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Picco CJ, Utomo E, McClean A, Domínguez-Robles J, Anjani QK, Volpe-Zanutto F, McKenna PE, Acheson JG, Malinova D, Donnelly RF, Larrañeta E. Development of 3D-printed subcutaneous implants using concentrated polymer/drug solutions. Int J Pharm 2023; 631:122477. [PMID: 36509226 DOI: 10.1016/j.ijpharm.2022.122477] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Implantable drug-eluting devices that provide therapeutic cover over an extended period of time following a single administration have potential to improve the treatment of chronic conditions. These devices eliminate the requirement for regular and frequent drug administration, thus reducing the pill burden experienced by patients. Furthermore, the use of modern technologies, such as 3D printing, during implant development and manufacture renders this approach well-suited for the production of highly tuneable devices that can deliver treatment regimens which are personalised for the individual. The objective of this work was to formulate subcutaneous implants loaded with a model hydrophobic compound, olanzapine (OLZ) using robocasting - a 3D-printing technique. The formulated cylindrical implants were prepared from blends composed of OLZ mixed with either poly(caprolactone) (PCL) or a combination of PCL and poly(ethylene)glycol (PEG). Implants were characterised using scanning electron microscopy (SEM), thermal analysis, infrared spectroscopy, and X-ray diffraction and the crystallinity of OLZ in the formulated devices was confirmed. In vitro release studies demonstrated that all the formulations were capable of maintaining sustained drug release over a period of 200 days, with the maximum percentage drug release observed to be c.a. 60 % in the same period.
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Affiliation(s)
- Camila J Picco
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Emilia Utomo
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Andrea McClean
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Juan Domínguez-Robles
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Qonita Kurnia Anjani
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Fabiana Volpe-Zanutto
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Peter E McKenna
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Jonathan G Acheson
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, United Kingdom
| | - Dessislava Malinova
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Eneko Larrañeta
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom.
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2
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Ghodhbane M, Menassol G, Beneventi D, Chaussy D, Dubois L, Zebda A, Belgacem MN. Flexible doctor blade-coated abiotic cathodes for implantable glucose/oxygen biofuel cells. RSC Adv 2023; 13:3877-3889. [PMID: 36756603 PMCID: PMC9890629 DOI: 10.1039/d2ra03471a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 11/21/2022] [Indexed: 01/28/2023] Open
Abstract
Implantable devices powered by batteries have been used for sixty years. In recent devices, lithium-based batteries are the most widely used power source. However, lithium batteries have many disadvantages in terms of safety, reliability, and longevity and require regular monitoring and substitution. Implantable glucose biofuel cells (BFCs) are increasingly seen as a potential future technology for replacing lithium-based batteries because they do not require surgical replacement after 8-10 years and have a theoretically unlimited lifetime thanks to the continued recovery of glucose and oxygen present in the human body. This paper shows the fabrication of flexible implantable abiotic cathodes, based on a nitrogen/iron-doped graphene catalyst, for glucose/oxygen biofuel cell application. An ink, based on nitrogen-iron doped graphene as the abiotic catalyst and chitosan as a binder, was prepared and coated on a flexible teflonated gas diffusion layer using doctor blade coating. The characterization of the biocathode shows an open potential circuit corresponding to the potential of the abiotic catalyst and a high oxygen reduction current density of up to 66 μA cm-2 under physiological conditions. Those cathodes remain stable for up to two years with a current density loss of only 25%. The flexible abiotic electrode cytotoxicity was evaluated by cell culture experiments showing living cells' high tolerance on the biocathode surface. This work demonstrates that this abiotic catalyst can be a promising alternative for the development of implantable glucose BFCs due to its stability and its cytocompatibility.
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Affiliation(s)
- Myriam Ghodhbane
- Univ. Grenoble Alpes, CNRS, Grenoble INP, Institute of Engineering Univ. Grenoble Alpes, LGP2Grenoble 38000France,Univ. Grenoble Alpes/CNRS/INSERM/TIMC-IMAG UMR 5525Grenoble38000France
| | - Gauthier Menassol
- Univ. Grenoble Alpes/CNRS/INSERM/TIMC-IMAG UMR 5525Grenoble38000France,Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMESGrenoble 38000France
| | - Davide Beneventi
- Univ. Grenoble Alpes, CNRS, Grenoble INP, Institute of Engineering Univ. Grenoble Alpes, LGP2Grenoble 38000France
| | - Didier Chaussy
- Univ. Grenoble Alpes, CNRS, Grenoble INP, Institute of Engineering Univ. Grenoble Alpes, LGP2Grenoble 38000France
| | - Lionel Dubois
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMESGrenoble 38000France
| | - Abdelkader Zebda
- Univ. Grenoble Alpes/CNRS/INSERM/TIMC-IMAG UMR 5525Grenoble38000France
| | - Mohamed Naceur Belgacem
- Univ. Grenoble Alpes, CNRS, Grenoble INP, Institute of Engineering Univ. Grenoble Alpes, LGP2Grenoble 38000France
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3
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Picco CJ, Domínguez-Robles J, Utomo E, Paredes AJ, Volpe-Zanutto F, Malinova D, Donnelly RF, Larrañeta E. 3D-printed implantable devices with biodegradable rate-controlling membrane for sustained delivery of hydrophobic drugs. Drug Deliv 2022; 29:1038-1048. [PMID: 35363100 PMCID: PMC8979538 DOI: 10.1080/10717544.2022.2057620] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Implantable drug delivery systems offer an alternative for the treatments of long-term conditions (i.e. schizophrenia, HIV, or Parkinson’s disease among many others). The objective of the present work was to formulate implantable devices loaded with the model hydrophobic drug olanzapine (OLZ) using robocasting 3D-printing combined with a pre-formed rate controlling membrane. OLZ was selected as a model molecule due to its hydrophobic nature and because is a good example of a molecule used to treat a chronic condition schizophrenia. The resulting implants consisted of a poly(ethylene oxide) (PEO) implant coated with a poly(caprolactone) (PCL)-based membrane. The implants were loaded with 50 and 80% (w/w) of OLZ. They were prepared using an extrusion-based 3D-printer from aqueous pastes containing 36–38% (w/w) of water. The printing process was carried out at room temperature. The resulting implants were characterized by using infrared spectroscopy, scanning electron microscopy, thermal analysis, and X-ray diffraction. Crystals of OLZ were present in the implant after the printing process. In vitro release studies showed that implants containing 50% and 80% (w/w) of OLZ were capable of providing drug release for up to 190 days. On the other hand, implants containing 80% (w/w) of OLZ presented a slower release kinetics. After 190 days, total drug release was ca. 77% and ca. 64% for implants containing 50% and 80% (w/w) of OLZ, respectively. The higher PEO content within implants containing 50% (w/w) of OLZ allows a faster release as this polymer acts as a co-solvent of the drug.
