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Karava A, Lazaridou M, Nanaki S, Michailidou G, Christodoulou E, Kostoglou M, Iatrou H, Bikiaris DN. Chitosan Derivatives with Mucoadhesive and Antimicrobial Properties for Simultaneous Nanoencapsulation and Extended Ocular Release Formulations of Dexamethasone and Chloramphenicol Drugs. Pharmaceutics 2020; 12:pharmaceutics12060594. [PMID: 32604758 PMCID: PMC7356116 DOI: 10.3390/pharmaceutics12060594] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 01/31/2023] Open
Abstract
The aim of this work was to evaluate the effectiveness of neat chitosan (CS) and its derivatives with 2-acrylamido-2-methyl-1-propanesulfonic acid (AAMPS) and [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (MEDSP) as appropriate nanocarriers for the simultaneous ocular administration of dexamethasone sodium phosphate (DxP) and chloramphenicol (CHL). The derivatives CS-AAMPS and CS-MEDSP have been synthesized by free-radical polymerization and their structure has been proved by Fourier-Transformed Infrared Spectroscopy (FT-IR) spectroscopy. Both derivatives exhibited low cytotoxicity, enhanced mucoadhesive properties and antimicrobial activity against Staphylococcus aureus (S.aureus) and Escherichia coli (E. coli). Encapsulation was performed via ionic crosslinking gelation using sodium tripolyphosphate (TPP) as the crosslinking agent. Dynamic light scattering measurements (DLS) showed that the prepared nanoparticles had bimodal distribution and sizes ranging from 50–200 nm and 300–800 nm. Drugs were encapsulated in their crystalline (CHL) or amorphous (DexSP) form inside nanoparticles and their release rate was dependent on the used polymer. The CHL dissolution rate was substantially enhanced compared to the neat drug and the release time was extended up to 7 days. The release rate of DexSP was much faster than that of CHL and was prolonged up to 3 days. Drug release modeling unveiled that diffusion is the main release mechanism for both drugs. Both prepared derivatives and their drug-loaded nanoparticles could be used for extended and simultaneous ocular release formulations of DexSP and CHL drugs.
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Affiliation(s)
- Aikaterini Karava
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15771 Athens, Greece;
| | - Maria Lazaridou
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece; (M.L.); (S.N.); (G.M.); (E.C.)
| | - Stavroula Nanaki
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece; (M.L.); (S.N.); (G.M.); (E.C.)
| | - Georgia Michailidou
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece; (M.L.); (S.N.); (G.M.); (E.C.)
| | - Evi Christodoulou
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece; (M.L.); (S.N.); (G.M.); (E.C.)
| | - Margaritis Kostoglou
- Laboratory of Chemical and Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;
| | - Hermis Iatrou
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15771 Athens, Greece;
- Correspondence: (H.I.); (D.N.B.); Tel.: +30-210-7274056 (H.I.); +30-2310-997812 (D.N.B.)
| | - Dimitrios N. Bikiaris
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece; (M.L.); (S.N.); (G.M.); (E.C.)
- Correspondence: (H.I.); (D.N.B.); Tel.: +30-210-7274056 (H.I.); +30-2310-997812 (D.N.B.)
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In situ generated silica reinforced polyvinyl alcohol/liquefied chitin biodegradable films for food packaging. Carbohydr Polym 2020; 238:116182. [DOI: 10.1016/j.carbpol.2020.116182] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 03/13/2020] [Accepted: 03/14/2020] [Indexed: 12/14/2022]
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Huang M, Zhuang H, Zhao J, Wang J, Yan W, Zhang J. Differences in cellular damage induced by dielectric barrier discharge plasma between Salmonella Typhimurium and Staphylococcus aureus. Bioelectrochemistry 2020; 132:107445. [DOI: 10.1016/j.bioelechem.2019.107445] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 12/07/2019] [Accepted: 12/15/2019] [Indexed: 12/18/2022]
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Jøraholmen MW, Bhargava A, Julin K, Johannessen M, Škalko-Basnet N. The Antimicrobial Properties of Chitosan Can be Tailored by Formulation. Mar Drugs 2020; 18:md18020096. [PMID: 32023890 PMCID: PMC7074233 DOI: 10.3390/md18020096] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 12/20/2022] Open
Abstract
Topical administration of drugs into the vagina can provide local therapy of vaginal infections, preventing the possible systemic side effects of the drugs. The natural polysaccharide chitosan is known for its excellent mucoadhesive properties, safety profile, and antibacterial effects, and thus it can be utilized in improving localized vaginal therapy by prolonging the residence time of a drug at the vaginal site while acting as an antimicrobial in synergy. Therefore, we aimed to explore the potential of chitosan, namely chitosan-coated liposomes and chitosan hydrogel, as an excipient with intrinsic antimicrobial properties. Liposomes were prepared by the thin-film hydration method followed by vesicle size reduction by sonication to the desired size, approximately 200 nm, and coated with chitosan (0.01, 0.03, 0.1, and 0.3%, w/v, respectively). The mucoadhesive properties of chitosan-coated liposomes were determined through their binding efficiency to mucin compared to non-coated liposomes. Non-coated liposomal suspensions were incorporated in chitosan hydrogels forming the liposomes-in-hydrogel formulations, which were further assessed for their texture properties in the presence of biological fluid simulants. The antibacterial effect of chitosan-coated liposomes (0.03%, 0.1% and 0.3%, w/v) and chitosan hydrogels (0.1% and 0.3%, w/w) on Staphylococcus epidermidis and Staphylococcus aureus was successfully confirmed.
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Affiliation(s)
- May Wenche Jøraholmen
- Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø The Arctic University of Norway, Universitetsveien 57, 9037 Tromsø, Norway; (M.W.J.); (A.B.)
| | - Abhilasha Bhargava
- Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø The Arctic University of Norway, Universitetsveien 57, 9037 Tromsø, Norway; (M.W.J.); (A.B.)
| | - Kjersti Julin
- Research group for Host-Microbe Interaction, Department of Medical Biology, Faculty of Health Sciences, University of Tromsø The Arctic University of Norway, Sykehusveien 44, 9037 Tromsø, Norway; (K.J.); (M.J.)
| | - Mona Johannessen
- Research group for Host-Microbe Interaction, Department of Medical Biology, Faculty of Health Sciences, University of Tromsø The Arctic University of Norway, Sykehusveien 44, 9037 Tromsø, Norway; (K.J.); (M.J.)
| | - Nataša Škalko-Basnet
- Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø The Arctic University of Norway, Universitetsveien 57, 9037 Tromsø, Norway; (M.W.J.); (A.B.)
- Correspondence: ; Tel.: +47-7764-6640
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Riaz Rajoka MS, Mehwish HM, Wu Y, Zhao L, Arfat Y, Majeed K, Anwaar S. Chitin/chitosan derivatives and their interactions with microorganisms: a comprehensive review and future perspectives. Crit Rev Biotechnol 2020; 40:365-379. [PMID: 31948287 DOI: 10.1080/07388551.2020.1713719] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Chitosan, obtained as a result of the deacetylation of chitin, one of the most important naturally occurring polymers, has antimicrobial properties against fungi, and bacteria. It is also useful in other fields, including: food, biomedicine, biotechnology, agriculture, and the pharmaceutical industries. A literature survey shows that its antimicrobial activity depends upon several factors such as: the pH, temperature, molecular weight, ability to chelate metals, degree of deacetylation, source of chitosan, and the type of microorganism involved. This review will focus on the in vitro and in vivo antimicrobial properties of chitosan and its derivatives, along with a discussion on its mechanism of action during the treatment of infectious animal diseases, as well as its importance in food safety. We conclude with a summary of the challenges associated with the uses of chitosan and its derivatives.
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Affiliation(s)
- Muhammad Shahid Riaz Rajoka
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China.,Key Laboratory of Optoelectronic Devices and System of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, People's Republic of China
| | - Hafiza Mahreen Mehwish
- Department of Pharmacy, School of Medicine, Key Laboratory of Novel Health Care Product; Engineering Laboratory of Shenzhen Natural Small Molecules Innovative Drugs, Shenzhen University, Shenzhen, People's Republic of China
| | - Yiguang Wu
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China
| | - Liqing Zhao
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China
| | - Yasir Arfat
- Key Laboratory of Resource Biology and Biotechnology in Western China, College of Life Sciences, Ministry of Education, Northwest University, People's Republic of China
| | - Kashif Majeed
- The Department of Applied Chemistry School of Science, Northwestern Polytechnical University, X'ian, People's Republic of China
| | - Shoaib Anwaar
- School of Medicine, Institute of Biological Therapy, Shenzhen University, Shenzhen, People's Republic of China
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56
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Song J, Feng H, Wu M, Chen L, Xia W, Zhang W. Preparation and characterization of arginine-modified chitosan/hydroxypropyl methylcellose antibacterial film. Int J Biol Macromol 2019; 145:750-758. [PMID: 31857168 DOI: 10.1016/j.ijbiomac.2019.12.141] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 12/03/2019] [Accepted: 12/15/2019] [Indexed: 12/17/2022]
Abstract
Chitosan and its derivatives are widely used in medical, cosmetic and food fields. In this study, chitosan-N-arginine (CSA) was synthesized and characterized by Fourier-transform infrared (FT-IR), 1H NMR, gel permeation chromatography (GPC), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). A novel antibacterial composite film consisting of CSA, hydroxypropyl methylcellose (HPMC) and glycerol was then prepared. The transparent and homogeneous film presented good compatibility between CSA and HPMC, confirmed by SEM. The thickness of the film was about 44.8 μm and its moisture content was 23.0%. Antimicrobial evaluation of CSA/HPMC film showed 9.0 mm bacteriostatic diameter zone against E. coli and 10.5 mm one against S. aureus. The film exhibited cell biocompatibility and promoted proliferation with L929 cell cytotoxicity test. Both antibacterial and cytotoxic results showed that the CSA/HPMC film was a promising material for medication, cosmetics and food preservation applications.
