Latest Articles Include:
- Resistance is futile
- Nature nanotechnology 5(1):1 (2010)
ARTICLE NAVIGATION - ISSUE Previous January 2010, Volume 5 No 1 pp1-87 * Editorials * Thesis * Feature * Research Highlights * News and Views * Review * Letters * ArticlesAbout the cover Editorials Resistance is futile - p1 doi:10.1038/nnano.2010.476 Research into superconductivity is now firmly in the nanoscale regime. Full Text - Resistance is futile | PDF (113 KB) - Resistance is futile Subject Category: Electronic properties and devices Minor revisions - p1 doi:10.1038/nnano.2010.477 We have made some nanochanges. Full Text - Minor revisions | PDF (113 KB) - Minor revisions Thesis Images and icons - pp3 - 4 Chris Toumey doi:10.1038/nnano.2009.458 Nanoscale objects cannot be seen in the traditional sense, but that should not stop us from thinking about how we visualize the nanoworld, as Chris Toumey reports. Full Text - Images and icons | PDF (386 KB) - Images and icons Subject Category: Ethical, legal and other societal issues Feature A golden opportunity - pp5 - 7 Owain Vaughan doi:10.1038/nnano.2009.463 Gold has risen from relative obscurity to command a place at the forefront of catalysis research, but when will nanoscale gold catalysts be ready for industrial applications? Full Text - A golden opportunity | PDF (311 KB) - A golden opportunity Subject Category: Synthesis and processing Research Highlights Our choice from the recent literature - p8 doi:10.1038/nnano.2009.462 Full Text - Our choice from the recent literature | PDF (193 KB) - Our choice from the recent literature News and Views Nanomedicine: Barcodes check out prostate cancer - pp9 - 10 Stephen Hearty, Paul Leonard & Richard O'Kennedy doi:10.1038/nnano.2009.459 An assay based on gold nanoparticles could detect recurrences of prostate cancer sooner than is possible with existing techniques. Full Text - NanomedicineBarcodes check out prostate cancer | PDF (170 KB) - NanomedicineBarcodes check out prostate cancer Subject Category: Nanomedicine Photonic–plasmonic devices: A 7-nm light pen makes its mark - pp10 - 11 Nikolay I. Zheludev doi:10.1038/nnano.2009.460 An optical probe has been developed for the chemical mapping of materials at the nanoscale by combining plasmonics, Raman spectroscopy and atomic force microscopy. Full Text - Photonic–plasmonic devicesA 7-nm light pen makes its mark | PDF (160 KB) - Photonic–plasmonic devicesA 7-nm light pen makes its mark Subject Categories: Photonic structures and devices | Surface patterning and imaging See also:Article by De Angelis et al. Quantum devices: Towards entangled electrons - pp11 - 12 Christoph Strunk doi:10.1038/nnano.2009.464 A new method has been developed for extracting Cooper pairs from a superconductor and splitting them. The next challenge is to show that these unpaired electrons are entangled. Full Text - Quantum devicesTowards entangled electrons | PDF (202 KB) - Quantum devicesTowards entangled electrons Subject Categories: Electronic properties and devices | Quantum information Fuel additives: Graphene helps fuel burn faster - p12 Tim Reid doi:10.1038/nnano.2009.475 Full Text - Fuel additivesGraphene helps fuel burn faster | PDF (183 KB) - Fuel additivesGraphene helps fuel burn faster Subject Category: Nanomaterials Oxide materials: Superconductivity on the other side - pp13 - 14 Stefano Gariglio, Marc Gabay & Jean-Marc Triscone doi:10.1038/nnano.2009.461 Using oxide interface engineering, researchers have shown that a single layer of copper and oxygen atoms can support superconductivity in a bilayer structure made from a metal and an insulator. Full Text - Oxide materialsSuperconductivity on the other side | PDF (214 KB) - Oxide materialsSuperconductivity on the other side Subject Category: Electronic properties and devices Review Properties and emerging applications of self-assembled structures made from inorganic nanoparticles - pp15 - 25 Zhihong Nie, Alla Petukhova & Eugenia Kumacheva doi:10.1038/nnano.2009.453 Self-assembly is a powerful technique for controlling the