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Chen L, Schmid J, Platek-Mielczarek A, Armstrong T, Schutzius TM. Three-Dimensional Metallic Surface Micropatterning through Tailored Photolithography-Transfer-Plating. ACS APPLIED MATERIALS & INTERFACES 2024; 16:46937-46944. [PMID: 39163249 PMCID: PMC11378153 DOI: 10.1021/acsami.4c10550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2024]
Abstract
Precise micropatterning on three-dimensional (3D) surfaces is desired for a variety of applications, from microelectronics to metamaterials, which can be realized by transfer printing techniques. However, a nontrivial deficiency of this approach is that the transferred microstructures are adsorbed on the target surface with weak adhesion, limiting the applications to external force-free conditions. We propose a scalable "photolithography-transfer-plating" method to pattern stable and durable microstructures on 3D metallic surfaces with precise dimension and location control of the micropatterns. Surface patterning on metallic parts with different metals and isotropic and anisotropic curvatures is showcased. This method can also fabricate hierarchical structures with nanoscale vertical and microscale horizontal dimensions. The plated patterns are stable enough to mold soft materials, and the structure durability is validated by 24 h thermofluidic tests. We demonstrate micropatterned nickel electrodes for oxygen evolution reaction acceleration in hydrogen production, showing the potential of micropatterned 3D metallic surfaces for energy applications.
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Affiliation(s)
- Liyang Chen
- Laboratory for Multiphase Thermofluidics and Surface Nanoengineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Julian Schmid
- Laboratory for Multiphase Thermofluidics and Surface Nanoengineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Anetta Platek-Mielczarek
- Laboratory for Multiphase Thermofluidics and Surface Nanoengineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Tobias Armstrong
- Laboratory for Multiphase Thermofluidics and Surface Nanoengineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Thomas M Schutzius
- Laboratory for Multiphase Thermofluidics and Surface Nanoengineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
- Department of Mechanical Engineering, University of California, Berkeley, Berkeley, California 94720, United States
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Hwang J, Kim B, Jin C, Lee G, Jeong H, Lee H, Noh J, Lim SJ, Kim JY, Choi H. Shortwave Infrared Imaging of a Quantum Dot-Based Magnetic Guidewire Toward Non-Fluoroscopic Peripheral Vascular Interventions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404251. [PMID: 39175372 DOI: 10.1002/smll.202404251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 08/14/2024] [Indexed: 08/24/2024]
Abstract
Peripheral vascular interventions (PVIs) offer several benefits to patients with lower extremity arterial diseases, including reduced pain, simpler anesthesia, and shorter recovery time, compared to open surgery. However, to monitor the endovascular tools inside the body, PVIs are conducted under X-ray fluoroscopy, which poses serious long-term health risks to physicians and patients. Shortwave infrared (SWIR) imaging of quantum dots (QDs) has shown great potential in bioimaging due to the non-ionizing penetration of SWIR light through tissues. In this paper, a QD-based magnetic guidewire and its system is introduced that allows X-ray-free detection under SWIR imaging and precise steering via magnetic manipulation. The QD magnetic guidewire contains a flexible silicone tube encapsulating a QD polydimethylsiloxane (PDMS) composite, where HgCdSe/HgS/CdS/CdZnS/ZnS/SiO2 core/multi-shell QDs are dispersed in the PDMS matrix for SWIR imaging upon near-infrared excitation, as well as a permanent magnet for magnetic steering. The SWIR penetration of the QD magnetic guidewire is investigated within an artificial tissue model (1% Intralipid) and explore the potential for non-fluoroscopic PVIs within a vascular phantom model. The QD magnetic guidewire is biocompatible in its entirety, with excellent resistance to photobleaching and chemical alteration, which is a promising sign for its future clinical implementation.
