1
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Romanovska A, Schmidt M, Brandt V, Tophoven J, Tiller JC. Controlling the function of bioactive worm micelles by enzyme-cleavable non-covalent inter-assembly cross-linking. J Control Release 2024; 368:15-23. [PMID: 38346504 DOI: 10.1016/j.jconrel.2024.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Abstract
Drugs that form self-assembled supramolecular structures to be most-active is a promising way of creating new highly specific and active pharmaceuticals. Controlling the activity of bioactive supramolecular structures such as drug-loaded micelles is possible by both core/shell and inter-assembly cross-linking. However, if the flexibility of the assembly is mandatory for the activity cross-linking is not feasible. Thus, such structures cannot be manipulated in their activity. The present study demonstrates a novel concept to control the activity of not drug-releasing, non-cross-linked bioactive superstructures. This is achieved by formation of nanostructured nanoparticles derived by non-covalent inter-assembly cross-linking of the superstructures. This is shown on the example of amphiphilic diblock-copolymers conjugated with the antibiotic ciprofloxacin (CIP). These polymer-antibiotic conjugates form worm micelles, which greatly activate the conjugated antibiotic without releasing it. Non-covalent inter-assembly cross-linking of these CIP-worm-micelles with amphiphilic triblock copolymers terminated with lipase-cleavable esters leads to nanostructured nanoparticles that resemble cross-linked worm micelles and show an up to 135-fold lower activity than the free worm micelles. The activity of the worm-micelles can be fully recovered by cleaving the end groups of the polymeric cross-linker with lipase.
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Affiliation(s)
- Alina Romanovska
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Martin Schmidt
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Volker Brandt
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Jonas Tophoven
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Joerg C Tiller
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany.
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2
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Dou J, Yu S, Reddy O, Zhang Y. Novel ABA block copolymers: preparation, temperature sensitivity, and drug release. RSC Adv 2022; 13:129-139. [PMID: 36605663 PMCID: PMC9764341 DOI: 10.1039/d2ra05831f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 12/04/2022] [Indexed: 12/24/2022] Open
Abstract
A new PEGylated macroiniferter was prepared based on the polycondensation reaction of polyethylene oxide (PEO), methylene diphenyl diisocyanate (MDI), and 1,1,2,2-tetraphenyl-1,2-ethanediol (TPED). The macroiniferter consists of PEO end groups and readily reacts with acrylamides (such as N-isopropylacrylamide, NIPAM) and forms ABA block copolymers (PEO-PNIPAM-PEO). This approach of making amphiphilic ABA block copolymers is robust, versatile, and useful, particularly for the development of polymers for biomedical applications. The resulting amphiphilic PEO-PNIPAM-PEO block copolymers are also temperature sensitive, and their phase transition temperatures are close to human body temperature and therefore they have been applied as drug carriers for cancer treatment. Two PEO-PNIPAM-PEO polymers with different molecular weights were prepared and selected to make temperature-sensitive micelles. As a result of the biocompatibility of these micelles, cell viability tests proved that these micelles have low toxicity toward cancer cells. The resultant polymer micelles were then used as drug carriers to deliver the hydrophobic anticancer drug doxorubicin (DOX), and the results showed that they exhibit significantly higher cumulative drug release efficiency at higher temperatures. Moreover, after loading DOX into the micelles, cellular uptake experiments showed easy uptake and cell viability tests showed that DOX-loaded micelles possess a better therapeutic effect than free DOX at the same dose.
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Affiliation(s)
- Jie Dou
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University HeightsNewark 07102NJUSA
| | - Shupei Yu
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University HeightsNewark 07102NJUSA
| | - Ojasvita Reddy
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University HeightsNewark 07102NJUSA
| | - Yuanwei Zhang
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University HeightsNewark 07102NJUSA
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3
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Recent Advances in Stimuli-Responsive Doxorubicin Delivery Systems for Liver Cancer Therapy. Polymers (Basel) 2022; 14:polym14235249. [PMID: 36501642 PMCID: PMC9738136 DOI: 10.3390/polym14235249] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/21/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
Doxorubicin (DOX) is one of the most commonly used drugs in liver cancer. Unfortunately, the traditional chemotherapy with DOX presents many limitations, such as a systematic release of DOX, affecting both tumor tissue and healthy tissue, leading to the apparition of many side effects, multidrug resistance (MDR), and poor water solubility. Furthermore, drug delivery systems' responsiveness has been intensively studied according to the influence of different internal and external stimuli on the efficiency of therapeutic drugs. In this review, we discuss both internal stimuli-responsive drug-delivery systems, such as redox, pH and temperature variation, and external stimuli-responsive drug-delivery systems, such as the application of magnetic, photo-thermal, and electrical stimuli, for the controlled release of Doxorubicin in liver cancer therapy, along with the future perspectives of these smart delivery systems in liver cancer therapy.
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4
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Sharko A, Livitz D, De Piccoli S, Bishop KJM, Hermans TM. Insights into Chemically Fueled Supramolecular Polymers. Chem Rev 2022; 122:11759-11777. [PMID: 35674495 DOI: 10.1021/acs.chemrev.1c00958] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Supramolecular polymerization can be controlled in space and time by chemical fuels. A nonassembled monomer is activated by the fuel and subsequently self-assembles into a polymer. Deactivation of the molecule either in solution or inside the polymer leads to disassembly. Whereas biology has already mastered this approach, fully artificial examples have only appeared in the past decade. Here, we map the available literature examples into four distinct regimes depending on their activation/deactivation rates and the equivalents of deactivating fuel. We present increasingly complex mathematical models, first considering only the chemical activation/deactivation rates (i.e., transient activation) and later including the full details of the isodesmic or cooperative supramolecular processes (i.e., transient self-assembly). We finish by showing that sustained oscillations are possible in chemically fueled cooperative supramolecular polymerization and provide mechanistic insights. We hope our models encourage the quantification of activation, deactivation, assembly, and disassembly kinetics in future studies.
