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Górecka Ż, Idaszek J, Heljak M, Martinez DC, Choińska E, Kulas Z, Święszkowski W. Indocyanine green and iohexol loaded hydroxyapatite in poly(L-lactide-co-caprolactone)-based composite for bimodal near-infrared fluorescence- and X-ray-based imaging. J Biomed Mater Res B Appl Biomater 2024; 112:e35313. [PMID: 37596854 DOI: 10.1002/jbm.b.35313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 07/19/2023] [Accepted: 07/31/2023] [Indexed: 08/20/2023]
Abstract
This study aimed to develop material for multimodal imaging by means of X-ray and near-infrared containing FDA- and EMA-approved iohexol and indocyanine green (ICG). The mentioned contrast agents (CAs) are hydrophilic and amphiphilic, respectively, which creates difficulties in fabrication of functional polymeric composites for fiducial markers (FMs) with usage thereof. Therefore, this study exploited for the first time the possibility of enhancing the radiopacity and introduction of the NIR fluorescence of FMs by adsorption of the CAs on hydroxyapatite (HAp) nanoparticles. The particles were embedded in the poly(L-lactide-co-caprolactone) (P[LAcoCL]) matrix resulting in the composite material for bimodal near-infrared fluorescence- and X-ray-based imaging. The applied method of material preparation provided homogenous distribution of both CAs with high iohexol loading efficiency and improved fluorescence signal due to hindered ICG aggregation. The material possessed profound contrasting properties for both imaging modalities. Its stability was evaluated during in vitro experiments in phosphate-buffered saline (PBS) and foetal bovine serum (FBS) solutions. The addition of HAp nanoparticles had significant effect on the fluorescence signal. The X-ray radiopacity was stable within minimum 11 weeks, even though the addition of ICG contributed to a faster release of iohexol. The stiffness of the material was not affected by iohexol or ICG, but incorporation of HAp nanoparticles elevated the values of bending modulus by approximately 70%. Moreover, the performed cell study revealed that all tested materials were not cytotoxic. Thus, the developed material can be successfully used for fabrication of FMs.
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Affiliation(s)
- Żaneta Górecka
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Warsaw, Poland
| | - Joanna Idaszek
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Marcin Heljak
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Diana C Martinez
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Emilia Choińska
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Zbigniew Kulas
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Wojciech Święszkowski
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
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2
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Palierse E, Masse S, Laurent G, Le Griel P, Mosser G, Coradin T, Jolivalt C. Synthesis of Hybrid Polyphenol/Hydroxyapatite Nanomaterials with Anti-Radical Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3588. [PMID: 36296776 PMCID: PMC9612319 DOI: 10.3390/nano12203588] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Plant-derived natural bioactive molecules are of great therapeutic potential but, so far, their application in nanomedicine has scarcely been studied. This work aimed at comparing two methodologies, i.e., adsorption and in situ incorporation, to prepare hybrid polyphenol/hydroxyapatite nanoparticles. Two flavonoids, baicalin and its aglycone derivative baicalein, and two phenolic acids derived from caffeic acid, rosmarinic and chlorogenic acids, were studied. Adsorption of these polyphenols on pre-formed hydroxyapatite nanoparticles did not modify particle size or shape and loading was less than 10% (w/w). In contrast, presence of polyphenols during the synthesis of nanoparticles significantly impacted and sometimes fully inhibited hydroxyapatite formation but recovered particles could exhibit higher loadings. For most hybrid particles, release profiles consisted of a 24 h burst effect followed by a slow release over 2 weeks. Antioxidant properties of the polyphenols were preserved after adsorption but not when incorporated in situ. These results provide fruitful clues for the valorization of natural bioactive molecules in nanomedicine.
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Affiliation(s)
- Estelle Palierse
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, 75005 Paris, France
| | - Sylvie Masse
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
| | - Guillaume Laurent
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
| | - Patrick Le Griel
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
| | - Gervaise Mosser
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
| | - Thibaud Coradin
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
| | - Claude Jolivalt
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, 75005 Paris, France
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3
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Antibacterial Activity and Drug Release of Ciprofloxacin Loaded PVA-nHAp Nanocomposite Coating on Ti-6Al-4 V. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02361-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Sobierajska P, Serwotka-Suszczak A, Targonska S, Szymanski D, Marycz K, Wiglusz RJ. Synergistic Effect of Toceranib and Nanohydroxyapatite as a Drug Delivery Platform-Physicochemical Properties and In Vitro Studies on Mastocytoma Cells. Int J Mol Sci 2022; 23:ijms23041944. [PMID: 35216060 PMCID: PMC8875076 DOI: 10.3390/ijms23041944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 02/07/2023] Open
Abstract
A new combination of Toceranib (Toc; 5-[(5Z)-(5-Fluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)methyl]-2,4-dimethyl-N-[2-(pyrrolidin-1-yl)ethyl]-1H-pyrrole-3-carboxamide) with nanohydroxyapatite (nHAp) was proposed as an antineoplastic drug delivery system. Its physicochemical properties were determined as crystallinity, grain size, morphology, zeta potential and hydrodynamic diameter as well as Toceranib release. The crystalline nanorods of nHAp were synthesised by the co-precipitation method, while the amorphous Toceranib was obtained by its conversion from the crystalline form during nHAp–Toc preparation. The surface interaction between both compounds was confirmed using Fourier-transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV–Vis) and scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS). The nHAp–Toc showed a slower and prolonged release of Toceranib. The release behaviour was affected by hydrodynamic size, surface interaction and the medium used (pH). The effectiveness of the proposed platform was tested by comparing the cytotoxicity of the drug combined with nHAp against the drug itself. The compounds were tested on NI-1 mastocytoma cells using the Alamar blue colorimetric technique. The obtained results suggest that the proposed platform shows high efficiency (the calculated IC50 is 4.29 nM), while maintaining the specificity of the drug alone. Performed analyses confirmed that nanohydroxyapatite is a prospective drug carrier and, when Toceranib-loaded, may be an idea worth developing with further research into therapeutic application in the treatment of canine mast cell tumour.