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Affiliation(s)
- Jinxing Song
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Huafeng Feng
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Mengqi Wu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Linxiao Chen
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Wei Xia
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Wenqing Zhang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China.
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57
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Su Z, Han Q, Zhang F, Meng X, Liu B. Preparation, characterization and antibacterial properties of 6-deoxy-6-arginine modified chitosan. Carbohydr Polym 2019; 230:115635. [PMID: 31887858 DOI: 10.1016/j.carbpol.2019.115635] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 09/25/2019] [Accepted: 11/16/2019] [Indexed: 12/28/2022]
Abstract
In this study, 6-deoxy-6-arginine modified chitosan (DAC), was synthesized and characterized by Fourier Transform Infrared Spectroscopy (FTIR), 1H and 13C nuclear magnetic resonance (NMR), differential scanning calorimetry (DSC) and elemental analysis. The arginine was grafted onto C6 groups of chitosan. Antibacterial activity of DAC against gram-negative bacteria Escherichia coli (E. coli) and gram-positive bacteria Staphylococcus aureus (S. aureus) were investigated at concentration between 0.02 mg/mL and 10 mg/mL. Cell viability assessment was estimated in vitro with Caco-2 and L929 cells. Water solubility of DAC at different pH was also evaluated. The results showed that the minimum inhibitory concentration (MICs) of DAC against S. aureus and E. coli were 0.078 mg/mL and 0.312 mg/mL, respectively. The minimum bactericidal concentration (MBC) against S. aureus and E. coli was 0.625 mg/mL. The cytotoxicity of chitosan and DAC was not significantly different. It demonstrated that DAC might be a potential safe antibacterial agent.
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Affiliation(s)
- Zhiwei Su
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Qiming Han
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Fang Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Xianghong Meng
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Pilot National Laboratory for Marine Science and Technology, Qingdao 266235, China.
| | - Bingjie Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China.
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58
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Ouyang Q, Hou T, Li C, Hu Z, Liang L, Li S, Zhong Q, Li P. Construction of a composite sponge containing tilapia peptides and chitosan with improved hemostatic performance. Int J Biol Macromol 2019; 139:719-729. [DOI: 10.1016/j.ijbiomac.2019.07.163] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/02/2019] [Accepted: 07/25/2019] [Indexed: 01/14/2023]
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59
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Narayanaswamy VP, Duncan AP, LiPuma JJ, Wiesmann WP, Baker SM, Townsend SM. In Vitro Activity of a Novel Glycopolymer against Biofilms of Burkholderia cepacia Complex Cystic Fibrosis Clinical Isolates. Antimicrob Agents Chemother 2019; 63:e00498-19. [PMID: 30910901 PMCID: PMC6535541 DOI: 10.1128/aac.00498-19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 03/11/2019] [Indexed: 12/12/2022] Open
Abstract
Burkholderia cepacia complex (Bcc) lung infections in cystic fibrosis (CF) patients are often associated with a steady decline in lung function and death. The formation of biofilms and inherent multidrug resistance are virulence factors associated with Bcc infection and contribute to increased risk of mortality in CF patients. New therapeutic strategies targeting bacterial biofilms are anticipated to enhance antibiotic penetration and facilitate resolution of infection. Poly (acetyl, arginyl) glucosamine (PAAG) is a cationic glycopolymer therapeutic being developed to directly target biofilm integrity. In this study, 13 isolates from 7 species were examined, including Burkholderia multivorans, Burkholderia cenocepacia, Burkholderia gladioli, Burkholderia dolosa, Burkholderia vietnamiensis, and B. cepacia These isolates were selected for their resistance to standard clinical antibiotics and their ability to form biofilms in vitro Biofilm biomass was quantitated using static tissue culture plate (TCP) biofilm methods and a minimum biofilm eradication concentration (MBEC) assay. Confocal laser scanning microscopy (CLSM) visualized biofilm removal by PAAG during treatment. Both TCP and MBEC methods demonstrated a significant dose-dependent relationship with regard to biofilm removal by 50 to 200 μg/ml PAAG following a 1-h treatment (P < 0.01). A significant reduction in biofilm thickness was observed following a 10-min treatment of Bcc biofilms with PAAG compared to that with vehicle control (P < 0.001) in TCP, MBEC, and CLSM analyses. PAAG also rapidly permeabilizes bacteria within the first 10 min of treatment. Glycopolymers, such as PAAG, are a new class of large-molecule therapeutics that support the treatment of recalcitrant Bcc biofilm.
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Affiliation(s)
| | | | - John J LiPuma
- University of Michigan, Department of Pediatrics and Communicable Diseases, Ann Arbor, Michigan, USA
| | | | | | - Stacy M Townsend
- Townsend Bio-Pharm Consulting, Rancho Cucamonga, California, USA
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60
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Saito H, Sakakibara Y, Sakata A, Kurashige R, Murakami D, Kageshima H, Saito A, Miyazaki Y. Antibacterial activity of lysozyme-chitosan oligosaccharide conjugates (LYZOX) against Pseudomonas aeruginosa, Acinetobacter baumannii and Methicillin-resistant Staphylococcus aureus. PLoS One 2019; 14:e0217504. [PMID: 31136634 PMCID: PMC6538184 DOI: 10.1371/journal.pone.0217504] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 05/12/2019] [Indexed: 11/19/2022] Open
Abstract
The recent emergence of antibiotic-resistant bacteria requires the development of new antibiotics or new agents capable of enhancing antibiotic activity. This study evaluated the antibacterial activity of lysozyme-chitosan oligosaccharide conjugates (LYZOX) against Pseudomonas aeruginosa, Acinetobacter baumannii and methicillin-resistant Staphylococcus aureus (MRSA), which should resolve the problem of antibiotic-resistant bacteria. Bactericidal tests showed that LYZOX killed 50% more P. aeruginosa (NBRC 13275), A. baumannii and MRSA than the control treatment after 60 min. In addition, LYZOX was shown to inhibit the growth of P. aeruginosa (NBRC 13275 and PAO1), A. baumannii and MRSA better than its components. To elucidate the antibacterial mechanism of LYZOX, we performed cell membrane integrity assays, N-phenyl-1-naphthylamine assays, 2-nitrophenyl β-D-galactopyranoside assays and confocal laser scanning microscopy. These results showed that LYZOX affected bacterial cell walls and increased the permeability of the outer membrane and the plasma membrane. Furthermore, each type of bacteria treated with LYZOX was observed by electron microscopy. Electron micrographs revealed that these bacteria had the morphological features of both lysozyme-treated and chitosan oligosaccharide-treated bacteria and that LYZOX destroyed bacterial cell walls, which caused the release of intracellular contents from cells. An acquired drug resistance test revealed that these bacteria were not able to acquire resistance to LYZOX. The hemolytic toxicity test demonstrated the low hemolytic activity of LYZOX. In conclusion, LYZOX exhibited antibacterial activity and low drug resistance in the presence of P. aeruginosa, A. baumannii and MRSA and showed low hemolytic toxicity. LYZOX affected bacterial membranes, leading to membrane disruption and the release of intracellular contents and consequent bacterial cell death. LYZOX may serve as a novel candidate drug that could be used for the control of refractory infections.