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Affiliation(s)
| | - Dimitri Livitz
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | | | - Kyle J M Bishop
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Thomas M Hermans
- University of Strasbourg & CNRS, UMR7140, Strasbourg 67000, France
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5
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Banerjee S, Bardhan S, Senapati S. Structural Transitions at the Water/Oil Interface by Ionic-Liquid-like Surfactant, 1-Butyl-3-methylimidazolium Dioctyl Sulfosuccinate: Measurements and Mechanism. J Phys Chem B 2022; 126:2014-2026. [PMID: 35213168 DOI: 10.1021/acs.jpcb.1c08602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Reverse micelle (RM) aggregates have a wide range of applications in various areas of science and technology. A continuous demand exists to replace interfacial surfactant molecules with various nonconventional amphiphiles. Ionic liquid (IL)-like surfactants (IL-surf's) constitute a class of such molecules that are being researched extensively. Here, we have formulated several water/IL-surf/oil microemulsions by optimizing the core droplet size with varying oil phases. The best composition of water/[BMIM][AOT]/IPM ([BMIM][AOT]: 1-butyl-3-methylimidazolium dioctyl sulfosuccinate; IPM: isopropyl myristate) was then analyzed in detail through experimental and computer simulations. Our results from DLS measurements suggest a structural transition from spherical aggregates in the parent water/[Na][AOT]/IPM solution to cylindrical droplets in the IL-surf-based system. The Raman and ATR-FTIR spectral analysis suggest a variation in the microstructure of the water/oil interface due to the differential interaction of the counterions with AOT headgroups and water. Molecular dynamics simulation results provided the direct image of the interface showing a structured versus uneven water/oil interface in [Na][AOT] versus [BMIM][AOT] RMs, where the larger [BMIM] cations weakly bind with the AOT headgroups due to their low charge density. Finally, an application of this IL-surf-based formulation was tested by carrying out a Heck cross-coupling reaction that showed significantly higher yield under milder reaction conditions.
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Affiliation(s)
- Shankha Banerjee
- Department of Biotechnology and BJM School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Soumik Bardhan
- Department of Biotechnology and BJM School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Sanjib Senapati
- Department of Biotechnology and BJM School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
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6
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Mishra A, Dhiman S, George SJ. ATP‐Driven Synthetic Supramolecular Assemblies: From ATP as a Template to Fuel. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006614] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ananya Mishra
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Shikha Dhiman
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Subi J. George
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
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7
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Mishra A, Dhiman S, George SJ. ATP‐Driven Synthetic Supramolecular Assemblies: From ATP as a Template to Fuel. Angew Chem Int Ed Engl 2020; 60:2740-2756. [DOI: 10.1002/anie.202006614] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/09/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Ananya Mishra
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Shikha Dhiman
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Subi J. George
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
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8
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9
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Li K, Lin Y, Lu C. Aggregation-Induced Emission for Visualization in Materials Science. Chem Asian J 2019; 14:715-729. [PMID: 30629327 DOI: 10.1002/asia.201801760] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/05/2019] [Indexed: 12/31/2022]
Abstract
Fluorescent imaging techniques have attracted much attention as a powerful tool to realize the visualization of structural and morphological evolution of various materials. However, the traditional fluorescent dyes usually suffered from aggregation-caused quenching, which severely limits the visualization results. In contrast, aggregation-induced emission (AIE) molecules with high quantum yields in the condensed state showed great opportunities for imaging techniques. In this feature article, recent progresses in visualization with AIE molecules are discussed. Assembly processes including crystallization, gelation process, and dissipative assembly have been observed. To better study information obtained regarding the processes, visualization during reactions, phase transitions, and molecular motions are successfully presented. Based on these successes, AIE molecules were further applied for phase recognition, macro-dispersion evaluation, and damage detection. Finally, we also present the outlook and perspectives, in our opinion, for the development of visualization by AIE molecules.
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Affiliation(s)
- Kaitao Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 79, 100029, Beijing, China
| | - Yanjun Lin
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 79, 100029, Beijing, China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 79, 100029, Beijing, China
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10
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Wang Y, Xing P, An W, Ma M, Yang M, Luan T, Tang R, Wang B, Hao A. pH-Responsive Dipeptide-Based Dynamic Covalent Chemistry Systems Whose Products and Self-Assemblies Depend on the Structure of Isomeric Aromatic Dialdehydes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13725-13734. [PMID: 30354164 DOI: 10.1021/acs.langmuir.7b04397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Facile control over preparation of organic building blocks and self-assembled aggregations to construct the desired materials remains challenges. This article reports selective dynamic covalent bonds formation and the corresponding self-assembly behaviors by using a dipeptide, glycylglycine (GlyGly), reacting with isomeric aromatic dialdehydes o-phthalaldehyde (OPA), p-phthalaldehyde (PPA), and m-phthalaldehyde (MPA) to demonstrate diversified aggregation forms caused by structure topology variations. Under alkaline condition, the aldehyde groups of phthalaldehydes can be connected with the amino groups of GlyGly by imine bonds as the dynamic chemical bonds. Owing to the fact that formation and dissociation of the imine bonds were reversibly pH-responsive, the reactions and aggregates assembled by their products were also reversibly controlled by changing pH. Three products, including two-armed product (OPGG, in which two GlyGly molecules were connected with one OPA molecule), single-armed product (PPG, in which only one GlyGly molecule was connected with a PPA molecule), and a mixture product (MPGG and MPG), as well as their different self-assembly behaviors, were obtained from OPA/GlyGly, PPA/GlyGly, and MPA/GlyGly systems, respectively, at the same condition of pH 8.6 in 90% methanol aqueous solution. However, for OPA/GlyGly system, another different type of product with benzopyrrole structure (OPG) was obtained by nucleophilic substitution via mixing OPA and GlyGly in water, which generated organic nanoparticles. Based on the results above, we conjectured the differences in dynamic covalent bond formation and supramolecular assembly clearly were influenced by the structure topologies of phthalaldehydes (OPA, PPA, and MPA). The experimental phenomenon verified the hypothesis as well, which may guide us to realize facile construction of selective reaction products and intelligent reversibly responsive materials with diverse morphologies and functions.
