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Zhao Y, Singh MK, Kremer K, Cortes-Huerto R, Mukherji D. Why Do Elastin-Like Polypeptides Possibly Have Different Solvation Behaviors in Water-Ethanol and Water-Urea Mixtures? Macromolecules 2020; 53:2101-2110. [PMID: 32226139 PMCID: PMC7098058 DOI: 10.1021/acs.macromol.9b02123] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/10/2020] [Indexed: 12/18/2022]
Abstract
The solvent quality determines the collapsed or the expanded state of a polymer. For example, a polymer dissolved in a poor solvent collapses, whereas in a good solvent it opens up. While this standard understanding is generally valid, there are examples when a polymer collapses even in a mixture of two good solvents. This phenomenon, commonly known as co-non-solvency, is usually associated with a wide range of synthetic (smart) polymers. Moreover, recent experiments have shown that some biopolymers, such as elastin-like polypeptides (ELPs) that exhibit lower critical solution behavior T l in pure water, show co-non-solvency behavior in aqueous ethanol mixtures. In this study, we investigate the phase behavior of elastin-like polypeptides (ELPs) in aqueous binary mixtures using molecular dynamics simulations of all-atom and complementary explicit solvent generic models. The model is parameterized by mapping the solvation free energy obtained from the all-atom simulations onto the generic interaction parameters. For this purpose, we derive segment-based (monomer level) generic parameters for four different peptides, namely proline (P), valine (V), glycine (G), and alanine (A), where the first three constitute the basic building blocks of ELPs. Here, we compare the conformational behavior of two ELP sequences, namely -(VPGGG)- and -(VPGVG)-, in aqueous ethanol and -urea mixtures. Consistent with recent experiments, we find that ELPs show co-non-solvency in aqueous ethanol mixtures. Ethanol molecules have preferential binding with all ELP residues, with an interaction contrast of 6-8 k B T, and thus driving the coil-to-globule transition. On the contrary, ELP conformations show a weak variation in aqueous urea mixtures. Our simulations suggest that the glycine residues dictate the overall behavior of ELPs in aqueous urea, where urea molecules have a rather weak preferential binding with glycine as observed from the all atom simulations, i.e., less than k B T. This weak interaction dilutes the overall effect of other neighboring residues and thus ELPs exhibit a different conformational behavior in aqueous urea in comparison to aqueous ethanol mixtures. While the validation of the latter findings will require a more detailed experimental investigation, the results presented here may provide a new twist to the present understanding of cosolvent interactions with peptides and proteins.
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Affiliation(s)
- Yani Zhao
- Max-Planck Institut
für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| | - Manjesh K. Singh
- Max-Planck Institut
für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
- Department of Mechanical Engineering, Indian
Institute of Technology Kanpur, Kanpur 208016, India
| | - Kurt Kremer
- Max-Planck Institut
für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| | | | - Debashish Mukherji
- Stewart Blusson Quantum Matter Institute, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
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3
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Chen C, Ng DYW, Weil T. Denatured proteins as a novel template for the synthesis of well-defined, ultra-stable and water-soluble metal nanostructures for catalytic applications. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2020. [DOI: 10.1186/s42825-020-00020-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
The templated synthesis of noble metal nanoparticles using biomass, such as proteins and polysaccharides, has generated great interest in recent years. In this work, we report on denatured proteins as a novel template for the preparation of water-soluble metal nanoparticles with excellent stability even after high speed centrifugation or storage at room temperature for one year. Different noble metal nanoparticles including spherical gold and platinum nanoparticles as well as gold nanoflowers are obtained using sodium borohydride or ascorbic acid as the reducing agent. The particle size can be controlled by the concentration of the template. These metal nanoparticles are further used as catalysts for the hydrogenation reaction of p-nitrophenol to p-aminophenol. Especially, spherical gold nanoparticles with an average size of 2 nm show remarkable catalytic performance with a rate constant of 1.026 × 10− 2 L s− 1 mg− 1. These metal nanoparticles with tunable size and shape have great potential for various applications such as catalysis, energy, sensing, and biomedicine.