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Affiliation(s)
- Junsun Hwang
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
- Robotics and Mechatronics Engineering Research Center, DGIST, Daegu, 42988, Republic of Korea
- Institute of Mechanical Engineering, École polytechnique fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Beomjoo Kim
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
| | - Chaewon Jin
- Division of Biotechnology, DGIST, Daegu, 42988, Republic of Korea
| | - Gyudong Lee
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
- Division of Nanotechnology, DGIST, Daegu, 42988, Republic of Korea
| | - Hwajun Jeong
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
- Division of Nanotechnology, DGIST, Daegu, 42988, Republic of Korea
| | - Hyunki Lee
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
- Division of Intelligent Robotics, DGIST, Daegu, 42988, Republic of Korea
| | - Jonggu Noh
- Division of Intelligent Robotics, DGIST, Daegu, 42988, Republic of Korea
| | - Sung Jun Lim
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
- Division of Nanotechnology, DGIST, Daegu, 42988, Republic of Korea
| | - Jin-Young Kim
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
- Division of Biotechnology, DGIST, Daegu, 42988, Republic of Korea
- Department of Interdisciplinary Engineering, DGIST, Daegu, 42988, Republic of Korea
| | - Hongsoo Choi
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
- Robotics and Mechatronics Engineering Research Center, DGIST, Daegu, 42988, Republic of Korea
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3
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Bianchini M, Zinno C, Micera S, Redolfi Riva E. Improved Physiochemical Properties of Chitosan@PCL Nerve Conduits by Natural Molecule Crosslinking. Biomolecules 2023; 13:1712. [PMID: 38136583 PMCID: PMC10741752 DOI: 10.3390/biom13121712] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/20/2023] [Accepted: 11/25/2023] [Indexed: 12/24/2023] Open
Abstract
Nerve conduits may represent a valuable alternative to autograft for the regeneration of long-gap damages. However, no NCs have currently reached market approval for the regeneration of limiting gap lesions, which still represents the very bottleneck of this technology. In recent years, a strong effort has been made to envision an engineered graft to tackle this issue. In our recent work, we presented a novel design of porous/3D-printed chitosan/poly-ε-caprolactone conduits, coupling freeze drying and additive manufacturing technologies to yield conduits with good structural properties. In this work, we studied genipin crosslinking as strategy to improve the physiochemical properties of our conduit. Genipin is a natural molecule with very low toxicity that has been used to crosslink chitosan porous matrix by binding the primary amino group of chitosan chains. Our characterization evidenced a stabilizing effect of genipin crosslinking towards the chitosan matrix, with reported modified porosity and ameliorated mechanical properties. Given the reported results, this method has the potential to improve the performance of our conduits for the regeneration of long-gap nerve injuries.
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Affiliation(s)
- Marta Bianchini
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (M.B.); (C.Z.); (S.M.)
| | - Ciro Zinno
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (M.B.); (C.Z.); (S.M.)
| | - Silvestro Micera
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (M.B.); (C.Z.); (S.M.)
- Translational Neuroengineering, Centre for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1007 Lausanne, Switzerland
| | - Eugenio Redolfi Riva
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (M.B.); (C.Z.); (S.M.)
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Redolfi Riva E, D’Alessio A, Micera S. Polysaccharide Layer-by-Layer Coating for Polyimide-Based Neural Interfaces. MICROMACHINES 2022; 13:692. [PMID: 35630159 PMCID: PMC9146946 DOI: 10.3390/mi13050692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/19/2022] [Accepted: 04/27/2022] [Indexed: 02/01/2023]
Abstract
Implantable flexible neural interfaces (IfNIs) are capable of directly modulating signals of the central and peripheral nervous system by stimulating or recording the action potential. Despite outstanding results in acute experiments on animals and humans, their long-term biocompatibility is hampered by the effects of foreign body reactions that worsen electrical performance and cause tissue damage. We report on the fabrication of a polysaccharide nanostructured thin film as a coating of polyimide (PI)-based IfNIs. The layer-by-layer technique was used to coat the PI surface due to its versatility and ease of manufacturing. Two different LbL deposition techniques were tested and compared: dip coating and spin coating. Morphological and physiochemical characterization showed the presence of a very smooth and nanostructured thin film coating on the PI surface that remarkably enhanced surface hydrophilicity with respect to the bare PI surface for both the deposition techniques. However, spin coating offered more control over the fabrication properties, with the possibility to tune the coating's physiochemical and morphological properties. Overall, the proposed coating strategies allowed the deposition of a biocompatible nanostructured film onto the PI surface and could represent a valid tool to enhance long-term IfNI biocompatibility by improving tissue/electrode integration.
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Affiliation(s)
- Eugenio Redolfi Riva
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (A.D.); (S.M.)
| | - Angela D’Alessio
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (A.D.); (S.M.)
| | - Silvestro Micera
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (A.D.); (S.M.)
- Translational Neuroengineering, Centre for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1000 Lausanne, Switzerland
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5
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Li M, Bian X, Chen X, Fan N, Zou H, Bao Y, Zhou Y. Multifunctional liposome for photoacoustic/ultrasound imaging-guided chemo/photothermal retinoblastoma therapy. Drug Deliv 2022; 29:519-533. [PMID: 35156504 PMCID: PMC8863383 DOI: 10.1080/10717544.2022.2032876] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Retinoblastoma (RB) is a malignant intraocular neoplasm that occurs in children. Diagnosis and therapy are frequently delayed, often leading to metastasis, which necessitates effective imaging and treatment. In recent years, the use of nanoplatforms allowing both imaging and targeted treatment has attracted much attention. Herein, we report a novel nanoplatform folate-receptor (FR) targeted laser-activatable liposome termed FA-DOX-ICG-PFP@Lip, which is loaded with doxorubicin (DOX)/indocyanine green (ICG) and liquid perfluoropentane (PFP) for photoacoustic/ultrasound (PA/US) dual-modal imaging-guided chemo/photothermal RB therapy. The dual-modal imaging capability, photothermal conversion under laser irradiation, biocompatibility, and antitumor ability of these liposomes were appraised. The multifunctional liposome showed a good tumor targeting ability and was efficacious as a dual-modality contrast agent both in vivo and in vitro. When laser-irradiated, the liposome converted light energy to heat. This action caused immediate destruction of tumor cells, while simultaneously initiating PFP phase transformation to release DOX, resulting in both photothermal and chemotherapeutic antitumor effects. Notably, the FA-DOX-ICG-PFP@Lip showed good biocompatibility and no systemic toxicity was observed after laser irradiation in RB tumor-bearing mice. Hence, the FA-DOX-ICG-PFP@Lip shows great promise for dual-modal imaging-guided chemo/photothermal therapy, and may have significant value for diagnosing and treating RB.
