1
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Li J, Chen M, Zhou S, Li H, Hao J. Self-assembly of fullerene C 60-based amphiphiles in solutions. Chem Soc Rev 2022; 51:3226-3242. [PMID: 35348141 DOI: 10.1039/d1cs00958c] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fullerene C60 is an all-carbon cage molecule with rich physicochemical properties. It is highly symmetric and hydrophobic, which can be used as a building block for the preparation of amphiphiles that self-assemble into diverse supramolecular structures in aqueous solutions. Meanwhile, C60 is also lipophobic, which is different from the alkyl chains in traditional surfactants. By attaching alkyl chains to the C60 sphere, a new type of lipophobic-lipophilic amphiphiles can be constructed which undergo self-assembly in n-alkanes. When inorganic clusters such as polyoxometalate are linked to the C60 sphere, organic-inorganic hybrids will be obtained which can self-assemble in polar organic solvents. Pristine C60 has also been modified by polar groups such as hydroxy and carboxy, which are linked to hydrophobic moieties and form a new class of amphiphiles. In this review, the self-assembly of C60-based amphiphiles in aqueous and nonaqueous solutions will be summarized. The characteristics exhibited by C60-based amphiphiles during the self-assembly will be discussed with close comparison to traditional surfactants, and the influences of the aggregate formation on the physicochemical properties of the C60 sphere will be described. Finally, a brief summary will be given together with a promising perspective in near future.
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Affiliation(s)
- Jinrui Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
| | - Mengjun Chen
- School of Qilu Transportation, Shandong University, Jinan, 250002, China
| | - Shengju Zhou
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, China
| | - Hongguang Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
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2
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Kraevaya OA, Novikov AV, Shestakov AF, Ershova ES, Savinova EA, Kameneva LV, Veiko NN, Schols D, Balzarini J, Kostyuk SV, Troshin PA. Water-soluble fullerene-based nanostructures with promising antiviral and myogenic activity. Chem Commun (Camb) 2021; 56:10203-10206. [PMID: 32748905 DOI: 10.1039/d0cc03928d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we report a straightforward method for the synthesis of a water-soluble C60 fullerene derivative decorated with five residues of phosphonic acid. Self-assembly of the synthesized compound in aqueous solution leads to the formation of nanostructures with unprecedented myogenic and antiviral activity.
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Affiliation(s)
- Olga A Kraevaya
- Skolkovo Institute of Science and Technology, Nobel St. 3, Moscow, 143026, Russia. and IPCP RAS, Semenov Prospect 1, Chernogolovka, 142432, Russia
| | - Artem V Novikov
- Skolkovo Institute of Science and Technology, Nobel St. 3, Moscow, 143026, Russia. and IPCP RAS, Semenov Prospect 1, Chernogolovka, 142432, Russia
| | - Alexander F Shestakov
- IPCP RAS, Semenov Prospect 1, Chernogolovka, 142432, Russia and Department of Physical and Chemical Engineering, Lomonosov Moscow State University, 115478, Moscow, Russia
| | - Elizaveta S Ershova
- Research Centre for Medical Genetics RAMS, Moskvorech'e St. 1, Moscow, 115478, Russia
| | - Ekaterina A Savinova
- Research Centre for Medical Genetics RAMS, Moskvorech'e St. 1, Moscow, 115478, Russia
| | - Larisa V Kameneva
- Research Centre for Medical Genetics RAMS, Moskvorech'e St. 1, Moscow, 115478, Russia
| | - Nataliya N Veiko
- Research Centre for Medical Genetics RAMS, Moskvorech'e St. 1, Moscow, 115478, Russia
| | - Dominique Schols
- Rega Institute for Medical Research, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Jan Balzarini
- Rega Institute for Medical Research, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Svetlana V Kostyuk
- Research Centre for Medical Genetics RAMS, Moskvorech'e St. 1, Moscow, 115478, Russia
| | - Pavel A Troshin
- Skolkovo Institute of Science and Technology, Nobel St. 3, Moscow, 143026, Russia. and IPCP RAS, Semenov Prospect 1, Chernogolovka, 142432, Russia
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3
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Li Y, Wei Y, Leng X, Liu G, Xia Q, Wang H. Molecular dynamics simulations on fullerene surfactants with different charges at the air-water interface. Phys Chem Chem Phys 2020; 22:16353-16358. [PMID: 32656554 DOI: 10.1039/d0cp01979h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The interfacial activity of fullerene surfactants at the air-water interface is studied via molecular dynamics and metadynamics simulations. Fullerene surfactants with different charges show different surface activity. Meanwhile, studies show that fullerene surfactants with zero or one positive charge show interesting interface behaviour, i.e. the hydrophobic fullerene of the fullerene surfactant with zero charge orients to bulk water while the fullerene surfactant with one positive charge can be a hydrophilic and hydrophobic rotator at the air-water interface.
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Affiliation(s)
- Yunzhi Li
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
| | - Yaoyao Wei
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
| | - Xia Leng
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
| | - Guokui Liu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
| | - Qiying Xia
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
| | - Honglei Wang
- Beijing Kein Research Center for Natural Sciences, Beijing 100022, China.
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4
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Luo J, Liu T, Qian K, Wei B, Hu Y, Gao M, Sun X, Lin Z, Chen J, Bera MK, Chen Y, Zhang R, Mao J, Wesdemiotis C, Tsige M, Cheng SZD, Liu T. Continuous Curvature Change into Controllable and Responsive Onion-like Vesicles by Rigid Sphere-Rod Amphiphiles. ACS NANO 2020; 14:1811-1822. [PMID: 31995358 DOI: 10.1021/acsnano.9b07611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We observe the formation of highly controllable and responsive onion-like vesicles by using rigid sphere-rod amphiphilic hybrid macromolecules, composed of charged, hydrophilic Keggin-type clusters (spheres) and hydrophobic rod-like oligofluorenes (OFs). Unlike the commonly used approach, which mainly relies on chain bending of flexible molecules to satisfy different curvatures in onion-like vesicles, the rigid hybrids form flexible interdigitations by tuning the angles between OFs, leading to the formation of bilayers with different sizes. The self-assembled vesicles possess complete onion-like structures from most inner to outer layers, and their size (layer number) can be accurately manipulated by different solution conditions including solvent polarity, ionic strength, temperature, and hybrid concentration, with fixed interbilayer distance under all conditions. Moreover, the vesicle size (layer number) shows excellent reversibility to the change of temperature. The charged feature of spheres, rod length, and overall hybrid architecture shows significant effects on the formation of such onion-like vesicles.