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Affiliation(s)
- Yajie Wang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
| | - Pengyao Xing
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 , Singapore
| | - Wei An
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
| | - Mingfang Ma
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
| | - Minmin Yang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
| | - Tianxiang Luan
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
| | - Ruipeng Tang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
| | - Bo Wang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
| | - Aiyou Hao
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
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11
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Zhuang J, Seçinti H, Zhao B, Thayumanavan S. Propagation of Enzyme‐Induced Surface Events inside Polymer Nanoassemblies for a Fast and Tunable Response. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiaming Zhuang
- Department of Chemistry University of Massachusetts Amherst Amherst MA 01003 USA
| | - Hatice Seçinti
- Department of Chemistry University of Massachusetts Amherst Amherst MA 01003 USA
| | - Bo Zhao
- Department of Chemistry University of Massachusetts Amherst Amherst MA 01003 USA
| | - S. Thayumanavan
- Department of Chemistry University of Massachusetts Amherst Amherst MA 01003 USA
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12
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Zhuang J, Seçinti H, Zhao B, Thayumanavan S. Propagation of Enzyme‐Induced Surface Events inside Polymer Nanoassemblies for a Fast and Tunable Response. Angew Chem Int Ed Engl 2018; 57:7111-7115. [DOI: 10.1002/anie.201803029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Jiaming Zhuang
- Department of Chemistry University of Massachusetts Amherst Amherst MA 01003 USA
| | - Hatice Seçinti
- Department of Chemistry University of Massachusetts Amherst Amherst MA 01003 USA
| | - Bo Zhao
- Department of Chemistry University of Massachusetts Amherst Amherst MA 01003 USA
| | - S. Thayumanavan
- Department of Chemistry University of Massachusetts Amherst Amherst MA 01003 USA
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13
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Han X, Chen Y, Sun H, Liu Y. Enzyme‐Responsive Supramolecular Nanoparticles Based on Carboxyl‐Modified Cyclodextrins for Dual Substrate Loading. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800076] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Xu Han
- College of ChemistryState Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 P. R. China
| | - Yong Chen
- College of ChemistryState Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 P. R. China
| | - He‐Lue Sun
- College of ChemistryState Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 P. R. China
| | - Yu Liu
- College of ChemistryState Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 P. R. China
- Collaborative Innovation Center of Chemical Science and EngineeringNankai University Tianjin 300071 P. R. China
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14
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Liu P, Li Z, Shi B, Liu J, Zhu H, Huang F. Formation of Linear Side-Chain Polypseudorotaxane with Supramolecular Polymer Backbone through Neutral Halogen Bonds and Pillar[5]arene-Based Host-Guest Interactions. Chemistry 2018; 24:4264-4267. [DOI: 10.1002/chem.201800312] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Peiren Liu
- State Key Laboratory of Chemical Engineering; Center for Chemistry of High-Performance & Novel Materials; Department of Chemistry; Zhejiang University; Hangzhou 310027 P. R. China
| | - Zhengtao Li
- State Key Laboratory of Chemical Engineering; Center for Chemistry of High-Performance & Novel Materials; Department of Chemistry; Zhejiang University; Hangzhou 310027 P. R. China
| | - Bingbing Shi
- State Key Laboratory of Chemical Engineering; Center for Chemistry of High-Performance & Novel Materials; Department of Chemistry; Zhejiang University; Hangzhou 310027 P. R. China
| | - Jiyong Liu
- State Key Laboratory of Chemical Engineering; Center for Chemistry of High-Performance & Novel Materials; Department of Chemistry; Zhejiang University; Hangzhou 310027 P. R. China
| | - Huangtianzhi Zhu
- State Key Laboratory of Chemical Engineering; Center for Chemistry of High-Performance & Novel Materials; Department of Chemistry; Zhejiang University; Hangzhou 310027 P. R. China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering; Center for Chemistry of High-Performance & Novel Materials; Department of Chemistry; Zhejiang University; Hangzhou 310027 P. R. China
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15
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Zhan J, Cai Y, He S, Wang L, Yang Z. Tandem Molecular Self-Assembly in Liver Cancer Cells. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201710237] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jie Zhan
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Nankai University; Tianjin 300071 China
- College of Life Sciences; Key Laboratory of Bioactive Materials; Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 China
| | - Yanbin Cai
- College of Life Sciences; Key Laboratory of Bioactive Materials; Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 China
| | - Shuangshuang He
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Nankai University; Tianjin 300071 China
| | - Ling Wang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Nankai University; Tianjin 300071 China
| | - Zhimou Yang
- College of Life Sciences; Key Laboratory of Bioactive Materials; Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 China
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16
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Zhan J, Cai Y, He S, Wang L, Yang Z. Tandem Molecular Self-Assembly in Liver Cancer Cells. Angew Chem Int Ed Engl 2018; 57:1813-1816. [DOI: 10.1002/anie.201710237] [Citation(s) in RCA: 160] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/20/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Jie Zhan
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Nankai University; Tianjin 300071 China
- College of Life Sciences; Key Laboratory of Bioactive Materials; Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 China
| | - Yanbin Cai
- College of Life Sciences; Key Laboratory of Bioactive Materials; Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 China
| | - Shuangshuang He
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Nankai University; Tianjin 300071 China
| | - Ling Wang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Nankai University; Tianjin 300071 China
| | - Zhimou Yang
- College of Life Sciences; Key Laboratory of Bioactive Materials; Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 China
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17
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Yang C, Chen L, Huang H, Ji T, Jiang Y, Chen X, Zhou C. Controllable fabrication of novel pH-, thermo-, and light-responsive supramolecular dendronized copolymers with dual self-assembly behavior. Polym Chem 2018. [DOI: 10.1039/c8py00448j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel tri-stimulus responsive supramolecular dendronized copolymers with dual self-assembly behavior are prepared, exhibiting fast and fully reversible phase transitions and trans–cis isomerization.