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Affiliation(s)
- Camila J Picco
- School of Pharmacy, Queen's University Belfast, Belfast, UK
| | | | - Emilia Utomo
- School of Pharmacy, Queen's University Belfast, Belfast, UK
| | | | | | - Dessislava Malinova
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
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4
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In Vitro Studies Regarding the Safety of Chitosan and Hyaluronic Acid-Based Nanohydrogels Containing Contrast Agents for Magnetic Resonance Imaging. Int J Mol Sci 2022; 23:ijms23063258. [PMID: 35328678 PMCID: PMC8955704 DOI: 10.3390/ijms23063258] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/06/2022] [Accepted: 03/15/2022] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to investigate the biocompatibility of contrast agents, such as gadolinium 1, 4, 7, 10 tetraazacyclo-dodecane tetraacetic acid (GdDOTA) and gadolinium dioctyl terephthalate (GdDOTP), encapsulated in a polymeric matrix containing chitosan and hyaluronic acid using RAW264.7 murine macrophages and human blood samples. The cell viability and cytotoxicity were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and lactate dehydrogenase (LDH) assays, while cell cycle analysis was determined in RAW264.7 cells using flow cytometry. The mitochondrial membrane potential (MMP), hemolytic index, complement activation, and thrombogenic potential of gadolinium (Gd) containing nanohydrogels were measured by fluorometric and spectrophotometric methods. Taken together, our results demonstrate the good bio- and hemocompatibility of chitosan-based nanohydrogels with the RAW264.7 cell line and human blood cells, suggesting that these could be used as injectable formulations for the magnetic resonance imaging diagnostic of lymph nodes.
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Guo J, Jiang H, Teng Y, Xiong Y, Chen Z, You L, Xiao D. Recent advances in magnetic carbon nanotubes: synthesis, challenges and highlighted applications. J Mater Chem B 2021; 9:9076-9099. [PMID: 34668920 DOI: 10.1039/d1tb01242h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Magnetic carbon nanotubes (MCNTs), consisting of carbon nanotubes (CNTs) and magnetic nanoparticles (MNPs), have enormous exploration and application potentials due to their superior physical and chemical properties, such as unique magnetism and high enrichment performance. This review concentrates on the rapid advances in the synthesis and application of magnetic carbon nanotubes. Great progress has been made in the preparation of MCNTs by developing methods including chemical vapor deposition, pyrolysis procedure, sol-gel process, template-based synthesis, filling process and hydrothermal/solvothermal method. Various applications of MCNTs as a mediator of the adsorbent in magnetic solid-phase extraction, sensors, antibacterial agents, and imaging system contrast agents, and in drug delivery and catalysis are discussed. In order to overcome the drawbacks of MCNTs, such as sidewall damage, lack of convincing quantitative characterization methods, toxicity and environmental impact, and deficiency of extraction performance, researchers proposed some solutions in recent years. We systematically review the latest advances in MCNTs and discuss the direction of future development.
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Affiliation(s)
- Jiabei Guo
- Department of Analytical Chemistry, China Pharmaceutical University, 24 Tongjia Lane, Nanjing 210009, China.
| | - Hui Jiang
- Department of Analytical Chemistry, China Pharmaceutical University, 24 Tongjia Lane, Nanjing 210009, China.
| | - Yan Teng
- Department of Analytical Chemistry, China Pharmaceutical University, 24 Tongjia Lane, Nanjing 210009, China.
| | - Yue Xiong
- Department of Analytical Chemistry, China Pharmaceutical University, 24 Tongjia Lane, Nanjing 210009, China.
| | - Zhuhui Chen
- Department of Analytical Chemistry, China Pharmaceutical University, 24 Tongjia Lane, Nanjing 210009, China.
| | - Linjun You
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, 24 Tongjia Lane, Nanjing 210009, China.
| | - Deli Xiao
- Department of Analytical Chemistry, China Pharmaceutical University, 24 Tongjia Lane, Nanjing 210009, China. .,Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, 24 Tongjia Lane, Nanjing 210009, China.,Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, 24 Tongjia Lane, Nanjing 210009, China
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6
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Rodríguez-Galván A, Rivera M, García-López P, Medina LA, Basiuk VA. Gadolinium-containing carbon nanomaterials for magnetic resonance imaging: Trends and challenges. J Cell Mol Med 2020; 24:3779-3794. [PMID: 32154648 PMCID: PMC7171414 DOI: 10.1111/jcmm.15065] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 12/18/2019] [Accepted: 01/27/2020] [Indexed: 02/06/2023] Open
Abstract
Gadolinium-containing carbon nanomaterials are a new class of contrast agent for magnetic resonance imaging. They are characterized by a superior proton relaxivity to any current commercial gadolinium contrast agent and offer the possibility to design multifunctional contrasts. Intense efforts have been made to develop these nanomaterials because of their potential for better results than the available gadolinium contrast agents. The aim of the present work is to provide a review of the advances in research on gadolinium-containing carbon nanomaterials and their advantages over conventional gadolinium contrast agents. Due to their enhanced proton relaxivity, they can provide a reliable imaging contrast for cells, tissues or organs with much smaller doses than currently used in clinical practice, thus leading to reduced toxicity (as shown by cytotoxicity and biodistribution studies). Their active targeting capability allows for improved MRI of molecular or cellular targets, overcoming the limited labelling capability of available contrast agents (restricted to physiological irregularities during pathological conditions). Their potential of multifunctionality encompasses multimodal imaging and the combination of imaging and therapy.