Graphical abstract
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4
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Chen C, Wunderlich K, Mukherji D, Koynov K, Heck AJ, Raabe M, Barz M, Fytas G, Kremer K, Ng DYW, Weil T. Precision Anisotropic Brush Polymers by Sequence Controlled Chemistry. J Am Chem Soc 2020; 142:1332-1340. [PMID: 31829581 PMCID: PMC6978811 DOI: 10.1021/jacs.9b10491] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Indexed: 01/20/2023]
Abstract
The programming of nanomaterials at molecular length-scales to control architecture and function represents a pinnacle in soft materials synthesis. Although elusive in synthetic materials, Nature has evolutionarily refined macromolecular synthesis with perfect atomic resolution across three-dimensional space that serves specific functions. We show that biomolecules, specifically proteins, provide an intrinsic macromolecular backbone for the construction of anisotropic brush polymers with monodisperse lengths via grafting-from strategy. Using human serum albumin as a model, its sequence was exploited to chemically transform a single cysteine, such that the expression of said functionality is asymmetrically placed along the backbone of the eventual brush polymer. This positional monofunctionalization strategy was connected with biotin-streptavidin interactions to demonstrate the capabilities for site-specific self-assembly to create higher ordered architectures. Supported by systematic experimental and computational studies, we envisioned that this macromolecular platform provides unique avenues and perspectives in macromolecular design for both nanoscience and biomedicine.
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Affiliation(s)
- Chaojian Chen
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Ulm
University, Albert-Einstein-Allee
11, 89081 Ulm, Germany
| | - Katrin Wunderlich
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Debashish Mukherji
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Stewart
Blusson Quantum Matter Institute, University
of British Columbia, Vancouver V6T 1Z4, Canada
| | - Kaloian Koynov
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Astrid Johanna Heck
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Marco Raabe
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Ulm
University, Albert-Einstein-Allee
11, 89081 Ulm, Germany
| | - Matthias Barz
- Johannes
Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - George Fytas
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Institute
of Electronic Structure and Laser, Foundation
for Research and Technology, P.O. Box
1527, 71110 Heraklion, Greece
| | - Kurt Kremer
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - David Yuen Wah Ng
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Tanja Weil
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Ulm
University, Albert-Einstein-Allee
11, 89081 Ulm, Germany
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5
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Hafner S, Raabe M, Wu Y, Wang T, Zuo Z, Rasche V, Syrovets T, Weil T, Simmet T. High‐Contrast Magnetic Resonance Imaging and Efficient Delivery of an Albumin Nanotheranostic in Triple‐Negative Breast Cancer Xenografts. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900084] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University Helmholtzstr. 20 89081 Ulm Germany
| | - Marco Raabe
- Max‐Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Department of Inorganic Chemistry IUlm University Albert‐Einstein‐Allee 11 89081 Ulm Germany
| | - Yuzhou Wu
- Max‐Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia MedicaSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Tao Wang
- School of Materials Science and EngineeringSouthwest Jiaotong University Chengdu 610031 P. R. China
| | - Zhi Zuo
- Internal Medicine II, Core Facility Small Animal MRI, Medical FacultyUlm University Albert‐Einstein‐Allee 23 89081 Ulm Germany
| | - Volker Rasche
- Internal Medicine II, Core Facility Small Animal MRI, Medical FacultyUlm University Albert‐Einstein‐Allee 23 89081 Ulm Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University Helmholtzstr. 20 89081 Ulm Germany
| | - Tanja Weil
- Max‐Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Department of Inorganic Chemistry IUlm University Albert‐Einstein‐Allee 11 89081 Ulm Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University Helmholtzstr. 20 89081 Ulm Germany
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6
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Zhu X, Lv MM, Liu JW, Yu RQ, Jiang JH. DNAzyme activated protein-scaffolded CRISPR-Cas9 nanoassembly for genome editing. Chem Commun (Camb) 2019; 55:6511-6514. [PMID: 31099367 DOI: 10.1039/c9cc03172c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
A novel self-assembled protein-scaffolded CRISPR-Cas9 nanosystem for facile and efficient gene editing in a DNAzyme-controlled manner has been developed.
