101
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Croissant JG, Cattoën X, Durand JO, Wong Chi Man M, Khashab NM. Organosilica hybrid nanomaterials with a high organic content: syntheses and applications of silsesquioxanes. NANOSCALE 2016; 8:19945-19972. [PMID: 27897295 DOI: 10.1039/c6nr06862f] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Organic-inorganic hybrid materials garner properties from their organic and inorganic matrices as well as synergistic features, and therefore have recently attracted much attention at the nanoscale. Non-porous organosilica hybrid nanomaterials with a high organic content such as silsesquioxanes (R-SiO1.5, with R organic groups) and bridged silsesquioxanes (O1.5Si-R-SiO1.5) are especially attractive hybrids since they provide 20 to 80 weight percent of organic functional groups in addition to the known chemistry and stability of silica. In the organosilica family, silsesquioxanes (R-SiO1.5) stand between silicas (SiO2) and silicones (R2SiO), and are variously called organosilicas, ormosil (organically-modified silica), polysilsesquioxanes and silica hybrids. Herein, we comprehensively review non-porous silsesquioxane and bridged silsesquioxane nanomaterials and their applications in nanomedicine, electro-optics, and catalysis.
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Affiliation(s)
- Jonas G Croissant
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia.
| | - Xavier Cattoën
- Institut Néel, Université Grenoble Alpes and CNRS, Grenoble, France
| | - Jean-Olivier Durand
- Institut Charles Gerhardt Montpellier UMR-5253 CNRS-UM2-ENSCM-UM1cc, 1701 Place Eugène Bataillon, F-34095 Montpelliercedex 05, France
| | - Michel Wong Chi Man
- Institut Charles Gerhardt Montpellier UMR-5253 CNRS-UM2-ENSCM-UM1cc, 1701 Place Eugène Bataillon, F-34095 Montpelliercedex 05, France
| | - Niveen M Khashab
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia.
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102
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Jiang L, Yu Y, Li Y, Yu Y, Duan J, Zou Y, Li Q, Sun Z. Oxidative Damage and Energy Metabolism Disorder Contribute to the Hemolytic Effect of Amorphous Silica Nanoparticles. NANOSCALE RESEARCH LETTERS 2016; 11:57. [PMID: 26831695 PMCID: PMC4735100 DOI: 10.1186/s11671-016-1280-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 01/26/2016] [Indexed: 05/23/2023]
Abstract
Amorphous silica nanoparticles (SiNPs) have been extensively used in biomedical applications due to their particular characteristics. The increased environmental and iatrogenic exposure of SiNPs gained great concerns on the biocompatibility and hematotoxicity of SiNPs. However, the studies on the hemolytic effects of amorphous SiNPs in human erythrocytes are still limited. In this study, amorphous SiNPs with 58 nm were selected and incubated with human erythrocytes for different times (30 min and 2 h) at various concentrations (0, 10, 20, 50, and 100 μg/mL). SiNPs induced a dose-dependent increase in percent hemolysis and significantly increased the malondialdehyde (MDA) content and decreased the superoxide dismutase (SOD) activity, leading to oxidative damage in erythrocytes. Hydroxyl radical (·OH) levels were detected by electron spin resonance (ESR), and the decreased elimination rates of ·OH showed SiNPs induced low antioxidant ability in human erythrocytes. Na(+)-K(+) ATPase activity and Ca(2+)-Mg(2+) ATPase activity were found remarkably inhibited after SiNP treatment, possibly causing energy sufficient in erythrocytes. Percent hemolysis of SiNPs was significantly decreased in the presence of N-acetyl-cysteine (NAC) and adenosine diphosphate (ADP). It was concluded that amorphous SiNPs caused dose-dependent hemolytic effects in human erythrocytes. Oxidative damage and energy metabolism disorder contributed to the hemolytic effects of SiNPs in vitro.
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Affiliation(s)
- Lizhen Jiang
- School of Public Health, Capital Medical University, Beijing, 100069, People's Republic of China.
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, People's Republic of China.
| | - Yongbo Yu
- School of Public Health, Capital Medical University, Beijing, 100069, People's Republic of China.
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, People's Republic of China.
| | - Yang Li
- School of Public Health, Capital Medical University, Beijing, 100069, People's Republic of China.
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, People's Republic of China.
| | - Yang Yu
- School of Public Health, Capital Medical University, Beijing, 100069, People's Republic of China.
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, People's Republic of China.
| | - Junchao Duan
- School of Public Health, Capital Medical University, Beijing, 100069, People's Republic of China.
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, People's Republic of China.
| | - Yang Zou
- School of Public Health, Capital Medical University, Beijing, 100069, People's Republic of China.
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, People's Republic of China.
| | - Qiuling Li
- School of Public Health, Capital Medical University, Beijing, 100069, People's Republic of China.
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, People's Republic of China.
| | - Zhiwei Sun
- School of Public Health, Capital Medical University, Beijing, 100069, People's Republic of China.
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, People's Republic of China.
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103
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Omar H, Croissant JG, Alamoudi K, Alsaiari S, Alradwan I, Majrashi MA, Anjum DH, Martins P, Laamarti R, Eppinger J, Moosa B, Almalik A, Khashab NM. Biodegradable Magnetic Silica@Iron Oxide Nanovectors with Ultra-Large Mesopores for High Protein Loading, Magnetothermal Release, and Delivery. J Control Release 2016; 259:187-194. [PMID: 27913308 DOI: 10.1016/j.jconrel.2016.11.032] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/08/2016] [Accepted: 11/27/2016] [Indexed: 10/20/2022]
Abstract
The delivery of large cargos of diameter above 15nm for biomedical applications has proved challenging since it requires biocompatible, stably-loaded, and biodegradable nanomaterials. In this study, we describe the design of biodegradable silica-iron oxide hybrid nanovectors with large mesopores for large protein delivery in cancer cells. The mesopores of the nanomaterials spanned from 20 to 60nm in diameter and post-functionalization allowed the electrostatic immobilization of large proteins (e.g. mTFP-Ferritin, ~534kDa). Half of the content of the nanovectors was based with iron oxide nanophases which allowed the rapid biodegradation of the carrier in fetal bovine serum and a magnetic responsiveness. The nanovectors released large protein cargos in aqueous solution under acidic pH or magnetic stimuli. The delivery of large proteins was then autonomously achieved in cancer cells via the silica-iron oxide nanovectors, which is thus a promising for biomedical applications.
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Affiliation(s)
- Haneen Omar
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Jonas G Croissant
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Kholod Alamoudi
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Shahad Alsaiari
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Ibrahim Alradwan
- Life sciences and Environment Research Institute, Center of Excellence in Nanomedicine (CENM), King Abdulaziz City for Science and Technology (KACST), Riyadh 11461, Saudi Arabia
| | - Majed A Majrashi
- Life sciences and Environment Research Institute, Center of Excellence in Nanomedicine (CENM), King Abdulaziz City for Science and Technology (KACST), Riyadh 11461, Saudi Arabia
| | - Dalaver H Anjum
- Imaging and Characterization Laboratory, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Patricia Martins
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Ria Laamarti
- KAUST Catalysis Center (KCC), Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST)
| | - Jorg Eppinger
- KAUST Catalysis Center (KCC), Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST)
| | - Basem Moosa
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Abdulaziz Almalik
- Life sciences and Environment Research Institute, Center of Excellence in Nanomedicine (CENM), King Abdulaziz City for Science and Technology (KACST), Riyadh 11461, Saudi Arabia.
| | - Niveen M Khashab
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia..
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104
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Bagherifard S. Mediating bone regeneration by means of drug eluting implants: From passive to smart strategies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 71:1241-1252. [PMID: 27987680 DOI: 10.1016/j.msec.2016.11.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 10/06/2016] [Accepted: 11/02/2016] [Indexed: 02/03/2023]
Abstract
In addition to excellent biocompatibility and mechanical performance, the new generation of bone and craniofacial implants are expected to proactively contribute to the regeneration process and dynamically interact with the host tissue. To this end, integration and sustained delivery of therapeutic agents has become a rapidly expanding area. The incorporated active molecules can offer supplementary features including promoting oteoconduction and angiogenesis, impeding bacterial infection and modulating host body reaction. Major limitations of the current practices consist of low drug stability overtime, poor control of release profile and kinetics as well as complexity of finding clinically appropriate drug dosage. In consideration of the multifaceted cascade of bone regeneration process, this research is moving towards dual/multiple drug delivery, where precise control on simultaneous or sequential delivery, considering the possible synergetic interaction of the incorporated bioactive factors is of utmost importance. Herein, recent advancements in fabrication of synthetic load bearing implants equipped with various drug delivery systems are reviewed. Smart drug delivery solutions, newly developed to provide higher tempo-spatial control on the delivery of the pharmaceutical agents for targeted and stimuli responsive delivery are highlighted. The future trend of implants with bone drug delivery mechanisms and the most common challenges hindering commercialization and the bench to bedside progress of the developed technologies are covered.
