatment before DLKP might be a promising therapeutic strategy.
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Affiliation(s)
- Gang Ding
- Department of Ophthalmology, The Jinan Second People's Hospital, Jinan, China
| | - Xin Gao
- Department of Ophthalmology, The Jinan Second People's Hospital, Jinan, China
| | - Yue Tan
- Department of Ophthalmology, The Jinan Second People's Hospital, Jinan, China
| | - Zhongkai Hao
- Department of Ophthalmology, School of Clinical Medicine, Weifang Medical University, Weifang, China
| | - Ximing Wang
- Department of Ophthalmology, The Jinan Second People's Hospital, Jinan, China
| | - Chenming Zhang
- Department of Ophthalmology, The Jinan Second People's Hospital, Jinan, China
| | - Aijun Deng
- Department of Ophthalmology, Affiliated Hospital of Weifang Medical University, Weifang, China
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5
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Ekram B, Tolba E, El-Sayed AF, Müller WEG, Schröder HC, Wang X, Abdel-Hady BM. Cell migration, DNA fragmentation and antibacterial properties of novel silver doped calcium polyphosphate nanoparticles. Sci Rep 2024; 14:565. [PMID: 38177275 PMCID: PMC10766647 DOI: 10.1038/s41598-023-50849-z] [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: 02/12/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024] Open
Abstract
To combat infections, silver was used extensively in biomedical field but there was a need for a capping agent to eliminate its cytotoxic effects. In this study, polymeric calcium polyphosphate was doped by silver with three concentrations 1, 3 or 5 mol.% and were characterized by TEM, XRD, FTIR, TGA. Moreover, cytotoxicity, antibacterial, cell migration and DNA fragmentation assays were done to assure its safety. The results showed that the increase in silver percentage caused an increase in particle size. XRD showed the silver peaks, which indicated that it is present in its metallic form. The TGA showed that thermal stability was increased by increasing silver content. The antibacterial tests showed that the prepared nanoparticles have an antibacterial activity against tested pathogens. In addition, the cytotoxicity results showed that the samples exhibited non-cytotoxic behavior even with the highest doping concentration (5% Ag-CaPp). The cell migration assay showed that the increase in the silver concentration enhances cell migration up to 3% Ag-CaPp. The DNA fragmentation test revealed that all the prepared nanoparticles caused no fragmentation. From the results we can deduce that 3% Ag-CaPp was the optimum silver doped calcium polyphosphate concentration that could be used safely for medical applications.
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Affiliation(s)
- Basma Ekram
- Polymers and Pigments Department, Chemical Industries Research Institute, National Research Centre, Cairo, 12622, Egypt.
| | - Emad Tolba
- Polymers and Pigments Department, Chemical Industries Research Institute, National Research Centre, Cairo, 12622, Egypt
| | - Ahmed F El-Sayed
- Microbial Genetics Department, Biotechnology Research Institute, National Research Centre, Cairo, 12622, Egypt
- Egypt Center for Research and Regenerative Medicine (ECRRM), Cairo, Egypt
| | - Werner E G Müller
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128, Mainz, Germany
| | - Heinz C Schröder
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128, Mainz, Germany
| | - Xiaohong Wang
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128, Mainz, Germany
| | - Bothaina M Abdel-Hady
- Polymers and Pigments Department, Chemical Industries Research Institute, National Research Centre, Cairo, 12622, Egypt
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Valiulin SV, Onischuk AA, Pyryaeva AP, An’kov SV, Baklanov AM, Shkil NN, Nefedova EV, Ershov KS, Tolstikova TG, Dultseva GG. Aerosol Inhalation Delivery of Ag Nanoparticles in Mice: Pharmacokinetics and Antibacterial Action. Antibiotics (Basel) 2023; 12:1534. [PMID: 37887235 PMCID: PMC10604031 DOI: 10.3390/antibiotics12101534] [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: 09/10/2023] [Revised: 09/24/2023] [Accepted: 10/02/2023] [Indexed: 10/28/2023] Open
Abstract
The aerosol inhalation delivery of composite particles consisting of Ag nanoparticles enveloped by polyvinylpyrrolidone was investigated in experiments with mice. An ultrasonic nebulizing system was created for the generation of aerosols with a mean diameter and mass concentration of 700 ± 50 nm and 65 ± 5 mg/m3, respectively. The mass fraction of Ag in the composite particles was α = 0.061. The aerosol delivery was performed in a whole-body chamber with an exposition time of 20 min. Pharmacokinetic measurements were taken and the silver concentrations in the blood and lungs of the mice were measured as a function of time after exposition by means of electrothermal (graphite furnace) atomic absorption spectrometry. The inhalation dose and other pharmacokinetic parameters were determined. The antibacterial effect of aerosolized silver was assessed for mice infected with Klebsiella pneumoniae 82 and Staphylococcus aureus ATCC 25953. The survival rate of the infected mice after the aerosol exposure demonstrated the high antibacterial efficiency of Ag nanoparticles after inhalation delivery.
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Affiliation(s)
- Sergey V. Valiulin
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
| | - Andrei A. Onischuk
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
| | - Alexandra P. Pyryaeva
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
| | - Sergey V. An’kov
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
- Vorozhtsov Institute of Organic Chemistry SB RAS, 9 Lavrentyev Ave., 630090 Novosibirsk, Russia
| | - Anatoly M. Baklanov
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
| | - Nikolay N. Shkil
- Siberian Federal Scientific Center of Agro-BioTechnologies RAS, 630501 Krasnoobsk, Russia
| | - Ekaterina V. Nefedova
- Siberian Federal Scientific Center of Agro-BioTechnologies RAS, 630501 Krasnoobsk, Russia
| | - Kirill S. Ershov
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
| | - Tatyana G. Tolstikova
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
- Vorozhtsov Institute of Organic Chemistry SB RAS, 9 Lavrentyev Ave., 630090 Novosibirsk, Russia
| | - Galina G. Dultseva
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
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7
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Zhang Z, Zhao Y, Hu Z, Si Z, Yang Z. 2-Pyridinecarboxaldehyde-Modified Chitosan-Silver Complexes: Optimized Preparation, Characterization, and Antibacterial Activity. Molecules 2023; 28:6777. [PMID: 37836620 PMCID: PMC10574447 DOI: 10.3390/molecules28196777] [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: 09/05/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
The widespread prevalence of infectious bacteria is one of the greatest threats to public health, and consequently, there is an urgent need for efficient and broad-spectrum antibacterial materials that are antibiotic-free. In this study, 2-pyridinecarboxaldehyde (PCA) was grafted onto chitosan (CS) and the modified CS coordinated with silver ions to prepare PCA-CS-Ag complexes with antibacterial activity. To obtain complexes with a high silver content, the preparation process was optimized using single-factor experiments and response surface methodology. Under the optimal preparation conditions (an additional amount of silver nitrate (58 mg), a solution pH of 3.9, and a reaction temperature of 69 °C), the silver content of the PCA-CS-Ag complex reached 13.27 mg/g. The structure of the PCA-CS-Ag complex was subsequently verified using ultraviolet-visible spectroscopy, Fourier-transform infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, and thermogravimetric analysis. Furthermore, three possible complexation modes of the PCA-CS-Ag complex were proposed using molecular mechanics calculations. The results of the antibacterial assay in vitro showed that the PCA-CS-Ag complex exhibited strong antibacterial activity against both Gram-positive and Gram-negative bacteria, exerting the synergistic antibacterial effect of modified chitosan and silver ions. Therefore, the PCA-CS-Ag complex is expected to be developed as an effective antibacterial material with promising applications in food films, packaging, medical dressings, and other fields.
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Affiliation(s)
- Zhaoyu Zhang
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China; (Z.Z.); (Y.Z.); (Z.S.)
| | - Yurong Zhao
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China; (Z.Z.); (Y.Z.); (Z.S.)
| | - Zhang Hu
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China; (Z.Z.); (Y.Z.); (Z.S.)
| | - Zhenyu Si
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China; (Z.Z.); (Y.Z.); (Z.S.)
| | - Ziming Yang
- South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, China;
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8
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Li Y, Meng Q, Chen S, Ling P, Kuss MA, Duan B, Wu S. Advances, challenges, and prospects for surgical suture materials. Acta Biomater 2023; 168:78-112. [PMID: 37516417 DOI: 10.1016/j.actbio.2023.07.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/07/2023] [Accepted: 07/24/2023] [Indexed: 07/31/2023]
Abstract
As one of the long-established and necessary medical devices, surgical sutures play an essentially important role in the closing and healing of damaged tissues and organs postoperatively. The recent advances in multiple disciplines, like materials science, engineering technology, and biomedicine, have facilitated the generation of various innovative surgical sutures with humanization and multi-functionalization. For instance, the application of numerous absorbable materials is assuredly a marvelous progression in terms of surgical sutures. Moreover, some fantastic results from recent laboratory research cannot be ignored either, ranging from the fiber generation to the suture structure, as well as the suture modification, functionalization, and even intellectualization. In this review, the suture materials, including natural or synthetic polymers, absorbable or non-absorbable polymers, and metal materials, were first introduced, and then their advantages and disadvantages were summarized. Then we introduced and discussed various fiber fabrication strategies for the production of surgical sutures. Noticeably, advanced nanofiber generation strategies were highlighted. This review further summarized a wide and diverse variety of suture structures and further discussed their different features. After that, we covered the advanced design and development of surgical sutures with multiple functionalizations, which mainly included surface coating technologies and direct drug-loading technologies. Meanwhile, the review highlighted some smart and intelligent sutures that can monitor the wound status in a real-time manner and provide on-demand therapies accordingly. Furthermore, some representative commercial sutures were also introduced and summarized. At the end of this review, we discussed the challenges and future prospects in the field of surgical sutures in depth. This review aims to provide a meaningful reference and guidance for the future design and fabrication of innovative surgical sutures. STATEMENT OF SIGNIFICANCE: This review article introduces the recent advances of surgical sutures, including material selection, fiber morphology, suture structure and construction, as well as suture modification, functionalization, and even intellectualization. Importantly, some innovative strategies for the construction of multifunctional sutures with predetermined biological properties are highlighted. Moreover, some important commercial suture products are systematically summarized and compared. This review also discusses the challenges and future prospects of advanced sutures in a deep manner. In all, this review is expected to arouse great interest from a broad group of readers in the fields of multifunctional biomaterials and regenerative medicine.
