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Malheiros SS, Nagay BE, Bertolini MM, de Avila ED, Shibli JA, Souza JGS, Barão VAR. Biomaterial engineering surface to control polymicrobial dental implant-related infections: focusing on disease modulating factors and coatings development. Expert Rev Med Devices 2023:1-17. [PMID: 37228179 DOI: 10.1080/17434440.2023.2218547] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/29/2023] [Accepted: 05/23/2023] [Indexed: 05/27/2023]
Abstract
INTRODUCTION Peri-implantitis is the leading cause of dental implant loss and is initiated by a polymicrobial dysbiotic biofilm formation on the implant surface. The destruction of peri-implant tissue by the host immune response and the low effectiveness of surgical or non-surgical treatments highlight the need for new strategies to prevent, modulate and/or eliminate biofilm formation on the implant surface. Currently, several surface modifications have been proposed using biomolecules, ions, antimicrobial agents, and topography alterations. AREAS COVERED Initially, this review provides an overview of the etiopathogenesis and host- and material-dependent modulating factors of peri-implant disease. In addition, a critical discussion about the antimicrobial surface modification mechanisms and techniques employed to modify the titanium implant material is provided. Finally, we also considered the future perspectives on the development of antimicrobial surfaces to narrow the bridge between idea and product and favor the clinical application possibility. EXPERT OPINION Antimicrobial surface modifications have demonstrated effective results; however, there is no consensus about the best modification strategy and in-depth information on the safety and longevity of the antimicrobial effect. Modified surfaces display recurring challenges such as short-term effectiveness, the burst release of drugs, cytotoxicity, and lack of reusability. Stimulus-responsive surfaces seem to be a promising strategy for a controlled and precise antimicrobial effect, and future research should focus on this technology and study it from models that better mimic clinical conditions.
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Affiliation(s)
- Samuel S Malheiros
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Bruna E Nagay
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Martinna M Bertolini
- Department of Periodontics and Preventive Dentistry, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA 15106, USA
| | - Erica D de Avila
- Department of Dental Materials and Prosthodontics, School of Dentistry at Araçatuba, São Paulo State University (UNESP), Araçatuba, Sao Paulo 16015-050, Brazil
| | - Jamil A Shibli
- Dental Research Division, Guarulhos University, Guarulhos, São Paulo 07023-070, Brazil
| | - João Gabriel S Souza
- Dental Research Division, Guarulhos University, Guarulhos, São Paulo 07023-070, Brazil
- Dental Science School (Faculdade de Ciências Odontológicas - FCO), Montes Claros, Minas Gerais39401-303, Brazil
| | - Valentim A R Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
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Baildya N, Mazumdar S, Mridha NK, Chattopadhyay AP, Khan AA, Dutta T, Mandal M, Chowdhury SK, Reza R, Ghosh NN. Comparative study of the efficiency of silicon carbide, boron nitride and carbon nanotube to deliver cancerous drug, azacitidine: A DFT study. Comput Biol Med 2023; 154:106593. [PMID: 36746115 DOI: 10.1016/j.compbiomed.2023.106593] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/17/2022] [Accepted: 01/22/2023] [Indexed: 01/31/2023]
Abstract
Herein we have made a comparative study of the efficiency of three different nanotubes viz. Carbon nanotube (CNT), boron nitride nanotube (BNNT) and silicon carbide nanotube (SiCNT) to deliver the cancerous drug, Azacitidine (AZD). The atomistic description of the encapsulation process of AZD in these nanotubes has been analyzed by evaluating parameters like adsorption energy, electrostatic potential map, reduced density gradient (RDG). Higher adsorption energy of AZD with BNNT (-0.66eV), SiCNT (-0.92eV) compared to CNT (-0.56eV) confirms stronger binding affinity of the drug for the former than the later. Charge density and electrostatic potential map suggest that charge separation involving BNNT and CNT is more prominent than SiCNT. Evaluation of different thermodynamic parameters like Gibbs free energy, enthalpy change revealed that the overall encapsulation process is spontaneous and exothermic in nature and much favorable with BNNT and SiCNT. Stabilizing interactions of the drug with BNNT and SiCNT has been confirmed from RDG analysis. ADMP molecular dynamics simulation supports that the encapsulation process of the drug within the NT at room temperature. These results open up unlimited opportunities for the applications of these NTs as a drug delivery system in the field of nanomedicine.
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Affiliation(s)
- Nabajyoti Baildya
- Department of Chemistry, Milki High School, Milki, Malda, West Bengal, 732209, India
| | - Sourav Mazumdar
- Department of Physics, Dukhulal Nibaran Chandra College, Suti, West Bengal, 742201, India
| | | | - Asoke P Chattopadhyay
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal, 741235, India
| | - Abdul Ashik Khan
- Department of Chemistry, Darjeeling Government College, West Bengal, 734101, India
| | - Tanmoy Dutta
- Department of Chemistry, JIS College of Engineering, Kalyani, 741235, India
| | - Manab Mandal
- Department of Botany, Dukhulal Nibaran Chandra College, Suti, West Bengal, 742201, India
| | | | - Rahimasoom Reza
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India
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Si Y, Liu H, Yu H, Jiang X, Sun D. MOF-derived CuO@ZnO modified titanium implant for synergistic antibacterial ability, osteogenesis and angiogenesis. Colloids Surf B Biointerfaces 2022; 219:112840. [PMID: 36113223 DOI: 10.1016/j.colsurfb.2022.112840] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/27/2022] [Accepted: 09/10/2022] [Indexed: 12/17/2022]
Abstract
Surface modification of titanium implants with antibacterial, osteogenic and even angiogenic capabilities are essential to enhance their clinical applicability. Herein, metal-organic framework (MOF) derived CuO@ZnO composite was grafted onto the polydopamine (PDA) modified titanium alloy to achieve vascularized bone regeneration. The CuO@ZnO-coated titanium effectively inhibits the formation of bacterial biofilms and the sterilization rate of Staphylococcus aureus (S. aureus) reaches 99%. Benefitting from the intrinsic porous architecture of MOFs, the Zn2+ and Cu2+ could be controllably released to facilitate the production of excess intracellular reactive oxygen species (ROS) inside the bacteria, which ensures the excellent antibacterial performance of the composite coating. The CuO@ZnO-coated titanium also exhibits good cytocompatibility, effectively promotes the adhesion and proliferation of the human bone marrow mesenchymal stem cells (hBMSCs) and reduces the level of the cell apoptosis. The up-regulated expression of the osteogenesis-related genes and the superior extracellular matrix mineralization reveals that the CuO@ZnO coating possesses fantastic osteoinductive properties. In addition, the transwell and tube formation assays of the human umbilical vein endothelial cells (HUVECs) suggest the superior angiogenesis ability of the CuO@ZnO-coated titanium. The released Cu2+ stimulated the angiogenesis of the HUVECs in vitro by up-regulating the expression of the vascular endothelial growth factor (VEGF). These findings will provide new insight into the development of multifunctional titanium implants for clinical applications.
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Affiliation(s)
- Yunhui Si
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, PR China
| | - Huanyao Liu
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Hongying Yu
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, PR China; Innovation Group of Marine Engineering Materials and Corrosion Control, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, PR China.
| | - Xuzhou Jiang
- School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, PR China; Nanotechnology Research Center, Sun Yat-sen University, Guangzhou 510275, PR China.
| | - Dongbai Sun
- School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, PR China; National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, PR China; Innovation Group of Marine Engineering Materials and Corrosion Control, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, PR China.
