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Creemer C, Kilic H, Lee KS, Saracoglu N, Parquette JR. Light-controlled self-assembly of a dithienylethene bolaamphiphile in water. Dalton Trans 2020; 49:8846-8849. [DOI: 10.1039/d0dt02001j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In this work, we report the light-driven self-assembly of photochromic dithienylethene bolaamphiphiles in aqueous media. The open → closed transition that occurred upon irradiation was accompanied by the formation of 1D nanofibers.
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Affiliation(s)
- Cassidy Creemer
- Department of Chemistry and Biochemistry
- The Ohio State University
- Columbus
- USA
| | - Haydar Kilic
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey 25240
| | - Kwang Soo Lee
- Department of Chemistry and Biochemistry
- The Ohio State University
- Columbus
- USA
| | - Nurullah Saracoglu
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey 25240
| | - Jon R. Parquette
- Department of Chemistry and Biochemistry
- The Ohio State University
- Columbus
- USA
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Guan S, Deng Z, Huang T, Wen W, Zhao Y, Chen A. Light-Triggered Reversible Slimming of Azobenzene-Containing Wormlike Nanoparticles Synthesized by Polymerization-Induced Self-Assembly for Nanofiltration Switches. ACS Macro Lett 2019; 8:460-465. [PMID: 35651132 DOI: 10.1021/acsmacrolett.9b00146] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Photoresponsive wormlike block copolymer nanoparticles (NPs) have potential applications in versatile fields, but their preparation suffers from narrow worm phase region and tedious approaches. In this work, azobenzene-containing wormlike NPs based on poly(methylacrylic acid)-b-poly(4-((4-butylphenyl)diazenyl)phenyl methacrylate) are prepared via polymerization-induced self-assembly at high solids concentration in ethanol. The pure wormlike NPs occupy a remarkably broad region in the morphological phase diagram because of the rigid nature of the core-forming block. These wormlike NPs expand resulting from trans-cis transformation upon UV irradiation, and slim near to the original state via visible light irradiation. The diameter and its variation amplitude of worms increase with the chain length of core-forming block. Moreover, a nanofiltration switch for rhodamine B is assembled to illustrate one of its potential applications by remote trigger using light.
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Affiliation(s)
| | | | | | | | - Yongbin Zhao
- Shandong Oubo New Material Co. Ltd., Shandong 257088, People’s Republic of China
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Costa DF, Mendes LP, Torchilin VP. The effect of low- and high-penetration light on localized cancer therapy. Adv Drug Deliv Rev 2019; 138:105-116. [PMID: 30217518 DOI: 10.1016/j.addr.2018.09.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/30/2018] [Accepted: 09/07/2018] [Indexed: 12/21/2022]
Abstract
The design of a delivery system allowing targeted and controlled drug release has been considered one of the main strategies used to provide individualized cancer therapy, to improve survival statistics, and to enhance quality-of-life. External stimuli including low- and high-penetration light have been shown to have the ability to turn drug delivery on and off in a non-invasive remotely-controlled fashion. The success of this approach has been closely related to the development of a variety of drug delivery systems - from photosensitive liposomes to gold nanocages - and relies on multiple mechanisms of drug release activation. In this review, we make reference to the two extremes of the light spectrum and their potential as triggers for the delivery of antitumor drugs, along with the most recent achievements in preclinical trials and the challenges to an efficient translation of this technology to the clinical setting.
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Wei R, Ma J, Zhang H, He Y. Synthesis, characterization, and photo-responsive properties of Y-shaped amphiphilic azo triblock copolymer. J Appl Polym Sci 2016. [DOI: 10.1002/app.43695] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Renbo Wei
- Research Branch of Advanced Functional Materials, School of Microelectronics and Solid-State Electronics, High Temperature Resistant Polymer and Composites, Key Laboratory of Sichuan Province; University of Electronic Science and Technology of China; Chengdu 610054 China
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 China
| | - Jinyi Ma
- Sichuan Institute of Piezoelectric and Acoustooptic Technology; Chongqing 400060 China
| | - Hongxing Zhang
- Research Branch of Advanced Functional Materials, School of Microelectronics and Solid-State Electronics, High Temperature Resistant Polymer and Composites, Key Laboratory of Sichuan Province; University of Electronic Science and Technology of China; Chengdu 610054 China
| | - Yaning He
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 China
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6
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Wang A, Shi W, Huang J, Yan Y. Adaptive soft molecular self-assemblies. SOFT MATTER 2016; 12:337-357. [PMID: 26509717 DOI: 10.1039/c5sm02397a] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Adaptive molecular self-assemblies provide possibility of constructing smart and functional materials in a non-covalent bottom-up manner. Exploiting the intrinsic properties of responsiveness of non-covalent interactions, a great number of fancy self-assemblies have been achieved. In this review, we try to highlight the recent advances in this field. The following contents are focused: (1) environmental adaptiveness, including smart self-assemblies adaptive to pH, temperature, pressure, and moisture; (2) special chemical adaptiveness, including nanostructures adaptive to important chemicals, such as enzymes, CO2, metal ions, redox agents, explosives, biomolecules; (3) field adaptiveness, including self-assembled materials that are capable of adapting to external fields such as magnetic field, electric field, light irradiation, and shear forces.