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Affiliation(s)
- Sara Bagherifard
- Politecnico di Milano, Department of Mechanical Engineering, Milan, Italy.
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105
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Amirjalayer S, Cnossen A, Browne WR, Feringa BL, Buma WJ, Woutersen S. Direct Observation of a Dark State in the Photocycle of a Light-Driven Molecular Motor. J Phys Chem A 2016; 120:8606-8612. [PMID: 27684513 PMCID: PMC5098230 DOI: 10.1021/acs.jpca.6b09644] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
![]()
Controlling the excited-state properties
of light driven molecular
machines is crucial to achieving high efficiency and directed functionality.
A key challenge in achieving control lies in unravelling the complex
photodynamics and especially in identifying the role played by dark
states. Here we use the structure sensitivity and high time resolution
of UV-pump/IR-probe spectroscopy to build a detailed and comprehensive
model of the structural evolution of light driven molecular rotors.
The photodynamics of these chiral overcrowded alkene derivatives are
determined by two close-lying excited electronic states. The potential
energy landscape of these “bright” and “dark”
states gives rise to a broad excited-state electronic absorption band
over the entire mid-IR range that is probed for the first time and
modeled by quantum mechanical calculations. The transient IR vibrational
fingerprints observed in our studies allow for an unambiguous identification
of the identity of the “dark” electronic excited state
from which the photon’s energy is converted into motion, and
thereby pave the way for tuning the quantum yield of future molecular
rotors based on this structural motif.
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Affiliation(s)
- Saeed Amirjalayer
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster , Wilhelm-Klemm-Strasse 10, 48149 Münster, Germany.,Center for Nanotechnology , Heisenbergstrasse 11, 48149 Münster, Germany.,Molecular Photonics Group, Van 't Hoff Institute for Molecular Science, University of Amsterdam , Science Park 904, 1098XH Amsterdam, The Netherlands
| | - Arjen Cnossen
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Wesley R Browne
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Ben L Feringa
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Wybren J Buma
- Molecular Photonics Group, Van 't Hoff Institute for Molecular Science, University of Amsterdam , Science Park 904, 1098XH Amsterdam, The Netherlands
| | - Sander Woutersen
- Molecular Photonics Group, Van 't Hoff Institute for Molecular Science, University of Amsterdam , Science Park 904, 1098XH Amsterdam, The Netherlands
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106
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Vélez M. Dynamic and Active Proteins: Biomolecular Motors in Engineered Nanostructures. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 940:121-141. [DOI: 10.1007/978-3-319-39196-0_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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107
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Fu N, Liao J, Lin S, Sun K, Tian T, Zhu B, Lin Y. PCL-PEG-PCL film promotes cartilage regeneration in vivo. Cell Prolif 2016; 49:729-739. [PMID: 27647680 DOI: 10.1111/cpr.12295] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 08/20/2016] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE Management of chondral defects has long been a challenge due to poor self-healing capacity of articular cartilage. Many approaches, ranging from symptomatic treatment to structural cartilage regeneration, have obtained very limited satisfactory results. Cartilage tissue engineering, which involves optimized combination of novel scaffolds, cell sources and growth factors, has emerged as a promising strategy for cartilage regeneration and repair. In this study, the aim was to investigate the role of poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL, PCEC) PCEC scaffold in cartilage repair. MATERIALS AND METHODS First, PCEC film was fabricated, and its characteristics were tested using SEM and AFM. Cell (rASC - rat adipose-derived stem cells, and mASCs - green fluorescent mouse adipose-derived stem cells) morphologies on PCEC film were observed using SEM and fluorescence microscopy, after cell seeding. Tests of cell viability on PCEC film were conducted using the CCK-8 assay. Furthermore, full cartilage defects in rats were created, and PCEC films were implanted, to evaluate their healing effects, over 8 weeks. RESULTS It was found that PCEC film, as a biomaterial implant, possessed good in vitro properties for cell adhesion, migration and proliferation. Importantly, in the in vivo experiment, PCEC film exhibited desirable healing outcomes. CONCLUSIONS These results demonstrated that PCEC film was a good scaffold for cartilage tissue engineering for improving cell proliferation and adhesion and could lead to excellent repair of cartilage defects.
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Affiliation(s)
- Na Fu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, PR China
| | - Jinfeng Liao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shiyu Lin
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ke Sun
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Taoran Tian
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bofeng Zhu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research,College of Stomatology, Xi'an Jiaotong University, Xi'an, Shanxi, China.,Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shanxi, China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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108
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Wuttke S, Braig S, Preiß T, Zimpel A, Sicklinger J, Bellomo C, Rädler JO, Vollmar AM, Bein T. MOF nanoparticles coated by lipid bilayers and their uptake by cancer cells. Chem Commun (Camb) 2016; 51:15752-5. [PMID: 26359316 DOI: 10.1039/c5cc06767g] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report the synthesis of MOF@lipid nanoparticles as a versatile and powerful novel class of nanocarriers based on metal-organic frameworks (MOFs). We show that the MOF@lipid system can effectively store dye molecules inside the porous scaffold of the MOF while the lipid bilayer prevents their premature release. Efficient uptake of the MOF@lipid nanoparticles by cancer cells makes these nanocarriers promising for drug delivery and diagnostic purposes.
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Affiliation(s)
- Stefan Wuttke
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 11 (E), 81377 München, Germany.
| | - Simone Braig
- Department of Pharmacy University of Munich (LMU), Butenandtstraße 5, 81377 München, Germany
| | - Tobias Preiß
- Faculty of Physics and Center for NanoScience (CeNS), University of Munich (LMU), Geschwister Scholl Platz 1, 80539 München, Germany
| | - Andreas Zimpel
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 11 (E), 81377 München, Germany.
| | - Johannes Sicklinger
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 11 (E), 81377 München, Germany.
| | - Claudia Bellomo
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 11 (E), 81377 München, Germany.
| | - Joachim O Rädler
- Faculty of Physics and Center for NanoScience (CeNS), University of Munich (LMU), Geschwister Scholl Platz 1, 80539 München, Germany
| | - Angelika M Vollmar
- Department of Pharmacy University of Munich (LMU), Butenandtstraße 5, 81377 München, Germany
| | - Thomas Bein
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 11 (E), 81377 München, Germany.
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109
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Zhou Q, Fursule I, Berron BJ, Beck MJ. Toward Spatiotemporally Controlled Synthesis of Photoresponsive Polymers: Computational Design of Azobenzene-Containing Monomers for Light-Mediated ROMP. J Phys Chem A 2016; 120:7101-11. [DOI: 10.1021/acs.jpca.6b05807] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qunfei Zhou
- Department of Chemical and Materials Engineering and ‡Center for Computational
Sciences, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Ishan Fursule
- Department of Chemical and Materials Engineering and ‡Center for Computational
Sciences, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Brad J. Berron
- Department of Chemical and Materials Engineering and ‡Center for Computational
Sciences, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Matthew J. Beck
- Department of Chemical and Materials Engineering and ‡Center for Computational
Sciences, University of Kentucky, Lexington, Kentucky 40506, United States
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110
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Layer-by-layer hyaluronic acid/chitosan polyelectrolyte coated mesoporous silica nanoparticles as pH-responsive nanocontainers for optical bleaching of cellulose fabrics. Carbohydr Polym 2016; 146:174-80. [DOI: 10.1016/j.carbpol.2016.03.037] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/07/2016] [Accepted: 03/17/2016] [Indexed: 12/23/2022]
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111
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Lee AWH, Gates BD. Rapid Covalent Modification of Silicon Oxide Surfaces through Microwave-Assisted Reactions with Alcohols. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7284-7293. [PMID: 27396288 DOI: 10.1021/acs.langmuir.6b00662] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We demonstrate the method of a rapid covalent modification of silicon oxide surfaces with alcohol-containing compounds with assistance by microwave reactions. Alcohol-containing compounds are prevalent reagents in the laboratory, which are also relatively easy to handle because of their stability against exposure to atmospheric moisture. The condensation of these alcohols with the surfaces of silicon oxides is often hindered by slow reaction kinetics. Microwave radiation effectively accelerates this condensation reaction by heating the substrates and/or solvents. A variety of substrates were modified in this demonstration, such as silicon oxide films of various thicknesses, glass substrates such as microscope slides (soda lime), and quartz. The monolayers prepared through this strategy demonstrated the successful formation of covalent surface modifications of silicon oxides with water contact angles of up to 110° and typical hysteresis values of 2° or less. An evaluation of the hydrolytic stability of these monolayers demonstrated their excellent stability under acidic conditions. The techniques introduced in this article were successfully applied to tune the surface chemistry of silicon oxides to achieve hydrophobic, oleophobic, and/or charged surfaces.