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Affiliation(s)
- Meng Li
- Department of Clinical Laboratory, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.,Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, PR China
| | - Xintong Bian
- Department of Clinical Laboratory, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.,Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, PR China
| | - Xu Chen
- Department of Clinical Laboratory, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.,Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, PR China
| | - Ningke Fan
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, PR China
| | - Hongmi Zou
- Department of Ophthalmology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, PR China
| | - Yixi Bao
- Department of Clinical Laboratory, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, PR China
| | - Yu Zhou
- Department of Ophthalmology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, PR China
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Zhang Z, Zeng J, Groll J, Matsusaki M. Layer-by-layer assembly methods and their biomedical applications. Biomater Sci 2022; 10:4077-4094. [DOI: 10.1039/d2bm00497f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Various biomedical applications arising due to the development of different LbL assembly methods with unique process properties.
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Affiliation(s)
- Zhuying Zhang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Jinfeng Zeng
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Research Fellow of Japan Society for the Promotion of Science, Kojimachi Business Center Building, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB) and Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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7
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Polyelectrolyte Multilayer Films Based on Natural Polymers: From Fundamentals to Bio-Applications. Polymers (Basel) 2021; 13:polym13142254. [PMID: 34301010 PMCID: PMC8309355 DOI: 10.3390/polym13142254] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/06/2021] [Accepted: 07/06/2021] [Indexed: 02/06/2023] Open
Abstract
Natural polymers are of great interest in the biomedical field due to their intrinsic properties such as biodegradability, biocompatibility, and non-toxicity. Layer-by-layer (LbL) assembly of natural polymers is a versatile, simple, efficient, reproducible, and flexible bottom-up technique for the development of nanostructured materials in a controlled manner. The multiple morphological and structural advantages of LbL compared to traditional coating methods (i.e., precise control over the thickness and compositions at the nanoscale, simplicity, versatility, suitability, and flexibility to coat surfaces with irregular shapes and sizes), make LbL one of the most useful techniques for building up advanced multilayer polymer structures for application in several fields, e.g., biomedicine, energy, and optics. This review article collects the main advances concerning multilayer assembly of natural polymers employing the most used LbL techniques (i.e., dipping, spray, and spin coating) leading to multilayer polymer structures and the influence of several variables (i.e., pH, molar mass, and method of preparation) in this LbL assembly process. Finally, the employment of these multilayer biopolymer films as platforms for tissue engineering, drug delivery, and thermal therapies will be discussed.
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Redolfi Riva E, Micera S. Progress and challenges of implantable neural interfaces based on nature-derived materials. Bioelectron Med 2021; 7:6. [PMID: 33902750 PMCID: PMC8077843 DOI: 10.1186/s42234-021-00067-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/31/2021] [Indexed: 12/31/2022] Open
Abstract
Neural interfaces are bioelectronic devices capable of stimulating a population of neurons or nerve fascicles and recording electrical signals in a specific area. Despite their success in restoring sensory-motor functions in people with disabilities, their long-term exploitation is still limited by poor biocompatibility, mechanical mismatch between the device and neural tissue and the risk of a chronic inflammatory response upon implantation.In this context, the use of nature-derived materials can help address these issues. Examples of these materials, such as extracellular matrix proteins, peptides, lipids and polysaccharides, have been employed for decades in biomedical science. Their excellent biocompatibility, biodegradability in the absence of toxic compound release, physiochemical properties that are similar to those of human tissues and reduced immunogenicity make them outstanding candidates to improve neural interface biocompatibility and long-term implantation safety. The objective of this review is to highlight progress and challenges concerning the impact of nature-derived materials on neural interface design. The use of these materials as biocompatible coatings and as building blocks of insulation materials for use in implantable neural interfaces is discussed. Moreover, future perspectives are presented to show the increasingly important uses of these materials for neural interface fabrication and their possible use for other applications in the framework of neural engineering.