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Affiliation(s)
- Xueli Zhu
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Meng-Mei Lv
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Jin-Wen Liu
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Ru-Qin Yu
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Jian-Hui Jiang
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
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7
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Li N, Wang XY, Xiang MH, Liu JW, Yu RQ, Jiang JH. Programmable Self-Assembly of Protein-Scaffolded DNA Nanohydrogels for Tumor-Targeted Imaging and Therapy. Anal Chem 2019; 91:2610-2614. [PMID: 30701962 DOI: 10.1021/acs.analchem.8b05706] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
DNA hydrogels are biocompatible and are suitable for many biomedical applications. However, to be useful imaging probes or drug carriers, the ordinary bulk size of DNA hydrogels must be overcome. Here we put forward a new strategy for fabricating a novel and simple protein-scaffolded DNA nanohydrogel, constructed through a direct DNA self-assembly using three types of streptavidin (SA)-based DNA tetrad for the activation of imaging and targeting therapy of cancer cells. The DNA nanohydrogels are easily prepared, and we show that by varying the initial concentration of DNA tetrad, it is possible to finely control their size within nanoscale range, which are favorable as carriers for intracellular imaging and transport. By further incorporating therapeutic agents and tumor-targeting MUC1 aptamer, these multifunctionalized SA-scaffolded DNA nanohydrogels (SDH) can specifically target cancer cells and selectively release the preloaded therapeutic agents via a structure switching when in an ATP-rich intracellular environment, leading to the activation of the fluorescence and efficient treatment of cancer cells. With the advantages of facile modular design and assembly, effective cellular uptake, and excellent biocompatibility, the method reported here has the potential for the development of new tunable DNA nanohydrogels with multiple synergistic functionalities for biological and biomedical applications.
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Affiliation(s)
- Na Li
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Xiu-Yan Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Mei-Hao Xiang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Jin-Wen Liu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Ru-Qin Yu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Jian-Hui Jiang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China
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8
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Chakrabortty S, Sison M, Wu Y, Ladenburger A, Pramanik G, Biskupek J, Extermann J, Kaiser U, Lasser T, Weil T. NIR-emitting and photo-thermal active nanogold as mitochondria-specific probes. Biomater Sci 2018; 5:966-971. [PMID: 28282092 DOI: 10.1039/c6bm00951d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We report a bioinspired multifunctional albumin derived polypeptide coating comprising grafted poly(ethylene oxide) chains, multiple copies of the HIV TAT derived peptide enabling cellular uptake as well as mitochondria targeting triphenyl-phosphonium (TPP) groups. Exploring these polypeptide copolymers for passivating gold nanoparticles (Au NPs) yielded (i) NIR-emitting markers in confocal microscopy and (ii) photo-thermal active probes in optical coherence microscopy. We demonstrate the great potential of such multifunctional protein-derived biopolymer coatings for efficiently directing Au NP into cells and to subcellular targets to ultimately probe important cellular processes such as mitochondria dynamics and vitality inside living cells.
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Affiliation(s)
- Sabyasachi Chakrabortty
- Institute of Organic Chemistry III, Ulm University, Albert-Einstein-Allee 11, D-89081, Ulm, Germany.
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9
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Lu H, Noorani L, Jiang Y, Du AW, Stenzel MH. Penetration and drug delivery of albumin nanoparticles into pancreatic multicellular tumor spheroids. J Mater Chem B 2017; 5:9591-9599. [PMID: 32264572 DOI: 10.1039/c7tb02902k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Albumin-based nanoparticles have been exploited as a useful carrier for the efficient delivery of anti-cancer drugs. In this study, albendazole was encapsulated into bovine serum albumin (BSA)-polycaprolactone (PCL) conjugates and the formed nanoparticles with a size about 100 nm were used to treat pancreatic carcinoma cells. In addition, two more types of albendazole-loaded BSA nanoparticles, 10 nm and 200 nm ones, were prepared using a desolvation method. The albendazole-loaded BSA nanoparticles were evaluated with both 2D cultured AsPC-1 cells and 3D multicellular tumor spheroids (MCTS). Their anti-tumor effects were also compared. BSA-PCL nanoparticles and 200 nm BSA nanoparticles showed noticeable cytotoxicity to 2D cultured AsPC-1 cells when compared to the free drug. The penetration of BSA-PCL nanoparticles and 200 nm BSA nanoparticles, especially the BSA-PCL nanoparticles, enabled effective delivery of albendazole into pancreatic MCTS. BSA-PCL nanoparticles also showed a better inhibition effect on the growth of pancreatic MCTS than the 200 nm counterpart. Although 10 nm BSA nanoparticles inhibited the growth of MCTS, the inhibitory effect was even less than that of free albendazole. In addition, it is also found that SPARC protein facilitates the penetration and drug delivery of albumin nanoparticle since treatment using anti-SPARC antibody decreased the efficacy of drug loaded BSA nanoparticles.
