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Ordering of quantum dots using genetically engineered viruses (2002)

S. W. Lee ; C. Mao ; C. E. Flynn ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 296(5569): 892-5. doi: 10.1126/science.1068054.

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Publication Date: 2002-05-04

Description: A liquid crystal system was used for the fabrication of a highly ordered composite material from genetically engineered M13 bacteriophage and zinc sulfide (ZnS) nanocrystals. The bacteriophage, which formed the basis of the self-ordering system, were selected to have a specific recognition moiety for ZnS crystal surfaces. The bacteriophage were coupled with ZnS solution precursors and spontaneously evolved a self-supporting hybrid film material that was ordered at the nanoscale and at the micrometer scale into approximately 72-micrometer domains, which were continuous over a centimeter length scale. In addition, suspensions were prepared in which the lyotropic liquid crystalline phase behavior of the hybrid material was controlled by solvent concentration and by the use of a magnetic field.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Seung-Wuk -- Mao, Chuanbin -- Flynn, Christine E -- Belcher, Angela M -- New York, N.Y. -- Science. 2002 May 3;296(5569):892-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, Center for Nano- and Molecular Science and Technology, Texas Materials Institute, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11988570" target="_blank"〉PubMed〈/a〉

Keywords: *Bacteriophage M13/chemistry/genetics/ultrastructure ; Capsid/*chemistry/genetics/metabolism ; *Capsid Proteins ; Cloning, Molecular ; Crystallization ; *Genetic Engineering ; Membrane Proteins/*chemistry/genetics/metabolism ; Micelles ; Microscopy, Atomic Force ; Microscopy, Electron ; Microscopy, Electron, Scanning ; *Nanotechnology ; Oligopeptides/*chemistry/metabolism ; Particle Size ; Peptide Library ; Polymers/*chemistry ; Sulfides/*chemistry/metabolism ; Zinc Compounds/*chemistry/metabolism

Print ISSN: 0036-8075

Electronic ISSN: 1095-9203

Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

Published by American Association for the Advancement of Science (AAAS)

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Virus-enabled synthesis and assembly of nanowires for lithium ion battery electrodes (2006)

K. T. Nam ; D. W. Kim ; P. J. Yoo ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 312(5775): 885-8. doi: 10.1126/science.1122716.

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Publication Date: 2006-04-08

Description: The selection and assembly of materials are central issues in the development of smaller, more flexible batteries. Cobalt oxide has shown excellent electrochemical cycling properties and is thus under consideration as an electrode for advanced lithium batteries. We used viruses to synthesize and assemble nanowires of cobalt oxide at room temperature. By incorporating gold-binding peptides into the filament coat, we formed hybrid gold-cobalt oxide wires that improved battery capacity. Combining virus-templated synthesis at the peptide level and methods for controlling two-dimensional assembly of viruses on polyelectrolyte multilayers provides a systematic platform for integrating these nanomaterials to form thin, flexible lithium ion batteries.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nam, Ki Tae -- Kim, Dong-Wan -- Yoo, Pil J -- Chiang, Chung-Yi -- Meethong, Nonglak -- Hammond, Paula T -- Chiang, Yet-Ming -- Belcher, Angela M -- New York, N.Y. -- Science. 2006 May 12;312(5775):885-8. Epub 2006 Apr 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16601154" target="_blank"〉PubMed〈/a〉

Keywords: *Bacteriophage M13/chemistry/genetics ; Capsid Proteins/chemistry ; *Cobalt/chemistry ; Crystallization ; Electric Conductivity ; *Electric Power Supplies ; Electrochemistry ; *Electrodes ; Gold ; Lithium ; Microscopy, Electron, Transmission ; *Nanostructures ; *Nanotechnology ; *Oxides/chemistry ; Peptide Library ; Protein Engineering ; Temperature ; Thermodynamics

Print ISSN: 0036-8075

Electronic ISSN: 1095-9203

Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

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Virus-based toolkit for the directed synthesis of magnetic and semiconducting nanowires (2004)

C. Mao ; D. J. Solis ; B. D. Reiss ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 303(5655): 213-7. doi: 10.1126/science.1092740.

