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Nezadi M, Keshvari H, Shokrolahi F, Shokrollahi P. Injectable, self-healing hydrogels based on gelatin, quaternized chitosan, and laponite as localized celecoxib delivery system for nucleus pulpous repair. Int J Biol Macromol 2024; 266:131337. [PMID: 38574911 DOI: 10.1016/j.ijbiomac.2024.131337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/19/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Utilization of injectable hydrogels stands as a paradigm of minimally invasive intervention in the context of intervertebral disc degeneration treatment. Restoration of nucleus pulposus (NP) function exerts a profound influence in alleviating back pain. This study introduces an innovative class of injectable shear-thinning hydrogels, founded on quaternized chitosan (QCS), gelatin (GEL), and laponite (LAP) with the capacity for sustained release of the anti-inflammatory drug, celecoxib (CLX). First, synthesis of Magnesium-Aluminum-Layered double hydroxide (LDH) was achieved through a co-precipitation methodology, as a carrier for celecoxib and a source of Mg ions. Intercalation of celecoxib within LDH layers (LDH-CLX) was verified through a battery of analytical techniques, including FTIR, XRD, SEM, EDAX, TGA and UV-visible spectroscopy confirmed a drug loading efficiency of 39.22 ± 0.09 % within LDH. Then, LDH-CLX was loaded in the optimal GEL-QCS-LAP hydrogel under physiological conditions. Release behavior (15 days profile), mechanical properties, swelling ratio, and degradation rate of the resulting composite were evaluated. A G* of 15-47 kPa was recorded for the hydrogel at 22-40 °C, indicating gel stability in this temperature range. Self-healing properties and injectability of the composite were proved by rheological measurements. Also, ex vivo injection into intervertebral disc of sheep, evidenced in situ forming and NP cavity filling behavior of the hydrogel. Support of GEL-QCS-LAP/LDH-CLX (containing mg2+ ions) for viability and proliferation (from ~94 % on day 1 to ~134 % on day 7) of NP cells proved using MTT assay, DAPI and Live/Dead assays. The hydrogel could significantly upregulate secretion of glycosaminoglycan (GAG, from 4.68 ± 0.1 to 27.54 ± 1.0 μg/ml), when LHD-CLX3% was loaded. We conclude that presence of mg2+ ion and celecoxib in the hydrogel can lead to creation of a suitable environment that encourages GAG secretion. In conclusion, the formulated hydrogel holds promise as a minimally invasive candidate for degenerative disc repair.
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Affiliation(s)
- Maryam Nezadi
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran; Department of Biomaterials, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Hamid Keshvari
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran.
| | - Fatemeh Shokrolahi
- Department of Biomaterials, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Parvin Shokrollahi
- Department of Biomaterials, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran.
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Zaher HT, Hefnawy MA, Medany SS, Kamel SM, Fadlallah SA. Synergetic effect of essential oils and calcium phosphate nanoparticles for enhancement the corrosion resistance of titanium dental implant. Sci Rep 2024; 14:1573. [PMID: 38238413 PMCID: PMC10796362 DOI: 10.1038/s41598-024-52057-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/12/2024] [Indexed: 01/22/2024] Open
Abstract
Calcium phosphate (CaPO4) coating is one of various methods that is used to modify the topography and the chemistry of Ti dental implant surface to solve sever oral problems that result from diseases, accidents, or even caries due to its biocompatibility. In this work, anodized (Ti-bare) was coated by CaPO4 prepared from amorphous calcium phosphate nanoparticles (ACP-NPs) and confirmed the structure by X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FT-IR) techniques. Ti-bare was coated by prepared CaPO4 through the casting process, and the morphology of Ti/CaPO4 was characterized by scanning electron microscope (SEM) where the nano-flakes shape of CaPO4 and measured to be 60 ~ 80 nm was confirmed. The stability of Ti-bare and coated Ti/CaPO4 was studied in a simulated saliva solution using electrochemical impedance spectroscopy (EIS) and linear polarization techniques to deduce their corrosion resistance. Furthermore, three essential oils (EO), Cumin, Thyme, and Coriander, were used to stimulate their synergistic effect with the CaPO4 coat to enhance the corrosion resistance of Ti implant in an oral environment. The fitting EIS parameters based on Rs [RctC]W circuit proved that the charge transfer resistance (Rct) of Ti/CaPO4 increased by 264.4, 88.2, and 437.5% for Cumin, Thyme, and Coriander, respectively, at 2% concentration.
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Affiliation(s)
- Heba Tarek Zaher
- Biotechnology Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Mahmoud A Hefnawy
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Shymaa S Medany
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - S M Kamel
- Oral Biology, October University for Modern Sciences and Art, MSA University, Giza, Egypt
| | - Sahar A Fadlallah
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt.
- Biotechnology Department, Faculty of Science, Cairo University, Giza, 12613, Egypt.
