51
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Self-assembly and photocatalytic activity of branched silicatein/silintaphin filaments decorated with silicatein-synthesized TiO2 nanoparticles. Bioprocess Biosyst Eng 2016; 39:1477-86. [DOI: 10.1007/s00449-016-1619-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 04/26/2016] [Indexed: 12/18/2022]
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52
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Xu YJ, Dong L, Lu Y, Zhang LC, An D, Gao HL, Yang DM, Hu W, Sui C, Xu WP, Yu SH. Magnetic hydroxyapatite nanoworms for magnetic resonance diagnosis of acute hepatic injury. NANOSCALE 2016; 8:1684-90. [PMID: 26694026 DOI: 10.1039/c5nr07023f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Inorganic non-metallic biomaterials, including the silicon frustule of a unicellular diatom, the carbonate shell of a mollusk and the calcium skeleton of the vertebrate, which are the main constituent part of an organism, serve as the supportive and protective components of soft tissue. Among them, hydroxyapatite, which primarily makes up the enamel and bone, is widely used in tissue engineering. Recently, the inorganic nonmetallic biomaterials, especially the applications of hydroxyapatites have attracted great attention. Herein, we report a novel synthesis method of magnetic functionalized hydroxyapatite nanocomposites. By simply tuning the ratios of reactants, a series of hydroxyapatite-Fe3O4 worm-shaped nanocomposites (HAP-ION nanoworms) are obtained. In addition, layer-by-layer surface modifications with chitosan (CH) and sodium alginate (SA) were employed to improve the solubility and biocompatibility, and low cytotoxicity and no hemolysis were observed. With the increase of iron oxide nanocrystals, the magnetic properties of the magnetic assembled nanoworms were enhanced, which resulted in better performance of magnetic resonance (MR) imaging. Owing to the intravenous injection of HAP-ION nanoworms, the contrast to noise ratio (CNR) of hepatic MR imaging in vivo was enhanced obviously, which should be beneficial for hepatic injury grading and further therapeutic treatment.
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Affiliation(s)
- Yun-Jun Xu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China. and Anhui Provincial Hospital, Hefei 230001, P. R. China.
| | - Liang Dong
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China.
| | - Yang Lu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China. and School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
| | - Le-Cheng Zhang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China.
| | - Duo An
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China.
| | - Huai-Ling Gao
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China.
| | - Dong-Mei Yang
- Anhui Provincial Hospital, Hefei 230001, P. R. China.
| | - Wen Hu
- Anhui Provincial Hospital, Hefei 230001, P. R. China.
| | - Cong Sui
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China.
| | - Wei-Ping Xu
- Anhui Provincial Hospital, Hefei 230001, P. R. China.
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China.
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53
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Tagaya M. Effective segregation of cytocompatible chitosan molecules in a silica-surfactant nanostructure formation process. RSC Adv 2016. [DOI: 10.1039/c5ra26241k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Segregated nanostructures of Chi molecules by a silica-surfactant self-assembly film formation process were successfully prepared, and it is shown that their self-organization affects the cytocompatibility.
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Affiliation(s)
- M. Tagaya
- Department of Materials Science and Technology
- Nagaoka University of Technology
- Nagaoka, Japan
- Top Runner Incubation Center for Academica-Industry Fusion
- Nagaoka University of Technology
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54
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Xue SH, Xie H, Ping H, Xu XM, Li J, Yang XY, Fu ZY, Su BL. Controlled synthesis of mesoporous nanostructured anatase TiO2 on a genetically modified Escherichia coli surface for high reversible capacity and long-life lithium-ion batteries. RSC Adv 2016. [DOI: 10.1039/c6ra09974b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Deposition and mineralization of TiO2 on genetically modified Escherichia coli surface has been achieved, leading to formation of a nanostructured anatase TiO2 with enhanced electrochemical performance as anode electrodes of lithium-ion batteries.
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Affiliation(s)
- Shuang-Hong Xue
- Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
- School of Chemistry
| | - Hao Xie
- Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
- School of Chemistry
| | - Hang Ping
- Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
| | - Xiao-Mei Xu
- Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
- School of Chemistry
| | - Jing Li
- School of Chemistry
- Chemical Engineering and Life Science
- Wuhan University of Technology
- Wuhan
- China
| | - Xiao-Yu Yang
- Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
| | - Zheng-Yi Fu
- Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
| | - Bao-Lian Su
- Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
- Laboratory of Inorganic Materials Chemistry
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55
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Glassin, a histidine-rich protein from the siliceous skeletal system of the marine sponge Euplectella, directs silica polycondensation. Proc Natl Acad Sci U S A 2015; 112:11449-54. [PMID: 26261346 DOI: 10.1073/pnas.1506968112] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The hexactinellids are a diverse group of predominantly deep sea sponges that synthesize elaborate fibrous skeletal systems of amorphous hydrated silica. As a representative example, members of the genus Euplectella have proved to be useful model systems for investigating structure-function relationships in these hierarchically ordered siliceous network-like composites. Despite recent advances in understanding the mechanistic origins of damage tolerance in these complex skeletal systems, the details of their synthesis have remained largely unexplored. Here, we describe a previously unidentified protein, named "glassin," the main constituent in the water-soluble fraction of the demineralized skeletal elements of Euplectella. When combined with silicic acid solutions, glassin rapidly accelerates silica polycondensation over a pH range of 6-8. Glassin is characterized by high histidine content, and cDNA sequence analysis reveals that glassin shares no significant similarity with any other known proteins. The deduced amino acid sequence reveals that glassin consists of two similar histidine-rich domains and a connecting domain. Each of the histidine-rich domains is composed of three segments: an amino-terminal histidine and aspartic acid-rich sequence, a proline-rich sequence in the middle, and a histidine and threonine-rich sequence at the carboxyl terminus. Histidine always forms HX or HHX repeats, in which most of X positions are occupied by glycine, aspartic acid, or threonine. Recombinant glassin reproduces the silica precipitation activity observed in the native proteins. The highly modular composition of glassin, composed of imidazole, acidic, and hydroxyl residues, favors silica polycondensation and provides insights into the molecular mechanisms of skeletal formation in hexactinellid sponges.
