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Liu Y, Wang R, Russell CK, Jia P, Yao Y, Huang W, Radosz M, Gasem KA, Adidharma H, Fan M. Mechanisms for direct methane conversion to oxygenates at low temperature. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Ye RP, Lin L, Wang LC, Ding D, Zhou Z, Pan P, Xu Z, Liu J, Adidharma H, Radosz M, Fan M, Yao YG. Perspectives on the Active Sites and Catalyst Design for the Hydrogenation of Dimethyl Oxalate. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05477] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Run-Ping Ye
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
- Departments of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, People’s Republic of China
| | - Ling Lin
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
| | - Lu-Cun Wang
- Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | - Dong Ding
- Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | - Zhangfeng Zhou
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
| | - Pengbin Pan
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
| | - Zhenghe Xu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, People’s Republic of China
| | - Jian Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, People’s Republic of China
- DICP-Surrey Joint Centre for Future Materials, Department of Chemical and Process Engineering, and Advanced Technology Institute, University of Surrey, Guilford, Surrey GU2 7XH, U.K
| | - Hertanto Adidharma
- Departments of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Maciej Radosz
- Departments of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Maohong Fan
- Departments of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
- School of Energy Resources, University of Wyoming, Laramie, Wyoming 82071, United States
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Mason
Building, 790 Atlantic Drive, Atlanta, Georgia 30332, United States
| | - Yuan-Gen Yao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
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3
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Liu S, Ma R, Hu X, Wang L, Wang X, Radosz M, Fan M. CO2 Adsorption on Hazelnut-Shell-Derived Nitrogen-Doped Porous Carbons Synthesized by Single-Step Sodium Amide Activation. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02127] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | | | | | | | - Maciej Radosz
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Maohong Fan
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
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4
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Zhang R, Wen G, Adidharma H, Russell AG, Wang B, Radosz M, Fan M. C2 Oxygenate Synthesis via Fischer–Tropsch Synthesis on Co2C and Co/Co2C Interface Catalysts: How To Control the Catalyst Crystal Facet for Optimal Selectivity. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02800] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Riguang Zhang
- Key
Laboratory of Coal Science and Technology of Ministry of Education
and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, People’s Republic of China
- Department
of Chemical Engineering and Department of Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Guangxiang Wen
- Key
Laboratory of Coal Science and Technology of Ministry of Education
and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, People’s Republic of China
| | - Hertanto Adidharma
- Department
of Chemical Engineering and Department of Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Armistead G. Russell
- School
of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Baojun Wang
- Key
Laboratory of Coal Science and Technology of Ministry of Education
and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, People’s Republic of China
| | - Maciej Radosz
- Department
of Chemical Engineering and Department of Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Maohong Fan
- Department
of Chemical Engineering and Department of Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
- School
of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- School
of Energy Resources, University of Wyoming, Laramie, Wyoming 82071, United States
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5
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Sun Q, Ma X, Zhang B, Zhou Z, Jin E, Shen Y, Van Kirk EA, Murdoch WJ, Radosz M, Sun W. Fabrication of dendrimer-releasing lipidic nanoassembly for cancer drug delivery. Biomater Sci 2016; 4:958-69. [DOI: 10.1039/c6bm00189k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Dendrimer/lipid nanoassemblies could intracellularly or extracellularly release small dendrimers to facilitate cancer drug tumor penetration.