structure and properties of ensembles of inorganic nanoparticles. This article reviews the properties and potential applications of self-assembled structures made from nanoparticles. Abstract - Properties and emerging applications of self-assembled structures made from inorganic nanoparticles | Full Text - Properties and emerging applications of self-assembled structures made from inorganic nanoparticles | PDF (1,195 KB) - Properties and emerging applications of self-assembled structures made from inorganic nanoparticles Subject Categories: Molecular self-assembly | Nanoparticles | Synthesis and processing Letters Efficient narrow-band light emission from a single carbon nanotube p–n diode - pp27 - 31 Thomas Mueller, Megumi Kinoshita, Mathias Steiner, Vasili Perebeinos, Ageeth A. Bol, Damon B. Farmer & Phaedon Avouris doi:10.1038/nnano.2009.319 Electrically induced light emission from an individual carbon nanotube p–n diode is both more efficient and has a narrower spectrum than previously demonstrated, allowing emission from free and localized excitons to be identified. Abstract - Efficient narrow-band light emission from a single carbon nanotube p-n diode | Full Text - Efficient narrow-band light emission from a single carbon nanotube p–n diode | PDF (688 KB) - Efficient narrow-band light emission from a single carbon nanotube p–n diode | Supplementary information Subject Categories: Carbon nanotubes and fullerenes | Photonic structures and devices A tunable phonon–exciton Fano system in bilayer graphene - pp32 - 36 Tsung-Ta Tang, Yuanbo Zhang, Cheol-Hwan Park, Baisong Geng, Caglar Girit, Zhao Hao, Michael C. Martin, Alex Zettl, Michael F. Crommie, Steven G. Louie, Y. Ron Shen & Feng Wang doi:10.1038/nnano.2009.334 A new hybrid phonon–exciton excited state in bilayer graphene can be tuned electrically, with possible application to phonon lasers. Abstract - A tunable phonon-exciton Fano system in bilayer graphene | Full Text - A tunable phonon–exciton Fano system in bilayer graphene | PDF (867 KB) - A tunable phonon–exciton Fano system in bilayer graphene | Supplementary information Subject Category: Nanomaterials Ferromagnetic domain nucleation and growth in colossal magnetoresistive manganite - pp37 - 41 Y. Murakami, H. Kasai, J. J. Kim, S. Mamishin, D. Shindo, S. Mori & A. Tonomura doi:10.1038/nnano.2009.342 Direct observations of domain walls and flux distributions in manganite have shed new light on the dynamics of the ferromagnetic phase in colossal magnetoresistance. Abstract - Ferromagnetic domain nucleation and growth in colossal magnetoresistive manganite | Full Text - Ferromagnetic domain nucleation and growth in colossal magnetoresistive manganite | PDF (3,393 KB) - Ferromagnetic domain nucleation and growth in colossal magnetoresistive manganite | Supplementary information Subject Categories: Nanomagnetism and spintronics | Surface patterning and imaging Design considerations for tumour-targeted nanoparticles - pp42 - 47 Hak Soo Choi, Wenhao Liu, Fangbing Liu, Khaled Nasr, Preeti Misra, Moungi G. Bawendi & John V. Frangioni doi:10.1038/nnano.2009.314 Nanoparticles functionalized with ligands that target tumours can be cleared from the body through the kidneys if they have a hydrodynamic diameter of less than 5.5 nm. Abstract - Design considerations for tumour-targeted nanoparticles | Full Text - Design considerations for tumour-targeted nanoparticles | PDF (579 KB) - Design considerations for tumour-targeted nanoparticles | Supplementary information Subject Category: Nanomedicine A novel intracellular protein delivery platform based on single-protein nanocapsules - pp48 - 53 Ming Yan, Juanjuan Du, Zhen Gu, Min Liang, Yufang Hu, Wenjun Zhang, Saul Priceman, Lily Wu, Z. Hong Zhou, Zheng Liu, Tatiana Segura, Yi Tang & Yunfeng Lu doi:10.1038/nnano.2009.341 Nanocapsules with polymeric shells can effectively deliver proteins into cells to trigger the activity of its substrates that are inside the cells. Abstract - A novel intracellular protein delivery platform based on single-protein