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Affiliation(s)
- Yiran Li
- College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Qi Meng
- College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Shaojuan Chen
- College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China
| | - Peixue Ling
- Shandong Academy of Pharmaceutical Science, Jinan, 250101, China
| | - Mitchell A Kuss
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Bin Duan
- Mary & Dick Holland Regenerative Medicine Program and Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Shaohua Wu
- College of Textiles & Clothing, Qingdao University, Qingdao, 266071, China; Shandong Academy of Pharmaceutical Science, Jinan, 250101, China.
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Raza MA, Kanwal Z, Riaz S, Amjad M, Rasool S, Naseem S, Abbas N, Ahmad N, Alomar SY. In-Vivo Bactericidal Potential of Mangifera indica Mediated Silver Nanoparticles against Aeromonas hydrophila in Cirrhinus mrigala. Biomedicines 2023; 11:2272. [PMID: 37626768 PMCID: PMC10452189 DOI: 10.3390/biomedicines11082272] [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: 06/30/2023] [Revised: 08/06/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
The present study reports the green synthesis of silver nanoparticles from leaves' extract of Mangifera indica (M. indica) and their antibacterial efficacy against Aeromonas hydrophila (A. hydrophila) in Cirrhinus mrigala (C. mrigala). The prepared M. indica mediated silver nanoparticles (Mi-AgNPs) were found to be polycrystalline in nature, spherical in shapes with average size of 62 ± 13 nm. C. mrigala (n = ±15/group) were divided into six groups i.e., G1: control, G2: A. hydrophila challenged, G3: A. hydrophila challenged + Mi-AgNPs (0.01 mg/L), G4: A. hydrophila challenged + Mi-AgNPs (0.05 mg/L), G5: A. hydrophila challenged + Mi-AgNPs (0.1 mg/L) and G6: A. hydrophila challenged + M. indica extract (0.1 mg/L). Serum biochemical, hematological, histological and oxidative biomarkers were evaluated after 15 days of treatment. The liver enzyme activities, serum proteins, hematological parameters and oxidative stress markers were found to be altered in the challenged fish but showed retrieval effects with Mi-AgNPs treatment. The histological analysis of liver, gills and kidney of the challenged fish also showed regaining effects following Mi-AgNPs treatment. A CFU assay from muscle tissue provided quantitative data that Mi-AgNPs can hinder the bacterial proliferation in challenged fish. The findings of this work suggest that M. indica based silver nanoparticles can be promising candidates for the control and treatment of microbial infections in aquaculture.
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Affiliation(s)
- Muhammad Akram Raza
- Centre of Excellence in Solid State Physics, University of the Punjab, Lahore 54590, Pakistan; (S.R.); (S.R.); (S.N.)
| | - Zakia Kanwal
- Department of Zoology, Lahore College for Women University, Jail Road, Lahore 54000, Pakistan;
| | - Saira Riaz
- Centre of Excellence in Solid State Physics, University of the Punjab, Lahore 54590, Pakistan; (S.R.); (S.R.); (S.N.)
| | - Maira Amjad
- Department of Physics, Clarkson University, Potsdam, NY 13699, USA;
| | - Shafqat Rasool
- Centre of Excellence in Solid State Physics, University of the Punjab, Lahore 54590, Pakistan; (S.R.); (S.R.); (S.N.)
| | - Shahzad Naseem
- Centre of Excellence in Solid State Physics, University of the Punjab, Lahore 54590, Pakistan; (S.R.); (S.R.); (S.N.)
| | - Nadeem Abbas
- Department of Chemistry, University of Leicester, Leicester LE1 7RH, UK;
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Suliman Yousef Alomar
- Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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10
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Kaiser KG, Delattre V, Frost VJ, Buck GW, Phu JV, Fernandez TG, Pavel IE. Nanosilver: An Old Antibacterial Agent with Great Promise in the Fight against Antibiotic Resistance. Antibiotics (Basel) 2023; 12:1264. [PMID: 37627684 PMCID: PMC10451389 DOI: 10.3390/antibiotics12081264] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/21/2023] [Accepted: 07/27/2023] [Indexed: 08/27/2023] Open
Abstract
Antibiotic resistance in bacteria is a major problem worldwide that costs 55 billion USD annually for extended hospitalization, resource utilization, and additional treatment expenditures in the United States. This review examines the roles and forms of silver (e.g., bulk Ag, silver salts (AgNO3), and colloidal Ag) from antiquity to the present, and its eventual incorporation as silver nanoparticles (AgNPs) in numerous antibacterial consumer products and biomedical applications. The AgNP fabrication methods, physicochemical properties, and antibacterial mechanisms in Gram-positive and Gram-negative bacterial models are covered. The emphasis is on the problematic ESKAPE pathogens and the antibiotic-resistant pathogens of the greatest human health concern according to the World Health Organization. This review delineates the differences between each bacterial model, the role of the physicochemical properties of AgNPs in the interaction with pathogens, and the subsequent damage of AgNPs and Ag+ released by AgNPs on structural cellular components. In closing, the processes of antibiotic resistance attainment and how novel AgNP-antibiotic conjugates may synergistically reduce the growth of antibiotic-resistant pathogens are presented in light of promising examples, where antibiotic efficacy alone is decreased.
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Affiliation(s)
- Kyra G. Kaiser
- Department of Physical and Environmental Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA; (K.G.K.); (V.D.); (G.W.B.)
- Department of Life Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
| | - Victoire Delattre
- Department of Physical and Environmental Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA; (K.G.K.); (V.D.); (G.W.B.)
- Department of Life Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
| | - Victoria J. Frost
- Department of Chemistry, Physics, Geology and the Environment, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA; (V.J.F.); (J.V.P.)
- Department of Biology, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA
| | - Gregory W. Buck
- Department of Physical and Environmental Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA; (K.G.K.); (V.D.); (G.W.B.)
- Department of Life Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
| | - Julianne V. Phu
- Department of Chemistry, Physics, Geology and the Environment, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA; (V.J.F.); (J.V.P.)
- Department of Biology, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA
| | - Timea G. Fernandez
- Department of Chemistry, Physics, Geology and the Environment, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA; (V.J.F.); (J.V.P.)
- Department of Biology, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA
| | - Ioana E. Pavel
- Department of Physical and Environmental Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA; (K.G.K.); (V.D.); (G.W.B.)
- Department of Life Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
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11
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Sheikh-Oleslami S, Tao B, D'Souza J, Butt F, Suntharalingam H, Rempel L, Amiri N. A Review of Metal Nanoparticles Embedded in Hydrogel Scaffolds for Wound Healing In Vivo. Gels 2023; 9:591. [PMID: 37504470 PMCID: PMC10379627 DOI: 10.3390/gels9070591] [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: 06/27/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/29/2023] Open
Abstract
An evolving field, nanotechnology has made its mark in the fields of nanoscience, nanoparticles, nanomaterials, and nanomedicine. Specifically, metal nanoparticles have garnered attention for their diverse use and applicability to dressings for wound healing due to their antimicrobial properties. Given their convenient integration into wound dressings, there has been increasing focus dedicated to investigating the physical, mechanical, and biological characteristics of these nanoparticles as well as their incorporation into biocomposite materials, such as hydrogel scaffolds for use in lieu of antibiotics as well as to accelerate and ameliorate healing. Though rigorously tested and applied in both medical and non-medical applications, further investigations have not been carried out to bring metal nanoparticle-hydrogel composites into clinical practice. In this review, we provide an up-to-date, comprehensive review of advancements in the field, with emphasis on implications on wound healing in in vivo experiments.
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Affiliation(s)
- Sara Sheikh-Oleslami
- Faculty of Medicine, The University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Brendan Tao
- Faculty of Medicine, The University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Jonathan D'Souza
- Faculty of Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada
| | - Fahad Butt
- Faculty of Science, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada
| | - Hareshan Suntharalingam
- Faculty of Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada
| | - Lucas Rempel
- Faculty of Medicine, The University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Nafise Amiri
- International Collaboration on Repair Discoveries, 818 West 10th Avenue, Vancouver, BC V5Z 1M9, Canada
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12
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Pimentel BNADS, De Annunzio SR, Assis M, Barbugli PA, Longo E, Vergani CE. Biocompatibility and inflammatory response of silver tungstate, silver molybdate, and silver vanadate microcrystals. Front Bioeng Biotechnol 2023; 11:1215438. [PMID: 37545886 PMCID: PMC10399690 DOI: 10.3389/fbioe.2023.1215438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/12/2023] [Indexed: 08/08/2023] Open
Abstract
Silver tungstate (α-Ag2WO4), silver molybdate (β-Ag2MoO4), and silver vanadate (α-AgVO3) microcrystals have shown interesting antimicrobial properties. However, their biocompatibility is not yet fully understood. Cytotoxicity and the inflammatory response of silver-containing microcrystals were analyzed in THP-1 and THP-1 differentiated as macrophage-like cells, with the alamarBlue™ assay, flow cytometry, confocal microscopy, and ELISA. The present investigation also evaluated redox signaling and the production of cytokines (TNFα, IL-1β, IL-6, and IL-8) and matrix metalloproteinases (MMP-8 and -9). The results showed that α-AgVO3 (3.9 μg/mL) did not affect cell viability (p > 0.05). α-Ag2WO4 (7.81 μg/mL), β-Ag2MoO4 (15.62 μg/mL), and α-AgVO3 (15.62 μg/mL) slightly decreased cell viability (p ≤ 0.003). All silver-containing microcrystals induced the production of O2 - and this effect was mitigated by Reactive Oxygen Species (ROS) scavenger and N-acetylcysteine (NAC). TNFα, IL-6 and IL-1β were not detected in THP-1 cells, while their production was either lower (p ≤ 0.0321) or similar to the control group (p ≥ 0.1048) for macrophage-like cells. The production of IL-8 by both cellular phenotypes was similar to the control group (p ≥ 0.3570). The release of MMP-8 was not detected in any condition in THP-1 cells. Although MMP-9 was released by THP-1 cells exposed to α-AgVO3 (3.9 μg/mL), no significant difference was found with control (p = 0.7). Regarding macrophage-like cells, the release of MMP-8 and -9 decreased in the presence of all microcrystals (p ≤ 0.010). Overall, the present work shows a promising biocompatibility profile of, α-Ag2WO4, β-Ag2MoO4, and α-AgVO3 microcrystals.