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Affiliation(s)
- Jiancheng Luo
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Tong Liu
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
- South China Advanced Institute for Soft Matter Science and Technology , South China University of Technology , Guangzhou 510640 , China
- School of Molecular Science and Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Kun Qian
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Benqian Wei
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Yinghe Hu
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Min Gao
- Advanced Materials and Liquid Crystal Institute , Kent State University , Kent , Ohio 44242 , United States
| | - Xinyu Sun
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Zhiwei Lin
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Jiahui Chen
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Mrinal K Bera
- NSF's ChemMatCARS , The University of Chicago , Chicago , Illinois 60637 , United States
| | - Yuhang Chen
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Ruimeng Zhang
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Jialin Mao
- Department of Chemistry , The University of Akron , Akron , Ohio 44325 , United States
| | - Chrys Wesdemiotis
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
- Department of Chemistry , The University of Akron , Akron , Ohio 44325 , United States
| | - Mesfin Tsige
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Stephen Z D Cheng
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
- South China Advanced Institute for Soft Matter Science and Technology , South China University of Technology , Guangzhou 510640 , China
| | - Tianbo Liu
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
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5
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Chen M, Zhou S, Guo L, Wang L, Yao F, Hu Y, Li H, Hao J. Aggregation Behavior and Antioxidant Properties of Amphiphilic Fullerene C 60 Derivatives Cofunctionalized with Cationic and Nonionic Hydrophilic Groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6939-6949. [PMID: 31050292 DOI: 10.1021/acs.langmuir.8b03681] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Amphiphilic derivatives of fullerene C60 are attractive from viewpoints of supramolecular chemistry and biomedicine. The establishment of relationships among the molecular structure, aggregation behavior and properties such as scavenging radicals of the amphiphilic C60 derivatives is the key to push these carbon nanomaterials to real applications. In this work, six monosubstituted C60 derivatives were synthesized by a one-step quaternization of their neutral precursors, which bear Percec monodendrons terminated with oligo(poly(ethylene oxide)) (o-PEO) chain(s). The main difference among the C60 derivatives lies in the number and substituted position of the o-PEO chain(s) within the Percec monodendron. Derivative with a 4-substitution of the o-PEO chain still showed limited solubility in water. Other derivatives possessing two or three o-PEO chains exhibited much improved solubilities and rich aggregation behavior in water. It was found that the formation of aggregates is regulated both by the number and the substituted pattern of the o-PEO chains. Typical morphologies include nanosheets, nanowires, vesicles, nanotubes, and nanorods. Although the structures of the C60 derivatives are different from those of traditional surfactants, their aggregation behavior can be also well explained by applying the theory of critical packing parameter. Interestingly, the capabilities of the C60 derivatives to scavenge the hydroxyl radicals (OH·-) followed the same order of their solubility in water, where the compound bearing three o-PEO chains with a 2,3,4-substitution got the champion quenching efficiency of ∼97.79% at a concentration of 0.15 mg·mL-1 (∼0.11 mmol·L-1).
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Affiliation(s)
- Mengjun Chen
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Shengju Zhou
- School of Chemistry and Chemical Engineering , Shandong University of Technology , Zibo 255049 , China
| | - Luxuan Guo
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Lin Wang
- Analytical Center of Qilu Normal University , Jinan 250100 , China
| | - Fuxin Yao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Yuanyuan Hu
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Hongguang Li
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
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6
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Yuan J, Wang L, Wang Y, Dong S, Hao J. Eu 3+-Controlled Fluorescent Bilayer Vesicles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4125-4132. [PMID: 30773018 DOI: 10.1021/acs.langmuir.9b00302] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
By appropriate substitution, polyoxometalates (POMs) can be modified to be organic-inorganic supramolecules (OISMs) that are nonaqueous or water soluble and form aggregates in solution. Here, we report a new OISM, (TBA)3POM-PPCT, that can self-assemble to form bilayer vesicles controlled by Eu3+ in nonaqueous solution. Dynamic light scattering, transmission and scanning electron microscopy techniques, and atomic force microscopy clearly demonstrated the controllable formation of stable bilayer vesicles with an average hydrodynamic radius of about 510 nm. Because of the coordination between (TBA)3POM-PPCT and Eu3+, the stable vesicles possess fluorescence, determined by studying fluorescence spectra, and show highly selective response to Cu2+, allowing them to function as an ion-detecting platform to Cu2+.
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Affiliation(s)
- Jin Yuan
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Ling Wang
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Yitong Wang
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Shuli Dong
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
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7
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Dong C, Yuan J, Hoffmann H, Hao J. Self-assembly and photo-responsive behavior of bis-terpyridyl Eu3+-complex L1. NEW J CHEM 2019. [DOI: 10.1039/c9nj04252k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In the present paper, a bis-terpyridyl Eu3+ complex (bis-terpyridyl Eu3+-complex L1) was synthesized through the coordination between Eu3+ and a compound L1 with an azobenzene-functionalized chain between the two terpyridine ligands.
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Affiliation(s)
- Chuan Dong
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials
- Shandong University
- Ministry of Education
- Jinan 250100
- China
| | - Jin Yuan
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials
- Shandong University
- Ministry of Education
- Jinan 250100
- China
| | | | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials
- Shandong University
- Ministry of Education
- Jinan 250100
- China
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8
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Kunkel M, Schildknecht S, Boldt K, Zeyffert L, Schleheck D, Leist M, Polarz S. Increasing the Resistance of Living Cells against Oxidative Stress by Nonnatural Surfactants as Membrane Guards. ACS APPLIED MATERIALS & INTERFACES 2018; 10:23638-23646. [PMID: 29949339 PMCID: PMC6091502 DOI: 10.1021/acsami.8b07032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/27/2018] [Indexed: 06/08/2023]
Abstract
The importation of construction principles or even constituents from biology into materials science is a prevailing concept. Vice versa, the cellular level modification of living systems with nonnatural components is much more difficult to achieve. It has been done for analytical purposes, for example, imaging, to learn something about intracellular processes. Cases describing the improvement of a biological function by the integration of a nonnatural (nano)constituent are extremely rare. Because biological membranes contain some kind of a surfactant, for example, phospholipids, our idea is to modify cells with a newly synthesized surfactant. However, this surfactant is intended to possess an additional functionality, which is the reduction of oxidative stress. We report the synthesis of a surfactant with Janus-type head group architecture, a fullerene C60 modified by five alkyl chains on one side and an average of 20 oxygen species on the other hemisphere. It is demonstrated that the amphiphilic properties of the fullerenol surfactant are similar to that of lipids. Not only quenching of reactive oxygen species (superoxide, hydroxyl radicals, peroxynitrite, and hydrogen peroxide) was successful, but also the fullerenol surfactant exceeds benchmark antioxidant agents such as quercetin. The surfactant was then brought into contact with different cell types, and the viability even of delicate cells such as human liver cells (HepG2) and human dopaminergic neurons (LUHMES) has proven to be extraordinarily high. We could show further that the cells take up the fullerenol surfactant, and as a consequence, they are protected much better against oxidative stress.
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9
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Hsieh FY, Zhilenkov AV, Voronov II, Khakina EA, Mischenko DV, Troshin PA, Hsu SH. Water-Soluble Fullerene Derivatives as Brain Medicine: Surface Chemistry Determines If They Are Neuroprotective and Antitumor. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11482-11492. [PMID: 28263053 DOI: 10.1021/acsami.7b01077] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Delivering drugs to the central nervous system (CNS) is a major challenge in treating CNS-related diseases. Nanoparticles that can cross blood-brain barrier (BBB) are potential tools. In this study, water-soluble C60 fullerene derivatives with different types of linkages between the fullerene cage and the solubilizing addend were synthesized (compounds 1-3: C-C bonds, compounds 4-5: C-S bonds, compound 6: C-P bonds, and compounds 7-9: C-N bonds). Fullerene derivatives 1-6 were observed to induce neural stem cell (NSC) proliferation in vitro and rescue the function of injured CNS in zebrafish. Fullerene derivatives 7-9 were found to inhibit glioblastoma cell proliferation in vitro and reduce glioblastoma formation in zebrafish. These effects were correlated with the cell metabolic changes. Particularly, compound 3 bearing residues of phenylbutiryc acids significantly promoted NSC proliferation and neural repair without causing tumor growth. Meanwhile, compound 7 with phenylalanine appendages significantly inhibited glioblastoma growth without retarding the neural repair. We conclude that the surface functional group determines the properties as well as the interactions of C60 with NSCs and glioma cells, producing either a neuroprotective or antitumor effect for possible treatment of CNS-related diseases.