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Affiliation(s)
- Paulina Sobierajska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (D.S.)
- Correspondence: (P.S.); (R.J.W.)
| | - Anna Serwotka-Suszczak
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, C. K. Norwida 27B, 50-375 Wroclaw, Poland; (A.S.-S.); (K.M.)
| | - Sara Targonska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (D.S.)
| | - Damian Szymanski
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (D.S.)
| | - Krzysztof Marycz
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, C. K. Norwida 27B, 50-375 Wroclaw, Poland; (A.S.-S.); (K.M.)
| | - Rafal J. Wiglusz
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (D.S.)
- Correspondence: (P.S.); (R.J.W.)
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5
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Cheng X, Long D, Chen L, Jansen JA, Leeuwenburgh SC, Yang F. Electrophoretic deposition of silk fibroin coatings with pre-defined architecture to facilitate precise control over drug delivery. Bioact Mater 2021; 6:4243-4254. [PMID: 33997504 PMCID: PMC8102429 DOI: 10.1016/j.bioactmat.2021.03.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/09/2021] [Accepted: 03/29/2021] [Indexed: 12/29/2022] Open
Abstract
The therapeutic precision and clinical applicability of drug-eluting coatings can be substantially improved by facilitating tunable drug delivery. However, the design of coatings which allows for precise control over drug release kinetics is still a major challenge. Here, a double-layered silk fibroin (SF) coating system was constructed by sequential electrophoretic deposition. A mixture of dissolved Bombyx mori SF (bmSF) molecules and pre-made bmSF nanospheres at different ratios was deposited as under-layer. Subsequently, this underlayer was covered by a top-layer comprising Antheraea pernyi SF (apSF) molecules (rich in arginylglycylaspartic acid, RGD) to improve the cellular response of the resulting double-layered coatings. Additionally, model drug doxycycline was either pre-mixed with dissolved bmSF molecules or pre-loaded into pre-made bmSF nanospheres at the same amount before their mixing and deposition. The thickness and nanosphere content of the under-layer architecture were proportional to the deposition time and nanosphere concentration in precursor mixtures, respectively. The surface topography, wettability, degradation rate and adhesion strength were comparable within the double-layered coating system. As expected, RGD-rich apSF top-layer improved cell adhesion, spreading and proliferation compared with bmSF top-layer. Furthermore, the amount and duration of drug release increased linearly with increasing nanosphere concentration at fixed deposition time, whereas drug release amount increased linearly with increasing deposition time. These results indicate that the dosage and kinetics of loaded drugs can be quantitatively tailored by altering nanosphere concentration and deposition time as main processing parameters. Overall, this study illustrates the strong potential of pre-defining coating architecture to facilitate control over drug delivery.
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Affiliation(s)
- Xian Cheng
- Department of Dentistry-Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Philips van Leydenlaan 25, 6525, EX Nijmegen, the Netherlands
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210029, PR China
| | - Dingpei Long
- Institute for Biomedical Sciences, Center for Diagnostics & Therapeutics, Georgia State University, Atlanta, GA, 30302, USA
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, PR China
| | - John A. Jansen
- Department of Dentistry-Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Philips van Leydenlaan 25, 6525, EX Nijmegen, the Netherlands
| | - Sander C.G. Leeuwenburgh
- Department of Dentistry-Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Philips van Leydenlaan 25, 6525, EX Nijmegen, the Netherlands
| | - Fang Yang
- Department of Dentistry-Biomaterials, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Philips van Leydenlaan 25, 6525, EX Nijmegen, the Netherlands
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6
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β-Cyclodextrin functionalized polyurethane nano fibrous membranes for drug delivery. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102759] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Abdul Halim NA, Hussein MZ, Kandar MK. Nanomaterials-Upconverted Hydroxyapatite for Bone Tissue Engineering and a Platform for Drug Delivery. Int J Nanomedicine 2021; 16:6477-6496. [PMID: 34584412 PMCID: PMC8464594 DOI: 10.2147/ijn.s298936] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 06/30/2021] [Indexed: 01/03/2023] Open
Abstract
Hydroxyapatite is a basic mineral that is very important to the human body framework. Recently, synthetic hydroxyapatite (SHA) and its nanocomposites (HANs) are the subject of intense research for bone tissue engineering and drug loading system applications, due to their unique, tailor-made characteristics, as well as their similarities with the bone mineral component in the human body. Although hydroxyapatite has good biocompatibility and osteoconductive characteristics, the poor mechanical strength restricts its use in non-load-bearing applications. Consequently, a rapid increase in reinforcing of other nanomaterials into hydroxyapatite for the formation of HANs could improve the mechanical properties. Most of the research reported on the success of other nanomaterials such as metals, ceramics and natural/synthetic polymers as additions into hydroxyapatite is reviewed. In addition, this review also focuses on the addition of various substances into hydroxyapatite for the formation of various HANs and at the same time to try to minimize the limitations so that various bone tissue engineering and drug loading system applications can be exploited.