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Affiliation(s)
- Hongxu Lu
- Centre for Advanced Macromolecular Design, School of Chemistry, University of New South Wales, Kensington, Sydney, New South Wales 2052, Australia.
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10
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Gačanin J, Kovtun A, Fischer S, Schwager V, Quambusch J, Kuan SL, Liu W, Boldt F, Li C, Yang Z, Liu D, Wu Y, Weil T, Barth H, Ignatius A. Spatiotemporally Controlled Release of Rho-Inhibiting C3 Toxin from a Protein-DNA Hybrid Hydrogel for Targeted Inhibition of Osteoclast Formation and Activity. Adv Healthc Mater 2017; 6. [PMID: 28758712 DOI: 10.1002/adhm.201700392] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 07/10/2017] [Indexed: 12/17/2022]
Abstract
In osteoporosis, bone structure can be improved by the introduction of therapeutic molecules inhibiting bone resorption by osteoclasts. Here, biocompatible hydrogels represent an excellent option for the delivery of pharmacologically active molecules to the bone tissue because of their biodegradability, injectability, and manifold functionalization capacity. The present study reports the preparation of a multifunctional hybrid hydrogel from chemically modified human serum albumin and rationally designed DNA building blocks. The hybrid hydrogel combines advantageous characteristics, including rapid gelation through DNA hybridization under physiological conditions and a self-healing and injectable nature with the possibility of specific loading and spatiotemporally controlled release of active proteins, making it an advanced biomaterial for the local treatment of bone diseases, for example, osteoporosis. The hydrogels are loaded with a recombinant Rho-inhibiting C3 toxin, C2IN-C3lim-G205C. This toxin selectively targets osteoclasts and inhibits Rho-signaling and, thereby, actin-dependent processes in these cells. Application of C2IN-C3lim-G205C toxin-loaded hydrogels effectively reduces osteoclast formation and resorption activity in vitro, as demonstrated by tartrate-resistant acid phosphatase staining and the pit resorption assay. Simultaneously, osteoblast activity, viability, and proliferation are unaffected, thus making C2IN-C3lim-G205C toxin-loaded hybrid hydrogels an attractive pharmacological system for spatial and selective modulation of osteoclast functions to reduce bone resorption.
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Affiliation(s)
- Jasmina Gačanin
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
| | - Anna Kovtun
- Institute of Orthopedic Research and Biomechanics; Trauma Research Center; University of Ulm; 89081 Ulm Germany
| | - Stephan Fischer
- Institute of Pharmacology and Toxicology; University of Ulm; 89081 Ulm Germany
| | - Victoria Schwager
- Institute of Pharmacology and Toxicology; University of Ulm; 89081 Ulm Germany
| | - Johanna Quambusch
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
- Max Planck Institute for Polymer Research; 55128 Mainz Germany
| | - Seah Ling Kuan
- Max Planck Institute for Polymer Research; 55128 Mainz Germany
| | - Weina Liu
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
| | - Felix Boldt
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
| | - Chuang Li
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education; Department of Chemistry; Tsinghua University; 100084 Beijing China
| | - Zhongqiang Yang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education; Department of Chemistry; Tsinghua University; 100084 Beijing China
| | - Dongsheng Liu
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education; Department of Chemistry; Tsinghua University; 100084 Beijing China
| | - Yuzhou Wu
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
- Max Planck Institute for Polymer Research; 55128 Mainz Germany
- School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 430074 Wuhan China
| | - Tanja Weil
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
- Max Planck Institute for Polymer Research; 55128 Mainz Germany
| | - Holger Barth
- Institute of Pharmacology and Toxicology; University of Ulm; 89081 Ulm Germany
| | - Anita Ignatius
- Institute of Orthopedic Research and Biomechanics; Trauma Research Center; University of Ulm; 89081 Ulm Germany
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11
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3D Time-lapse Imaging and Quantification of Mitochondrial Dynamics. Sci Rep 2017; 7:43275. [PMID: 28230188 PMCID: PMC5322395 DOI: 10.1038/srep43275] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 01/19/2017] [Indexed: 02/01/2023] Open
Abstract
We present a 3D time-lapse imaging method for monitoring mitochondrial dynamics in living HeLa cells based on photothermal optical coherence microscopy and using novel surface functionalization of gold nanoparticles. The biocompatible protein-based biopolymer coating contains multiple functional groups which impart better cellular uptake and mitochondria targeting efficiency. The high stability of the gold nanoparticles allows continuous imaging over an extended time up to 3000 seconds without significant cell damage. By combining temporal autocorrelation analysis with a classical diffusion model, we quantify mitochondrial dynamics and cast these results into 3D maps showing the heterogeneity of diffusion parameters across the whole cell volume.
