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102
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Wang C, Gao X, Chen Z, Chen Y, Chen H. Preparation, Characterization and Application of Polysaccharide-Based Metallic Nanoparticles: A Review. Polymers (Basel) 2017; 9:E689. [PMID: 30965987 PMCID: PMC6418682 DOI: 10.3390/polym9120689] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/03/2017] [Accepted: 12/05/2017] [Indexed: 12/25/2022] Open
Abstract
Polysaccharides are natural biopolymers that have been recognized to be the most promising hosts for the synthesis of metallic nanoparticles (MNPs) because of their outstanding biocompatible and biodegradable properties. Polysaccharides are diverse in size and molecular chains, making them suitable for the reduction and stabilization of MNPs. Considerable research has been directed toward investigating polysaccharide-based metallic nanoparticles (PMNPs) through host⁻guest strategy. In this review, approaches of preparation, including top-down and bottom-up approaches, are presented and compared. Different characterization techniques such as scanning electron microscopy, transmission electron microscopy, dynamic light scattering, UV-visible spectroscopy, Fourier-transform infrared spectroscopy, X-ray diffraction and small-angle X-ray scattering are discussed in detail. Besides, the applications of PMNPs in the field of wound healing, targeted delivery, biosensing, catalysis and agents with antimicrobial, antiviral and anticancer capabilities are specifically highlighted. The controversial toxicological effects of PMNPs are also discussed. This review can provide significant insights into the utilization of polysaccharides as the hosts to synthesize MPNs and facilitate their further development in synthesis approaches, characterization techniques as well as potential applications.
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Affiliation(s)
- Cong Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Xudong Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Zhongqin Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Yue Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Haixia Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
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103
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Mali KK, Dhawale SC, Dias RJ. Synthesis and characterization of hydrogel films of carboxymethyl tamarind gum using citric acid. Int J Biol Macromol 2017; 105:463-470. [DOI: 10.1016/j.ijbiomac.2017.07.058] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/12/2017] [Accepted: 07/09/2017] [Indexed: 11/29/2022]
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104
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Mosier-Boss PA. Review on SERS of Bacteria. BIOSENSORS-BASEL 2017; 7:bios7040051. [PMID: 29137201 PMCID: PMC5746774 DOI: 10.3390/bios7040051] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/06/2017] [Accepted: 11/09/2017] [Indexed: 12/16/2022]
Abstract
Surface enhanced Raman spectroscopy (SERS) has been widely used for chemical detection. Moreover, the inherent richness of the spectral data has made SERS attractive for use in detecting biological materials, including bacteria. This review discusses methods that have been used to obtain SERS spectra of bacteria. The kinds of SERS substrates employed to obtain SERS spectra are discussed as well as how bacteria interact with silver and gold nanoparticles. The roll of capping agents on Ag/Au NPs in obtaining SERS spectra is examined as well as the interpretation of the spectral data.
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105
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Salaheldin HI, Almalki MHK, Osman GEH. Green synthesis of silver nanoparticles using bovine skin gelatin and its antibacterial effect on clinical bacterial isolates. IET Nanobiotechnol 2017; 11:420-425. [PMID: 28530191 DOI: 10.1049/iet-nbt.2016.0126] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Nanoparticles are being increasingly used in day-to-day life. Therefore, concerns have been raised regarding their interactions with the surrounding environment. This study focused on a simple green method for synthesizing silver nanoparticles (Ag-NPs) in an autoclave at 15 psi (103 kPa) and 121°C. An aqueous solution of AgNO3 as a precursor of Ag-NPs and gelatin (type B) reducing and/or stabilizing (capping) agent were used. The effect of various AgNO3 concentrations of certain gelatin concentration and various gelatin concentrations at constant AgNO3 concentration, and autoclaving time, was studied. UV-Vis spectra ascribed that the presence of localized surface plasmon resonance (SPR) of the synthesized Ag-NPs. TEM images and the selected area of electron diffraction confirmed, the formation of Ag-NPs with a diameter of approximately 5 ±0.35 nm. Furthermore, FT-IR revealed that a gelatin polymer matrix stabilized the synthesized Ag-NPs. The Well diffusion assay was used to test the effect of Ag-NPs on six clinical bacterial isolates, where Gram positive bacteria were more susceptible to Ag-NPs than Gram negative bacteria. Therefore, Ag-NPs capped by gelatin have remarkable potential effect as an antibacterial agent, and they not only have various medical applications but can also be used in biological, pharmaceutical and industrial fields.