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56
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Cho W, Liu X, Forrest J, Fowler JD, Furst EM. Controlling the Morphology of Organic Crystals with Filamentous Bacteriophages. ACS APPLIED MATERIALS & INTERFACES 2015; 7:15707-15715. [PMID: 26153618 DOI: 10.1021/acsami.5b05548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The preparation of thiamethoxam (TMX) organic crystals with high morphological uniformity was achieved by controlled aggregation-driven crystallization of primitive TMX crystals and phage using the filamentous M13 bacteriophage. The development of a regular, micrometer-sized, tetragonal-bipyramidal crystal structure was dependent on the amount of phage present. The phage appears to affect the supersaturation driving force for crystallization. The phage adsorption isotherm to TMX was well-fitted by the Satake-Yang model, which suggests a cooperative binding between neighboring phages as well as a binding of phage with the TMX crystal surface. This study shows the potential of phage additives to control the morphology and morphological uniformity of organic crystals.
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Affiliation(s)
- Whirang Cho
- †Department of Chemical and Biomolecular Engineering and Center for Molecular and Engineering Thermodynamics, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Xiaomeng Liu
- ‡Syngenta Crop Protection 410 Swing Road, Greensboro, North Carolina 27409, United States
| | - James Forrest
- ‡Syngenta Crop Protection 410 Swing Road, Greensboro, North Carolina 27409, United States
| | - Jeffrey D Fowler
- ‡Syngenta Crop Protection 410 Swing Road, Greensboro, North Carolina 27409, United States
| | - Eric M Furst
- †Department of Chemical and Biomolecular Engineering and Center for Molecular and Engineering Thermodynamics, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
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57
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Ardao I, Magnin D, Agathos SN. Bioinspired production of magnetic laccase-biotitania particles for the removal of endocrine disrupting chemicals. Biotechnol Bioeng 2015; 112:1986-96. [PMID: 26058804 DOI: 10.1002/bit.25612] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 03/30/2015] [Indexed: 01/25/2023]
Abstract
Microbial laccases are powerful enzymes capable of degrading lignin and other recalcitrant compounds including endocrine disrupting chemicals (EDCs). Efficient EDC removal on an industrial scale requires robust, stable, easy to handle and cost-effective immobilized biocatalysts. In this direction, magnetic biocatalysts are attractive due to their easy separation through an external magnetic field. Recently, a bioinspired immobilization technique that mimics the natural biomineralization reactions in diatoms has emerged as a fast and versatile tool for generating robust, cheap, and highly stable (nano) biocatalysts. In this work, bioinspired formation of a biotitania matrix is triggered on the surface of magnetic particles in the presence of laccase in order to produce laccase-biotitania (lac-bioTiO2 ) biocatalysts suitable for environmental applications using a novel, fast and versatile enzyme entrapment technique. Highly active lac-bioTiO2 particles have been produced and the effect of different parameters (enzyme loading, titania precursor concentration, pH, duration of the biotitania formation, and laccase adsorption steps) on the apparent activity yield of these biocatalysts were evaluated, the concentration of the titania precursor being the most influential. The lac-bioTiO2 particles were able to catalyze the removal of bisphenol A, 17α-ethinylestradiol and diclofenac in a mixture of six model EDCs and retained 90% of activity after five reaction cycles and 60% after 10 cycles.
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Affiliation(s)
- Inés Ardao
- Earth & Life Institute-Laboratory of Bioengineering, Université Catholique de Louvain, Place Croix du Sud 2-L7.05.19, 1348, Louvain-la-Neuve, Belgium.
| | - Delphine Magnin
- Institute of Condensed Matter and Nanosciences-Bio and soft matter group, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Spiros N Agathos
- Earth & Life Institute-Laboratory of Bioengineering, Université Catholique de Louvain, Place Croix du Sud 2-L7.05.19, 1348, Louvain-la-Neuve, Belgium
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58
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Cho WK, Yang SH. Bio-Inspired Formation of Silica Thin Films: From Solid Substrates to Cellular Interfaces. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500308] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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59
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Bawazer LA, Ihli J, Comyn TP, Critchley K, Empson CJ, Meldrum FC. Genetic algorithm-guided discovery of additive combinations that direct quantum dot assembly. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:223-227. [PMID: 25420626 DOI: 10.1002/adma.201403185] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/12/2014] [Indexed: 06/04/2023]
Abstract
The use of combinations of organic additives to control crystallization, as occurs in biomineralization, is rarely investigated due to the vast potential reaction space. It is demonstrated here that combinatorial approaches led by genetic algorithm heuristics can enable identification of active additive combinations, and four key organic molecules are rapidly identified, which generate highly fluorescent CdS quantum dot superstructures.
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60
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Arakaki A, Shimizu K, Oda M, Sakamoto T, Nishimura T, Kato T. Biomineralization-inspired synthesis of functional organic/inorganic hybrid materials: organic molecular control of self-organization of hybrids. Org Biomol Chem 2015; 13:974-89. [DOI: 10.1039/c4ob01796j] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Biomineralization-inspired synthesis of functional organic/inorganic hybrid materials. Molecularly controlled mechanisms of biomineralization and application of the processes towards future material synthesis are introduced.