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Affiliation(s)
| | | | - Marcelo Assis
- Departament of Physical and Analytical Chemistry, University Jaume I (UJI), Castelló, Spain
| | | | - Elson Longo
- CDMF, Federal University of São Carlos (UFSCar), São Carlos, Brazil
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13
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Butler J, Handy RD, Upton M, Besinis A. Review of Antimicrobial Nanocoatings in Medicine and Dentistry: Mechanisms of Action, Biocompatibility Performance, Safety, and Benefits Compared to Antibiotics. ACS NANO 2023; 17:7064-7092. [PMID: 37027838 PMCID: PMC10134505 DOI: 10.1021/acsnano.2c12488] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This review discusses topics relevant to the development of antimicrobial nanocoatings and nanoscale surface modifications for medical and dental applications. Nanomaterials have unique properties compared to their micro- and macro-scale counterparts and can be used to reduce or inhibit bacterial growth, surface colonization and biofilm development. Generally, nanocoatings exert their antimicrobial effects through biochemical reactions, production of reactive oxygen species or ionic release, while modified nanotopographies create a physically hostile surface for bacteria, killing cells via biomechanical damage. Nanocoatings may consist of metal nanoparticles including silver, copper, gold, zinc, titanium, and aluminum, while nonmetallic compounds used in nanocoatings may be carbon-based in the form of graphene or carbon nanotubes, or composed of silica or chitosan. Surface nanotopography can be modified by the inclusion of nanoprotrusions or black silicon. Two or more nanomaterials can be combined to form nanocomposites with distinct chemical or physical characteristics, allowing combination of different properties such as antimicrobial activity, biocompatibility, strength, and durability. Despite their wide range of applications in medical engineering, questions have been raised regarding potential toxicity and hazards. Current legal frameworks do not effectively regulate antimicrobial nanocoatings in matters of safety, with open questions remaining about risk analysis and occupational exposure limits not considering coating-based approaches. Bacterial resistance to nanomaterials is also a concern, especially where it may affect wider antimicrobial resistance. Nanocoatings have excellent potential for future use, but safe development of antimicrobials requires careful consideration of the "One Health" agenda, appropriate legislation, and risk assessment.
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Affiliation(s)
- James Butler
- School
of Engineering, Computing and Mathematics, Faculty of Science and
Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
| | - Richard D. Handy
- School
of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
| | - Mathew Upton
- School
of Biomedical Sciences, Faculty of Health, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United
Kingdom
| | - Alexandros Besinis
- School
of Engineering, Computing and Mathematics, Faculty of Science and
Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
- Peninsula
Dental School, Faculty of Health, University
of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
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14
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Rossner P, Cervena T, Echalar B, Palacka K, Milcova A, Novakova Z, Sima M, Simova Z, Vankova J, Holan V. Metal Nanoparticles with Antimicrobial Properties: The Toxicity Response in Mouse Mesenchymal Stem Cells. TOXICS 2023; 11:253. [PMID: 36977018 PMCID: PMC10057305 DOI: 10.3390/toxics11030253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/01/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Some metal nanoparticles (NP) are characterized by antimicrobial properties with the potential to be used as alternative antibiotics. However, NP may negatively impact human organism, including mesenchymal stem cells (MSC), a cell population contributing to tissue growth and regeneration. To address these issues, we investigated the toxic effects of selected NP (Ag, ZnO, and CuO) in mouse MSC. MSC were treated with various doses of NP for 4 h, 24 h, and 48 h and multiple endpoints were analyzed. Reactive oxygen species were generated after 48 h CuO NP exposure. Lipid peroxidation was induced after 4 h and 24 h treatment, regardless of NP and/or tested dose. DNA fragmentation and oxidation induced by Ag NP showed dose responses for all the periods. For other NP, the effects were observed for shorter exposure times. The impact on the frequency of micronuclei was weak. All the tested NP increased the sensitivity of MSC to apoptosis. The cell cycle was most affected after 24 h, particularly for Ag NP treatment. In summary, the tested NP induced numerous adverse changes in MSC. These results should be taken into consideration when planning the use of NP in medical applications where MSC are involved.
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Affiliation(s)
- Pavel Rossner
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
| | - Tereza Cervena
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
| | - Barbora Echalar
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
| | - Katerina Palacka
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
| | - Alena Milcova
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
| | - Zuzana Novakova
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
| | - Michal Sima
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
| | - Zuzana Simova
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
| | - Jolana Vankova
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
| | - Vladimir Holan
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, 142 00 Prague, Czech Republic
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15
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Francisco P, Neves Amaral M, Neves A, Ferreira-Gonçalves T, Viana AS, Catarino J, Faísca P, Simões S, Perdigão J, Charmier AJ, Gaspar MM, Reis CP. Pluronic® F127 Hydrogel Containing Silver Nanoparticles in Skin Burn Regeneration: An Experimental Approach from Fundamental to Translational Research. Gels 2023; 9:gels9030200. [PMID: 36975649 PMCID: PMC10048756 DOI: 10.3390/gels9030200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
Presently, skin burns are considered one of the main public health problems and lack therapeutic options. In recent years, silver nanoparticles (AgNPs) have been widely studied, playing an increasingly important role in wound healing due to their antibacterial activity. This work is focused on the production and characterization of AgNPs loaded in a Pluronic® F127 hydrogel, as well as assessing its antimicrobial and wound-healing potential. Pluronic® F127 has been extensively explored for therapeutic applications mainly due to its appealing properties. The developed AgNPs had an average size of 48.04 ± 14.87 nm (when prepared by method C) and a negative surface charge. Macroscopically, the AgNPs solution presented a translucent yellow coloration with a characteristic absorption peak at 407 nm. Microscopically, the AgNPs presented a multiform morphology with small sizes (~50 nm). Skin permeation studies revealed that no AgNPs permeated the skin after 24 h. AgNPs further demonstrated antimicrobial activity against different bacterial species predominant in burns. A chemical burn model was developed to perform preliminary in vivo assays and the results showed that the performance of the developed AgNPs loaded in hydrogel, with smaller silver dose, was comparable with a commercial silver cream using higher doses. In conclusion, hydrogel-loaded AgNPs is potentially an important resource in the treatment of skin burns due to their proven efficacy by topical administration.
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Affiliation(s)
- Pedro Francisco
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Mariana Neves Amaral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
- Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal
| | - Afonso Neves
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Tânia Ferreira-Gonçalves
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
- Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal
| | - Ana S. Viana
- Centro de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
| | - José Catarino
- Faculdade de Medicina Veterinária, Universidade Lusoófona de Humanidades e Tecnologias, 1749-024 Lisbon, Portugal
| | - Pedro Faísca
- Faculdade de Medicina Veterinária, Universidade Lusoófona de Humanidades e Tecnologias, 1749-024 Lisbon, Portugal
- CBIOS—Research Center for Biosciences & Health Technologies, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisbon, Portugal
| | - Sandra Simões
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - João Perdigão
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Adília J. Charmier
- DREAMS, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisbon, Portugal
| | - M. Manuela Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Catarina Pinto Reis
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
- Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal
- Correspondence: ; Tel.: +351-217-946-429 (ext. 14244)
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16
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Pseudomonas aeruginosa and Staphylococcus aureus Display Differential Proteomic Responses to the Silver(I) Compound, SBC3. Antibiotics (Basel) 2023; 12:antibiotics12020348. [PMID: 36830259 PMCID: PMC9952281 DOI: 10.3390/antibiotics12020348] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/27/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023] Open
Abstract
The urgent need to combat antibiotic resistance and develop novel antimicrobial therapies has triggered studies on novel metal-based formulations. N-heterocyclic carbene (NHC) complexes coordinate transition metals to generate a broad range of anticancer and/or antimicrobial agents, with ongoing efforts being made to enhance the lipophilicity and drug stability. The lead silver(I) acetate complex, 1,3-dibenzyl-4,5-diphenylimidazol-2-ylidene (NHC*) (SBC3), has previously demonstrated promising growth and biofilm-inhibiting properties. In this work, the responses of two structurally different bacteria to SBC3 using label-free quantitative proteomics were characterised. Multidrug-resistant Pseudomonas aeruginosa (Gram-negative) and Staphylococcus aureus (Gram-positive) are associated with cystic fibrosis lung colonisation and chronic wound infections, respectively. SBC3 increased the abundance of alginate biosynthesis, the secretion system and drug detoxification proteins in P. aeruginosa, whilst a variety of pathways, including anaerobic respiration, twitching motility and ABC transport, were decreased in abundance. This contrasted the affected pathways in S. aureus, where increased DNA replication/repair and cell redox homeostasis and decreased protein synthesis, lipoylation and glucose metabolism were observed. Increased abundance of cell wall/membrane proteins was indicative of the structural damage induced by SBC3 in both bacteria. These findings show the potential broad applications of SBC3 in treating Gram-positive and Gram-negative bacteria.
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17
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Krishna GA, Dhanya T, Shanty A, Raghu K, Mohanan P. Transition metal complexes of imidazole derived Schiff bases: Antioxidant/anti-inflammatory/antimicrobial/enzyme inhibition and cytotoxicity properties. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Kapusta O, Jarosz A, Stadnik K, Giannakoudakis DA, Barczyński B, Barczak M. Antimicrobial Natural Hydrogels in Biomedicine: Properties, Applications, and Challenges-A Concise Review. Int J Mol Sci 2023; 24:2191. [PMID: 36768513 PMCID: PMC9917233 DOI: 10.3390/ijms24032191] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
Natural hydrogels are widely used as biomedical materials in many areas, including drug delivery, tissue scaffolds, and particularly wound dressings, where they can act as an antimicrobial factor lowering the risk of microbial infections, which are serious health problems, especially with respect to wound healing. In this review article, a number of promising strategies in the development of hydrogels with biocidal properties, particularly those originating from natural polymers, are briefly summarized and concisely discussed. Common strategies to design and fabricate hydrogels with intrinsic or stimuli-triggered antibacterial activity are exemplified, and the mechanisms lying behind these properties are also discussed. Finally, practical antibacterial applications are also considered while discussing the current challenges and perspectives.