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Affiliation(s)
- Andrés Rodríguez-Galván
- Unidad de Investigación Biomédica en Cáncer INCan-UNAM, Instituto Nacional de Cancerología, Ciudad de Méxi, Mexico.,Carrera de Biología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Mexico
| | - Margarita Rivera
- Instituto de Física, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, Mexico
| | - Patricia García-López
- Laboratorio de Farmacología, Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Ciudad de México, Mexico
| | - Luis A Medina
- Unidad de Investigación Biomédica en Cáncer INCan-UNAM, Instituto Nacional de Cancerología, Ciudad de Méxi, Mexico.,Instituto de Física, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, Mexico
| | - Vladimir A Basiuk
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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7
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Naskhi A, Jabbari S, Othman GQ, Aziz FM, Salihi A, Sharifi M, Sari S, Akhtari K, Abdulqadir SZ, Alasady AA, Abou-Zied OK, Hasan A, Falahati M. Vitamin K1 As A Potential Molecule For Reducing Single-Walled Carbon Nanotubes-Stimulated α-Synuclein Structural Changes And Cytotoxicity. Int J Nanomedicine 2019; 14:8433-8444. [PMID: 31749617 PMCID: PMC6818677 DOI: 10.2147/ijn.s223182] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 10/09/2019] [Indexed: 11/23/2022] Open
Abstract
Aims Different kinds of vitamins can be used as promising candidates to mitigate the structural changes of proteins and associated cytotoxicity stimulated by NPs. Therefore, the structural changes of α-syn molecules and their associated cytotoxicity in the presence of SWCNTs either alone or co-incubated with vitamin K1 were studied by spectroscopic, bioinformatical, and cellular assays. Methods Intrinsic and ThT fluorescence, CD, and Congo red absorption spectroscopic approaches as well as TEM investigation, molecular docking, and molecular dynamics were used to explore the protective effect of vitamin K1 on the structural changes of α-syn induced by SWCNTs. The cytotoxicity of α-syn/SWCNTs co-incubated with vitamin K1 against SH-SY5Y cells was also carried out by MTT, LDH, and caspase-3 assays. Results Fluorescence spectroscopy showed that vitamin K1 has a significant effect in reducing SWCNT-induced fluorescence quenching and aggregation of α- syn. CD, Congo red adsorption, and TEM investigations determined that co-incubation of α- syn with vitamin K1 inhibited the propensity of α-syn into the structural changes and amorphous aggregation in the presence of SWCNT. Docking studies determined the occupation of preferred docked site of SWCNT by vitamin K1 on α- syn conformation. A molecular dynamics study also showed that vitamin K1 reduced the structural changes of α- syn induced by SWCNT. Cellular data exhibited that the cytotoxicity of α- syn co-incubated with vitamin K1 in the presence of SWCNTs is less than the outcomes obtained in the absence of the vitamin K1. Conclusion It may be concluded that vitamin K1 decreases the propensity of α- syn aggregation in the presence of SWCNTs and induction of cytotoxicity.
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Affiliation(s)
- Amitis Naskhi
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sanaz Jabbari
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Goran Qader Othman
- Department of Medical Laboratory, Health Technical College, Erbil Polytechnic University, Erbil, Iraq
| | - Falah Mohammad Aziz
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq.,Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Soyar Sari
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Keivan Akhtari
- Department of Physics, University of Kurdistan, Sanandaj, Iran
| | - Shang Ziyad Abdulqadir
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Asaad Ab Alasady
- Anatomy, Histology, and Embryology Unit, College of Medicine, University of Duhok, Kurdistan Region, Iraq
| | - Osama K Abou-Zied
- Department of Chemistry, Faculty of Science, Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha 2713, Qatar.,Biomedical Research Center, Qatar University, Doha 2713, Qatar
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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8
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Lakshmi S, Avti PK, Hegde G. Activated carbon nanoparticles from biowaste as new generation antimicrobial agents: A review. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.nanoso.2018.08.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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9
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Zhang G, Du R, Qian J, Zheng X, Tian X, Cai D, He J, Wu Y, Huang W, Wang Y, Zhang X, Zhong K, Zou D, Wu Z. A tailored nanosheet decorated with a metallized dendrimer for angiography and magnetic resonance imaging-guided combined chemotherapy. NANOSCALE 2017; 10:488-498. [PMID: 29231948 DOI: 10.1039/c7nr07957e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Considering the chemical exchange between gadolinium centers and water protons, nanosystems comprising gadolinium conjugated with high specific area nanocarriers might serve as more robust clinical tools for diagnosis and imaging-guided therapy. Herein, a pH-responsive nanosystem containing graphene oxide conjugated with a folic acid- and gadolinium-labeled dendrimer (FA-GCGLD) to boost its T1 contrast ability was developed, and doxorubicin (DOX) and colchicine (COLC) were efficiently loaded onto this nanosystem (FA-GCGLD-DOX/COLC). This nanosystem showed a prominent T1 contrast with an ultrahigh relaxivity of up to 11.6 mM-1 s-1 and pH-responsive drug release behavior. HepG2 cells treated with FA-GCGLD-DOX/COLC were efficiently inhibited, and the cell contrast was enhanced. In vivo, the tumor accumulation of FA-GCGLD-DOX/COLC significantly increased, thereby facilitating the systemic delivery of particles and exerting tumor growth inhibition and an enhanced tumor contrast effect. Moreover, compared to free drugs, FA-GCGLD-DOX/COLC effectively decreased the drug resistance of the tumor, thereby improving the cancer chemotherapeutic efficacy. In addition, injecting rats with FA-GCGLD afforded excellent magnetic resonance angiography (MRA) images with high-resolution vascular structures because of the long blood circulation time of FA-GCGLD. Thus, this study provides a powerful tool for diverse applications in the biomedical field, including accurate diagnosis and chemotherapy of tumors and the detection of cardiovascular diseases.