nanocapsules | Full Text - A novel intracellular protein delivery platform based on single-protein nanocapsules | PDF (815 KB) - A novel intracellular protein delivery platform based on single-protein nanocapsules | Supplementary information Subject Categories: Nanomedicine | Nanoparticles Articles Dispersed nanoelectrode devices - pp54 - 60 Antonio Tricoli & Sotiris E. Pratsinis doi:10.1038/nnano.2009.349 A nanoscale electrode assembly consisting of nanoparticles with tailored conductivity deposited above or below a functional nanoparticle film is demonstrated in sensor devices that achieve 20 ppb ethanol gas sensitivity. Abstract - Dispersed nanoelectrode devices | Full Text - Dispersed nanoelectrode devices | PDF (676 KB) - Dispersed nanoelectrode devices Subject Categories: Electronic properties and devices | Nanoparticles | Nanosensors and other devices Self-assembly of carbon nanotubes into two-dimensional geometries using DNA origami templates - pp61 - 66 Hareem T. Maune, Si-ping Han, Robert D. Barish, Marc Bockrath, William A. Goddard III, Paul W. K. Rothemund & Erik Winfree doi:10.1038/nnano.2009.311 Single-walled carbon nanotubes can be self-assembled into cross junctions using DNA origami, establishing these structures as programmable nanobreadboards. Abstract - Self-assembly of carbon nanotubes into two-dimensional geometries using DNA origami templates | Full Text - Self-assembly of carbon nanotubes into two-dimensional geometries using DNA origami templates | PDF (846 KB) - Self-assembly of carbon nanotubes into two-dimensional geometries using DNA origami templates | Supplementary information Subject Categories: Carbon nanotubes and fullerenes | Molecular self-assembly Nanoscale chemical mapping using three-dimensional adiabatic compression of surface plasmon polaritons - pp67 - 72 Francesco De Angelis, Gobind Das, Patrizio Candeloro, Maddalena Patrini, Matteo Galli, Alpan Bek, Marco Lazzarino, Ivan Maksymov, Carlo Liberale, Lucio Claudio Andreani & Enzo Di Fabrizio doi:10.1038/nnano.2009.348 A photonic–plasmonic device — which can be used as a tip for an atomic force microscope and also as a nanoscale light source for near-field Raman excitation — allows topographic, chemical and structural information to be obtained with a spatial resolution of 7 nm. Abstract - Nanoscale chemical mapping using three-dimensional adiabatic compression of surface plasmon polaritons | Full Text - Nanoscale chemical mapping using three-dimensional adiabatic compression of surface plasmon polaritons | PDF (2,673 KB) - Nanoscale chemical mapping using three-dimensional adiabatic compression of surface plasmon polaritons | Supplementary information Subject Categories: Photonic structures and devices | Surface patterning and imaging See also:News and Views by Zheludev Self-organized photosynthetic nanoparticle for cell-free hydrogen production - pp73 - 79 Ifeyinwa J. Iwuchukwu, Michael Vaughn, Natalie Myers, Hugh O'Neill, Paul Frymier & Barry D. Bruce doi:10.1038/nnano.2009.315 Photosynthetic nanoparticles obtained from a thermophilic bacterium can produce a stable supply of hydrogen at temperatures up to 55 °C with a yield that is approximately 25 times greater than current hydrogen production strategies. Abstract - Self-organized photosynthetic nanoparticle for cell-free hydrogen production | Full Text - Self-organized photosynthetic nanoparticle for cell-free hydrogen production | PDF (1,992 KB) - Self-organized photosynthetic nanoparticle for cell-free hydrogen production | Supplementary information Subject Categories: Nanobiotechnology | Nanomaterials | Nanoparticles Effective repair of traumatically injured spinal cord by nanoscale block copolymer micelles - pp80 - 87 Yunzhou Shi, Sungwon Kim, Terry B. Huff, Richard B. Borgens, Kinam Park, Riyi Shi & Ji-Xin Cheng doi:10.1038/nnano.2009.303 Tiny copolymer micelles can effectively restore locomotion in rats after spinal cord injury. Abstract - Effective repair of traumatically injured spinal cord by nanoscale block copolymer micelles | Full Text - Effective repair of traumatically injured spinal cord by nanoscale block copolymer micelles | PDF (6,047 KB) - Effective repair of traumatically injured spinal cord by nanoscale block copolymer micelles | Supplementary information Subject Category: Nanomedicine - Minor revisions