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Affiliation(s)
- Hiroaki Saito
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yumi Sakakibara
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ayumi Sakata
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Rie Kurashige
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Daisuke Murakami
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | - Akira Saito
- Wako Filter Technology Co., Ltd, Tokyo, Japan
| | - Yasunari Miyazaki
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
- * E-mail:
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61
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Pan C, Qian J, Fan J, Guo H, Gou L, Yang H, Liang C. Preparation nanoparticle by ionic cross-linked emulsified chitosan and its antibacterial activity. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.02.039] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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62
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Fang S, Wang G, Xing R, Chen X, Liu S, Qin Y, Li K, Wang X, Li R, Li P. Synthesis of superabsorbent polymers based on chitosan derivative graft acrylic acid-co-acrylamide and its property testing. Int J Biol Macromol 2019; 132:575-584. [PMID: 30926491 DOI: 10.1016/j.ijbiomac.2019.03.176] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/27/2019] [Accepted: 03/25/2019] [Indexed: 01/30/2023]
Abstract
A new kind of eco-friendly superabsorbent polymer was successfully synthesized using (2-pyridyl) acetyl chitosan chloride (PACS), acrylic acid (AA) and acrylamide (AM) in aqueous solution by a free radical polymerization. The effect of different reaction conditions, such as the initiator content, crosslinker content and PACS content were investigated. And the water retention, salt tolerance and reuse ability were investigated too. The chemical structure and morphological characterizations of the superabsorbent polymer were investigated by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Thermogravimetric analysis (TGA) and Scanning electron microscope (SEM). The results showed that the novel superabsorbent polymer exhibits excellent water absorbency, which can absorb distilled water 615 g/g and 0.9% NaCl solution 44 g/g. At the same time, this product showed excellent water retention and reusability. The antibacterial properties of the superabsorbent polymers were tested too. The introduction of antibacterial groups also enhances antibacterial properties against Escherichia coli and Staphylococcus aureus. This kind of superabsorbent polymer has a broad application prospect.
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Affiliation(s)
- Shixin Fang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Qingdao University of Science and Technology, Qingdao 266071, China
| | - Guangjian Wang
- Qingdao University of Science and Technology, Qingdao 266071, China.
| | - Ronge Xing
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Xiaolin Chen
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Song Liu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Yukun Qin
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Kecheng Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Xueqin Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Rongfeng Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Pengcheng Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
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63
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Polyudova TV, Shagdarova BT, Korobov VP, Varlamov VP. Bacterial Adhesion and Biofilm Formation in the Presence of Chitosan and Its Derivatives. Microbiology (Reading) 2019. [DOI: 10.1134/s0026261719020085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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64
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Afjeh MEA, Pourahmad R, Akbari-Adergani B, Azin M. Use of Glucose Oxidase Immobilized on Magnetic Chitosan Nanoparticles in Probiotic Drinking Yogurt. Food Sci Anim Resour 2019; 39:73-83. [PMID: 30882076 PMCID: PMC6411245 DOI: 10.5851/kosfa.2019.e5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/10/2018] [Accepted: 12/29/2018] [Indexed: 12/02/2022] Open
Abstract
The aim of this study was to investigate the effect of glucose oxidase (GOX)
immobilized on magnetic chitosan nanoparticles (MCNP) on the viability of
probiotic bacteria and the physico-chemical properties of drinking yogurt.
Different concentrations (0, 250, and 500 mg/kg) of free and immobilized GOX
were used in probiotic drinking yogurt samples. The samples were stored at
4°C for 21 d. During storage, reduction of the number of probiotic
bacteria in the samples with enzyme was lower than the control sample (without
enzyme). The sample containing 500 mg/kg immobilized enzyme had the highest
number of Bifidobacterium lactis and Lactobacillus
acidophilus. The samples containing immobilized enzyme had lower
acidity than other samples. Moreover, moderate proteolytic activity and enough
contents of flavor compounds were observed in these samples. It can be concluded
that use of immobilized GOX is economically more feasible because of improving
the viability of probiotic bacteria and the physico-chemical characteristics of
drinking yogurt.
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Affiliation(s)
- Maryam Ein Ali Afjeh
- Department of Food Science and Technology, College of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin 3381774895, Iran
| | - Rezvan Pourahmad
- Department of Food Science and Technology, College of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin 3381774895, Iran
| | - Behrouz Akbari-Adergani
- Food and Drug Laboratory Research Center, Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran P.O. Box 11136-15911
| | - Mehrdad Azin
- Department of Biotechnology, Iranian Research Organization for Science and Technology, Tehran, Iran
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65
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Sakkos JK, Wackett LP, Aksan A. Enhancement of biocatalyst activity and protection against stressors using a microbial exoskeleton. Sci Rep 2019; 9:3158. [PMID: 30816335 PMCID: PMC6395662 DOI: 10.1038/s41598-019-40113-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 02/08/2019] [Indexed: 12/18/2022] Open
Abstract
Whole cell biocatalysts can perform numerous industrially-relevant chemical reactions. While they are less expensive than purified enzymes, whole cells suffer from inherent reaction rate limitations due to transport resistance imposed by the cell membrane. Furthermore, it is desirable to immobilize the biocatalysts to enable ease of separation from the reaction mixture. In this study, we used a layer-by-layer (LbL) self-assembly process to create a microbial exoskeleton which, simultaneously immobilized, protected, and enhanced the reactivity of a whole cell biocatalyst. As a proof of concept, we used Escherichia coli expressing homoprotocatechuate 2,3-dioxygenase (HPCD) as a model biocatalyst and coated it with up to ten alternating layers of poly(diallyldimethylammonium chloride) (PDADMAC) and silica. The microbial exoskeleton also protected the biocatalyst against a variety of external stressors including: desiccation, freeze/thaw, exposure to high temperatures, osmotic shock, as well as against enzymatic attack by lysozyme, and predation by protozoa. While we observed increased permeability of the outer membrane after exoskeleton deposition, this had a moderate effect on the reaction rate (up to two-fold enhancement). When the exoskeleton construction was followed by detergent treatment to permeabilize the cytoplasmic membrane, up to 15-fold enhancement in the reaction rate was reached. With the exoskeleton, we increased in the reaction rate constants as much as 21-fold by running the biocatalyst at elevated temperatures ranging from 40 °C to 60 °C, a supraphysiologic temperature range not accessible by unprotected bacteria.
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Affiliation(s)
- Jonathan K Sakkos
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Lawrence P Wackett
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, 55455, USA
- The BioTechnology Institute, University of Minnesota, St. Paul, MN, 55108, USA
| | - Alptekin Aksan
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455, USA.
- The BioTechnology Institute, University of Minnesota, St. Paul, MN, 55108, USA.
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Xiao F, Cao B, Wang C, Guo X, Li M, Xing D, Hu X. Pathogen-Specific Polymeric Antimicrobials with Significant Membrane Disruption and Enhanced Photodynamic Damage To Inhibit Highly Opportunistic Bacteria. ACS NANO 2019; 13:1511-1525. [PMID: 30632740 DOI: 10.1021/acsnano.8b07251] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Highly pathogenic Gram-negative bacteria and their drug resistance are a severe public health threat with high mortality. Gram-negative bacteria are hard to kill due to the complex cell envelopes with low permeability and extra defense mechanisms. It is challenging to treat them with current strategies, mainly including antibiotics, peptides, polymers, and some hybrid materials, which still face the issue of drug resistance, limited antibacterial selectivity, and severe side effects. Together with precise bacteria targeting, synergistic therapeutic modalities, including physical membrane damage and photodynamic eradication, are promising to combat Gram-negative bacteria. Herein, pathogen-specific polymeric antimicrobials were formulated from amphiphilic block copolymers, poly(butyl methacrylate)- b-poly(2-(dimethylamino) ethyl methacrylate- co-eosin)- b-ubiquicidin, PBMA- b-P(DMAEMA- co-EoS)-UBI, in which pathogen-targeting peptide ubiquicidin (UBI) was tethered in the hydrophilic chain terminal, and Eosin-Y was copolymerized in the hydrophilic block. The micelles could selectively adhere to bacteria instead of mammalian cells, inserting into the bacteria membrane to induce physical membrane damage and out-diffusion of intracellular milieu. Furthermore, significant in situ generation of reactive oxygen species was observed upon light irradiation, achieving further photodynamic eradication. Broad-spectrum bacterial inhibition was demonstrated for the polymeric antimicrobials, especially highly opportunistic Gram-negative bacteria, such as Pseudomona aeruginosa ( P. aeruginosa) based on the synergy of physical destruction and photodynamic therapy, without detectable resistance. In vivo P. aeruginosa-infected knife injury model and burn model both proved good potency of bacteria eradication and promoted wound healing, which was comparable with commercial antibiotics, yet no risk of drug resistance. It is promising to hurdle the infection and resistance suffered from highly opportunistic bacteria.