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Affiliation(s)
- Austin W H Lee
- Department of Chemistry, Simon Fraser University , 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Byron D Gates
- Department of Chemistry, Simon Fraser University , 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
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112
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Feng Y, Panwar N, Tng DJH, Tjin SC, Wang K, Yong KT. The application of mesoporous silica nanoparticle family in cancer theranostics. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.04.019] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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113
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Yamamoto E, Kuroda K. Colloidal Mesoporous Silica Nanoparticles. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20150420] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Eisuke Yamamoto
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University
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114
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Generation Dependency of Stimuli-Responsive Dendron-Gated Mesoporous Silica Nanocontainers. Macromol Res 2016. [DOI: 10.1007/s13233-016-4056-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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115
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Chen Y, Shi J. Chemistry of Mesoporous Organosilica in Nanotechnology: Molecularly Organic-Inorganic Hybridization into Frameworks. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:3235-72. [PMID: 26936391 DOI: 10.1002/adma.201505147] [Citation(s) in RCA: 205] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Revised: 11/22/2015] [Indexed: 05/22/2023]
Abstract
Organic-inorganic hybrid materials aiming to combine the individual advantages of organic and inorganic components while overcoming their intrinsic drawbacks have shown great potential for future applications in broad fields. In particular, the integration of functional organic fragments into the framework of mesoporous silica to fabricate mesoporous organosilica materials has attracted great attention in the scientific community for decades. The development of such mesoporous organosilica materials has shifted from bulk materials to nanosized mesoporous organosilica nanoparticles (designated as MONs, in comparison with traditional mesoporous silica nanoparticles (MSNs)) and corresponding applications in nanoscience and nanotechnology. In this comprehensive review, the state-of-art progress of this important hybrid nanomaterial family is summarized, focusing on the structure/composition-performance relationship of MONs of well-defined morphology, nanostructure, and nanoparticulate dimension. The synthetic strategies and the corresponding mechanisms for the design and construction of MONs with varied morphologies, compositions, nanostructures, and functionalities are overviewed initially. Then, the following part specifically concentrates on their broad spectrum of applications in nanotechnology, mainly in nanomedicine, nanocatalysis, and nanofabrication. Finally, some critical issues, presenting challenges and the future development of MONs regarding the rational synthesis and applications in nanotechnology are summarized and discussed. It is highly expected that such a unique molecularly organic-inorganic nanohybrid family will find practical applications in nanotechnology, and promote the advances of this discipline regarding hybrid chemistry and materials.
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Affiliation(s)
- Yu Chen
- State Key Laboratory of High Performance Ceramic and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-Xi Road, Shanghai, 200050, P. R. China
| | - Jianlin Shi
- State Key Laboratory of High Performance Ceramic and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-Xi Road, Shanghai, 200050, P. R. China
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116
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Vecchione R, Luciani G, Calcagno V, Jakhmola A, Silvestri B, Guarnieri D, Belli V, Costantini A, Netti PA. Multilayered silica-biopolymer nanocapsules with a hydrophobic core and a hydrophilic tunable shell thickness. NANOSCALE 2016; 8:8798-8809. [PMID: 27065306 DOI: 10.1039/c6nr01192f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Stable, biocompatible, multifunctional and multicompartment nanocarriers are much needed in the field of nanomedicine. Here, we report a simple, novel strategy to design an engineered nanocarrier system featuring an oil-core/hybrid polymer/silica-shell. Silica shells with a tunable thickness were grown in situ, directly around a highly mono-disperse and stable oil-in-water emulsion system, stabilized by a double bio-functional polyelectrolyte heparin/chitosan layer. Such silica showed a complete degradation in a physiological medium (SBF) in a time frame of three days. Moreover, the outer silica shell was coated with polyethyleneglycol (PEG) in order to confer antifouling properties to the final nanocapsule. The outer silica layer combined its properties (it is an optimal bio-interface for bio-conjugations and for the embedding of hydrophilic drugs in the porous structure) with the capability to stabilize the oil core for the confinement of high payloads of lipophilic tracers (e.g., CdSe quantum dots, Nile Red) and drugs. In addition, polymer layers--besides conferring stability to the emulsion while building the silica shell--can be independently exploited if suitably functionalized, as demonstrated by conjugating chitosan with fluorescein isothiocyanate. Such numerous features in a single nanocarrier system make it very intriguing as a multifunctional platform for smart diagnosis and therapy.
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Affiliation(s)
- Raffaele Vecchione
- Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci, 53 80125 Napoli, Italy. and Centro di Ricerca Interdipartimentale sui Biomateriali CRIB, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy
| | - Giuseppina Luciani
- Centro di Ricerca Interdipartimentale sui Biomateriali CRIB, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy and Dipartimento di Ingegneria Chimica dei Materiali e della Produzione Industriale, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy
| | - Vincenzo Calcagno
- Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci, 53 80125 Napoli, Italy. and Centro di Ricerca Interdipartimentale sui Biomateriali CRIB, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy
| | - Anshuman Jakhmola
- Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci, 53 80125 Napoli, Italy.
| | - Brigida Silvestri
- Dipartimento di Ingegneria Chimica dei Materiali e della Produzione Industriale, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy
| | - Daniela Guarnieri
- Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci, 53 80125 Napoli, Italy. and Centro di Ricerca Interdipartimentale sui Biomateriali CRIB, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy
| | - Valentina Belli
- Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci, 53 80125 Napoli, Italy. and Centro di Ricerca Interdipartimentale sui Biomateriali CRIB, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy
| | - Aniello Costantini
- Centro di Ricerca Interdipartimentale sui Biomateriali CRIB, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy and Dipartimento di Ingegneria Chimica dei Materiali e della Produzione Industriale, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy
| | - Paolo A Netti
- Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci, 53 80125 Napoli, Italy. and Centro di Ricerca Interdipartimentale sui Biomateriali CRIB, Università di Napoli Federico II, Piazzale Tecchio, 80 80125 Napoli, Italy
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117
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Lee J, Oh ET, Yoon H, Kim H, Park HJ, Kim C. A mesoporous nanocontainer gated by a stimuli-responsive peptide for selective triggering of intracellular drug release. NANOSCALE 2016; 8:8070-8077. [PMID: 27021628 DOI: 10.1039/c5nr09280a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Mesoporous silica nanocontainers (MSNs) with biologically responsive gatekeepers have great potential for effective delivery of cargo molecules to the desired sites. For that purpose, peptides could be effective candidates as gatekeepers because of their bioresponsiveness and targeting capability. Taking advantage of the zinc finger domain peptide (CXXC), we designed a biocompatible all-peptide gatekeeper (WCGKC) with on-off gatekeeping capability through stimulus-responsive conformational conversion and the steric bulkiness of the tryptophan unit. The turn structure induced by an intramolecular disulfide bond of the peptide gatekeeper (WCGKC-SS) completely inhibited the release of the entrapped doxorubicin (DOX). However, upon reduction of the disulfide bond by glutathione (GSH), the peptide conformation was converted to a random structure, which opened the orifice of the mesopore leading to the release of DOX. The amine moiety of the lysine of the peptide gatekeeper was PEGylated to enhance dispersion stability and biocompatibility of the nanocontainer. Furthermore, the MSNs with the peptide gatekeeper (PEG-WCGKC-SS-Si) selectively released the entrapped DOX in A549 human lung cancer cells in a controlled manner triggered by intracellular GSH, but not in CCD normal lung cells containing a low intracellular GSH level. In A549 cells, DOX-loaded PEG-WCGKC-SS-Si exhibited about 10-times higher cytotoxicity induced by apoptosis than that in CCD cells.
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Affiliation(s)
- Jeonghun Lee
- Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea.
| | - Eun-Taex Oh
- Department of Biomedical Sciences, School of Medicine, Inha University, Incheon 402-751, Korea
| | - Haerry Yoon
- Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea.
| | - Hyunmi Kim
- Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea.
| | - Heon Joo Park
- Department of Microbiology, Hypoxia-related Disease Research Center, College of Medicine, Inha University, Incheon 402-751, Korea.
| | - Chulhee Kim
- Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea.
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118
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Jiang B, Chen LJ, Zhang Y, Tan HW, Xu L, Yang HB. Hierarchical self-assembly of triangular metallodendrimers into the ordered nanostructures. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.03.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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119
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Protein-gold clusters-capped mesoporous silica nanoparticles for high drug loading, autonomous gemcitabine/doxorubicin co-delivery, and in-vivo tumor imaging. J Control Release 2016; 229:183-191. [PMID: 27016140 DOI: 10.1016/j.jconrel.2016.03.030] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 03/17/2016] [Accepted: 03/18/2016] [Indexed: 01/01/2023]
Abstract
Functional nanocarriers capable of transporting high drug contents without premature leakage and to controllably deliver several drugs are needed for better cancer treatments. To address this clinical need, gold cluster bovine serum albumin (AuNC@BSA) nanogates were engineered on mesoporous silica nanoparticles (MSN) for high drug loadings and co-delivery of two different anticancer drugs. The first drug, gemcitabine (GEM, 40wt%), was loaded in positively-charged ammonium-functionalized MSN (MSN-NH3(+)). The second drug, doxorubicin (DOX, 32wt%), was bound with negatively-charged AuNC@BSA electrostatically-attached onto MSN-NH3(+), affording highly loaded pH-responsive MSN-AuNC@BSA nanocarriers. The co-delivery of DOX and GEM was achieved for the first time via an inorganic nanocarrier, possessing a zero-premature leakage behavior as well as drug loading capacities seven times higher than polymersome NPs. Besides, unlike the majority of strategies used to cap the pores of MSN, AuNC@BSA nanogates are biotools and were applied for targeted red nuclear staining and in-vivo tumor imaging. The straightforward non-covalent combination of MSN and gold-protein cluster bioconjugates thus leads to a simple, yet multifunctional nanotheranostic for the next generation of cancer treatments.