- Nature nanotechnology 5(1):1 (2010)
Research into superconductivity is now firmly in the nanoscale regime. - Images and icons
Toumey C - Nature nanotechnology 5(1):3-4 (2010)
We have made some nanochanges. - A golden opportunity
Vaughan O - Nature nanotechnology 5(1):5-7 (2010)
Nanoscale objects cannot be seen in the traditional sense, but that should not stop us from thinking about how we visualize the nanoworld, as Chris Toumey reports. - Our choice from the recent literature
- Nature nanotechnology 5(1):8 (2010)
Photonic nanostructures: Laser tuning X-ray optics: Hard work pays off Zeolite synthesis: Added value Nanowire growth: Solid progress - Nanomedicine: Barcodes check out prostate cancer
Hearty S Leonard P O'Kennedy R - Nature nanotechnology 5(1):9-10 (2010)
Gold has risen from relative obscurity to command a place at the forefront of catalysis research, but when will nanoscale gold catalysts be ready for industrial applications? - Photonic–plasmonic devices: A 7-nm light pen makes its mark
Zheludev NI - Nature nanotechnology 5(1):10-11 (2010)
An assay based on gold nanoparticles could detect recurrences of prostate cancer sooner than is possible with existing techniques. - Quantum devices: Towards entangled electrons
Strunk C - Nature nanotechnology 5(1):11-12 (2010)
An optical probe has been developed for the chemical mapping of materials at the nanoscale by combining plasmonics, Raman spectroscopy and atomic force microscopy. - Fuel additives: Graphene helps fuel burn faster
Reid T - Nature nanotechnology 5(1):12 (2010)
Advanced high-speed propulsion systems will require environmentally friendly fuels that offer high energy densities, short ignition times and low costs. However, rather than developing new fuels, many researchers are trying to improve the performance of existing fuels by adding low concentrations of colloids to boost performance. - Oxide materials: Superconductivity on the other side
Gariglio S Gabay M Triscone JM - Nature nanotechnology 5(1):13-14 (2010)
A new method has been developed for extracting Cooper pairs from a superconductor and splitting them. The next challenge is to show that these unpaired electrons are entangled. - Properties and emerging applications of self-assembled structures made from inorganic nanoparticles
Nie Z Petukhova A Kumacheva E - Nature nanotechnology 5(1):15-25 (2010)
Using oxide interface engineering, researchers have shown that a single layer of copper and oxygen atoms can support superconductivity in a bilayer structure made from a metal and an insulator. - Efficient narrow-band light emission from a single carbon nanotube p–n diode
Mueller T Kinoshita M Steiner M Perebeinos V Bol AA Farmer DB Avouris P - Nature nanotechnology 5(1):27-31 (2010)
Just as nanoparticles display properties that differ from those of bulk samples of the same material, ensembles of nanoparticles can have collective properties that are different to those displayed by individual nanoparticles and bulk samples. Self-assembly has emerged as a powerful technique for controlling the structure and properties of ensembles of inorganic nanoparticles. Here we review different strategies for nanoparticle self-assembly, the properties of self-assembled structures of nanoparticles, and potential applications of such structures. Many of these properties and possible applications rely on our ability to control the interactions between the electronic, magnetic and optical properties of the individual nanoparticles. - A tunable phonon–exciton Fano system in bilayer graphene
Tang TT Zhang Y Park CH Geng B Girit C Hao Z Martin MC Zettl A Crommie MF Louie SG Shen YR Wang F - Nature nanotechnology 5(1):32-36 (2010)