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Affiliation(s)
- Fengfeng Xiao
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science , South China Normal University , Guangzhou 510631 , China
- College of Biophotonics , South China Normal University , Guangzhou 510631 , China
| | - Bing Cao
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science , South China Normal University , Guangzhou 510631 , China
- College of Biophotonics , South China Normal University , Guangzhou 510631 , China
| | - Congyu Wang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science , South China Normal University , Guangzhou 510631 , China
- College of Biophotonics , South China Normal University , Guangzhou 510631 , China
| | - Xujuan Guo
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science , South China Normal University , Guangzhou 510631 , China
- College of Biophotonics , South China Normal University , Guangzhou 510631 , China
| | - Mengge Li
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science , South China Normal University , Guangzhou 510631 , China
- College of Biophotonics , South China Normal University , Guangzhou 510631 , China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science , South China Normal University , Guangzhou 510631 , China
- College of Biophotonics , South China Normal University , Guangzhou 510631 , China
| | - Xianglong Hu
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science , South China Normal University , Guangzhou 510631 , China
- College of Biophotonics , South China Normal University , Guangzhou 510631 , China
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Muñoz-Bonilla A, Echeverria C, Sonseca Á, Arrieta MP, Fernández-García M. Bio-Based Polymers with Antimicrobial Properties towards Sustainable Development. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E641. [PMID: 30791651 PMCID: PMC6416599 DOI: 10.3390/ma12040641] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/13/2019] [Accepted: 02/15/2019] [Indexed: 12/11/2022]
Abstract
This article concisely reviews the most recent contributions to the development of sustainable bio-based polymers with antimicrobial properties. This is because some of the main problems that humanity faces, nowadays and in the future, are climate change and bacterial multi-resistance. Therefore, scientists are trying to provide solutions to these problems. In an attempt to organize these antimicrobial sustainable materials, we have classified them into the main families; i.e., polysaccharides, proteins/polypeptides, polyesters, and polyurethanes. The review then summarizes the most recent antimicrobial aspects of these sustainable materials with antimicrobial performance considering their main potential applications in the biomedical field and in the food industry. Furthermore, their use in other fields, such as water purification and coating technology, is also described. Finally, some concluding remarks will point out the promise of this theme.
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Affiliation(s)
- Alexandra Muñoz-Bonilla
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Coro Echeverria
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Águeda Sonseca
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Marina P Arrieta
- Facultad de Ciencias Químicas, Universidad Complutense de Madrid (UCM), Av. Complutense s/n, Ciudad Universitaria, 28040 Madrid, Spain.
| | - Marta Fernández-García
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain.
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Otis G, Bhattacharya S, Malka O, Kolusheva S, Bolel P, Porgador A, Jelinek R. Selective Labeling and Growth Inhibition of Pseudomonas aeruginosa by Aminoguanidine Carbon Dots. ACS Infect Dis 2019; 5:292-302. [PMID: 30589261 DOI: 10.1021/acsinfecdis.8b00270] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pseudomonas aeruginosa is a highly virulent bacterium, particularly associated with the spread of multidrug resistance. Here we show that carbon dots (C-dots), synthesized from aminoguanidine and citric acid precursors, can selectively stain and inhibit the growth of P. aeruginosa strains. The aminoguanidine-C-dots were shown both to target P. aeruginosa bacterial cells and also to inhibit biofilm formation by the bacteria. Mechanistic analysis points to interactions between aminoguanidine residues on the C-dots' surface and P. aeruginosa lipopolysaccharide moieties as the likely determinants for both antibacterial and labeling activities. Indeed, the application of biomimetic membrane assays reveals that LPS-promoted insertion and bilayer permeation constitute the primary factors in the anti- P. aeruginosa effect of the aminoguanidine-C-dots. The aminoguanidine C-dots are easy to prepare in large quantities and are inexpensive and biocompatible and thus may be employed as a useful vehicle for selective staining and antibacterial activity against P. aeruginosa.
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Lopez-Moya F, Suarez-Fernandez M, Lopez-Llorca LV. Molecular Mechanisms of Chitosan Interactions with Fungi and Plants. Int J Mol Sci 2019; 20:E332. [PMID: 30650540 PMCID: PMC6359256 DOI: 10.3390/ijms20020332] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/07/2019] [Accepted: 01/11/2019] [Indexed: 12/19/2022] Open
Abstract
Chitosan is a versatile compound with multiple biotechnological applications. This polymer inhibits clinically important human fungal pathogens under the same carbon and nitrogen status as in blood. Chitosan permeabilises their high-fluidity plasma membrane and increases production of intracellular oxygen species (ROS). Conversely, chitosan is compatible with mammalian cell lines as well as with biocontrol fungi (BCF). BCF resistant to chitosan have low-fluidity membranes and high glucan/chitin ratios in their cell walls. Recent studies illustrate molecular and physiological basis of chitosan-root interactions. Chitosan induces auxin accumulation in Arabidopsis roots. This polymer causes overexpression of tryptophan-dependent auxin biosynthesis pathway. It also blocks auxin translocation in roots. Chitosan is a plant defense modulator. Endophytes and fungal pathogens evade plant immunity converting chitin into chitosan. LysM effectors shield chitin and protect fungal cell walls from plant chitinases. These enzymes together with fungal chitin deacetylases, chitosanases and effectors play determinant roles during fungal colonization of plants. This review describes chitosan mode of action (cell and gene targets) in fungi and plants. This knowledge will help to develop chitosan for agrobiotechnological and medical applications.
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Affiliation(s)
- Federico Lopez-Moya
- Department of Marine Sciences and Applied Biology, Laboratory of Plant Pathology, Multidisciplinary Institute for Environmental Studies (MIES) Ramon Margalef, University of Alicante, 03080 Alicante, Spain.
| | - Marta Suarez-Fernandez
- Department of Marine Sciences and Applied Biology, Laboratory of Plant Pathology, Multidisciplinary Institute for Environmental Studies (MIES) Ramon Margalef, University of Alicante, 03080 Alicante, Spain.
| | - Luis Vicente Lopez-Llorca
- Department of Marine Sciences and Applied Biology, Laboratory of Plant Pathology, Multidisciplinary Institute for Environmental Studies (MIES) Ramon Margalef, University of Alicante, 03080 Alicante, Spain.
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PEREIRA DC, GOES RHDTEBD, MARTINEZ AC, GANDRA JR, PRESENDO E, SANTOS MVD, OLIVEIRA RT, SILVA NGD, RIBEIRO MG, ALVEZ JLR. In vitro evaluation of the association of chitosan and cashew nut shell liquid as additives for ruminants. REVISTA BRASILEIRA DE SAÚDE E PRODUÇÃO ANIMAL 2019. [DOI: 10.1590/s1519-994005102019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT This study evaluated the in vitro digestibility of nutrients from different diets added with chitosan (Q), technic cashew nut shell liquid (LCC) and the association of Q and LCC. The treatments used consisted of 4 diets (forage: concentrate ratio of 100: 0, 50:50, 40:60 and 20:80) associated with 4 additives (control, chitosan, LCC and the association of Q + LCC), totaling 16 treatments, in a 4x4 factorial randomized block design. The dosages used were: Control (without additives), LCC (600mg/kg DM), Chitosan (900mg/kg DM), and LCCQ (600mg/kg LCC DM + 900mg/kg Chitosan DM). In the laboratory, samples were analyzed for IVDMD, IVNDFD, IVCPD, pH and RAN (ruminal ammonia nitrogen). For pH and RAN analyses, samples were taken at 0, 2, 4, 6 and 8 hours after incubation. The results showed higher digestibility of DM, NDF and CP for diets with chitosan and technic cashew nut shell liquid alone and higher pH and RAN values in the diets containing the two additives. The association of additives brings better results for animal nutrition and increases ruminant productivity.
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Marei N, Elwahy AHM, Salah TA, El Sherif Y, El-Samie EA. Enhanced antibacterial activity of Egyptian local insects' chitosan-based nanoparticles loaded with ciprofloxacin-HCl. Int J Biol Macromol 2018; 126:262-272. [PMID: 30584935 DOI: 10.1016/j.ijbiomac.2018.12.204] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 12/11/2018] [Accepted: 12/21/2018] [Indexed: 11/28/2022]
Abstract
Chitosan (CS), possess enormous properties, being biodegradable, biocompatible, and antimicrobial. CS could be formulated and casted into different forms including 2D films, hydrogels, and nanoparticles. Chitosan-based nanoparticles (CSNPs) showed countless interest as polymeric drug delivery system (DDS) with its improved bioavailability, and stability when compared with traditional DDS. Ciprofloxacin is a prescribed antibiotic for many diseases, but its efficiency was affected by antibacterial resistance. Therefore, in this study, CSNPs loaded with ciprofloxacin (Cipro/CSNPs) were prepared from CS isolated from desert locusts, beetles, honey bee exoskeletons, and shrimp shells were used as a standard control. CSNPs were formulated by ionic crosslinking method, then loaded with ciprofloxacin HCl, and characterized using particle size distribution, zeta potential, and drug entrapment efficiency. The release of ciprofloxacin from CSNPs was evaluated and its kinetic modelling was performed. Antibacterial activity of CSNPs was evaluated against Escherichia coli, Bacillus thuringiensis, Methicillin-resistant Staphylococcus aureus (MRSA) and, Pseudomonas aeruginosa. Minimum inhibitory concentrations (MIC) were determined and compared between chitosan sources. The Cipro/CSNPs results indicate that the highest antibacterial activity against E. coli and MRSA with MIC varying from 0.0043 to 0.01 μg/ml and from 0.07 to 0.14 μg/ml, respectively. In addition, CSNPs enhanced drug delivery, and allowed its controlled release.