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Affiliation(s)
- Andong Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Wenyue Shi
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Jianbin Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Yun Yan
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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Sinawang G, Wang J, Wu B, Wang X, He Y. Photoswitchable aggregation-induced emission polymer containing dithienylethene and tetraphenylethene moieties. RSC Adv 2016. [DOI: 10.1039/c5ra27014f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Upon irradiation with UV and visible light, the fluorescence of the prepared AIE polymer could be photoswitched.
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Affiliation(s)
- Garry Sinawang
- Department of Chemical Engineering
- Laboratory for Advanced Materials
- Tsinghua University
- Beijing
- P. R. China
| | - Jilei Wang
- Department of Chemical Engineering
- Laboratory for Advanced Materials
- Tsinghua University
- Beijing
- P. R. China
| | - Bing Wu
- Department of Chemical Engineering
- Laboratory for Advanced Materials
- Tsinghua University
- Beijing
- P. R. China
| | - Xiaogong Wang
- Department of Chemical Engineering
- Laboratory for Advanced Materials
- Tsinghua University
- Beijing
- P. R. China
| | - Yaning He
- Department of Chemical Engineering
- Laboratory for Advanced Materials
- Tsinghua University
- Beijing
- P. R. China
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Li D, Jiang J, Huang Q, Wang G, Zhang M, Du J. Light-triggered “on–off” switching of fluorescence based on a naphthopyran-containing compound polymer micelle. Polym Chem 2016. [DOI: 10.1039/c6py00490c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a compound micelle based on a naphthopyran-containing copolymer and a fluorophore-containing copolymer for light-triggered “on–off” switching of fluorescence.
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Affiliation(s)
- Dehua Li
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P R China
| | - Jinhui Jiang
- Department of Polymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 210804
- P R China
| | - Qiutong Huang
- Department of Polymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 210804
- P R China
| | - Guang Wang
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P R China
| | - Meiduo Zhang
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P R China
| | - Jianzhong Du
- Department of Polymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 210804
- P R China
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Kalva N, Basutkar NB, Ambade AV. Photoresponsive assemblies of linear-dendritic copolymers containing azobenzene in the dendron interior: the effect of the dendron structure on dye encapsulation and release. RSC Adv 2016. [DOI: 10.1039/c6ra02250b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Linear-dendritic copolymers show differential dye encapsulation and photoinduced dye release based on the number and positions of azobenzenes in the dendritic backbone as well as substituents on the dendron periphery.
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Affiliation(s)
- Nagendra Kalva
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research
| | - Nitin B. Basutkar
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Ashootosh V. Ambade
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research
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Cao PF, Mangadlao JD, Advincula RC. Stimuli-Responsive Polymers and their Potential Applications in Oil-Gas Industry. POLYM REV 2015. [DOI: 10.1080/15583724.2015.1040553] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wang J, Wang S, Zhou Y, Wang X, He Y. Fast Photoinduced Large Deformation of Colloidal Spheres from a Novel 4-arm Azobenzene Compound. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16889-16895. [PMID: 26168368 DOI: 10.1021/acsami.5b05651] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel 4-arm shaped amphiphilic azobenzene compound was synthesized. The tetraphenylethylene (TPE) core precursor was prepared and further modified by azo coupling reaction at the four peripheral groups. Colloidal spheres could be directly prepared by self-assembly of the prepared amphiphilic azobenzene compound in selective solvents (THF/H2O), which were characterized by using transmission electron microscopy. The colloid diameters could be controlled by adjusting the initial compound concentration and water-adding rate in the preparation processes. By irradiation with visible linearly polarized LED light (450 nm), fast photoinduced deformation of the colloidal spheres along the polarization direction was observed. A very large deformation degree (l/d > 4) could be easily obtained.