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Affiliation(s)
- Atsushi Arakaki
- Division of Biotechnology and Life Science
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Japan
| | - Katsuhiko Shimizu
- Organization for Regional Industrial Academic Cooperation
- Tottori University
- Tottori 680-8550
- Japan
| | - Mayumi Oda
- Division of Biotechnology and Life Science
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Japan
| | - Takeshi Sakamoto
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Tatsuya Nishimura
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
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61
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Park JH, Choi IS, Yang SH. Peptide-catalyzed, bioinspired silicification for single-cell encapsulation in the imidazole-buffered system. Chem Commun (Camb) 2015; 51:5523-5. [DOI: 10.1039/c4cc08544b] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Cytoprotective silica encapsulation of individual yeast cells is achieved by a peptide-catalyzed silicification under mild conditions, inspired by glass sponges.
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Affiliation(s)
- Ji Hun Park
- Center for Cell-Encapsulation Research
- Department of Chemistry
- KAIST
- Daejeon 305-701
- Korea
| | - Insung S. Choi
- Center for Cell-Encapsulation Research
- Department of Chemistry
- KAIST
- Daejeon 305-701
- Korea
| | - Sung Ho Yang
- Department of Chemistry Education
- Korea National University of Education
- Chungbuk 363-791
- Korea
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62
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Park JH, Lee J, Choi IS, Yang SH. Bioinspired Fabrication of Silica Thin Films on Histidine-Terminated Self-Assembled Monolayers. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.11.3336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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63
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Elkhooly TA, Müller WEG, Wang X, Tremel W, Isbert S, Wiens M. Bioinspired self-assembly of tyrosinase-modified silicatein and fluorescent core-shell silica spheres. BIOINSPIRATION & BIOMIMETICS 2014; 9:044001. [PMID: 25378146 DOI: 10.1088/1748-3182/9/4/044001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Inspired by the intermolecular cross-linking of mussel foot proteins and their adhesive properties, tyrosinase has been used to modify recombinant silicatein. DOPA/DOPAquinone-mediated cross-linking and interfacial interactions enhanced both self-assembly of silicatein building blocks and templating of core-shell silica spheres, resulting in fluorescent biomimetic silicatein-silica hybrid mesofibers.
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Affiliation(s)
- T A Elkhooly
- Institute of Physiological Chemistry, Duesbergweg 6, University Medical Center, Johannes Gutenberg-University, Mainz, Germany. Biomaterials Department, National Research Centre, Dokki, Cairo, Egypt
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64
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Jin RH, Yao DD, Levi RT. Biomimetic Synthesis of Shaped and Chiral Silica Entities Templated by Organic Objective Materials. Chemistry 2014; 20:7196-214. [DOI: 10.1002/chem.201400387] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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65
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Neilson JR, George NC, Murr MM, Seshadri R, Morse DE. Mesostructure from hydration gradients in demosponge biosilica. Chemistry 2014; 20:4956-65. [PMID: 24633700 DOI: 10.1002/chem.201304704] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Revised: 01/19/2014] [Indexed: 11/10/2022]
Abstract
Organisms of the phylum Porifera, that is, sponges, utilize enzymatic hydrolysis to concatenate bioavailable inorganic silicon to produce lightweight, strong, and often flexible skeletal elements called spicules. In their optical transparency, these remarkable biomaterials resemble fused silica, despite having been formed under ambient marine biological conditions. Although previous studies have elucidated the chemical mechanisms of spicule formation and revealed the extensive hydration of these glasses, their precise composition and local and medium-range structures had not been determined. We have employed a combination of compositional analysis, (1) H and (29) Si solid-state nuclear magnetic resonance spectroscopy, and synchrotron X-ray total scattering to characterize spicule-derived silica produced by the demosponge Tethya aurantia. These studies indicate that the materials are highly hydrated, but in an inhomogeneous manner. The spicule-derived silica is, on average, perfectly dense for the given extent of hydration and regions of fully condensed and unstrained SiO networks persist throughout each monolithic spicule. To accommodate chemical strain and defects, the extensive hydration is concentrated in distinct regions that give rise to mesostructural features. The chemistry responsible for producing spicule silica resembles hydrolytic sol-gel processing, which offers exceptional control over the precise local atomic arrangement of materials. However, the specific processing involved in forming the sponge spicule silica further results in regions of fully condensed silica coexisting with regions of incomplete condensation. This mesostructure suggests a mechanism for atomistic defect tolerance and strain relief that may account for the unusual mechanical properties of the biogenic spicules.
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Affiliation(s)
- James R Neilson
- Department of Chemistry, Colorado State University, 1872 Campus Delivery, Fort Collins CO 80523-1872; Biomolecular Science & Engineering and the Institute for Collaborative Biotechnology, University of California Santa Barbara, CA 93106-5100; Materials Research Laboratory, University of California Santa Barbara, CA 93106.
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66
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Fuchs I, Aluma Y, Ilan M, Mastai Y. Induced crystallization of amorphous biosilica to cristobalite by silicatein. J Phys Chem B 2014; 118:2104-11. [PMID: 24499531 DOI: 10.1021/jp4114317] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In nature it is known that silicatein (silica protein) controls the mineralization of a wide range of biosilicas. In this paper we present our results on the induced crystallization of biosilica to cristobalite, which is the thermodynamically most stable crystalline form of silica at a relatively low temperature and ambient pressure. The phase transformation of biosilica from marine sponges to cristobalite under thermal treatment was investigated by a variety of methods, e.g., X-ray diffraction, high-resolution electron microscopy-electron diffraction, and optical methods such as Fourier transform infrared (FTIR) spectroscopy. Our results show that biosilica from marine sponges exhibits a direct phase transformation to cristobalite structure at a relatively low temperature (850 °C). Furthermore, it is shown that porous silica templated with silicatein proteins extracted from sponges also exhibits a phase transformation to cristobalite structure at a relatively low temperature. The surprising discovery that silicatein filaments can induce direct crystallization of biosilica to cristobalite highlights the role of silicatein in governing the synthesis and the hierarchical structure control of biosilica minerals.