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Affiliation(s)
- Eugenio Redolfi Riva
- The BioRobotics Institute and Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, Pisa, Italy.
| | - Silvestro Micera
- The BioRobotics Institute and Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, Pisa, Italy
- Bertarelli Foundation Chair in Translational Neuroengineering, Centre for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
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Xie L, Jin W, Zuo X, Ji S, Nan W, Chen H, Gao S, Zhang Q. Construction of small-sized superparamagnetic Janus nanoparticles and their application in cancer combined chemotherapy and magnetic hyperthermia. Biomater Sci 2020; 8:1431-1441. [PMID: 31960005 DOI: 10.1039/c9bm01880h] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Novel Janus nanoparticles (J-NPs) are developed by using single iron oxide (Fe3O4) nanoparticles as the core and hydrophobic/hydrophilic polymeric brushes as the cloak. Because of the superparamagnetism and asymmetric functionality of J-NPs, they are used as drug carriers and therapeutic agents for cancer chemotherapy and magnetic hyperthermia with a magnetic resonance imaging (MRI) guide. The asymmetric functionality is constituted of hydrophobic polymethyl methacrylate (PMMA) brushes and hydrophilic polyacrylic acid (PAA) brushes, which are 'grafting to' or 'grafting from' Fe3O4 nanoparticles via activators regenerated by electron transfer atom transfer radical polymerization. The terminal chains of PMMA and PAA brushes are coordinated with Fe3O4 nanoparticles, so PMMA/Fe3O4/PAA J-NPs possess structural stability in solvents. Because of the brush-structure, PMMA/Fe3O4/PAA J-NPs show high encapsulation efficiency (89.75 ± 2.35%) and loading capacity (8.95 ± 0.26%). Under the alternating magnetic field (AMF), drug-loaded J-NPs achieve the highest cell proliferation-inhibition ratio in the cell proliferation test in vitro and the tumor growth inhibition test in vivo compared to single chemotherapy or magnetic hyperthermia. Meanwhile, J-NPs show good T2 imaging.
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Affiliation(s)
- Liqin Xie
- The Key Laboratory of Biomedical Materials, School of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, People's Republic of China.
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Jin Z, Nguyen KT, Go G, Kang B, Min HK, Kim SJ, Kim Y, Li H, Kim CS, Lee S, Park S, Kim KP, Huh KM, Song J, Park JO, Choi E. Multifunctional Nanorobot System for Active Therapeutic Delivery and Synergistic Chemo-photothermal Therapy. NANO LETTERS 2019; 19:8550-8564. [PMID: 31694378 DOI: 10.1021/acs.nanolett.9b03051] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Nanorobots are safe and exhibit powerful functionalities, including delivery, therapy, and diagnosis. Therefore, they are in high demand for the development of new cancer therapies. Although many studies have contributed to the progressive development of the nanorobot system for anticancer drug delivery, these systems still face some critical limitations, such as potentially toxic materials in the nanorobots, unreasonable sizes for passive targeting, and the lack of several essential functions of the nanorobot for anticancer drug delivery including sensing, active targeting, controlling drug release, and sufficient drug loading capacity. Here, we developed a multifunctional nanorobot system capable of precise magnetic control, sufficient drug loading for chemotherapy, light-triggered controlled drug release, light absorption for photothermal therapy, enhanced magnetic resonance imaging, and tumor sensing. The developed nanorobot system exhibits an in vitro synergetic antitumor effect of photothermal therapy and chemotherapy and outstanding tumor-targeting efficiency in both in vitro and in vivo environments. The results of this study encourage further explorations of an efficient active drug delivery system for cancer treatment and the development of nanorobot systems for other biomedical applications.
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Affiliation(s)
- Zhen Jin
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro, Buk-gu , Gwangju 61186 , Republic of Korea
| | - Kim Tien Nguyen
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro, Buk-gu , Gwangju 61186 , Republic of Korea
| | - Gwangjun Go
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro, Buk-gu , Gwangju 61186 , Republic of Korea
| | - Byungjeon Kang
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
| | - Hyun-Ki Min
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
| | - Seok-Jae Kim
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
| | - Yun Kim
- Department of Mechanical Engineering , Hanbat National University , Deongmyeong-dong, Yuseong-gu, Daejeon 34158 , Republic of Korea
| | - Hao Li
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
| | - Chang-Sei Kim
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro, Buk-gu , Gwangju 61186 , Republic of Korea
| | - Seonmin Lee
- Department of Oncology , Asan Medical Center, University of Ulsan College of Medicine , 88, Olympic-ro 43-gil , Songpa-Gu, Seoul 05505 , Republic of Korea
| | - Sukho Park
- Department of Robotics Engineering , Daegu Gyeongbuk Institute of Science and Technology (DGIST) , Daegu 42988 , Republic of Korea
| | - Kyu-Pyo Kim