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Affiliation(s)
- Hosam I Salaheldin
- Department of Physics, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, PO Box 715, Kingdom of Saudi Arabia.
| | - Meshal H K Almalki
- Department of Biology, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, PO Box 715, Kingdom of Saudi Arabia
| | - Gamal E H Osman
- Agricultural Genetic Engineering Research Institute (AGERI), Giza 12619, Egypt
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106
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Khatami M, Heli H, Mohammadzadeh Jahani P, Azizi H, Lima Nobre MA. Copper/copper oxide nanoparticles synthesis using Stachys lavandulifolia and its antibacterial activity. IET Nanobiotechnol 2017; 11:709-713. [PMCID: PMC8676411 DOI: 10.1049/iet-nbt.2016.0189] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 03/05/2017] [Accepted: 03/22/2017] [Indexed: 08/11/2023] Open
Abstract
Nanoparticles of copper/cuprous oxide (Cu/Cu2 O) were successfully synthesised by a green chemistry route. The synthesis process was carried out using an extract of Stachys lavandulifolia as both reducing and capping agents with a facile procedure. The nanoparticles were characterised by different techniques including X‐ray diffraction, indicating that the synthesised sample comprised both copper and cuprous oxide entity. The nanoparticles had a mean size of 80 nm and represented an impressive bactericidal effect on Pseudomonas aeruginosa .
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Affiliation(s)
- Mehrdad Khatami
- Department of MedicineBam University of Medical SciencesBamIran
- Nanomedicine and Nanobiology Research CenterShiraz University of Medical SciencesShirazIran
- Research Center for Tropical and Infectious DiseasesKerman University of Medical SciencesKermanIran
- Leishmaniasis Research CenterKerman University of Medical SciencesKermanIran
| | - Hossein Heli
- Nanomedicine and Nanobiology Research CenterShiraz University of Medical SciencesShirazIran
| | - Peyman Mohammadzadeh Jahani
- Department of MedicineBam University of Medical SciencesBamIran
- Research Center for Tropical and Infectious DiseasesKerman University of Medical SciencesKermanIran
| | - Hakim Azizi
- Department of MedicineZabol University of Medical SciencesZabolIran
| | - Marcos Augusto Lima Nobre
- Fac de Ciências e Tecnologia‐FCTUniversidade Estadual Paulista‐UNESPPresidente PrudenteSP19060‐900Brazil
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107
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Richter K, Facal P, Thomas N, Vandecandelaere I, Ramezanpour M, Cooksley C, Prestidge CA, Coenye T, Wormald PJ, Vreugde S. Taking the Silver Bullet Colloidal Silver Particles for the Topical Treatment of Biofilm-Related Infections. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21631-21638. [PMID: 28598149 DOI: 10.1021/acsami.7b03672] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Biofilms are aggregates of bacteria residing in a self-assembled matrix, which protects these sessile cells against external stress, including antibiotic therapies. In light of emerging multidrug-resistant bacteria, alternative strategies to antibiotics are emerging. The present study evaluated the activity of colloidal silver nanoparticles (AgNPs) of different shapes against biofilms formed by Staphylococcus aureus (SA), methicillin-resistant SA (MRSA), and Pseudomonas aeruginosa (PA). Colloidal quasi-spherical, cubic, and star-shaped AgNPs were synthesized, and their cytotoxicity on macrophages (THP-1) and bronchial epithelial cells (Nuli-1) was analyzed by the lactate dehydrogenase assay. The antibiofilm activity was assessed in vitro by the resazurin assay and in an in vivo infection model in Caenorhabditis elegans. Cubic and star-shaped AgNPs induced cytotoxicity, while quasi-spherical AgNPs were not toxic. Quasi-spherical AgNPs showed substantial antibiofilm activity in vitro with 96% (±2%), 97% (±1%), and 98% (±1%) biofilm killing of SA, MRSA, and PA, respectively, while significantly reducing mortality of infected nematodes. The in vivo antibiofilm activity was linked to the accumulation of AgNPs in the intestinal tract of C. elegans as observed by 3D X-ray tomography. Quasi-spherical AgNPs were physically stable in suspension for over 6 months with no observed loss in antibiofilm activity. While toxicity and stability limited the utilization of cubic and star-shaped AgNPs, quasi-spherical AgNPs could be rapidly synthesized, were stable and nontoxic, and showed substantial in vitro and in vivo activity against clinically relevant biofilms. Quasi-spherical AgNPs hold potential as pharmacotherapy, for example, as topical treatment for biofilm-related infections.