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120
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Hakeem A, Zahid F, Duan R, Asif M, Zhang T, Zhang Z, Cheng Y, Lou X, Xia F. Cellulose conjugated FITC-labelled mesoporous silica nanoparticles: intracellular accumulation and stimuli responsive doxorubicin release. NANOSCALE 2016; 8:5089-5097. [PMID: 26868866 DOI: 10.1039/c5nr08753h] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Herein, we design novel cellulose conjugated mesoporous silica nanoparticle (CLS-MSP) based nanotherapeutics for stimuli responsive intracellular doxorubicin (DOX) delivery. DOX molecules are entrapped in pores of the fabricated mesoporous silica nanoparticles (MSPs) while cellulose is used as an encapsulating material through esterification on the outlet of the pores of the MSPs to avoid premature DOX release under physiological conditions. In in vitro studies, stimuli responsive DOX release is successfully achieved from DOX loaded cellulose conjugated mesoporous silica nanoparticles (DOX/CLS-MSPs) by pH and cellulase triggers. Intracellular accumulation of DOX/CLS-MSPs in human liver cancer cells (HepG2 cells) is investigated through confocal microscope magnification. Cell viability of HepG2 cells is determined as the percentage of the cells incubated with DOX/CLS-MSPs compared with that of non-incubated cells through an MTT assay.
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Affiliation(s)
- Abdul Hakeem
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. and Lasbela University of Agriculture, Water and Marine Sciences Uthal, Pakistan
| | - Fouzia Zahid
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Ruixue Duan
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Muhammad Asif
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Tianchi Zhang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Zhenyu Zhang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Yong Cheng
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Xiaoding Lou
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Fan Xia
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. and Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Huazhong University of Science and Technology, Wuhan 430074, China. and Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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121
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Díez P, Sánchez A, de la Torre C, Gamella M, Martínez-Ruíz P, Aznar E, Martínez-Máñez R, Pingarrón JM, Villalonga R. Neoglycoenzyme-Gated Mesoporous Silica Nanoparticles: Toward the Design of Nanodevices for Pulsatile Programmed Sequential Delivery. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7657-7665. [PMID: 26966914 DOI: 10.1021/acsami.5b12645] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report herein the design of a stimulus-programmed pulsatile delivery system for sequential cargo release based on the use of a lactose-modified esterase as a capping agent in phenylboronic acid functionalized mesoporous silica nanoparticles. The dual-release mechanism was based on the distinct stability of the cyclic boronic acid esters formed with lactose residues and the long naturally occurring glycosylation chains in the modified neoglycoenzyme. Cargo delivery in succession was achieved using glucose and ethyl butyrate as triggers.
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Affiliation(s)
- Paula Díez
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid , 28040 Madrid, Spain
| | - Alfredo Sánchez
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid , 28040 Madrid, Spain
| | - Cristina de la Torre
- Instituto de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Centro Mixto Universidad Politécnica de Valencia, Universidad de Valencia , 46022 Valencia, Spain
- Departamento de Química y CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universidad Politécnica de Valencia , Camino de Vera s/n, 46022 Valencia, Spain
| | - María Gamella
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid , 28040 Madrid, Spain
| | - Paloma Martínez-Ruíz
- Department of Organic Chemistry I, Faculty of Chemistry, Complutense University of Madrid , 28040 Madrid, Spain
| | - Elena Aznar
- Instituto de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Centro Mixto Universidad Politécnica de Valencia, Universidad de Valencia , 46022 Valencia, Spain
- Departamento de Química y CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universidad Politécnica de Valencia , Camino de Vera s/n, 46022 Valencia, Spain
| | - Ramón Martínez-Máñez
- Instituto de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Centro Mixto Universidad Politécnica de Valencia, Universidad de Valencia , 46022 Valencia, Spain
- Departamento de Química y CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universidad Politécnica de Valencia , Camino de Vera s/n, 46022 Valencia, Spain
| | - José M Pingarrón
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid , 28040 Madrid, Spain
- IMDEA Nanoscience, Cantoblanco Universitary City , 28049 Madrid, Spain
| | - Reynaldo Villalonga
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid , 28040 Madrid, Spain
- IMDEA Nanoscience, Cantoblanco Universitary City , 28049 Madrid, Spain
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122
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Prasad R, Aiyer S, Chauhan DS, Srivastava R, Selvaraj K. Bioresponsive carbon nano-gated multifunctional mesoporous silica for cancer theranostics. NANOSCALE 2016; 8:4537-4546. [PMID: 26753966 DOI: 10.1039/c5nr06756a] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Designing bioresponsive nanocarriers for controlled and efficient intracellular drug release for cancer therapy is a major thrust area in nanomedicine. With recent recognition by the US FDA as a safe material for human trials, mesoporous silica nanoparticles (MSNPs) are being extensively explored as promising theranostic agents. Green fluorescent carbon quantum dots (CQDs), though known as possible alternatives for their more toxic and relatively less efficient predecessors, are less known as gate keepers for drug release control. We report for the first time an efficient bioresponse of CQDs when judiciously designed using glutathione cleavable (redox responsive) disulphide bonds. When the anticancer drug doxorubicin loaded MSNPs are capped with these CQDs, they display promising drug release control on exposure to a mimicked intracellular cancer environment. Their dual functionality is well established with good control on preventing the premature release and exceptional bio-imaging of HeLa cancer cells. Fluorescence images prove selective targeting of HeLa cells by overexpression of folate receptors from the surface functionalised folic acid ligand. Extensive characterisation using XRD, TEM, BET analysis, drug loading tests, drug release kinetics, MTT assay and fluoroscence cell imaging helps in understanding the multifunctionalities of the successful design, extending its scope with exciting prospects towards non-invasive targeted drug delivery and bio-imaging for effective cancer diagnosis and treatment.
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Affiliation(s)
- Rajendra Prasad
- Academy of Scientific and Innovative Research (AcSIR), National Chemical Laboratory, Pune-411008, India and Nano and Computational Materials Lab, Catalysis Division, CSIR-National Chemical Laboratory, Pune-411008, India.
| | - Sandhya Aiyer
- Nano and Computational Materials Lab, Catalysis Division, CSIR-National Chemical Laboratory, Pune-411008, India.
| | - Deepak S Chauhan
- Department of Bioscience and Bioengineering, IIT Bombay, Powai, Mumbai, 400076, India
| | - Rohit Srivastava
- Department of Bioscience and Bioengineering, IIT Bombay, Powai, Mumbai, 400076, India
| | - Kaliaperumal Selvaraj
- Academy of Scientific and Innovative Research (AcSIR), National Chemical Laboratory, Pune-411008, India and Nano and Computational Materials Lab, Catalysis Division, CSIR-National Chemical Laboratory, Pune-411008, India.
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123
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Baeza A, Manzano M, Colilla M, Vallet-Regí M. Recent advances in mesoporous silica nanoparticles for antitumor therapy: our contribution. Biomater Sci 2016; 4:803-13. [PMID: 26902682 DOI: 10.1039/c6bm00039h] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Since 2001, when our research group proposed for the first time MCM-41 as a drug release system, the scientific community has demonstrated a growing interest in mesoporous silica nanoparticles (MSNs) for their revolutionary potential in nanomedicine. Among the diverse pathologies that can be treated with MSNs, cancer has received increasing attention. MSNs can be loaded with large amounts of therapeutic cargoes and once intravenously administrated preferentially accumulate in solid tumours via the enhanced permeation and retention (EPR) effect. Herein we report the recent developments achieved by our research group as a pioneer in this field, highlighting: the design of sophisticated MSNs as stimuli-responsive drug delivery systems to release the entrapped cargo upon exposure to a given stimulus while preventing the premature release of highly cytotoxic drugs before reaching the target; transporting non-toxic prodrugs and the enzyme responsible for its conversion into cytotoxic agents into the same MSNs; improving the selectivity and cellular uptake by cancer cells by active targeting of MSNs; increasing the penetration of MSNs within the tumour mass, which is one of the major challenges in the use of NPs to treat solid tumours.
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Affiliation(s)
- Alejandro Baeza
- Departamento de Química Inorgánica y Bioinorgánica. Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12, Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain.