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Affiliation(s)
- Ido Fuchs
- Department of Chemistry and the Institute of Nanotechnology, Bar-Ilan University , Ramat-Gan 52900, Israel
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67
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Müller WEG, Link T, Schröder HC, Korzhev M, Neufurth M, Brandt D, Wang X. Dissection of the structure-forming activity from the structure-guiding activity of silicatein: a biomimetic molecular approach to print optical fibers. J Mater Chem B 2014; 2:5368-5377. [DOI: 10.1039/c4tb00801d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The enzymatically inactive silicatein was used as the platform for the enzymatically active silicatein, which synthesized the silica waveguide.
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Affiliation(s)
- Werner E. G. Müller
- ERC Advanced Investigator Grant Research Group
- Institute for Physiological Chemistry
- University Medical Center of the Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
| | - Thorben Link
- ERC Advanced Investigator Grant Research Group
- Institute for Physiological Chemistry
- University Medical Center of the Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
| | - Heinz C. Schröder
- ERC Advanced Investigator Grant Research Group
- Institute for Physiological Chemistry
- University Medical Center of the Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
| | - Michael Korzhev
- ERC Advanced Investigator Grant Research Group
- Institute for Physiological Chemistry
- University Medical Center of the Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
| | - Meik Neufurth
- ERC Advanced Investigator Grant Research Group
- Institute for Physiological Chemistry
- University Medical Center of the Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
| | - David Brandt
- ERC Advanced Investigator Grant Research Group
- Institute for Physiological Chemistry
- University Medical Center of the Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
| | - Xiaohong Wang
- ERC Advanced Investigator Grant Research Group
- Institute for Physiological Chemistry
- University Medical Center of the Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
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68
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Ki MR, Jang EK, Pack SP. Hypothetical cathepsin-like protein from Nematostella vectensis and its silicatein-like cathepsin mutant for biosilica production. Process Biochem 2014. [DOI: 10.1016/j.procbio.2013.10.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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69
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Tong Z, Jiang Y, Yang D, Shi J, Zhang S, Liu C, Jiang Z. Biomimetic and bioinspired synthesis of titania and titania-based materials. RSC Adv 2014. [DOI: 10.1039/c3ra47336h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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70
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Park JH, Kim JY, Cho WK, Choi IS. Bioinspired, Cysteamine-Catalyzed Co-Silicification of (1 H, 1 H, 2 H, 2 H-Perfluorooctyl)triethoxysilane and Tetraethyl Orthosilicate: Formation of Superhydrophobic Surfaces. Chem Asian J 2013; 9:764-8. [DOI: 10.1002/asia.201301213] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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71
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Roehrich A, Drobny G. Solid-state NMR studies of biomineralization peptides and proteins. Acc Chem Res 2013; 46:2136-44. [PMID: 23932180 DOI: 10.1021/ar300321e] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nature has evolved sophisticated strategies for engineering hard tissues through the interaction of proteins, and ultimately cells, with inorganic mineral phases. This process, called biomineralization, is how living organisms transform inorganic materials such as hydroxyapatite, calcite, and silica into highly intricate and organized structures. The remarkable material properties of shell, bone, and teeth come from the activities of proteins that function at the organic-inorganic interface. A better understanding of the biomolecular mechanisms used to promote or retard the formation of mineral-based structures could provide important design principles for the development of calcification inhibitors and promoters in orthopedics, cardiology, urology, and dentistry. With the knowledge of the structural basis for control of hard tissue growth by proteins, scientists could potentially develop materials using biomimetic principles with applications in catalysis, biosensors, electronic devices, and chromatographic separations, to name a few. Additionally, biomineralization also has potential applications in electronics, catalysis, magnetism, sensory devices, and mechanical design. Where man-made hard materials require the use of extreme temperatures, high pressure, and pH, biological organisms can accomplish these feats at ambient temperature and at physiological pH. Despite the fact that many researchers want to identify and control the structure of proteins at material and biomineral interfaces, there is a decided lack of molecular-level structure information available for proteins at biomaterial interfaces in general. In particular, this holds for mammalian proteins that directly control calcification processes in hard tissue. The most fundamental questions regarding the secondary and tertiary structures of proteins adsorbed to material surfaces, how proteins catalyze the formation of biomineral composites, or how proteins interact at biomaterial interfaces remain unanswered. This is largely due to a lack of methods capable of providing high-resolution structural information for proteins adsorbed to material surfaces under physiologically relevant conditions. In this Account, we highlight recent work that is providing insight into the structure and crystal recognition mechanisms of a salivary protein model system, as well as the structure and interactions of a peptide that catalyzes the formation of biosilica composites. To develop a better understanding of the structure and interactions of proteins in biomaterials, we have used solid-state NMR techniques to determine the molecular structure and dynamics of proteins and peptides adsorbed onto inorganic crystal surfaces and embedded within biomineral composites. This work adds to the understanding of the structure and crystal recognition mechanisms of an acidic human salivary phosphoprotein, statherin.
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Affiliation(s)
- Adrienne Roehrich
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States
| | - Gary Drobny
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States
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72
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Pouget E, Grelet E. Dispersions of monodisperse hybrid rod-like particles by mineralization of filamentous viruses. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:8010-8016. [PMID: 23713690 DOI: 10.1021/la401170m] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this work, we report on the synthesis through a direct chemical approach of hybrid organic/inorganic rod-like particles with a very high aspect ratio (length/diameter) by the use of a biotemplate, the fd virus. A synthetic route is proposed based on an initial step of steric stabilization of the colloidal template by hydrophilic polymer grafting. Thanks to this polymer functionalization, the filamentous viruses are well-dispersed in solution during their mineralization by different inorganic salts, leading to suspensions of individual hybrid rod-like particles such as virus/SiO2 and virus/TiO2. This aqueous solution based approach is shown to be highly reproducible, scalable for large production synthesis, and versatile to different inorganic materials.