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Affiliation(s)
- Jilei Wang
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
| | - Shihang Wang
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
| | - Yuqi Zhou
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
| | - Xiaogong Wang
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
| | - Yaning He
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
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Barhoumi A, Liu Q, Kohane DS. Ultraviolet light-mediated drug delivery: Principles, applications, and challenges. J Control Release 2015. [PMID: 26208426 DOI: 10.1016/j.jconrel.2015.07.018] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
UV light has been extensively employed in drug delivery because of its versatility, ease of manipulation, and ability to induce chemical changes on the therapeutic carrier. Here we review the mechanisms by which UV light affects drug delivery systems. We will present the challenges facing UV-induced drug delivery and some of the proposed solutions.
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Affiliation(s)
- Aoune Barhoumi
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; David H. Koch Institutes for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Qian Liu
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; David H. Koch Institutes for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Daniel S Kohane
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; David H. Koch Institutes for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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Wei RB, Wang XG, He YN. Synthesis, self-assembly and photo-responsive behavior of AB2 shaped amphiphilic azo block copolymer. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Jin Y, Xia Y, Wang S, Yan L, Zhou Y, Fan J, Song B. Concentration-dependent and light-responsive self-assembly of bolaamphiphiles bearing α-cyanostilbene based photochromophore. SOFT MATTER 2015; 11:798-805. [PMID: 25503396 DOI: 10.1039/c4sm02392g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this paper, a new bolaamphiphile bearing 1-cyano-1,2-bis(phenyl)ethene (CNBE) has been synthesized. The self-assembly of this molecule in aqueous solution is concentration-dependent. Two distinct morphologies, monomolecular layered lamellas and helical nanofibres have been obtained with the as-prepared molecular configuration. Note worthily, the helical nanofibres provide an experimental evidence for the pure twisted structure in the liquid crystals, which is theoretically proposed by De Gennes. Due to the photoisomerization of CNBE, the self-assembled nanostructures undergo morphological changes upon irradiation. Although various nanostructures were observed in the solution-state, only nanofibres were obtained after the solution was cast on a substrate, which was attributed to a strong dewetting effect. This work illustrates concentration-dependent and light-responsive self-assembly and provides a novel avenue for fabricating smart soft materials.
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Affiliation(s)
- Yingzhi Jin
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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15
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Wang J, Zhou Y, Wang X, He Y. Synthesis of Y-shaped amphiphilic copolymers by macromolecular azo coupling reaction. RSC Adv 2015. [DOI: 10.1039/c4ra14926b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synthesis of well-defined AB2 Y-shaped amphiphilic block copolymers by macromolecular azo coupling reaction is reported.
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Affiliation(s)
- Jilei Wang
- Department of Chemical Engineering
- Key Laboratory of Advanced Materials (MOE)
- Tsinghua University
- Beijing
- P. R. China
| | - Yuqi Zhou
- Department of Chemical Engineering
- Key Laboratory of Advanced Materials (MOE)
- Tsinghua University
- Beijing
- P. R. China
| | - Xiaogong Wang
- Department of Chemical Engineering
- Key Laboratory of Advanced Materials (MOE)
- Tsinghua University
- Beijing
- P. R. China
| | - Yaning He
- Department of Chemical Engineering
- Key Laboratory of Advanced Materials (MOE)
- Tsinghua University
- Beijing
- P. R. China
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Le Cerf D. [Stimuli-sensitive polymer systems]. ANNALES PHARMACEUTIQUES FRANÇAISES 2014; 72:389-99. [PMID: 25438649 DOI: 10.1016/j.pharma.2014.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/03/2014] [Accepted: 04/07/2014] [Indexed: 01/24/2023]
Abstract
The polymers can be found in different forms in solution (particles, capsules, pseudo-micelles, hydrogels…) or on surface with important prospects in many field applications. These polymer systems are particularly very good candidates to entrap, transport and deliver an active substance in biomedical applications however with many limitations on control of release of a given target. The stimuli-sensitive polymers, also called smart or environmentally sensitive polymers, present physical or chemical changes under the action of small variations of an external stimulus. This signal acts as a stimulus which causes the change of conformation and/or solvation of the macromolecular chains by modifying their various interactions. The stimuli are classified into two broad categories: physical or external stimuli: temperature, mechanical stress, light, magnetic and electric fields; chemical and biochemical or internal stimuli: pH, ionic strength, chemical molecule (glucose, redox) or biochemical (enzymes, antigens…). The use of stimuli-sensitive pathway is widely used in the literature to enhance or trigger the release of an active compound. In this paper, we present the different stimuli addressing the theoretical aspects, polymers corresponding to these stimuli. Some examples illustrate these systems for the controlled release of active compounds.