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Affiliation(s)
| | - A V Zhilenkov
- Institute for Problems of Chemical Physics of Russian Academy of Sciences , Semenov Prospect 1, Chernogolovka 142432, Russian Federation
| | - I I Voronov
- Institute for Problems of Chemical Physics of Russian Academy of Sciences , Semenov Prospect 1, Chernogolovka 142432, Russian Federation
| | - E A Khakina
- Institute for Problems of Chemical Physics of Russian Academy of Sciences , Semenov Prospect 1, Chernogolovka 142432, Russian Federation
| | - D V Mischenko
- Institute for Problems of Chemical Physics of Russian Academy of Sciences , Semenov Prospect 1, Chernogolovka 142432, Russian Federation
| | - Pavel A Troshin
- Institute for Problems of Chemical Physics of Russian Academy of Sciences , Semenov Prospect 1, Chernogolovka 142432, Russian Federation
- Skolkovo Institute of Science and Technology , Moscow 143005, Russian Federation
| | - Shan-Hui Hsu
- Institute of Cellular and System Medicine, National Health Research Institutes , Zhunan 35053, Taiwan, R.O.C
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10
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Nakai K, Ishihara K, Kappl M, Fujii S, Nakamura Y, Yusa SI. Polyion Complex Vesicles with Solvated Phosphobetaine Shells Formed from Oppositely Charged Diblock Copolymers. Polymers (Basel) 2017; 9:E49. [PMID: 30970729 PMCID: PMC6432163 DOI: 10.3390/polym9020049] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 01/24/2017] [Accepted: 01/30/2017] [Indexed: 11/16/2022] Open
Abstract
Diblock copolymers consisting of a hydrophilic poly(2-(methacryloyloxy)ethyl phosphorylcholine) (PMPC) block and either a cationic or anionic block were prepared from (3-(methacrylamido)propyl)trimethylammonium chloride (MAPTAC) or sodium 2-(acrylamido)-2-methylpropanesulfonate (AMPS). Polymers were synthesized via reversible addition-fragmentation chain transfer (RAFT) radical polymerization using a PMPC macro-chain transfer agent. The degree of polymerization for PMPC, cationic PMAPTAC, and anionic PAMPS blocks was 20, 190, and 196, respectively. Combining two solutions of oppositely charged diblock copolymers, PMPC-b-PMAPTAC and PMPC-b-PAMPS, led to the spontaneous formation of polyion complex vesicles (PICsomes). The PICsomes were characterized using ¹H NMR, static abd dynamic light scattering, transmittance electron microscopy (TEM), and atomic force microscopy. Maximum hydrodynamic radius (Rh) for the PICsome was observed at a neutral charge balance of the cationic and anionic diblock copolymers. The Rh value and aggregation number (Nagg) of PICsomes in 0.1 M NaCl was 78.0 nm and 7770, respectively. A spherical hollow vesicle structure was observed in TEM images. The hydrodynamic size of the PICsomes increased with concentration of the diblock copolymer solutions before mixing. Thus, the size of the PICsomes can be controlled by selecting an appropriate preparation method.
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Affiliation(s)
- Keita Nakai
- Department of Applied Chemistry, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
| | - Kazuhiko Ishihara
- Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Michael Kappl
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| | - Syuji Fujii
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan.
| | - Yoshinobu Nakamura
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan.
| | - Shin-Ichi Yusa
- Department of Applied Chemistry, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
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11
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Grimaldi N, Andrade F, Segovia N, Ferrer-Tasies L, Sala S, Veciana J, Ventosa N. Lipid-based nanovesicles for nanomedicine. Chem Soc Rev 2016; 45:6520-6545. [DOI: 10.1039/c6cs00409a] [Citation(s) in RCA: 180] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Multifunctional lipid-based nanovesicles (L-NVs) prepared by molecular self-assembly of membrane components together with (bio)-active molecules, by means of compressed CO2-media or other non-conventional methods lead to highly homogeneous, tailor-made nanovesicles that are used for advanced nanomedicine. Confocal microscopy image of siRNA transfection using L-NVs, reprinted with permission from de Jonge,et al.,Gene Therapy, 2006,13, 400–411.
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Affiliation(s)
- N. Grimaldi
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- Cerdanyola del Vallès
- Spain
- Nanomol Technologies SA
| | - F. Andrade
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- Cerdanyola del Vallès
- Spain
- Centro de Investigación Biomédica en Red de Bioingeniería
| | - N. Segovia
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- Cerdanyola del Vallès
- Spain
- Centro de Investigación Biomédica en Red de Bioingeniería
| | - L. Ferrer-Tasies
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- Cerdanyola del Vallès
- Spain
- Nanomol Technologies SA
| | - S. Sala
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- Cerdanyola del Vallès
- Spain
- Centro de Investigación Biomédica en Red de Bioingeniería
| | - J. Veciana
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- Cerdanyola del Vallès
- Spain
- Centro de Investigación Biomédica en Red de Bioingeniería
| | - N. Ventosa
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus Universitari de Bellaterra
- Cerdanyola del Vallès
- Spain
- Centro de Investigación Biomédica en Red de Bioingeniería
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12
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Mohanta V, Dey D, Ramakumar S, Patil S. Vesicular Nanostructure Formation by Self-Assembly of Anisotropic Penta-phenol-Substituted Fullerene in Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:13600-13608. [PMID: 26597225 DOI: 10.1021/acs.langmuir.5b03340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A study on self-assembly of anisotropically substituted penta-aryl fullerenes in water has been reported. The penta-phenol-substituted amphiphilic fullerene derivative [C60Ph5(OH)5] exhibited self-assembled vesicular nanostructures in water under the experimental conditions. The size of the vesicles was observed to depend upon the kinetics of self-assembly and could be varied from ∼300 to ∼70 nm. Our mechanistic study indicated that the self-assembly of C60Ph5(OH)5 is driven by extensive intermolecular as well as water-mediated hydrogen bonding along with fullerene-fullerene hydrophobic interaction in water. The cumulative effect of these interactions is responsible for the stability of vesicular structures even on the removal of solvent. The substitution of phenol with anisole resulted in different packing and interaction of the fullerene derivative, as indicated in the molecular dynamics studies, thus resulting in different self-assembled nanostructures. The hollow vesicles were further encapsulated with a hydrophobic conjugated polymer and water-soluble dye as guest molecules. Such confinement of π-conjugated polymers in fullerene has significance in bulk heterojunction devices for efficient exciton diffusion.