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Affiliation(s)
- Qihang Sun
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Xinpeng Ma
- Department of Chemical and Petroleum Engineering
- Soft Materials Laboratory
- University of Wyoming
- Laramie
- USA
| | - Bo Zhang
- Department of Chemical and Petroleum Engineering
- Soft Materials Laboratory
- University of Wyoming
- Laramie
- USA
| | - Zhuxian Zhou
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Erlei Jin
- Department of Chemical and Petroleum Engineering
- Soft Materials Laboratory
- University of Wyoming
- Laramie
- USA
| | - Youqing Shen
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | | | | | - Maciej Radosz
- Department of Chemical and Petroleum Engineering
- Soft Materials Laboratory
- University of Wyoming
- Laramie
- USA
| | - Weilin Sun
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
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6
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Zhang B, Ma XP, Sui MH, Van Kirk E, Murdoch WJ, Radosz M, Lin NM, Shen YQ. Guanidinoamidized linear polyethyleneimine for gene delivery. Chin J Polym Sci 2015. [DOI: 10.1007/s10118-015-1644-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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7
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Sun Q, Sun X, Ma X, Zhou Z, Jin E, Zhang B, Shen Y, Van Kirk EA, Murdoch WJ, Lott JR, Lodge TP, Radosz M, Zhao Y. Integration of nanoassembly functions for an effective delivery cascade for cancer drugs. Adv Mater 2014; 26:7615-21. [PMID: 25328159 DOI: 10.1002/adma.201401554] [Citation(s) in RCA: 252] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Revised: 09/03/2014] [Indexed: 05/18/2023]
Abstract
A "cluster-bomb"-like lipid-dendrimer nanoassembly synergizes the functions of its components and thereby efficiently accomplishes the drug delivery cascade for high efficacy in treating cancer. The nanoassembly successfully circulates in the blood and accumulates in the tumor. Once in the tumor, it releases small dendrimers that act like "bomblets", enabling tumor penetration, cell internalization, and drug release.
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Affiliation(s)
- Qihang Sun
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China, 310027; Department of Chemical Engineering, University of Wyoming, Laramie, WY, USA, 82071
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8
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Affiliation(s)
- Qihang Sun
- Department of Chemical and Petroleum Engineering, Soft Materials Laboratory, University of WyomingLaramieWY 82071USA
| | - Maciej Radosz
- Department of Chemical and Petroleum Engineering, Soft Materials Laboratory, University of WyomingLaramieWY 82071USA
| | - Youqing Shen
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang UniversityHangzhou 310027P. R.
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9
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Affiliation(s)
- Qihang Sun
- Department of Chemical and Petroleum Engineering, Soft Materials Laboratory, University of WyomingLaramieWY
| | - Jinqiang Wang
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang UniversityHangzhou 310027P. R. China
| | - Maciej Radosz
- Department of Chemical and Petroleum Engineering, Soft Materials Laboratory, University of WyomingLaramieWY
| | - Youqing Shen
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang UniversityHangzhou 310027P. R. China
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10
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Jin E, Zhang B, Sun X, Zhou Z, Ma X, Sun Q, Tang J, Shen Y, Van Kirk E, Murdoch WJ, Radosz M. Acid-Active Cell-Penetrating Peptides for in Vivo Tumor-Targeted Drug Delivery. J Am Chem Soc 2013; 135:933-40. [DOI: 10.1021/ja311180x] [Citation(s) in RCA: 271] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | | | - Xuanrong Sun
- Center for Bionanoengineering
and State Key Laboratory for Chemical Engineering, Department of Chemical
and Biological Engineering, Zhejiang University, Hangzhou, China 310027
| | | | | | | | - Jianbin Tang
- Center for Bionanoengineering
and State Key Laboratory for Chemical Engineering, Department of Chemical
and Biological Engineering, Zhejiang University, Hangzhou, China 310027
| | - Youqing Shen
- Center for Bionanoengineering
and State Key Laboratory for Chemical Engineering, Department of Chemical
and Biological Engineering, Zhejiang University, Hangzhou, China 310027
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11
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Sun Q, Radosz M, Shen Y. Challenges in design of translational nanocarriers. J Control Release 2012; 164:156-69. [DOI: 10.1016/j.jconrel.2012.05.042] [Citation(s) in RCA: 169] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 05/24/2012] [Accepted: 05/26/2012] [Indexed: 01/21/2023]
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12
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Zhang B, Ma X, Murdoch W, Radosz M, Shen Y. Bioreducible poly(amido amine)s with different branching degrees as gene delivery vectors. Biotechnol Bioeng 2012; 110:990-8. [PMID: 23097245 DOI: 10.1002/bit.24772] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 10/15/2012] [Accepted: 10/18/2012] [Indexed: 12/14/2022]
Abstract
Based on the knowledge that cationic polymers with different topographical structures behave differently in gene transfection process, herein, we synthesized three biodegradable poly(amido amine)s (PAAs) with the same repeating units and molecular weights except for degree of branching: linear PAA (LPAA), low-branched PAA (LBPAA), and high-branched PAA (HBPAA). We found that LBPAA could more effectively compact pDNA into positively charged nanoparticles than both HBPAA and LPAA. LBPAA polyplexes had the highest transfection efficiency among the three PAA polyplexes, and the difference in transfection efficiency is mainly attributed to the endocytosis rate. The cytotoxicity of PAAs was negligible at the transfection doses, probably due to the degradable disulfide bonds. Therefore, we could use branching as a parameter to simply tune a polymer's cellular uptake behavior and transfection efficiency.