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Affiliation(s)
- Katharina Richter
- Department of Surgery, Otolaryngology Head and Neck Surgery, Basil Hetzel Institute for Translational Health Research, The University of Adelaide , Adelaide, South Australia Australia
| | - Paula Facal
- Future Industries Institute, University of South Australia , Mawson Lakes, South Australia Australia
| | - Nicky Thomas
- School of Pharmacy and Medical Sciences, University of South Australia , Adelaide, South Australia Australia
- Adelaide Biofilm Test Facility, Sansom Institute for Health Research, University of South Australia , Adelaide, South Australia Australia
| | | | - Mahnaz Ramezanpour
- Department of Surgery, Otolaryngology Head and Neck Surgery, Basil Hetzel Institute for Translational Health Research, The University of Adelaide , Adelaide, South Australia Australia
| | - Clare Cooksley
- Department of Surgery, Otolaryngology Head and Neck Surgery, Basil Hetzel Institute for Translational Health Research, The University of Adelaide , Adelaide, South Australia Australia
| | - Clive A Prestidge
- School of Pharmacy and Medical Sciences, University of South Australia , Adelaide, South Australia Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Adelaide, South Australia Australia
| | - Tom Coenye
- Laboratory of Pharmaceutical Microbiology, Ghent University , Gent, Belgium
| | - Peter-John Wormald
- Department of Surgery, Otolaryngology Head and Neck Surgery, Basil Hetzel Institute for Translational Health Research, The University of Adelaide , Adelaide, South Australia Australia
| | - Sarah Vreugde
- Department of Surgery, Otolaryngology Head and Neck Surgery, Basil Hetzel Institute for Translational Health Research, The University of Adelaide , Adelaide, South Australia Australia
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108
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Yu K, Lu F, Li Q, Chen H, Lu B, Liu J, Li Z, Dai F, Wu D, Lan G. In situ assembly of Ag nanoparticles (AgNPs) on porous silkworm cocoon-based wound film: enhanced antimicrobial and wound healing activity. Sci Rep 2017; 7:2107. [PMID: 28522813 PMCID: PMC5437089 DOI: 10.1038/s41598-017-02270-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 04/10/2017] [Indexed: 11/22/2022] Open
Abstract
Preventing wound infection and retaining an appropriate level of moisture around wounds represent the most critical issues in wound treatment. Towards these ends, special focus has been placed on Bombyx mori cocoons because the protective function of the silkworm cocoon resembles the manner in which the skin protects the human body. We have designed a facile technique to develop a novel silkworm cocoon-based wound film (SCWF) wound dressing utilizing a CaCl2-ethanol-H2O solution. To improve the anti-bacterial performance of SCWF, we have incorporated the ability of silk sericin to act as a reducing agent for the conversion of Ag+ to Ag, yielding nanoparticles (AgNPs) linked together by peptide bonds of silkworm cocoon wound film (SCWF-AgNPs). SCWF-AgNP dressing exhibited excellent biocompatibility, anti-bacterial performance, and good extensibility. Furthermore, in vivo experiments indicated that SCWF-AgNP dressing was able to significantly accelerate the healing rate of infected wounds in New Zealand White rabbits and histological examination revealed that it aided in the successful reconstruction of intact and thickened epidermis during 14 days of healing of impaired wound tissue. These results demonstrate that the present approach might shed new light on the design of anti-bacterial materials such as SCWF-AgNPs with promising applications in wound dressing.