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Affiliation(s)
- Vaishakhi Mohanta
- Solid State and Structural Chemistry Unit, and ‡Department of Physics, Indian Institute of Science , Bangalore 560012, India
| | - Debayan Dey
- Solid State and Structural Chemistry Unit, and ‡Department of Physics, Indian Institute of Science , Bangalore 560012, India
| | - Suryanarayanarao Ramakumar
- Solid State and Structural Chemistry Unit, and ‡Department of Physics, Indian Institute of Science , Bangalore 560012, India
| | - Satish Patil
- Solid State and Structural Chemistry Unit, and ‡Department of Physics, Indian Institute of Science , Bangalore 560012, India
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13
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Ioannou CP, Ioannou GI, Moushi EE, Velonia K, Chronakis N. Self-Assembled Giant Vesicles Formed by Type I [3:3]-Hexakis Adducts of C60Equipped with Enantiomerically Purecyclo-Monomalonate Addends. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Gorgoll RM, Tsubota T, Harano K, Nakamura E. Cooperative Self-Assembly of Gold Nanoparticles on the Hydrophobic Surface of Vesicles in Water. J Am Chem Soc 2015; 137:7568-71. [DOI: 10.1021/jacs.5b03632] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Ricardo M. Gorgoll
- Department
of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takuya Tsubota
- Department
of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Koji Harano
- Department
of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Eiichi Nakamura
- Department
of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- CREST, JST, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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15
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Chu B, Fang D, Mao Y. Instrumentation on multi-scaled scattering of bio-macromolecular solutions. Int J Mol Sci 2015; 16:10016-37. [PMID: 25946340 PMCID: PMC4463630 DOI: 10.3390/ijms160510016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 04/14/2015] [Accepted: 04/22/2015] [Indexed: 11/17/2022] Open
Abstract
The design, construction and initial tests on a combined laser light scattering and synchrotron X-ray scattering instrument can cover studies of length scales from atomic sizes in Angstroms to microns and dynamics from microseconds to seconds are presented. In addition to static light scattering (SLS), dynamic light scattering (DLS), small angle X-ray scattering (SAXS) and wide angle X-ray diffraction (WAXD), the light scattering instrument is being developed to carry out studies in mildly turbid solutions, in the presence of multiple scattering. Three-dimensional photon cross correlation function (3D-PCCF) measurements have been introduced to couple with synchrotron X-ray scattering to study the structure, size and dynamics of macromolecules in solution.
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Affiliation(s)
- Benjamin Chu
- Chemistry Department, Stony Brook University, Stony Brook, New York, NY 11794-3400, USA.
| | - Dufei Fang
- Chemistry Department, Stony Brook University, Stony Brook, New York, NY 11794-3400, USA.
| | - Yimin Mao
- Chemistry Department, Stony Brook University, Stony Brook, New York, NY 11794-3400, USA.
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Hung C, Chang W, Liu S, Wu S, Chu C, Tsai Y, Imae T. Self‐aggregation of amphiphilic [60]fullerenyl focal point functionalized PAMAM dendrons into pseudodendrimers: DNA binding involving dendriplex formation. J Biomed Mater Res A 2014; 103:1595-604. [DOI: 10.1002/jbm.a.35299] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 07/22/2014] [Accepted: 07/23/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Cheng‐Hsiang Hung
- School of Medical Applied Chemistry, Chung Shan Medical UniversityTaichung40201 Taiwan
| | - Wen‐Wei Chang
- School of Biomedical Sciences, Chung Shan Medical UniversityTaichung40201 Taiwan
| | - Ssu‐Ching Liu
- School of Biomedical Sciences, Chung Shan Medical UniversityTaichung40201 Taiwan
| | - Shang‐Jung Wu
- School of Medical Applied Chemistry, Chung Shan Medical UniversityTaichung40201 Taiwan
| | - Chih‐Chien Chu
- School of Medical Applied Chemistry, Chung Shan Medical UniversityTaichung40201 Taiwan
- Department of Medical EducationChung Shan Medical University HospitalTaichung40201 Taiwan
| | - Ya‐Ju Tsai
- Graduate Institute of Applied Science and TechnologyNational Taiwan University of Science and TechnologyTaipei10607 Taiwan
| | - Toyoko Imae
- Graduate Institute of Applied Science and TechnologyNational Taiwan University of Science and TechnologyTaipei10607 Taiwan
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17
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Chang HY, Tu SH, Sheng YJ, Tsao HK. Colloidosomes formed by nonpolar/polar/nonpolar nanoball amphiphiles. J Chem Phys 2014; 141:054906. [DOI: 10.1063/1.4891516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Hung-Yu Chang
- Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Sheng-Hung Tu
- Department of Chemical and Materials Engineering, National Central University, Jhongli 320, Taiwan
| | - Yu-Jane Sheng
- Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Heng-Kwong Tsao
- Department of Chemical and Materials Engineering and Department of Physics, National Central University, Jhongli 320, Taiwan
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18
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Matei CI, Boulocher C, Boulé C, Schramme M, Viguier E, Roger T, Berthier Y, Trunfio-Sfarghiu AM, Blanchin MG. Ultrastructural analysis of healthy synovial fluids in three mammalian species. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2014; 20:903-911. [PMID: 24641871 DOI: 10.1017/s1431927614000415] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A better knowledge of synovial fluid (SF) ultrastructure is required to further understand normal joint lubrication and metabolism. The aim of the present study was to elucidate SF structural features in healthy joints from three mammalian species of different size compared with features in biomimetic SF. High-resolution structural analysis was performed using transmission electron microscopy (TEM) and scanning electron microscopy (SEM) and environmental SEM/wet scanning transmission electron microscopy mode complemented by TEM and SEM cryogenic methods. Laser-scanning confocal microscopy (LCM) was used to locate the main components of SF with respect to its ultrastructural organization. The present study showed that the ultrastructure of healthy SF is built from a network of vesicles with a size range from 100 to a few hundred nanometers. A multilayered organization of the vesicle membranes was observed with a thickness of about 5 nm. LCM study of biological SF compared with synthetic SF showed that the microvesicles consist of a lipid-based membrane enveloping a glycoprotein gel. Thus, healthy SF has a discontinuous ultrastructure based on a complex network of microvesicles. This finding offers novel perspectives for the diagnosis and treatment of synovial joint diseases.
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Affiliation(s)
- Constantin I Matei
- 1LaMCoS UMR5259,INSA-Lyon,CNRS,University of Lyon,69621 Villeurbanne,France
| | - Caroline Boulocher
- 4UPSP ICE 2011-03-101,VetAgro Sup,Veterinary Campus,University Claude Bernard Lyon 1,University of Lyon,69280 Marcy l'Etoile,France
| | - Christelle Boulé
- 3CTmu,University Claude Bernard Lyon 1,University of Lyon,69622 Villeurbanne,France
| | - Michael Schramme
- 4UPSP ICE 2011-03-101,VetAgro Sup,Veterinary Campus,University Claude Bernard Lyon 1,University of Lyon,69280 Marcy l'Etoile,France
| | - Eric Viguier
- 4UPSP ICE 2011-03-101,VetAgro Sup,Veterinary Campus,University Claude Bernard Lyon 1,University of Lyon,69280 Marcy l'Etoile,France
| | - Thierry Roger
- 4UPSP ICE 2011-03-101,VetAgro Sup,Veterinary Campus,University Claude Bernard Lyon 1,University of Lyon,69280 Marcy l'Etoile,France
| | - Yves Berthier
- 1LaMCoS UMR5259,INSA-Lyon,CNRS,University of Lyon,69621 Villeurbanne,France
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19
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Ruiz A, Suárez M, Martin N, Albericio F, Rodríguez H. Morphological characterization of fullerene-androsterone conjugates. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:374-379. [PMID: 24778962 PMCID: PMC3999864 DOI: 10.3762/bjnano.5.43] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 03/05/2014] [Indexed: 06/03/2023]
Abstract
Here we report on the self-organization characteristics in water of two diastereomer pairs of fullerene-androsterone hybrids that have the hydrophobic C60 appendage in the A and D ring of the androsterone moiety, respectively. The morphology and particle size in aqueous solution were determined by transmission electron microscopy (TEM) and dynamic light scattering (DLS), with satisfactory agreement between both techniques. In general, these fullerene derivatives are shown to organize into spherical nano-scale structures with diameters in the ranges of 10-20 and 30-50 nm, respectively.
