All posts; Tags Include "Nanoscience"
- June 12, 2016
- 10:35 PM
- 524 views
Seeing Through the Skin
by Aurametrix team in Olfactics and Diagnostics
Human skin emits light (albeit the glow is extremely weak) and a wide variety of small molecules that may be sometimes "sniffed" by dogs or even other humans. These chemicals tell a story about our health and wellness, things we eat and drink, touch and breathe. Mosquitoes use such emissions to assess our "attractiveness" from indicators such as Indoles (unpleasantly smelling but healthy "inner soil" biomarker) or carbon dioxide (amount of which correlates with the size of the person........ Read more »
Andreoni G, Standoli CE, & Perego P. (2016) Defining Requirements and Related Methods for Designing Sensorized Garments. Sensors (Basel, Switzerland), 16(6). PMID: 27240361
Gao W, Emaminejad S, Nyein HY, Challa S, Chen K, Peck A, Fahad HM, Ota H, Shiraki H, Kiriya D.... (2016) Fully integrated wearable sensor arrays for multiplexed in situ perspiration analysis. Nature, 529(7587), 509-14. PMID: 26819044
Imani S, Bandodkar AJ, Mohan AM, Kumar R, Yu S, Wang J, & Mercier PP. (2016) A wearable chemical-electrophysiological hybrid biosensing system for real-time health and fitness monitoring. Nature communications, 11650. PMID: 27212140
Lee H, Choi TK, Lee YB, Cho HR, Ghaffari R, Wang L, Choi HJ, Chung TD, Lu N, Hyeon T.... (2016) A graphene-based electrochemical device with thermoresponsive microneedles for diabetes monitoring and therapy. Nature nanotechnology, 11(6), 566-72. PMID: 26999482
Panneer Selvam A, Muthukumar S, Kamakoti V, & Prasad S. (2016) A wearable biochemical sensor for monitoring alcohol consumption lifestyle through Ethyl glucuronide (EtG) detection in human sweat. Scientific reports, 23111. PMID: 26996103
Yokota T, Zalar P, Kaltenbrunner M, Jinno H, Matsuhisa N, Kitanosako H, Tachibana Y, Yukita W, Koizumi M, & Someya T. (2016) Ultraflexible organic photonic skin. Science advances, 2(4). PMID: 27152354
- February 26, 2016
- 10:00 AM
- 809 views
Ο οίκος των Αχαιμενιδών
by Perikis Livas in Chilon
Το ερέθισμα των Περσικών πολέμων (502-449 π.Χ) και η ανέλπιστη νίκη των Ελλήνων, έβγαλαν την κυρίως Ελλάδα από τ&e........; Read more »
Chilon. (2016) Ο οίκος των Αχαιμενιδών. Chilon . info:/
- February 18, 2016
- 10:00 AM
- 811 views
Η Ιερά Εξέταση
by Perikis Livas in Chilon
Η Ιερά Εξέταση ήταν Εκκλησιαστικός θεσμός δικαστικού χαρακτήρα της Ρωμαιοκαθολικής Εκκλησί&al........; Read more »
Chilon-Pitheys. (2016) Η Ιερά Εξέταση. Chilon . info:/
- February 5, 2016
- 10:00 AM
- 659 views
Ανδρέας Βεσάλιος………..ο ιδρυτής της σύγχρονης α&
by Perikis Livas in Chilon
Ο Ανδρέας Βεσάλιος (Andreas Vesalius, γνωστός και ως Βεζάλιος ή Βεζάλ) γεννήθηκε την 31 Δεκεμβρίου 1514, ή νωρίς το πρ&ome........; Read more »
Πυθεύς. (2016) Ανδρέας Βεσάλιος……….ο ιδρυτής της σύγχρονης ανατομίας. Chilon . info:/
- May 7, 2015
- 06:41 AM
- 1,191 views
Missing link in the evolution of complex cells discovered
by Perikis Livas in Chilon
In a new study, published in Nature this week, a research team led from Uppsala University in Sweden presents the discovery of a new microbe that represents a missing link in the evolution of complex life. The study provides a new understanding of how, billions of years ago, the complex cell types that comprise plants, fungi, but also animals and humans, evolved from simple microbes.