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Chakrabortty S, Agrawalla BK, Stumper A, Vegi NM, Fischer S, Reichardt C, Kögler M, Dietzek B, Feuring-Buske M, Buske C, Rau S, Weil T. Mitochondria Targeted Protein-Ruthenium Photosensitizer for Efficient Photodynamic Applications. J Am Chem Soc 2017; 139:2512-2519. [PMID: 28097863 PMCID: PMC5588099 DOI: 10.1021/jacs.6b13399] [Citation(s) in RCA: 225] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
Organelle-targeted
photosensitization represents a promising approach
in photodynamic therapy where the design of the active photosensitizer
(PS) is very crucial. In this work, we developed a macromolecular
PS with multiple copies of mitochondria-targeting groups and ruthenium
complexes that displays highest phototoxicity toward several cancerous
cell lines. In particular, enhanced anticancer activity was demonstrated
in acute myeloid leukemia cell lines, where significant impairment
of proliferation and clonogenicity occurs. Finally, attractive two-photon
absorbing properties further underlined the great significance of
this PS for mitochondria targeted PDT applications in deep tissue
cancer therapy.
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Affiliation(s)
| | | | | | | | | | - Christian Reichardt
- Department of Functional Interfaces, Leibniz Institute of Photonic Technology (IPHT) Jena , Albert-Einstein-Straße 9, 07745 Jena, Germany
| | | | - Benjamin Dietzek
- Department of Functional Interfaces, Leibniz Institute of Photonic Technology (IPHT) Jena , Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Michaela Feuring-Buske
- Department of Internal Medicine III, University Hospital Ulm , Albert-Einstein Allee 23, 89081, Ulm, Germany
| | | | | | - Tanja Weil
- Max-Planck-Institute for Polymer Research , Ackermannweg 10, 55128 Mainz, Germany
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13
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Palesch D, Boldt F, Müller JA, Eisele K, Stürzel CM, Wu Y, Münch J, Weil T. PEGylated Cationic Serum Albumin for Boosting Retroviral Gene Transfer. Chembiochem 2016; 17:1504-8. [PMID: 27239020 DOI: 10.1002/cbic.201600193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Indexed: 01/28/2023]
Abstract
Retroviral vectors are common tools for introducing genes into the genome of a cell. However, low transduction rates are a major limitation in retroviral gene transfer, especially in clinical applications. We generated cationic human serum albumin (cHSA) protected by a shell of poly(ethylene glycol) (PEG); this significantly enhanced retroviral gene transduction with potentially attractive pharmacokinetics and low immunogenicity. By screening a panel of chemically optimized HSA compounds, we identified a very potent enhancer that boosted the transduction rates of viral vectors. Confocal microscopy revealed a drastically increased number of viral particles attached to the surfaces of target cells. In accordance with the positive net charge of cationic and PEGylated HSA, this suggests a mechanism of action in which the repulsion of the negatively charged cellular and viral vector membranes is neutralized, thereby promoting attachment and ultimately transduction. Importantly, the transduction-enhancing PEGylated HSA derivative evaded recognition by HSA-specific antibodies and macrophage activation. Our findings hold great promise for facilitating improved retroviral gene transfer.