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Sharipova A, Zlotver I, Sosnik A, Rabkin E. Solid-State Dewetting of Thin Au Films for Surface Functionalization of Biomedical Implants. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7524. [PMID: 38138670 PMCID: PMC10744913 DOI: 10.3390/ma16247524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023]
Abstract
Biomaterial-centered infections of orthopedic implants remain a significant burden in the healthcare system due to sedentary lifestyles and an aging population. One approach to combat infections and improve implant osteointegration is functionalizing the implant surface with anti-infective and osteoinductive agents. In this framework, Au nanoparticles are produced on the surface of Ti-6Al-4V medical alloy by solid-state dewetting of 5 nm Au film and used as the substrate for the conjugation of a model antibiotic vancomycin via a mono-thiolated poly(ethylene glycol) linker. Produced Au nanoparticles on Ti-6Al-4V surface are equiaxed with a mean diameter 19.8 ± 7.2 nm, which is shown by high-resolution scanning electron microscopy and atomic force microscopy. The conjugation of the antibiotic vancomycin, 18.8 ± 1.3 nm-thick film, is confirmed by high resolution-scanning transmission electron microscopy and X-ray photoelectron spectroscopy. Overall, showing a link between the solid-state dewetting process and surface functionalization, we demonstrate a novel, simple, and versatile method for functionalization of implant surfaces.
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Affiliation(s)
- Aliya Sharipova
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
- Department of Bio- and Nanotechnology, Fraunhofer Institute for Ceramic Technologies and Systems IKTS, 01277 Dresden, Germany
| | - Ivan Zlotver
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
| | - Alejandro Sosnik
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
| | - Eugen Rabkin
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
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刘 鹏, 樊 博, 邹 磊, 吕 利, 高 秋. [Progress in antibacterial/osteogenesis dual-functional surface modification strategy of titanium-based implants]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2023; 37:1300-1313. [PMID: 37848328 PMCID: PMC10581867 DOI: 10.7507/1002-1892.202306025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/05/2023] [Accepted: 09/05/2023] [Indexed: 10/19/2023]
Abstract
Objective To review antibacterial/osteogenesis dual-functional surface modification strategy of titanium-based implants, so as to provide reference for subsequent research. Methods The related research literature on antibacterial/osteogenesis dual-functional surface modification strategy of titanium-based implants in recent years was reviewed, and the research progress was summarized based on different kinds of antibacterial substances and osteogenic active substances. Results At present, the antibacterial/osteogenesis dual-functional surface modification strategy of titanium-based implants includes: ① Combined coating strategy of antibiotics and osteogenic active substances. It is characterized in that antibiotics can be directly released around titanium-based implants, which can improve the bioavailability of drugs and reduce systemic toxicity. ② Combined coating strategy of antimicrobial peptides and osteogenic active substances. The antibacterial peptides have a wide antibacterial spectrum, and bacteria are not easy to produce drug resistance to them. ③ Combined coating strategy of inorganic antibacterial agent and osteogenic active substances. Metal ions or metal nanoparticles antibacterial agents have broad-spectrum antibacterial properties and various antibacterial mechanisms, but their high-dose application usually has cytotoxicity, so they are often combined with substances that osteogenic activity to reduce or eliminate cytotoxicity. In addition, inorganic coatings such as silicon nitride, calcium silicate, and graphene also have good antibacterial and osteogenic properties. ④ Combined coating strategy of metal organic frameworks/osteogenic active substances. The high specific surface area and porosity of metal organic frameworks can effectively package and transport antibacterial substances and bioactive molecules. ⑤ Combined coating strategy of organic substances/osteogenic active substancecs. Quaternary ammonium compounds, polyethylene glycol, N-haloamine, and other organic compounds have good antibacterial properties, and are often combined with hydroxyapatite and other substances that osteogenic activity. Conclusion The factors that affect the antibacterial and osteogenesis properties of titanium-based implants mainly include the structure and types of antibacterial substances, the structure and types of osteogenesis substances, and the coating process. At present, there is a lack of clinical verification of various strategies for antibacterial/osteogenesis dual-functional surface modification of titanium-based implants. The optimal combination, ratio, dose-effect mechanism, and corresponding coating preparation process of antibacterial substances and bone-active substances are needed to be constantly studied and improved.