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Functionalised Anodised Aluminium Oxide as a Biocidal Agent. Int J Mol Sci 2022; 23:ijms23158327. [PMID: 35955460 PMCID: PMC9369004 DOI: 10.3390/ijms23158327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/18/2022] [Accepted: 07/26/2022] [Indexed: 02/04/2023] Open
Abstract
In this article, we describe the antimicrobial properties of a new composite based on anodic aluminium oxide (AAO) membranes containing propyl-copper-phosphonate units arranged at a predetermined density inside the AAO channels. The samples were prepared with four concentrations of copper ions and tested as antimicrobial drug on four different strains of Escherichia coli (K12, R2, R3 and R4). For comparison, the same strains were tested with three types of antibiotics using the minimal inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) tests. Moreover, DNA was isolated from the analysed bacteria which was additionally digested with formamidopyrimidine-DNA glycosylase (Fpg) protein from the group of repair glycosases. These enzymes are markers of modified oxidised bases in nucleic acids produced during oxidative stress in cells. Preliminary cellular studies, MIC and MBC tests and digestion with Fpg protein after modification of bacterial DNA suggest that these compounds may have greater potential as antibacterial agents than antibiotics such as ciprofloxacin, bleomycin and cloxacillin. The described composites are highly specific for the analysed model Escherichia coli strains and may be used in the future as new substitutes for commonly used antibiotics in clinical and nosocomial infections in the progressing pandemic era. The results show much stronger antibacterial properties of the functionalised membranes on the action of bacterial membranes in comparison to the antibiotics in the Fpg digestion experiment. This is most likely due to the strong induction of oxidative stress in the cell through the breakdown of the analysed bacterial DNA. We have also observed that the intermolecular distances between the functional units play an important role for the antimicrobial properties of the used material. Hence, we utilised the idea of the 2D solvent to tailor them.
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Liao J, Wang D, Tang A, Fu L, Ouyang J, Yang H. Surface modified halloysite nanotubes with different lumen diameters as drug carriers for cancer therapy. Chem Commun (Camb) 2021; 57:9470-9473. [PMID: 34528970 DOI: 10.1039/d1cc01879e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Paclitaxel (PTX) is successfully loaded by surface modification of distearoyl phosphoethanolamine (DSPE) on halloysite nanotubes (HNTs) with different inner lumen diameters. Drug loading of DSPE-HNTs-PTX attains 18.44% of DSPE content with a nearly complete release (near 100%) achieved. The anticancer efficacy (cell viability less than 52%) of DSPE-HNTs15-PTX increased and is attributed to the lower interfacial energy both inside and outside the tubes that improves tube loading.
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Affiliation(s)
- Juan Liao
- Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China.
| | - Dongyue Wang
- Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China.
| | - Aidong Tang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Liangjie Fu
- Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China. .,Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, China.,Hunan International Joint Lab of Mineral Materials, Central South University, Changsha 410083, China
| | - Jing Ouyang
- Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China. .,Hunan International Joint Lab of Mineral Materials, Central South University, Changsha 410083, China
| | - Huaming Yang
- Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China. .,Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, China.,Hunan International Joint Lab of Mineral Materials, Central South University, Changsha 410083, China
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Alipal J, Lee T, Koshy P, Abdullah H, Idris M. Evolution of anodised titanium for implant applications. Heliyon 2021; 7:e07408. [PMID: 34296002 PMCID: PMC8281482 DOI: 10.1016/j.heliyon.2021.e07408] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/15/2021] [Accepted: 06/23/2021] [Indexed: 12/26/2022] Open
Abstract
Anodised titanium has a long history as a coating structure for implants due to its bioactive and ossified surface, which promotes rapid bone integration. In response to the growing literature on anodised titanium, this article is the first to revisit the evolution of anodised titanium as an implant coating. The review reports the process and mechanisms for the engineering of distinctive anodised titanium structures, the significant factors influencing the mechanisms of its formation, bioactivity, as well as recent pre- and post-surface treatments proposed to improve the performance of anodised titanium. The review then broadens the discussion to include future functional trends of anodised titanium, ranging from the provision of higher surface energy interactions in the design of biocomposite coatings (template stencil interface for mechanical interlock) to techniques for measuring the bone-to-implant contact (BIC), each with their own challenges. Overall, this paper provides up-to-date information on the impacts of the structure and function of anodised titanium as an implant coating in vitro and in/ex vivo tests, as well as the four key future challenges that are important for its clinical translations, namely (i) techniques to enhance the mechanical stability and (ii) testing techniques to measure the mechanical stability of anodised titanium, (iii) real-time/in-situ detection methods for surface reactions, and (iv) cost-effectiveness for anodised titanium and its safety as a bone implant coating.
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Affiliation(s)
- J. Alipal
- Department of Chemical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia (UTHM), Pagoh Higher Education Hub, 84600 Muar, Johor, Malaysia
| | - T.C. Lee
- Department of Production and Operation Management, Faculty of Technology Management and Business, UTHM Parit Raja 86400, Batu Pahat, Johor, Malaysia
| | - P. Koshy
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW 2052, Australia
| | - H.Z. Abdullah
- Department of Manufacturing Engineering, Faculty of Mechanical and Manufacturing Engineering, UTHM Parit Raja 86400, Batu Pahat, Johor, Malaysia
| | - M.I. Idris
- Department of Manufacturing Engineering, Faculty of Mechanical and Manufacturing Engineering, UTHM Parit Raja 86400, Batu Pahat, Johor, Malaysia
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7
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Losic D. Advancing of titanium medical implants by surface engineering: recent progress and challenges. Expert Opin Drug Deliv 2021; 18:1355-1378. [PMID: 33985402 DOI: 10.1080/17425247.2021.1928071] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Introduction:Titanium (Ti) and their alloys are used as main implant materials in orthopedics and dentistry for decades having superior mechanical properties, chemical stability and biocompatibility. Their rejections due lack of biointegration and bacterial infection are concerning with considerable healthcare costs and impacts on patients. To address these limitations, conventional Ti implants need improvements where the use of surface nanoengineering approaches and the development of a new generation of implants are recognized as promising strategies.Areas covered:This review presents an overview of recent progress on the application of surface engineering methods to advance Ti implants enable to address their key limitations. Several promising surface engineering strategies are presented and critically discussed to generate advanced surface properties and nano-topographies (tubular, porous, pillars) able not only to improve their biointegration, antibacterial performances, but also to provide multiple functions such as drug delivery, therapy, sensing, communication and health monitoring underpinning the development of new generation and smart medical implants.Expert opinion:Recent advances in cell biology, materials science, nanotechnology and additive manufacturing has progressively influencing improvements of conventional Ti implants toward the development of the next generation of implants with improved performances and multifunctionality. Current research and development are in early stage, but progressing with promising results and examples of moving into in-vivo studies an translation into real applications.
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Affiliation(s)
- Dusan Losic
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Engineering North Building, Adelaide, SA, Australia.,ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Engineering North Building, Adelaide, SA, Australia
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Jayasree A, Ivanovski S, Gulati K. ON or OFF: Triggered therapies from anodized nano-engineered titanium implants. J Control Release 2021; 333:521-535. [DOI: 10.1016/j.jconrel.2021.03.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022]
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Micheletti C, Suriano R, Grandfield K, Turri S. Drug release from polymer-coated TiO2 nanotubes on additively manufactured Ti-6Al-4V bone implants: a feasibility study. NANO EXPRESS 2021. [DOI: 10.1088/2632-959x/abe278] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Insufficient osseointegration, inflammatory response and bacterial infection are responsible for the majority of bone implant failures. Drug-releasing implants subjected to adequate surface modification can concurrently address these challenges to improve the success of implant surgeries. This work investigates the use of Ti-6Al-4V (Ti64) with a dual-scale surface topography as a platform for local drug delivery. Dual-scale topography was obtained combining the inherent microscale roughness of the Ti64 samples manufactured by selective laser melting (SLM) with the nanoscale roughness of TiO2 nanotubes (TNTs) obtained by subsequent electrochemical anodization at 60 V for 30 min. TNTs were loaded with a solution of penicillin-streptomycin, a common antibiotic, and drug release was tested in vitro. Three biocompatible and biodegradable polymers, i.e. chitosan, poly(ε-caprolactone) and poly(3-hydroxybutyrate), were deposited by spin coating, while preserving the microscale topography of the substrate underneath. The presence of polymer coatings overall modified the drug release pattern, as revealed by fitting of the experimental data with a power-law model. A slight extension in the overall duration of drug release (about 17% for a single layer and 33% for two layers of PCL and PHB) and reduced burst release was observed for all polymer-coated samples compared to uncoated, especially when two layers of coatings were applied.