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Affiliation(s)
- ChangAn Yang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- PR China
| | - Ling Chen
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- PR China
| | - He Huang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- PR China
| | - Tuo Ji
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- PR China
| | - YingXiang Jiang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- PR China
| | - Xiaobo Chen
- Department of Chemistry
- University of Missouri – Kansas City
- Kansas City
- USA
| | - CongShan Zhou
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- PR China
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18
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Ramasamy T, Ruttala HB, Gupta B, Poudel BK, Choi HG, Yong CS, Kim JO. Smart chemistry-based nanosized drug delivery systems for systemic applications: A comprehensive review. J Control Release 2017; 258:226-253. [DOI: 10.1016/j.jconrel.2017.04.043] [Citation(s) in RCA: 246] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 04/28/2017] [Accepted: 04/30/2017] [Indexed: 12/21/2022]
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19
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Wang J, Wu B, Li S, He Y. NIR light and enzyme dual stimuli-responsive amphiphilic diblock copolymer assemblies. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28632] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jilei Wang
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 People's Republic of China
| | - Bing Wu
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 People's Republic of China
| | - Shang Li
- 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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20
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Xu F, Li H, Luo YL, Tang W. Redox-Responsive Self-Assembly Micelles from Poly(N-acryloylmorpholine-block-2-acryloyloxyethyl ferrocenecarboxylate) Amphiphilic Block Copolymers as Drug Release Carriers. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5181-5192. [PMID: 28097871 DOI: 10.1021/acsami.6b16017] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Novel well-defined redox-responsive ferrocene-containing amphiphilic block copolymers (PACMO-b-PAEFC) were synthesized by ATRP, with poly(N-acryloylmorpholine) (PACMO) as hydrophilic blocks and poly(2-acryloyloxyethyl ferrocenecarboxylate) (PAEFC) as hydrophobic blocks. The copolymers were characterized by FT-IR and 1H NMR spectroscopies and gel permeation chromatography, and the crystalline behavior was determined by X-ray diffraction and small-angle X-ray scattering. The results showed that the size of the lamellar crystals and crystallinity vary with the systematic compositions while the periodic structure of the lamellar stacks has no obvious change. These block copolymers could self-assemble and form globular nanoscaled core-shell micellar aggregates in aqueous solution. The reductive ferrocene groups could be changed into hydrophilic ferrocenium via mild oxidation, whereas the polymer micelles at the oxidation state could reversibly recover from their original states upon reduction by vitamin C. The tunable redox response was investigated and verified by transmission electron microscopy, ultraviolet-visible spectroscopy, cyclic voltammetry, and dynamic light scattering measurements. The copolymer micelles were used to entrap anticancer drug paclitaxel (PTX), with high drug encapsulation efficiency of 61.4%, while the PTX-loaded drug formulation exhibited oxidation-controlled drug release, and the release rate could be mediated by the kinds and concentrations of oxidants. MTT assay was performed to disclose the biocompatibility and security of the copolymer micelles and to assess anticancer efficiency of the PTX-loaded nanomicelles. The developed copolymer nanomicelles with reversible redox response are anticipated to have potential in targeted drug delivery systems for cancer therapy.
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Affiliation(s)
- Feng Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University , Xi'an 710062, People's Republic of China
| | - He Li
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University , Xi'an 710062, People's Republic of China
| | - Yan-Ling Luo
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University , Xi'an 710062, People's Republic of China
| | - Wei Tang
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University , Xi'an 710062, People's Republic of China
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21
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Wang Z, Cao Y, Zhang X, Wang D, Liu M, Xie Z, Wang Y. Rapid Self-Assembly of Block Copolymers for Flower-Like Particles with High Throughput. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:13517-13524. [PMID: 27993024 DOI: 10.1021/acs.langmuir.6b03940] [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
The self-assembly of block copolymers has evolved into a foremost bottom-up approach for building polymeric materials. Historical challenges exist within this lively field, including the scalability and elegant simplicity of self-assembled aggregates with predictable structures. Here, we report a generally applicable strategy for the rapid self-assembly of poly(ethylene glycol)-block-poly(l-lactic acid) with the help of a single oil-in-water emulsion. A kind of flower-like polymer particle with filamentous surface branches is rapidly formed after removing the oil phase from the emulsion system. Moreover, the dimension of the branched filaments and the spherical internal core can be controlled through regulating the block ratio and the emulsification conditions. In particular, we propose an explosion theory as a balance between phase separation and interchain interaction for explaining the formation of the branched structures of the flower-like particles. The particles with high throughput are further functionalized with polypyrrole for their use in enhanced photoelectric-sensing applications.