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124
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You Y, Wang Z, Ran H, Zheng Y, Wang D, Xu J, Wang Z, Chen Y, Li P. Nanoparticle-enhanced synergistic HIFU ablation and transarterial chemoembolization for efficient cancer therapy. NANOSCALE 2016; 8:4324-39. [PMID: 26837265 DOI: 10.1039/c5nr08292g] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
High-intensity focused ultrasound (HIFU) is being generally explored as a non-invasive therapeutic modality to treat solid tumors. However, the clinical use of HIFU for large and deep tumor-ablation applications such as hepatocellular carcinoma (HCC) is currently entangled with long treatment duration and high operating energy. This critical issue can be potentially resolved by the introduction of HIFU synergistic agents (SAs). Traditional SAs such as microbubbles and microparticles face the problem of large size, short cycle time, damage to mononuclear phagocytic system and unsatisfactory targeting efficiency. In this work, we have developed a facile and versatile nanoparticle-based HIFU synergistic cancer surgery enhanced by transarterial chemoembolization for high-efficiency HCC treatment based on elaborately designed Fe3O4-PFH/PLGA nanocapsules. Multifunctional Fe3O4-PFH/PLGA nanocapsules were administrated into tumor tissues via transarterial injection combined with Lipiodol to achieve high tumor accumulation because transarterial chemoembolization by Lipiodol could block the blood vessels. The high synergistic HIFU ablation effect was successfully achieved against HCC tumors based on the phase-transformation performance of the perfluorohexane (PFH) inner core in the composite nanocapsules, as systematically demonstrated in VX2 liver tumor xenograft in rabbits. Multifunctional Fe3O4-PFH/PLGA nanocapsules were also demonstrated as efficient contrast agents for ultrasound, magnetic resonance and photoacoustic tri-modality imagings, potentially applicable for imaging-guided HIFU synergistic surgery. Therefore, the elaborate integration of traditional transarterial chemoembolization with recently developed nanoparticle-enhanced HIFU cancer surgery could efficiently enhance the HCC cancer treatment outcome, initiating a new and efficient therapeutic protocol/modality for clinic cancer treatment.
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Affiliation(s)
- Yufeng You
- Institute of Ultrasound Imaging & Department of Ultrasound, the Second Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, P. R. China. and Department of Radiology, Central Hospital of Enshi Autonomous Prefecture, Hubei, 445000, P. R. 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, P. R. 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, P. R. China.
| | - Yuanyi Zheng
- Institute of Ultrasound Imaging & Department of Ultrasound, the Second Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, P. R. China.
| | - Dong Wang
- Department of Ultrasound, Children's Hospital Affiliated to Chongqing Medical University, Chongqing, 400014, P. R. China
| | - Jinshun Xu
- Institute of Ultrasound Imaging & Department of Ultrasound, the Second Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, P. R. China.
| | - Zhibiao Wang
- College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
| | - Pan Li
- Institute of Ultrasound Imaging & Department of Ultrasound, the Second Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, P. R. China.
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125
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Jalani G, Naccache R, Rosenzweig DH, Haglund L, Vetrone F, Cerruti M. Photocleavable Hydrogel-Coated Upconverting Nanoparticles: A Multifunctional Theranostic Platform for NIR Imaging and On-Demand Macromolecular Delivery. J Am Chem Soc 2016; 138:1078-83. [DOI: 10.1021/jacs.5b12357] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ghulam Jalani
- Department
of Mining and Materials Engineering, McGill University, Montreal, QC H3A 0C5, Canada
| | - Rafik Naccache
- Institut
National de la Recherche Scientifique-Énergie, Matériaux
et Télécommunications, Université du Québec, Varennes, QC J3X 1S2, Canada
| | | | - Lisbet Haglund
- Department
of Surgery, McGill University, Montreal, QC H3G 1A4, Canada
| | - Fiorenzo Vetrone
- Institut
National de la Recherche Scientifique-Énergie, Matériaux
et Télécommunications, Université du Québec, Varennes, QC J3X 1S2, Canada
| | - Marta Cerruti
- Department
of Mining and Materials Engineering, McGill University, Montreal, QC H3A 0C5, Canada
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126
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Aznar E, Oroval M, Pascual L, Murguía JR, Martínez-Máñez R, Sancenón F. Gated Materials for On-Command Release of Guest Molecules. Chem Rev 2016; 116:561-718. [DOI: 10.1021/acs.chemrev.5b00456] [Citation(s) in RCA: 381] [Impact Index Per Article: 47.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Elena Aznar
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM), Unidad mixta Universitat Politècnica de València-Universitat de València, Camino
de Vera s/n, 46022 València, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Mar Oroval
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM), Unidad mixta Universitat Politècnica de València-Universitat de València, Camino
de Vera s/n, 46022 València, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Lluís Pascual
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM), Unidad mixta Universitat Politècnica de València-Universitat de València, Camino
de Vera s/n, 46022 València, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Jose Ramón Murguía
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM), Unidad mixta Universitat Politècnica de València-Universitat de València, Camino
de Vera s/n, 46022 València, Spain
- Departamento
de Biotecnología, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Ramón Martínez-Máñez
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM), Unidad mixta Universitat Politècnica de València-Universitat de València, Camino
de Vera s/n, 46022 València, Spain
- Departamento
de Química, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Félix Sancenón
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM), Unidad mixta Universitat Politècnica de València-Universitat de València, Camino
de Vera s/n, 46022 València, Spain
- Departamento
de Química, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
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127
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Taghavi F, Gholizadeh M, Saljooghi AS. Deferasirox loaded on fumed silica nanoparticles used in cancer treatment. NEW J CHEM 2016. [DOI: 10.1039/c5nj02790j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fumed silica nanoparticles loaded with deferasirox are three and five times more cytotoxic than cisplatin and deferasirox against MDA-MB-23, respectively.
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128
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Bertucci A, Prasetyanto EA, Septiadi D, Manicardi A, Brognara E, Gambari R, Corradini R, De Cola L. Combined Delivery of Temozolomide and Anti-miR221 PNA Using Mesoporous Silica Nanoparticles Induces Apoptosis in Resistant Glioma Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:5687-95. [PMID: 26395266 DOI: 10.1002/smll.201500540] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 07/22/2015] [Indexed: 05/14/2023]
Abstract
Mesoporous silica nanoparticles (MSNPs), 100 nm in size, incorporating a Cy5 fluorophore within the silica framework, are synthesized and loaded with the anti-cancer drug temozolomide (TMZ), used in the treatment of gliomas. The surface of the particles is then decorated, using electrostatic interactions, with a polyarginine-peptide nucleic acid (R8-PNA) conjugate targeting the miR221 microRNA. The multi-functional nanosystem thus obtained is rapidly internalized into glioma C6 or T98G cells. The anti-miR activity of the PNA is retained, as confirmed by reverse transcription polymerase chain reaction (RT-PCR) measurements and induction of apoptosis is observed in temozolomide-resistant cell lines. The TMZ-loaded MSNPs show an enhanced pro-apoptotic effect, and the combined effect of TMZ and R8-PNA in the MSNPs shows the most effective induction of apoptosis (70.9% of apoptotic cells) thus far achieved in the temozolomide-resistant T98G cell line.
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Affiliation(s)
- Alessandro Bertucci
- Institut de science et d'ingénierie supramoléculaire (ISIS) & icFRC, Université de Strasbourg & CNRS, 8 Rue Gaspard Monge, Strasbourg, 67000, France
- Dipartimento di Chimica, Università di Parma, Parco Area delle Scienze 17/A, Parma, 43124, Italy
| | - Eko Adi Prasetyanto
- Institut de science et d'ingénierie supramoléculaire (ISIS) & icFRC, Université de Strasbourg & CNRS, 8 Rue Gaspard Monge, Strasbourg, 67000, France
| | - Dedy Septiadi
- Institut de science et d'ingénierie supramoléculaire (ISIS) & icFRC, Université de Strasbourg & CNRS, 8 Rue Gaspard Monge, Strasbourg, 67000, France
| | - Alex Manicardi
- Dipartimento di Chimica, Università di Parma, Parco Area delle Scienze 17/A, Parma, 43124, Italy
| | - Eleonora Brognara
- Dipartimento di Scienze della Vita e Biotecnologie, Università di Ferrara, Via Luigi Borsari 46, Ferrara, 44121, Italy
| | - Roberto Gambari
- Dipartimento di Scienze della Vita e Biotecnologie, Università di Ferrara, Via Luigi Borsari 46, Ferrara, 44121, Italy
| | - Roberto Corradini
- Dipartimento di Chimica, Università di Parma, Parco Area delle Scienze 17/A, Parma, 43124, Italy
| | - Luisa De Cola
- Institut de science et d'ingénierie supramoléculaire (ISIS) & icFRC, Université de Strasbourg & CNRS, 8 Rue Gaspard Monge, Strasbourg, 67000, France
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129
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Boccardi E, Philippart A, Juhasz-Bortuzzo JA, Beltrán AM, Novajra G, Vitale-Brovarone C, Spiecker E, Boccaccini AR. Uniform Surface Modification of 3D Bioglass(®)-Based Scaffolds with Mesoporous Silica Particles (MCM-41) for Enhancing Drug Delivery Capability. Front Bioeng Biotechnol 2015; 3:177. [PMID: 26594642 PMCID: PMC4635563 DOI: 10.3389/fbioe.2015.00177] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 10/15/2015] [Indexed: 12/31/2022] Open
Abstract
The design and characterization of a new family of multifunctional scaffolds based on bioactive glass (BG) of 45S5 composition for bone tissue engineering and drug delivery applications are presented. These BG-based scaffolds are developed via a replication method of polyurethane packaging foam. In order to increase the therapeutic functionality, the scaffolds were coated with mesoporous silica particles (MCM-41), which act as an in situ drug delivery system. These sub-micron spheres are characterized by large surface area and pore volume with a narrow pore diameter distribution. The solution used for the synthesis of the silica mesoporous particles was designed to obtain a high-ordered mesoporous structure and spherical shape – both are key factors for achieving the desired controlled drug release. The MCM-41 particles were synthesized directly inside the BG-based scaffolds, and the drug-release capability of this combined system was evaluated. Moreover, the effect of MCM-41 particle coating on the bioactivity of the BG-based scaffolds was assessed. The results indicate that it is possible to obtain a multifunctional scaffold system characterized by high and interconnected porosity, high bioactivity, and sustained drug delivery capability.