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Affiliation(s)
- Bo Zhang
- Center for Bionanoengineering and the State Key Laboratory for Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
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13
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Tyrrell ZL, Shen Y, Radosz M. Multilayered Nanoparticles for Controlled Release of Paclitaxel Formed by Near-Critical Micellization of Triblock Copolymers. Macromolecules 2012. [DOI: 10.1021/ma300271k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zachary L. Tyrrell
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Youqing Shen
- Center for Bionanoengineering
and the State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, China 310027
| | - Maciej Radosz
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
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14
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Hu X, Radosz M, Cychosz KA, Thommes M. CO2-filling capacity and selectivity of carbon nanopores: synthesis, texture, and pore-size distribution from quenched-solid density functional theory (QSDFT). Environ Sci Technol 2011; 45:7068-74. [PMID: 21721529 DOI: 10.1021/es200782s] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Porous carbons synthesized by KOH activation of petroleum coke can have high surface areas, over 3000 m(2)/g, and high CO(2) sorption capacity, over 15 wt % at 1 bar. This makes them attractive sorbents for carbon capture from combustion flue gas. Quenched solid density functional theory (QSDFT) analysis of high-resolution nitrogen-sorption data for such materials leads to the conclusion that it is the pores smaller than 1 nm in diameter that fill with high-density CO(2) at atmospheric pressure. Upon increasing pressure, larger and larger pores are filled, up to about 4 nm at 10 bar. An ideal CO(2)/N(2) selectivity of such carbon materials tends to decrease substantially upon increasing pressure, for example, from about 8-10 at 1 bar to about 4-5 at 10 bar. All in all, this work confirms the robust CO(2)-filling properties of porous carbon sorbents, their low-pressure selectivity advantages, and points to the critical role of <1 nm pores that can be controlled with activation conditions.
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Affiliation(s)
- Xin Hu
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China.
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15
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Dutcher B, Adidharma H, Radosz M. Carbon Filter Process for Flue-Gas Carbon Capture on Carbonaceous Sorbents: Steam-Aided Vacuum Swing Adsorption Option. Ind Eng Chem Res 2011. [DOI: 10.1021/ie102522r] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bryce Dutcher
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Hertanto Adidharma
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Maciej Radosz
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
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Winoto W, Radosz M. Decompression-Induced Encapsulation of Core-philic Solutes by Block Copolymer Micelles in Compressible Solutions: Polystyrene and Polystyrene- block-polybutadiene in Near-Critical Propane. Macromolecules 2011. [DOI: 10.1021/ma2006188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Winoto Winoto
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295, United States
| | - Maciej Radosz
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295, United States
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Green J, Tyrrell Z, Radosz M, Hong K, Mays JW. Nanostructure of Solid Precipitates Obtained by Expansion of Polystyrene-block-Polybutadiene Solutions in Near Critical Propane: Block Ratio and Micellar Solution Effects. J Phys Chem C Nanomater Interfaces 2011; 115:9465-9470. [PMID: 21686070 PMCID: PMC3113631 DOI: 10.1021/jp201762e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In contrast to incompressible liquid solutions, compressible near-critical solutions of block copolymers allow for controlling rapid structure transformations with pressure alone. For example, when dissolved in near-critical propane, polystyrene-block-polybutadiene can form a random molecular solution at high pressures, a micellar solution at moderate pressures, and a solvent-free precipitate at low pressures. In contrast to the unstructured virgin copolymer, such a propane-treated precipitate rapidly self assembles toward structures characteristic of equilibrated block copolymers, such as lamellae, spheres or cylinders, which depend on the block ratio rather than on the decompression rate or temperature, at least within the rate and temperature ranges investigated in this work. At lower temperatures, however, say below 40 °C, glass transition of the styrene-butadiene diblocks can inhibit independent structure formation while crystallization of their hydrogenated-butadiene analogs can preserve the micellar-solution structure.