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10
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Ruiz-Clavijo A, Caballero-Calero O, Martín-González M. Revisiting anodic alumina templates: from fabrication to applications. NANOSCALE 2021; 13:2227-2265. [PMID: 33480949 DOI: 10.1039/d0nr07582e] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Anodic porous alumina, -AAO- (also known as nanoporous alumina, nanohole alumina arrays, -NAA- or nanoporous anodized alumina platforms, -NAAP-) has opened new opportunities in a wide range of fields, and is used as an advanced photonic structure for applications in structural coloration and advanced optical biosensing based on the ordered nanoporous structure obtained and as a template to grow nanowires or nanotubes of different materials giving rise to metamaterials with tailored properties. Therefore, understanding the structure of nanoporous anodic alumina templates and knowing how they are fabricated provide a tool for the further design of structures based on them, such as 3D nanoporous structures developed recently. In this work, we review the latest developments related to nanoporous alumina, which is currently a very active field, to provide a solid and thorough reference for all interested experts, both in academia and industry, on these nanostructured and highly useful structures. We present an overview of theories on the formation of pores and self-ordering in alumina, paying special attention to those presented in recent years, and different nanostructures that have been developed recently. Therefore, a wide variety of architectures, ranging from ordered nanoporous structures to diameter changing pores, branched pores, and 3D nanostructures will be discussed. Next, some of the most relevant results using different nanostructured morphologies as templates for the growth of different materials with novel properties and reduced dimensionality in magnetism, thermoelectricity, etc. will be summarised, showing how these structures have influenced the state of the art in a wide variety of fields. Finally, a review on how these anodic aluminium membranes are used as platforms for different applications combined with optical techniques, together with principles behind these applications will be presented, in addition to a hint on the future applications of these versatile nanomaterials. In summary, this review is focused on the most recent developments, without neglecting the basis and older studies that have led the way to these findings. Thus, it gives an updated state-of-the-art review that should be useful not only for experts in the field, but also for non-specialists, helping them to gain a broad understanding of the importance of anodic porous alumina, and most probably, endow them with new ideas for its use in fields of interest or even developing the anodization technique.
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Affiliation(s)
- Alejandra Ruiz-Clavijo
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC) Isaac Newton, 8, E-28760, Tres Cantos, Madrid, Spain.
| | - Olga Caballero-Calero
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC) Isaac Newton, 8, E-28760, Tres Cantos, Madrid, Spain.
| | - Marisol Martín-González
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC) Isaac Newton, 8, E-28760, Tres Cantos, Madrid, Spain.
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Bhattarai JK, Neupane D, Nepal B, Demchenko AV, Stine KJ. Nanoporous Gold Monolith for High Loading of Unmodified Doxorubicin and Sustained Co-Release of Doxorubicin-Rapamycin. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:208. [PMID: 33467416 PMCID: PMC7830488 DOI: 10.3390/nano11010208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/30/2020] [Accepted: 01/12/2021] [Indexed: 12/18/2022]
Abstract
Nanoparticles (NPs) have been widely explored for delivering doxorubicin (DOX), an anticancer drug, to minimize cardiotoxicity. However, their efficiency is marred by a necessity to chemically modify DOX, NPs, or both and low deposition of the administered NPs on tumors. Therefore, alternative strategies should be developed to improve therapeutic efficacy and decrease toxicity. Here we report the possibility of employing a monolithic nanoporous gold (np-Au) rod as an implant for delivering DOX. The np-Au has very high DOX encapsulation efficiency (>98%) with maximum loading of 93.4 mg cm-3 without any chemical modification required of DOX or np-Au. We provide a plausible mechanism for the high loading of DOX in np-Au. The DOX sustained release for 26 days from np-Au in different pH conditions at 37 °C, which was monitored using UV-Vis spectroscopy. Additionally, we encased the DOX-loaded np-Au with rapamycin (RAPA)-trapped poly(D,L-lactide-co-glycolide) (PLGA) to fabricate an np-Au@PLGA/RAPA implant and optimized the combinatorial release of DOX and RAPA. Further exploiting the effect of the protein corona around np-Au and np-Au@PLGA/RAPA showed zero-order release kinetics of DOX. This work proves that the np-Au-based implant has the potential to be used as a DOX carrier of potential use in cancer treatment.
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Affiliation(s)
| | | | | | | | - Keith J. Stine
- Department of Chemistry and Biochemistry, University of Missouri—St. Louis, Saint Louis, MO 63121, USA; (J.K.B.); (D.N.); (B.N.); (A.V.D.)
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Su Y, Lu W, Fu X, Xu Y, Ye L, Yang J, Huang H, Yu C. Formulation and Pharmacokinetic Evaluation of a Drug-in-Adhesive Patch for Transdermal Delivery of Koumine. AAPS PharmSciTech 2020; 21:297. [PMID: 33099696 DOI: 10.1208/s12249-020-01793-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 08/18/2020] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to develop a suitable drug-in-adhesive patch for transdermal delivery of koumine. Acrylic polymer Duro-Tak® 87-4287, which contains hydroxyl groups, may significantly enhance the skin permeation of koumine from transdermal patches containing 0.93-3.72% koumine. Among permeation enhancers, 10% azone showed the greatest potential and increased the flux of koumine to 1.48-fold that of the control. Therefore, an optimized patch formulation containing 3.72% koumine and 10% azone in Duro-Tak® 87-4287 that offers good physical properties was selected for an in vivo pharmacokinetic study using rats. The maximal plasma drug concentration (Cmax) of koumine after transdermal administration (4 mg/patch) was 25.80 ± 1.51 ng/mL, which was in the range of those after oral administration (3 mg/kg and 15 mg/kg). The time to the maximal concentration (Tmax) and the half-life (t1/2) of the drug with transdermal administration were 3.96 ± 0.46 h and 21.10 ± 1.36 h, respectively, which were longer than those with oral administration. Furthermore, the area under the concentration-time curve (AUC0-72 h) of 898.20 ± 45.57 ng·h/mL for the transdermal patch was much higher than that for oral administration (15 mg/kg). In conclusion, the drug-in-adhesive patch containing koumine provides a steady plasma koumine level and sustained release in vivo and can be an effective means of transdermal delivery for koumine.
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Amouzadeh Tabrizi M, Ferre-Borrull J, Marsal LF. Advances in Optical Biosensors and Sensors Using Nanoporous Anodic Alumina. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5068. [PMID: 32906635 PMCID: PMC7570681 DOI: 10.3390/s20185068] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 12/11/2022]
Abstract
This review paper focuses on recent progress in optical biosensors using self-ordered nanoporous anodic alumina. We present the fabrication of self-ordered nanoporous anodic alumina, surface functionalization, and optical sensor applications. We show that self-ordered nanoporous anodic alumina has good potential for use in the fabrication of antibody-based (immunosensor), aptamer-based (aptasensor), gene-based (genosensor), peptide-based, and enzyme-based optical biosensors. The fabricated optical biosensors presented high sensitivity and selectivity. In addition, we also showed that the performance of the biosensors and the self-ordered nanoporous anodic alumina can be used for assessing biomolecules, heavy ions, and gas molecules.
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Affiliation(s)
| | | | - Lluis F. Marsal
- Departamento de Ingeniería Electrónica, Eléctrica y Automática, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007 Tarragona, Spain; (M.A.T.); (J.F.-B.)
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14
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When polymers meet carbon nanostructures: expanding horizons in cancer therapy. Future Med Chem 2020; 11:2205-2231. [PMID: 31538523 DOI: 10.4155/fmc-2018-0540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The development of hybrid materials, which combine inorganic with organic materials, is receiving increasing attention by researchers. As a consequence of carbon nanostructures high chemical versatility, they exhibit enormous potential for new highly engineered multifunctional nanotherapeutic agents for cancer therapy. Whereas many groups are working on drug delivery systems for chemotherapy, the use of carbon nanohybrids for radiotherapy is rarely applied. Thus, nanotechnology offers a wide range of solutions to overcome the current obstacles of conventional chemo- and/or radiotherapies. Within this review, the structure and properties of carbon nanostructures (carbon nanotubes, nanographene oxide) functionalized preferentially with different types of polymers (synthetic, natural) are discussed. In short, synthesis approaches, toxicity investigations and anticancer efficacy of different carbon nanohybrids are described.