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Affiliation(s)
- David Palesch
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstrasse 1, 89081, Ulm, Germany
| | - Felix Boldt
- Institute of Organic Chemistry III/Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Janis A Müller
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstrasse 1, 89081, Ulm, Germany
| | - Klaus Eisele
- Institute of Organic Chemistry III/Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Christina M Stürzel
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstrasse 1, 89081, Ulm, Germany
| | - Yuzhou Wu
- Institute of Organic Chemistry III/Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Jan Münch
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstrasse 1, 89081, Ulm, Germany.
| | - Tanja Weil
- Institute of Organic Chemistry III/Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
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14
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Design of Self-Assembling Protein-Polymer Conjugates. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 940:179-214. [PMID: 27677514 DOI: 10.1007/978-3-319-39196-0_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Protein-polymer conjugates are of particular interest for nanobiotechnology applications because of the various and complementary roles that each component may play in composite hybrid-materials. This chapter focuses on the design principles and applications of self-assembling protein-polymer conjugate materials. We address the general design methodology, from both synthetic and genetic perspective, conjugation strategies, protein vs. polymer driven self-assembly and finally, emerging applications for conjugate materials. By marrying proteins and polymers into conjugated bio-hybrid materials, materials scientists, chemists, and biologists alike, have at their fingertips a vast toolkit for material design. These inherently hierarchical structures give rise to useful patterning, mechanical and transport properties that may help realize new, more efficient materials for energy generation, catalysis, nanorobots, etc.
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15
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Jiang Y, Lu H, Dag A, Hart-Smith G, Stenzel MH. Albumin–polymer conjugate nanoparticles and their interactions with prostate cancer cells in 2D and 3D culture: comparison between PMMA and PCL. J Mater Chem B 2016; 4:2017-2027. [DOI: 10.1039/c5tb02576a] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Using proteins as the hydrophilic moiety can dramatically improve the biodegradability and biocompatibility of self-assembled amphiphilic nanoparticles in the field of nanomedicine.
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Affiliation(s)
- Yanyan Jiang
- Centre for Advanced Macromolecular Design (CAMD)
- School of Chemical Engineering and School of Chemistry
- University of New South Wales
- Sydney
- Australia
| | - Hongxu Lu
- Centre for Advanced Macromolecular Design (CAMD)
- School of Chemical Engineering and School of Chemistry
- University of New South Wales
- Sydney
- Australia
| | - Aydan Dag
- Department of Pharmaceutical Chemistry
- Faculty of Pharmacy
- Bezmialem Vakif University
- 34093 Fatih
- Turkey
| | - Gene Hart-Smith
- Systems Biology Initiative
- School of Biotechnology and Biomolecular Sciences
- University of New South Wales
- Sydney 2052
- Australia
| | - Martina H. Stenzel
- Centre for Advanced Macromolecular Design (CAMD)
- School of Chemical Engineering and School of Chemistry
- University of New South Wales
- Sydney
- Australia
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16
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Wu Y, Li C, Boldt F, Wang Y, Kuan SL, Tran TT, Mikhalevich V, Förtsch C, Barth H, Yang Z, Liu D, Weil T. Programmable protein-DNA hybrid hydrogels for the immobilization and release of functional proteins. Chem Commun (Camb) 2015; 50:14620-2. [PMID: 25311614 DOI: 10.1039/c4cc07144a] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A modular approach for the precise assembly of multi-component hydrogels consisting of protein and DNA building blocks is described for the first time. Multi-arm DNA is designed for crosslinking and stepwise, non-covalent assembly of active proteins inside the hydrogel.
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Affiliation(s)
- Yuzhou Wu
- Institute of Organic Chemistry III, Macromolecular Chemistry and Biomaterials, University of Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany.