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Affiliation(s)
- Nur Akma Abdul Halim
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Seri Kembangan, Selangor Darul Ehsan, 43400, Malaysia
| | - Mohd Zobir Hussein
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Seri Kembangan, Selangor Darul Ehsan, 43400, Malaysia
| | - Mohd Khairuddin Kandar
- Department of Orthopedics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Selangor Darul Ehsan, 43400, Malaysia
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8
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Palierse E, Hélary C, Krafft JM, Génois I, Masse S, Laurent G, Alvarez Echazu MI, Selmane M, Casale S, Valentin L, Miche A, Chan BC, Lau CB, Ip M, Desimone MF, Coradin T, Jolivalt C. Baicalein-modified hydroxyapatite nanoparticles and coatings with antibacterial and antioxidant properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 118:111537. [DOI: 10.1016/j.msec.2020.111537] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/31/2020] [Accepted: 09/17/2020] [Indexed: 12/11/2022]
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9
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Biphasic composite of calcium phosphate-based mesoporous silica as a novel bone drug delivery system. Drug Deliv Transl Res 2020; 10:455-470. [PMID: 31820299 PMCID: PMC7066108 DOI: 10.1007/s13346-019-00686-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We reported the new biphasic composites of calcium phosphate and mesoporous silica material (CaP@MSi) in the form of powders and pellets as a potential bone drug delivery system for doxycycline hydrochloride (DOX). The CaP@MSi powders were synthesized by cationic surfactant-templating method. The effects of 10, 20, and 30% CaP content in the CaP@MSi powders on the molecular surface structure, the cytotoxicity against osteoblast cells in vitro, and the mineralization potential in simulated body fluid were investigated. The CaP@MSi characterized by the highest mineralization potential (30% CaP content) were used for DOX adsorption and pelletization process. The CaP which precipitated in the CaP@MSi composites was characterized as calcium-deficient with the Ca:P molar ratio between 1.0 and 1.2. The cytotoxicity assays demonstrated that the CaP content in MSi increases osteoblasts viability indicating the CaP@MSi (30% CaP content) as the most biocompatible. The combination of CaP and MSi was an effective strategy to improve the mineralization potential of parent material. Upon immersion in simulated body fluid, the CaP of composite converted into the bone-like apatite. The obtained pellets preserved the mineralization potential of CaP@MSi and provided the prolonged 5-day DOX release. The obtained biphasic CaP@MSi composites seem to have an application potential as bone-specific drug delivery system.
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10
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Lee SY, Kim J, Oh S, Jung G, Jeong KJ, Tan Tran V, Hwang D, Kim S, Song JJ, Suh MW, Lee J, Koo JW. Contralateral spreading of substances following intratympanic nanoparticle-conjugated gentamicin injection in a rat model. Sci Rep 2020; 10:18636. [PMID: 33122804 PMCID: PMC7596480 DOI: 10.1038/s41598-020-75725-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/02/2020] [Indexed: 11/23/2022] Open
Abstract
This study was performed to investigate the Eustachian tube as a potential route for contralateral spreading following intratympanic nanoparticle (NP)-conjugated gentamicin injection in a rat model. Sprague–Dawley rats were divided into three groups and substances were injected in the right ear: group 1 (fluorescent magnetic nanoparticles [F-MNPs], n = 4), group 2 (F-MNP-conjugated gentamicin [F-MNP@GM], n = 2), and control group (no injections, n = 2). T2-weighted sequences corresponding to the regions of interest at 1, 2, and 3 h after intratympanic injection were evaluated, along with immunostaining fluorescence of both side cochlea. The heterogeneous signal intensity of F-MNPs and F-MNP@GM on T2-weighted images, observed in the ipsilateral tympanum, was also detected in the contralateral tympanum in 4 out of 6 rats, recapitulating fluorescent nanoparticles in the contralateral cochlear hair cells. Computational simulations demonstrate the contralateral spreading of particles by gravity force following intratympanic injection in a rat model. The diffusion rate of the contralateral spreading relies on the sizes and surface charges of particles. Collectively, the Eustachian tube could be a route for contralateral spreading following intratympanic injection. Caution should be taken when using the contralateral ear as a control study investigating inner-ear drug delivery through the transtympanic approach.