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Affiliation(s)
- Elena Boccardi
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander University Erlangen-Nürnberg , Erlangen , Germany
| | - Anahí Philippart
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander University Erlangen-Nürnberg , Erlangen , Germany
| | - Judith A Juhasz-Bortuzzo
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander University Erlangen-Nürnberg , Erlangen , Germany
| | - Ana M Beltrán
- Center for Nanoanalysis and Electron Microscopy (CENEM), Institute of Micro- and Nanostructure Research, Department of Materials Science and Engineering, Friedrich-Alexander University Erlangen-Nürnberg , Erlangen , Germany
| | - Giorgia Novajra
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino , Turin , Italy
| | - Chiara Vitale-Brovarone
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino , Turin , Italy
| | - Erdmann Spiecker
- Center for Nanoanalysis and Electron Microscopy (CENEM), Institute of Micro- and Nanostructure Research, Department of Materials Science and Engineering, Friedrich-Alexander University Erlangen-Nürnberg , Erlangen , Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander University Erlangen-Nürnberg , Erlangen , Germany
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130
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Fatieiev Y, Croissant JG, Julfakyan K, Deng L, Anjum DH, Gurinov A, Khashab NM. Enzymatically degradable hybrid organic-inorganic bridged silsesquioxane nanoparticles for in vitro imaging. NANOSCALE 2015; 7:15046-15050. [PMID: 26165456 DOI: 10.1039/c5nr03065j] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We describe biodegradable bridged silsesquioxane (BS) composite nanomaterials with an unusually high organic content (ca. 50%) based on oxamide components mimicking amino acid biocleavable groups. Unlike most bulk BS materials, the design of sub-200 nm nearly monodisperse nanoparticles (NPs) was achieved. These enzymatically degradable BS NPs were further tested as promising imaging nanoprobes.
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Affiliation(s)
- Y Fatieiev
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
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131
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Hwang AA, Lee BY, Clemens DL, Dillon BJ, Zink JI, Horwitz MA. pH-Responsive Isoniazid-Loaded Nanoparticles Markedly Improve Tuberculosis Treatment in Mice. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:5066-78. [PMID: 26193431 PMCID: PMC5628743 DOI: 10.1002/smll.201500937] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 06/23/2015] [Indexed: 05/07/2023]
Abstract
Tuberculosis is a major global health problem for which improved therapeutics are needed to shorten the course of treatment and combat emergence of drug resistance. Mycobacterium tuberculosis, the etiologic agent of tuberculosis, is an intracellular pathogen of mononuclear phagocytes. As such, it is an ideal pathogen for nanotherapeutics because macrophages avidly ingest nanoparticles even without specific targeting molecules. Hence, a nanoparticle drug delivery system has the potential to target and deliver high concentrations of drug directly into M. tuberculosis-infected cells-greatly enhancing efficacy while avoiding off-target toxicities. Stimulus-responsive mesoporous silica nanoparticles of two different sizes, 100 and 50 nm, are developed as carriers for the major anti-tuberculosis drug isoniazid in a prodrug configuration. The drug is captured by the aldehyde-functionalized nanoparticle via hydrazone bond formation and coated with poly(ethylene imine)-poly(ethylene glycol) (PEI-PEG). The drug is released from the nanoparticles in response to acidic pH at levels that naturally occur within acidified endolysosomes. It is demonstrated that isoniazid-loaded PEI-PEG-coated nanoparticles are avidly ingested by M. tuberculosis-infected human macrophages and kill the intracellular bacteria in a dose-dependent manner. It is further demonstrated in a mouse model of pulmonary tuberculosis that the nanoparticles are well tolerated and much more efficacious than an equivalent amount of free drug.
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Affiliation(s)
- Angela A Hwang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 3013 Young Dr. East, CA, 90095-1569, USA
| | - Bai-Yu Lee
- Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, CHS 37-121, 10833 Le Conte Ave., CA, 90095-1688, USA
| | - Daniel L Clemens
- Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, CHS 37-121, 10833 Le Conte Ave., CA, 90095-1688, USA
| | - Barbara Jane Dillon
- Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, CHS 37-121, 10833 Le Conte Ave., CA, 90095-1688, USA
| | - Jeffrey I Zink
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 3013 Young Dr. East, CA, 90095-1569, USA
- California NanoSystems Institute, University of California, Los Angeles, CA, 90095-8352, USA
| | - Marcus A Horwitz
- Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, CHS 37-121, 10833 Le Conte Ave., CA, 90095-1688, USA
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132
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Baek S, Singh RK, Khanal D, Patel KD, Lee EJ, Leong KW, Chrzanowski W, Kim HW. Smart multifunctional drug delivery towards anticancer therapy harmonized in mesoporous nanoparticles. NANOSCALE 2015; 7:14191-216. [PMID: 26260245 DOI: 10.1039/c5nr02730f] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Nanomedicine seeks to apply nanoscale materials for the therapy and diagnosis of diseased and damaged tissues. Recent advances in nanotechnology have made a major contribution to the development of multifunctional nanomaterials, which represents a paradigm shift from single purpose to multipurpose materials. Multifunctional nanomaterials have been proposed to enable simultaneous target imaging and on-demand delivery of therapeutic agents only to the specific site. Most advanced systems are also responsive to internal or external stimuli. This approach is particularly important for highly potent drugs (e.g. chemotherapeutics), which should be delivered in a discreet manner and interact with cells/tissues only locally. Both advances in imaging and precisely controlled and localized delivery are critically important in cancer treatment, and the use of such systems - theranostics - holds great promise to minimise side effects and boost therapeutic effectiveness of the treatment. Among others, mesoporous silica nanoparticles (MSNPs) are considered one of the most promising nanomaterials for drug delivery. Due to their unique intrinsic features, including tunable porosity and size, large surface area, structural diversity, easily modifiable chemistry and suitability for functionalization, and biocompatibility, MSNPs have been extensively utilized as multifunctional nanocarrier systems. The combination or hybridization with biomolecules, drugs, and other nanoparticles potentiated the ability of MSNPs towards multifunctionality, and even smart actions stimulated by specified signals, including pH, optical signal, redox reaction, electricity and magnetism. This paper provides a comprehensive review of the state-of-the-art of multifunctional, smart drug delivery systems centered on advanced MSNPs, with special emphasis on cancer related applications.
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Affiliation(s)
- Seonmi Baek
- Faculty of Pharmacy, The University of Sydney, NSW 2006, Australia.
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133
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Liu ZE, Wang J, Li Y, Hu X, Yin J, Peng Y, Li Z, Li Y, Li B, Yuan Q. Near-Infrared Light Manipulated Chemoselective Reductions Enabled by an Upconversional Supersandwich Nanostructure. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19416-19423. [PMID: 26270621 DOI: 10.1021/acsami.5b05633] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Core-satellite is one of the most powerful superstructures since it leads to enhanced or completely new properties through compatible combination of each component. Here we create a novel ceria-based core-shell-satellite supersandwich structure with near-infrared (NIR) light manipulated catalytic activity by integrating the upconversion luminescent and catalytic functionality of CeO2 nanoparticles. Specifically, lanthanide-doped octahedral CeO2 nanoparticles (o-CeO2) are coated with silica layer (o-CeO2@SiO2) to enhance their luminescence intensity. The pH-dependent catalytic active cubic CeO2 nanoparticles (c-CeO2) are then assembled on the surface of o-CeO2@SiO2 to form the supersandwich structure (o-CeO2@SiO2@c-CeO2) following a classic chemical reaction. The upconversion quantum yield of o-CeO2 in this nanostructure can be nearly doubled. Furthermore, under NIR light irradiation, the o-CeO2@SiO2@c-CeO2 supersandwich structure based composite catalyst displays superior catalytic activity in selective reduction of aromatic nitro compounds to corresponding azo compounds, and the composite photocatalyst can be easily recycled for several times without significant loss of catalytic activity. This strategy may serve as a universal method for the construction of multifunctional nanostructures and shed light on the green chemistry for chemical synthesis.