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17
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Dag A, Jiang Y, Karim KJA, Hart-Smith G, Scarano W, Stenzel MH. Polymer-Albumin Conjugate for the Facilitated Delivery of Macromolecular Platinum Drugs. Macromol Rapid Commun 2015; 36:890-897. [DOI: 10.1002/marc.201400576] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Affiliation(s)
- Aydan Dag
- Centre for Advanced Macromolecular Design; School of Chemistry and School of Chemical Engineering; University of New South Wales; Sydney 2052 Australia
- Department of Pharmaceutical Chemistry; Faculty of Pharmacy; Bezmialem Vakif University; 34093 Fatih Istanbul Turkey
| | - Yanyan Jiang
- Centre for Advanced Macromolecular Design; School of Chemistry and School of Chemical Engineering; University of New South Wales; Sydney 2052 Australia
| | - Khairil Juhanni Abd Karim
- Centre for Advanced Macromolecular Design; School of Chemistry and School of Chemical Engineering; University of New South Wales; Sydney 2052 Australia
- Department of Chemistry; Faculty of Science; Universiti Teknologi Malaysia (UTM); 81310 UTM Skudai Johor Malaysia
| | - Gene Hart-Smith
- Systems Biology Initiative; School of Biotechnology and Biomolecular Sciences; University of New South Wales; Sydney 2052 Australia
| | - Wei Scarano
- Centre for Advanced Macromolecular Design; School of Chemistry and School of Chemical Engineering; University of New South Wales; Sydney 2052 Australia
| | - Martina H. Stenzel
- Centre for Advanced Macromolecular Design; School of Chemistry and School of Chemical Engineering; University of New South Wales; Sydney 2052 Australia
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18
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Ng DYW, Wu Y, Kuan SL, Weil T. Programming supramolecular biohybrids as precision therapeutics. Acc Chem Res 2014; 47:3471-80. [PMID: 25357135 DOI: 10.1021/ar5002445] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
CONSPECTUS: Chemical programming of macromolecular structures to instill a set of defined chemical properties designed to behave in a sequential and precise manner is a characteristic vision for creating next generation nanomaterials. In this context, biopolymers such as proteins and nucleic acids provide an attractive platform for the integration of complex chemical design due to their sequence specificity and geometric definition, which allows accurate translation of chemical functionalities to biological activity. Coupled with the advent of amino acid specific modification techniques, "programmable" areas of a protein chain become exclusively available for any synthetic customization. We envision that chemically reprogrammed hybrid proteins will bridge the vital link to overcome the limitations of synthetic and biological materials, providing a unique strategy for tailoring precision therapeutics. In this Account, we present our work toward the chemical design of protein- derived hybrid polymers and their supramolecular responsiveness, while summarizing their impact and the advancement in biomedicine. Proteins, in their native form, represent the central framework of all biological processes and are an unrivaled class of macromolecular drugs with immense specificity. Nonetheless, the route of administration of protein therapeutics is often vastly different from Nature's biosynthesis. Therefore, it is imperative to chemically reprogram these biopolymers to direct their entry and activity toward the designated target. As a consequence of the innate structural regularity of proteins, we show that supramolecular interactions facilitated by stimulus responsive chemistry can be intricately designed as a powerful tool to customize their functions, stability, activity profiles, and transportation capabilities. From another perspective, a protein in its denatured, unfolded form serves as a monodispersed, biodegradable polymer scaffold decorated with functional side chains available for grafting with molecules of interest. Additionally, we are equipped with analytical tools to map the fingerprint of the protein chain, directly elucidating the structure at the molecular level. Contrary to conventional polymers, these biopolymers facilitate a more systematic avenue to investigate engineered macromolecules, with greater detail and accuracy. In this regard, we focus on denaturing serum albumin, an abundant blood protein, and exploit its peptidic array of functionalities to program supramolecular architectures for bioimaging, drug and gene delivery. Ultimately, we seek to assimilate the evolutionary advantage of these protein based biopolymers with the limitless versatility of synthetic chemistry to merge the best of both worlds.
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Affiliation(s)
- David Yuen Wah Ng
- Institute of Organic Chemistry
III, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Yuzhou Wu
- Institute of Organic Chemistry
III, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Seah Ling Kuan
- Institute of Organic Chemistry
III, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Tanja Weil
- Institute of Organic Chemistry
III, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
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19
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Meier C, Wu Y, Pramanik G, Weil T. Self-Assembly of High Molecular Weight Polypeptide Copolymers Studied via Diffusion Limited Aggregation. Biomacromolecules 2014; 15:219-27. [DOI: 10.1021/bm401506a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Christoph Meier
- Institute for Organic Chemistry
III/Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Yuzhou Wu
- Institute for Organic Chemistry
III/Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Goutam Pramanik
- Institute for Organic Chemistry
III/Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Tanja Weil
- Institute for Organic Chemistry
III/Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
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20
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Borchmann DE, Carberry TP, Weck M. "Bio"-macromolecules: polymer-protein conjugates as emerging scaffolds for therapeutics. Macromol Rapid Commun 2013; 35:27-43. [PMID: 24323623 DOI: 10.1002/marc.201300792] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 11/01/2013] [Indexed: 12/26/2022]
Abstract
Polymer-protein conjugates are biohybrid macromolecules derived from covalently connecting synthetic polymers with polypeptides. The resulting materials combine the properties of both worlds: chemists can engineer polymers to stabilize proteins, to add functionality, or to enhance activity; whereas biochemists can exploit the specificity and complexity that Nature has bestowed upon its macromolecules. This has led to a wealth of applications, particularly within the realm of biomedicine. Polymer-protein conjugation has expanded to include scaffolds for drug delivery, tissue engineering, and microbial inhibitors. This feature article reflects upon recent developments in the field and discusses the applications of these hybrids from a biomaterials standpoint.