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Affiliation(s)
- Emilie Pouget
- Centre de Recherche Paul-Pascal, CNRS & Université de Bordeaux, 115 Avenue Schweitzer, F-33600 Pessac, France
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73
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Gebauer D. Bio-Inspired Materials Science at Its Best-Flexible Mesocrystals of Calcite. Angew Chem Int Ed Engl 2013; 52:8208-9. [DOI: 10.1002/anie.201303933] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Indexed: 11/07/2022]
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74
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Gebauer D. Biologisch inspirierte Materialwissenschaften in Hochform - flexible Calcit-Mesokristalle. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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75
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Yuan JJ, Kimitsuka N, Jin RH. Bioinspired synthesis of a soft-nanofilament-based coating consisting of polysilsesquioxanes/polyamine and its divergent surface control. ACS APPLIED MATERIALS & INTERFACES 2013; 5:3126-3133. [PMID: 23534941 DOI: 10.1021/am400025z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The synthesis of polysilsesquioxanes coating with controllable one-dimensional nanostructure on substrates remains a major long-term challenge by conventional solution-phase method. The hydrolytic polycondensation of organosilanes in solution normally produces a mixture of incomplete cages, ladderlike, and network structures, resulting in the poor control of the formation of specific nanostructure. This paper describes a simple aqueous process to synthesize nanofilament-based coatings of polysilsesquioxanes possessing various organo-functional groups (for example, thiol, methyl, phenyl, vinyl, and epoxy). We utilized a self-assembled nanostructured polyamine layer as a biomimetically catalytic scaffold/template to direct the formation of one-dimensional nanofilament of polysilsesquioxanes by temporally and spatially controlled hydrolytic polycondensation of organosilane. The surface nanostructure and morphology of polysilsesquioxane coating could be modulated by changing hydrolysis and condensation reaction conditions, and the orientation of nanofilaments of polysilsesquioxanes on substrates could be controlled by simply adjusting the self-assembly conditions of polyamine layer. The nanostructure and polyamine@polysilsesquioxane hybrid composition of nanofilament-based coatings were examined by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The template role of nanostructured polyamine layer for the formation of polysilsesquioxane nanofilament was confirmed by combining thin film X-ray diffraction (XRD) and XPS measurements. Moreover, these nanotextured coatings with various organo-functional groups could be changed into superhydrophobic surfaces after surface modification with fluorocarbon molecule.
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Affiliation(s)
- Jian-Jun Yuan
- Synthetic Chemistry Laboratory, Kawamura Institute of Chemical Research, 631 Sakado, Sakura, Chiba 285-0078, Japan
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76
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André R, Natalio F, Tahir MN, Berger R, Tremel W. Self-cleaning antimicrobial surfaces by bio-enabled growth of SnO2 coatings on glass. NANOSCALE 2013; 5:3447-3456. [PMID: 23475228 DOI: 10.1039/c3nr00007a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Conventional vapor-deposition techniques for coatings require sophisticated equipment and/or high-temperature resistant substrates. Therefore bio-inspired techniques for the fabrication of inorganic coatings have been developed in recent years. Inspired by the biology behind the formation of the intricate skeletons of diatoms orchestrated by a class of cationic polyamines (silaffins) we have used surface-bound spermine, a naturally occurring polyamine, to promote the fast deposition of homogeneous, thin and transparent biomimetic SnO2 coatings on glass surfaces. The bio-enabled SnO2 film is highly photoactive, i.e. it generates superoxide radicals (O2˙(-)) upon sunlight exposure resulting in a strong degradation of organic contaminants and a strong antimicrobial activity. Upon illumination the biomimetic SnO2 coating exhibits a switchable amphiphilic behavior, which - in combination with its photoactivity - creates a self-cleaning surface. The intrinsic self-cleaning properties could lead to the development of new protective, antifouling coatings on various substrates.
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Affiliation(s)
- Rute André
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, D-55099 Mainz, Germany
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77
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Kwak J, Park SI, Lee SY. Use of the self-assembly of tyrosine-containing bolaamphiphile molecules as a reactive template for metal deposition. Colloids Surf B Biointerfaces 2013; 102:70-5. [DOI: 10.1016/j.colsurfb.2012.07.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2012] [Revised: 07/30/2012] [Accepted: 07/30/2012] [Indexed: 11/28/2022]
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78
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Yang SH, Hong D, Lee J, Ko EH, Choi IS. Artificial spores: cytocompatible encapsulation of individual living cells within thin, tough artificial shells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:178-186. [PMID: 23124994 DOI: 10.1002/smll.201202174] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 10/08/2012] [Indexed: 06/01/2023]
Abstract
Cells are encapsulated individually within thin and tough shells in a cytocompatible way, by mimicking the structure of bacterial endospores that survive under hostile conditions. The 3D 'cell-in-shell' structures-coined as 'artificial spores'-enable modulation and control over cellular metabolism, such as control of cell division, resistance to external stresses, and surface-functionalizability, providing a useful platform for applications, including cell-based sensors, cell therapy, regenerative medicine, as well as for fundamental studies on cellular metabolism at the single-cell level and cell-to-cell communications. This Concept focuses on chemical approaches to single-cell encapsulation with artificial shells for creating artificial spores, including cross-linked layer-by-layer assembly, bioinspired mineralization, and mussel-inspired polymerization. The current status and future prospects of this emerging field are also discussed.