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Affiliation(s)
- Sang-Yeon Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82, Gumi-ro 173, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea.,Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Jeonghyo Kim
- Department of Chemistry and Department of Chemical Enginnering and Applied Chemistry, Chungnam National University, Daejon, 34134, Republic of Korea
| | - Sangjin Oh
- Department of Chemistry and Department of Chemical Enginnering and Applied Chemistry, Chungnam National University, Daejon, 34134, Republic of Korea
| | - Gaon Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82, Gumi-ro 173, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea
| | - Ki-Jae Jeong
- Department of Cogno-Mechatronics Engineering, Busan National University, Busan, 46241, Republic of Korea
| | - Van Tan Tran
- Department of Chemistry and Department of Chemical Enginnering and Applied Chemistry, Chungnam National University, Daejon, 34134, Republic of Korea.,Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi, 10000, Vietnam
| | - Dajeong Hwang
- Department of Chemistry and Department of Chemical Enginnering and Applied Chemistry, Chungnam National University, Daejon, 34134, Republic of Korea
| | - SungIl Kim
- AMO LIFE SCIENCE Co., Ltd., Seoul, 06527, Republic of Korea
| | - Jae-Jin Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82, Gumi-ro 173, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea
| | - Myung-Whan Suh
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Jaebeom Lee
- Department of Chemistry and Department of Chemical Enginnering and Applied Chemistry, Chungnam National University, Daejon, 34134, Republic of Korea.
| | - Ja-Won Koo
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82, Gumi-ro 173, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea.
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11
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Stevanović M, Djošić M, Janković A, Kojić V, Vukašinović-Sekulić M, Stojanović J, Odović J, Crevar Sakač M, Kyong Yop R, Mišković-Stanković V. Antibacterial graphene-based hydroxyapatite/chitosan coating with gentamicin for potential applications in bone tissue engineering. J Biomed Mater Res A 2020; 108:2175-2189. [PMID: 32323414 DOI: 10.1002/jbm.a.36974] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 03/24/2020] [Accepted: 03/28/2020] [Indexed: 12/29/2022]
Abstract
Electrophoretic deposition process (EPD) was successfully used for obtaining graphene (Gr)-reinforced composite coating based on hydroxyapatite (HAP), chitosan (CS), and antibiotic gentamicin (Gent), from aqueous suspension. The deposition process was performed as a single step process at a constant voltage (5 V, deposition time 12 min) on pure titanium foils. The influence of graphene was examined through detailed physicochemical and biological characterization. Fourier transform infrared spectroscopy, field emission scanning electron microscopy, thermogravimetric analysis, X-ray diffraction, Raman, and X-ray photoelectron analyses confirmed the formation of composite HAP/CS/Gr and HAP/CS/Gr/Gent coatings on Ti. Obtained coatings had porous, uniform, fracture-free surfaces, suggesting strong interfacial interaction between HAP, CS, and Gr. Large specific area of graphene enabled strong bonding with chitosan, acting as nanofiller throughout the polymer matrix. Gentamicin addition strongly improved the antibacterial activity of HAP/CS/Gr/Gent coating that was confirmed by antibacterial activity kinetics in suspension and agar diffusion testing, while results indicated more pronounced antibacterial effect against Staphylococcus aureus (bactericidal, viable cells number reduction >3 logarithmic units) compared to Escherichia coli (bacteriostatic, <3 logarithmic units). MTT assay indicated low cytotoxicity (75% cell viability) against MRC-5 and L929 (70% cell viability) tested cell lines, indicating good biocompatibility of HAP/CS/Gr/Gent coating. Therefore, electrodeposited HAP/CS/Gr/Gent coating on Ti can be considered as a prospective material for bone tissue engineering as a hard tissue implant.