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Affiliation(s)
- Zi-en Liu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
- School of Chemistry Engineering and Technology, China University of Mining and Technology , Xuzhou 221008, China
| | - Jie Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Yan Li
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Xiaoxia Hu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Junwen Yin
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Yeqing Peng
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Zhihao Li
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Yawen Li
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Baomin Li
- School of Chemistry Engineering and Technology, China University of Mining and Technology , Xuzhou 221008, China
| | - Quan Yuan
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
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134
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Berg M, Nozinovic S, Engeser M, Lützen A. A Cholesterol Containing pH-Sensitive Bistable [2]Rotaxane. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500657] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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135
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Liang R, Wei M, Evans DG, Duan X. Inorganic nanomaterials for bioimaging, targeted drug delivery and therapeutics. Chem Commun (Camb) 2015; 50:14071-81. [PMID: 24955443 DOI: 10.1039/c4cc03118k] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Inorganic nanomaterials including gold nanoparticles, mesoporous silica nanoparticles, graphene, magnetic nanoparticles, quantum dots and layered double hydroxides have become one of the most active research fields in biochemistry, biotechnology and biomedicine. Benefiting from the facile synthesis/modification, intrinsically physicochemical properties and good biocompatibility, inorganic nanomaterials have shown great potential in bioimaging, targeted drug delivery and cancer therapies. This Feature Article summarizes recent progress on various inorganic nanocarriers, including the background, synthesis, modification, cytotoxicity, physicochemical properties as well as their applications in biomedicine.
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Affiliation(s)
- Ruizheng Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
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136
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Cao PF, Mangadlao JD, de Leon A, Su Z, Advincula RC. Catenated Poly(ε-caprolactone) and Poly(l-lactide) via Ring-Expansion Strategy. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00470] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Peng-Fei Cao
- Department of Macromolecular
Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Joey Dacula Mangadlao
- Department of Macromolecular
Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Al de Leon
- Department of Macromolecular
Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Zhe Su
- Department of Macromolecular
Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Rigoberto C. Advincula
- Department of Macromolecular
Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
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137
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Barkalina N, Jones C, Coward K. Nanomedicine and mammalian sperm: Lessons from the porcine model. Theriogenology 2015; 85:74-82. [PMID: 26116055 DOI: 10.1016/j.theriogenology.2015.05.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/05/2015] [Accepted: 05/20/2015] [Indexed: 10/23/2022]
Abstract
Biomedical nanotechnology allows us to engineer versatile nanosized platforms that are comparable in size to biological molecules and intracellular organelles. These platforms can be loaded with large amounts of biological cargo, administered systemically and act at a distance, target specific cell populations, undergo intracellular internalization via endogenous uptake mechanisms, and act as contrast agents or release cargo for therapeutic purposes. Over recent years, nanomaterials have been increasingly viewed as favorable candidates for intragamete delivery. Particularly in the case of sperm, nanomaterial-based approaches have been shown to improve the efficacy of existing techniques such as sperm-mediated gene transfer, loading sperm with exogenous proteins, and tagging sperm for subsequent sex- or function-based sorting. In this short review, we provide an outline of the current state of nanotechnology for biomedical applications in reproductive biology and present highlights from a series of our studies evaluating the use of specialized silica nanoparticles in boar sperm as a potential delivery vehicle into mammalian gametes. The encouraging data obtained already from the porcine model in our laboratory have formed the basis for ethical approval of similar experiments in human sperm, thereby bringing us a step closer toward the potential use of this novel technology in the clinical environment.
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Affiliation(s)
- Natalia Barkalina
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, UK.
| | - Celine Jones
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, UK
| | - Kevin Coward
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, UK
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138
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Singh RS, Kaur N, Kennedy JF. Pullulan and pullulan derivatives as promising biomolecules for drug and gene targeting. Carbohydr Polym 2015; 123:190-207. [DOI: 10.1016/j.carbpol.2015.01.032] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 01/03/2015] [Accepted: 01/14/2015] [Indexed: 12/22/2022]
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139
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Servant A, Qiu F, Mazza M, Kostarelos K, Nelson BJ. Controlled in vivo swimming of a swarm of bacteria-like microrobotic flagella. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:2981-8. [PMID: 25850420 DOI: 10.1002/adma.201404444] [Citation(s) in RCA: 252] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 02/28/2015] [Indexed: 05/22/2023]
Abstract
In vivo imaging and actuation of a swarm of magnetic helical microswimmers by external magnetic fields (less than 10 mT) in deep tissue is demonstrated for the first time. This constitutes a major milestone in the field, yielding a generation of micrometer-scale transporters with numerous applications in biomedicine including synthetic biology, assisted fertilization, and drug/gene delivery.
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Affiliation(s)
- Ania Servant
- Nanomedicine Lab, Faculty of Medical & Human Sciences and National Graphene Institute, University of Manchester, AV Hill Building, Manchester, M13 9PT, UK
- UCL Faculty of Life Sciences, University College London, Brunswick Square, London, WC1N 1AX, UK
| | - Famin Qiu
- Institute of Robotics and Intelligent Systems, ETH Zurich, Zurich, CH-8092, Switzerland
| | - Mariarosa Mazza
- Nanomedicine Lab, Faculty of Medical & Human Sciences and National Graphene Institute, University of Manchester, AV Hill Building, Manchester, M13 9PT, UK
- UCL Faculty of Life Sciences, University College London, Brunswick Square, London, WC1N 1AX, UK
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty of Medical & Human Sciences and National Graphene Institute, University of Manchester, AV Hill Building, Manchester, M13 9PT, UK
- UCL Faculty of Life Sciences, University College London, Brunswick Square, London, WC1N 1AX, UK
| | - Bradley J Nelson
- Institute of Robotics and Intelligent Systems, ETH Zurich, Zurich, CH-8092, Switzerland
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140
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Shadjou N, Hasanzadeh M. Bone tissue engineering using silica-based mesoporous nanobiomaterials:Recent progress. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:401-9. [PMID: 26117771 DOI: 10.1016/j.msec.2015.05.027] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 04/25/2015] [Accepted: 05/08/2015] [Indexed: 12/25/2022]
Abstract
Bone disorders are of significant concern due to increase in the median age of our population. It is in this context that tissue engineering has been emerging as a valid approach to the current therapies for bone regeneration/substitution. Tissue-engineered bone constructs have the potential to alleviate the demand arising from the shortage of suitable autograft and allograft materials for augmenting bone healing. Silica based mesostructured nanomaterials possessing pore sizes in the range 2-50 nm and surface reactive functionalities have elicited immense interest due to their exciting prospects in bone tissue engineering. In this review we describe application of silica-based mesoporous nanomaterials for bone tissue engineering. We summarize the preparation methods, the effect of mesopore templates and composition on the mesopore-structure characteristics, and different forms of these materials, including particles, fibers, spheres, scaffolds and composites. Also, the effect of structural and textural properties of mesoporous materials on development of new biomaterials for production of bone implants and bone cements was discussed. Also, application of different mesoporous materials on construction of manufacture 3-dimensional scaffolds for bone tissue engineering was discussed. It begins by giving the reader a brief background on tissue engineering, followed by a comprehensive description of all the relevant components of silica-based mesoporous biomaterials on bone tissue engineering, going from materials to scaffolds and from cells to tissue engineering strategies that will lead to "engineered" bone.
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Affiliation(s)
- Nasrin Shadjou
- Department of Nanochemistry, Nano Technology Research Center and Faculty of Chemistry, Urmia University, Urmia, Iran.
| | - Mohammad Hasanzadeh
- Department of Nanochemistry, Nano Technology Research Center and Faculty of Chemistry, Urmia University, Urmia, Iran; Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz 51664, Iran.