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15
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Synergistic regulation of osteoimmune microenvironment by IL-4 and RGD to accelerate osteogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 109:110508. [DOI: 10.1016/j.msec.2019.110508] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/30/2019] [Accepted: 11/28/2019] [Indexed: 12/13/2022]
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16
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Experimental study and modeling of in vitro agrochemicals release from nanoporous anodic alumina. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-019-01045-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Fazli-Abukheyli R, Rahimi MR, Ghaedi M. Electrospinning coating of nanoporous anodic alumina for controlling the drug release: Drug release study and modeling. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101247] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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18
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Ranjous Y, Regdon G, Pintye-Hódi K, Varga T, Szenti I, Kónya Z, Sovány T. Optimization of the Production Process and Product Quality of Titanate Nanotube-Drug Composites. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1406. [PMID: 31581711 PMCID: PMC6835682 DOI: 10.3390/nano9101406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 09/28/2019] [Indexed: 11/16/2022]
Abstract
Recently, there has been an increasing interest in the application of nanotubular structures for drug delivery. There are several promising results with carbon nanotubes; however, in light of some toxicity issues, the search for alternative materials has come into focus. The objective of the present study was to investigate the influence of the applied solvent on the composite formation of titanate nanotubes (TNTs) with various drugs in order to improve their pharmacokinetics, such as solubility, stability, and bioavailability. Composites were formed by the dissolution of atenolol (ATN) and hydrochlorothiazide (HCT) in ethanol, methanol, 0.01 M hydrochloric acid or in ethanol, 1M sodium hydroxide, dimethylformamide (DMF), dimethyl sulfoxide (DMSO), respectively, and then they were mixed with a suspension of TNTs under sonication for 30 min and vacuum-dried for 24 h. The structural properties of composites were characterized by SEM, TEM, FT-IR, differential scanning calorimetry (DSC), thermogravimetric (TG) analysis, and optical contact angle (OCA) measurements. Drug release was determined from the fast disintegrating tablets using a dissolution tester coupled with a UV-Vis spectrometer. The results revealed that not only the good solubility of the drug in the applied solvent, but also the high volatility of the solvent, is necessary for an optimal composite-formation process.
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Affiliation(s)
- Yasmin Ranjous
- Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös u. 6., H-6720 Szeged, Hungary; (Y.R.); (K.P.-H.)
| | - Géza Regdon
- Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös u. 6., H-6720 Szeged, Hungary; (Y.R.); (K.P.-H.)
| | - Klára Pintye-Hódi
- Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös u. 6., H-6720 Szeged, Hungary; (Y.R.); (K.P.-H.)
| | - Tamás Varga
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., H-6720 Szeged, Hungary; (T.V.); (I.S.); (Z.K.)
| | - Imre Szenti
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., H-6720 Szeged, Hungary; (T.V.); (I.S.); (Z.K.)
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., H-6720 Szeged, Hungary; (T.V.); (I.S.); (Z.K.)
- Reaction Kinetics and Surface Chemistry Research Group, Hungarian Academy of Sciences-University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary
| | - Tamás Sovány
- Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös u. 6., H-6720 Szeged, Hungary; (Y.R.); (K.P.-H.)
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Abbas WA, Abdullah IH, Ali BA, Ahmed N, Mohamed AM, Rezk MY, Ismail N, Mohamed MA, Allam NK. Recent advances in the use of TiO 2 nanotube powder in biological, environmental, and energy applications. NANOSCALE ADVANCES 2019; 1:2801-2816. [PMID: 36133585 PMCID: PMC9418402 DOI: 10.1039/c9na00339h] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/01/2019] [Indexed: 05/26/2023]
Abstract
The use of titanium dioxide nanotubes in the powder form (TNTP) has been a hot topic for the past few decades in many applications. The high quality of the fabricated TNTP by various synthetic routes may meet the required threshold of performance in a plethora of fields such as drug delivery, sensors, supercapacitors, and photocatalytic applications. This review briefly discusses the synthesis techniques of TNTP, their use in various applications, and future perspectives to expand their use in more applications.
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Affiliation(s)
- Walaa A Abbas
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Ibrahim H Abdullah
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Basant A Ali
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Nashaat Ahmed
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Aya M Mohamed
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Marwan Y Rezk
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Noha Ismail
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Mona A Mohamed
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Nageh K Allam
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
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Icariin-Functionalized Coating on TiO2 Nanotubes Surface to Improve Osteoblast Activity In Vitro and Osteogenesis Ability In Vivo. COATINGS 2019. [DOI: 10.3390/coatings9050327] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Surface modification of titanium is encouraged to facilitate early osseointegration in dental and orthopedic fields. Icariin is the main active constituents of Herba Epimedii, which has good bone-promoting ability. We established an icariin-functionalized coating composed of icariin and poly (lactic-co-glycolic acid) (PLGA) on TiO2 nanotubes surface (NT-ICA-PLGA) to promote osteoblast cell activity and early osseointegration. Surface topography, wettability and drug release pattern of the established NT-ICA-PLGA surface were characterized by scanning electron microscopy (SEM), contact angle test and drug release test. MC3T3-E1 osteoblast cell activity tests were performed using SEM, immunofluorescent staining, cell counting kit-8 and alkaline phosphatase assays. The osteogenic effects of different surfaces were observed using a rat model. Surface characterization proved the successful fabrication of the icariin-functionalized coating on the TiO2 nanotube structure, with increased wettability. The NT-ICA-PLGA substrate showed sustained release of icariin until two weeks. Osteoblast cells grown on the NT-ICA-PLGA substrate displayed improved cell adhesion, proliferation and differentiation ability than the control Ti surface. The in vivo experiment also revealed superior bone forming ability on the NT-ICA-PLGA surface, compared to the pure Ti control. These results imply that the developed NT-ICA-PLGA substrate has a promising future use as functionalized coating for implant surface modification.
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Maher S, Mazinani A, Barati MR, Losic D. Engineered titanium implants for localized drug delivery: recent advances and perspectives of Titania nanotubes arrays. Expert Opin Drug Deliv 2019; 15:1021-1037. [PMID: 30259776 DOI: 10.1080/17425247.2018.1517743] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
INTRODUCTION Therapeutics delivery to bones to treat skeletal diseases or prevent postsurgical infections is challenging due to complex and solid bone structure that limits blood supply and diffusion of therapeutics administered by systemic routes to reach effective concentration. Titanium (Ti) and their alloys are employed as mainstream implant materials in orthopedics and dentistry; having superior mechanical/biocompatibility properties which could provide an alternative solution to address this problem. AREAS COVERED This review presents an overview of recent development of Ti drug-releasing implants, with emphasis on nanoengineered Titania nanotubes (TNTs) structures, for solving key problems to improve implants osseointegration, overcome inflammation and infection together with providing localized drug delivery (LDD) for bone diseases including cancer. Critical analysis of the advantages/disadvantages of developed concepts is discussed, their drug loading/releasing performances and specific applications. EXPERT OPINION LDD to bones can address many disorders and postsurgical conditions such as inflammation, implants rejection and infection. To this end, TNTs-Ti implants represent a potential promise for the development of new generation of multifunctional implants with drug release functions. Even this concept is extensively explored recently, there is a strong need for more preclinical studies using animal models to confirm the long-term safety and stability of TNTs-Ti implants for real-life medical applications.
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Affiliation(s)
- Shaheer Maher
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia
| | - Arash Mazinani
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia
| | - Mohammad Reza Barati
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia
| | - Dusan Losic
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia
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22
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Syroeshkin AV, Uspenskaya EV, Pleteneva TV, Morozova MA, Zlatskiy IA, Koldina AM, Nikiforova MV. Mechanical Transformation of Compounds Leading to Physical, Chemical, and Biological Changes in Pharmaceutical Substances. ScientificWorldJournal 2018; 2018:8905471. [PMID: 30643492 PMCID: PMC6311245 DOI: 10.1155/2018/8905471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 11/18/2018] [Indexed: 01/05/2023] Open
Abstract
This study demonstrates the link between the modification of the solid-phase pharmaceutical substances mechanical structure and their activity in waters with different molar ratio «deuterium-protium». Mechanochemical transformation of the powders of lactose monohydrate and sodium chloride as models of nutrients and components of dosage forms was investigated by the complex of physicochemical and biological methods. The solubility and kinetic activity of substances dispersed in various ways showed a positive correlation with the solvent isotope profile. Substances dissolved in heavy water were more active than solutes in natural water. Differential IR spectroscopy confirmed the modification of substituents in the sample of lactose monohydrate, demonstrating physicochemical changes during mechanical intervention. The biological activity of the compounds was determined by the method of Spirotox. The activation energy was determined by Arrhenius. Compared with the native compound, dispersed lactose monohydrate showed lower activation energy and, therefore, greater efficiency. In conclusion, proposed data confirm the statement that mechanical changes in compounds can lead to physicochemical changes that affect chemical and biological profiles.