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Affiliation(s)
- Oliwia Kapusta
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20031 Lublin, Poland
| | - Anna Jarosz
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20031 Lublin, Poland
| | - Katarzyna Stadnik
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20031 Lublin, Poland
| | | | - Bartłomiej Barczyński
- 1st Department of Oncological Gynecology and Gynecology, Medical University in Lublin, 20-059 Lublin, Poland
| | - Mariusz Barczak
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20031 Lublin, Poland
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19
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Delgado-Miguel C, Muñoz-Serrano AJ, Estefanía K, Velayos M, Miguel-Ferrero M, Martínez L. Matrix Cauterization With Silver Nitrate in the Treatment of Ingrown Toenails in Children: Pilot Study. ACTAS DERMO-SIFILIOGRAFICAS 2023; 114:T19-T24. [PMID: 36574519 DOI: 10.1016/j.ad.2022.11.006] [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: 12/23/2021] [Accepted: 07/20/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Although partial onychectomy with chemical matricectomy has been described asthe treatment of choice, there is sparse evidence in the literature regarding the use of silvernitrate for matricectomy. Our aim is to describe the effectiveness of silver nitrate for matrixcauterization after partial onychectomy. METHODS A prospective observational study was performed on patients with ingrown toenailsstage 2-3 who underwent partial onychectomy with silver nitrate chemical matricectomy during 2018-2019 in our institution. All patients were evaluated in the outpatient clinic on the 7th and 30th post-operative day and a telephone evaluation was performed every 6 months afterthe surgical procedure to date. RESULTS One hundred and twenty-three patients, who underwent 231 partial onychectomies with silver nitrate chemical matricectomy were included, with a median follow-up of 21 months (interquartile range, 12-29). The procedure had an effectiveness of 95.3%, with only 11 recur-rences (4.7%) reported so far on follow-up. Postoperative infections were observed in 4 patients (1.7%). Adverse effects, such as pain and postoperative drainage, were irrelevant in mostpatients. CONCLUSIONS Silver nitrate matricectomy after partial onychectomy is an effective and safealternative for the treatment of ingrown toenail in children, with scarce postoperative morbidityand low recurrence rate.
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Affiliation(s)
- C Delgado-Miguel
- Departamento de Cirugía Pediátrica, Hospital Universitario La Paz, Madrid, España.
| | - A J Muñoz-Serrano
- Departamento de Cirugía Pediátrica, Hospital Universitario La Paz, Madrid, España
| | - K Estefanía
- Departamento de Cirugía Pediátrica, Hospital Universitario La Paz, Madrid, España
| | - M Velayos
- Departamento de Cirugía Pediátrica, Hospital Universitario La Paz, Madrid, España
| | - M Miguel-Ferrero
- Departamento de Cirugía Pediátrica, Hospital Universitario La Paz, Madrid, España
| | - L Martínez
- Departamento de Cirugía Pediátrica, Hospital Universitario La Paz, Madrid, España; Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Red de Salud Materno Infantil y del Desarrollo (SAMID), Hospital Infantil La Paz, Madrid, España
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20
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Matrix Cauterization With Silver Nitrate in the Treatment of Ingrown Toenails in Children: Pilot Study. ACTAS DERMO-SIFILIOGRAFICAS 2023; 114:19-24. [PMID: 35905818 DOI: 10.1016/j.ad.2022.07.015] [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: 12/23/2021] [Revised: 07/15/2022] [Accepted: 07/20/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Although partial onychectomy with chemical matricectomy has been described as the treatment of choice, there is sparse evidence in the literature regarding the use of silver nitrate for matricectomy. Our aim is to describe the effectiveness of silver nitrate for matrix cauterization after partial onychectomy. METHODS A prospective observational study was performed on patients with ingrown toenails stage 2-3 who underwent partial onychectomy with silver nitrate chemical matricectomy during 2018-2019 in our institution. All patients were evaluated in the outpatient clinic on the 7th and 30th post-operative day and a telephone evaluation was performed every 6 months after the surgical procedure to date. RESULTS One hundred and twenty-three patients, who underwent 231 partial onychectomies with silver nitrate chemical matricectomy were included, with a median follow-up of 21 months (interquartile range, 12-29). The procedure had an effectiveness of 95.3%, with only 11 recurrences (4.7%) reported so far on follow-up. Postoperative infections were observed in 4 patients (1.7%). Adverse effects, such as pain and postoperative drainage, were irrelevant in most patients. CONCLUSIONS Silver nitrate matricectomy after partial onychectomy is an effective and safe alternative for the treatment of ingrown toenail in children, with scarce postoperative morbidity and low recurrence rate.
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21
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The Potential of Antibiotics and Nanomaterial Combinations as Therapeutic Strategies in the Management of Multidrug-Resistant Infections: A Review. Int J Mol Sci 2022; 23:ijms232315038. [PMID: 36499363 PMCID: PMC9736695 DOI: 10.3390/ijms232315038] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/16/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022] Open
Abstract
Antibiotic resistance has become a major public health concern around the world. This is exacerbated by the non-discovery of novel drugs, the development of resistance mechanisms in most of the clinical isolates of bacteria, as well as recurring infections, hindering disease treatment efficacy. In vitro data has shown that antibiotic combinations can be effective when microorganisms are resistant to individual drugs. Recently, advances in the direction of combination therapy for the treatment of multidrug-resistant (MDR) bacterial infections have embraced antibiotic combinations and the use of nanoparticles conjugated with antibiotics. Nanoparticles (NPs) can penetrate the cellular membrane of disease-causing organisms and obstruct essential molecular pathways, showing unique antibacterial mechanisms. Combined with the optimal drugs, NPs have established synergy and may assist in regulating the general threat of emergent bacterial resistance. This review comprises a general overview of antibiotic combinations strategies for the treatment of microbial infections. The potential of antibiotic combinations with NPs as new entrants in the antimicrobial therapy domain is discussed.
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22
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Kreutz M, Kreutz C, Kanzow P, Tauböck TT, Burrer P, Noll C, Bader O, Rohland B, Wiegand A, Rizk M. Effect of Bioactive and Antimicrobial Nanoparticles on Properties and Applicability of Dental Adhesives. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3862. [PMID: 36364638 PMCID: PMC9694625 DOI: 10.3390/nano12213862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
The aim of the study was to examine the applicability of bioactive and antibacterial nanoparticles to an experimental adhesive. The adhesive (60 wt% BisGMA, 15 wt% TEGDMA, 25 wt% HEMA) was mixed with combinations of 5 wt% methacryl-functionalized polyhedral oligomeric silsesquioxane (MA-POSS) and one kind of bioactive/antibacterial nanoparticles: 1 wt% core-shell silica-silver nanoparticle (SiO2@Ag), 1 wt% bioactive glass with bismuth (BAG-Bi) or 1 wt% calcium phosphate (CAP). Pure adhesive served as control. The physicochemical (degree of conversion (DC), linear shrinkage (LS), shear and complex viscosity, water sorption (WS), sol fraction (SF)), biological (antimicrobial effect) and bioactive (mineral precipitation) properties were investigated. DC and LS remained unchanged. The combination of BAG-Bi/MA-POSS resulted in a significantly increased WS and SF compared to control. In addition, the combination of CAP/MA-POSS slightly increased the shear viscosity of the adhesive. The addition of the nanoparticles did not influence the antimicrobial effects compared to the pure adhesive. Improved mineral inducing capacity could be detected in all nanoparticle combinations. The combination of bioactive and/or antibacterial nanoparticles showed improved mineral inducing capacity, but no antibacterial properties. The material properties were not or only slightly affected.
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Affiliation(s)
- Marietta Kreutz
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Christian Kreutz
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Philipp Kanzow
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Tobias T. Tauböck
- Department of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland
| | - Phoebe Burrer
- Department of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland
| | - Christine Noll
- Institute of Medical Microbiology and Virology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Oliver Bader
- Institute of Medical Microbiology and Virology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Bianca Rohland
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Annette Wiegand
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Marta Rizk
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, 37075 Göttingen, Germany
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23
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Chug MK, Brisbois EJ. Smartphone compatible nitric oxide releasing insert to prevent catheter-associated infections. J Control Release 2022; 349:227-240. [PMID: 35777483 PMCID: PMC9680949 DOI: 10.1016/j.jconrel.2022.06.043] [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: 03/01/2022] [Revised: 06/13/2022] [Accepted: 06/24/2022] [Indexed: 10/17/2022]
Abstract
A large fraction of nosocomial infections is associated with medical devices that are deemed life-threatening in immunocompromised patients. Medical device-related infections are a result of bacterial colonization and biofilm formation on the device surface that affects >1 million people annually in the US alone. Over the past few years, light-based antimicrobial therapy has made substantial advances in tackling microbial colonization. Taking the advantage of light and antibacterial properties of nitric oxide (NO), for the first time, a robust, biocompatible, anti-infective approach to design a universal disposable catheter disinfection insert (DCDI) that can both prevent bacterial adhesion and disinfect indwelling catheters in situ is reported. The DCDI is engineered using a photo-initiated NO donor molecule, incorporated in polymer tubing that is mounted on a side glow fiber optic connected to an LED light source. Using a smartphone application, the NO release from DCDI is photoactivated via white light resulting in tunable physiological levels of NO for up to 24 h. When challenged with microorganisms S. aureus and E. coli, the NO-releasing DCDI statistically reduced microbial attachment by >99% versus the controls with just 4 h of exposure. The DCDI also eradicated ∼97% of pre-colonized bacteria on the CVC catheter model demonstrating the ability to exterminate an established catheter infection. The smart, mobile-operated novel universal antibacterial device can be used to both prevent catheter infections or can be inserted within an infected catheter to eradicate the bacteria without complex surgical interventions. The therapeutic levels of NO generated via illuminating fiber optics can be the next-generation biocompatible solution for catheter-related bloodstream infections.
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Affiliation(s)
- Manjyot Kaur Chug
- School of Chemical, Materials & Biomedical Engineering, University of Georgia, Athens, GA, USA
| | - Elizabeth J Brisbois
- School of Chemical, Materials & Biomedical Engineering, University of Georgia, Athens, GA, USA.