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Affiliation(s)
- Narguess Marei
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Ahmed H M Elwahy
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Taher A Salah
- Nanotechnology Research Centre, British University in Egypt, Cairo, Egypt
| | - Youssef El Sherif
- Department of Pharmaceutics and Drug Technology, Faculty of Pharmacy, Heliopolis University, Cairo, Egypt
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Abstract
A novel amphipathic chitosan derivative, O-acetyl-chitosan acetic ester (ACHA), was synthesized by the reaction of chitosan with acetic acid in the presence of thionyl chloride. The physicochemical properties of ACHA were characterized by FTIR, 1H NMR, TGA, and XRD. The yield (Y) of ACHA was 79.4%, and the degree of acetylation (DA) of ACHA was 1.04. Compared to CS, ACHA could be dissolved in many organic solvents, deionized water, and aqueous solution. Our results showed that ACHA exhibited a superior antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. These findings indicated that ACHA was preferable for use as antimicrobial agents in wound healing, food preservative, and tissue engineering.
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73
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Gupta A, Rattan V, Rai S. Efficacy of Chitosan in promoting wound healing in extraction socket: A prospective study. J Oral Biol Craniofac Res 2018; 9:91-95. [PMID: 30456164 DOI: 10.1016/j.jobcr.2018.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 11/06/2018] [Indexed: 11/29/2022] Open
Abstract
Purpose Chitosan has been shown to promote wound healing and induce bone formation. The aim of this split-mouth study was to evaluate the effectiveness of chitosan based dressing in wound healing after lower third molar extraction. Method Asymptomatic symmetrical mandibular third molars were extracted simultaneously in 27 patients and Chitosan dressing was placed into the extraction socket in the test side. Pain scores were recorded on VAS using a 0 to 10 pain score. Wound healing was compared between right and left side. Radiographic findings were evaluated by observing lamina dura and density of extraction socket. Results Test group had more pain than control at all time intervals and unerupted tooth sites showed mean pain score significantly more than erupted tooth sites. Test group was superior to control in event of wound healing. Healing was significantly better in erupted tooth than unerupted tooth. At second week 12 sites showed better radiographic findings in chitosan treated group compared to 3 sites in the control group. At third month, 14 sites showed improved bone formation in chitosan treated group compared to 4 in control group. None of the unerupted teeth group showed better radiographic finding in test side at 2 week and 3 month compared to erupted teeth group. Conclusion Chitosan is effective in promoting wound healing and early osteogenesis in erupted tooth socket after extraction. We recommend that chitosan dressing should be used in the sockets of erupted tooth after extraction but should be avoided in unerupted or impacted teeth cases.
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Affiliation(s)
- Akshat Gupta
- Unit of Oral & Maxillofacial Surgery, Oral Health Sciences Centre, Postgraduate Institute of Medical Education & Research, Chandigarh, 160012, India
| | - Vidya Rattan
- Unit of Oral & Maxillofacial Surgery, Oral Health Sciences Centre, Postgraduate Institute of Medical Education & Research, Chandigarh, 160012, India
| | - Sachin Rai
- Unit of Oral & Maxillofacial Surgery, Oral Health Sciences Centre, Postgraduate Institute of Medical Education & Research, Chandigarh, 160012, India
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Chang MH, Hsiao YP, Hsu CY, Lai PS. Photo-Crosslinked Polymeric Matrix with Antimicrobial Functions for Excisional Wound Healing in Mice. NANOMATERIALS 2018; 8:nano8100791. [PMID: 30301173 PMCID: PMC6215132 DOI: 10.3390/nano8100791] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 09/30/2018] [Accepted: 09/30/2018] [Indexed: 01/08/2023]
Abstract
Wound infection extends the duration of wound healing and also causes systemic infections such as sepsis, and, in severe cases, may lead to death. Early prevention of wound infection and its appropriate treatment are important. A photoreactive modified gelatin (GE-BTHE) was synthesized by gelatin and a conjugate formed from the 3,3′,4,4′-benzophenone tetracarboxylic dianhydride (BTDA) and the 2-hydroxyethyl methacrylate (HEMA). Herein, we investigated the photocurable polymer solution (GE-BTHE mixture) containing GE-BTHE, poly(ethylene glycol) diacrylate (PEGDA), chitosan, and methylene blue (MB), with antimicrobial functions and photodynamic antimicrobial chemotherapy for wound dressing. This photocurable polymer solution was found to have fast film-forming property attributed to the photochemical reaction between GE-BTHE and PEGDA, as well as the antibacterial activity in vitro attributed to the ingredients of chitosan and MB. Our in vivo results also demonstrated that untreated wounds after 3 days had the same scab level as the GE-BTHE mixture-treated wounds after 20 s of irradiation, which indicates that the irradiated GE-BTHE mixture can be quickly transferred into artificial scabs to protect wounds from an infection that can serve as a convenient excisional wound dressing with antibacterial efficacy. Therefore, it has the potential to treat nonhealing wounds, deep burns, diabetic ulcers and a variety of mucosal wounds.
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Affiliation(s)
- Ming-Hsiang Chang
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Yu-Ping Hsiao
- Institute of Medicine, School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
- Department of Dermatology, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
| | - Chia-Yen Hsu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Ping-Shan Lai
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
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Biopolymers: Applications in wound healing and skin tissue engineering. Mol Biol Rep 2018; 45:2857-2867. [PMID: 30094529 DOI: 10.1007/s11033-018-4296-3] [Citation(s) in RCA: 164] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/01/2018] [Indexed: 12/13/2022]
Abstract
Wound is a growing healthcare challenge affecting several million worldwide. Lifestyle disorders such as diabetes increases the risk of wound complications. Effective management of wound is often difficult due to the complexity in the healing process. Addition to the conventional wound care practices, the bioactive polymers are gaining increased importance in wound care. Biopolymers are naturally occurring biomolecules synthesized by microbes, plants and animals with highest degree of biocompatibility. The bioactive properties such as antimicrobial, immune-modulatory, cell proliferative and angiogenic of the polymers create a microenvironment favorable for the healing process. The versatile properties of the biopolymers such as cellulose, alginate, hyaluronic acid, collagen, chitosan etc have been exploited in the current wound care market. With the technological advances in material science, regenerative medicine, nanotechnology, and bioengineering; the functional and structural characteristics of biopolymers can be improved to suit the current wound care demands such as tissue repair, restoration of lost tissue integrity and scarless healing. In this review we highlight on the sources, mechanism of action and bioengineering approaches adapted for commercial exploitation.
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Narayanaswamy VP, Keagy LL, Duris K, Wiesmann W, Loughran AJ, Townsend SM, Baker S. Novel Glycopolymer Eradicates Antibiotic- and CCCP-Induced Persister Cells in Pseudomonas aeruginosa. Front Microbiol 2018; 9:1724. [PMID: 30123191 PMCID: PMC6085434 DOI: 10.3389/fmicb.2018.01724] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 07/11/2018] [Indexed: 11/13/2022] Open
Abstract
Antibiotic treatments often fail to completely eradicate a bacterial infection, leaving behind an antibiotic-tolerant subpopulation of intact bacterial cells called persisters. Persisters are considered a major cause for treatment failure and are thought to greatly contribute to the recalcitrance of chronic infections. Pseudomonas aeruginosa infections are commonly associated with elevated levels of drug-tolerant persister cells, posing a serious threat to human health. This study represents the first time a novel large molecule polycationic glycopolymer, poly (acetyl, arginyl) glucosamine (PAAG), has been evaluated against antibiotic and carbonyl cyanide m-chlorophenylhydrazone induced P. aeruginosa persisters. PAAG eliminated eliminated persisters at concentrations that show no significant cytotoxicity on human lung epithelial cells. PAAG demonstrated rapid bactericidal activity against both forms of induced P. aeruginosa persister cells resulting in complete eradication of the in vitro persister cells within 24 h of treatment. PAAG demonstrated greater efficacy against persisters in vitro than antibiotics currently being used to treat persistent chronic infections such as tobramycin, colistin, azithromycin, aztreonam, and clarithromycin. PAAG caused rapid permeabilization of the cell membrane and caused significant membrane depolarization in persister cells. PAAG efficacy against these bacterial subpopulations suggests it may have substantial therapeutic potential for eliminating recurrent P. aeruginosa infections.