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Affiliation(s)
- A. V. Syroeshkin
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russia
| | - E. V. Uspenskaya
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russia
| | - T. V. Pleteneva
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russia
| | - M. A. Morozova
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russia
| | - I. A. Zlatskiy
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russia
- Dumanskii Institute of Colloid and Water Chemistry National Academy of Sciences of Ukraine, Kiev, Ukraine
| | - A. M. Koldina
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russia
| | - M. V. Nikiforova
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russia
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Zhao M, Wu W, Su B. pH-Controlled Drug Release by Diffusion through Silica Nanochannel Membranes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:33986-33992. [PMID: 30211527 DOI: 10.1021/acsami.8b12200] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report in this work the fabrication of a flow-through silica nanochannel membrane (SNM) for controlled drug release applications. The ultrathin SNM consists of parallel nanochannels with a uniform diameter of ∼2.3 nm and a density of 4 × 1012 cm-2, which provide simultaneously high permeability and size selectivity toward small molecules. The track-etched porous polyethylene terephthalate film premodified with silane on its surface was used to support the ultrathin SNM via irreversible covalent bond formation, thus offering mechanical strength, flexibility, and stability to the ultrathin SNM for continuous and long-term use. Alkylamines were subsequently grafted onto the SNM surface to modulate the "on" and "off" state of nanochannels by medium pH for controlled drug release. Thiamphenicol glycinate hydrochloride (TPG), an intestinal drug, was studied as a model to permeate through an ultrathin SNM in both simulated gastric fluid (pH = 1.2) and simulated intestinal fluid (pH = 7.5). The release in the latter case was 178 times faster than that in the former. Moreover, a nearly zero-order constant release of TPG via single-file diffusion was achieved up to 24 h, demonstrating the feasibility of sustained and continuous release of small-molecule drugs in a pH-controlled manner.
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Affiliation(s)
- Meijiao Zhao
- Institute of Analytical Chemistry, Department of Chemistry , Zhejiang University , Hangzhou 310058 , China
| | - Wanhao Wu
- Institute of Analytical Chemistry, Department of Chemistry , Zhejiang University , Hangzhou 310058 , China
| | - Bin Su
- Institute of Analytical Chemistry, Department of Chemistry , Zhejiang University , Hangzhou 310058 , China
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24
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Cheng H, Zhang M, Hu H, Gong Z, Zeng Y, Chen J, Zhu Z, Wan Y. Selenium-Modified TiO2 Nanoarrays with Antibacterial and Anticancer Properties for Postoperation Therapy Applications. ACS APPLIED BIO MATERIALS 2018; 1:1656-1666. [DOI: 10.1021/acsabm.8b00486] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Ying Wan
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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25
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Pawlik A, Socha RP, Hubalek Kalbacova M, Sulka GD. Surface modification of nanoporous anodic titanium dioxide layers for drug delivery systems and enhanced SAOS-2 cell response. Colloids Surf B Biointerfaces 2018; 171:58-66. [PMID: 30007219 DOI: 10.1016/j.colsurfb.2018.07.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/13/2018] [Accepted: 07/05/2018] [Indexed: 01/13/2023]
Abstract
Nowadays, titanium and its alloys are the most commonly used implantable materials. The surface topography and chemistry of titanium-based implants are responsible for osseointegration. One of the methods to improve biocompatibility of Ti implants is a modification with sodium hydroxide (NaOH) or 3-aminopropyltriethoxysilane (APTES). In the present study, anodic titanium dioxide (ATO) layers were electrochemically fabricated, and then immersed in a NaOH solution or in NaOH and APTES solutions. The functionalized samples were characterized by using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). All samples were examined as drug delivery systems and scaffolds for cell culturing. Based on the parameters of the fitted desorption-desorption-diffusion (DDD) model parameters, it was concluded that the modification with NaOH increased the amount of released ibuprofen and inhibited the release process. Osteoblast-like cell line (SAOS-2) was used to investigate the cell response on the non-modified and modified ATO samples. The MTS test and immunofluorescent staining were carried out to examine cell adhesion and proliferation. The data showed that the modification of nanoporous TiO2 layers with small molecules such as APTES enhanced metabolic activity of adhered cells compared with the non-modified and NaOH-modified TiO2 layers. In addition, the cells had a polygonal-like morphology with distinct projecting actin filaments and were well dispersed over the whole analyzed surface.
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Affiliation(s)
- Anna Pawlik
- Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry Jagiellonian University in Krakow, Gronostajowa 2, 30387 Krakow, Poland
| | - Robert P Socha
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30239 Krakow, Poland
| | - Marie Hubalek Kalbacova
- Institute of Pathological Physiology, 1st Faculty of Medicine, Charles University, U nemocnice 5, 128 53 Prague, Czech Republic.
| | - Grzegorz D Sulka
- Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry Jagiellonian University in Krakow, Gronostajowa 2, 30387 Krakow, Poland.
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Fu Y, Mo A. A Review on the Electrochemically Self-organized Titania Nanotube Arrays: Synthesis, Modifications, and Biomedical Applications. NANOSCALE RESEARCH LETTERS 2018; 13:187. [PMID: 29956033 PMCID: PMC6023805 DOI: 10.1186/s11671-018-2597-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 06/07/2018] [Indexed: 02/05/2023]
Abstract
Titania nanotubes grown by anodic oxidation have intrigued the material science community by its many unique and potential properties, and the synthesis of technology is merging to its mature stage. The present review will focus on TiO2 nanotubes grown by self-organized electrochemical anodization from Ti metal substrate, which critically highlights the synthesis of this type of self-organized titania nanotube layers and the means to influence the size, shape, the degree of order, and crystallized phases via adjusting the anodization parameters and the subsequent thermal annealing. The relationship between dimensions and properties of the anodic TiO2 nanotube arrays will be presented. The latest progress and significance of the research on formation mechanism of anodic TiO2 nanotubes are briefly discussed. Besides, we will show the most promising applications reported recently in biomedical directions and modifications carried out by doping, surface modification, and thermal annealing toward improving the properties of anodically formed TiO2 nanotubes. At last, some unsolved issues and possible future directions of this field are indicated.
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Affiliation(s)
- Yu Fu
- State Key Laboratory of Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 China
| | - Anchun Mo
- State Key Laboratory of Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 China
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Nautiyal P, Alam F, Balani K, Agarwal A. The Role of Nanomechanics in Healthcare. Adv Healthc Mater 2018; 7. [PMID: 29193838 DOI: 10.1002/adhm.201700793] [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: 06/30/2017] [Revised: 09/18/2017] [Indexed: 12/21/2022]
Abstract
Nanomechanics has played a vital role in pushing our capability to detect, probe, and manipulate the biological species, such as proteins, cells, and tissues, paving way to a deeper knowledge and superior strategies for healthcare. Nanomechanical characterization techniques, such as atomic force microscopy, nanoindentation, nanotribology, optical tweezers, and other hybrid techniques have been utilized to understand the mechanics and kinetics of biospecies. Investigation of the mechanics of cells and tissues has provided critical information about mechanical characteristics of host body environments. This information has been utilized for developing biomimetic materials and structures for tissue engineering and artificial implants. This review summarizes nanomechanical characterization techniques and their potential applications in healthcare research. The principles and examples of label-free detection of cancers and myocardial infarction by nanomechanical cantilevers are discussed. The vital importance of nanomechanics in regenerative medicine is highlighted from the perspective of material selection and design for developing biocompatible scaffolds. This review interconnects the advancements made in fundamental materials science research and biomedical technology, and therefore provides scientific insight that is of common interest to the researchers working in different disciplines of healthcare science and technology.