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Affiliation(s)
- Zhen Wang
- Department of Chemistry, Renmin University of China , Beijing 100872, China
| | - Yuanyuan Cao
- Department of Chemistry, Renmin University of China , Beijing 100872, China
| | - Xinyue Zhang
- Department of Chemistry, Renmin University of China , Beijing 100872, China
| | - Dingguan Wang
- Department of Chemistry, Renmin University of China , Beijing 100872, China
| | - Ming Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science , Changchun 130022, China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science , Changchun 130022, China
| | - Yapei Wang
- Department of Chemistry, Renmin University of China , Beijing 100872, China
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23
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Enzyme responsive self-assembled amphiphilic diblock copolymer synthesized by the combination of NMP and macromolecular azo coupling reaction. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.09.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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24
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Wang Y, Xing P, Li S, Ma M, Yang M, Zhang Y, Wang B, Hao A. Facile Stimuli-Responsive Transformation of Vesicle to Nanofiber to Supramolecular Gel via ω-Amino Acid-Based Dynamic Covalent Chemistry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10705-10711. [PMID: 27686007 DOI: 10.1021/acs.langmuir.6b02478] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This paper reports an interesting type of self-assembly systems based on dynamic covalent bonds. The systems are pH-responsible and reversible, which could be utilized for controlling the morphology transformation of the assemblies. In alkaline conditions, the amine group of 11-aminoundecanoic acid (AUA) can connect with the aldehyde group of benzaldehyde (BA) or 1-naphthaledhyde (NA) by dynamic covalent bond to form a small organic building block accompanied by the morphological transformation from vesicles to fibers. When pH is lowered to a neutral value, the dynamic covalent bonds (imine bonds) can be hydrolyzed, leading to the dissociation of fibers and appearance of spherical aggregates. The transformation was confirmed reversible as fibers appeared again when the pH was changed back to alkaline value. In addition, a reversibly controlled gel was designed based on the nanofiber formation. NaCl, which is capable of greatly enhance the nanofiber density and cross-linking, was used to induce the growth of free-standing gel from free-flowing nanofiber system, and the resultant gel was proven to be pH-reversible.
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Affiliation(s)
- Yajie Wang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, People's Republic of China
| | - Pengyao Xing
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, People's Republic of China
| | - Shangyang Li
- Department of chemistry, College of Science, Agricultural University of Hebei , Baoding 071001, People's Republic of China
| | - Mingfang Ma
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, People's Republic of China
| | - Minmin Yang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, People's Republic of China
| | - Yimeng Zhang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, People's Republic of China
| | - Bo Wang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, People's Republic of China
| | - Aiyou Hao
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, People's Republic of China
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25
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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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26
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Li Y, Liu G, Wang X, Hu J, Liu S. Enzyme-Responsive Polymeric Vesicles for Bacterial-Strain-Selective Delivery of Antimicrobial Agents. Angew Chem Int Ed Engl 2015; 55:1760-4. [DOI: 10.1002/anie.201509401] [Citation(s) in RCA: 187] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/16/2015] [Indexed: 01/28/2023]
Affiliation(s)
- Yamin Li
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
| | - Guhuan Liu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
| | - Xiaorui Wang
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
| | - Jinming Hu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
| | - Shiyong Liu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
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27
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Li Y, Liu G, Wang X, Hu J, Liu S. Enzyme-Responsive Polymeric Vesicles for Bacterial-Strain-Selective Delivery of Antimicrobial Agents. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509401] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yamin Li
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
| | - Guhuan Liu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
| | - Xiaorui Wang
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
| | - Jinming Hu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
| | - Shiyong Liu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale iChem (Collaborative Innovation Center of Chemistry for Energy Materials); Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui Province 230026 China
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28
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Buzhor M, Harnoy AJ, Tirosh E, Barak A, Schwartz T, Amir RJ. Supramolecular Translation of Enzymatically Triggered Disassembly of Micelles into Tunable Fluorescent Responses. Chemistry 2015; 21:15633-8. [PMID: 26366522 DOI: 10.1002/chem.201502988] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Indexed: 01/22/2023]
Abstract
The need for advanced fluorescent imaging and delivery platforms has motivated the development of smart probes that change their fluorescence in response to external stimuli. Here a new molecular design of fluorescently labeled PEG-dendron hybrids that self-assemble into enzyme-responsive micelles with tunable fluorescent responses is reported. In the assembled state, the fluorescence of the dyes is quenched or shifted due to intermolecular interactions. Upon enzymatic cleavage of the hydrophobic end-groups, the labeled polymeric hybrids become hydrophilic, and the micelles disassemble. This supramolecular change is translated into a spectral response as the dye-dye interactions are eliminated and the intrinsic fluorescence is regained. We demonstrate the utilization of this molecular design to generate both Turn-On and spectral shift responses by adjusting the type of the labeling dye. This approach enables transformation of non-responsive labeling dyes into smart fluorescent probes.
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Affiliation(s)
- Marina Buzhor
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Assaf J Harnoy
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Einat Tirosh
- Department of Physical Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Ayana Barak
- Department of Physical Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Tal Schwartz
- Department of Physical Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Roey J Amir
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel). .,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel).
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Abstract
Enzymes underpin physiological function and exhibit dysregulation in many disease-associated microenvironments and aberrant cell processes. Exploiting altered enzyme activity and expression for diagnostics, drug targeting, and drug release is tremendously promising. When combined with booming research in nanobiotechnology, enzyme-responsive nanomaterials used for controlled drug release have achieved significant development and have been studied as an important class of drug delivery strategies in nanomedicine. In this review, we describe enzymes such as proteases, phospholipases and oxidoreductases that serve as delivery triggers. Subsequently, we explore recently developed enzyme-responsive nanomaterials with versatile applications for extracellular and intracellular drug delivery. We conclude by discussing future opportunities and challenges in this area.
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Affiliation(s)
- Quanyin Hu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA.