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Affiliation(s)
- Guilong Zhang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China.
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10
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Lalwani G, D'agati M, Gopalan A, Patel SC, Talukdar Y, Sitharaman B. Three-dimensional carbon nanotube scaffolds for long-term maintenance and expansion of human mesenchymal stem cells. J Biomed Mater Res A 2017; 105:1927-1939. [DOI: 10.1002/jbm.a.36062] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/02/2017] [Accepted: 03/07/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Gaurav Lalwani
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Michael D'agati
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Anu Gopalan
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Sunny C. Patel
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Yahfi Talukdar
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Balaji Sitharaman
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
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11
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Gheran CV, Voicu SN, Rigaux G, Callewaert M, Chuburu F, Dinischiotu A. Biological effects induced by Gadolinium nanoparticles on Lymphocyte A20 cell line. THE EUROBIOTECH JOURNAL 2017. [DOI: 10.24190/issn2564-615x/2017/01.09] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract
Gadolinium nanoparticles (GdNPs) are potential agents for MRI of lymph nodes. The aim of this study was to evaluate the in vitro effects of 1 μM, 2.5 μM and 5 μM of GdDOTA⊂CS-TPP/HA and GdDOTP⊂CS-TPP/HA NPs on A20 lymphocyte cells exposed for 6 and 24 hours. The total cellular biomass (SRB), lactate dehydrogenase activity (LDH) and oxidative stress parameters, such as reactive oxygen species generation (ROS), reduced glutathione (GSH), malondialdehyde (MDA) and advanced oxidation protein products (AOPP) were analyzed by spectrophotometric and fluorimetric methods. After cells exposure to 1 μM, 2.5 μM and 5 μM of GdDOTP⊂CS-TPP/HA NPs their viability decreased in a time- and dose-dependent manner, whereas for GdDOTA⊂CS-TPP/HA no significant changes were noticed. Both NPs formulations in doses of 1 μM, 2.5 μM, 5 μM did not affect the plasma membrane at each time point tested. The levels of ROS, MDA and AOPP increased proportionally with the concentration and exposure time. GSH concentration decreased significantly for all doses of both NPs tested. Taken together our data suggest that, GdDOTP⊂CS-TPP/HA and GdDOTA⊂CS-TPP/HA NPs induced oxidative stress in A20 lymphocyte cells which was counteracted by the cells antioxidant defense system to a certain extend.
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Affiliation(s)
- Cecilia Virginia Gheran
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest , Romania
| | - Sorina Nicoleta Voicu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest , Romania
- Department of Pharmacy, Faculty of Pharmacy, Titu Maiorescu University, Bucharest , Romania
| | - Guillaume Rigaux
- Institut de Chimie Moleculaire de Reims, CNRS UMR 7312, Universite de Reims Champagne-Ardenne URCA, 51685 Reims Cedex 2, France
| | - Maite Callewaert
- Institut de Chimie Moleculaire de Reims, CNRS UMR 7312, Universite de Reims Champagne-Ardenne URCA, 51685 Reims Cedex 2, France
| | - Francoise Chuburu
- Institut de Chimie Moleculaire de Reims, CNRS UMR 7312, Universite de Reims Champagne-Ardenne URCA, 51685 Reims Cedex 2, France
| | - Anca Dinischiotu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest , Romania
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12
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Hernández-Rivera M, Zaibaq NG, Wilson LJ. Toward carbon nanotube-based imaging agents for the clinic. Biomaterials 2016; 101:229-40. [DOI: 10.1016/j.biomaterials.2016.05.045] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/12/2016] [Accepted: 05/24/2016] [Indexed: 10/21/2022]
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13
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Lalwani G, D'agati M, Gopalan A, Rao M, Schneller J, Sitharaman B. Three-dimensional macroporous graphene scaffolds for tissue engineering. J Biomed Mater Res A 2016; 105:73-83. [PMID: 27529473 DOI: 10.1002/jbm.a.35867] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 07/28/2016] [Accepted: 08/10/2016] [Indexed: 12/12/2022]
Abstract
The assembly of carbon nanomaterials into three-dimensional (3D) porous scaffolds is critical to harness their unique physiochemical properties for tissue engineering and regenerative medicine applications. In this study, we report the fabrication, characterization, and in vitro cytocompatibility of true 3D (>1 mm in all three dimensions), macroscopic (3-8 mm in height and 4-6 mm in diameter), chemically cross-linked graphene scaffolds prepared via radical initiated thermal cross-linking of single- and multiwalled graphene oxide nanoribbons (SWGONRs and MWGONRs). SWGONR and MWGONR scaffolds possess tunable porosity (∼65-80%) and interconnected macro-, micro-, and nanoscale pores. Human adipose derived stem cells (ADSCs) and murine MC3T3 preosteoblast cells show good cell viability on SWGONR and MWGONR scaffolds after 1, 3, and 5 days comparable to 3D poly(lactic-co-glycolic) acid (PLGA) scaffolds. Confocal live-cell imaging showed that cells were metabolically active and could spread on SWGONR and MWGONR scaffolds. Immunofluorescence imaging showed the presence of focal adhesion protein vinculin and expression of cell proliferation marker Ki-67 suggesting that cells could attach and proliferate on SWGONR and MWGONR scaffolds. These results indicate that cross-linked SWGONR and MWGONR scaffolds are cytocompatible and opens-avenues toward the development of 3D multifunctional graphene scaffolds for tissue engineering applications. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 73-83, 2017.