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Affiliation(s)
- Pranjal Nautiyal
- Nanomechanics and Nanotribology Laboratory Florida International University 10555 West Flagler Street Miami FL 33174 USA
| | - Fahad Alam
- Biomaterials Processing and Characterization Laboratory Department of Materials Science and Engineering Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Kantesh Balani
- Biomaterials Processing and Characterization Laboratory Department of Materials Science and Engineering Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Arvind Agarwal
- Nanomechanics and Nanotribology Laboratory Florida International University 10555 West Flagler Street Miami FL 33174 USA
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28
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TiO2 and its composites as promising biomaterials: a review. Biometals 2018; 31:147-159. [DOI: 10.1007/s10534-018-0078-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 01/26/2018] [Indexed: 01/04/2023]
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29
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Lin MS, Chen RT, Yu NY, Sun LC, Liu Y, Cui CH, Xie SY, Huang RB, Zheng LS. Fullerene-based amino acid ester chlorides self-assembled as spherical nano-vesicles for drug delayed release. Colloids Surf B Biointerfaces 2017; 159:613-619. [DOI: 10.1016/j.colsurfb.2017.08.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/31/2017] [Accepted: 08/02/2017] [Indexed: 10/19/2022]
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30
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Porta-I-Batalla M, Xifré-Pérez E, Eckstein C, Ferré-Borrull J, Marsal LF. 3D Nanoporous Anodic Alumina Structures for Sustained Drug Release. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E227. [PMID: 28825654 PMCID: PMC5575709 DOI: 10.3390/nano7080227] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 08/14/2017] [Indexed: 12/19/2022]
Abstract
The use of nanoporous anodic alumina (NAA) for the development of drug delivery systems has gained much attention in recent years. The release of drugs loaded inside NAA pores is complex and depends on the morphology of the pores. In this study, NAA, with different three-dimensional (3D) pore structures (cylindrical pores with several pore diameters, multilayered nanofunnels, and multilayered inverted funnels) were fabricated, and their respective drug delivery rates were studied and modeled using doxorubicin as a model drug. The obtained results reveal optimal modeling of all 3D pore structures, differentiating two drug release stages. Thus, an initial short-term and a sustained long-term release were successfully modeled by the Higuchi and the Korsmeyer-Peppas equations, respectively. This study demonstrates the influence of pore geometries on drug release rates, and further presents a sustained long-term drug release that exceeds 60 days without an undesired initial burst.
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Affiliation(s)
- Maria Porta-I-Batalla
- Departament d'Enginyeria Electrònica, Elèctrica i Automàtica, ETSE, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007 Tarragona, Spain.
| | - Elisabet Xifré-Pérez
- Departament d'Enginyeria Electrònica, Elèctrica i Automàtica, ETSE, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007 Tarragona, Spain.
| | - Chris Eckstein
- Departament d'Enginyeria Electrònica, Elèctrica i Automàtica, ETSE, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007 Tarragona, Spain.
| | - Josep Ferré-Borrull
- Departament d'Enginyeria Electrònica, Elèctrica i Automàtica, ETSE, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007 Tarragona, Spain.
| | - Lluis F Marsal
- Departament d'Enginyeria Electrònica, Elèctrica i Automàtica, ETSE, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007 Tarragona, Spain.
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Glypican-based drug releasing titania implants to regulate BMP2 bioactivity as a potential approach for craniosynostosis therapy. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017. [PMID: 28648641 DOI: 10.1016/j.nano.2017.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Advances in molecular biology and nanomedicine based therapies hold promise to obviate the need of multiple surgical interventions (associated with current management) in craniosynostosis by preventing bone re-ossification. One such adjunctive therapy involves application of glypicans 1 and 3 (GPC1 and GPC3) that are BMP inhibitors implicated in downregulating the BMP2 activity in prematurely fusing sutures. Electrochemically anodized Titania nanotube (TNT) arrays have been recognized as a promising localized, long-term drug delivery platform for bone-related therapies. This study presents the application of nanoengineered TNT/Ti implants loaded with recombinant glypicans for craniosynostosis therapy. By using Dual luciferase Reporter assay, we tested the biofunctionality of eluted glypicans from the TNT/Ti implants for BMP2 bioactivity regulation in C2C12 murine myoblast cell line. BMP2 activity was inhibited significantly for up to 15days by the glypicans released from polymer-coated TNT/Ti implants, indicating their potential application in adjunctive craniosynostosis treatment.
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Co-delivery of ibuprofen and gentamicin from nanoporous anodic titanium dioxide layers. Colloids Surf B Biointerfaces 2017; 152:95-102. [DOI: 10.1016/j.colsurfb.2017.01.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/11/2016] [Accepted: 01/06/2017] [Indexed: 01/26/2023]
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33
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Energy-triggered drug release from polymer nanoparticles for orthopedic applications. Ther Deliv 2017; 8:5-14. [DOI: 10.4155/tde-2016-0066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Sequestra, present in many cancers and orthopedic infections, provide a safe harbor for the development of drug resistance. In the face of burgeoning drug resistance, the importance of nanoscale, microenvironment-triggered drug delivery cannot be overestimated. Such strategies may preserve pharmaceutical efficacy and significantly alter the etiology of many orthopedic diseases. Although temperature-, pH- and redox-responsive nanoparticle-based systems have been extensively studied, local drug delivery from polymeric nanoparticles can be triggered by a variety of energy forms. This review offers an overview of the state of the field as well as a perspective on the safety and efficacy of ultrasound, hyperthermia and radio frequency-triggered internal delivery systems in a variety of applications.
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Gulati K, Ivanovski S. Dental implants modified with drug releasing titania nanotubes: therapeutic potential and developmental challenges. Expert Opin Drug Deliv 2016; 14:1009-1024. [PMID: 27892717 DOI: 10.1080/17425247.2017.1266332] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION The transmucosal nature of dental implants presents a unique therapeutic challenge, requiring not only rapid establishment and subsequent maintenance of osseointegration, but also the formation of resilient soft tissue integration. Key challenges in achieving long-term success are sub-optimal bone integration in compromised bone conditions and impaired trans-mucosal tissue integration in the presence of a persistent oral microbial biofilm. These challenges can be targeted by employing a drug-releasing implant modification such as TiO2 nanotubes (TNTs), engineered on titanium surfaces via electrochemical anodization. Areas covered: This review focuses on applications of TNT-based dental implants towards achieving optimal therapeutic efficacy. Firstly, the functions of TNT implants will be explored in terms of their influence on osseointegration, soft tissue integration and immunomodulation. Secondly, the developmental challenges associated with such implants are reviewed including sterilization, stability and toxicity. Expert opinion: The potential of TNTs is yet to be fully explored in the context of the complex oral environment, including appropriate modulation of alveolar bone healing, immune-inflammatory processes, and soft tissue responses. Besides long-term in vivo assessment under masticatory loading conditions, investigating drug-release profiles in vivo and addressing various technical challenges are required to bridge the gap between research and clinical dentistry.
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Affiliation(s)
- Karan Gulati
- a School of Dentistry and Oral Health , Griffith University , Gold Coast , Australia.,b Tissue Engineering and Regenerative Medicine (TERM) Group, Understanding Chronic Conditions (UCC) Program, Menzies Health Institute Queensland , Griffith University , Gold Coast , Australia
| | - Sašo Ivanovski
- a School of Dentistry and Oral Health , Griffith University , Gold Coast , Australia.,b Tissue Engineering and Regenerative Medicine (TERM) Group, Understanding Chronic Conditions (UCC) Program, Menzies Health Institute Queensland , Griffith University , Gold Coast , Australia
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35
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Mohan L, Anandan C, Rajendran N. Drug release characteristics of quercetin-loaded TiO 2 nanotubes coated with chitosan. Int J Biol Macromol 2016; 93:1633-1638. [DOI: 10.1016/j.ijbiomac.2016.04.034] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 04/06/2016] [Accepted: 04/12/2016] [Indexed: 10/21/2022]
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36
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Drug-releasing nano-engineered titanium implants: therapeutic efficacy in 3D cell culture model, controlled release and stability. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:831-40. [DOI: 10.1016/j.msec.2016.07.047] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 06/28/2016] [Accepted: 07/19/2016] [Indexed: 01/05/2023]
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Porta-I-Batalla M, Eckstein C, Xifré-Pérez E, Formentín P, Ferré-Borrull J, Marsal LF. Sustained, Controlled and Stimuli-Responsive Drug Release Systems Based on Nanoporous Anodic Alumina with Layer-by-Layer Polyelectrolyte. NANOSCALE RESEARCH LETTERS 2016; 11:372. [PMID: 27550052 PMCID: PMC4993726 DOI: 10.1186/s11671-016-1585-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Accepted: 08/13/2016] [Indexed: 05/19/2023]
Abstract
Controlled drug delivery systems are an encouraging solution to some drug disadvantages such as reduced solubility, deprived biodistribution, tissue damage, fast breakdown of the drug, cytotoxicity, or side effects. Self-ordered nanoporous anodic alumina is an auspicious material for drug delivery due to its biocompatibility, stability, and controllable pore geometry. Its use in drug delivery applications has been explored in several fields, including therapeutic devices for bone and dental tissue engineering, coronary stent implants, and carriers for transplanted cells. In this work, we have created and analyzed a stimuli-responsive drug delivery system based on layer-by-layer pH-responsive polyelectrolyte and nanoporous anodic alumina. The results demonstrate that it is possible to control the drug release using a polyelectrolyte multilayer coating that will act as a gate.