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Affiliation(s)
- Kun Yu
- College of Textile and Garments, Southwest University, Chongqing, 400715, China
| | - Fei Lu
- College of Textile and Garments, Southwest University, Chongqing, 400715, China.,Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, Chongqing, 400715, China
| | - Qing Li
- College of Textile and Garments, Southwest University, Chongqing, 400715, China
| | - Honglei Chen
- College of Textile and Garments, Southwest University, Chongqing, 400715, China
| | - Bitao Lu
- College of Textile and Garments, Southwest University, Chongqing, 400715, China
| | - Jiawei Liu
- College of Textile and Garments, Southwest University, Chongqing, 400715, China
| | - Zhiquan Li
- The Ninth People's Hospital of Chongqing, Chongqing, 400700, China
| | - Fangying Dai
- College of Textile and Garments, Southwest University, Chongqing, 400715, China.,Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, Chongqing, 400715, China
| | - Dayang Wu
- College of Textile and Garments, Southwest University, Chongqing, 400715, China.,Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, Chongqing, 400715, China
| | - Guangqian Lan
- College of Textile and Garments, Southwest University, Chongqing, 400715, China. .,Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, Chongqing, 400715, China.
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109
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Ma Y, Liu C, Qu D, Chen Y, Huang M, Liu Y. Antibacterial evaluation of sliver nanoparticles synthesized by polysaccharides from Astragalus membranaceus roots. Biomed Pharmacother 2017; 89:351-357. [DOI: 10.1016/j.biopha.2017.02.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 01/12/2017] [Accepted: 02/07/2017] [Indexed: 01/03/2023] Open
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110
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Francesko A, Cano Fossas M, Petkova P, Fernandes MM, Mendoza E, Tzanov T. Sonochemical synthesis and stabilization of concentrated antimicrobial silver-chitosan nanoparticle dispersions. J Appl Polym Sci 2017. [DOI: 10.1002/app.45136] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Antonio Francesko
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering; Universitat Politècnica de Catalunya; Spain
| | - Marta Cano Fossas
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering; Universitat Politècnica de Catalunya; Spain
| | - Petya Petkova
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering; Universitat Politècnica de Catalunya; Spain
| | - Margarida M. Fernandes
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering; Universitat Politècnica de Catalunya; Spain
| | - Ernest Mendoza
- Grup de Nanomaterials Aplicats. Centre de Recerca en Nanoenginyeria; Universitat Politècnica de Catalunya; Spain
| | - Tzanko Tzanov
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering; Universitat Politècnica de Catalunya; Spain
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111
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Gao Y, Hassanbhai AM, Lim J, Wang L, Xu C. Fabrication of a silver octahedral nanoparticle-containing polycaprolactone nanocomposite for antibacterial bone scaffolds. RSC Adv 2017. [DOI: 10.1039/c6ra26063b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ag octahedral nanoparticle-containing PCL nanocomposite scaffolds exhibit successful osteogenic differentiation of stem cells and localized antibacterial effects.
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Affiliation(s)
- Yu Gao
- Key Laboratory for Organic Electronics and Information Displays
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | | | - Jing Lim
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637457
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637457
- NTU-Northwestern Institute for Nanomedicine
- Nanyang Technological University
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112
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Kalaiyarasan T, Bharti VK, Chaurasia OP. One pot green preparation of Seabuckthorn silver nanoparticles (SBT@AgNPs) featuring high stability and longevity, antibacterial, antioxidant potential: a nano disinfectant future perspective. RSC Adv 2017. [DOI: 10.1039/c7ra10262c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In recent years antimicrobial resistance (AMR) threatens the effective prevention and treatment of an ever-increasing range of infections caused by bacteria, parasites, viruses, fungi and development of effective therapeutics is a major challenge to the scientific community.