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Affiliation(s)
- D Le Cerf
- Normandie université, France; Laboratoire polymères biopolymères surfaces, université de Rouen, 76821 Mont Saint-Aignan, France; CNRS UMR 6270 & FR3038, 76821 Mont Saint-Aignan, France.
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Jhaveri AM, Torchilin VP. Multifunctional polymeric micelles for delivery of drugs and siRNA. Front Pharmacol 2014; 5:77. [PMID: 24795633 PMCID: PMC4007015 DOI: 10.3389/fphar.2014.00077] [Citation(s) in RCA: 257] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 03/31/2014] [Indexed: 12/18/2022] Open
Abstract
Polymeric micelles, self-assembling nano-constructs of amphiphilic copolymers with a core-shell structure have been used as versatile carriers for delivery of drugs as well as nucleic acids. They have gained immense popularity owing to a host of favorable properties including their capacity to effectively solubilize a variety of poorly soluble pharmaceutical agents, biocompatibility, longevity, high stability in vitro and in vivo and the ability to accumulate in pathological areas with compromised vasculature. Moreover, additional functions can be imparted to these micelles by engineering their surface with various ligands and cell-penetrating moieties to allow for specific targeting and intracellular accumulation, respectively, to load them with contrast agents to confer imaging capabilities, and incorporating stimuli-sensitive groups that allow drug release in response to small changes in the environment. Recently, there has been an increasing trend toward designing polymeric micelles which integrate a number of the above functions into a single carrier to give rise to “smart,” multifunctional polymeric micelles. Such multifunctional micelles can be envisaged as key to improving the efficacy of current treatments which have seen a steady increase not only in hydrophobic small molecules, but also in biologics including therapeutic genes, antibodies and small interfering RNA (siRNA). The purpose of this review is to highlight recent advances in the development of multifunctional polymeric micelles specifically for delivery of drugs and siRNA. In spite of the tremendous potential of siRNA, its translation into clinics has been a significant challenge because of physiological barriers to its effective delivery and the lack of safe, effective and clinically suitable vehicles. To that end, we also discuss the potential and suitability of multifunctional polymeric micelles, including lipid-based micelles, as promising vehicles for both siRNA and drugs.
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Affiliation(s)
- Aditi M Jhaveri
- Department of Pharmaceutical Sciences, Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University Boston, MA, USA
| | - Vladimir P Torchilin
- Department of Pharmaceutical Sciences, Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University Boston, MA, USA
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van Herpt JT, Areephong J, Stuart MCA, Browne WR, Feringa BL. Light-controlled formation of vesicles and supramolecular organogels by a cholesterol-bearing amphiphilic molecular switch. Chemistry 2014; 20:1737-42. [PMID: 24436282 DOI: 10.1002/chem.201302902] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 11/11/2013] [Indexed: 11/11/2022]
Abstract
A new responsive material composed of an amphiphilic light-switchable dithienylethene unit functionalized with a hydrophobic cholesterol unit and a hydrophilic poly(ethylene glycol)-modified pyridinium group has been designed. This unique single-molecule system shows responsive light-switchable self-assembly in both water and organic solvents. Light-triggered reversible vesicle formation in aqueous solutions is reported. The molecule shows a different behavior in apolar aromatic solvents, in which light-controlled formation of organogel fibers is observed. The light-triggered aggregation behavior of this molecule demonstrates that control of a supramolecular structure with light can be achieved in both aqueous and organic media and that this ability can be present in a single molecule. This opens the way toward the effective development of new strategies in soft nanotechnology for applications in controlled chemical release systems.