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24
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Pan L, Li C, Wang Z, Yang L, Zhang L. Preparation of an antibacterial dressing for simultaneous delivery of polyhexamethylene biguanide and platelet-rich plasma, and evaluation of the dressing's ability to promote infected skin repair. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Zhao Y, Zhang W, Van Devener B, Bunch TD, Zhou A, Isom SC. In-situ characterization of porcine fibroblasts in response to silver ions by Raman spectroscopy and liquid scanning transmission electron microscopy. Talanta 2022; 246:123522. [DOI: 10.1016/j.talanta.2022.123522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/12/2022] [Accepted: 05/01/2022] [Indexed: 11/16/2022]
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26
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Nanomaterials-Based Combinatorial Therapy as a Strategy to Combat Antibiotic Resistance. Antibiotics (Basel) 2022; 11:antibiotics11060794. [PMID: 35740200 PMCID: PMC9220075 DOI: 10.3390/antibiotics11060794] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 01/10/2023] Open
Abstract
Since the discovery of antibiotics, humanity has been able to cope with the battle against bacterial infections. However, the inappropriate use of antibiotics, the lack of innovation in therapeutic agents, and other factors have allowed the emergence of new bacterial strains resistant to multiple antibiotic treatments, causing a crisis in the health sector. Furthermore, the World Health Organization has listed a series of pathogens (ESKAPE group) that have acquired new and varied resistance to different antibiotics families. Therefore, the scientific community has prioritized designing and developing novel treatments to combat these ESKAPE pathogens and other emergent multidrug-resistant bacteria. One of the solutions is the use of combinatorial therapies. Combinatorial therapies seek to enhance the effects of individual treatments at lower doses, bringing the advantage of being, in most cases, much less harmful to patients. Among the new developments in combinatorial therapies, nanomaterials have gained significant interest. Some of the most promising nanotherapeutics include polymers, inorganic nanoparticles, and antimicrobial peptides due to their bactericidal and nanocarrier properties. Therefore, this review focuses on discussing the state-of-the-art of the most significant advances and concludes with a perspective on the future developments of nanotherapeutic combinatorial treatments that target bacterial infections.
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27
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Kokila N, Mahesh B, Roopa K, Daruka Prasad B, Raj K, Manjula S, Mruthunjaya K, Ramu R. Thunbergia mysorensis mediated nano silver oxide for enhanced antibacterial, antioxidant, anticancer potential and in vitro hemolysis evaluation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132455] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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28
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Moreira SS, Camargo MCD, Caetano R, Alves MR, Itria A, Pereira TV, Lopes LC. Efficacy and costs of nanocrystalline silver dressings versus 1% silver sulfadiazine dressings to treat burns in adults in the outpatient setting: A randomized clinical trial. Burns 2022; 48:568-576. [PMID: 34688520 DOI: 10.1016/j.burns.2021.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/01/2021] [Accepted: 05/24/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Nanocrystalline silver dressings can reduce the number of changes, facilitating burn wound management. However, the evidence regarding their efficacy and cost-consequences compared to well-established treatments, such as 1% silver sulfadiazine, is still scarce. OBJECTIVE To determine the efficacy, safety, and costs of nanocrystalline silver dressings compared to 1% silver sulfadiazine dressings to treat adult patients with burns. STUDY DESIGN AND SETTING Randomized, single-center, single-blind trial conducted at a referral hospital in São Paulo, Brazil. METHODS 100 adult patients were randomized 1:1 to nanocrystalline silver (n = 50) or 1% silver sulfadiazine (n = 50). The primary outcome was the proportion of participants with complete re-epithelization at day 15 after randomization. Secondary outcomes included the number of dressing changes, direct medical costs (in international dollars, I$), pain intensity, the incidence of infections, number of patients undergoing surgery, and adverse events. RESULTS On day 15, the proportion of patients who reached the primary outcome did not differ significantly between participants treated with nanocrystalline silver dressings (24 [48%]) and those treated with 1% silver sulfadiazine dressings (26 [52%]); risk difference of -4.0 percentage points (95% confidence interval [CI], -17 to 9; P = 0.56). The number of patients undergoing surgical intervention was similar between groups (6% vs. 6%), and no local or serious adverse events were reported. The mean (standard deviation, SD) number of dressing changes in the nanocrystalline silver group was 4.1 (2.3), and the corresponding estimate in the 1% silver sulfadiazine group was 9.6 (6.7); mean difference of -5.56 (95% CI), -7.57 to -3.55, P < 0.001). Treatment with nanocrystalline silver dressing incurred significant cost reductions in medical materials, human resources, and administrative labor. However, the mean total cost with nanocrystalline silver dressing was higher compared to 1% silver sulfadiazine dressings: I$496.37 (445.90) vs. I$274.73 (182.76); mean difference = 221.63 (95% CI, 89.04 to 354.23, P = 0.001). The main driver of higher mean total costs among nanocrystalline silver-treated participants was the purchase cost of the dressings, representing 79.3% of the total cost in the nanocrystalline silver group but only 15.2% in the 1% silver sulfadiazine group. CONCLUSION We found no evidence of a difference between nanocrystalline silver and 1% silver sulfadiazine dressings regarding efficacy and safety outcomes. Nanocrystalline silver dressings were associated with an increase in the total costs, but they could result in important savings for an institution (less changes of dressings, reducing human resources burden), especially if acquisition costs can be decreased. Additional cost-effectiveness studies are warranted. TRIAL REGISTRATION NUMBER NCT02108535.
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Affiliation(s)
| | | | - Rosângela Caetano
- Department of Planning and Public Policy, Institute of Social Medicine, UERJ, Brazil.
| | - Maíra Ramos Alves
- Pharmaceutical Sciences Graduate Course, University of Sorocaba, UNISO, Brazil.
| | - Alexander Itria
- Department of Economics, Federal University of São Carlos, UFSCAR, Brazil.
| | - Tiago Veiga Pereira
- Applied Health Research Centre, St. Michael's Hospital, University of Toronto, Canada; Department of Health Sciences, University of Leicester, Leicester, United Kingdom.
| | - Luciane Cruz Lopes
- Pharmaceutical Sciences Graduate Course, University of Sorocaba, UNISO, Brazil.
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29
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Singh R, Sharma R, Chauhan M, Sharma D. Structurally identified curcumin-Ag/ZnO nanocomposite having antibacterial effect: an investigation. INTERNATIONAL NANO LETTERS 2022. [DOI: 10.1007/s40089-022-00366-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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An Overview Regarding Microbial Aspects of Production and Applications of Bacterial Cellulose. MATERIALS 2022; 15:ma15020676. [PMID: 35057394 PMCID: PMC8779708 DOI: 10.3390/ma15020676] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 12/22/2021] [Accepted: 01/11/2022] [Indexed: 02/01/2023]
Abstract
Cellulose is the most widely used biopolymer, accounting for about 1.5 trillion tons of annual production on Earth. Bacterial cellulose (BC) is a form produced by different species of bacteria, representing a purified form of cellulose. The structure of bacterial cellulose consists of glucose monomers that give it excellent properties for different medical applications (unique nanostructure, high water holding capacity, high degree of polymerization, high mechanical strength, and high crystallinity). These properties differ depending on the cellulose-producing bacteria. The most discussed topic is related to the use of bacterial cellulose as a versatile biopolymer for wound dressing applications. The aim of this review is to present the microbial aspects of BC production and potential applications in development of value-added products, especially for biomedical applications.
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31
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Hasan A, Varna D, Chakraborty I, Angaridis PA, Raptis RG. Synthesis, structure and antibacterial properties of a mononuclear Ag(I) complex, [Ag(OBz)(PTA)2] (OBz = benzoate, PTA = 1, 3, 5-triaza-7-phospadamantane). RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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32
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Chen CC, Chen YY, Yeh CC, Hsu CW, Yu SJ, Hsu CH, Wei TC, Ho SN, Tsai PC, Song YD, Yen HJ, Chen XA, Young JJ, Chuang CC, Dou HY. Alginate-Capped Silver Nanoparticles as a Potent Anti-mycobacterial Agent Against Mycobacterium tuberculosis. Front Pharmacol 2021; 12:746496. [PMID: 34899300 PMCID: PMC8660078 DOI: 10.3389/fphar.2021.746496] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 10/27/2021] [Indexed: 11/13/2022] Open
Abstract
Tuberculosis (TB) is a leading cause of death from a single infectious agent, Mycobacterium tuberculosis (Mtb). Although progress has been made in TB control, still about 10 million people worldwide develop TB annually and 1.5 million die of the disease. The rapid emergence of aggressive, drug-resistant strains and latent infections have caused TB to remain a global health challenge. TB treatments are lengthy and their side effects lead to poor patient compliance, which in turn has contributed to the drug resistance and exacerbated the TB epidemic. The relatively low output of newly approved antibiotics has spurred research interest toward alternative antibacterial molecules such as silver nanoparticles (AgNPs). In the present study, we use the natural biopolymer alginate to serve as a stabilizer and/or reductant to green synthesize AgNPs, which improves their biocompatibility and avoids the use of toxic chemicals. The average size of the alginate-capped AgNPs (ALG-AgNPs) was characterized as nanoscale, and the particles were round in shape. Drug susceptibility tests showed that these ALG-AgNPs are effective against both drug-resistant Mtb strains and dormant Mtb. A bacterial cell-wall permeability assay showed that the anti-mycobacterial action of ALG-AgNPs is mediated through an increase in cell-wall permeability. Notably, the anti-mycobacterial potential of ALG-AgNPs was effective in both zebrafish and mouse TB animal models in vivo. These results suggest that ALG-AgNPs could provide a new therapeutic option to overcome the difficulties of current TB treatments.