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Affiliation(s)
- Sung Ho Yang
- Department of Chemistry Education, Korea National University of Education, Chungbuk 363-791, Korea
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79
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Chiu CY, Ruan L, Huang Y. Biomolecular specificity controlled nanomaterial synthesis. Chem Soc Rev 2013; 42:2512-27. [DOI: 10.1039/c2cs35347d] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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80
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Tahir MN, Ali M, Andre R, Müller WEG, Schröder HC, Tremel W, Ensinger W. Silicatein conjugation inside nanoconfined geometries through immobilized NTA–Ni(ii) chelates. Chem Commun (Camb) 2013; 49:2210-2. [DOI: 10.1039/c3cc38605h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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81
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Yuan JJ, Zhu PX, Noda D, Jin RH. Controlled synthesis and tunable properties of ultrathin silica nanotubes through spontaneous polycondensation on polyamine fibrils. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2013; 4:793-804. [PMID: 24367748 PMCID: PMC3869340 DOI: 10.3762/bjnano.4.90] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 11/06/2013] [Indexed: 05/08/2023]
Abstract
This paper describes a facile approach to a biomimetic rapid fabrication of ultrathin silica nanotubes with a highly uniform diameter of 10 nm and inner hollow of around 3 nm. The synthesis is carried out through a spontaneous polycondensation of alkoxysilane on polyamine crystalline fibrils that were conveniently produced from the neutralization of a solution of protonated linear polyethyleneimine (LPEI-H(+)) by alkali compounds. A simple mixing the fibrils with alkoxysilane in aqueous solution allowed for the rapid formation of silica to produce LPEI@silica hybrid nanotubes. These 10-nm nanotubes were hierarchically organized in a mat-like morphology with a typical size of 1-2 micrometers. The subsequent removal of organic LPEI via calcination resulted in silica nanotubes that keep this morphology. The morphology, the structure, the pore properties and the formation mechanism of the silica nanotubes were carefully investigated with scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller measurements (BET), and X-ray diffraction (XRD). Detailed studies demonstrated that the formation of the nanotubes depends on the molar ratio of [OH]/[CH2CH2NH] during the neutralization as well as on the basicity of the alkali compound and on the concentration of the silica source. The synthesis of silica nanotubes established here could be easily applied to a fabrication on the kilogram scale. Silica nanotubes that were obtained from the calcination of hybrid nanotubes of LPEI@silica in an N2 atmosphere showed a distinct photoluminescence centered at 540 nm with a maximum excitation wavelength of 320 nm. Furthermore, LPEI@silica hybrid nanotubes were applied to create silica-carbon composite nanotubes by alternative adsorption of ionic polymers and subsequent carbonization.
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Affiliation(s)
- Jian-Jun Yuan
- Synthetic Chemistry Lab., Kawamura Institute of Chemical Research, 631 Sakado, Sakura, 285-0078, Japan
| | - Pei-Xin Zhu
- Synthetic Chemistry Lab., Kawamura Institute of Chemical Research, 631 Sakado, Sakura, 285-0078, Japan
| | - Daisuke Noda
- Synthetic Chemistry Lab., Kawamura Institute of Chemical Research, 631 Sakado, Sakura, 285-0078, Japan
| | - Ren-Hua Jin
- Department of Material and Life Chemistry, Kanagawa University, and JST-CREST 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
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82
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Oh D, Qi J, Lu YC, Zhang Y, Shao-Horn Y, Belcher AM. Biologically enhanced cathode design for improved capacity and cycle life for lithium-oxygen batteries. Nat Commun 2013; 4:2756. [PMID: 24220635 PMCID: PMC3930201 DOI: 10.1038/ncomms3756] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Accepted: 10/11/2013] [Indexed: 11/10/2022] Open
Abstract
Lithium-oxygen batteries have a great potential to enhance the gravimetric energy density of fully packaged batteries by two to three times that of lithium ion cells. Recent studies have focused on finding stable electrolytes to address poor cycling capability and improve practical limitations of current lithium-oxygen batteries. In this study, the catalyst electrode, where discharge products are deposited and decomposed, was investigated as it has a critical role in the operation of rechargeable lithium-oxygen batteries. Here we report the electrode design principle to improve specific capacity and cycling performance of lithium-oxygen batteries by utilizing high-efficiency nanocatalysts assembled by M13 virus with earth-abundant elements such as manganese oxides. By incorporating only 3-5 wt% of palladium nanoparticles in the electrode, this hybrid nanocatalyst achieves 13,350 mAh g(-1)(c) (7,340 mAh g(-1)(c+catalyst)) of specific capacity at 0.4 A g(-1)(c) and a stable cycle life up to 50 cycles (4,000 mAh g(-1)(c), 400 mAh g(-1)(c+catalyst)) at 1 A g(-1)(c).
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Affiliation(s)
- Dahyun Oh
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jifa Qi
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yi-Chun Lu
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Electrochemical Energy Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yong Zhang
- Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yang Shao-Horn
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Electrochemical Energy Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Angela M. Belcher
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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83
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Hire CC, Oyer AJ, Macek GE, Bento JL, Adamson DH. Directed formation of silica by a non-peptide block copolymer enzyme mimic. J Mater Chem B 2013; 1:1977-1984. [DOI: 10.1039/c3tb20065e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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84
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Kasotakis E, Mitraki A. Silica biotemplating by self-assembling peptides via serine residues activated by the peptide amino terminal group. Biopolymers 2012. [DOI: 10.1002/bip.22091] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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85
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Liu XL, Zhu PX, Gao YF, Jin RH. Polyamine-Promoted Growth of One-Dimensional Nanostructure-Based Silica and Its Feature in Catalyst Design. MATERIALS 2012. [PMCID: PMC5449029 DOI: 10.3390/ma5101787] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Crystalline linear polyethyleneimine (LPEI) is a fascinating polymer that can be used as a catalyst, template and scaffold in order to direct the formation of silica with controllable compositions and spatial structures under mild conditions. Considering the crystallization and assembly of LPEI is temperature-dependent, we adopted different accelerated cooling processes of a hot aqueous solution of LPEI in order to modulate the LPEI crystalline aggregates. We then used them in the hydrolytic condensation of alkoxysilane. A series of silica with nanofibrils, nanotubes and nanowire-based structures were achieved simply by the LPEI aggregates which were pre-formed in defined cooling processes. These specific one-dimensional nanoscale structures assembled into microscale fibers-, sheet- and platelet-like coalescences. Furthermore, the deposition kinetics was also researched by the combination of other characterizations (e.g., pH measurement, 29Si MAS NMR). As a preliminary application, the hybrids of LPEI@SiO2 were used not only as an agent for reducing PtCl42− into Pt but also as host for loading Pt nanoparticles. The Pt-loaded silica showed good catalytic properties in the reduction of Rhodamine B by dimethylaminoborane (DMAB).