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Affiliation(s)
- Gaurav Lalwani
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
| | - Michael D'agati
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
| | - Anu Gopalan
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
| | - Manisha Rao
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
| | - Jessica Schneller
- Department of Bioengineering, National Institutes of Health, Bethesda, Maryland, 20892
| | - Balaji Sitharaman
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794-5281
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14
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Al Faraj A. SWCNTs as novel theranostic nanocarriers for cancer diagnosis and therapy: towards safe translation to the clinics. Nanomedicine (Lond) 2016; 11:1431-45. [DOI: 10.2217/nnm-2016-0065] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
With their unique physicochemical properties, single walled carbon nanotubes (SWCNTs) hold great promise for applications as drug delivery systems (DDS) for early and better diagnosis and therapy of cancer. While several in vitro and in vivo studies have validated their potential benefit, no SWCNT-based formulation has yet reached clinical trials. Towards prospective safe clinical applications, the main properties that were adopted to enhance the biocompatibility of SWCNTs were highlighted. Then, the recent progresses in the in vivo applications of SWCNTs as diagnostic nanoprobes using multimodality imaging techniques and as therapeutic nanocarriers delivering wide range of anticancer efficient drugs to tumors were reviewed. Finally, the efforts required for safe clinical applications of SWCNTs as DDS for cancer diagnosis and therapy were discussed.
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Affiliation(s)
- Achraf Al Faraj
- Department of Radiological Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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15
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Kim EJ, Bhuniya S, Lee H, Kim HM, Shin WS, Kim JS, Hong KS. In Vivo Tracking of Phagocytic Immune Cells Using a Dual Imaging Probe with Gadolinium-Enhanced MRI and Near-Infrared Fluorescence. ACS APPLIED MATERIALS & INTERFACES 2016; 8:10266-10273. [PMID: 27058603 DOI: 10.1021/acsami.6b03344] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A novel dual imaging probe for in vivo magnetic resonance imaging (MRI) and optical imaging was developed by combining gadolinium (Gd)-chelating MR probe and a near-infrared (NIR) fluorophore, aza-BODIPY (AB; BODIPY = boron-dipyrromethene). This aza-BODIPY-based bimodal contrast agent (AB-BCA) showed a significant fluorescence emission around the NIR range and an enhanced longitudinal relaxivity in MR modality. The probe was easily delivered to phagocytic cells of the innate immune system, together with macrophages and dendritic cells (DCs), and presented high-performance fluorescence and MR imaging without obvious cytotoxicity. For in vivo visualization of AB-BCA using MRI and optical imaging, bone marrow-derived DCs were labeled and injected into the footpad of mice, and labeled DCs were tracked in vivo. We observed the migration of AB-BCA-labeled DCs into the lymph nodes via lymphatic vessels using NIR fluorescence and T1-weighted MR images. This dual-modality imaging probe was used for noninvasive monitoring of DC migration into lymph nodes and could be useful for investigating advanced cellular immunotherapy.
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Affiliation(s)
- Eun-Joong Kim
- Bioimaging Research Team, Korea Basic Science Institute , Cheongju 28119, Korea
| | | | - Hyunseung Lee
- Bioimaging Research Team, Korea Basic Science Institute , Cheongju 28119, Korea
| | - Hyun Min Kim
- Bioimaging Research Team, Korea Basic Science Institute , Cheongju 28119, Korea
| | - Weon Sup Shin
- Department of Chemistry, Korea University , Seoul 02841, Korea
| | - Jong Seung Kim
- Department of Chemistry, Korea University , Seoul 02841, Korea
| | - Kwan Soo Hong
- Bioimaging Research Team, Korea Basic Science Institute , Cheongju 28119, Korea
- Graduate School of Analytical Science and Technology, Chungnam National University , Daejeon 34134, Korea
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16
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Huzil JT, Saliaj E, Ivanova MV, Gharagozloo M, Loureiro MJ, Lamprecht C, Korinek A, Chen DW, Foldvari M. Selective nuclear localization of siRNA by metallic versus semiconducting single wall carbon nanotubes in keratinocytes. Future Sci OA 2015; 1:FSO17. [PMID: 28031892 PMCID: PMC5137862 DOI: 10.4155/fso.15.15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The potential use of carbon nanotubes (CNTs) in gene therapy as delivery systems for nucleic acids has been recently recognized. Here, we describe that metallic versus semiconducting single-wall CNTs can produce significant differences in transfection rate and cellular distribution of siRNA in murine PAM212 keratinocytes. RESULTS/METHODOLOGY The results of cell interaction studies, coupled with supportive computational simulations and ultrastructural studies revealed that the use of metallic single wall CNTs resulted in siRNA delivery into both the cytoplasm and nucleus of keratinocytes, whereas semiconducting CNTs resulted in delivery only to the cytoplasm. CONCLUSION Using enriched fractions of metallic or semiconducting CNTs for siRNA complex preparation may provide specific subcellular targeting advantages.