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Publication Date: 2004-01-13

Description: We report a virus-based scaffold for the synthesis of single-crystal ZnS, CdS, and freestanding chemically ordered CoPt and FePt nanowires, with the means of modifying substrate specificity through standard biological methods. Peptides (selected through an evolutionary screening process) that exhibit control of composition, size, and phase during nanoparticle nucleation have been expressed on the highly ordered filamentous capsid of the M13 bacteriophage. The incorporation of specific, nucleating peptides into the generic scaffold of the M13 coat structure provides a viable template for the directed synthesis of semiconducting and magnetic materials. Removal of the viral template by means of annealing promoted oriented aggregation-based crystal growth, forming individual crystalline nanowires. The unique ability to interchange substrate-specific peptides into the linear self-assembled filamentous construct of the M13 virus introduces a material tunability that has not been seen in previous synthetic routes. Therefore, this system provides a genetic toolkit for growing and organizing nanowires from semiconducting and magnetic materials.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mao, Chuanbin -- Solis, Daniel J -- Reiss, Brian D -- Kottmann, Stephen T -- Sweeney, Rozamond Y -- Hayhurst, Andrew -- Georgiou, George -- Iverson, Brent -- Belcher, Angela M -- New York, N.Y. -- Science. 2004 Jan 9;303(5655):213-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Chemistry and Biochemistry, University of Texas (UT) at Austin, Austin, TX 78712, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14716009" target="_blank"〉PubMed〈/a〉

Keywords: Alloys/chemistry ; *Bacteriophage M13/genetics/metabolism ; Cadmium Compounds/chemistry ; Capsid/metabolism ; Crystallization ; *Magnetics ; Monte Carlo Method ; Nanotechnology/*methods ; Peptide Library ; *Peptides/chemistry/metabolism ; Platinum Compounds/chemistry ; Recombinant Fusion Proteins/chemistry/metabolism ; *Semiconductors ; Sulfides/chemistry ; Thermodynamics ; Zinc Compounds

Print ISSN: 0036-8075

Electronic ISSN: 1095-9203

Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

Published by American Association for the Advancement of Science (AAAS)

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Fabricating genetically engineered high-power lithium-ion batteries using multiple virus genes (2009)

Y. J. Lee ; H. Yi ; W. J. Kim ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 324(5930): 1051-5. doi: 10.1126/science.1171541.

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Publication Date: 2009-04-04

Description: Development of materials that deliver more energy at high rates is important for high-power applications, including portable electronic devices and hybrid electric vehicles. For lithium-ion (Li+) batteries, reducing material dimensions can boost Li+ ion and electron transfer in nanostructured electrodes. By manipulating two genes, we equipped viruses with peptide groups having affinity for single-walled carbon nanotubes (SWNTs) on one end and peptides capable of nucleating amorphous iron phosphate(a-FePO4) fused to the viral major coat protein. The virus clone with the greatest affinity toward SWNTs enabled power performance of a-FePO4 comparable to that of crystalline lithium iron phosphate (c-LiFePO4) and showed excellent capacity retention upon cycling at 1C. This environmentally benign low-temperature biological scaffold could facilitate fabrication of electrodes from materials previously excluded because of extremely low electronic conductivity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Yun Jung -- Yi, Hyunjung -- Kim, Woo-Jae -- Kang, Kisuk -- Yun, Dong Soo -- Strano, Michael S -- Ceder, Gerbrand -- Belcher, Angela M -- New York, N.Y. -- Science. 2009 May 22;324(5930):1051-5. doi: 10.1126/science.1171541. Epub 2009 Apr 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342549" target="_blank"〉PubMed〈/a〉