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Cardelle-Cobas A, Reis PJM, Costa E, Tavaria FK, Pintado ME. Chitosan impregnated gutta-percha points: antimicrobial in vitro evaluation and mechanical properties. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1466134] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Alejandra Cardelle-Cobas
- Universidade Católica Portuguesa, Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal
| | - Patrícia J. M. Reis
- Universidade Católica Portuguesa, Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal
| | - Eduardo Costa
- Universidade Católica Portuguesa, Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal
| | - Freni K. Tavaria
- Universidade Católica Portuguesa, Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal
| | - Manuela E. Pintado
- Universidade Católica Portuguesa, Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal
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Iacob AT, Drăgan M, Ghețu N, Pieptu D, Vasile C, Buron F, Routier S, Giusca SE, Caruntu ID, Profire L. Preparation, Characterization and Wound Healing Effects of New Membranes Based on Chitosan, Hyaluronic Acid and Arginine Derivatives. Polymers (Basel) 2018; 10:E607. [PMID: 30966641 PMCID: PMC6404145 DOI: 10.3390/polym10060607] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/27/2018] [Accepted: 05/29/2018] [Indexed: 11/26/2022] Open
Abstract
New membranes based on chitosan and chitosan-hyaluronic acid containing new arginine derivatives with thiazolidine-4-one scaffold have been prepared using the ionic cross-linking method. The presence of the arginine derivatives with thiazolidine-4-one scaffold into the polymer matrix was proved by Fourier-transform infrared spectroscopy (FT-IR). The scanning electron microscopy (SEM) revealed a micro-porous structure that is an important characteristic for the treatment of burns, favoring the exudate absorption, the rate of colonization, the cell structure, and the angiogenesis process. The developed polymeric membranes also showed good swelling degree, improved hydrophilicity, and biocompatibility in terms of surface free energy components, which supports their application for tissue regeneration. Moreover, the chitosan-arginine derivatives (CS-6h, CS-6i) and chitosan-hyaluronic acid-arginine derivative (CS-HA-6h) membranes showed good healing effects on the burn wound model induced to rats. For these membranes a complete reepithelialization was observed after 15 days of the experiment, which supports a faster healing process.
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Affiliation(s)
- Andreea-Teodora Iacob
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, Iasi 700115, Romania.
| | - Maria Drăgan
- Department of Pharmaceutical Biotechnologies and Drug Industry, Faculty of Pharmacy, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, Iasi 700115, Romania.
| | - Nicolae Ghețu
- Department of Plastic Surgery, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, Iasi 700115, Romania.
| | - Dragoș Pieptu
- Department of Plastic Surgery, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, Iasi 700115, Romania.
| | - Cornelia Vasile
- Department of Physical Chemistry of Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore GhicaVoda Alley, Iasi 700487, Romania.
| | - Frédéric Buron
- Institut de Chimie Organique et Analytique (ICOA), Univ Orleans, UMR CNRS 7311, F-45067 Orléans, France.
| | - Sylvain Routier
- Institut de Chimie Organique et Analytique (ICOA), Univ Orleans, UMR CNRS 7311, F-45067 Orléans, France.
| | - Simona Elena Giusca
- Department of Morphofunctional Sciences, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, Iasi 700115, Romania.
| | - Irina-Draga Caruntu
- Department of Morphofunctional Sciences, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, Iasi 700115, Romania.
| | - Lenuța Profire
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, Iasi 700115, Romania.
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79
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Liang S, Dang Q, Liu C, Zhang Y, Wang Y, Zhu W, Chang G, Sun H, Cha D, Fan B. Characterization and antibacterial mechanism of poly(aminoethyl) modified chitin synthesized via a facile one-step pathway. Carbohydr Polym 2018; 195:275-287. [PMID: 29804977 DOI: 10.1016/j.carbpol.2018.04.109] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 04/24/2018] [Accepted: 04/27/2018] [Indexed: 01/22/2023]
Abstract
This work aims to synthesize poly(aminoethyl) modified chitin (PAEMC) and ascertain its antibacterial activity and mechanism. FTIR and 1H NMR results proved aminoethyl moieties were grafted to C6OH and C3OH on chitin backbone in the form of polymerization. XRD and TG/DTG analyses manifested its well-defined crystallinity and thermostability. PAEMC, with average molecular weight (MW) of 851.0 kDa, degree of deacetylation (DD) of 27.95%, and degree of substitution (DS) of 1.77, had good solubility in aqueous solutions over the pH range of 3-12, and also possessed high antimicrobial activity against Staphylococcus epidermidis, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Bacillus proteus, and Klebsiella pneumoniae, commonly causing chronic wound infections. Nucleic acid release, protein leakage, increased inner membrane permeability, and decreased cell surface hydrophobicity implied bacterial cytomembranes were substantially compromised in the presence of PAEMC. Microscopically, PAEMC visually perturbed bacteria, illustrating deformed and even collapsed morphologies. Overall, PAEMC possessed good solubility, effectively destroyed bacteria via a membrane damage mechanism, and might serve as an antibacterial agent for treatments of chronic wound infections.
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Affiliation(s)
- Shengnan Liang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Qifeng Dang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Chengsheng Liu
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China.
| | - Yubei Zhang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Yan Wang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Wenjing Zhu
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Guozhu Chang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Hantian Sun
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Dongsu Cha
- The Graduate School of Biotechnology, Korea University, Seoul 136-701, South Korea
| | - Bing Fan
- Qingdao Aorun Biotechnology Co., Ltd., Room 602, Century Mansion, 39 Donghaixi Road, Qingdao 266071, PR China
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80
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Pranantyo D, Xu LQ, Kang ET, Chan-Park MB. Chitosan-Based Peptidopolysaccharides as Cationic Antimicrobial Agents and Antibacterial Coatings. Biomacromolecules 2018; 19:2156-2165. [DOI: 10.1021/acs.biomac.8b00270] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Dicky Pranantyo
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Kent Ridge, Singapore 117585
| | - Li Qun Xu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Kent Ridge, Singapore 117585
| | - En-Tang Kang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Kent Ridge, Singapore 117585
| | - Mary B. Chan-Park
- Centre of Antimicrobial Bioengineering School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459
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81
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In Vitro activity of novel glycopolymer against clinical isolates of multidrug-resistant Staphylococcus aureus. PLoS One 2018; 13:e0191522. [PMID: 29342216 PMCID: PMC5771624 DOI: 10.1371/journal.pone.0191522] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 01/05/2018] [Indexed: 01/15/2023] Open
Abstract
The incidence of multidrug-resistant (MDR) organisms, including methicillin-resistant Staphylococcus aureus (MRSA), is a serious threat to public health. Progress in developing new therapeutics is being outpaced by antibiotic resistance development, and alternative agents that rapidly permeabilize bacteria hold tremendous potential for treating MDR infections. A new class of glycopolymers includes polycationic poly-N (acetyl, arginyl) glucosamine (PAAG) is under development as an alternative to traditional antibiotic strategies to treat MRSA infections. This study demonstrates the antibacterial activity of PAAG against clinical isolates of methicillin and mupirocin-resistant Staphylococcus aureus. Multidrug-resistant S. aureus was rapidly killed by PAAG, which completely eradicated 88% (15/17) of all tested strains (6-log reduction in CFU) in ≤ 12-hours at doses that are non-toxic to mammalian cells. PAAG also sensitized all the clinical MRSA strains (17/17) to oxacillin as demonstrated by the observed reduction in the oxacillin MIC to below the antibiotic resistance breakpoint. The effect of PAAG and standard antibiotics including vancomycin, oxacillin, mupirocin and bacitracin on MRSA permeability was studied by measuring propidium iodide (PI) uptake by bacterial cells. Antimicrobial resistance studies showed that S. aureus developed resistance to PAAG at a rate slower than to mupirocin but similar to bacitracin. PAAG was observed to resensitize drug-resistant S. aureus strains sampled from passage 13 and 20 of the multi-passage resistance study, reducing MICs of mupirocin and bacitracin below their clinical sensitivity breakpoints. This class of bacterial permeabilizing glycopolymers may provide a new tool in the battle against multidrug-resistant bacteria.
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82
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Bahamondez-Canas T, Smyth HDC. Influence of Excipients on the Antimicrobial Activity of Tobramycin Against Pseudomonas aeruginosa Biofilms. Pharm Res 2018; 35:10. [PMID: 29294187 DOI: 10.1007/s11095-017-2301-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 11/03/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE It is unknown if inactive pharmaceutical ingredients influence the activity of antibiotics they are co-formulated with. Recently it was found that materials acting as carbon nutrient sources for bacteria can promote bacterial dispersion from a biofilm and/or reverse the persister state of a subpopulation of bacteria within the biofilms. Both can make bacteria more susceptible to antibiotics. Thus, the aim was to identify potential excipients to improve antibiotic activity in Pseudomonas aeruginosa biofilms. METHODS We screened 190 potential excipients alone, and in combination with tobramycin sulfate against P. aeruginosa (strain PAO1) grown planktonically or as biofilms. After the excipient screening stage, we investigated the effect of 10 selected excipients against a more virulent strain (luminescent strain UCBPP-PA14). Temporal changes in luminescence, as an indicator of bacterial proliferation, and surviving colony forming units (CFUs) from the treated PA14 biofilms were quantified. RESULTS Forty-eight materials tested caused a reduction of PAO1 proliferation either alone or combined with tobramycin. L-alanine (p < 0.05), D-alanine (p > 0.05), and N-acetyl-D-glucosaminitol (p > 0.05) improved the activity of tobramycin measured by PA14 luminometry. Additionally, L-alanine and succinic acid significantly reduced the survival of PA14 biofilms (p < 0.05). CONCLUSIONS L-alanine, succinic acid, and N-acetyl-D-glucosaminitol may be useful as antibiotic adjuvants in future tobramycin anti-biofilm formulations.