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Affiliation(s)
- Cheng-Cheung Chen
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan.,Graduate Institute of Medical Science, National Defense Medical Center, Taipei, Taiwan
| | - Yih-Yuan Chen
- Department of Biochemical Science and Technology, National Chiayi University, Chia-Yi, Taiwan
| | - Chang-Ching Yeh
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Chia-Wei Hsu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Shang-Jie Yu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Chih-Hao Hsu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Ting-Chun Wei
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Sin-Ni Ho
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Pei-Chu Tsai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Yung-Deng Song
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Hui-Ju Yen
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan.,School of Pharmacy, National Defense Medical Center, Taipei, Taiwan
| | - Xin-An Chen
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Jenn-Jong Young
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Chuan-Chung Chuang
- School of Dentistry and Graduate Institute of Dental Science, National Defense Medical Center, Taipei, Taiwan.,Department of Dentistry, Tri-Service General Hospital, Taipei, Taiwan
| | - Horng-Yunn Dou
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan.,Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
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33
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Ferreira Oliveira AE, Pereira AC, Campos de Resende MA, Ferreira LF. Fabrication of a Simple and Cheap Screen‐Printed Silver/Silver Chloride (Ag/AgCl) Quasi‐Reference Electrode. ELECTROANAL 2021. [DOI: 10.1002/elan.202100521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ana Elisa Ferreira Oliveira
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei, UFSJ São João del-Rei, MG CEP 36307-352 Brazil
| | - Arnaldo César Pereira
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei, UFSJ São João del-Rei, MG CEP 36307-352 Brazil
| | | | - Lucas Franco Ferreira
- Laboratório de Eletroquímica e Nanotecnologia Aplicada, Instituto de Ciência e Tecnologia Universidade Federal dos Vales do Jequitinhonha e Mucuri Rodovia MGT 367, Km 583, 5000 Alto da Jacuba, Diamantina MG 39100-000 Brazil
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34
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Viswanathan S, Palaniyandi T, Shanmugam R, M T, Rajendran BK, Sivaji A. Biomedical potential of silver nanoparticles capped with active ingredients of Hypnea valentiae, red algae species. PARTICULATE SCIENCE AND TECHNOLOGY 2021. [DOI: 10.1080/02726351.2021.1992059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sandhiya Viswanathan
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Thirunavukkarasu Palaniyandi
- Department of Biotechnology, Dr. M.G.R Educational and Research Institute, Deemed to be University, Chennai, India
| | - Rajeshkumar Shanmugam
- Department of Pharmacology, Saveetha Dental College and Hospital, SIMATS, Chennai, India
| | - Tharani M
- Department of Pharmacology, Saveetha Dental College and Hospital, SIMATS, Chennai, India
| | | | - Asha Sivaji
- Department of Biochemistry, DKM College for Women, Vellore, India
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35
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Upadhyay G, Tiwari N, Maurya H, Upadhyay J, Joshi R, Ansari MN. In vivo wound-healing and antioxidant activity of aqueous extract of Roylea elegans leaves against physically induced burn model in Wistar albino rats. 3 Biotech 2021; 11:442. [PMID: 34631343 DOI: 10.1007/s13205-021-02993-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/10/2021] [Indexed: 01/04/2023] Open
Abstract
Roylea elegans Wall. ex Benth. is a lemon-scented hoary shrub belonging to the mint family (Lamiaceae). Traditionally, a local tribe of the Himalayan region uses leaves for scabs and skin infections. The aerial parts and leaves are widely used to cure various skin ailments. The plant is well known for two furanoid diterpenes, royeleganin and royelegafuran. The aqueous extract of Roylea elegans (AERE) leaves was investigated for wound-healing effects in rats using a physically induced burn model by assessing different parameters. Animals were divided into four groups (six rats in each group). Group I animals were considered as disease control and topically given base cream. Group II was considered as standard control and treated topically with Framycetin sulphate cream (1% w/w). Group III and IV animals were treated topically with creams containing 5 or 10% of AERE, respectively. Several parameters such as wound contraction rate, epithelialization period, and enzymatic and non-enzymatic antioxidant markers along with pro- and anti-inflammatory cytokines were studied followed by histopathological studies. The animals treated with AERE cream exhibited significant declination in the wound area and increased collagen content as compared to the disease control group. The results showed that the lower dose (5%) of AERE produced a significant decrease in the epithelialization period, wound contraction rate, and collagen content. Increased levels of cytokine production may be one of the mechanisms in accelerating the wound-healing process. The study established the traditional claim as an antioxidant and wound-healing potential of Roylea elegans by promoting the accelerated wound-healing activity against the physically induced burn model.
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Affiliation(s)
- Gaurav Upadhyay
- MIT College of Pharmacy, MIT Group of Institutions, Ram Ganga Vihar, Phase- II, MDA, Moradabad, 244001 Uttar Pradesh India
| | - Nidhi Tiwari
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organisation, Delhi, 110054 India
| | - Harikesh Maurya
- M.G.B. Rajat College of Pharmacy and Management, Baskhari, Gohila, Ambedkar Nagar, India
| | - Jyoti Upadhyay
- School of Health Sciences, Department of Pharmaceutical Sciences Energy Acre Campus, University of Petroleum and Energy Studies, Bidholi, Dehradun, 248007 Uttarakhand India
| | - Rohit Joshi
- Division of Biotechnology, CSIR-Institute of Himalayan Bioresource Technology, Palmpur, 176061 India
| | - Mohd Nazam Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Alkharj, 11942 Saudi Arabia
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36
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Betts HD, Neville SL, McDevitt CA, Sumby CJ, Harris HH. The biochemical fate of Ag + ions in Staphylococcus aureus, Escherichia coli, and biological media. J Inorg Biochem 2021; 225:111598. [PMID: 34517168 DOI: 10.1016/j.jinorgbio.2021.111598] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/03/2021] [Accepted: 08/28/2021] [Indexed: 01/16/2023]
Abstract
Silver is commonly included in a range of household and medical items to provide bactericidal action. Despite this, the chemical fate of the metal in both mammalian and bacterial systems remains poorly understood. Here, we applied a metallomics approach using X-ray absorption spectroscopy (XAS) and size-exclusion chromatography hyphenated with inductively coupled plasma mass spectrometry (SEC-ICP-MS) to advance our understanding of the biochemical fate of silver ions in bacterial culture and cells, and the chemistry associated with these interactions. When silver ions were added to lysogeny broth, silver was exclusively associated with moderately-sized species (~30 kDa) and bound by thiolate ligands. In two representative bacterial pathogens cultured in lysogeny broth including sub-lethal concentrations of ionic silver, silver was found in cells to be predominantly coordinated by thiolate species. The silver biomacromolecule-binding profile in Staphylococcus aureus and Escherichia coli was complex, with silver bound by a range of species spanning from 20 kDa to >1220 kDa. In bacterial cells, silver was nonuniformly colocalised with copper-bound proteins, suggesting that cellular copper processing may, in part, confuse silver for nutrient copper. Notably, in the treated cells, silver was not detected bound to low molecular weight compounds such as glutathione or bacillithiol.
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Affiliation(s)
- Harley D Betts
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Stephanie L Neville
- The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Victoria 3000, Australia
| | - Christopher A McDevitt
- The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Victoria 3000, Australia
| | - Christopher J Sumby
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Hugh H Harris
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia,.
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37
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Exploring antibiotics as ligands in metal–organic and hydrogen bonding frameworks: Our novel approach towards enhanced antimicrobial activity (mini-review). Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120474] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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38
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Allawadhi P, Singh V, Khurana A, Khurana I, Allwadhi S, Kumar P, Banothu AK, Thalugula S, Barani PJ, Naik RR, Bharani KK. Silver nanoparticle based multifunctional approach for combating COVID-19. SENSORS INTERNATIONAL 2021; 2:100101. [PMID: 34766057 PMCID: PMC8169222 DOI: 10.1016/j.sintl.2021.100101] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/14/2021] [Accepted: 05/15/2021] [Indexed: 12/14/2022] Open
Abstract
COVID-19 is a highly contagious and widespread disease that has strained the global healthcare system to the hilt. Silver nanoparticles (AgNPs) are well known for their potent antimicrobial, antiviral, immunomodulatory and biosensing properties. AgNPs have been found to be potential antiviral agent that act against many deadly viruses and is presumed to be effective against COVID-19. AgNPs can generate free radicals and reactive oxygen species (ROS) leading to apoptosis mediated cell death thereby inhibiting viral infection. The shape and size of AgNPs play an important role in its biomedical applications as alterations may result in variable biological interaction and activity. Herein, we propose that AgNPs can be utilized for effective management of the ongoing COVID-19 pandemic by highlighting the current status of AgNPs in the fight against COVID-19.
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Affiliation(s)
- Prince Allawadhi
- Department of Pharmacy, Vaish Institute of Pharmaceutical Education and Research (VIPER), Pandit Bhagwat Dayal Sharma University of Health Sciences (Pt. B. D. S. UHS), Rohtak - 124001, Haryana, India
| | - Vishakha Singh
- Department of Biotechnology, Indian Institute of Technology (IIT) Roorkee, Roorkee - 247667, Uttarakhand, India
| | - Amit Khurana
- Centre for Biomedical Engineering (CBME), Indian Institute of Technology (IIT) Delhi, Hauz Khas, New Delhi - 110016, India
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Rajendranagar, Hyderabad - 500030, PVNRTVU, Telangana, India
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Warangal - 506166, PVNRTVU, Telangana, India
| | - Isha Khurana
- Department of Pharmaceutical Chemistry, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh - 160014, India
| | - Sachin Allwadhi
- Department of Computer Science and Engineering, University Institute of Engineering and Technology (UIET), Maharshi Dayanand University (MDU), Rohtak - 124001, Haryana, India
| | - Pawan Kumar
- Department of Radiation Oncology, Regional Cancer Centre, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (Pt. B. D. S. PGIMS), Rohtak - 124001, Haryana, India
| | - Anil Kumar Banothu
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Rajendranagar, Hyderabad - 500030, PVNRTVU, Telangana, India
- Department of Aquatic Animal Health Management, College of Fishery Science, Pebbair, Wanaparthy - 509104, PVNRTVU, Telangana, India
| | - Sunitha Thalugula
- Department of Pharmacology, University College of Pharmaceutical Sciences (UCPS), Kakatiya University, Warangal - 506009, Telangana, India
| | - Percy Jasmine Barani
- Department of Chemistry, Wesley Degree College for Women, Osmania University, Secunderabad - 500025, Telangana, India
| | | | - Kala Kumar Bharani
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Warangal - 506166, PVNRTVU, Telangana, India
- Department of Aquatic Animal Health Management, College of Fishery Science, Pebbair, Wanaparthy - 509104, PVNRTVU, Telangana, India
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Mannix-Fisher E, McLean S. The antimicrobial activity of silver acetate against Acinetobacter baumannii in a Galleria mellonella infection model. PeerJ 2021; 9:e11196. [PMID: 33981496 PMCID: PMC8071075 DOI: 10.7717/peerj.11196] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/09/2021] [Indexed: 11/24/2022] Open
Abstract
Background The increasing prevalence of bacterial infections that are resistant to antibiotic treatment has caused the scientific and medical communities to look for alternate remedies aimed at prevention and treatment. In addition to researching novel antimicrobials, there has also been much interest in revisiting some of the earliest therapies used by man. One such antimicrobial is silver; its use stretches back to the ancient Greeks but interest in its medicinal properties has increased in recent years due to the rise in antibiotic resistance. Currently antimicrobial silver is found in everything from lunch boxes to medical device implants. Though much is claimed about the antimicrobial efficacy of silver salts the research in this area is mixed. Methods Herein we investigated the efficacy of silver acetate against a carbapenem resistant strain of Acinetobacter baumannii to determine the in vitro activity of this silver salt against a World Health Organisation designated category I critical pathogen. Furthermore, we use the Galleria mellonella larvae model to assess toxicity of the compound and its efficacy in treating infections in a live host. Results We found that silver acetate can be delivered safely to Galleria at medically relevant and antimicrobial levels without detriment to the larvae and that administration of silver acetate to an infection model significantly improved survival. This demonstrates the selective toxicity of silver acetate for bacterial pathogens but also highlights the need for administration of well-defined doses of the antimicrobial to provide an efficacious treatment.