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Affiliation(s)
- Jochem T van Herpt
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen (NL)
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Iyer AK, Singh A, Ganta S, Amiji MM. Role of integrated cancer nanomedicine in overcoming drug resistance. Adv Drug Deliv Rev 2013; 65:1784-802. [PMID: 23880506 DOI: 10.1016/j.addr.2013.07.012] [Citation(s) in RCA: 233] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 06/19/2013] [Accepted: 07/15/2013] [Indexed: 12/18/2022]
Abstract
Cancer remains a major killer of mankind. Failure of conventional chemotherapy has resulted in recurrence and development of virulent multi drug resistant (MDR) phenotypes adding to the complexity and diversity of this deadly disease. Apart from displaying classical physiological abnormalities and aberrant blood flow behavior, MDR cancers exhibit several distinctive features such as higher apoptotic threshold, aerobic glycolysis, regions of hypoxia, and elevated activity of drug-efflux transporters. MDR transporters play a pivotal role in protecting the cancer stem cells (CSCs) from chemotherapy. It is speculated that CSCs are instrumental in reviving tumors after the chemo and radiotherapy. In this regard, multifunctional nanoparticles that can integrate various key components such as drugs, genes, imaging agents and targeting ligands using unique delivery platforms would be more efficient in treating MDR cancers. This review presents some of the important principles involved in development of MDR and novel methods of treating cancers using multifunctional-targeted nanoparticles. Illustrative examples of nanoparticles engineered for drug/gene combination delivery and stimuli responsive nanoparticle systems for cancer therapy are also discussed.
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Tong R, Kohane DS. Shedding light on nanomedicine. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2012; 4:638-62. [PMID: 22887840 PMCID: PMC3474862 DOI: 10.1002/wnan.1188] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Light is an electromagnetic radiation that can convert its energy into different forms (e.g., heat, chemical energy, and acoustic waves). This property has been exploited in phototherapy (e.g., photothermal therapy and photodynamic therapy (PDT)) and optical imaging (e.g., fluorescence imaging) for therapeutic and diagnostic purposes. Light-controlled therapies can provide minimally- or noninvasive spatiotemporal control as well as deep tissue penetration. Nanotechnology provides numerous advantages, including selective targeting of tissues, prolongation of therapeutic effect, protection of active payloads, and improved therapeutic indices. This review explores the advances that nanotechnology can bring to light-based therapies and diagnostics, and vice versa, including photo-triggered systems, nanoparticles containing photoactive molecules, and nanoparticles that are themselves photoactive. Limitations of light-based therapies such as photic injury and phototoxicity are discussed.
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Affiliation(s)
- Rong Tong
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
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Affiliation(s)
- Yue Zhao
- Département de chimie, Université de Sherbrooke, Sherbrooke, Québec,
Canada J1K 2R1
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Han D, Tong X, Zhao Y. Block copolymer micelles with a dual-stimuli-responsive core for fast or slow degradation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:2327-2331. [PMID: 22263885 DOI: 10.1021/la204930n] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report the design and demonstration of a dual-stimuli-responsive block copolymer (BCP) micelle with increased complexity and control. We have synthesized and studied a new amphiphilic ABA-type triblock copolymer whose hydrophobic middle block contains two types of stimuli-sensitive functionalities regularly and repeatedly positioned in the main chain. Using a two-step click chemistry approach, disulfide and o-nitrobenzyle methyl ester groups are inserted into the main chain, which react to reducing agents and light, respectively. With the end blocks being poly(ethylene oxide), micelles formed by this BCP possess a core that can be disintegrated either rapidly via photocleavage of o-nitrobenzyl methyl esters or slowly through cleavage of disulfide groups by a reducing agent in the micellar solution. This feature makes possible either burst release of an encapsulated hydrophobic species from disintegrated micelles by UV light, or slow release by the action of a reducing agent, or release with combined fast-slow rate profiles using the two stimuli.
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Affiliation(s)
- Dehui Han
- Département de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
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Patra A, Métivier R, Brisset F, Nakatani K. Photochromic one-dimensional nanostructures based on dithienylethene: fabrication by light-induced precipitation and reversible transformation in the nanoparticle state. Chem Commun (Camb) 2012; 48:2489-91. [DOI: 10.1039/c1cc14561d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yan B, Boyer JC, Branda NR, Zhao Y. Near-Infrared Light-Triggered Dissociation of Block Copolymer Micelles Using Upconverting Nanoparticles. J Am Chem Soc 2011; 133:19714-7. [DOI: 10.1021/ja209793b] [Citation(s) in RCA: 401] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Bin Yan
- Département de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K2R1
| | - John-Christopher Boyer
- 4D LABS, Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6
| | - Neil R. Branda
- 4D LABS, Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6
| | - Yue Zhao
- Département de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K2R1
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