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Affiliation(s)
- 鹏 刘
- 甘肃中医药大学第一临床医学院(兰州 730000)First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
- 中国人民解放军联勤保障部队第九四〇医院骨科中心(兰州 730000)Orthopaedic Center, the 940th Hospital of Chinese PLA Joint Logistics Support Force, Lanzhou Gansu, 730000, P. R. China
| | - 博 樊
- 甘肃中医药大学第一临床医学院(兰州 730000)First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 磊 邹
- 甘肃中医药大学第一临床医学院(兰州 730000)First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 利军 吕
- 甘肃中医药大学第一临床医学院(兰州 730000)First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 秋明 高
- 甘肃中医药大学第一临床医学院(兰州 730000)First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
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Durdu S, Cihan G, Yalcin E, Cavusoglu K, Altinkok A, Sagcan H, Yurtsever İ, Usta M. Surface characterization, electrochemical properties and in vitro biological properties of Zn-deposited TiO 2 nanotube surfaces. Sci Rep 2023; 13:11423. [PMID: 37452093 PMCID: PMC10349054 DOI: 10.1038/s41598-023-38733-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023] Open
Abstract
In this work, to improve antibacterial, biocompatible and bioactive properties of commercial pure titanium (cp-Ti) for implant applications, the Zn-deposited nanotube surfaces were fabricated on cp-Ti by using combined anodic oxidation (AO) and physical vapor deposition (PVD-TE) methods. Homogenous elemental distributions were observed through all surfaces. Moreover, Zn-deposited surfaces exhibited hydrophobic character while bare Ti surfaces were hydrophilic. Due to the biodegradable behavior of Zn on the nanotube surface, Zn-deposited nanotube surfaces showed higher corrosion current density than bare cp-Ti surface in SBF conditions as expected. In vitro biological properties such as cell viability, ALP activity, protein adsorption, hemolytic activity and antibacterial activity for Gram-positive and Gram-negative bacteria of all surfaces were investigated in detail. Cell viability, ALP activity and antibacterial properties of Zn-deposited nanotube surfaces were significantly improved with respect to bare cp-Ti. Moreover, hemolytic activity and protein adsorption of Zn-deposited nanotube surfaces were decreased. According to these results; a bioactive, biocompatible and antibacterial Zn-deposited nanotube surfaces produced on cp-Ti by using combined AO and PVD techniques can have potential for orthopedic and dental implant applications.
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Affiliation(s)
- Salih Durdu
- Industrial Engineering, Faculty of Engineering, Giresun University, Merkez, 28200, Giresun, Turkey.
- Mechanical Engineering, Giresun University, 28200, Giresun, Turkey.
| | - Gizem Cihan
- Department of Biology, Giresun University, 28200, Giresun, Turkey
| | - Emine Yalcin
- Department of Biology, Giresun University, 28200, Giresun, Turkey
| | | | - Atilgan Altinkok
- Turkish Naval Academy, National Defence University, 34940, Istanbul, Turkey
| | - Hasan Sagcan
- Department of Medical Laboratory Techniques, Istanbul Medipol University, Istanbul, Turkey
| | - İlknur Yurtsever
- Department of Medical Laboratory Techniques, Istanbul Medipol University, Istanbul, Turkey
- Pharmacology and Toxicology Department, Boonshoft School of Medicine Ohio, Wright State University, Dayton, USA
| | - Metin Usta
- Materials Science and Engineering, Gebze Technical University, 41400, Gebze, Turkey
- Aluminum Research Center (GTU-AAUM), Gebze Technical University, 41400, Gebze, Turkey
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Durdu S, Yalçin E, Altinkök A, Çavuşoğlu K. Characterization and investigation of electrochemical and biological properties of antibacterial silver nanoparticle-deposited TiO 2 nanotube array surfaces. Sci Rep 2023; 13:4699. [PMID: 36949171 PMCID: PMC10033515 DOI: 10.1038/s41598-023-31937-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 03/20/2023] [Indexed: 03/24/2023] Open
Abstract
The one of main reasons of the premature failure of Ti-based implants is infections. The metal- and metal oxide-based nanoparticles have very high potential on controlling of infections. In this work, the randomly distributed AgNPs-deposited onto well-ordered TiO2 nanotube surfaces were fabricated on titanium by anodic oxidation (AO) and electrochemical deposition (ED) processes. AgNPs-deposited nanotube surfaces, which is beneficial for bone tissue growth exhibited hydrophilic behaviors. Moreover, the AgNPs-deposited nanotube surfaces, which prevent the leaching of metallic Ti ions from the implant surface, indicated great corrosion resistance under SBF conditions. The electrochemical corrosion resistance of AgNPs-deposited nanotube surfaces was improved up to about 145% compared to bare Gr2 surface. The cell viability of AgNPs-deposited nanotube surfaces was improved. Importantly, the AgNPs-deposited nanotube surfaces exhibited antibacterial activity for Gram-positive and Gram-negative bacteria. Eventually, it can be concluded that the AgNPs-deposited nanotube surfaces possess high stability for long-term usage of implant applications.
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Affiliation(s)
- Salih Durdu
- Industrial Engineering, Giresun University, Faculty of Engineering, 28200, Giresun, Turkey.
| | - Emine Yalçin
- Department of Biology, Giresun University, Faculty of Science, 28200, Giresun, Turkey
| | - Atilgan Altinkök
- Turkish Naval Academy, National Defence University, 34940, Istanbul, Turkey
| | - Kültiğin Çavuşoğlu
- Department of Biology, Giresun University, Faculty of Science, 28200, Giresun, Turkey.
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Pandey LM. Design of Biocompatible and Self-antibacterial Titanium Surfaces for Biomedical Applications. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2022. [DOI: 10.1016/j.cobme.2022.100423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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