- Department of Oncology , Asan Medical Center, University of Ulsan College of Medicine , 88, Olympic-ro 43-gil , Songpa-Gu, Seoul 05505 , Republic of Korea
| | - Kang Moo Huh
- Department of Polymer Science and Engineering , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Republic of Korea
| | - Jihwan Song
- Department of Mechanical Engineering , Hanbat National University , Deongmyeong-dong, Yuseong-gu, Daejeon 34158 , Republic of Korea
| | - Jong-Oh Park
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro, Buk-gu , Gwangju 61186 , Republic of Korea
| | - Eunpyo Choi
- Korea Institute of Medical Microrobotics , 43-26 Cheomdangwagi-ro , Buk-gu, Gwangju 61011 , Republic of Korea
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro, Buk-gu , Gwangju 61186 , Republic of Korea
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Borzenkov M, Pallavicini P, Chirico G. Photothermally Active Inorganic Nanoparticles: from Colloidal Solutions to Photothermally Active Printed Surfaces and Polymeric Nanocomposite Materials. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900836] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mykola Borzenkov
- Department of Medicine and Surgery Department of Physics Nanomedicine Center University of Milano‐Bicocca piazza dell'Ateneo Nuovo 1 – 21026 Milan Italy
| | | | - Giuseppe Chirico
- Department of Medicine and Surgery Department of Physics Nanomedicine Center University of Milano‐Bicocca piazza dell'Ateneo Nuovo 1 – 21026 Milan Italy
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Wang W, Jing T, Xia X, Tang L, Huang Z, Liu F, Wang Z, Ran H, Li M, Xia J. Melanin-loaded biocompatible photosensitive nanoparticles for controlled drug release in combined photothermal-chemotherapy guided by photoacoustic/ultrasound dual-modality imaging. Biomater Sci 2019; 7:4060-4074. [PMID: 31475710 DOI: 10.1039/c9bm01052a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Combined photothermal-chemotherapy guided by multimodal imaging is a promising strategy for cancer diagnosis and treatment. Multifunctional nanoparticles, such as those comprising organic and inorganic compounds, have been extensively investigated for combined photothermal-chemotherapy; however, their application is still limited by their potential long-term toxicity and lack of contrast properties. To solve these problems, in this study, a new type of multifunctional nanoparticle for combined photothermal-chemotherapy guided by dual-modality imaging was prepared with endogenous melanin by multistep emulsification to enhance tumor ablation. The nanoparticles were coated with poly(lactide-co-glycolic acid) (PLGA) and loaded with paclitaxel (PTX), encapsulated melanin and perfluoropentane (PFP). The materials in the nanoparticles were endogenous, ensuring high stability, biocompatibility, and biosafety. Nanoparticles irradiated with a laser, which induced their phase transformation into microbubbles, exhibited high photothermal conversion efficiency, thereby achieving photoacoustic (PA)/ultrasound (US) dual-modality imaging to determine tumor location, boundary, and size and to monitor drug distribution. Furthermore, optical droplet vaporization (ODV) of the nanoparticles could trigger the release of PTX; thus, these nanoparticles are a useful drug carrier. In vivo and in vitro experiments revealed that a strong synergistic antitumor effect was achieved by combining the photothermal properties of the nanoparticles with a chemotherapy drug. Importantly, the cavitation, thermoelastic expansion, and sonoporation caused by the phase transformation of the nanoparticles could directly damage the tumors. These processes also promoted the release, penetration and absorption of the drug, further enhancing the effect of combined photothermal-chemotherapy on tumor suppression. Therefore, the multifunctional nanoparticles prepared in this study provide a new strategy of using endogenous materials for controlled near-infrared (NIR)-responsive drug release and combined photothermal-chemotherapy guided by multimodal imaging.
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Affiliation(s)
- Wenyuan Wang
- Department of Ultrasound, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, PR China.
| | - Ting Jing
- Department of Radiology, Hospital (t.c.m) Affiliated to Southwest Medical University, Luzhou 646000, PR China
| | - Xiaorong Xia
- Department of Ultrasound, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, PR China.
| | - Linmei Tang
- Department of Ultrasound, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, PR China.
| | - Zhiqiang Huang
- Department of Ultrasound, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, PR China.
| | - Fengqiu Liu
- Institute of Ultrasound Imaging & Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University; Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing 400010, PR China
| | - Zhigang Wang
- Institute of Ultrasound Imaging & Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University; Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing 400010, PR China
| | - Haitao Ran
- Institute of Ultrasound Imaging & Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University; Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing 400010, PR China
| | - Mingxing Li
- Department of Ultrasound, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, PR China.
| | - Jizhu Xia
- Department of Ultrasound, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, PR China.