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Affiliation(s)
- Milena Stevanović
- Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
| | - Marija Djošić
- Institute for Technology of Nuclear and Other Mineral Raw Materials (ITNMS), Belgrade, Serbia
| | - Ana Janković
- Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
| | - Vesna Kojić
- Oncology Institute of Vojvodina, Faculty of Medicine, University of Novi Sad, Sremska Kamenica, Serbia
| | | | - Jovica Stojanović
- Institute for Technology of Nuclear and Other Mineral Raw Materials (ITNMS), Belgrade, Serbia
| | - Jadranka Odović
- Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | | | - Rhee Kyong Yop
- Department of Mechanical Engineering, Kyung Hee University, Yongin, South Korea
| | - Vesna Mišković-Stanković
- Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia.,Department of Mechanical Engineering, Kyung Hee University, Yongin, South Korea
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12
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Batul R, Bhave M, J. Mahon P, Yu A. Polydopamine Nanosphere with In-Situ Loaded Gentamicin and Its Antimicrobial Activity. Molecules 2020; 25:E2090. [PMID: 32365745 PMCID: PMC7250025 DOI: 10.3390/molecules25092090] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/25/2020] [Accepted: 04/25/2020] [Indexed: 12/14/2022] Open
Abstract
The mussel inspired polydopamine has acquired great relevance in the field of nanomedicines, owing to its incredible physicochemical properties. Polydopamine nanoparticles (PDA NPs) due to their low cytotoxicity, high biocompatibility and ready biodegradation have already been widely investigated in various drug delivery, chemotherapeutic, and diagnostic applications. In addition, owing to its highly reactive nature, it possesses a very high capability for loading drugs and chemotherapeutics. Therefore, the loading efficiency of PDA NPs for an antibiotic i.e., gentamicin (G) has been investigated in this work. For this purpose, an in-situ polymerization method was studied to load the drug into PDA NPs using variable drug: monomer ratios. Scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) confirmed the successful loading of drug within PDA NPs, mainly via hydrogen bonding between the amine groups of gentamicin and the hydroxyl groups of PDA. The loading amount was quantified by liquid chromatography-mass spectrometry (LC-MS) and the highest percentage loading capacity was achieved for G-PDA prepared with drug to monomer ratio of 1:1. Moreover, the gentamicin loaded PDA NPs were tested in a preliminary antibacterial evaluation using the broth microdilution method against both Gram-(+) Staphylococcus aureus and Gram-(-) Pseudomonas aeruginosa microorganisms. The highest loaded G-PDA sample exhibited the lowest minimum inhibitory concentration and minimum bactericidal concentration values. The developed gentamicin loaded PDA is very promising for long term drug release and treating various microbial infections.
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Affiliation(s)
| | | | | | - Aimin Yu
- Department of Chemistry and Biotechnology, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia; (R.B.); (M.B.); (P.J.M.)
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13
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Abstract
Surface modification of orthopedic and dental implants has been demonstrated to be an effective strategy to accelerate bone healing at early implantation times. Among the different alternatives, coating implants with a layer of hydroxyapatite (HAp) is one of the most used techniques, due to its excellent biocompatibility and osteoconductive behavior. The composition and crystalline structure of HAp allow for numerous ionic substitutions that provide added value, such as antibiotic properties or osteoinduction. In this article, we will review and critically analyze the most important advances in the field of substituted hydroxyapatite coatings. In recent years substituted HAp coatings have been deposited not only on orthopedic prostheses and dental implants, but also on macroporous scaffolds, thus expanding their applications towards bone regeneration therapies. Besides, the capability of substituted HAps to immobilize proteins and growth factors by non-covalent interactions has opened new possibilities for preparing hybrid coatings that foster bone healing processes. Finally, the most important in vivo outcomes will be discussed to understand the prospects of substituted HAp coatings from a clinical point of view.
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Affiliation(s)
- Daniel Arcos
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital 12 de Octubre i + 12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain. and CIBER de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - María Vallet-Regí
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital 12 de Octubre i + 12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain. and CIBER de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Spain
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14
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Pang Q, Lou D, Li S, Wang G, Qiao B, Dong S, Ma L, Gao C, Wu Z. Smart Flexible Electronics-Integrated Wound Dressing for Real-Time Monitoring and On-Demand Treatment of Infected Wounds. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902673. [PMID: 32195091 PMCID: PMC7080536 DOI: 10.1002/advs.201902673] [Citation(s) in RCA: 181] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/06/2019] [Indexed: 05/11/2023]
Abstract
As the most frequent wound complication, infection has become a major clinical challenge in wound management. To overcome the "Black Box" status of the wound-healing process, next-generation wound dressings with the abilities of real-time monitoring, diagnosis during early stages, and on-demand therapy has attracted considerable attention. Here, by combining the emerging development of bioelectronics, a smart flexible electronics-integrated wound dressing with a double-layer structure, the upper layer of which is polydimethylsiloxane-encapsulated flexible electronics integrated with a temperature sensor and ultraviolet (UV) light-emitting diodes, and the lower layer of which is a UV-responsive antibacterial hydrogel, is designed. This dressing is expected to provide early infection diagnosis via real-time wound-temperature monitoring by the integrated sensor and on-demand infection treatment by the release of antibiotics from the hydrogel by in situ UV irradiation. The integrated system possesses good flexibility, excellent compatibility, and high monitoring sensitivity and durability. Animal experiment results demonstrate that the integrated system is capable of monitoring wound status in real time, detecting bacterial infection and providing effective treatment on the basis of need. This proof-of-concept research holds great promise in developing new strategies to significantly improve wound management and other pathological diagnoses and treatments.