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Affiliation(s)
- John Torin Huzil
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Evi Saliaj
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Marina V Ivanova
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Marjan Gharagozloo
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Maria Jimena Loureiro
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Constanze Lamprecht
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Andreas Korinek
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
- Canadian Centre for Electron Microscopy, McMaster University, 1280 Main St. W, Hamilton, ON L8S 4L8, Canada
| | - Ding Wen Chen
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Marianna Foldvari
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
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17
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Calcio Gaudino E, Tagliapietra S, Martina K, Barge A, Lolli M, Terreno E, Lembo D, Cravotto G. A novel SWCNT platform bearing DOTA and β-cyclodextrin units. "One shot" multidecoration under microwave irradiation. Org Biomol Chem 2015; 12:4708-15. [PMID: 24872207 DOI: 10.1039/c4ob00611a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The functionalization of single-walled carbon nanotubes (SWCNTs) via microwave-assisted grafting reactions enables efficient multidecoration in a single step. A novel water-soluble SWCNT platform was prepared via the simple 1,3-dipolar cycloaddition of azomethine ylides under dielectric heating. Thanks to a single grafting reaction the CNT surface binds in a 1 : 1 ratio an amino acidic β-cyclodextrin (β-CD) derivative and the DOTAMA moiety (1,4,7,10-tetraazacyclododecane-N,N',N'',N'''-tetraacetic acid monoamide). This novel "one shot" synthesis, compared with multistep functionalizations, preserves the SWCNT's structural integrity (TEM images). Besides thermogravimetric analyses, the determination of the amount of β-CD and DOTA moieties grafting onto the SWCNT's surface was performed on the basis of phenolphthalein and gadolinium complexation, respectively.
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Affiliation(s)
- E Calcio Gaudino
- Dipartimento di Scienza e Tecnologia del Farmaco, and Interdepartmental Centre "Nanostructured Interfaces and Surfaces" - NIS, University of Turin, Via P. Giuria 9, 10125 Torino, Italy.
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18
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Lalwani G, Gopalan A, D’Agati M, Sankaran JS, Judex S, Qin YX, Sitharaman B. Porous three-dimensional carbon nanotube scaffolds for tissue engineering. J Biomed Mater Res A 2015; 103:3212-25. [PMID: 25788440 PMCID: PMC4552611 DOI: 10.1002/jbm.a.35449] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 02/18/2015] [Accepted: 03/12/2015] [Indexed: 12/18/2022]
Abstract
Assembly of carbon nanomaterials into three-dimensional (3D) architectures is necessary to harness their unique physiochemical properties for tissue engineering and regenerative medicine applications. Herein, we report the fabrication and comprehensive cytocompatibility assessment of 3D chemically crosslinked macrosized (5-8 mm height and 4-6 mm diameter) porous carbon nanotube (CNT) scaffolds. Scaffolds prepared via radical initiated thermal crosslinking of single- or multiwalled CNTs (SWCNTs and MWCNTs) possess high porosity (>80%), and nano-, micro-, and macroscale interconnected pores. MC3T3 preosteoblast cells on MWCNT and SWCNT scaffolds showed good cell viability comparable to poly(lactic-co-glycolic) acid (PLGA) scaffolds after 5 days. Confocal live cell and immunofluorescence imaging showed that MC3T3 cells were metabolically active and could attach, proliferate, and infiltrate MWCNT and SWCNT scaffolds. SEM imaging corroborated cell attachment and spreading and suggested that cell morphology is governed by scaffold surface roughness. MC3T3 cells were elongated on scaffolds with high surface roughness (MWCNTs) and rounded on scaffolds with low surface roughness (SWCNTs). The surface roughness of scaffolds may be exploited to control cellular morphology and, in turn, govern cell fate. These results indicate that crosslinked MWCNTs and SWCNTs scaffolds are cytocompatible, and open avenues toward development of multifunctional all-carbon scaffolds for tissue engineering applications.
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Affiliation(s)
- Gaurav Lalwani
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281
| | - Anu Gopalan
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281
| | - Michael D’Agati
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281
| | | | - Stefan Judex
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281
| | - Yi-Xian Qin
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281
| | - Balaji Sitharaman
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281
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19
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Holt BD, Law JJ, Boyer PD, Wilson LJ, Dahl KN, Islam MF. Subcellular Partitioning and Analysis of Gd3+-Loaded Ultrashort Single-Walled Carbon Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2015; 7:14593-602. [PMID: 26098461 DOI: 10.1021/acsami.5b04851] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Magnetic resonance imaging (MRI) is of vast clinical utility, with tens of millions of scans performed annually. Chemical contrast agents (CAs) can greatly enhance the diagnostic potential of MRI, and ∼50% of MRI scans use CAs. However, CAs have significant limitations such as low contrast enhancement, lack of specificity, and potential toxicity. Recently developed, Gd3+-loaded ultrashort single-walled carbon nanotubes, also referred to as gadonanotubes or GNTs, exhibit ∼40 times the relaxivities of clinical CAs, representing a potential major advance in clinically relevant MRI CA materials. Although initial cytotoxicity and MRI studies have suggested great promise for GNTs, relatively little is known regarding their subcellular interactions, which are crucial for further, safe development of GNTs as CAs. In this work, we administered GNTs to a well-established human cell line (HeLa) and to murine macrophage-like cells (J774A.1). GNTs were not acutely cytotoxic and did not reduce proliferation, except for the highest exposure concentration of 27 μg/mL for J774A.1 macrophages, yet bulk uptake of GNTs occurred in minutes at picogram quantities, or millions of GNTs per cell. J774A.1 macrophages internalized substantially more GNTs than HeLa cells in a dose-dependent manner, and Raman imaging of the subcellular distribution of GNTs revealed perinuclear localization. Fluorescence intensity and lifetime imaging demonstrated that GNTs did not grossly alter subcellular compartments, including filamentous-actin structures. Together, these results provide subcellular evidence necessary to establish GNTs as a new MRI CA material.