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Liu F, Chen Y, Li Y, Guo Y, Cao Y, Li P, Wang Z, Gong Y, Ran H. Folate-receptor-targeted laser-activable poly(lactide- co-glycolic acid) nanoparticles loaded with paclitaxel/indocyanine green for photoacoustic/ultrasound imaging and chemo/photothermal therapy. Int J Nanomedicine 2018; 13:5139-5158. [PMID: 30233177 PMCID: PMC6135220 DOI: 10.2147/ijn.s167043] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Cancer is one of the most serious threats to human health. Precision medicine is an innovative approach to treatment, as part of which theranostic nanomedicine has been studied extensively. However, the required biocompatibility and substantial cost for the approval of nanomedicines hinder their clinical translation. PURPOSE We designed a novel type of theranostic nanoparticle (NP) folate-receptor-targeted laser-activatable poly(lactide-co-glycolic acid) (PLGA) NPs loaded with paclitaxel (Ptx)/indo-cyanine green (ICG)-folic acid-polyethylene glycol (PEG)-PLGA-Ptx@ICG-perfluorohexane (Pfh)- using safe and approved materials and drugs, which would facilitate clinical translation. With laser irradiation, highly efficient photothermal therapy can be achieved. Additionally, targeted NPs can be activated by near-infrared laser irradiation at a specific region, which leads to the sharp release of Ptx at areas of high folate-receptor expression and ensures a higher Ptx concentration within the tumor region, thereby leading to chemo/photothermal synergistic antitumor efficacy. Meanwhile, the NPs can be used as a dual-modality contrast agent for photoacoustic and ultrasound imaging. MATERIALS AND METHODS FA-PEG-PLGA-Ptx@ICG-Pfh NPs were prepared by sonification method and characterized for physicochemical properties. Cytotoxicity and in vivo biocompatibility were evaluated respectively by CCK8 assay and blood analysis. NPs as dual-modality contrast agents were evaluated by photoacoustic/ultrasound imaging system in vitro and in vivo. In vitro anticancer effect and in vivo anticancer therapy was evaluated by CCK8 assay and MDA-MB231 tumor-bearing mice model. RESULTS FA-PEG-PLGA-Ptx@ICG-Pfh NPs were in the size of 308±5.82 nm with negative zeta potential and showed excellent photothermal effect. The NPs could be triggered sharp release of Ptx by laser irradiation, and showed the good biocompatibility in vitro and in vivo. Through photoacoustic/ultrasound imaging, the NPs showed an excellent ability as dual-modality contrast agents in vitro and in vivo. FA-PEG-PLGA-Ptx@ICG-Pfh NPs with laser irradiation showed the best anticancer efficacy in vitro and in vivo. CONCLUSION Such a biocompatible and novel theranostic NP is expected to integrate dual-modality imaging with improved therapeutic efficacy and provide a promising paradigm for cancer therapy.
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Affiliation(s)
- Fengqiu Liu
- Ultrasound Department, Second Affiliated Hospital, Chongqing Medical University, ;
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, China, ;
| | - Yuli Chen
- Ultrasound Department, Second Affiliated Hospital, Chongqing Medical University, ;
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, China, ;
| | - Yizhen Li
- Ultrasound Department, Second Affiliated Hospital, Chongqing Medical University, ;
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, China, ;
| | - Yuan Guo
- Ultrasound Department, Second Affiliated Hospital, Chongqing Medical University, ;
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, China, ;
| | - Yang Cao
- Ultrasound Department, Second Affiliated Hospital, Chongqing Medical University, ;
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, China, ;
| | - Pan Li
- Ultrasound Department, Second Affiliated Hospital, Chongqing Medical University, ;
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, China, ;
| | - Zhigang Wang
- Ultrasound Department, Second Affiliated Hospital, Chongqing Medical University, ;
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, China, ;
| | - Yuping Gong
- Ultrasound Department, Second Affiliated Hospital, Chongqing Medical University, ;
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, China, ;
| | - Haitao Ran
- Ultrasound Department, Second Affiliated Hospital, Chongqing Medical University, ;
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, China, ;
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14
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Criado M, Sanz B, Goya GF, Mijangos C, Hernández R. Magnetically responsive biopolymeric multilayer films for local hyperthermia. J Mater Chem B 2017; 5:8570-8578. [PMID: 32264525 DOI: 10.1039/c7tb02361h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We present a proof of concept on the use of thermomagnetic polymer films (TMFs) as heating devices for magnetic hyperthermia in vitro. The TMFs were prepared through spray assisted layer-by-layer assembly of polysaccharides and magnetic iron oxide nanoparticles, yielding an alternate magnetic-polymer multilayer structure. By applying a remote alternating magnetic field (AMF) (f = 180 kHz; H = 35 kA m-1) we increased the temperature of the TMFs in a thickness-dependent way, up to 12 °C within the first 5 minutes. To test our films as heating substrates for magnetic hyperthermia, a series of in vitro experiments were designed using human neuroblastoma SH-SY5Y cells, known by their tolerance to thermal stress. The application of two AMF cycles (30 minutes each) showed that the exogenous magnetic hyperthermia resulted in an 85% reduction of cell viability. This capacity of the TMFs of hyperthermia-mediated cell killing using a remote AMF opens new options for the treatment of small and superficial tumor lesions by means of remotely-triggered magnetic hyperthermia.
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Affiliation(s)
- M Criado
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/Juan de la Cierva, 3, 28006 Madrid, Spain.