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Affiliation(s)
- Qian Pang
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Dong Lou
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Shijian Li
- College of Computer Science and TechnologyZhejiang UniversityHangzhou310027China
| | - Guangming Wang
- Key Laboratory of Advanced Micro/Nano Electronic Devices and Smart Systems of ZhejiangCollege of Information Science and Electronic EngineeringZhejiang UniversityHangzhou310027China
| | - Bianbian Qiao
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Shurong Dong
- Key Laboratory of Advanced Micro/Nano Electronic Devices and Smart Systems of ZhejiangCollege of Information Science and Electronic EngineeringZhejiang UniversityHangzhou310027China
| | - Lie Ma
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Zhaohui Wu
- College of Computer Science and TechnologyZhejiang UniversityHangzhou310027China
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15
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Qiao B, Pang Q, Yuan P, Luo Y, Ma L. Smart wound dressing for infection monitoring and NIR-triggered antibacterial treatment. Biomater Sci 2020; 8:1649-1657. [DOI: 10.1039/c9bm02060h] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Hydrogel-based wound dressings can monitor infection via pH-responsive FRET changes and provide on-demand antibacterial treatment via NIR-triggered antibiotic release.
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Affiliation(s)
- Bianbian Qiao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Qian Pang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Peiqi Yuan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Yilun Luo
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Lie Ma
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
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16
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Memar MY, Adibkia K, Farajnia S, Kafil HS, Maleki Dizaj S, Ghotaslou R. Biocompatibility, cytotoxicity and antimicrobial effects of gentamicin-loaded CaCO3 as a drug delivery to osteomyelitis. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101307] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Ji XJ, Gao L, Liu JC, Wang J, Cheng Q, Li JP, Li SQ, Zhi KQ, Zeng RC, Wang ZL. Corrosion resistance and antibacterial properties of hydroxyapatite coating induced by gentamicin-loaded polymeric multilayers on magnesium alloys. Colloids Surf B Biointerfaces 2019; 179:429-436. [PMID: 31005002 DOI: 10.1016/j.colsurfb.2019.04.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/12/2019] [Accepted: 04/13/2019] [Indexed: 01/07/2023]
Abstract
As a result of their good biocompatibility, bioactivity, and mechanical properties, magnesium (Mg) alloys have received considerable attention as next generation biodegradable implants. Herein, in order to achieve a proper degradation rate and good antibacterial ability, we reported a novel hydroxyapatite coating induced by gentamicin (GS)-loaded polymeric multilayers for the surface treatment of the Mg alloy. The coating was characterized by X-ray diffraction, fourier transform infrared spectroscopy and scanning electron microscopy. The as-prepared hydroxyapatite coating showed the compact morphology and a well-crystallized apatite structure. This coating could improve the adhesion strength and reduce the corrosion rate of the substrate in simulated body fluid solution. Meanwhile, the drug release and antibacterial experiments demonstrated that the GS loaded specimen revealed a significant antimicrobial performance toward Staphylococcus aureus and had a prolonged release profile of GS, which would be helpful to the long-term bactericidal activity of the Mg implant. This coating showed acceptable biocompatibility via MTT assay and Live/dead staining. Thus, the multilayers-hydroxyapatite coated Mg alloy could improve the corrosion resistance and biocompatibility while delivering vital drugs to the site of implantation.
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Affiliation(s)
- Xiao-Jing Ji
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Ling Gao
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, China; Key Lab of Oral Clinical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, China
| | - Jia-Cheng Liu
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, China; Key Lab of Oral Clinical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, China; School of Stomatology, Qingdao University, Qingdao, Shandong, 266071, China
| | - Jing Wang
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Qiang Cheng
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Jian-Peng Li
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Shuo-Qi Li
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.
| | - Ke-Qian Zhi
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, China; Key Lab of Oral Clinical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, China.
| | - Rong-Chang Zeng
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.
| | - Zhen-Lin Wang
- College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400065, China
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18
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Sarıgöl E, Ekizoğlu M, Bozdağ Pehlivan S, Bodur E, Sağıroğlu M, Çalış S. A thermosensitive gel loaded with an enzyme and an antibiotic drug for the treatment of periprosthetic joint infection. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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19
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Mohan Raj R, Priya P, Raj V. Gentamicin-loaded ceramic-biopolymer dual layer coatings on the Ti with improved bioactive and corrosion resistance properties for orthopedic applications. J Mech Behav Biomed Mater 2018; 82:299-309. [PMID: 29649658 DOI: 10.1016/j.jmbbm.2017.12.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/20/2017] [Accepted: 12/29/2017] [Indexed: 11/17/2022]
Abstract
In orthopedic surgery, osteomyelitis (bone infection) is one of the most serious complications in the last few decades and the resident drug delivery is the key strategy to overcome this issue. Combination of bioactive materials with antibiotics is broadly developed for the handling of osteomyelitis which plays a dual role as bone cell growth and as local drug delivery systems for antibiotic delivery. TiO2-SiO2 mixtures were fabricated on Ti alloy by anodization method. Chitosan-Lysine (CS-LY) biopolymers were coated on composites by electrodeposition method and followed by gentamicin sulfate (GS) which was loaded as a model drug. The layers were characterized by AT-FTIR, XRD, FE-SEM and EDX methods. The mechanical, anticorrosion, antimicrobial effects and biocompatibility of the glazes were considered. In addition, drug loading, continued and prolonged liberation behaviors of GS from the fabricated coating were studied. The apatite development ability and cell viability are outstanding for CS-LY-3 coated composites. In vitro cell experimentations indicate that osteoblasts show good adhesion and high growth rates for CS-LY-3 coated TiO2-SiO2 composite substrate. In conclusion, the surface modification of TiO2-SiO2/CS-LY-3 coated Ti alloy could be used as a carrier for GS, not only to eradicate the osteomyelitis caused by Gram-negative and Gram-positive bacteria, but also to repair the bone defect initiated by the infection owing to the tunable nanocomposite degradation.