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Affiliation(s)
- Alberto Ruiz
- Laboratorio de Síntesis Orgánica, Facultad de Química, Universidad de La Habana, 10400 La Habana, Cuba
| | - Margarita Suárez
- Laboratorio de Síntesis Orgánica, Facultad de Química, Universidad de La Habana, 10400 La Habana, Cuba
| | - Nazario Martin
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid 28040 Madrid, Spain
| | - Fernando Albericio
- Institute for Research in Biomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028-Barcelona, Spain
- Centre on Bioengineering, Biomaterials and Nanomedicine, PCB, 08028-Barcelona, Spain
- Department of Organic Chemistry, University of Barcelona, 08028-Barcelona, Spain
- School of Chemistry, University of KwaZulu-Natal, Durban 400l, South Africa
| | - Hortensia Rodríguez
- Institute for Research in Biomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028-Barcelona, Spain
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20
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Manconi M, Nácher A, Merino V, Merino-Sanjuan M, Manca ML, Mura C, Mura S, Fadda AM, Diez-Sales O. Improving oral bioavailability and pharmacokinetics of liposomal metformin by glycerolphosphate-chitosan microcomplexation. AAPS PharmSciTech 2013; 14:485-96. [PMID: 23471836 DOI: 10.1208/s12249-013-9926-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 01/12/2013] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study was to develop a new delivery system capable of improving bioavailability and controlling release of hydrophilic drugs. Metformin-loaded liposomes were prepared and to improve their stability surface was coated with chitosan cross-linked with the biocompatible β-glycerolphosphate. X-ray diffraction, differential scanning calorimetry, as well as rheological analysis were performed to investigate interactions between chitosan and β-glycerolphosphate molecules. The entrapment of liposomes into the chitosan-β-glycerolphosphate network was assessed by scanning electron microscopy and transmission electron microscopy. Swelling and mucoadhesive properties as well as drug release were evaluated in vitro while the drug oral bioavailability was evaluated in vivo on Wistar rats. Results clearly showed that, compared to control, the proposed microcomplexes led to a 2.5-fold increase of metformin T(max) with a 40% augmentation of the AUC/D value.
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21
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Tashiro S, Kubota R, Kawagoe M, Shionoya M. Palladium- or proton-induced submicro spherical aggregation of macrocyclic amphiphiles in aqueous solution. Dalton Trans 2013; 42:15915-8. [DOI: 10.1039/c3dt51827b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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22
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Zhao Y, Chen G. C60 Fullerene Amphiphiles as Supramolecular Building Blocks for Organized and Well-Defined Nanoscale Objects. FULLERENES AND OTHER CARBON-RICH NANOSTRUCTURES 2013. [DOI: 10.1007/430_2013_130] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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23
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Harano K, Gorgoll RM, Nakamura E. Binding of aromatic molecules in the fullerene-rich interior of a fullerene bilayer vesicle in water. Chem Commun (Camb) 2013; 49:7629-31. [DOI: 10.1039/c3cc44510k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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24
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Homma T, Harano K, Isobe H, Nakamura E. Preparation and properties of vesicles made of nonpolar/polar/nonpolar fullerene amphiphiles. J Am Chem Soc 2011; 133:6364-70. [PMID: 21456527 DOI: 10.1021/ja200498g] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Twenty potassium complexes of penta-[(4-substituted)phenyl][60]fullerene anions were synthesized and examined for their ability to form bilayer vesicles in water. The 4-substituents include alkyl groups ranging from methyl to icosanyl groups and perfluoromethyl, perfluorobutyl, and perfluorooctyl groups. The overall structure of the amphiphiles can be described as a nonpolar/polar/nonpolar (n-p-n') motif as opposed to the usual polar/nonpolar motif of lipid amphiphiles. Despite the hydrophobicity of the fullerene moiety (n-part) and alkyl/perfluoroalkyl chains (n'-part), all compounds except for the one with perfluoromethyl groups were soluble in water because of the centrally located fullerene cyclopentadienide (p-part) and spontaneously formed a vesicle of 25- to 60-nm diameter with a narrow unimodal size distribution. The vesicles are stable upon heating to 90 °C or standing over one year in air, as well as on a solid substrate in air or in vacuum, maintaining their spherical form. The vesicle membrane consists of an interdigitated bilayer of the amphiphile molecules, in which the fullerene n-part is inside and the n'-side is exposed to water. These vesicles, in particular the one bearing icosanyl chains, exhibit the smallest water permeability coefficient ever found for a self-assembled membrane in water.
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Affiliation(s)
- Tatsuya Homma
- Department of Chemistry, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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25
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Homma T, Harano K, Isobe H, Nakamura E. Nanometer-Sized Fluorous Fullerene Vesicles in Water and on Solid Surfaces. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200904659] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Homma T, Harano K, Isobe H, Nakamura E. Nanometer-Sized Fluorous Fullerene Vesicles in Water and on Solid Surfaces. Angew Chem Int Ed Engl 2010; 49:1665-8. [DOI: 10.1002/anie.200904659] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Parera E, Comelles F, Barnadas R, Suades J. New surfactant phosphine ligands and platinum(II) metallosurfactants. Influence of metal coordination on the critical micelle concentration and aggregation properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:743-751. [PMID: 20067304 DOI: 10.1021/la902459f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We have prepared the first platinum(II) metallosurfactants from a new family of linear surfactant phosphines Ph(2)P(CH(2))(n)SO(3)Na {1 (n = 2), 2 (n = 6), and 3 (n = 10)}, which were synthesized by reaction between the halosulfonates X(CH(2))(n)SO(3)Na and sodium diphenylphosphide. The metallosurfactants cis-[PtCl(2)L(2)] (L = 1-3) were obtained after reaction between the phosphines and PtCl(2) in dimethylsulfoxide. All compounds were fully characterized by the usual methods {NMR ((1)H, (13)C, (31)P, (195)Pt), IR, MS-ESI and HRMS}. By exploring the surfactant properties of phosphines 1-3 and their respective platinum metallosurfactants cis-[PtCl(2)L(2)] (L = 1-3) through surface tension measurements, dynamic light scattering spectroscopy, and cryo-TEM microscopy, we were able to analyze the influence of the metal coordination on the critical micelle concentration (cmc) and the aggregation properties. The cmc values of platinum metallosurfactants were considerably lower than those obtained for the free phosphines 1-3. This behavior could be understood by an analogy between the structure of cis-[PtCl(2)L(2)] complexes and bolaform surfactants. The calculated values of area per molecule also showed different tendencies between 1-3 and cis-[PtCl(2)L(2)] complexes, which could be explained on the basis of the possible conformations of these compounds in the air-water interface. The study of aggregates by dynamic light scattering spectroscopy and cryo-TEM microscopy showed the formation of spherical disperse medium size vesicles in all cases. However, substantial differences were observed between the three free phosphines (the population of micellar aggregates increased with long chain length) and also between phosphines and their respective metallosurfactants.