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15
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Plasmonic/magnetic nanocomposites: Gold nanorods-functionalized silica coated magnetic nanoparticles. J Colloid Interface Sci 2017; 502:201-209. [DOI: 10.1016/j.jcis.2017.04.089] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 04/27/2017] [Indexed: 11/18/2022]
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16
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Taccola S, Pensabene V, Fujie T, Takeoka S, Pugno NM, Mattoli V. On the injectability of free-standing magnetic nanofilms. Biomed Microdevices 2017; 19:51. [DOI: 10.1007/s10544-017-0192-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Gai M, Frueh J, Kudryavtseva VL, Yashchenok AM, Sukhorukov GB. Polylactic Acid Sealed Polyelectrolyte Multilayer Microchambers for Entrapment of Salts and Small Hydrophilic Molecules Precipitates. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16536-16545. [PMID: 28452456 DOI: 10.1021/acsami.7b03451] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Efficient depot systems for entrapment and storage of small water-soluble molecules are of high demand for wide variety of applications ranging from implant based drug delivery in medicine and catalysis in chemical processes to anticorrosive systems in industry where surface-mediated active component delivery is required on a time and site specific manner. This work reports the fabrication of individually sealed hollow-structured polyelectrolyte multilayer (PEM) microchamber arrays based on layer-by-layer self-assembly as scaffolds and microcontact printing. These PEM chambers are composed out of biocompatible polyelectrolytes and sealed by a monolayer of hydrophobic biocompatible and biodegradable polylactic acid (PLA). Coating the chambers with hydrophobic PLA allows for entrapment of a microair-bubble in each chamber that seals and hence drastically reduces the PEM permeability. PLA@PEM microchambers are proven to enable prolonged subaqueous storage of small hydrophilic salts and molecules such as crystalline NaCl, doxicycline, and fluorescent dye rhodamine B. The presented microchambers are able to entrap air bubbles and demonstrate a novel strategy for entrapment, storage, and protection of micropackaged water-soluble substances in precipitated form. These chambers allow triggered release as demonstrated by ultrasound responsiveness of the chambers. Low-frequency ultrasound exposure is utilized for microchamber opening and payload release.
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Affiliation(s)
- Meiyu Gai
- School of Engineering and Materials Science, Queen Mary University of London , Mile End, Eng, 215, London E1 4NS, United Kingdom
| | - Johannes Frueh
- State Key laboratory of Micro/Nano Technology Research Centre, Harbin Institute of Technology , Yikuang Street 2, Harbin 150080, China
| | - Valeriya L Kudryavtseva
- RASA Center in Tomsk, Department of Experimental Physics, National Research Tomsk Polytechnic University , Tomsk 634050, Russia
| | - Alexey M Yashchenok
- Remote Controlled Theranostic Systems Lab, Educational Research Institute of Nanostructures and Biosystem, Saratov State University , 83 Astrakhanskaya Street, Saratov 410012, Russia
| | - Gleb B Sukhorukov
- School of Engineering and Materials Science, Queen Mary University of London , Mile End, Eng, 215, London E1 4NS, United Kingdom
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18
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He W, Frueh J, Shao J, Gai M, Hu N, He Q. Guidable GNR-Fe 3 O 4 -PEM@SiO 2 composite particles containing near infrared active nanocalorifiers for laser assisted tissue welding. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.09.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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19
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Huang CJ, Chu SH, Li CH, Lee TR. Surface modification with zwitterionic cysteine betaine for nanoshell-assisted near-infrared plasmonic hyperthermia. Colloids Surf B Biointerfaces 2016; 145:291-300. [PMID: 27208443 DOI: 10.1016/j.colsurfb.2016.05.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/17/2016] [Accepted: 05/04/2016] [Indexed: 10/21/2022]
Abstract
Nanoparticles decorated with biocompatible coatings have received considerable attention in recent years for their potential biomedical applications. However, the desirable properties of nanoparticles for in vivo uses, such as colloidal stability, biodistribution, and pharmacokinetics, require further research. In this work, we report a bio-derived zwitterionic surface ligand, cysteine betaine (Cys-b) for the modification of hollow gold-silver nanoshells, giving rise to hyperthermia applications. Cys-b coatings on planar substrates and nanoshells were compared to conventional (11-mercaptoundecyl)tri(ethylene glycol) (OEG-thiol) to investigate their effects on the fouling resistance, colloidal stability, environmental tolerance, and photothermal properties. The results found that Cys-b and OEG-thiol coatings exhibited comparable antifouling properties against bacteria of gram-negative Pseudomonas aeruginosa (P. aeruginosa) and gram-positive Staphylococcus epidermidis (S. epidermidis), NIH-3T3 fibroblasts, and bovine serum albumin. However, when the modified nanoshells were suspended at a temperature of 50°C in aqueous 3M NaCl solutions, shifts in the extinction maximum of the OEG-capped nanoshells with time were observed, while the corresponding spectra of nanoshells capped with Cys-b generally remained unchanged. In addition, when the nanoshells were continuously exposed to NIR irradiation, the temperature of the solution containing nanoshells capped with Cys-b increased to a plateau of 54°C, while that of the OEG-capped nanoshells gradually decreased after reaching a peak temperature. Accordingly, the Cys-b nanoshells were conjugated with anti-HER2 antibodies for targeted delivery to HER2-positive MDA-MB-453 breast cancer cells for hyperthermia treatment. The results showed the selective delivery and effective photothermal cell ablation with the antibody-conjugated Cys-b nanoshells. Therefore, this work demonstrated the promise of bio-derived zwitterionic Cys-b as a stable and biocompatible surface coating for materials in nanomedicine.