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Affiliation(s)
- Eden Mannix-Fisher
- School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Samantha McLean
- School of Science and Technology, Nottingham Trent University, Nottingham, UK
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40
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Sánchez SV, Navarro N, Catalán-Figueroa J, Morales JO. Nanoparticles as Potential Novel Therapies for Urinary Tract Infections. Front Cell Infect Microbiol 2021; 11:656496. [PMID: 33954121 PMCID: PMC8089393 DOI: 10.3389/fcimb.2021.656496] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 03/23/2021] [Indexed: 12/21/2022] Open
Abstract
Urinary tract infection (UTI) is one of the most common reasons for antibiotic treatment. Nevertheless, uropathogens are steadily becoming resistant to currently available therapies. In this context, nanotechnology emerges as an innovative and promising approach among diverse strategies currently under development. In this review we deeply discuss different nanoparticles (NPs) used in UTI treatment, including organic NPs, nanodiamonds, chemical and green synthesized inorganic NPs, and NPs made of composite materials. In addition, we compare the effects of different NPs against uropathogens in vivo and in vitro and discuss their potential impact the in the near future.
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Affiliation(s)
- Sofía V Sánchez
- Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, University of Chile, Santiago, Chile.,Center of New Drugs for Hypertension (CENDHY), Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
| | - Nicolás Navarro
- Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, University of Chile, Santiago, Chile.,Center of New Drugs for Hypertension (CENDHY), Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
| | - Johanna Catalán-Figueroa
- Departamento Farmacología, Facultad de Ciencias Químicas, Instituto de Farmacología experimental de Córdoba (IFEC-CONICET), Universidad Nacional de Córdoba, Córdoba, Argentina.,Facultad de Medicina, Escuela de Química y Farmacia, Universidad Católica del Maule, Talca, Chile
| | - Javier O Morales
- Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, University of Chile, Santiago, Chile.,Center of New Drugs for Hypertension (CENDHY), Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
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41
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Hill JP, Shrestha RG, Song J, Ji Q, Ariga K, Shrestha LK. Monitoring the Release of Silver from a Supramolecular Fullerene C 60-AgNO 3 Nanomaterial. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210028] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jonathan P. Hill
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Rekha Goswami Shrestha
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Jingwen Song
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Qingmin Ji
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing 210094, P. R. China
| | - Katsuhiko Ariga
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Lok Kumar Shrestha
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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42
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Hurd T, Woodmansey EJ, Watkins HMA. A retrospective review of the use of a nanocrystalline silver dressing in the management of open chronic wounds in the community. Int Wound J 2021; 18:753-762. [PMID: 33660375 PMCID: PMC8613393 DOI: 10.1111/iwj.13576] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 12/17/2022] Open
Abstract
As part of an infection management protocol, antimicrobial dressings offer an appropriate, cost-effective choice for the management of localised bioburden in chronic wounds. The choice of antimicrobial can impact significantly not only on the treatment outcomes and cost but also on the safety and well-being of the patient. This retrospective study investigates these outcomes comparing health care records of 2572 patients with open chronic wounds, who were treated either with an Integrated Care Wound Bundle (ICB) including nanocrystalline silver (NCS) dressings (n = 330) or without NCS dressings and not on a ICB (n = 2242) in the community from March 2016 to March 2018. Wounds treated in the NCS dressing treatment bundle had a mean healing time of 10.46 weeks, vs 25.49 weeks for the non-ICB treated wounds. In addition, the average interval time between dressing changes was in favour of the NCS dressing treatment bundle (3.98 vs 1.87 days), contributing to a substantial reduction in mean treatment labour costs ($1251 vs $6488). The use of a NCS dressing demonstrated improved efficacy and cost effectiveness of labour required for chronic wound management; highlighting the importance of choosing an effective antimicrobial dressing as part of an infection management protocol.
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Affiliation(s)
- Theresa Hurd
- Nursing Practice Solutions, Stevensville, Ontario, Canada
| | - Emma J Woodmansey
- Smith+Nephew, Global Clinical and Medical Affairs, Kingston upon Hull, UK
| | - Hilary M A Watkins
- Smith+Nephew, Global Clinical and Medical Affairs, Kingston upon Hull, UK
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43
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Synthesis, Spectroscopy, Single-Crystal Structure Analysis and Antibacterial Activity of Two Novel Complexes of Silver(I) with Miconazole Drug. Int J Mol Sci 2021; 22:ijms22041510. [PMID: 33546211 PMCID: PMC7919260 DOI: 10.3390/ijms22041510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 01/30/2021] [Accepted: 01/30/2021] [Indexed: 12/25/2022] Open
Abstract
In a previous article, we reported on the higher toxicity of silver(I) complexes of miconazole [Ag(MCZ)2NO3 (1)] and [Ag(MCZ)2ClO4 (2)] in HepG2 tumor cells compared to the corresponding salts of silver, miconazole and cisplatin. Here, we present the synthesis of two silver(I) complexes of miconazole containing two new counter ions in the form of Ag(MCZ)2X (MCZ = 1-[2-(2,4-dichlorobenzyloxy)-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole]; X = BF4− (3), SbF6− (4)). The novel silver(I) complexes were characterized by elemental analysis, 1H NMR, 13C NMR and infrared (IR) spectroscopy, electrospray ionization (ESI)-MS spectrometry and X-ray-crystallography. In the present study, the antimicrobial activity of all obtained silver(I) complexes of miconazole against six strains of Gram-positive bacteria, five strains of Gram-negative bacteria and yeasts was evaluated. The results were compared with those of a silver sulfadiazine drug, the corresponding silver salts and the free ligand. Silver(I) complexes exhibited significant activity against Gram-positive bacteria, which was much better than that of silver sulfadiazine and silver salts. The highest antimicrobial activity was observed for the complex containing the nitrate counter ion. All Ag(I) complexes of miconazole resulted in much better inhibition of yeast growth than silver sulfadiazine, silver salts and miconazole. Moreover, the synthesized silver(I) complexes showed good or moderate activity against Gram-negative bacteria compared to the free ligand.
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44
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Malá Z, Žárská L, Bajgar R, Bogdanová K, Kolář M, Panáček A, Binder S, Kolářová H. The application of antimicrobial photodynamic inactivation on methicillin-resistant S. aureus and ESBL-producing K. pneumoniae using porphyrin photosensitizer in combination with silver nanoparticles. Photodiagnosis Photodyn Ther 2020; 33:102140. [PMID: 33307229 DOI: 10.1016/j.pdpdt.2020.102140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 11/10/2020] [Accepted: 12/04/2020] [Indexed: 12/12/2022]
Abstract
As resistance of bacterial strains to antibiotics is a major problem, there is a need to look for alternative treatments. One option is antimicrobial photodynamic inactivation (aPDI). The pathogenic cells are targeted by a nontoxic photosensitizer while the surrounding healthy tissue is relatively unaffected. The photosensitizer is activated by light of t appropriate wavelength resulting in the generation of reactive oxygen species that are cytotoxic for the pathogens. In this work, the photosensitizer TMPyP and silver nanoparticles (AgNPs) were investigated for their synergistic antibacterial effect. We tested these two substances on two bacterial strains, methicillin-resistant Staphylococcus aureus 4591 (MRSA) and extended-spectrum beta-lactamases-producing Klebsiella pneumoniae 2486 (ESBL-KP), to compare their effectiveness. The bacteria were first incubated with TMPyP for 45 min or 5 h, then irradiated with a LED source with the total fluence of 10 or 20 J/cm2 and then placed in a microbiological growth medium supplemented with AgNPs. To accomplish the synergistic effect, the optimal combination of TMPyP and AgNPs was estimated as 1.56-25 μM for TMPyP and 3.38 mg/l for AgNPs in case of MRSA and 1.56-50 μM for TMPyP and 3.38 mg/l for AgNPs in case of ESBL-KP at 45 min incubation with TMPyP and fluence of 10 J/cm2. Longer incubation and/or longer irradiation led to a decrease in the maximum values of the photosensitizer concentration to produce the synergistic effect. From this work it can be concluded that the combination of antimicrobial photodynamic inactivation with a treatment including silver nanoparticles could be a promising approach to treat bacterial infection.
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Affiliation(s)
- Zuzana Malá
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University in Olomouc, Czech Republic.
| | - Ludmila Žárská
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University in Olomouc, Czech Republic.
| | - Robert Bajgar
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University in Olomouc, Czech Republic.
| | - Kateřina Bogdanová
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacky University in Olomouc, Czech Republic.
| | - Milan Kolář
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacky University in Olomouc, Czech Republic.
| | - Aleš Panáček
- Department of Physical Chemistry, Regional Centre of Advanced Technologies, Faculty of Science, Palacky University in Olomouc, Czech Republic.
| | - Svatopluk Binder
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University in Olomouc, Czech Republic.
| | - Hana Kolářová
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University in Olomouc, Czech Republic; Department of Medical Biophysics, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University in Olomouc, Czech Republic.
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45
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Grolman JM, Singh M, Mooney DJ, Eriksson E, Nuutila K. Antibiotic-Containing Agarose Hydrogel for Wound and Burn Care. J Burn Care Res 2020; 40:900-906. [PMID: 31250003 DOI: 10.1093/jbcr/irz113] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Wound infections cause inflammation, tissue damage, and delayed healing that can lead to invasive infection and even death. The efficacy of systemic antibiotics is limited due to poor tissue penetration that is especially a problem in burn and blast wounds where the microcirculation is disrupted. Topical administration of antimicrobials is an attractive approach because it prevents infection and avoids systemic toxicity, while hydrogels are an appealing vehicle for topical drug delivery. They are easy to apply to the wound site by being injectable, the drug release properties can be controlled, and their many characteristics, such as biodegradation, mechanical strength, and chemical and biological response to stimuli can be tailored. Hydrogels also create a moist wound environment that is beneficial for healing. The purpose of this study was to formulate an agarose hydrogel that contains high concentrations of minocycline or gentamicin and study its characteristics. Subsequently, the minocycline agarose hydrogel was tested in a porcine burn model and its effect as a prophylactic treatment was studied. The results demonstrated that 0.5% agarose in water was the optimal concentration in terms of viscosity and pH. Bench testing at room temperature demonstrated that both antibiotics remained stable in the hydrogel for at least 7 days and both antibiotics demonstrated sustained release over the time of the experiment. The porcine burn experiment showed that prophylactic treatment with the agarose minocycline hydrogel decreased the burn depth and reduced the number of bacteria as efficiently as the commonly used silver sulfadiazine cream.