Electrically driven light emission from carbon nanotubes1, 2, 3, 4, 5, 6, 7, 8 could be used in nanoscale lasers9 and single-photon sources10, and has therefore been the focus of much research. However, high electric fields and currents have either been necessary for electroluminescence4, 5, 6, 7, 8, or have been an undesired side effect2, 3, leading to high power requirements and low efficiencies. Furthermore, electroluminescent linewidths have been broad enough to obscure the contributions of individual optical transitions. Here, we report electrically induced light emission from individual carbon nanotube p–n diodes. A new level of control over electrical carrier injection is achieved, reducing power dissipation by a factor of up to 1,000, and resulting in zero threshold current, negligible self-heating and high carrier-to-photon conversion efficiencies. Moreover, the electroluminescent spectra are significantly narrower (~35 meV) than in previous studies1, 2, 3, ! 4, 5, 6, 7, 8, allowing the identification of emission from free and localized excitons. - Ferromagnetic domain nucleation and growth in colossal magnetoresistive manganite
Murakami Y Kasai H Kim JJ Mamishin S Shindo D Mori S Tonomura A - Nature nanotechnology 5(1):37-41 (2010)
From the following article Efficient narrow-band light emission from a single carbon nanotube p–n diode Thomas Mueller, Megumi Kinoshita, Mathias Steiner, Vasili Perebeinos, Ageeth A. Bol, Damon B. Farmer & Phaedon Avouris Nature Nanotechnology 5, 27 - 31 (2010) Published online: 15 November 2009 doi:10.1038/nnano.2009.319 BACK TO ARTICLE Download plugins and applications Supplementary information Supplementary information Supplementary information - Download PDF file (1,126 KB) BACK TO ARTICLE DOWNLOAD PLUGINS FOR YOUR BROWSER Movie files * QuickTime Player (PC or Mac) * Realplayer (PC or Mac) * Windows Media player (PC only) PDF douments * Adobe Acrobat Reader (PC or Mac) Text documents * Textpad (PC only) * SimpleText (Mac only) PostScript documents * GhostView (Mac and PC) Flash movies * Macromedia Flash Player Audio files * Apple iTunes (PC or Mac) * QuickTime Player (PC or Mac) * Realplayer (PC or Mac) * Windows Media player (PC only) Chemical structures * MDL Chime Microarray * Treeview Compressed Stuff files * StuffIt Expander Compressed Zip files * WinZip (PC only) Systems Biology Markup Language files (SBML) * More information about SMBL Chemical Markup language files (CML) * More information about CML BACK TO ARTICLE - Design considerations for tumour-targeted nanoparticles
Choi HS Liu W Liu F Nasr K Misra P Bawendi MG Frangioni JV - Nature nanotechnology 5(1):42-47 (2010)
Colossal magnetoresistance is a dramatic decrease in resistivity caused by applied magnetic fields1, 2, 3, 4, and has been the focus of much research because of its potential for magnetic data storage using materials such as manganites. Although extensive microscopy and theoretical studies5, 6, 7, 8, 9, 10, 11 have shown that colossal magnetoresistance involves competing insulating and ferromagnetic conductive phases, the mechanism underlying the effect remains unclear. Here, by directly observing magnetic domain walls and flux distributions using cryogenic Lorentz microscopy and electron holography12, 13, 14, we demonstrate that an applied magnetic field assists nucleation and growth of an ordered ferromagnetic phase. These results provide new insights into the evolution dynamics of complex domain structures at the nanoscale, and help to explain anomalous phase separation phenomena that are relevant for applications3, 15, 16, 17, 18, 19. Our approach can also be used ! to determine magnetic parameters of nanoscale regions, such as magnetocrystalline anisotropy and exchange stiffness, without bulk magnetization results or neutron scattering data. - A novel intracellular protein delivery platform based on single-protein nanocapsules
Yan M Du J Gu Z Liang M Hu Y Zhang W Priceman S Wu L Zhou ZH Liu Z Segura T Tang Y Lu Y - Nature nanotechnology 5(1):48-53 (2010)