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Affiliation(s)
- Jade Green
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
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Shen Y, Zhou Z, Sui M, Tang J, Xu P, Kirk EAV, Murdoch WJ, Fan M, Radosz M. Charge-reversal polyamidoamine dendrimer for cascade nuclear drug delivery. Nanomedicine (Lond) 2010; 5:1205-17. [DOI: 10.2217/nnm.10.86] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Aims: Polyamidoamine (PAMAM) dendrimers with primary amine termini have been extensively explored as drug and gene carriers owing to their unique properties, but their amine-carried cationic charges cause nonspecific cellular uptakes, systemic toxicity and other severe problems in in vivo applications. Method: In this article, we report a charge-reversal approach that latently deactivates PAMAM’s primary amines to negatively charged acid-labile amides in order to inhibit its nonspecific interaction with cells, but regenerates the active PAMAM once in acidic environments. Results: A cascade cancer cell nuclear drug delivery was achieved using the latently amidized PAMAM as the carrier conjugated with folic acid as the targeting group and a DNA-toxin drug camptothecin. The conjugate had low nonspecific interactions with cells, but easily entered cancer cells overexpressing folate receptors via receptor-mediated endocytosis. Subsequently, the endocytosed conjugate was transferred to acidic lysosomes, wherein the active PAMAM carrier was regenerated, escaped from the lysosome and then entered the nucleus for drug release. Conclusion: This reversible deactivation/activation makes PAMAM dendrimers useful nanocarriers for in vivo cancer cell nuclear-targeted drug delivery.
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Affiliation(s)
| | - Zhuxian Zhou
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
| | - Meihua Sui
- Center for Bionanoengineering & Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jianbin Tang
- Center for Bionanoengineering & Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Peisheng Xu
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
- College of Pharmacy, University of South Carolina, Columbia, SC 29208, USA
| | - Edward A Van Kirk
- Department of Animal Science, University of Wyoming, Laramie, WY, 82071, USA
| | - William J Murdoch
- Department of Animal Science, University of Wyoming, Laramie, WY, 82071, USA
| | - Maohong Fan
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
| | - Maciej Radosz
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
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Tang H, Murphy CJ, Zhang B, Shen Y, Van Kirk EA, Murdoch WJ, Radosz M. Curcumin polymers as anticancer conjugates. Biomaterials 2010; 31:7139-49. [PMID: 20591475 DOI: 10.1016/j.biomaterials.2010.06.007] [Citation(s) in RCA: 135] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2010] [Accepted: 06/01/2010] [Indexed: 10/19/2022]
Abstract
Curcumin has been shown highly cytotoxic towards various cancer cell lines, but its water-insolubility and instability make its bioavailability exceedingly low and thus it generally demonstrates low anticancer activity in in vivo tests. Herein, we report a novel type of polymer-drug conjugates--the high molecular weight curcumin polymers (polycurcumins) made by condensation polymerization of curcumin. The polycurcumins as backbone-type conjugates have advantages of high drug loading efficiency, fixed drug loading contents, stabilized curcumin in their backbones, and tailored water-solubility. The polycurcumins may have many potential applications and their antitumor activities are investigated in this work. The polycurcumins are cytotoxic to cancer cells, but a polyacetal-based polycurcumin (PCurc 8) is highly cytotoxic to SKOV-3, OVCAR-3 ovarian cancers, and MCF-7 breast cancer cell lines. It can be quickly taken up by cancer cells into their lysosomes, where PCurc 8 hydrolyzes and releases active curcumin. It arrests SKOV-3 cell cycle at G(0)/G(1) phase in vitro and induces cell apoptosis partially through the caspase-3 dependent pathway. In vivo, intravenously (i.v.) injected PCurc 8 shows remarkable antitumor activity in SKOV-3 intraperitoneal (i.p.) xenograft tumor model.