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30
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Yang Q, Bai L, Zhang Y, Zhu F, Xu Y, Shao Z, Shen YM, Gong B. Dynamic Covalent Diblock Copolymers: Instructed Coupling, Micellation and Redox Responsiveness. Macromolecules 2014. [DOI: 10.1021/ma5017083] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Qinglai Yang
- Shanghai
Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine
(Ministry of Education), Bio-ID Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ling Bai
- School
of Biomedical Engineering, Bio-ID Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuanqing Zhang
- Shanghai
Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Fangxia Zhu
- Shanghai
Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine
(Ministry of Education), Bio-ID Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuhong Xu
- School
of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhifeng Shao
- School
of Biomedical Engineering, Bio-ID Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yu-Mei Shen
- Shanghai
Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine
(Ministry of Education), Bio-ID Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bing Gong
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
- Department
of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
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31
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Chang X, Dong R, Ren B, Cheng Z, Peng J, Tong Z. Novel ferrocenyl-terminated linear-dendritic amphiphilic block copolymers: synthesis, redox-controlled reversible self-assembly, and oxidation-controlled release. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:8707-8716. [PMID: 24998252 DOI: 10.1021/la501652r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Novel linear-dendritic amphiphilic block copolymers with hydrophilic poly(ethylene glycol) (PEG) block and hydrophobic Percec-type dendrons containing ferrocenyl terminals were synthesized by the esterification reaction of poly(ethylene glycol) methyl ether with ferrocenyl-terminated alkyl-substituted benzoic acid dendrons. On the basis of the results that the critical aggregation concentration (CACox) of the oxidation state polymer is much higher than CACred of the corresponding reduction state, these polymers can reversibly self-assemble into various aggregates, such as spherical, wormlike micelles, and vesicles, and also disassemble into irregular fragments in aqueous solution by redox reaction when changing the polymer concentrations. Copolymer PEG45-b-Fc3 (3) with 3,4,5-tris(11-ferrocenylundecyloxy) benzoic acid (2) can self-assemble into nanoscale wormlike micelles when the polymer concentration in aqueous solution is above its CACox. These wormlike micelles can be transformed into nanosized vesicles by Fe2(SO4)3 and regained by vitamin C. Interestingly, copolymer PEG45-b-Fc2 (5) with 3,5-bis(11-ferrocenylundecyloxy) benzoic acid (4) can reversibly self-assemble into spherical micelles with two different sizes by redox reaction above the CACox, indicating that the terminal hydrophobic tail number of dendrons plays a key role in determining the self-assembled structures. Furthermore, rhodamine 6G (R6G)-loaded polymer aggregates have been successfully used for the oxidation-controlled release of loaded molecules, and the release rate can be mediated by the concentrations of oxidant and copolymers. The results provide an effective approach to the reversible self-assembly of linear-dendritic amphiphilic block copolymers and also promise the potential of these novel redox-responsive amphiphilic block copolymers in drug delivery systems, catalyst supports, and other research fields.
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Affiliation(s)
- Xueyi Chang
- Research Institute of Materials Science, South China University of Technology , Guangzhou 510640, People's Republic of China
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32
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Cho H, Cho YY, Bae YH, Kang HC. Nucleotides as nontoxic endogenous endosomolytic agents in drug delivery. Adv Healthc Mater 2014; 3:1007-14. [PMID: 24535942 DOI: 10.1002/adhm.201400008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 01/27/2014] [Indexed: 11/07/2022]
Abstract
Nontoxic endogenous nucleotides such as adenosine triphosphate and guanosine triphosphate have secondary phosphate groups, causing proton-buffering capacity and/or hemolytic activity in endolysosomal pH ranges. Nucleotides co-delivered in single polymeric pDNA nanocarrier induce highly enhanced transfection efficiency with negligible cytotoxicity due to their endosomolytic functions.
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Affiliation(s)
- Hana Cho
- Department of Pharmacy and Integrated Research; Institute of Pharmaceutical Sciences; College of Pharmacy; The Catholic University of Korea; 43 Jibong-ro Wonmi-gu, Bucheon-si Gyeonggi-do 420-743 Republic of Korea
| | - Yong-Yeon Cho
- Department of Pharmacy and Integrated Research; Institute of Pharmaceutical Sciences; College of Pharmacy; The Catholic University of Korea; 43 Jibong-ro Wonmi-gu, Bucheon-si Gyeonggi-do 420-743 Republic of Korea
| | - You Han Bae
- Department of Pharmaceutics and Pharmaceutical Chemistry; The University of Utah; 30 S 2000 E, Rm 2972 Salt Lake City UT 84112 USA
- Utah-Inha Drug Delivery Systems (DDS) and Advanced Therapeutics Research Center; 7-50 Songdo-dong Yeonsu-gu Incheon 406-840 Republic of Korea
| | - Han Chang Kang
- Department of Pharmacy and Integrated Research; Institute of Pharmaceutical Sciences; College of Pharmacy; The Catholic University of Korea; 43 Jibong-ro Wonmi-gu, Bucheon-si Gyeonggi-do 420-743 Republic of Korea
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33
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Tong R, Tang L, Ma L, Tu C, Baumgartner R, Cheng J. Smart chemistry in polymeric nanomedicine. Chem Soc Rev 2014; 43:6982-7012. [DOI: 10.1039/c4cs00133h] [Citation(s) in RCA: 155] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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34
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Li Y, Wang Y, Huang G, Ma X, Zhou K, Gao J. Chaotropic-Anion-Induced Supramolecular Self-Assembly of Ionic Polymeric Micelles. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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35
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Li Y, Wang Y, Huang G, Ma X, Zhou K, Gao J. Chaotropic-anion-induced supramolecular self-assembly of ionic polymeric micelles. Angew Chem Int Ed Engl 2014; 53:8074-8. [PMID: 24916182 DOI: 10.1002/anie.201402525] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Indexed: 12/14/2022]
Abstract
Traditional micelle self-assembly is driven by the association of hydrophobic segments of amphiphilic molecules forming distinctive core-shell nanostructures in water. Here we report a surprising chaotropic-anion-induced micellization of cationic ammonium-containing block copolymers. The resulting micelle nanoparticle consists of a large number of ion pairs (≈60,000) in each hydrophobic core. Unlike chaotropic anions (e.g. ClO4(-)), kosmotropic anions (e.g. SO4(2-)) were not able to induce micelle formation. A positive cooperativity was observed during micellization, for which only a three-fold increase in ClO4(-) concentration was necessary for micelle formation, similar to our previously reported ultra-pH-responsive behavior. This unique ion-pair-containing micelle provides a useful model system to study the complex interplay of noncovalent interactions (e.g. electrostatic, van der Waals, and hydrophobic forces) during micelle self-assembly.