From the following article Ferromagnetic domain nucleation and growth in colossal magnetoresistive manganite Y. Murakami, H. Kasai, J. J. Kim, S. Mamishin, D. Shindo, S. Mori & A. Tonomura Nature Nanotechnology 5, 37 - 41 (2010) Published online: 29 November 2009 doi:10.1038/nnano.2009.342 BACK TO ARTICLE Download plugins and applications Supplementary information Supplementary information Supplementary information - Download PDF file (600 KB) Supplementary information Supplementary movie 1 Supplementary information - Download Movie (8,805 KB) Supplementary information Supplementary movie 2 Supplementary information - Download Movie (8,997 KB) BACK TO ARTICLE DOWNLOAD PLUGINS FOR YOUR BROWSER Movie files * QuickTime Player (PC or Mac) * Realplayer (PC or Mac) * Windows Media player (PC only) PDF douments * Adobe Acrobat Reader (PC or Mac) Text documents * Textpad (PC only) * SimpleText (Mac only) PostScript documents * GhostView (Mac and PC) Flash movies * Macromedia Flash Player Audio files * Apple iTunes (PC or Mac) * QuickTime Player (PC or Mac) * Realplayer (PC or Mac) * Windows Media player (PC only) Chemical structures * MDL Chime Microarray * Treeview Compressed Stuff files * StuffIt Expander Compressed Zip files * WinZip (PC only) Systems Biology Markup Language files (SBML) * More information about SMBL Chemical Markup language files (CML) * More information about CML BACK TO ARTICLE - Dispersed nanoelectrode devices
Tricoli A Pratsinis SE - Nature nanotechnology 5(1):54-60 (2010)
An average cell contains thousands of proteins that participate in normal cellular functions, and most diseases are somehow related to the malfunctioning of one or more of these proteins. Protein therapy1, which delivers proteins into the cell to replace the dysfunctional protein, is considered the most direct and safe approach for treating disease. However, the effectiveness of this method has been limited by its low delivery efficiency and poor stability against proteases in the cell, which digest the protein. Here, we show a novel delivery platform based on nanocapsules consisting of a protein core and a thin permeable polymeric shell that can be engineered to either degrade or remain stable at different pHs. Non-degradable capsules show long-term stability, whereas the degradable ones break down their shells, enabling the core protein to be active once inside the cells. Multiple proteins can be delivered to cells with high efficiency while maintaining low toxicity,! suggesting potential applications in imaging, therapy and cosmetics fields. - Self-assembly of carbon nanotubes into two-dimensional geometries using DNA origami templates
Maune HT Han SP Barish RD Bockrath M Iii WA Rothemund PW Winfree E - Nature nanotechnology 5(1):61-66 (2010)
From the following article A novel intracellular protein delivery platform based on single-protein nanocapsules Ming Yan, Juanjuan Du, Zhen Gu, Min Liang, Yufang Hu, Wenjun Zhang, Saul Priceman, Lily Wu, Z. Hong Zhou, Zheng Liu, Tatiana Segura, Yi Tang & Yunfeng Lu Nature Nanotechnology 5, 48 - 53 (2010) Published online: 22 November 2009 doi:10.1038/nnano.2009.341 BACK TO ARTICLE Download plugins and applications Supplementary information Supplementary information Supplementary information - Download PDF file (1,612 KB) BACK TO ARTICLE DOWNLOAD PLUGINS FOR YOUR BROWSER Movie files * QuickTime Player (PC or Mac) * Realplayer (PC or Mac) * Windows Media player (PC only) PDF douments * Adobe Acrobat Reader (PC or Mac) Text documents * Textpad (PC only) * SimpleText (Mac only) PostScript documents * GhostView (Mac and PC) Flash movies * Macromedia Flash Player Audio files * Apple iTunes (PC or Mac) * QuickTime Player (PC or Mac) * Realplayer (PC or Mac) * Windows Media player (PC only) Chemical structures * MDL Chime Microarray * Treeview Compressed Stuff files * StuffIt Expander Compressed Zip files * WinZip (PC only) Systems Biology Markup Language files (SBML) * More information about SMBL Chemical Markup language files (CML) * More information about CML BACK TO ARTICLE - Nanoscale chemical mapping using three-dimensional adiabatic compression of surface plasmon polaritons