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Affiliation(s)
- Huadong Tang
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY 82071, USA
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Fan M, Wang J, Ettema R, Northam MA, Hansen AC, Argyle MD, Shen Y, Radosz M. Application of Green Chemistry in Energy Production. J Phys Chem A 2010. [DOI: 10.1021/jp910352n] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Winoto W, Shen Y, Radosz M, Hong K, Mays JW. Deuteration Impact on Micellization Pressure and Cloud Pressure of Polystyrene- block-polybutadiene and Polystyrene- block-polyisoprene in Compressible Propane. J Phys Chem B 2009; 113:15156-61. [DOI: 10.1021/jp904917w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- Jianbin Tang
- Department of Chemical & Biochemical Engineering, State Key Lab of Chemical Engineering, Zhejiang University, Hangzhou 310027, China, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, and Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Youqing Shen
- Department of Chemical & Biochemical Engineering, State Key Lab of Chemical Engineering, Zhejiang University, Hangzhou 310027, China, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, and Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Maciej Radosz
- Department of Chemical & Biochemical Engineering, State Key Lab of Chemical Engineering, Zhejiang University, Hangzhou 310027, China, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, and Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Weilin Sun
- Department of Chemical & Biochemical Engineering, State Key Lab of Chemical Engineering, Zhejiang University, Hangzhou 310027, China, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, and Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
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Ma X, Tang J, Shen Y, Fan M, Tang H, Radosz M. Facile Synthesis of Polyester Dendrimers from Sequential Click Coupling of Asymmetrical Monomers. J Am Chem Soc 2009; 131:14795-803. [DOI: 10.1021/ja9037406] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xinpeng Ma
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Jianbin Tang
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Youqing Shen
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Maohong Fan
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Huadong Tang
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Maciej Radosz
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
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25
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Winoto W, Tan SP, Shen Y, Radosz M, Hong K, Mays JW. High-Pressure Micellar Solutions of Symmetric and Asymmetric Styrene−Diene Diblocks in Compressible Near-Critical Solvents: Micellization Pressures and Cloud Pressures Respond but Micellar Cloud Pressures Insensitive to Copolymer Molecular Weight, Concentration, and Block Ratio Changes. Macromolecules 2009. [DOI: 10.1021/ma900848j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Zhang L, Tang H, Tang J, Shen Y, Meng L, Radosz M, Arulsamy N. Pentadentate Copper Halide Complexes Have Higher Catalytic Activity in Atom Transfer Radical Polymerization of Methyl Acrylate Than Hexadentate Complexes. Macromolecules 2009. [DOI: 10.1021/ma900624e] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lifen Zhang
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
- Department of Polymer Science, Wuhan University, Wuhan, China
| | - Huadong Tang
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Jianbin Tang
- State Key Lab of Chemical Engineering and Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou, China 310027
| | - Youqing Shen
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
- State Key Lab of Chemical Engineering and Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou, China 310027
| | - Lingzhi Meng
- Department of Polymer Science, Wuhan University, Wuhan, China
| | - Maciej Radosz
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
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27
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Winoto W, Tan SP, Shen Y, Radosz M, Hong K, Mays JW. High-Pressure Micellar Solutions of Polystyrene-block-polybutadiene and Polystyrene-block-polyisoprene in Propane Exhibit Cloud-Pressure Reduction and Distinct Micellization End Points. Macromolecules 2009. [DOI: 10.1021/ma900270u] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Tang H, Radosz M, Shen Y. Atom transfer radical polymerization and copolymerization of vinyl acetate catalyzed by copper halide/terpyridine. AIChE J 2009. [DOI: 10.1002/aic.11706] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Tyrrell Z, Winoto W, Shen Y, Radosz M. Block Copolymer Micelles Formed in Supercritical Fluid Can Become Water-Dispensable Nanoparticles: Poly(ethylene glycol)−block-Poly(ϵ-caprolactone) in Trifluoromethane. Ind Eng Chem Res 2009. [DOI: 10.1021/ie801472n] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zachary Tyrrell
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Winoto Winoto