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Affiliation(s)
- Dorothee E Borchmann
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Sq. E., New York, New York, 10003, USA
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21
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Wu Y, Ihme S, Feuring‐Buske M, Kuan SL, Eisele K, Lamla M, Wang Y, Buske C, Weil T. A core-shell albumin copolymer nanotransporter for high capacity loading and two-step release of doxorubicin with enhanced anti-leukemia activity. Adv Healthc Mater 2013; 2:884-94. [PMID: 23225538 DOI: 10.1002/adhm.201200296] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Indexed: 11/11/2022]
Abstract
The native transportation protein serum albumin represents an attractive nano-sized transporter for drug delivery applications due to its beneficial safety profile. Existing albumin-based drug delivery systems are often limited by their low drug loading capacity as well as noticeable drug leakage into the blood circulation. Therefore, a unique albumin-derived core-shell doxorubicin (DOX) delivery system based on the protein denaturing-backfolding strategy was developed. 28 DOX molecules were covalently conjugated to the albumin polypeptide backbone via an acid sensitive hydrazone linker. Polycationic and pegylated human serum albumin formed two non-toxic and enzymatically degradable protection shells around the encapsulated DOX molecules. This core-shell delivery system possesses notable advantages, including a high drug loading capacity critical for low administration doses, a two-step drug release mechanism based on pH and the presence of proteases, an attractive biocompatibility and narrow size distribution inherited from the albumin backbone, as well as fast cellular uptake and masking of epitopes due to a high degree of pegylation. The IC50 of these nanoscopic onion-type micelles was found in the low nanomolar range for Hela cells as well as leukemia cell lines. In vivo data indicate its attractive potential as anti-leukemia treatment suggesting its promising profile as nanomedicine drug delivery system.
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Affiliation(s)
- Yuzhou Wu
- Institute of Organic Chemistry III, Macromolecular Chemistry, Albert‐Einstein‐Allee 11, 89081 Ulm, Germany
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Susann Ihme
- Institute of Experimental Cancer Research, CCCU, Albert‐Einstein‐Allee 11, 89081 Ulm, Germany
| | - Michaela Feuring‐Buske
- Institute of Experimental Cancer Research, CCCU, Albert‐Einstein‐Allee 11, 89081 Ulm, Germany
- Department of Internal Medicine III, University Hospital Ulm, Albert‐Einstein‐Allee 23, 89081 Ulm, Germany
| | - Seah Ling Kuan
- Institute of Organic Chemistry III, Macromolecular Chemistry, Albert‐Einstein‐Allee 11, 89081 Ulm, Germany
| | - Klaus Eisele
- Institute of Organic Chemistry III, Macromolecular Chemistry, Albert‐Einstein‐Allee 11, 89081 Ulm, Germany
| | - Markus Lamla
- Institute of Organic Chemistry III, Macromolecular Chemistry, Albert‐Einstein‐Allee 11, 89081 Ulm, Germany
| | - Yanran Wang
- Institute of Organic Chemistry III, Macromolecular Chemistry, Albert‐Einstein‐Allee 11, 89081 Ulm, Germany
| | - Christian Buske
- Institute of Experimental Cancer Research, CCCU, Albert‐Einstein‐Allee 11, 89081 Ulm, Germany
| | - Tanja Weil
- Institute of Organic Chemistry III, Macromolecular Chemistry, Albert‐Einstein‐Allee 11, 89081 Ulm, Germany
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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22
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Kuan SL, Wu Y, Weil T. Precision Biopolymers from Protein Precursors for Biomedical Applications. Macromol Rapid Commun 2013; 34:380-92. [DOI: 10.1002/marc.201200662] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 11/27/2012] [Indexed: 12/17/2022]
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23
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Polymer Complexes in Biological Applications. FROM SINGLE MOLECULES TO NANOSCOPICALLY STRUCTURED MATERIALS 2013. [DOI: 10.1007/12_2013_229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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