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Affiliation(s)
- Yang Li
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd., Dallas, TX 75390 (USA)
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36
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Wang K, Guo DS, Zhao MY, Liu Y. A Supramolecular Vesicle Based on the Complexation ofp-Sulfonatocalixarene with Protamine and its Trypsin-Triggered Controllable-Release Properties. Chemistry 2014; 22:1475-83. [DOI: 10.1002/chem.201303963] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 12/18/2013] [Indexed: 01/12/2023]
Affiliation(s)
- Kui Wang
- Department of Chemistry; State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P.R. China
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid; Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; Tianjin 300387 P.R. China
| | - Dong-Sheng Guo
- Department of Chemistry; State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P.R. China
| | - Meng-Yao Zhao
- Department of Chemistry; State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P.R. China
| | - Yu Liu
- Department of Chemistry; State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P.R. China
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37
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Huang X, Huang G, Zhang S, Sagiyama K, Togao O, Ma X, Wang Y, Li Y, Soesbe TC, Sumer BD, Takahashi M, Sherry AD, Gao J. Multi-Chromatic pH-Activatable19F-MRI Nanoprobes with Binary ON/OFF pH Transitions and Chemical-Shift Barcodes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301135] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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38
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Huang X, Huang G, Zhang S, Sagiyama K, Togao O, Ma X, Wang Y, Li Y, Soesbe TC, Sumer BD, Takahashi M, Sherry AD, Gao J. Multi-chromatic pH-activatable 19F-MRI nanoprobes with binary ON/OFF pH transitions and chemical-shift barcodes. Angew Chem Int Ed Engl 2013; 52:8074-8. [PMID: 23788453 DOI: 10.1002/anie.201301135] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 03/26/2013] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaonan Huang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvds, Dallas, TX 75390, USA
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Miao X, Cao W, Zheng W, Wang J, Zhang X, Gao J, Yang C, Kong D, Xu H, Wang L, Yang Z. Switchable Catalytic Activity: Selenium-Containing Peptides with Redox-Controllable Self-Assembly Properties. Angew Chem Int Ed Engl 2013; 52:7781-5. [DOI: 10.1002/anie.201303199] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Indexed: 11/06/2022]
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Miao X, Cao W, Zheng W, Wang J, Zhang X, Gao J, Yang C, Kong D, Xu H, Wang L, Yang Z. Switchable Catalytic Activity: Selenium-Containing Peptides with Redox-Controllable Self-Assembly Properties. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303199] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Dong J, Xun Z, Zeng Y, Yu T, Han Y, Chen J, Li YY, Yang G, Li Y. A versatile and robust vesicle based on a photocleavable surfactant for two-photon-tuned release. Chemistry 2013; 19:7931-6. [PMID: 23589382 DOI: 10.1002/chem.201300526] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Indexed: 02/05/2023]
Abstract
A small amphiphile that contains a coumarin unit and alkynyl groups, as a two-photon-cleavable segment and polymerizable groups, respectively, was designed and synthesized. The amphiphile showed a critical aggregation concentration of about 4.6×10(-5) M and formed a vesicle-type assembly. The formed vesicles were stabilized by in situ "click" polymerization without altering their morphology. Hydrophobic and hydrophilic guests can be encapsulated within the vesicle membrane and inside the aqueous core of the vesicle, respectively. The loaded guests can be released from the vesicle by using UV or near-IR stimuli, through splitting up the amphiphilic structure of the amphiphile. Distinguished dose-controlled photorelease of the polymeric vesicle is achieved with the maintenance of vesicular integrity, which makes the guest release dependent on the amount of cleavage of the amphiphilic structure during irradiation. This study provides a potential strategy for the development of versatile and stable drug-delivery systems that offer sustained and photo-triggered release.
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Affiliation(s)
- Jianming Dong
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
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Chen H, Moore T, Qi B, Colvin DC, Jelen EK, Hitchcock DA, He J, Mefford OT, Gore JC, Alexis F, Anker JN. Monitoring pH-triggered drug release from radioluminescent nanocapsules with X-ray excited optical luminescence. ACS NANO 2013; 7:1178-87. [PMID: 23281651 PMCID: PMC3612352 DOI: 10.1021/nn304369m] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
One of the greatest challenges in cancer therapy is to develop methods to deliver chemotherapy agents to tumor cells while reducing systemic toxicity to noncancerous cells. A promising approach to localizing drug release is to employ drug-loaded nanoparticles with coatings that release the drugs only in the presence of specific triggers found in the target cells such as pH, enzymes, or light. However, many parameters affect the nanoparticle distribution and drug release rate, and it is difficult to quantify drug release in situ. In this work, we show proof-of-principle for a "smart" radioluminescent nanocapsule with an X-ray excited optical luminescence (XEOL) spectrum that changes during release of the optically absorbing chemotherapy drug, doxorubicin. XEOL provides an almost background-free luminescent signal for measuring drug release from particles irradiated by a narrow X-ray beam. We study in vitro pH-triggered release rates of doxorubicin from nanocapsules coated with a pH-responsive polyelectrolyte multilayer using HPLC and XEOL spectroscopy. The doxorubicin was loaded to over 5% by weight and released from the capsule with a time constant in vitro of ∼36 days at pH 7.4 and 21 h at pH 5.0, respectively. The Gd₂O₂S:Eu nanocapsules are also paramagnetic at room temperature with similar magnetic susceptibility and similarly good MRI T₂ relaxivities to Gd₂O₃, but the sulfur increases the radioluminescence intensity and shifts the spectrum. Empty nanocapsules did not affect cell viability up to concentrations of at least 250 μg/mL. These empty nanocapsules accumulated in a mouse liver and spleen following tail vein injection and could be observed in vivo using XEOL. The particles are synthesized with a versatile template synthesis technique which allows for control of particle size and shape. The XEOL analysis technique opens the door to noninvasive quantification of drug release as a function of nanoparticle size, shape, surface chemistry, and tissue type.