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Affiliation(s)
| | - Vijay K. Bharti
- Defence Institute of High Altitude Research (DIHAR)
- DRDO
- India
| | - O. P. Chaurasia
- Defence Institute of High Altitude Research (DIHAR)
- DRDO
- India
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113
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Yang JL, Li YF, Liang X, Guo XP, Ding DW, Zhang D, Zhou S, Bao WY, Bellou N, Dobretsov S. Silver Nanoparticles Impact Biofilm Communities and Mussel Settlement. Sci Rep 2016; 6:37406. [PMID: 27869180 PMCID: PMC5116650 DOI: 10.1038/srep37406] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 10/28/2016] [Indexed: 02/07/2023] Open
Abstract
Silver nanoparticles (AgNPs) demonstrating good antimicrobial activity are widely used in many fields. However, the impact of AgNPs on the community structures of marine biofilms that drive biogeochemical cycling processes and the recruitment of marine invertebrate larvae remains unknown. Here, we employed MiSeq sequencing technology to evaluate the bacterial communities of 28-day-old marine biofilms formed on glass, polydimethylsiloxane (PDMS), and PDMS filled with AgNPs and subsequently tested the influence of these marine biofilms on plantigrade settlement by the mussel Mytilus coruscus. AgNP-filled PDMS significantly reduced the dry weight and bacterial density of biofilms compared with the glass and PDMS controls. AgNP incorporation impacted bacterial communities by reducing the relative abundance of Flavobacteriaceae (phylum: Bacteroidetes) and increasing the relative abundance of Vibrionaceae (phylum: Proteobacteria) in 28-day-old biofilms compared to PDMS. The settlement rate of M. coruscus on 28-day-old biofilms developed on AgNPs was lower by >30% compared to settlement on control biofilms. Thus, the incorporation of AgNPs influences biofilm bacterial communities in the marine environment and subsequently inhibits mussel settlement.
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Affiliation(s)
- Jin-Long Yang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, China.,Marine Ecology Research Center, The First Institute of Oceanography, State Oceanic Administration, Qingdao, China.,Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo, China
| | - Yi-Feng Li
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, China
| | - Xiao Liang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, China
| | - Xing-Pan Guo
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, China
| | - De-Wen Ding
- Marine Ecology Research Center, The First Institute of Oceanography, State Oceanic Administration, Qingdao, China
| | - Demin Zhang
- Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo, China
| | - Shuxue Zhou
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Advanced Coatings Research Center of Ministry of Education of China, Fudan University, Shanghai, China
| | - Wei-Yang Bao
- Institute of Marine Science and Technology, Yangzhou University, Yangzhou, China
| | - Nikoleta Bellou
- Hellenic Centre for Marine Research, Institute of Oceanography, Athens, Greece
| | - Sergey Dobretsov
- Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman.,Center of Excellence in Marine Biotechnology, Sultan Qaboos University, Muscat, Oman
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114
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Santana RC, Zafalon LF, Brandão HDM, A.F. Junior G, Pilon LE, B. Junior W, Giglioti R, Mosqueira VCF. Uso de antimicrobiano nanoparticulado para o tratamento da mastite subclínica de ovelhas de corte no período seco. PESQUISA VETERINARIA BRASILEIRA 2016. [DOI: 10.1590/s0100-736x2016000900006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Resumo: A inflamação da glândula mamária é uma das principais causas de prejuízo na ovinocultura. Este estudo teve como objetivo investigar as taxas de cura do tratamento da mastite subclínica após infusão intramamária de princípio ativo antimicrobiano no momento da secagem, em formulações convencional e nanoparticulada. Os rebanhos estavam localizados em São Carlos, São Paulo, Brasil. Analisou-se um total de 584 glândulas mamárias de 307 ovelhas de aptidão para produção de carne. Triagem prévia dos casos subclínicos de mastite foi efetuada por meio do California Mastitis Test (CMT) e/ou da contagem de células somáticas (CCS). Análises microbiológicas foram realizadas para confirmação da etiologia infecciosa. As glândulas mamárias com mastite subclínica foram distribuídas em três grupos: G1 (Controle; glândulas mamárias que não receberam tratamento antimicrobiano); G2 (glândulas mamárias em que foi administrado 100 mg de cloxacilina benzatina em estrutura convencional) e G3 (glândulas mamárias em que foi administrado 50 mg de cloxacilina benzatina em estrutura nanoencapsulada). O tratamento aplicado ao G3 mostrou-se mais eficiente (P=0,047) na cura de glândulas mamárias com mastite subclínica. O uso da cloxacilina nanoencapsulada no momento da secagem de ovelhas de corte auxilia no controle da mastite subclínica infecciosa e reduz os prejuízos consequentes.
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