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Affiliation(s)
- Tania Bahamondez-Canas
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Ave, A1920, Austin, Texas, 78712, USA
| | - Hugh D C Smyth
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Ave, A1920, Austin, Texas, 78712, USA. .,Center for Infectious Disease, The University of Texas at Austin, Austin, Texas, USA.
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83
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Wang H, Wang H, Li D, Luo Y. Effect of Chitosan and Garlic Essential Oil on Microbiological and Biochemical Changes that Affect Quality in Grass Carp (Ctenopharyngodon idellus) Fillets During Storage at 4°C. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2017. [DOI: 10.1080/10498850.2017.1403525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Hang Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Huiyi Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Dapeng Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Yongkang Luo
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
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84
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Parsa M, Ahmadi M, Dastmalchi H, Tehrani A. Antibacterial Effect of Silver Nanoparticles along with L-Arginine against P. aeruginosa. MEDICAL LABORATORY JOURNAL 2017. [DOI: 10.29252/mlj.11.6.7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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85
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Ma Z, Garrido-Maestu A, Jeong KC. Application, mode of action, and in vivo activity of chitosan and its micro- and nanoparticles as antimicrobial agents: A review. Carbohydr Polym 2017; 176:257-265. [DOI: 10.1016/j.carbpol.2017.08.082] [Citation(s) in RCA: 155] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 07/28/2017] [Accepted: 08/18/2017] [Indexed: 01/22/2023]
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86
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Dang Q, Liu K, Liu C, Xu T, Yan J, Yan F, Cha D, Zhang Q, Cao Y. Preparation, characterization, and evaluation of 3,6-O-N-acetylethylenediamine modified chitosan as potential antimicrobial wound dressing material. Carbohydr Polym 2017; 180:1-12. [PMID: 29103484 DOI: 10.1016/j.carbpol.2017.10.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 09/09/2017] [Accepted: 10/03/2017] [Indexed: 11/25/2022]
Abstract
This work aims to prepare 3,6-O-N-acetylethylenediamine modified chitosan (AEDMCS) and evaluate its potential use as an antimicrobial wound dressing material. UV, FTIR, and 1H NMR results demonstrated N-acetylethylenediamine groups were successfully grafted to C3OH and C6OH on polysaccharide skeletons. TGA, XRD, and solubility tests indicated that as compared with chitosan, AEDMCS had diminished thermostability, decreased crystallinity, and greatly improved solubility. AEDMCS, with degrees of deacetylation and substitution being respectively 90.3% and 0.72, exhibited higher antibacterial activity than chitosan against six bacteria generally causing wound infections. Meanwhile, AEDMCS had permissible hemolysis and cytotoxicity and low BSA adsorption even at a AEDMCS concentration of 25mg/mL. Acute toxicity tests showed AEDMCS was nontoxic. Moreover, the wound healing property was preliminarily evaluated, illustrating that AEDMCS enhanced wound healing rates as expected and had no significant differences as compared with chitosan. These results suggested AEDMCS might be a potential material used as antibacterial wound dressings.
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Affiliation(s)
- Qifeng Dang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Kai Liu
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Chengsheng Liu
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China.
| | - Tao Xu
- The Affiliated Hospital of Qingdao University, Qingdao University, 308 Ningxia Road, Qingdao 266071, PR China
| | - Jingquan Yan
- School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Feilong Yan
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Dongsu Cha
- The Graduate School of Biotechnology, Korea University, Seoul 136-701, South Korea
| | - Qianqian Zhang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Yachan Cao
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
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87
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Sahariah P, Másson M. Antimicrobial Chitosan and Chitosan Derivatives: A Review of the Structure–Activity Relationship. Biomacromolecules 2017; 18:3846-3868. [DOI: 10.1021/acs.biomac.7b01058] [Citation(s) in RCA: 434] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Priyanka Sahariah
- Faculty
of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
| | - Már Másson
- Faculty
of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
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88
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Yang J, Lu H, Li M, Liu J, Zhang S, Xiong L, Sun Q. Development of chitosan-sodium phytate nanoparticles as a potent antibacterial agent. Carbohydr Polym 2017; 178:311-321. [PMID: 29050599 DOI: 10.1016/j.carbpol.2017.09.053] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 09/13/2017] [Accepted: 09/14/2017] [Indexed: 10/18/2022]
Abstract
Chitosan nanoparticles have attracted considerable attention as a potential carrier for food and pharmaceutical applications. Herein, using natural sodium phytate as a gelation agent, we developed a new type of green and biocompatible chitosan nanoparticles. We discovered that the chitosan-sodium phytate nanoparticles exhibited potent antibacterial activities. The chitosan-sodium phytate nanoparticles prepared from low molecular weight (LMW, 140±7kDa) and medium molecular weight (MMW, 454±21kDa) chitosan were spherical. Under optimum conditions-with a ratio of LMW chitosan to sodium phytate of 24:1 and MMW chitosan to sodium phytate of 21:1-the sizes of the LMW and MMW chitosan nanoparticles were 20-80 and 80-100nm, respectively, as observed by transmission electron microscopy. The formation mechanism of chitosan nanoparticles occurred through both electrostatic interactions and hydrogen bonds. No cytotoxicity for normal liver cells was found in chitosan-sodium phytate nanoparticles measured by methyl thiazolyl tetrazolium assay. Furthermore, the antimicrobial assays indicated that the antimicrobial activity of the LMW chitosan nanoparticles was greater than that of MMW chitosan nanoparticles. The minimum inhibition concentration values and half inhibiting concentration of LMW chitosan-sodium phytate nanoparticles for Escherichia coli were 1.5 and 0.8mg/mL, respectively. In addition, the antimicrobial activity of chitosan nanoparticles against Gram-negative bacteria was better than that against Gram-positive bacteria. The newly developed chitosan-sodium phytate nanoparticles could be used as a potential antibacterial agent.
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Affiliation(s)
- Jie Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Hao Lu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Man Li
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Jing Liu
- Central Laboratory, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Shuangling Zhang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Liu Xiong
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Qingjie Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China.
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89
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Intranasal administration of carbamazepine-loaded carboxymethyl chitosan nanoparticles for drug delivery to the brain. Asian J Pharm Sci 2017; 13:72-81. [PMID: 32104380 PMCID: PMC7032105 DOI: 10.1016/j.ajps.2017.09.001] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 08/20/2017] [Accepted: 09/07/2017] [Indexed: 01/18/2023] Open
Abstract
Epilepsy is considered as a common and diverse set of chronic neurological disorders and its symptoms can be controlled by antiepileptic drugs (AEDs). The presence of p-glycoprotein and multi-drug resistance transporters in the blood-brain barrier could prevent the entry of AEDs into the brain, causing drug resistant epilepsy. To overcome this problem, we propose using carboxymethyl chitosan nanoparticles as a carrier to deliver carbamazepine (CBZ) intra-nasally with the purpose to bypass the blood-brain barrier thus to enhance the brain drug concentration and the treatment efficacy. Results so far indicate that the developed CBZ-NPs have small particle size (218.76 ± 2.41 nm) with high drug loading (around 35%) and high entrapment efficiency (around 80%). The in vitro release profiles of CBZ from the NPs are in accordance with the Korsmeyer-peppas model. The in vivo results show that both encapsulation of CBZ in nanoparticles and the nasal route determined the enhancement of the drug bioavailability and brain targeting characteristics.