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Youqing Shen
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Maciej Radosz
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
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30
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31
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Shen Y, Zhan Y, Tang J, Xu P, Johnson PA, Radosz M, Van Kirk EA, Murdoch WJ. Multifunctioning pH-responsive nanoparticles from hierarchical self-assembly of polymer brush for cancer drug delivery. AIChE J 2008. [DOI: 10.1002/aic.11600] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Affiliation(s)
- Sugata P. Tan
- Soft Material Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Hertanto Adidharma
- Soft Material Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Maciej Radosz
- Soft Material Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
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33
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Affiliation(s)
- S. Wołoszczuk
- Institute of Physics, A. Mickiewicz University, ul. Umultowska 85, 61-614 Poznan, Poland, and Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - M. Banaszak
- Institute of Physics, A. Mickiewicz University, ul. Umultowska 85, 61-614 Poznan, Poland, and Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - P. Knychała
- Institute of Physics, A. Mickiewicz University, ul. Umultowska 85, 61-614 Poznan, Poland, and Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - M. Radosz
- Institute of Physics, A. Mickiewicz University, ul. Umultowska 85, 61-614 Poznan, Poland, and Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
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34
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Radosz M, Hu X, Krutkramelis K, Shen Y. Flue-Gas Carbon Capture on Carbonaceous Sorbents: Toward a Low-Cost Multifunctional Carbon Filter for “Green” Energy Producers. Ind Eng Chem Res 2008. [DOI: 10.1021/ie0707974] [Citation(s) in RCA: 175] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maciej Radosz
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Xudong Hu
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Kaspars Krutkramelis
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Youqing Shen
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
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35
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Abstract
Thermoresponsive polymers have many biomedical applications, but their nondegradability limits their in vivo applications. Herein, we report a new type of degradable thermoresponsive polymers-degradable poly (ethylene glycol) analogues (DPEGs) having lower critical solution temperatures (LCSTs) ranging 10-50 degrees C. DPEGs were synthesized by condensation polymerization of PEG-di(meth)acrylates (PEGDA or PEGDMA) with dithiols. Their LCSTs could be easily tuned by the PEG-chain length and the types of the double bond in the PEG monomers and dithiols. Long PEG chain and the presence of hydrophilic groups in the dithiol monomer increased the LCST of the resulting DPEG. Crosslinking DPEG chains produced thermoresponsive hydrogels. The hydrogels prepared by the end-capping method maintained the thermoresponsive properties of the linear DPEG. The degradable thermoresponsive DPEGs and their hydrogels have great potentials for in vivo biomedical applications.
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Affiliation(s)
- Na Wang
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, USA
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36
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Xu P, Li SY, Li Q, Van Kirk E, Ren J, Murdoch W, Zhang Z, Radosz M, Shen Y. Virion-Mimicking Nanocapsules from pH-Controlled Hierarchical Self-Assembly for Gene Delivery. Angew Chem Int Ed Engl 2008; 47:1260-4. [DOI: 10.1002/anie.200703203] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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37
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Abstract
Solid tumors have an acidic extracellular environment and an altered pH gradient across their cell compartments. Nanoparticles responsive to the pH gradients are promising for cancer drug delivery. Such pH-responsive nanoparticles consist of a corona and a core, one or both of which respond to the external pH to change their soluble/insoluble or charge states. Nanoparticles whose coronas become positively charged or become soluble to make their targeting groups available for binding at the tumor extracellular pH have been developed for promoting cellular targeting and internalization. Nanoparticles whose cores become soluble or change their structures to release the carried drugs at the tumor extracellular pH or lysosomal pH have been developed for fast drug release into the extracellular fluid or cytosol. Such pH-responsive nanoparticles have therapeutic advantages over the conventional pH-insensitive counterparts.