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Affiliation(s)
- Elisabet Parera
- Departament de Química, Universitat Autònoma de Barcelona, Edifici C, 08193 Bellaterra, Spain
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28
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29
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You LY, Wang GT, Jiang XK, Li ZT. Hydrogen bonded aromatic hydrazide foldamers for the self-assembly of vesicles and gels. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.07.097] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Zhu Y, Tan Y, Du X, Wang H, Piao J. Conformation and Aggregation Behavior of Polyelectrolyte with Primary Amino Pendant Groups in Water or THF/Water Binary Solvent Mixture and Their Effect on the Morphology of AOT Vesicles in Aqueous Media. J DISPER SCI TECHNOL 2009. [DOI: 10.1080/01932690802701564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Synthesis and aggregation properties of amphiphilic mono and bisadducts of fullerene in aqueous solution. CHINESE CHEM LETT 2008. [DOI: 10.1016/j.cclet.2008.06.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Maeda R, Noiri E, Isobe H, Homma T, Tanaka T, Negishi K, Doi K, Fujita T, Nakamura E. A water-soluble fullerene vesicle alleviates angiotensin II-induced oxidative stress in human umbilical venous endothelial cells. Hypertens Res 2008; 31:141-51. [PMID: 18360029 DOI: 10.1291/hypres.31.141] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A water-soluble fullerene vesicle based on the Buckminsterfullerene molecule (Ph(5)C(60)K, denoted as PhK) was explored to determine its effects on anti-oxidation of human umbilical endothelial cells (HUVEC) exposed to exogenous and endogenous reactive oxygen species (ROS). Hydrogen peroxide 0.05-0.25 mmol/L remarkably reduced the cellular viability of HUVEC. This reduction in viability was markedly improved when PhK 0.01-1 micromol/L was added simultaneously to the culture medium. The reduction of viability in HUVEC induced by angiotensin II (AII) 10(-9) to 10(-7) mol/L was improved by pretreatment with PhK 0.1 or 10 micromol/L 12 h before AII stimulation. The ROS indicator CM-H(2)DCFDA demonstrated the efficacy of PhK 1 or 10 micromol/L in decreasing AII-induced ROS production to the level induced by the AII receptor blocker RNH-6470 20 micromol/L. The AII-induced peroxynitrite formation, as gauged using hydroxyphenyl fluorescein as a probe, was alleviated significantly by either pretreatment with PhK 0.1 or 1 micromol/L. Electron microscopy revealed intracellular localization of PhK in HUVEC after 12 h incubation. The PhK decreased the AII-induced apoptosis and lipid peroxidation processes as revealed by hexanoyl-lysine adduct formation. These observations show that the PhK water-soluble fullerene vesicle is promising as a compound controlling not only exogenous ROS, but also endogenous AII-mediated pathophysiological conditions.
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Affiliation(s)
- Rui Maeda
- Center for NanoBio Integration, The University of Tokyo, Japan
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33
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Li H, Liu C, Hao J, Hirsch A. Effect of addition of dendritic C60 amphiphiles on the structure of cationic surfactant solutions. J Colloid Interface Sci 2008; 320:307-14. [DOI: 10.1016/j.jcis.2007.12.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Revised: 12/24/2007] [Accepted: 12/27/2007] [Indexed: 11/27/2022]
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34
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van Hell AJ, Costa CICA, Flesch FM, Sutter M, Jiskoot W, Crommelin DJA, Hennink WE, Mastrobattista E. Self-assembly of recombinant amphiphilic oligopeptides into vesicles. Biomacromolecules 2007; 8:2753-61. [PMID: 17696394 DOI: 10.1021/bm0704267] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The aim of the present study was to design amphiphilic oligopeptides that can self-assemble into vesicular structures. The ratio of hydrophilic to hydrophobic block length was varied, and peptides were designed to have a hydrophobic tail in which the bulkiness of the amino acid side groups increases toward the hydrophilic domain (Ac-Ala-Ala-Val-Val-Leu-Leu-Leu-Trp-Glu(2/7)-COOH). These peptides were recombinantly produced in bacteria as an alternative to solid-phase synthesis. We demonstrate with different complementary techniques (dynamic and static light scattering, tryptophan fluorescence anisotropy, and electron microscopy) that these amphiphilic peptides spontaneously form vesicles with a radius of approximately 60 nm and a low polydispersity when dispersed in aqueous solution at neutral pH. Morphology and size of the vesicles were relatively insensitive to the variations in hydrophilic block length. Exposure to acidic pH resulted in formation of visible aggregates, which could be fully reversed to vesicles upon pH neutralization. In addition, it was demonstrated that water-soluble molecules can be entrapped inside these peptide vesicles. Such peptide vesicles may find applications as biodegradable drug delivery systems with a pH-dependent release profile.
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Affiliation(s)
- Albert J van Hell
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
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35
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Kato H, Böttcher C, Hirsch A. Sugar Balls: Synthesis and Supramolecular Assembly of [60]Fullerene Glycoconjugates. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700179] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Murakami H, Nakanishi T, Morita M, Taniguchi N, Nakashima N. Self-Assembled Aggregates and Molecular Bilayer Films of a Double-Chain Fullerene Lipid: Structure and Electrochemistry. Chem Asian J 2006; 1:860-7. [PMID: 17441129 DOI: 10.1002/asia.200600229] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The self-aggregation behavior of C60 fullerenes that bear two octadecyl chains (lipid 1) as well as the structures and electrochemical properties of cast films of 1 are described. We also examined the self-aggregation behavior in organic solvents of three previously reported compounds: C60 with three each of hexadecyl (lipid 2), tetradecyl (lipid 3), or dodecyl (lipid 4) chains. The fullerene lipids in alcohols spontaneously formed spherical aggregates, whose diameters are related to the alkyl-chain lengths, concentrations of the fullerene lipids, and the solvent polarity. The morphologies of the aggregates showed temperature dependence. Cast films of 1 formed multimolecular bilayer structures that undergo a phase transition typical of lipid bilayer membranes. The electrochemistry of cast films of 1 on an electrode in aqueous medium exhibits temperature dependence.
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Affiliation(s)
- Hiroto Murakami
- Department of Science and Technology, Graduate School of Materials Science, Nagasaki University, Nagasaki 852-8521, Japan
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37
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Burger C, Chu B. Functional nanofibrous scaffolds for bone reconstruction. Colloids Surf B Biointerfaces 2006; 56:134-41. [PMID: 17113762 DOI: 10.1016/j.colsurfb.2006.09.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2006] [Accepted: 09/26/2006] [Indexed: 11/19/2022]
Abstract
DNA compaction, encapsulation and stabilization strategies as well as a scheme for DNA chain stabilization by complex formation with modified fullerenes for gene delivery are discussed. DNA can be compacted in organic solvents and encapsulated with amphiphilic triblock copolymers. The rapid removal of the solvent mixtures by electrospinning together with a biodegradable polymer preserves the globular DNA conformation and can be used for bone reconstruction applications. Cationic fullerene surfactants can decorate and stabilize DNA coils in aqueous solution. The complex formation process is studied by static light scattering and analyzed in detail.