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Affiliation(s)
- Xin-Ling Liu
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China; E-Mails: (X.-L.L.); (Y.-F.G.)
| | - Pei-Xin Zhu
- Synthetic Chemistry Lab., Kawamura Institute of Chemical Research, 631 Sakado, Sakura 285-0078, Japan; E-Mail:
| | - Yan-Feng Gao
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China; E-Mails: (X.-L.L.); (Y.-F.G.)
| | - Ren-Hua Jin
- Department of Material and Life Chemistry, Faculty of Engineering, Kanagawa University and JST-CREST, 3-2-7 Rokkakubashi, Yokohama 221-8686, Japan
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +81-45-481-5661 (ext. 3845); Fax: +81-45-413-9770
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86
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Ngourn SC, Butts HA, Petty AR, Anderson JE, Gerdon AE. Quartz crystal microbalance analysis of DNA-templated calcium phosphate mineralization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12151-12158. [PMID: 22831705 DOI: 10.1021/la300949y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A quartz crystal microbalance (QCM) sensor was developed for the quantitation of calcium phosphate mineralization and the assessment of DNA as a template molecule. Inherent advantages of QCM, such as nanogram sensitivity, temporal resolution, surface-based measurements, and flow capabilities, were leveraged in the design of this sensor, and in-line fluidic mixing was used to control precursor reaction. This research shows that DNA, a highly programmable anionic polymer, is able to template and control mineralization of calcium phosphate, with nucleation occurring in less than 15 min and initial rates ranging from 4 to 8 ng/min. FT-IR measurements show mineralized material to be calcium phosphate resembling hydroxyapatite (HAP) when a DNA template is used. DNA is a promising mineralization template, and the QCM proves to be a dynamic technique for a broad range of heterogeneous mineralization experiments in complement to classic, diffusion-limited, end-point analysis techniques.
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Affiliation(s)
- Sunaro C Ngourn
- Emmanuel College, Boston, Massachusetts 02115, United States
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87
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Wang F, Nimmo SL, Cao B, Mao C. Oxide Formation on Biological Nanostructures via a Structure-Directing Agent: Towards an Understanding of Precise Structural Transcription. Chem Sci 2012; 3:2639-2645. [PMID: 23630644 PMCID: PMC3636809 DOI: 10.1039/c2sc00583b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biomimetic silica formation is strongly dependent on the presence of cationic amine groups which hydrolyze organosilicate precursors and bind to silicate oligomers. Since most biological species possess anionic surfaces, the dependence on amine groups limits utilization of biotemplates for fabricating materials with specific morphologies and pore structures. Here, we report a general aminopropyltriethoxysilane (APTES) directed method for preparing hollow silica with well-defined morphologies using varying biotemplates (proteins, viruses, flagella, bacteria and fungi). Control experiments, pH evolution measurements and 29Si NMR spectroscopic studies have revealed a mechanism of the assembly of APTES on bio-surfaces with subsequent nucleation and growth of silica. The APTES assembly and nuclei formation on bio-surfaces ensured precise transcription of the morphologies of biotemplates to the resulting silica. This method could be extended to the preparation of other oxides.
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Affiliation(s)
- Fuke Wang
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA
| | - Susan L. Nimmo
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA
| | - Binrui Cao
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA
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88
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Evolutionary selection of enzymatically synthesized semiconductors from biomimetic mineralization vesicles. Proc Natl Acad Sci U S A 2012; 109:E1705-14. [PMID: 22679283 DOI: 10.1073/pnas.1116958109] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The way nature evolves and sculpts materials using proteins inspires new approaches to materials engineering but is still not completely understood. Here, we present a cell-free synthetic biological platform to advance studies of biologically synthesized solid-state materials. This platform is capable of simultaneously exerting many of the hierarchical levels of control found in natural biomineralization, including genetic, chemical, spatial, structural, and morphological control, while supporting the evolutionary selection of new mineralizing proteins and the corresponding genetically encoded materials that they produce. DNA-directed protein expression and enzymatic mineralization occur on polystyrene microbeads in water-in-oil emulsions, yielding synthetic surrogates of biomineralizing cells that are then screened by flow sorting, with light-scattering signals used to sort the resulting mineralized composites differentially. We demonstrate the utility of this platform by evolutionarily selecting newly identified silicateins, biomineralizing enzymes previously identified from the silica skeleton of a marine sponge, for enzyme variants capable of synthesizing silicon dioxide (silica) or titanium dioxide (titania) composites. Mineral composites of intermediate strength are preferentially selected to remain intact for identification during cell sorting, and then to collapse postsorting to expose the encoding genes for enzymatic DNA amplification. Some of the newly selected silicatein variants catalyze the formation of crystalline silicates, whereas the parent silicateins lack this ability. The demonstrated bioengineered route to previously undescribed materials introduces in vitro enzyme selection as a viable strategy for mimicking genetic evolution of materials as it occurs in nature.