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Affiliation(s)
- R Mohan Raj
- Department of Chemistry, J.K.K.Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India.
| | - P Priya
- Advanced Materials Research Laboratory, Department of Chemistry, Periyar University, Sale 636011, Tamil Nadu, India
| | - V Raj
- Advanced Materials Research Laboratory, Department of Chemistry, Periyar University, Sale 636011, Tamil Nadu, India; Center for Nanoscience and Nanotechnology, Periyar University, Sale 636011, Tamil Nadu, India.
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20
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Pan X, Chen S, Li D, Rao W, Zheng Y, Yang Z, Li L, Guan X, Chen Z. The Synergistic Antibacterial Mechanism of Gentamicin-Loaded CaCO 3 Nanoparticles. Front Chem 2018; 5:130. [PMID: 29410953 PMCID: PMC5787095 DOI: 10.3389/fchem.2017.00130] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Accepted: 12/22/2017] [Indexed: 11/13/2022] Open
Abstract
In the present study, we used CaCO3 nanoparticles (CCNPs) as carriers to assess the physicochemical characteristics and antibacterial effect of gentamicin sulfate (GS)-loaded CCNPs (CGPs). The results indicated that CCNPs had relatively regular chain-like structure, and the size of the crystallites was around 62.5 nm. FT-IR analysis indicated that the GS could effectively load onto CCNPs. Meanwhile, the dosage of CCNPs would affect the drug loading and entrapment efficiency of GS. CCNPs could prolong the release of GS, and the complete release of GS from CCNPs was extended up to 24 h. Additionally, CCNPs could obviously increase the antibacterial effect of GS. The zeta potential analysis and microscopic investigations indicated that the adsorbed CCNPs could increase the damage level of bacterial cell wall and enhance the permeability of cell membranes, leading to increased bacterial death.
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Affiliation(s)
- Xiaohong Pan
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education and Pharmaceutical Engineering, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China.,Fujian-Taiwan Joint Center for Ecological Control of Crop Pests, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Saili Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education and Pharmaceutical Engineering, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Dongzhe Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education and Pharmaceutical Engineering, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Wenhua Rao
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education and Pharmaceutical Engineering, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yilin Zheng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education and Pharmaceutical Engineering, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhaoyuan Yang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education and Pharmaceutical Engineering, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Lan Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education and Pharmaceutical Engineering, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xiong Guan
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education and Pharmaceutical Engineering, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China.,Fujian-Taiwan Joint Center for Ecological Control of Crop Pests, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhi Chen
- College of Resources and Environmental Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
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21
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Illangakoon UE, Mahalingam S, Matharu RK, Edirisinghe M. Evolution of Surface Nanopores in Pressurised Gyrospun Polymeric Microfibers. Polymers (Basel) 2017; 9:polym9100508. [PMID: 30965811 PMCID: PMC6418950 DOI: 10.3390/polym9100508] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/02/2017] [Accepted: 10/06/2017] [Indexed: 01/09/2023] Open
Abstract
The selection of a solvent or solvent system and the ensuing polymer–solvent interactions are crucial factors affecting the preparation of fibers with multiple morphologies. A range of poly(methylmethacrylate) fibers were prepared by pressurised gyration using acetone, chloroform, N,N-dimethylformamide (DMF), ethyl acetate and dichloromethane as solvents. It was found that microscale fibers with surface nanopores were formed when using chloroform, ethyl acetate and dichloromethane and poreless fibers were formed when using acetone and DMF as the solvent. These observations are explained on the basis of the physical properties of the solvents and mechanisms of pore formation. The formation of porous fibers is caused by many solvent properties such as volatility, solubility parameters, vapour pressure and surface tension. Cross-sectional images show that the nanopores are only on the surface of the fibers and they were not inter-connected. Further, the results show that fibers with desired nanopores (40–400 nm) can be prepared by carefully selecting the solvent and applied pressure in the gyration process.
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Affiliation(s)
- U Eranka Illangakoon
- Department of Mechanical Engineering, University College London, London WC1E 7JE, UK.
| | | | - Rupy K Matharu
- Department of Mechanical Engineering, University College London, London WC1E 7JE, UK.
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, London WC1E 7JE, UK.