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Affiliation(s)
- Maria Porta-I-Batalla
- Department of Electronic, Electric and Automatics Engineering, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007, Tarragona, Spain
| | - Chris Eckstein
- Department of Electronic, Electric and Automatics Engineering, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007, Tarragona, Spain
| | - Elisabet Xifré-Pérez
- Department of Electronic, Electric and Automatics Engineering, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007, Tarragona, Spain
| | - Pilar Formentín
- Department of Electronic, Electric and Automatics Engineering, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007, Tarragona, Spain
| | - J Ferré-Borrull
- Department of Electronic, Electric and Automatics Engineering, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007, Tarragona, Spain
| | - Lluis F Marsal
- Department of Electronic, Electric and Automatics Engineering, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007, Tarragona, Spain.
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38
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Preparation of TiO 2 nanotubes/mesoporous calcium silicate composites with controllable drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:433-439. [DOI: 10.1016/j.msec.2016.05.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 04/13/2016] [Accepted: 05/11/2016] [Indexed: 11/20/2022]
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39
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Nanoporous anodic titanium dioxide layers as potential drug delivery systems: Drug release kinetics and mechanism. Colloids Surf B Biointerfaces 2016; 143:447-454. [DOI: 10.1016/j.colsurfb.2016.03.073] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/22/2016] [Accepted: 03/24/2016] [Indexed: 12/11/2022]
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40
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Kaur G, Willsmore T, Gulati K, Zinonos I, Wang Y, Kurian M, Hay S, Losic D, Evdokiou A. Titanium wire implants with nanotube arrays: A study model for localized cancer treatment. Biomaterials 2016; 101:176-88. [PMID: 27289379 DOI: 10.1016/j.biomaterials.2016.05.048] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 03/21/2016] [Accepted: 05/27/2016] [Indexed: 12/11/2022]
Abstract
Adverse complications associated with systemic administration of anti-cancer drugs are a major problem in cancer therapy in current clinical practice. To increase effectiveness and reduce side effects, localized drug delivery to tumour sites requiring therapy is essential. Direct delivery of potent anti-cancer drugs locally to the cancer site based on nanotechnology has been recognised as a promising alternative approach. Previously, we reported the design and fabrication of nano-engineered 3D titanium wire based implants with titania (TiO2) nanotube arrays (Ti-TNTs) for applications such as bone integration by using in-vitro culture systems. The aim of present study is to demonstrate the feasibility of using such Ti-TNTs loaded with anti-cancer agent for localized cancer therapy using pre-clinical cancer models and to test local drug delivery efficiency and anti-tumour efficacy within the tumour environment. TNF-related apoptosis-inducing ligand (TRAIL) which has proven anti-cancer properties was selected as the model drug for therapeutic delivery by Ti-TNTs. Our in-vitro 2D and 3D cell culture studies demonstrated a significant decrease in breast cancer cell viability upon incubation with TRAIL loaded Ti-TNT implants (TRAIL-TNTs). Subcutaneous tumour xenografts were established to test TRAIL-TNTs implant performance in the tumour environment by monitoring the changes in tumour burden over a selected time course. TRAIL-TNTs showed a significant regression in tumour burden within the first three days of implant insertion at the tumour site. Based on current experimental findings these Ti-TNTs wire implants have shown promising capacity to load and deliver anti-cancer agents maintaining their efficacy for cancer treatment.
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Affiliation(s)
- Gagandeep Kaur
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia; School of Medicine, Discipline of Surgery, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Tamsyn Willsmore
- School of Medicine, Discipline of Surgery, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Karan Gulati
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Irene Zinonos
- School of Medicine, Discipline of Surgery, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Ye Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Mima Kurian
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Shelley Hay
- School of Medicine, Discipline of Surgery, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Dusan Losic
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Andreas Evdokiou
- School of Medicine, Discipline of Surgery, The University of Adelaide, Adelaide, SA, 5005, Australia.
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41
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Gulati K, Johnson L, Karunagaran R, Findlay D, Losic D. In Situ Transformation of Chitosan Films into Microtubular Structures on the Surface of Nanoengineered Titanium Implants. Biomacromolecules 2016; 17:1261-71. [DOI: 10.1021/acs.biomac.5b01037] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Karan Gulati
- School of Chemical Engineering and §Discipline of Orthopaedics
and Trauma, University of Adelaide, Adelaide, SA, Australia
| | - Lucas Johnson
- School of Chemical Engineering and §Discipline of Orthopaedics
and Trauma, University of Adelaide, Adelaide, SA, Australia
| | - Ramesh Karunagaran
- School of Chemical Engineering and §Discipline of Orthopaedics
and Trauma, University of Adelaide, Adelaide, SA, Australia
| | - David Findlay
- School of Chemical Engineering and §Discipline of Orthopaedics
and Trauma, University of Adelaide, Adelaide, SA, Australia
| | - Dusan Losic
- School of Chemical Engineering and §Discipline of Orthopaedics
and Trauma, University of Adelaide, Adelaide, SA, Australia
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42
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Ray Chowdhuri A, Bhattacharya D, Sahu SK. Magnetic nanoscale metal organic frameworks for potential targeted anticancer drug delivery, imaging and as an MRI contrast agent. Dalton Trans 2016; 45:2963-73. [PMID: 26754449 DOI: 10.1039/c5dt03736k] [Citation(s) in RCA: 158] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The development of a novel multifunctional porous nanoplatform for targeted anticancer drug delivery with cell imaging and magnetic resonance imaging has been realised in the current work. Here we have developed a magnetic nanoscale metal organic frameworks (NMOF) for potential targeted drug delivery. These magnetic NMOFs were fabricated by incorporation of Fe3O4 nanoparticles into porous isoreticular metal organic frameworks (IRMOF-3). To achieve targeted drug delivery towards cancer cells specifically, folic acid was conjugated to the NMOF surface. Then, the fluorescent molecule rhodamine B isothiocyanate (RITC) was conjugated to the NMOFs for biological imaging applications. The synthesized magnetic NMOFs were fully characterised by FTIR, powder XRD, XPS, SQUID, TGA, TEM, FESEM, and DLS. The synthesized magnetic NMOFs were observed to be smaller than 100 nm and were found to be nontoxic towards human cervix adenocarcinoma (HeLa) and murine fibroblast (NIH3T3) cells according to cell viability assays. The cancer chemotherapy drug paclitaxel was conjugated to the magnetic NMOFs through hydrophobic interactions with a relatively high loading capacity. Moreover, these folic acid-conjugated magnetic NMOFs showed stronger T2-weighted MRI contrast towards the cancer cells, justifying their possible significance in imaging.
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43
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Gulati K, Maher S, Chandrasekaran S, Findlay DM, Losic D. Conversion of titania (TiO2) into conductive titanium (Ti) nanotube arrays for combined drug-delivery and electrical stimulation therapy. J Mater Chem B 2016; 4:371-375. [DOI: 10.1039/c5tb02108a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The conversion of titania (TiO2) nanotubes into titanium (Ti), while preserving their nanotubular structures is demonstrated for proposed application as bone implants and electrodes for combined local drug delivery and electrical stimulation therapy.