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Affiliation(s)
- Chun-Jen Huang
- Department of Biomedical Sciences and Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan; Department of Chemical and Materials Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan.
| | - Sz-Hau Chu
- Department of Biomedical Sciences and Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
| | - Chien-Hung Li
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, Houston, TX 77204-5003, United States
| | - T Randall Lee
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, Houston, TX 77204-5003, United States
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20
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He W, Frueh J, Wu Z, He Q. Leucocyte Membrane-Coated Janus Microcapsules for Enhanced Photothermal Cancer Treatment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3637-44. [PMID: 27023433 DOI: 10.1021/acs.langmuir.5b04762] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Polyelectrolyte multilayer (PEM) capsules are promising candidates for many kinds of cancer detection and treatment but are usually intended to deliver cargo to specific sites or to destroy cancer cells based on photothermal effects from the outside. In this publication we prove that it is possible to kill cancer cells from the inside based on phagocytosed PEM capsules. In addition we show how to open the cells and bring the PEM capsules to the surface of cancer cells based on photothermal effects and rapid evaporation of water. Diffusion-based temperature determinations of the photothermal effect up to the evaporation temperature of water are presented.
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Affiliation(s)
- Wenping He
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Micro/Nanotechnology Research Centre, Harbin Institute of Technology , Yi Kuang Street 2, Harbin 150080, China
| | - Johannes Frueh
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Micro/Nanotechnology Research Centre, Harbin Institute of Technology , Yi Kuang Street 2, Harbin 150080, China
| | - Zhenwei Wu
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Micro/Nanotechnology Research Centre, Harbin Institute of Technology , Yi Kuang Street 2, Harbin 150080, China
| | - Qiang He
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Micro/Nanotechnology Research Centre, Harbin Institute of Technology , Yi Kuang Street 2, Harbin 150080, China
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21
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Nanocomposite hydrogel incorporating gold nanorods and paclitaxel-loaded chitosan micelles for combination photothermal–chemotherapy. Int J Pharm 2016; 497:210-21. [DOI: 10.1016/j.ijpharm.2015.11.032] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 11/05/2015] [Accepted: 11/16/2015] [Indexed: 12/18/2022]
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22
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Remotely triggered release of small molecules from LaB6@SiO2-loaded polycaprolactone microneedles. Acta Biomater 2015; 13:344-53. [PMID: 25463507 DOI: 10.1016/j.actbio.2014.11.040] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/14/2014] [Accepted: 11/18/2014] [Indexed: 12/18/2022]
Abstract
We established near-infrared (NIR)-light-triggered transdermal delivery systems by encapsulating NIR absorbers, silica-coated lanthanum hexaboride (LaB6@SiO2) nanostructures and the cargo molecule to be released in biodegradable polycaprolactone (PCL) microneedles. Acting as a local heat source when exposed to an NIR laser, these nanostructures cause a phase transition of the microneedles, thereby increasing the mobility of the polymer chains and triggering drug release from the microneedles. On IR thermal images, the light-triggered melting behavior of the LaB6@SiO2-loaded microneedles was observed. By adjusting the irradiation time and the laser on/off cycles, the amount of molecules released was controlled accurately. Drug release was switched on and off for at least three cycles, and a consistent dose was delivered in each cycle with high reproducibility. The designed microneedles were remotely triggered by laser irradiation for the controlled release of a chemotherapeutic drug, doxorubicin hydrochloride, in vivo. This system would enable dosages to be adjusted accurately to achieve a desired effect, feature a low off-state drug leakage to minimize basal effects and can increase the flexibility of pharmacotherapy performed to treat various medical conditions.
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23
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Chen Y, Li C, Hou Z, Huang S, Liu B, He F, Luo L, Lin J. Polyaniline electrospinning composite fibers for orthotopic photothermal treatment of tumors in vivo. NEW J CHEM 2015. [DOI: 10.1039/c5nj00327j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrospun nanocomposite fiber fabric, consisting of polyaniline nanoparticles, poly(ε-caprolactone), and gelatin, efficiently inhibited tumor growth in vivo by orthotopic photothermal treatment.
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Affiliation(s)
- Yinyin Chen
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Chunxia Li
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Zhiyao Hou
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Shanshan Huang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Bei Liu
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Fei He
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Laoyong Luo
- Nuclear Power Institute of China
- Chengdu 610000
- P. R. China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
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