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Affiliation(s)
- Hongyu Chen
- Department of Chemistry, Center for optical materials science and engineering technology (COMSET), and environmental toxicology program; Clemson University, Clemson, SC, 29634, USA
| | - Thomas Moore
- Department of Bioengineering, Clemson University, Clemson, SC, 29634, USA
| | - Bin Qi
- Department of Materials Science Engineering, Clemson University, Clemson, SC, 29634, USA
| | - Daniel C. Colvin
- Institute of Imaging Science (VUIIS), Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, 37232, USA
| | - Erika K. Jelen
- Department of Bioengineering, Clemson University, Clemson, SC, 29634, USA
| | - Dale A. Hitchcock
- Department of Physics & Astronomy, Clemson University, Clemson, SC, 29634, USA
| | - Jian He
- Department of Physics & Astronomy, Clemson University, Clemson, SC, 29634, USA
| | - O. Thompson Mefford
- Department of Materials Science Engineering, Clemson University, Clemson, SC, 29634, USA
| | - John C. Gore
- Institute of Imaging Science (VUIIS), Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, 37232, USA
| | - Frank Alexis
- Department of Bioengineering, Clemson University, Clemson, SC, 29634, USA
| | - Jeffrey N. Anker
- Department of Chemistry, Center for optical materials science and engineering technology (COMSET), and environmental toxicology program; Clemson University, Clemson, SC, 29634, USA
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Lv C, Wang Z, Wang P, Tang X. Photodegradable polyesters for triggered release. Int J Mol Sci 2012; 13:16387-99. [PMID: 23208376 PMCID: PMC3546696 DOI: 10.3390/ijms131216387] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 11/14/2012] [Accepted: 11/16/2012] [Indexed: 11/16/2022] Open
Abstract
Photodegradable polyesters were synthesized with a photolabile monomer 2-nitrophenylethylene glycol and dioyl chlorides with different lengths. These polymers can be assembled to form polymeric particles with encapsulation of target substances. Light activation can degrade these particles and release payloads in both aqueous solutions and RAW 264.7 cells.
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Affiliation(s)
- Cong Lv
- State Key Laboratory of Natural and Biomimetic Drugs, the School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China; E-Mails: (C.L.); (Z.W.); (P.W.)
| | - Zhen Wang
- State Key Laboratory of Natural and Biomimetic Drugs, the School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China; E-Mails: (C.L.); (Z.W.); (P.W.)
| | - Peng Wang
- State Key Laboratory of Natural and Biomimetic Drugs, the School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China; E-Mails: (C.L.); (Z.W.); (P.W.)
| | - Xinjing Tang
- State Key Laboratory of Natural and Biomimetic Drugs, the School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China; E-Mails: (C.L.); (Z.W.); (P.W.)
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Jiao D, Geng J, Loh XJ, Das D, Lee TC, Scherman OA. Supramolecular Peptide Amphiphile Vesicles through Host-Guest Complexation. Angew Chem Int Ed Engl 2012; 51:9633-7. [DOI: 10.1002/anie.201202947] [Citation(s) in RCA: 178] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 06/18/2012] [Indexed: 01/18/2023]
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Jiao D, Geng J, Loh XJ, Das D, Lee TC, Scherman OA. Supramolecular Peptide Amphiphile Vesicles through Host-Guest Complexation. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202947] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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46
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Lv C, Wang Z, Wang P, Tang X. Photodegradable polyurethane self-assembled nanoparticles for photocontrollable release. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:9387-9394. [PMID: 22646923 DOI: 10.1021/la301534h] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Light-responsive drug delivery systems are particularly appealing that are capable of releasing active molecules at the appropriate site and rate. We synthesized a series of photodegradable polymers that can form nanoparticles for drug encapsulation. These particles in aqueous solutions are stable in buffers with different pHs or at evaluated temperatures, while light can trigger the crash of particles and the release of encapsulated substances. The release efficiency can reach up to 90% based on Nile red fluorescence intensity upon 15 min light irradiation. Nanoparticle uptake by phagocytic cells and light-triggered release in cells were observed by fluorescence emission of the hydrolyzed fluorescein diacetate upon photoinduced degradation of these nanoparticles. No significant toxicity of these nanoparticles was found at the concentrations up to 1000 μg/mL before or after light irradiation. Further encapsulation and triggered release of a bioactive model drug (Tagalsin G) was evaluated for RAW 264.7 cells. Tagalsin G encapsulated in nanoparticles did not show cytotoxity to cells, while light triggered the release of Tagalsin G increasing cell death dramatically from 9% to 67%. Our model studies show a new promising strategy to trigger drug release in cells.
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Affiliation(s)
- Cong Lv
- State Key Laboratory of Natural and Biomimetic Drugs, the School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Rd., Beijing 100191, China
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Liu K, Yao Y, Wang C, Liu Y, Li Z, Zhang X. From Bola-amphiphiles to Supra-amphiphiles: The Transformation from Two-Dimensional Nanosheets into One-Dimensional Nanofibers with Tunable-Packing Fashion of n-Type Chromophores. Chemistry 2012; 18:8622-8. [DOI: 10.1002/chem.201200898] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Indexed: 12/23/2022]
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Zhang X, Chu X, Wang L, Wang H, Liang G, Zhang J, Long J, Yang Z. Rational Design of a Tetrameric Protein to Enhance Interactions between Self-Assembled Fibers Gives Molecular Hydrogels. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108612] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Zhang X, Chu X, Wang L, Wang H, Liang G, Zhang J, Long J, Yang Z. Rational Design of a Tetrameric Protein to Enhance Interactions between Self-Assembled Fibers Gives Molecular Hydrogels. Angew Chem Int Ed Engl 2012; 51:4388-92. [DOI: 10.1002/anie.201108612] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Indexed: 01/12/2023]
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50
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Dai J, Lin S, Cheng D, Zou S, Shuai X. Interlayer-Crosslinked Micelle with Partially Hydrated Core Showing Reduction and pH Dual Sensitivity for Pinpointed Intracellular Drug Release. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103806] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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