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89
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Wang L, Nilsen-Hamilton M. Biomineralization proteins: from vertebrates to bacteria. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s11515-012-1205-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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90
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Rai A, Prabhune A, Perry CC. Entrapment of commercially important invertase in silica particles at physiological pH and the effect of pH and temperature on enzyme activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.01.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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91
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Wang X, Schloßmacher U, Wiens M, Batel R, Schröder HC, Müller WEG. Silicateins, silicatein interactors and cellular interplay in sponge skeletogenesis: formation of glass fiber-like spicules. FEBS J 2012; 279:1721-36. [DOI: 10.1111/j.1742-4658.2012.08533.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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92
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Andre R, Tahir MN, Natalio F, Tremel W. Bioinspired synthesis of multifunctional inorganic and bio-organic hybrid materials. FEBS J 2012; 279:1737-49. [DOI: 10.1111/j.1742-4658.2012.08584.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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93
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Cho W, Fowler JD, Furst EM. Targeted binding of the M13 bacteriophage to thiamethoxam organic crystals. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:6013-6020. [PMID: 22404231 DOI: 10.1021/la300522g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Phage display screening with a combinatorial library was used to identify M13-type bacteriophages that express peptides with selective binding to organic crystals of thiamethoxam. The six most strongly binding phages exhibit at least 1000 times the binding affinity of wild-type M13 and express heptapeptide sequences that are rich in hydrophobic, hydrogen-bonding amino acids and proline. Among the peptide sequences identified, M13 displaying the pIII domain heptapeptide ASTLPKA exhibits the strongest binding to thiamethoxam in competitive binding assays. Electron and confocal microscopy confirm the specific binding affinity of ASTLPKA to thiamethoxam. Using atomic force microscope (AFM) probes functionalized with ASTLPKA expressing phage, we found that the average adhesion force between the bacteriophage and a thiamethoxam surface is 1.47 ± 0.80 nN whereas the adhesion force of wild-type M13KE phage is 0.18 ± 0.07 nN. Such a strongly binding bacteriophage could be used to modify the surface chemistry of thiamethoxam crystals and other organic solids with a high degree of specificity.
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Affiliation(s)
- Whirang Cho
- Department of Chemical and Biomolecular Engineering and Center for Molecular and Engineering Thermodynamics, University of Delaware, 150 Academy Street, Newark, Delaware 19716, USA
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94
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Yang SH, Ko EH, Choi IS. Cytocompatible encapsulation of individual Chlorella cells within titanium dioxide shells by a designed catalytic peptide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:2151-5. [PMID: 22149097 DOI: 10.1021/la203667z] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The individual encapsulation of living cells has a great impact on the areas of single cell-based sensors and devices as well as fundamental studies in single cell-based biology. In this work, living Chlorella cells were encapsulated individually with abiological, functionalizable TiO(2), by a designed catalytic peptide that was inspired by biosilicification of diatoms in nature. The bioinspired cytocompatible reaction conditions allowed the encapsulated Chlorella cells to maintain their viability and original shapes. After formation of the TiO(2) shells, the shells were postfunctionalized by using catechol chemistry. Our work suggests a bioinspired approach to the interfacing of individual living cells with abiological materials in a controlled manner.
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Affiliation(s)
- Sung Ho Yang
- Molecular-Level Interface Research Center, Department of Chemistry, KAIST, Daejeon 305-701, Korea
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95
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Bhandari R, Coppage R, Knecht MR. Mimicking nature's strategies for the design of nanocatalysts. Catal Sci Technol 2012. [DOI: 10.1039/c1cy00350j] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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96
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Wiens M, Link T, Elkhooly TA, Isbert S, Müller WEG. Formation of a micropatterned titania photocatalyst by microcontact printed silicatein on gold surfaces. Chem Commun (Camb) 2012; 48:11331-3. [DOI: 10.1039/c2cc35977d] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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97
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Otzen D. The role of proteins in biosilicification. SCIENTIFICA 2012; 2012:867562. [PMID: 24278750 PMCID: PMC3820600 DOI: 10.6064/2012/867562] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 09/24/2012] [Indexed: 05/19/2023]
Abstract
Although the use of silicon dioxide (silica) as a constituent of living organisms is mainly restricted to diatoms and sponges, the ways in which this process is controlled by nature continue to inspire and fascinate. Both diatoms and sponges carry out biosilificiation using an organic matrix but they adopt very different strategies. Diatoms use small and heavily modified peptides called silaffins, where the most characteristic feature is a modulation of charge by attaching long chain polyamines (LCPAs) to lysine groups. Free LCPAs can also cooperate with silaffins. Sponges use the enzyme silicatein which is homologous to the cysteine protease cathepsin. Both classes of proteins form higher-order structures which act both as structural templates and mechanistic catalysts for the polycondensation reaction. In both cases, additional proteins are continuously being discovered which modulate the process further. This paper concentrates on the role of these proteins in the biosilification process as well as in various applications, highlighting areas where focus on specific protein properties may provide further insight. The field of biosilification is a crossroads of different disciplines, where insight into the energetics and mechanisms of molecular self-assembly combine with fundamental biology, complex multicomponent colloidal systems, and an impressive array of potential technological applications.
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Affiliation(s)
- Daniel Otzen
- Interdisciplinary Nanoscience Center (iNANO), Center for Insoluble Protein Structures (inSPIN), and Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
- *Daniel Otzen:
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98
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Yuan JJ, Jin RH. Temporally and spatially controlled silicification for self-generating polymer@silica hybrid nanotube on substrates with tunable film nanostructure. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15993g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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99
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Liu B, Han L, Che S. Formation of Enantiomeric Impeller-Like Helical Architectures by DNA Self-Assembly and Silica Mineralization. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105445] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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100
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Liu B, Han L, Che S. Formation of Enantiomeric Impeller-Like Helical Architectures by DNA Self-Assembly and Silica Mineralization. Angew Chem Int Ed Engl 2011; 51:923-7. [DOI: 10.1002/anie.201105445] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 10/18/2011] [Indexed: 11/09/2022]
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