De Angelis F Das G Candeloro P Patrini M Galli M Bek A Lazzarino M Maksymov I Liberale C Andreani LC Di Fabrizio E - Nature nanotechnology 5(1):67-72 (2010)
A central challenge in nanotechnology is the parallel fabrication of complex geometries for nanodevices. Here we report a general method for arranging single-walled carbon nanotubes in two dimensions using DNA origami—a technique in which a long single strand of DNA is folded into a predetermined shape. We synthesize rectangular origami templates (~75 nm × 95 nm) that display two lines of single-stranded DNA 'hooks' in a cross pattern with ~6 nm resolution. The perpendicular lines of hooks serve as sequence-specific binding sites for two types of nanotubes, each functionalized non-covalently with a distinct DNA linker molecule. The hook-binding domain of each linker is protected to ensure efficient hybridization. When origami templates and DNA-functionalized nanotubes are mixed, strand displacement-mediated deprotection and binding aligns the nanotubes into cross-junctions. Of several cross-junctions synthesized by this method, one demonstrated stable field-effe! ct transistor-like behaviour. In such organizations of electronic components, DNA origami serves as a programmable nanobreadboard; thus, DNA origami may allow the rapid prototyping of complex nanotube-based structures. - Self-organized photosynthetic nanoparticle for cell-free hydrogen production
Iwuchukwu IJ Vaughn M Myers N O'Neill H Frymier P Bruce BD - Nature nanotechnology 5(1):73-79 (2010)
From the following article Self-assembly of carbon nanotubes into two-dimensional geometries using DNA origami templates Hareem T. Maune, Si-ping Han, Robert D. Barish, Marc Bockrath, William A. Goddard III, Paul W. K. Rothemund & Erik Winfree Nature Nanotechnology 5, 61 - 66 (2010) Published online: 8 November 2009 doi:10.1038/nnano.2009.311 BACK TO ARTICLE Download plugins and applications Supplementary information Supplementary information Supplementary information - Download PDF file (2,002 KB) BACK TO ARTICLE DOWNLOAD PLUGINS FOR YOUR BROWSER Movie files * QuickTime Player (PC or Mac) * Realplayer (PC or Mac) * Windows Media player (PC only) PDF douments * Adobe Acrobat Reader (PC or Mac) Text documents * Textpad (PC only) * SimpleText (Mac only) PostScript documents * GhostView (Mac and PC) Flash movies * Macromedia Flash Player Audio files * Apple iTunes (PC or Mac) * QuickTime Player (PC or Mac) * Realplayer (PC or Mac) * Windows Media player (PC only) Chemical structures * MDL Chime Microarray * Treeview Compressed Stuff files * StuffIt Expander Compressed Zip files * WinZip (PC only) Systems Biology Markup Language files (SBML) * More information about SMBL Chemical Markup language files (CML) * More information about CML BACK TO ARTICLE - Effective repair of traumatically injured spinal cord by nanoscale block copolymer micelles
Shi Y Kim S Huff TB Borgens RB Park K Shi R Cheng JX - Nature nanotechnology 5(1):80-87 (2010)
There is considerable interest in making use of solar energy through photosynthesis to create alternative forms of fuel. Here, we show that photosystem I from a thermophilic bacterium and cytochrome-c6 can, in combination with a platinum catalyst, generate a stable supply of hydrogen in vitro upon illumination. The self-organized platinization of the photosystem I nanoparticles allows electron transport from sodium ascorbate to photosystem I via cytochrome-c6 and finally to the platinum catalyst, where hydrogen gas is formed. Our system produces hydrogen at temperatures up to 55 °C and is temporally stable for >85 days with no decrease in hydrogen yield when tested intermittently. The maximum yield is ~ 5.5 µmol H2 h−1 mg−1 chlorophyll and is estimated to be ~25-fold greater than current biomass-to-fuel strategies. Future work will further improve this yield by increasing the kinetics of electron transfer, extending the spectral response and replacing the platinu! m catalyst with a renewable hydrogenase.
No comments:
Post a Comment