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Affiliation(s)
- Christian Burger
- Chemistry Department, Stony Brook University, Stony Brook, NY 11794-3400, USA
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38
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Higashi N, Shosu T, Koga T, Niwa M, Tanigawa T. pH-responsive, self-assembling nanoparticle from a fullerene-tagged poly(l-glutamic acid) and its superoxide dismutase mimetic property. J Colloid Interface Sci 2006; 298:118-23. [PMID: 16412454 DOI: 10.1016/j.jcis.2005.12.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2005] [Revised: 12/09/2005] [Accepted: 12/09/2005] [Indexed: 11/23/2022]
Abstract
In this study, we describe the fabrication of novel fullerene-containing peptide-nanoparticles through self-assembly. A water-soluble, poly(l-glutamic acid)-attached fullerene was newly synthesized and the conformation and self-assembling property in water were examined by using circular dichroism, FTIR, UV, atomic force microscopy, and dynamic light scattering measurements. In the lower pH region (<6.8), the fullerene peptide self-assembles into nanoparticles that are ca. 100-200 nm in diameter. These nanoparticles are rich in alpha-helices, and stacking interaction of fullerene moieties contributes to the stability of the high-order structure. In addition, these particle sizes can be easily controlled by changing pH that results in causing the conformational transition of PLGA segment. Finally, the fullerene-containing nanoparticle is confirmed to be capable of removing the biologically important superoxide radical in comparison with the superoxide dismutase.
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Affiliation(s)
- Nobuyuki Higashi
- Department of Molecular Science & Technology, Faculty of Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan.
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Li Y, Li X, Li Y, Liu H, Wang S, Gan H, Li J, Wang N, He X, Zhu D. Controlled Self-Assembly Behavior of an Amphiphilic Bisporphyrin–Bipyridinium–Palladium Complex: From Multibilayer Vesicles to Hollow Capsules. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600554] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Li Y, Li X, Li Y, Liu H, Wang S, Gan H, Li J, Wang N, He X, Zhu D. Controlled Self-Assembly Behavior of an Amphiphilic Bisporphyrin–Bipyridinium–Palladium Complex: From Multibilayer Vesicles to Hollow Capsules. Angew Chem Int Ed Engl 2006; 45:3639-43. [PMID: 16642540 DOI: 10.1002/anie.200600554] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yongjun Li
- CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, PR China
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Radomski A, Jurasz P, Alonso-Escolano D, Drews M, Morandi M, Malinski T, Radomski MW. Nanoparticle-induced platelet aggregation and vascular thrombosis. Br J Pharmacol 2006; 146:882-93. [PMID: 16158070 PMCID: PMC1751219 DOI: 10.1038/sj.bjp.0706386] [Citation(s) in RCA: 350] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Ever increasing use of engineered carbon nanoparticles in nanopharmacology for selective imaging, sensor or drug delivery systems has increased the potential for blood platelet-nanoparticle interactions. We studied the effects of engineered and combustion-derived carbon nanoparticles on human platelet aggregation in vitro and rat vascular thrombosis in vivo. Multiplewall (MWNT), singlewall (SWNT) nanotubes, C60 fullerenes (C60CS) and mixed carbon nanoparticles (MCN) (0.2-300 microg ml(-1)) were investigated. Nanoparticles were compared with standard urban particulate matter (SRM1648, average size 1.4 microm). Platelet function was studied using lumi aggregometry, phase-contrast, immunofluorescence and transmission electron microscopy, flow cytometry, zymography and pharmacological inhibitors of platelet aggregation. Vascular thrombosis was induced by ferric chloride and the rate of thrombosis was measured, in the presence of carbon particles, with an ultrasonic flow probe. Carbon particles, except C60CS, stimulated platelet aggregation (MCN>or=SWNT>MWNT>SRM1648) and accelerated the rate of vascular thrombosis in rat carotid arteries with a similar rank order of efficacy. All particles resulted in upregulation of GPIIb/IIIa in platelets. In contrast, particles differentially affected the release of platelet granules, as well as the activity of thromboxane-, ADP, matrix metalloproteinase- and protein kinase C-dependent pathways of aggregation. Furthermore, particle-induced aggregation was inhibited by prostacyclin and S-nitroso-glutathione, but not by aspirin. Thus, some carbon nanoparticles and microparticles have the ability to activate platelets and enhance vascular thrombosis. These observations are of importance for the pharmacological use of carbon nanoparticles and pathology of urban particulate matter.
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Affiliation(s)
- Anna Radomski
- Centre for Vascular Biology, Institute of Molecular Medicine for the Prevention of Human Diseases, University of Texas Health Science Centre at Houston, 6770 Bertner Ave, Houston, TX 77025, USA
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Ikeda A, Irisa T, Hamano T, Kitahashi T, Sasaki Y, Hashizume M, Kikuchi JI, Konishi T, Shinkai S. Control of self-aggregation of fullerenes by connection with calix[4]arene: solvent- and guest-effects to particle size. Org Biomol Chem 2006; 4:519-23. [PMID: 16446810 DOI: 10.1039/b513123e] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new molecular design of fullerene derivatives exhibiting trigger-responsive self-aggregation in organic solvents has been established. Calix[4]arene was covalently connected with fullerene in order to apply host-guest interaction to the aggregation control. The self-assembly behaviour was studied in organic solvents by UV-vis absorption spectroscopy, dynamic light scattering and transmission electron microscopy. Results show that the bisfullerene formed self-aggregations with a low polydispersity index due to the fullerenes' tendency to aggregate in polar organic solvents. Furthermore, the aggregate sizes can be changed readily by solvent composition and the addition of guest cations. Especially, disaggregation of the bisfullerene was induced by addition of LiClO4 or NaClO4.
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Affiliation(s)
- Atsushi Ikeda
- Graduate School of Materials Science, Nara Institute of Science and Technology, Takayama, Ikoma, Nara, 630-0192, Japan.
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Verma S, Padmawar PA, Hauck T, Canteenwala T, Chiang LY, Pritzker KPH. Synthesis of Water‐Soluble Highly Two‐Photon Responsive [60]Fullerene‐Diphenylaminofluorene Chromophore Dyads. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2005. [DOI: 10.1080/10601320500229038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ying Q, Zhang J, Liang D, Nakanishi W, Isobe H, Nakamura E, Chu B. Fractal behavior of functionalized fullerene aggregates. I. Aggregation of two-handed tetraaminofullerene with DNA. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:9824-31. [PMID: 16229498 DOI: 10.1021/la050557y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
In tris-buffered saline (TBS) with a trace of dimethylformamide (DMF), the homoaggregation process of a functionalized fullerene, the two-handed tetraaminofullerene (TH), and the heteroaggregation process (complex formation) of TH with DNA (pGL3-control plasmid) were studied dynamically by using a combination of static and dynamic laser light scattering measurements. Fractal behavior was investigated in the aggregation process of both TH homoaggregates and TH-DNA heteroaggregates. The stability of aggregates in solution depends on the molar concentration ratio R(M), defined as the molar ratio of moles of TH to moles of the DNA base pair. Higher R(M) values resulted in lower aggregate stability. The transition of the fractal dimension (Df) in TH homoaggregation by rapidly mixing 3.78 microM TH with an equal volume of the blank buffer was found to vary from a value of 1.46 to 2.02. Dynamic light scattering results revealed that, in the aggregation process, the change in the size distribution of aggregates with time could be related to a Df transition. In the Df transition region, the size distribution of homoaggregates displayed a drastic change from a single-mode distribution to a bimodal distribution, which clearly suggested a restructuring process with the formation of large aggregates. When the aggregation process finally reached equilibrium, Df = 2.02, the size of the homoaggregates had a single mode but a broad distribution. However, TH-DNA heteroaggregation showed a Df transition from 1.58 to 1.7, but over a shorter time range of less than 5 min. Then, the Df value fluctuated in the range of 1.7 and finally reached an equilibrium value of Df approximately 1.78, which was independent of molar concentration. There are two main action forces involved in the heteroaggregation process: van der Waals forces and attractive electrostatic forces, with the latter one being stronger and faster than that of the former. Therefore, a two-step action could occur in the heteroaggregation process. In the beginning of mixing, the attractive electrostatic forces dictated the aggregation process, and then van der Waals forces also got involved in the entire aggregation process. By using an initial concentration of 3.78 microM each and R(M) = 1, TH-DNA heteroaggregates showed more stable solution behavior than the homoaggregates. The lower Df value of the heteroaggregates could be related to a looser compact structure. Results from scanning electron microscopy (SEM) also disclosed the different textures between TH homoaggregates and TH-DNA heteroaggregates; the former had a more dense packing than the latter one.