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141
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Balogh D, Aleman Garcia MA, Albada HB, Willner I. Programmed Synthesis by Stimuli-Responsive DNAzyme-Modified Mesoporous SiO2Nanoparticles. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501777] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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142
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Balogh D, Aleman Garcia MA, Albada HB, Willner I. Programmed Synthesis by Stimuli-Responsive DNAzyme-Modified Mesoporous SiO2 Nanoparticles. Angew Chem Int Ed Engl 2015; 54:11652-6. [PMID: 25959900 DOI: 10.1002/anie.201501777] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 04/02/2015] [Indexed: 12/31/2022]
Abstract
DNAzyme-capped mesoporous SiO2 nanoparticles (MP SiO2 NPs) are applied as stimuli-responsive containers for programmed synthesis. Three types of MP SiO2 NPs are prepared by loading the NPs with Cy3-DBCO (DBCO=dibenzocyclooctyl), Cy5-N3 , and Cy7-N3 , and capping the NP containers with the Mg(2+) , Zn(2+) , and histidine-dependent DNAzyme sequences, respectively. In the presence of Mg(2+) and Zn(2+) ions as triggers, the respective DNAzyme-capped NPs are unlocked, leading to the "click" reaction product Cy3-Cy5. In turn, in the presence of Mg(2+) ions and histidine as triggers the second set of DNAzyme-capped NPs is unlocked leading to the Cy3-Cy7 conjugated product. The unloading of the respective NPs and the time-dependent formation of the products are followed by fluorescence spectroscopy (FRET). A detailed kinetic model for the formation of the different products is formulated and it correlates nicely with the experimental results.
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Affiliation(s)
- Dora Balogh
- The Hebrew University of Jerusalem, Institute of Chemistry, Center for Nanoscience and Nanotechnology, Jerusalem, 91904 (Israel)
| | - Miguel Angel Aleman Garcia
- The Hebrew University of Jerusalem, Institute of Chemistry, Center for Nanoscience and Nanotechnology, Jerusalem, 91904 (Israel)
| | - H Bauke Albada
- The Hebrew University of Jerusalem, Institute of Chemistry, Center for Nanoscience and Nanotechnology, Jerusalem, 91904 (Israel).
| | - Itamar Willner
- The Hebrew University of Jerusalem, Institute of Chemistry, Center for Nanoscience and Nanotechnology, Jerusalem, 91904 (Israel).
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143
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Niedermayer S, Weiss V, Herrmann A, Schmidt A, Datz S, Müller K, Wagner E, Bein T, Bräuchle C. Multifunctional polymer-capped mesoporous silica nanoparticles for pH-responsive targeted drug delivery. NANOSCALE 2015; 7:7953-7964. [PMID: 25865957 DOI: 10.1039/c4nr07245f] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A highly stable modular platform, based on the sequential covalent attachment of different functionalities to the surface of core-shell mesoporous silica nanoparticles (MSNs) for targeted drug delivery is presented. A reversible pH-responsive cap system based on covalently attached poly(2-vinylpyridine) (PVP) was developed as drug release mechanism. Our platform offers (i) tuneable interactions and release kinetics with the cargo drug in the mesopores based on chemically orthogonal core-shell design, (ii) an extremely robust and reversible closure and release mechanism based on endosomal acidification of the covalently attached PVP polymer block, (iii) high colloidal stability due to a covalently coupled PEG shell, and (iv) the ability to covalently attach a wide variety of dyes, targeting ligands and other functionalities at the outer periphery of the PEG shell. The functionality of the system was demonstrated in several cell studies, showing pH-triggered release in the endosome, light-triggered endosomal escape with an on-board photosensitizer, and efficient folic acid-based cell targeting.
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Affiliation(s)
- Stefan Niedermayer
- Department of Chemistry, Nanosystems Initiative Munich (NIM) and Center for Nano Science (CeNS), University of Munich (LMU), Butenandtstr. 11 (E), 81377 Munich, Germany.
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144
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Fernando IR, Ferris DP, Frasconi M, Malin D, Strekalova E, Yilmaz MD, Ambrogio MW, Algaradah MM, Hong MP, Chen X, Nassar MS, Botros YY, Cryns VL, Stoddart JF. Esterase- and pH-responsive poly(β-amino ester)-capped mesoporous silica nanoparticles for drug delivery. NANOSCALE 2015; 7:7178-83. [PMID: 25820516 DOI: 10.1039/c4nr07443b] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Gating of mesoporous silica nanoparticles (MSNs) with the stimuli-responsive poly(β-amino ester) has been achieved. This hybrid nanocarrier releases doxorubicin (DOX) under acidic conditions or in the presence of porcine liver esterase. The DOX loaded poly(β-amino ester)-capped MSNs reduce cell viability when tested on MDA-MB-231 human breast cancer cells.
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Affiliation(s)
- Isurika R Fernando
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA.
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145
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Zhou S, Sha H, Ke X, Liu B, Wang X, Du X. Combination drug release of smart cyclodextrin-gated mesoporous silica nanovehicles. Chem Commun (Camb) 2015; 51:7203-7206. [PMID: 25811958 DOI: 10.1039/c5cc00585j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2024]
Abstract
An integrated γ-cyclodextrin-gated mesoporous silica delivery system via dual dynamic covalent bonds was constructed with dual drug loading for simultaneous and cascade release in targeted combination drug therapy.
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Affiliation(s)
- Shengwang Zhou
- Key Laboratory of Mesoscopic Chemistry (Ministry of Education), State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
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146
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Electrostatic Assembly/Disassembly of Nanoscaled Colloidosomes for Light-Triggered Cargo Release. Angew Chem Int Ed Engl 2015; 54:6804-8. [DOI: 10.1002/anie.201501615] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 03/19/2015] [Indexed: 11/07/2022]
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147
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Li S, Moosa BA, Croissant JG, Khashab NM. Electrostatic Assembly/Disassembly of Nanoscaled Colloidosomes for Light-Triggered Cargo Release. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501615] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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148
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Ferris DP, McGonigal PR, Witus LS, Kawaji T, Algaradah MM, Alnajadah AR, Nassar MS, Stoddart JF. Oxime ligation on the surface of mesoporous silica nanoparticles. Org Lett 2015; 17:2146-9. [PMID: 25894019 DOI: 10.1021/acs.orglett.5b00740] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A versatile surface-functionalization strategy applicable to mesoporous silica nanoparticles, which could potentially serve as drug delivery vehicles, is described that makes use of alkoxyamine tethers on the surface of the nanoparticles. A wide variety of carbonyl compounds can be attached readily to these tethers under the mild conditions of oxime ether formation, simply by incubating the chemically modified mesoporous silica nanoparticles with aldehydes or ketones in water.
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Affiliation(s)
- Daniel P Ferris
- †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Paul R McGonigal
- †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Leah S Witus
- †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Takatoshi Kawaji
- †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States.,‡Department of Materials Science, National Institute of Technology, Wakayama College, Nada, Gobo, Wakayama 644-0023, Japan
| | - Mohammed M Algaradah
- †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Ahmed R Alnajadah
- †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Majed S Nassar
- †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - J Fraser Stoddart
- †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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149
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Leung KCF, Lau KN, Wong WY. Revisiting the formation and tunable dissociation of a [2]pseudorotaxane formed by slippage approach. Int J Mol Sci 2015; 16:8254-65. [PMID: 25872145 PMCID: PMC4425079 DOI: 10.3390/ijms16048254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 04/09/2015] [Accepted: 04/10/2015] [Indexed: 11/16/2022] Open
Abstract
A new [2]pseudorotaxane DB24C8⊃1-H·PF6 with dibenzo[24]crown-8 (DB24C8) crown ether-dibenzylammonium (1-H·PF6) binding which was formed by slippage approach at different solvents and temperature, had been isolated and characterized by NMR spectroscopy and mass spectrometry. The [2]pseudorotaxane DB24C8⊃1-H·PF6 was stable at room temperature. The dissociation rate of [2]pseudorotaxane DB24C8⊃1-H·PF6 could be tuned by using different stimuli such as triethylamine (TEA)/diisopropylethylamine (DIPEA) and dimethyl sulfoxide (DMSO). In particular, the dissociation of [2]pseudorotaxane DB24C8⊃1-H·PF6 by an excess of TEA/DIPEA base mixture possessed a long and sustained, complete dissociation over 60 days. Other stimuli by DMSO possessed a relatively fast dissociation over 24 h.
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Affiliation(s)
- Ken Cham-Fai Leung
- Department of Chemistry and Institute of Creativity, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China.
- Institute of Molecular Functional Materials, University Grants Committee, Hong Kong, China.
| | - Kwun-Ngai Lau
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China.
| | - Wing-Yan Wong
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China.
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150
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Renfrew AK. Transition metal complexes with bioactive ligands: mechanisms for selective ligand release and applications for drug delivery. Metallomics 2015; 6:1324-35. [PMID: 24850462 DOI: 10.1039/c4mt00069b] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The unique properties of transition metal complexes, such as environment-responsive ligand exchange kinetics, diverse photochemical and photophysical properties, and the ability to form specific interactions with biomolecules, make them interesting platforms for selective drug delivery. This minireview will focus on recent examples of rationally designed complexes with bioactive ligands, exploring the different roles of the metal, and mechanisms of ligand release. Developments in the techniques used to study the mechanisms of action of metal-drug complexes will also be discussed, including X-ray protein crystallography, fluorescence lifetime imaging, and X-ray absorption spectroscopy.
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Affiliation(s)
- Anna K Renfrew
- The University of Sydney, Chemistry, School of Chemistry, Building F11, Sydney, New South Wales, Australia.
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