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90
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Antibacterial activity of phenyllactic acid against Listeria monocytogenes and Escherichia coli by dual mechanisms. Food Chem 2017; 228:533-540. [DOI: 10.1016/j.foodchem.2017.01.112] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/17/2016] [Accepted: 01/23/2017] [Indexed: 02/03/2023]
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91
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Novel glycopolymer sensitizes Burkholderia cepacia complex isolates from cystic fibrosis patients to tobramycin and meropenem. PLoS One 2017; 12:e0179776. [PMID: 28662114 PMCID: PMC5491046 DOI: 10.1371/journal.pone.0179776] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 06/02/2017] [Indexed: 11/19/2022] Open
Abstract
Burkholderia cepacia complex (Bcc) infection, associated with cystic fibrosis (CF) is intrinsically multidrug resistant to antibiotic treatment making eradication from the CF lung virtually impossible. Infection with Bcc leads to a rapid decline in lung function and is often a contraindication for lung transplant, significantly influencing morbidity and mortality associated with CF disease. Standard treatment frequently involves antibiotic combination therapy. However, no formal strategy has been adopted in clinical practice to guide successful eradication. A new class of direct-acting, large molecule polycationic glycopolymers, derivatives of a natural polysaccharide poly-N-acetyl-glucosamine (PAAG), are in development as an alternative to traditional antibiotic strategies. During treatment, PAAG rapidly targets the anionic structural composition of bacterial outer membranes. PAAG was observed to permeabilize bacterial membranes upon contact to facilitate potentiation of antibiotic activity. Three-dimensional checkerboard synergy analyses were used to test the susceptibility of eight Bcc strains (seven CF clinical isolates) to antibiotic combinations with PAAG or ceftazidime. Potentiation of tobramycin and meropenem activity was observed in combination with 8-128 μg/mL PAAG. Treatment with PAAG reduced the minimum inhibitory concentration (MIC) of tobramycin and meropenem below their clinical sensitivity breakpoints (≤4 μg/mL), demonstrating the ability of PAAG to sensitize antibiotic resistant Bcc clinical isolates. Fractional inhibitory concentration (FIC) calculations showed PAAG was able to significantly potentiate antibacterial synergy with these antibiotics toward all Bcc species tested. These preliminary studies suggest PAAG facilitates a broad synergistic activity that may result in more positive therapeutic outcomes and supports further development of safe, polycationic glycopolymers for inhaled combination antibiotic therapy, particularly for CF-associated Bcc infections.
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92
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Sánchez Á, Mengíbar M, Rivera-Rodríguez G, Moerchbacher B, Acosta N, Heras A. The effect of preparation processes on the physicochemical characteristics and antibacterial activity of chitooligosaccharides. Carbohydr Polym 2017; 157:251-257. [DOI: 10.1016/j.carbpol.2016.09.055] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 09/09/2016] [Accepted: 09/15/2016] [Indexed: 10/21/2022]
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93
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Wu M, Long Z, Xiao H, Dong C. Recent research progress on preparation and application of N, N, N-trimethyl chitosan. Carbohydr Res 2016; 434:27-32. [DOI: 10.1016/j.carres.2016.08.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/21/2016] [Accepted: 08/02/2016] [Indexed: 11/28/2022]
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94
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Viswanathan K, Monisha P, Srinivasan M, Swathi D, Raman M, Dhinakar Raj G. Chlorhexidine-calcium phosphate nanoparticles — Polymer mixer based wound healing cream and their applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:516-521. [DOI: 10.1016/j.msec.2016.05.075] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/19/2016] [Accepted: 05/18/2016] [Indexed: 11/29/2022]
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95
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Yan F, Dang Q, Liu C, Yan J, Wang T, Fan B, Cha D, Li X, Liang S, Zhang Z. 3,6-O-[N-(2-Aminoethyl)-acetamide-yl]-chitosan exerts antibacterial activity by a membrane damage mechanism. Carbohydr Polym 2016; 149:102-11. [DOI: 10.1016/j.carbpol.2016.04.098] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 04/14/2016] [Accepted: 04/21/2016] [Indexed: 10/21/2022]
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96
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Hsiao HL, Lin SB, Chen LC, Chen HH. Hurdle Effect of Antimicrobial Activity Achieved by Time Differential Releasing of Nisin and Chitosan Hydrolysates from Bacterial Cellulose. J Food Sci 2016; 81:M1184-91. [DOI: 10.1111/1750-3841.13295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 03/01/2016] [Accepted: 03/07/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Hui-Ling Hsiao
- Dept. of Food Science; National Ilan Univ; 1 Sec. 1, Shen Nung Rd. Ilan city Taiwan, R.O.C
| | - Shih-Bin Lin
- Dept. of Food Science; National Ilan Univ; 1 Sec. 1, Shen Nung Rd. Ilan city Taiwan, R.O.C
| | - Li-Chen Chen
- Dept. of Food Science; National Ilan Univ; 1 Sec. 1, Shen Nung Rd. Ilan city Taiwan, R.O.C
| | - Hui-Huang Chen
- Dept. of Food Science; National Ilan Univ; 1 Sec. 1, Shen Nung Rd. Ilan city Taiwan, R.O.C
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97
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Ghimire N, Foss BL, Sun Y, Deng Y. Interactions among osteoblastic cells, Staphylococcus aureus, and chitosan-immobilized titanium implants in a postoperative coculture system: An in vitro study. J Biomed Mater Res A 2015; 104:586-594. [PMID: 26488154 DOI: 10.1002/jbm.a.35597] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 09/25/2015] [Accepted: 10/20/2015] [Indexed: 11/06/2022]
Abstract
Biomaterial-related infections (BRIs) have become a major challenge in the field of orthopedic implants. In this study, we delved into the problem of BRI and attempted to reduce the possibility of BRI incidence via surface modification of titanium (Ti) with chitosan (SA-CS-Ti). To comprehensively evaluate the anti-infection potential of SA-CS-Ti, we first constructed a postoperative infection (POI) model with varying concentrations of bacteria (102 CFU/sample and 104 CFU/sample) and a constant number of SaOS-2 cells (105 /sample). Then, we biologically characterized the interactions between the SaOS-2 cells, bacteria, and different Ti implants using the POI model. The results from the osteoblastic cell and bacterial attachment tests demonstrated that the SA-CS-Ti surfaces exhibit superior osteogenic behavior relative to other Ti surfaces studied while showing significant anti-infective activities in the POI model with a low infection ratio (bacteria: cell ratio of 0.001:1) 30 min after infection. Additionally, the SA-CS-Ti surfaces showed significantly reduced (p < 0.05) bacteria proliferation compared to the control Ti surfaces (UN-Ti), demonstrating their antifouling property. The significantly increased (p < 0.05) sensitivity of Staphylococcus. aureus adhered to the SA-CS-Ti surfaces against cefazolin (1 mg/L treatment) and gentamicin (10 mg/L and 100 mg/L treatment) in the coculture system augmented potential of SA-CS-Ti to be used as orthopedic implants. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 586-594, 2016.
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Affiliation(s)
- Niranjan Ghimire
- Department of Biomedical Engineering, University of South Dakota, 4800 North Career Avenue, Sioux Falls, South Dakota, 57107
| | - Berit L Foss
- Department of Biomedical Engineering, University of South Dakota, 4800 North Career Avenue, Sioux Falls, South Dakota, 57107
| | - Yuyu Sun
- Department of Chemistry, the University of Massachusetts, One University Avenue, Lowell, Massachusetts, 01854
| | - Ying Deng
- Department of Biomedical Engineering, University of South Dakota, 4800 North Career Avenue, Sioux Falls, South Dakota, 57107
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98
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Cai J, Dang Q, Liu C, Wang T, Fan B, Yan J, Xu Y. Preparation, characterization and antibacterial activity of O -acetyl-chitosan- N -2-hydroxypropyl trimethyl ammonium chloride. Int J Biol Macromol 2015; 80:8-15. [DOI: 10.1016/j.ijbiomac.2015.05.061] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/14/2015] [Accepted: 05/17/2015] [Indexed: 11/29/2022]
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99
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Liu X, Xia W, Jiang Q, Xu Y, Yu P. Effect of kojic acid-grafted-chitosan oligosaccharides as a novel antibacterial agent on cell membrane of gram-positive and gram-negative bacteria. J Biosci Bioeng 2015; 120:335-9. [DOI: 10.1016/j.jbiosc.2015.01.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 11/25/2014] [Accepted: 01/08/2015] [Indexed: 11/30/2022]
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Zhang ZH, Han Z, Zeng XA, Xiong XY, Liu YJ. Enhancing mechanical properties of chitosan films via modification with vanillin. Int J Biol Macromol 2015; 81:638-43. [PMID: 26314906 DOI: 10.1016/j.ijbiomac.2015.08.042] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/08/2015] [Accepted: 08/20/2015] [Indexed: 10/23/2022]
Abstract
The vanillin/chitosan composite films were prepared using the solvent evaporation method. The properties of the films including optical property, water vapor permeability (WVP), tensile strength (TS) and elongation at break (%E) were studied to investigate the effect of cross-linking agent of vanillin on chitosan films by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectrum (FT-IR). Results showed that the TS of composite films increased by 53.3% and the WVP decreased by 36.5% compared with pure chitosan film that were due to the formation of the dense network structure by FT-IR spectra. There were almost no changes of the thermal stability of the composite films compared with the pure chitosan film by TGA analysis. In addition, from the SEM images, it could be seen that the film with addition of vanillin with 0.5-10% concentration exhibited good compatibility.
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Affiliation(s)
- Zhi-Hong Zhang
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Zhong Han
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong 510640, China.
| | - Xin-An Zeng
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong 510640, China.
| | - Xia-Yu Xiong
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Yu-Jia Liu
- Department of Applied Chemistry, South China Agricultural University, Guangzhou, Guangdong 510642, China
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