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Affiliation(s)
| | - Justin J Law
- ‡Department of Chemistry and Smalley Center for Nanoscale Science and Technology, Rice University, Houston, Texas 77251, United States
| | | | - Lon J Wilson
- ‡Department of Chemistry and Smalley Center for Nanoscale Science and Technology, Rice University, Houston, Texas 77251, United States
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20
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Charwat V, Schütze K, Holnthoner W, Lavrentieva A, Gangnus R, Hofbauer P, Hoffmann C, Angres B, Kasper C. Potential and limitations of microscopy and Raman spectroscopy for live-cell analysis of 3D cell cultures. J Biotechnol 2015; 205:70-81. [DOI: 10.1016/j.jbiotec.2015.02.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 01/26/2015] [Accepted: 02/02/2015] [Indexed: 02/07/2023]
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21
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Patel SC, Lalwani G, Grover K, Qin YX, Sitharaman B. Fabrication and cytocompatibility of in situ crosslinked carbon nanomaterial films. Sci Rep 2015; 5:10261. [PMID: 26018775 PMCID: PMC4446896 DOI: 10.1038/srep10261] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 04/07/2015] [Indexed: 12/15/2022] Open
Abstract
Assembly of carbon nanomaterials into two-dimensional (2D) coatings and films that harness their unique physiochemical properties may lead to high impact energy capture/storage, sensors, and biomedical applications. For potential biomedical applications, the suitability of current techniques such as chemical vapor deposition, spray and dip coating, and vacuum filtration, employed to fabricate macroscopic 2D all carbon coatings or films still requires thorough examination. Each of these methods presents challenges with regards to scalability, suitability for a large variety of substrates, mechanical stability of coatings or films, or biocompatibility. Herein we report a coating process that allow for rapid, in situ chemical crosslinking of multi-walled carbon nanotubes (MWCNTs) into macroscopic all carbon coatings. The resultant coatings were found to be continuous, electrically conductive, significantly more robust, and cytocompatible to human adipose derived stem cells. The results lay groundwork for 3D layer-on-layer nanomaterial assemblies (including various forms of graphene) and also opens avenues to further explore the potential of MWCNT films as a novel class of nano-fibrous mats for tissue engineering and regenerative medicine.
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Affiliation(s)
- Sunny C. Patel
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281, USA
| | - Gaurav Lalwani
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281, USA
| | - Kartikey Grover
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281, USA
| | - Yi-Xian Qin
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281, USA
| | - Balaji Sitharaman
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281, USA
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22
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Rashkow JT, Patel SC, Tappero R, Sitharaman B. Quantification of single-cell nanoparticle concentrations and the distribution of these concentrations in cell population. J R Soc Interface 2014; 11:20131152. [PMID: 24554576 PMCID: PMC3973359 DOI: 10.1098/rsif.2013.1152] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 01/27/2014] [Indexed: 11/12/2022] Open
Abstract
Quantification of nanoparticle uptake into cells is necessary for numerous applications in cellular imaging and therapy. Herein, synchrotron X-ray fluorescence (SXRF) microscopy, a promising tool to quantify elements in plant and animal cells, was employed to quantify and characterize the distribution of titanium dioxide (TiO2) nanosphere uptake in a population of single cells. These results were compared with average nanoparticle concentrations per cell obtained by widely used inductively coupled plasma mass spectrometry (ICP-MS). The results show that nanoparticle concentrations per cell quantified by SXRF were of one to two orders of magnitude greater compared with ICP-MS. The SXRF results also indicate a Gaussian distribution of the nanoparticle concentration per cell. The results suggest that issues relevant to the field of single-cell analysis, the limitation of methods to determine physical parameters from large population averages leading to potentially misleading information and the lack of any information about the cellular heterogeneity are equally relevant for quantification of nanoparticles in cell populations.
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Affiliation(s)
- Jason T. Rashkow
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281, USA
| | - Sunny C. Patel
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281, USA
| | - Ryan Tappero
- Department of Photon Sciences, National Synchrotron Light Source, Brookhaven National Lab, Upton, NY 11973-5000, USA
| | - Balaji Sitharaman
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-5281, USA
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23
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Ciofani G, Del Turco S, Rocca A, de Vito G, Cappello V, Yamaguchi M, Li X, Mazzolai B, Basta G, Gemmi M, Piazza V, Golberg D, Mattoli V. Cytocompatibility evaluation of gum Arabic-coated ultra-pure boron nitride nanotubes on human cells. Nanomedicine (Lond) 2014; 9:773-88. [DOI: 10.2217/nnm.14.25] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: Boron nitride nanotubes (BNNTs) are tubular nanoparticles with a structure analogous to that of carbon nanotubes, but with B and N atoms that completely replace the C atoms. Many favorable results indicate BNNTs as safe nanomaterials; however, important concerns have recently been raised about ultra-pure, long (˜10 µm) BNNTs tested on several cell types. Materials & methods: Here, we propose additional experiments with the same BNNTs, but shortened (˜1.5 µm) with a homogenization/sonication treatment that allows for their dispersion in gum Arabic aqueous solutions. Obtained BNNTs are tested on human endothelial and neuron-like cells with several independent biocompatibility assays. Moreover, for the first time, their strong sum-frequency generation signal is exploited to assess the cellular uptake. Results & conclusion: Our data demonstrate no toxic effects up to concentrations of 20 µg/ml, once more confirming biosafety of BNNTs, and again highlighting that nanoparticle aspect ratio plays a key role in the biocompatibility evaluation. Original submitted 3 December 2013; Revised submitted 28 January 2014; Published online 6 February 2014
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Affiliation(s)
- Gianni Ciofani
- Istituto Italiano di Tecnologia, Center for Micro-BioRobotics@SSSA, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