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Affiliation(s)
- Youqing Shen
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY, USA
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38
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Affiliation(s)
- Jianbin Tang
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Maciej Radosz
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Youqing Shen
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
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39
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Wang N, Dong A, Tang H, Van Kirk EA, Johnson PA, Murdoch WJ, Radosz M, Shen Y. Synthesis of Degradable Functional Poly(ethylene glycol) Analogs as Versatile Drug Delivery Carriers. Macromol Biosci 2007; 7:1187-98. [PMID: 17665412 DOI: 10.1002/mabi.200700065] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Poly(ethylene glycol) (PEG) is widely used as a water soluble carrier for polymer-drug conjugates. Herein, we report degradable linear PEG analogs (DPEGs) carrying multifunctional groups. The DPEGs were synthesized by a Michael addition based condensation polymerization of dithiols and PEG diacrylates (PEGDA) or dimethacrylates (PEGDMA). They were stable at pH 7.4 but quickly degraded at pH 6.0 and 5.0. Thus, DPEGs could be used as drug carriers without concern for their retention in the body. DPEGs could be made to carry such functional groups as terminal thiol or (meth)acrylate and pendant hydroxyl groups. The functional groups were used for conjugation of drugs and targeting groups. This new type of PEG analog will be useful for drug delivery and the PEGylation of biomolecules and colloidal particles.
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Affiliation(s)
- Na Wang
- Soft Materials Laboratory and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming, 82071, USA
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40
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Blasig A, Tang J, Hu X, Tan SP, Shen Y, Radosz M. Carbon Dioxide Solubility in Polymerized Ionic Liquids Containing Ammonium and Imidazolium Cations from Magnetic Suspension Balance: P[VBTMA][BF4] and P[VBMI][BF4]. Ind Eng Chem Res 2007. [DOI: 10.1021/ie0616545] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andre Blasig
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Jianbin Tang
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Xudong Hu
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Sugata P. Tan
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Youqing Shen
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Maciej Radosz
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
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41
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Xu P, Van Kirk E, Zhan Y, Murdoch W, Radosz M, Shen Y. Targeted Charge-Reversal Nanoparticles for Nuclear Drug Delivery. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200605254] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Affiliation(s)
- Peisheng Xu
- Department of Chemical and Petroleum Engineering, Soft Materials Laboratory, University of Wyoming, Laramie, WY 82071, USA
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43
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Cong H, Hu X, Radosz M, Shen Y. Brominated Poly(2,6-diphenyl-1,4-phenylene oxide) and Its Silica Nanocomposite Membranes for Gas Separation. Ind Eng Chem Res 2007. [DOI: 10.1021/ie061494x] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hailin Cong
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Xudong Hu
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Maciej Radosz
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Youqing Shen
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
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44
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Tang H, Arulsamy N, Radosz M, Shen Y, Tsarevsky NV, Braunecker WA, Tang W, Matyjaszewski K. Highly active copper-based catalyst for atom transfer radical polymerization. J Am Chem Soc 2007; 128:16277-85. [PMID: 17165782 DOI: 10.1021/ja0653369] [Citation(s) in RCA: 123] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Atom transfer radical polymerization (ATRP) generally requires a catalyst/initiator molar ratio of 0.1 to 1 and catalyst/monomer molar ratio of 0.001 to 0.01 (i.e., catalyst concentration: 1000-10,000 ppm versus monomer). Herein, we report a new copper-based complex CuBr/N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine (TPEN) as a versatile and highly active catalyst for acrylic, methacrylic, and styrenic monomers. The catalyst mediated ATRP at a catalyst/initiator molar ratio of 0.005 and produced polymers with well-controlled molecular weights and low polydispersities. ATRP occurred even at a catalyst/initiator molar ratio as low as 0.001 with copper concentration in the produced polymers as low as 6-8 ppm (catalyst/monomer molar ratio = 10(-5)). The catalyst structures were studied by X-ray diffraction and NMR spectroscopy. The activator CuIBr/TPEN existed in solution as binuclear and mononuclear complexes in equilibrium but as a binuclear complex in its single crystals. The deactivator CuIIBr2/TPEN complex was mononuclear. High stability and appropriate KATRP (ATRP equilibrium constant) were found crucial for the catalyst working under high dilution or in coordinating solvents/monomers. This provides guidance for further design of highly active ATRP catalysts.