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Affiliation(s)
- Qicong Ying
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, USA
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Kato H, Kaneta N, Nii S, Kobayashi K, Fukui N, Shinohara H, Nishida Y. Preparation and Supramolecular Properties of Unadulterated Glycosyl Liposomes from a Bis(α-D-mannopyranosyl)[60]Fullerene Conjugate. Chem Biodivers 2005; 2:1232-41. [PMID: 17193205 DOI: 10.1002/cbdv.200590093] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The bis(alpha-D-mannopyranosyl)-[60]fullerene conjugate 3 was prepared by thermal coupling of C60 and either 2-azidoethyl 2,3,4,6-tetra-O-acetyl- or 2,3;4,6-di-O-isopropylidene-alpha-D-mannopyranoside (Scheme). Compound 3 was found to readily self-assemble. Dynamic-light-scattering (DLS) and atomic-force microscopy (AFM) experiments supported that the amphiphilic compound gives rise to nano-sized supramolecular structures during sugar deprotection (Ac-group removal) performed in MeOH/CH2Cl2 solution. Encapsulation studies with an aqueous suspension of 3 showed that the self-assembling structure envelopes Ba2+ and the fluorescent dye Acridine Red during its formation, which indicates that it resembles a bilayer vesicle or an unadulterated liposome with an inner hollow space. In addition to this notable property, the unique molecular geometry of the spatially arranged mannosyl surface residues of 3 gives rise to strong binding of the carbohydrate-recognizing lectin Con A. Hence, the polar amphiphilic end of 3 mimics the structure of 3,6-branched tri-alpha-D-mannoside (6; Fig. 3), a natural ligand of the Con A protein.
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Affiliation(s)
- Haruhito Kato
- Molecular Design & Engineering, Graduate School of Engineering, Nagoya University Chikusa-ku, Nagoya 464-8603, Japan
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Matsuo Y, Nakamura E. Syntheses, Structure, and Derivatization of Potassium Complexes of Penta(organo)[60]fullerene-Monoanion, -Dianion, and -Trianion into Hepta- and Octa(organo)fullerenes. J Am Chem Soc 2005; 127:8457-66. [PMID: 15941280 DOI: 10.1021/ja050318x] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two-electron reduction of penta(organo)[60]fullerenes C(60)Ar(5)H (Ar = Ph and biphenyl) by potassium/mercury amalgam afforded potassium complexes of the corresponding open-shell radical dianions [K+(thf)n]2[C60Ar5(2-.)]. These compounds were characterized by UV-visible-near-IR and electron spin resonance spectroscopy in solution. Anaerobic crystallization of [K+(thf)n]2[C60(biphenyl)(5)(2-.)] that exists largely as a monomer in solution gave black crystals of its dimer [K+(thf)3]4[(biphenyl)5C60-C60(biphenyl)5(4-)], in which the two fullerene units are connected by a C-C single bond [1.577(11) A] as determined by X-ray diffraction. Three-electron reduction of C60Ar5H with metallic potassium gave a black-green trianion [K+(thf)n]3[C60Ar5(3-)]. The reaction of the trianion with an alkyl halide RBr (R = PhCH(2) and Ph(2)CH) regioselectively afforded a hepta-organofullerene C60Ar5R2H, from which a potassium complex [K+(thf)n][C60(biphenyl)5(CH2Ph)(2)(-)] and a palladium complex Pd[C60(biphenyl)5(CH2Ph)2](pi-methallyl) as well as octa-organofullerene compounds C60(biphenyl)5(CH2Ph)3H2 and Ru[C60(biphenyl)5(C2Ph)3H]Cp were synthesized. These compounds possess a dibenzo-fused corannulene pi-electron conjugated system and are luminescent.
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Affiliation(s)
- Yutaka Matsuo
- Nakamura Functional Carbon Cluster Project, ERATO, Japan Science and Technology Agency and Department of Chemistry, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Verma S, Hauck T, El-Khouly ME, Padmawar PA, Canteenwala T, Pritzker K, Ito O, Chiang LY. Self-assembled photoresponsive amphiphilic diphenylaminofluorene-C60 conjugate vesicles in aqueous solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:3267-3272. [PMID: 15807563 DOI: 10.1021/la047082f] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Water-soluble oligo(ethylene glycolated) derivatives of two-photon absorptive diphenylaminofluorenocarbonyl-methano[60]fullerene, denoted as C60(>DPAF-EG6), were synthesized with their molecular self-assembly characteristics in H2O studied. The formation of nano- to submicron-sized spherical hollow vesicles with a shell width of 15-20 nm was observed by transmission electron microscopy (TEM) micrographs. This shell width fits approximately with the length of a disordered bilayer-like molecular packing of C60(>DPAF-EG6), arising from strong intermolecular hydrophobic interactions of fullerene cages. Photoinduced intramolecular charge separation followed by charge recombination on the nanosecond time scale, from the DPAF moiety to the C60 cage in the vesicle structure, was detected via transient spectroscopic measurements.
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Affiliation(s)
- Sarika Verma
- Department of Chemistry, Institute of Nanoscience and Engineering, University of Massachusetts, Lowell, Massachusetts 01854, USA
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Liu, González YI, Danino D, Kaler EW. Polymerization of Wormlike Micelles Induced by Hydrotropic Salt. Macromolecules 2005. [DOI: 10.1021/ma047646m] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Liu
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui Province, P.R. China; Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716; and Department of Biotechnology and Food Engineering, Technion−Israel Institute of Technology, Haifa, Israel 32000
| | - Yamaira I. González
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui Province, P.R. China; Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716; and Department of Biotechnology and Food Engineering, Technion−Israel Institute of Technology, Haifa, Israel 32000
| | - Dganit Danino
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui Province, P.R. China; Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716; and Department of Biotechnology and Food Engineering, Technion−Israel Institute of Technology, Haifa, Israel 32000
| | - Eric W. Kaler
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui Province, P.R. China; Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716; and Department of Biotechnology and Food Engineering, Technion−Israel Institute of Technology, Haifa, Israel 32000
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