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Affiliation(s)
- Joshua M Grolman
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts.,John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts
| | - Mansher Singh
- Department of Plastic and Reconstructive Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - David J Mooney
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts.,John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts
| | | | - Kristo Nuutila
- Division of Plastic Surgery, Department of Surgery, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
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46
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Handayani E, Masithoh RF. A small-scale re-evaluation of the efficacy of silver sulfadiazine for burns. Br J Community Nurs 2020; 25:S34-S38. [PMID: 33300848 DOI: 10.12968/bjcn.2020.25.sup12.s34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Burns remain one of the most common injuries contributing to an increase in trauma incidence in hospitals, particularly in developing countries. Therefore, it is essential to identify the appropriate care for these wounds. Silver sulfadiazine has been widely used for the treatment of burns, but its efficacy has not been re-evaluated in recent years. Therefore, this small-scale study aimed at re-evaluating the use of silver sulfadiazine in patients with burns at a hospital in Magelang, Indonesia. A total of seven patients with second- and third-degree burns were involved and received silver sulfadiazine for 5 months (March to July 2020). Data on their wounds were collected three times and evaluated by using the Nursing Outcomes Classification (NOC) observation method. Wound outcomes were evaluated using on the basis of wound healing by secondary intention. Silver sulfadiazine was found to be effective; 85.7% of the wound area showed granulation tissue, and 75-100% of the wound area showed epithelialisation. However, patients complained of pain during silver sulfadiazine treatment. Therefore, additional nursing interventions seem to be needed to manage burns.
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Affiliation(s)
- Estrin Handayani
- both from the Department of Medical Surgical Nursing, Universitas Muhammadiyah Magelang, Indonesia
| | - Robiul Fitri Masithoh
- both from the Department of Medical Surgical Nursing, Universitas Muhammadiyah Magelang, Indonesia
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47
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Singer TG, Bray MA, Chan A, Ikeda S, Walters B, Fuller MY, Falco C. Chronic Ulcers and Malnutrition in an African Patient. Pediatrics 2020; 146:peds.2020-1717. [PMID: 33115794 PMCID: PMC8061712 DOI: 10.1542/peds.2020-1717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/10/2020] [Indexed: 11/24/2022] Open
Abstract
An 11-year-old girl with a congenitally malformed left hand, sickle cell trait, asthma, and history of appendicitis was transferred from Zambia for evaluation and treatment of widespread suppurative and ulcerative skin lesions that typically appeared after trauma to her skin. The ulcers first presented 3 years earlier but had markedly worsened in the 9 months before transfer, spreading circumferentially on her extremities and abdomen at the site of an appendectomy. They were painful and did not resolve with multiple courses of intravenous antibiotics and close management by a pediatric infectious disease specialist working for a nongovernmental organization (NGO) in her home country. Per NGO records, she had previously been average weight-for-age. On presentation after international transfer, she was severely malnourished, with lesions covering ∼35% of her body. In initial workup, leukocytosis of 21 × 103 cells per μL (79% neutrophils), hemoglobin of 6.1 g/dL, and mean corpuscular volume of 66 fL were found. Iron studies revealed an iron level of 18 μg/dL, ferritin level of 55 ng/mL, total iron binding capacity of 222 μg/dL, and transferrin saturation of 8%. Inflammatory markers were elevated, C-reactive protein was 20.1 mg/dL, and the erythrocyte sedimentation rate was 131 mm/h. A chest computed tomography scan revealed bilateral pulmonary nodules, the largest in her left upper lobe measuring 2.4 × 2.0 × 1.9 cm. Our panel of experts reviews the evaluation and treatment of this patient with extensive suppurative and ulcerative skin lesions and the factors considered in offering charity care to international patients.
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Affiliation(s)
- Timothy G. Singer
- Global Child Health Residency, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX USA
| | - Monica A. Bray
- Pediatric Rheumatology, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX USA
| | - Audrey Chan
- Pediatric Dermatology, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX USA
| | - Saki Ikeda
- Pediatric Infectious Disease, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX USA
| | - Brittany Walters
- International and Destination Medicine, Texas Children’s Hospital, Houston, TX USA
| | - Maren Y. Fuller
- Pathology, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX USA
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Riaz M, Altaf M, Ayaz M, Sherkheli MA, Islam A. Antibacterial and antioxidant potential of biosynthesized silver nanoparticles using aqueous root extract of Angilica glauca. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1835977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Muhammad Riaz
- SA–Centre for Interdisciplinary Research in Basic Science (SA-CIRBS), Faculty of Basic & Applied Sciences, International Islamic University, Islamabad, Pakistan
| | - Muhammad Altaf
- Department of Chemistry, University of AJK, Muzaffarabad, Pakistan
| | - Muhammad Ayaz
- Department of Chemistry, Quaid-i-Azam University, Islamabad
| | - Muhammad Azhar Sherkheli
- Department of Pharmaceutical Sciences, Abbottabad University of Science and Technology, Havelian, Pakistan
| | - Arshad Islam
- SA–Centre for Interdisciplinary Research in Basic Science (SA-CIRBS), Faculty of Basic & Applied Sciences, International Islamic University, Islamabad, Pakistan
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Zhou X, Zhou X, Yan R, Shi X, Du Y, Chen Y, Yu Y, Fan D, Zhang Y. Co-effects of C/Ag dual ion implantation on enhancing antibacterial ability and biocompatibility of silicone rubber. ACTA ACUST UNITED AC 2020; 15:065003. [PMID: 32503006 DOI: 10.1088/1748-605x/ab99d3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Although silicone implants are the most popular choice around the world for breast augmentation, reconstruction, and revision, due to the poor antibacterial properties and limited biocompatibility of silicone rubber (SR), one of the major complications, capsule contracture, is a lingering problem. To overcome the two main shortcomings, a dual ion implantation technique was applied to modify the surface of SR with the basic skeleton element of organic matter, carbon (C) and the broad-spectrum bactericide, silver (Ag). We present surface characterization, toxicological effects, and evaluation of the mechanical, antibacterial and biocompatible properties of C and Ag co-implanted SR (C/Ag-SRs). After ion implantation, surface roughness and tensile strength of these new materials increased. Biotoxicity was fully assessed by in vitro experiments on human fibroblasts and in vivo experiments on rats, showing that the low-Ag groups met safety standards. Both the anti-bacterial adhesion and bactericidal abilities of C/Ag-SRs were superior to those of SR, which had few antibacterial activities, especially against Staphylococcus epidermidis. With respect to biocompatibility, the adhesion of fibroblasts was promoted, while their proliferation was moderately inhibited on ion-implanted surfaces. After subcutaneous implantation in rats for 7, 30, 90 and 180 d, the capsular thickness around C/Ag-SRs was significantly lower than that around the SR. Additionally, there was no difference in the inflammatory reaction after 7 d of retention in vivo between C/Ag-SRs and SR. The results demonstrate that C/Ag-SRs are desirable shell materials for breast implants.
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Affiliation(s)
- Xuan Zhou
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, People's Republic of China. These authors contributed equally to this work
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50
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Multiple Compounds Secreted by Pseudomonas aeruginosa Increase the Tolerance of Staphylococcus aureus to the Antimicrobial Metals Copper and Silver. mSystems 2020; 5:5/5/e00746-20. [PMID: 32900873 PMCID: PMC7483513 DOI: 10.1128/msystems.00746-20] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Alternative antimicrobials, such as metals, are one of the methods currently used to help mitigate antibiotic resistance. Metal-based antimicrobials such as copper and silver are used currently both to prevent and to treat infections. Although the efficacy of these antimicrobials has been determined in single-species culture, bacteria rarely exist in a single-species group in the environment. Both Pseudomonas aeruginosa and Staphylococcus aureus are often found associated with each other in severe chronic infections displaying increased virulence and antibiotic tolerance. In this study, we determined that multiple compounds secreted by P. aeruginosa are able to increase the tolerance of S. aureus to both copper and silver. This work demonstrates the expansive chemical communication occurring in polymicrobial infections between bacteria. Metal-based antimicrobials have been used for thousands of years to treat and prevent bacterial infections. Currently, both silver and copper are used in health care and industry to prevent and treat the spread of harmful bacteria. However, like most antimicrobial agents, their efficacy against polymicrobial infections has not been fully elucidated. Coinfection with Pseudomonas aeruginosa and Staphylococcus aureus and the resulting interactions have been implicated in higher virulence, antibiotic resistance, and increased chronic infections. Here, the influence of secreted compounds from P. aeruginosa on metal antimicrobial tolerance in S. aureus was examined. This study determined that multiple compounds from P. aeruginosa increase the tolerance of S. aureus to copper and/or silver when cultured in simulated wound fluid. The presence of these secreted compounds from P. aeruginosa during exposure of S. aureus to copper or silver increased the MIC from 500 μM to 2,000 μM for copper and 16 to 63 μM for silver. The contribution of specific compounds to S. aureus tolerance was determined using gene deletion and disruption mutants, and metabolite analysis. Compounds identified as potential contributors were then individually added to S. aureus during metal exposure. Copper tolerance in S. aureus was found to be increased by amino acids and dihydroaeruginoate (Dha) secreted by P. aeruginosa. The silver tolerance provided to S. aureus was influenced only by two amino acids, serine and threonine, as well as the Pseudomonas quinolone signal (PQS) molecules from P. aeruginosa. IMPORTANCE Alternative antimicrobials, such as metals, are one of the methods currently used to help mitigate antibiotic resistance. Metal-based antimicrobials such as copper and silver are used currently both to prevent and to treat infections. Although the efficacy of these antimicrobials has been determined in single-species culture, bacteria rarely exist in a single-species group in the environment. Both Pseudomonas aeruginosa and Staphylococcus aureus are often found associated with each other in severe chronic infections displaying increased virulence and antibiotic tolerance. In this study, we determined that multiple compounds secreted by P. aeruginosa are able to increase the tolerance of S. aureus to both copper and silver. This work demonstrates the expansive chemical communication occurring in polymicrobial infections between bacteria.
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