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Affiliation(s)
- Huadong Tang
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, USA
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45
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Affiliation(s)
- Xudong Hu
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Hailin Cong
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Youqing Shen
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Maciej Radosz
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
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46
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Affiliation(s)
- Fulin Yang
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering University of Wyoming, Laramie, Wyoming 82071-3295
| | - Gui-Bing Zhao
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering University of Wyoming, Laramie, Wyoming 82071-3295
| | - Hertanto Adidharma
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering University of Wyoming, Laramie, Wyoming 82071-3295
| | - Brian Towler
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering University of Wyoming, Laramie, Wyoming 82071-3295
| | - Maciej Radosz
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering University of Wyoming, Laramie, Wyoming 82071-3295
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47
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Xu P, Li SY, Li Q, Ren J, Van Kirk EA, Murdoch WJ, Radosz M, Shen Y. Biodegradable cationic polyester as an efficient carrier for gene delivery to neonatal cardiomyocytes. Biotechnol Bioeng 2006; 95:893-903. [PMID: 17001632 DOI: 10.1002/bit.21036] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Viral-mediated gene delivery has been explored for the treatment and protection of cardiomyocytes, but so far there is only one report using cationic polymer for gene delivery to cardiomyocytes in spite of many advantages of polymer-mediated gene delivery. In this study, a cationic poly(beta-amino ester) (PDMA) with a degradable backbone and cleavable side chains was synthesized by Michael addition reaction. The toxicity of PDMA to neonatal mouse cardiomyocytes (NMCMs) was significantly lower than that of polyethyleneimine (PEI). PDMA formed stable polyplexes with pEGFP. The dissociation of the polyplexes could be triggered by PDMA degradation, and the dissociation time was tunable via the polymer/pEGFP ratio. In vitro transfection showed that PDMA was an effective and low toxic gene delivery carrier for NMCMs. The PDMA/pEGFP polyplexes transfected EGFP gene to NMCMs with about 28% efficiency and caused little death. In contrast, a significant portion of cardiomyocytes cultured with PEI/pEGFP died.
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Affiliation(s)
- Peisheng Xu
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, USA
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48
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Winoto W, Adidharma H, Shen Y, Radosz M. Micellization Temperature and Pressure for Polystyrene-block-polyisoprene in Subcritical and Supercritical Propane. Macromolecules 2006. [DOI: 10.1021/ma061012t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- W. Winoto
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - H. Adidharma
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Y. Shen
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - M. Radosz
- Soft Materials Laboratory, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
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49
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Zhao GB, Adidharma H, Towler B, Radosz M. Using a Multiple-Mixing-Cell Model to Study Minimum Miscibility Pressure Controlled by Thermodynamic Equilibrium Tie Lines. Ind Eng Chem Res 2006. [DOI: 10.1021/ie0606237] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gui-Bing Zhao
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Hertanto Adidharma
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Brian Towler
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
| | - Maciej Radosz
- Soft Materials Laboratory, Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071-3295
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50
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Randelman RE, Grest GS, Radosz M. Monte Carlo Simulations of the Chemical Potential and Free Energy for Trimer and Hexamer Rings. Molecular Simulation 2006. [DOI: 10.1080/08927028908032784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- R. E. Randelman
- a Corporate Research, Science Laboratory, Exxon Research and Engineering Company , Annandale , New Jersey , 08801 , USA
- b Department of Chemical Engineering , Lehigh University , Bethlehem , Pennsylvania , 18015 , USA
| | - Gary S. Grest
- a Corporate Research, Science Laboratory, Exxon Research and Engineering Company , Annandale , New Jersey , 08801 , USA
| | - M. Radosz
- a Corporate Research, Science Laboratory, Exxon Research and Engineering Company , Annandale , New Jersey , 08801 , USA
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