| | - Serena Del Turco
- CNR, Institute of Clinical Physiology, Via Moruzzi 1, 56124 Pisa, Italy
| | - Antonella Rocca
- Istituto Italiano di Tecnologia, Center for Micro-BioRobotics@SSSA, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
- Scuola Superiore Sant’Anna, The BioRobotics Institute, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
| | - Giuseppe de Vito
- Scuola Normale Superiore, NEST, Piazza San Silvestro 12, 56127 Pisa, Italy
- Istituto Italiano di Tecnologia, Center for Nanotechnology Innovation @NEST, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Valentina Cappello
- Scuola Normale Superiore, NEST, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Maho Yamaguchi
- National Institute for Materials Science (NIMS), International Center for Materials Nanoarchitectonics (MANA), Namiki 1-1, 305-0044 Tsukuba, Ibaraki, Japan
| | - Xia Li
- National Institute for Materials Science (NIMS), International Center for Materials Nanoarchitectonics (MANA), Namiki 1-1, 305-0044 Tsukuba, Ibaraki, Japan
| | - Barbara Mazzolai
- Istituto Italiano di Tecnologia, Center for Micro-BioRobotics@SSSA, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
| | - Giuseppina Basta
- CNR, Institute of Clinical Physiology, Via Moruzzi 1, 56124 Pisa, Italy
| | - Mauro Gemmi
- Scuola Normale Superiore, NEST, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Vincenzo Piazza
- Scuola Normale Superiore, NEST, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Dmitri Golberg
- National Institute for Materials Science (NIMS), International Center for Materials Nanoarchitectonics (MANA), Namiki 1-1, 305-0044 Tsukuba, Ibaraki, Japan
| | - Virgilio Mattoli
- Istituto Italiano di Tecnologia, Center for Micro-BioRobotics@SSSA, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
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24
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Frame MD, Dewar AM, Mullick Chowdhury S, Sitharaman B. Vasoactive effects of stable aqueous suspensions of single walled carbon nanotubes in hamsters and mice. Nanotoxicology 2013; 8:867-75. [PMID: 23992463 DOI: 10.3109/17435390.2013.837209] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Single-walled carbon nanotubes synthesized with iron (Fe-SWCNT) or gadolinium (Gd-SWCNT) show promise as high performance multimodal contrast and drug-delivery agents. Our purpose was to evaluate potential vasoactive effects of SWCNT. Stable aqueous solutions of Fe-SWCNTs or Gd-SWCNTs were made using the biocompatible amphiphilic polymer N-(carbonyl-methoxypolyethyleneglycol 2000)-1,2-distearoylsn-glycero-3- phosphoethanolamine (PEG-DSPE). Both aggregated and non-aggregated (sonicated) formulations were tested. The initial vasoactivity of the formulations and their potential for inducing pro-inflammatory endothelial dysfunction were investigated in the hamster cheek pouch and murine cremaster muscle intravital microscopy models. These models provide an assay to test several formulations/dosages in a paired fashion. Abluminal exposure to small arterioles exposes both endothelial and vascular smooth muscle cells. Using abluminal exposures of dosages that would approximate the first pass of an i.v. bolus injection, both Fe-SWCNTs and Gd-SWCNTs were immediately vasoactive. Aggregated formulations induced dilation and non-aggregated formulations induced constriction in both hamsters and mice. Endothelial dysfunction was evident after exposure to either aggregated or non-aggregated forms. General loss of dilator capability was seen after exposure to non-aggregated but not aggregated forms. Thus concentrations mimicking bolus dosing of PEG-DSPE coated SWCNT induce both acute and chronic vascular responses.
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Affiliation(s)
- Mary D Frame
- Department of Biomedical Engineering, Stony Brook University , Stony Brook, NY 11794 , USA
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25
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Avti PK, Talukdar Y, Sirotkin MV, Shroyer KR, Sitharaman B. Toward single-walled carbon nanotube-gadolinium complex as advanced MRI contrast agents: pharmacodynamics and global genomic response in small animals. J Biomed Mater Res B Appl Biomater 2013; 101:1039-49. [PMID: 23559429 DOI: 10.1002/jbm.b.32914] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 11/30/2012] [Accepted: 01/07/2013] [Indexed: 12/19/2022]
Abstract
Gadolinium nanoparticle-catalyzed single-walled carbon nanotubes (Gd-SWCNTs) have recently shown potential in vitro as high-performance T1 magnetic resonance imaging (MRI) contrast agents (CAs). Their preclinical safety assessment at nontoxic dosages is essential for MRI applications. Herein, the in vivo (in rats) pharmacodynamics of Gd-SWCNTs (water solubilized with the amphiphilic polymer PEG-DSPE) at the organ, tissue, molecular, and genetic level is reported. Gd-SWCNT, commercially available iron catalyzed SWCNTs (Fe-SWCNTs, control 1) and PEG-DSPE (control 2) solutions were intravenously injected at a potential nontoxic therapeutic dose (0.5 mg/kg body weight, single bolus). Postinjection, bright-field optical microscopy showed their macroscale distribution in lung, liver, kidney, brain, and spleen up to 5 days. Raman and transmission electron microscopy (TEM) showed their presence at the nanoscale within hepatocytes. Their effects on the host organ tissue, molecular, and genetic level were analyzed after 1, 5, 10, 20, and 30 days by histology, biomolecular [lipid peroxidation, plasma tumor necrosis factor TNF-α assay, microarrays] assays. The results indicate that Gd-SWCNTs neither cause any inflammation, nor damage to the above organs, nor any significant change in the lipid peroxidation or plasma proinflammatory cytokine (TNF-α) levels for all the groups at all time points. Global gene expression profile of liver (main organ for the metabolism) after day 1 treatment with Gd-SWCNTs shows that the gene regulation is directed toward maintaining normal homeostasis. The results taken together indicate that PEG-DSPE water-solubilized Gd-SWCNTs at potentially nontoxic dosages have pharmacodynamics similar to other commercially available Fe-SWCNTs and are suitable for future preclinical development as in vivo MRI CAs.
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Affiliation(s)
- Pramod K Avti
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794-5281, USA
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Chen Y, Yang H, Tang W, Cui X, Wang W, Chen X, Yuan Y, Hu A. Attaching double chain cationic Gd(iii)-containing surfactants on nanosized colloids for highly efficient MRI contrast agents. J Mater Chem B 2013; 1:5443-5449. [DOI: 10.1039/c3tb20807a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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