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Affiliation(s)
- Karan Gulati
- School of Chemical Engineering
- University of Adelaide
- Australia
| | - Shaheer Maher
- School of Chemical Engineering
- University of Adelaide
- Australia
- Faculty of Pharmacy
- Assiut University
| | | | - David M. Findlay
- Discipline of Orthopaedics and Trauma
- University of Adelaide
- Australia
| | - Dusan Losic
- School of Chemical Engineering
- University of Adelaide
- Australia
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44
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Rahman S, Gulati K, Kogawa M, Atkins GJ, Pivonka P, Findlay DM, Losic D. Drug diffusion, integration, and stability of nanoengineered drug-releasing implants in bone ex-vivo. J Biomed Mater Res A 2015; 104:714-725. [DOI: 10.1002/jbm.a.35595] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 10/13/2015] [Accepted: 10/16/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Shafiur Rahman
- School of Chemical Engineering; University of Adelaide; SA 5005 Australia
| | - Karan Gulati
- School of Chemical Engineering; University of Adelaide; SA 5005 Australia
| | - Masakazu Kogawa
- Discipline of Orthopaedics and Trauma; University of Adelaide; SA 5005 Australia
| | - Gerald J. Atkins
- Discipline of Orthopaedics and Trauma; University of Adelaide; SA 5005 Australia
| | - Peter Pivonka
- Australian Institute for Musculoskeletal Science, University of Melbourne; VIC 3021 Australia
| | - David M. Findlay
- Discipline of Orthopaedics and Trauma; University of Adelaide; SA 5005 Australia
| | - Dusan Losic
- School of Chemical Engineering; University of Adelaide; SA 5005 Australia
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45
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Gulati K, Kogawa M, Maher S, Atkins G, Findlay D, Losic D. Titania Nanotubes for Local Drug Delivery from Implant Surfaces. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/978-3-319-20346-1_10] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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46
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Hu T, Yang J, Cui K, Rao Q, Yin T, Tan L, Zhang Y, Li Z, Wang G. Controlled Slow-Release Drug-Eluting Stents for the Prevention of Coronary Restenosis: Recent Progress and Future Prospects. ACS APPLIED MATERIALS & INTERFACES 2015; 7:11695-11712. [PMID: 26011753 DOI: 10.1021/acsami.5b01993] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Drug-eluting stents (DES) have become more widely used by cardiologists than bare metal stents (BMS) because of their better ability to control restenosis. However, recognized negative events, particularly including delayed or incomplete endothelialization and late stent thrombosis, have caused concerns over the long-term safety of DES. Although stent-based drug delivery can facilitate a drug's release directly to the restenosis site, a burst of drug release can seriously affect the pharmacological action and is a major factor accounting for adverse effects. Therefore, the drug release rate has become an important criterion in evaluating DES. The factors affecting the drug release rate include the drug carrier, drug, coating methods, drug storage, elution direction, coating thickness, pore size in the coating, release conditions (release medium, pH value, temperature), and hemodynamics after the stent implantation. A better understanding of how these factors influence drug release is particularly important for the reasonable use of efficient control strategies for drug release. This review summarizes the factors influencing the drug release from DES and presents strategies for enhancing the control of the drug's release, including the stent design, the application of absorbable stents, the development of new polymers, and the application of nanocarriers and improvements in the coating technology. Therefore, this paper provides a reference for the preparation of novel controlled slow-release DES.
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Affiliation(s)
- Tingzhang Hu
- †Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), State and Local Joint Engineering Laboratory for Vascular Implants (Chongqing), Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Jiali Yang
- †Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), State and Local Joint Engineering Laboratory for Vascular Implants (Chongqing), Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Kun Cui
- ‡Center of Cardiology, Chongqing Zhongshan Hospital, Chongqing 400013, China
| | - Qiong Rao
- †Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), State and Local Joint Engineering Laboratory for Vascular Implants (Chongqing), Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Tieying Yin
- †Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), State and Local Joint Engineering Laboratory for Vascular Implants (Chongqing), Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Lili Tan
- †Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), State and Local Joint Engineering Laboratory for Vascular Implants (Chongqing), Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Yuan Zhang
- ‡Center of Cardiology, Chongqing Zhongshan Hospital, Chongqing 400013, China
| | - Zhenggong Li
- ‡Center of Cardiology, Chongqing Zhongshan Hospital, Chongqing 400013, China
| | - Guixue Wang
- †Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), State and Local Joint Engineering Laboratory for Vascular Implants (Chongqing), Bioengineering College of Chongqing University, Chongqing 400030, China
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47
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Wang J, Yang S, Gong J, Xu M, Adil M, Wang Y, Zhang Y, Song X, Zeng H. Simulating magnetic nanotubes using a chain of ellipsoid-rings model with a magnetization reversal process by fanning rotation. Phys Chem Chem Phys 2015; 17:10250-6. [PMID: 25798577 DOI: 10.1039/c5cp00181a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recently, magnetic nanotubes have attracted great attention owing to the advantages of tubular geometry. Of all the physical properties of magnetic nanotubes, the magnetic behavior plays a pivotal role in potential applications, particularly in biotechnology. Modeling magnetic nanotubes provides an effective way to determine the geometry dependent magnetic properties. In the present article, we model the nanotube as a chain of ellipsoid-rings; thus the magnetic behavior of nanotubes is simulated by the fanning rotation of magnetic moments. Based on this model, we further discuss the influence of tubular geometric parameters on the magnetic properties. The calculated magnetic properties of Fe, Co, Ni, Fe3O4 and CoFe2O4 nanotubes are all consistent with their experimental data. Consequently, our model provides an easy and general approach to magnetic nanotubes.
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Affiliation(s)
- Jieqiong Wang
- School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Collaborative Innovation Center of Suzhou Nano Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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48
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Law CS, Santos A, Kumeria T, Losic D. Engineered therapeutic-releasing nanoporous anodic alumina-aluminum wires with extended release of therapeutics. ACS APPLIED MATERIALS & INTERFACES 2015; 7:3846-3853. [PMID: 25625878 DOI: 10.1021/am5091963] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, we present a nanoengineered therapeutic-releasing system based on aluminum wires featuring nanoporous anodic alumina layers and chitosan coatings. Nanoporous anodic alumina layers are produced on the surface of aluminum wires by electrochemical anodization. These nanoporous layers with precisely engineered nanopore geometry are used as nanocontainers for bovine serum albumin molecules labeled with fluorescein isothiocyanate (BSA-FITC), which is selected as a model drug. The surface of these therapeutic-releasing implants is coated with a biocompatible and biodegradable polymer, chitosan, in order to achieve a sustained release of protein over extended periods of time. The performance of this therapeutic-releasing device is systematically assessed through a series of experiments under static and dynamic flow conditions. In these experiments, the effect of such parameters as the number of layers of chitosan coating and the temperature and pH of the eluting medium is established. The obtained results reveal that the proposed therapeutic-releasing system based on nanoporous aluminum wires can be engineered with sustained release performance for up to 6.5 weeks, which is a critical factor for medical treatments using sensitive therapeutics such as proteins and genes when a localized delivery is desired.
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Affiliation(s)
- Cheryl Suwen Law
- School of Chemical Engineering, The University of Adelaide , Adelaide, SA 5005, Australia
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49
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Tsai MH, Peng CL, Yao CJ, Shieh MJ. Enhanced efficacy of chemotherapeutic drugs against colorectal cancer using ligand-decorated self-breakable agents. RSC Adv 2015. [DOI: 10.1039/c5ra16175d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Targeting self-breakable micelles could facilitate Caco2 cancer cells in acidic tumor microenvironment to take up SN38 which the micelle loaded with and trigger drug release in cancer cells, resulting in enhanced drug efficacy.
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Affiliation(s)
- Ming-Hsien Tsai
- Institute of Biomedical Engineering
- College of Medicine and College of Engineering
- National Taiwan University
- Taipei
- Taiwan
| | - Cheng-Liang Peng
- Isotope Application Division
- Institute of Nuclear Energy Research
- Taoyuan
- Taiwan
| | - Cheng-Jung Yao
- Division of Gastroenterology
- Department of Internal Medicine
- Wan Fang Hospital
- Taipei Medical University
- Taiwan
| | - Ming-Jium Shieh
- Institute of Biomedical Engineering
- College of Medicine and College of Engineering
- National Taiwan University
- Taipei
- Taiwan
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50
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Cheng H, Mao L, Xu X, Zeng Y, Lan D, Hu H, Wu X, You H, Yang X, Li R, Zhu Z. The bifunctional regulation of interconnected Zn-incorporated ZrO2 nanoarrays in antibiosis and osteogenesis. Biomater Sci 2015. [DOI: 10.1039/c4bm00263f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Bifunctional regulation in antibiosis and osteogenesis is obtained using well-organized Zn-incorporated ZrO2 nanoarrays with interconnected internal space.
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