Keywords: Bacteriophage M13/chemistry/*genetics ; *Bioelectric Energy Sources ; Capsid Proteins/chemistry/*genetics ; Electric Conductivity ; Electrochemistry ; *Electrodes ; Ferrous Compounds/chemistry ; Genes, Viral ; Genetic Engineering ; Lithium/*chemistry ; Metal Nanoparticles ; *Nanotubes, Carbon ; *Nanowires ; Phosphates/chemistry ; Silver

Print ISSN: 0036-8075

Electronic ISSN: 1095-9203

Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

Published by American Association for the Advancement of Science (AAAS)

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Computerized pattern recognition: a new technique for the analysis of chemical communication (1985)

A. B. Smith, 3rd ; A. M. Belcher ; G. Epple ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 228(4696): 175-7.

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Publication Date: 1985-04-12

Description: Computerized pattern recognition techniques can be applied to the study of complex chemical communication systems. Analysis of high resolution gas chromatographic concentration patterns of the major volatile components of the scent marks of a South American primate, Saguinus fuscicollis, demonstrates that the concentration patterns can be used to predict the gender and subspecies of unknown donors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, A B 3rd -- Belcher, A M -- Epple, G -- Jurs, P C -- Lavine, B -- 5 T32 NSO7176-03/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1985 Apr 12;228(4696):175-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3975636" target="_blank"〉PubMed〈/a〉

Keywords: Animals ; Chemical Phenomena ; Chemistry ; Chromatography, Gas ; *Computers ; Female ; Male ; *Pattern Recognition, Automated ; Pheromones/*physiology ; Saguinus/physiology ; Scent Glands/physiology ; Sex Attractants/*physiology ; Structure-Activity Relationship

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Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

Published by American Association for the Advancement of Science (AAAS)

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6

Electronic Resource

Control of crystal phase switching and orientation by soluble mollusc-shell proteins (1996)

Belcher, A. M. ; Wu, X. H. ; Christensen, R. J. ; [et al.]

[s.l.] : Nature Publishing Group

Nature 381 (1996), S. 56-58

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ISSN: 1476-4687

Source: Nature Archives 1869 - 2009

Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics

Notes: [Auszug] The molluscan shell is a microlaminate composite of mineral and biopolymers exhibiting exceptional nanoscale regularity3, and a strength 3,000 times greater than that of the crystals themselves11. Although the integral proteins typically comprise 〈 2 wt% of the shell, they determine the ...

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1038/381056a0

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Electronic Resource

Analysis of chemical signals in a primate species (Saguinus fuscicollis): Use of behavioral, chemical, and pattern recognition methods (1986)

Belcher, A. M. ; Smith, A. B. ; Jurs, P. C. ; [et al.]

Springer

Journal of chemical ecology 12 (1986), S. 513-531

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ISSN: 1573-1561

Keywords: Chemical communication ; scent marking ; pattern recognition ; Saguinus fuscicollis ; GC-MS ; primate ; tamarin ; skin secretions ; n-butyrate esters ; concentration profiles

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Chemistry and Pharmacology

Notes: Abstract Scent marking with specialized skin glands is a common behavior in the tamarin,Saguinus fuscicollis. The scent marks identify species, subspecies, gender, and individual, and they also contain information on the social position and hormonal condition of an animal. The marks are chemically complex, containing a large number of compounds. Analysis by means of gas chromatography-mass spectrometry has identified 16 major components (squalene and 15 esters of butyric acid). These compounds are present in the marks of males and females of two subspecies,Saguinus f. fuscicollis andSaguinus f. illigeri. Application of computerized pattern recognition techniques has shown that concentration patterns of some of the butyrates are diagnostic of the two subspecies while concentration patterns of other butyrates are diagnostic of males and females regardless of subspecies. Behavioral studies have shown that the concentration patterns of butyrates and squalene alone do not encode information on subspecies and gender. It is, however, likely that this information is partially encoded by these specific butyrate-squalene concentration patterns but that yet unidentified compounds in the scent marks serve as necessary synergists.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01020570

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