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22
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Reshmi CR, Menon T, Binoy A, Mishra N, Elyas KK, Sujith A. Poly(L-lactide-co-caprolactone)/collagen electrospun mat: Potential for wound dressing and controlled drug delivery. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1252357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- C. R. Reshmi
- Material Research Laboratory, Department of Chemistry, National Institute of Technology Calicut, Calicut, India
| | - Tara Menon
- Department of Biotechnology, University of Calicut, Calicut, India
| | - Anupama Binoy
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Kollam, India
| | - Nandita Mishra
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Kollam, India
| | - K. K. Elyas
- Department of Biotechnology, University of Calicut, Calicut, India
| | - A. Sujith
- Material Research Laboratory, Department of Chemistry, National Institute of Technology Calicut, Calicut, India
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23
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Boulahneche S, Jijie R, Barras A, Chekin F, Singh SK, Bouckaert J, Medjram MS, Kurungot S, Boukherroub R, Szunerits S. On demand electrochemical release of drugs from porous reduced graphene oxide modified flexible electrodes. J Mater Chem B 2017; 5:6557-6565. [DOI: 10.1039/c7tb00687j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite the advantages of an electrochemical control of drug release, only a handful of electrochemical-based release systems have been developed so far.
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Affiliation(s)
| | - Roxana Jijie
- Univ. Lille
- CNRS
- Centrale Lille
- ISEN
- Univ. Valenciennes
| | | | | | - Santosh K. Singh
- Physical and Materials Chemistry Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | - Julie Bouckaert
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF)
- UMR 8576 du CNRS et Université Lille
- 59658 Villeneuve d'Ascq
- France
| | - Mohamed Salah Medjram
- Laboratoire de Génie Chimique et Environnement Skikda (LGCES)
- Université de 20 août
- 1955-Skikda
- Algeria
| | - Sreekumar Kurungot
- Physical and Materials Chemistry Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research
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24
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Townsend L, Williams RL, Anuforom O, Berwick MR, Halstead F, Hughes E, Stamboulis A, Oppenheim B, Gough J, Grover L, Scott RAH, Webber M, Peacock AFA, Belli A, Logan A, de Cogan F. Antimicrobial peptide coatings for hydroxyapatite: electrostatic and covalent attachment of antimicrobial peptides to surfaces. J R Soc Interface 2017; 14:20160657. [PMID: 28077764 PMCID: PMC5310730 DOI: 10.1098/rsif.2016.0657] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 12/06/2016] [Indexed: 01/19/2023] Open
Abstract
The interface between implanted devices and their host tissue is complex and is often optimized for maximal integration and cell adhesion. However, this also gives a surface suitable for bacterial colonization. We have developed a novel method of modifying the surface at the material-tissue interface with an antimicrobial peptide (AMP) coating to allow cell attachment while inhibiting bacterial colonization. The technology reported here is a dual AMP coating. The dual coating consists of AMPs covalently bonded to the hydroxyapatite surface, followed by deposition of electrostatically bound AMPs. The dual approach gives an efficacious coating which is stable for over 12 months and can prevent colonization of the surface by both Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Leigh Townsend
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK
| | - Richard L Williams
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
| | - Olachi Anuforom
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK
| | - Matthew R Berwick
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, UK
| | - Fenella Halstead
- University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TH, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
| | - Erik Hughes
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK
| | - Artemis Stamboulis
- School of Metallurgy and Materials, University of Birmingham, Birmingham B15 2TT, UK
| | - Beryl Oppenheim
- University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TH, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
| | - Julie Gough
- School of Materials, University of Manchester, Manchester M1 7HS, UK
| | - Liam Grover
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
| | - Robert A H Scott
- Royal Centre for Defence Medicine, Birmingham B15 2TH, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
| | - Mark Webber
- Institute of Microbiology and Infection, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
| | - Anna F A Peacock
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, UK
| | - Antonio Belli
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
| | - Ann Logan
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
| | - Felicity de Cogan
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
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25
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Maleki Dizaj S, Lotfipour F, Barzegar-Jalali M, Zarrintan MH, Adibkia K. Physicochemical characterization and antimicrobial evaluation of gentamicin-loaded CaCO3 nanoparticles prepared via microemulsion method. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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26
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Sun MH, Huang SZ, Chen LH, Li Y, Yang XY, Yuan ZY, Su BL. Applications of hierarchically structured porous materials from energy storage and conversion, catalysis, photocatalysis, adsorption, separation, and sensing to biomedicine. Chem Soc Rev 2016; 45:3479-563. [DOI: 10.1039/c6cs00135a] [Citation(s) in RCA: 964] [Impact Index Per Article: 120.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A comprehensive review of the recent progress in the applications of hierarchically structured porous materials is given.
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Affiliation(s)
- Ming-Hui Sun
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Shao-Zhuan Huang
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Li-Hua Chen
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Yu Li
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Xiao-Yu Yang
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Zhong-Yong Yuan
- Collaborat Innovat. Ctr. Chem. Sci. & Engn. Tianjin
- Key Lab. Adv. Energy Mat. Chem
- Minist. Educ
- Coll. Chem
- Nankai Univ
| | - Bao-Lian Su
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- China
- Laboratory of Inorganic Materials Chemistry (CMI)
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