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Νεα μελέτη, η οποία &epsi........; Read more »
Spang, A., Saw, J., Jørgensen, S., Zaremba-Niedzwiedzka, K., Martijn, J., Lind, A., van Eijk, R., Schleper, C., Guy, L., & Ettema, T. (2015) Complex archaea that bridge the gap between prokaryotes and eukaryotes. Nature. DOI: 10.1038/nature14447
- April 29, 2015
- 06:01 PM
- 1,146 views
Robot Discovers Two New Neighbors
by Perikis Livas in Chilon
Maunakea, Hawaii – A team of astronomers using ground-based telescopes in Hawaii, California, and Arizona recently discovered a planetary system orbiting a nearby star that is only 54 light-years away. All three planets orbit their star at a distance closer than Mercury orbits the sun, completing their orbits in just 5, 15, and 24 days. The paper is being published in the Astrophysical Journal.... Read more »
Benjamin J. Fulton, Lauren M. Weiss, Evan Sinukoff, Howard Isaacson, Andrew W. Howard, Geoffrey W. Marcy, Gregory W. Henry, Bradford P. Holden, & Robert I. Kibrick. (2015) Three Super-Earths Orbiting HD 7924. Astrophysical Journal. arXiv: 1504.06629v1
- April 24, 2015
- 01:55 PM
- 1,467 views
Hubble's 25th anniversary
by Perikis Livas in Chilon
Δεδομένης της ολοκλήρωσης των 25 χρόνων λειτουργίας του, παρουσιάζονται μερικές από τις σημαντ&iota........; Read more »
Periklis D. Livas. (2015) Hubble's 25th anniversary. Chilon. info:/
- April 22, 2015
- 12:29 PM
- 836 views
Microwave goodbye to inefficient spintronic microwave detectors
by Bryn Howells in Spin and Tonic
Magnetic tunnel junctions (MTJs) which comprise of a free magnetic layer (whose magnetization orientation can be manipulated) and a fixed magnetic layer (whose magnetization is...
The post Microwave goodbye to inefficient spintronic microwave detectors appeared first on Spin and Tonic.
... Read more »
Gui, Y., Xiao, Y., Bai, L., Hemour, S., Zhao, Y., Houssameddine, D., Wu, K., Guo, H., & Hu, C. (2015) High sensitivity microwave detection using a magnetic tunnel junction in the absence of an external applied magnetic field. Applied Physics Letters, 106(15), 152403. DOI: 10.1063/1.4918677
- April 18, 2015
- 04:45 AM
- 1,124 views
Major Advance in Artificial Photosynthesis
by Perikis Livas in Chilon
A potentially game-changing breakthrough in artificial photosynthesis has been achieved with the development of a system that can capture carbon dioxide emissions before they are vented into the atmosphere and then, powered by solar energy, convert that carbon dioxide into valuable chemical products, including biodegradable plastics, pharmaceutical drugs and even liquid fuels.... Read more »
Liu, C., Gallagher, J., Sakimoto, K., Nichols, E., Chang, C., Chang, M., & Yang, P. (2015) Nanowire–Bacteria Hybrids for Unassisted Solar Carbon Dioxide Fixation to Value-Added Chemicals. Nano Letters, 2147483647. DOI: 10.1021/acs.nanolett.5b01254
- April 15, 2015
- 10:00 AM
- 1,142 views
Η μάχη του Towton (29 Μαρτίου 1461)
by Perikis Livas in Chilon
Η περίοδος πολιτικής αστάθειας της Αγγλικής ιστορίας γνωστή ως Πόλεμος των Ρόδων, μετουσιώθη&k........; Read more »
Περικλής Δημ. Λιβάς. (2015) Η μάχη του Towton (29 Μαρτίου 1461). Chilon Historical Recursions. info:/
- April 8, 2015
- 03:48 PM
- 728 views
The heat is magnon at magnetic/non-magnetic interfaces
by Bryn Howells in Spin and Tonic
A magnon is a quantised spin wave, i.e. a collective excitation of the spin angular momentum that is associated with electrons in a crystal structure. ...
The post The heat is magnon at magnetic/non-magnetic interfaces appeared first on Spin and Tonic.
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Scott A. Bender and Yaroslav Tserkovnyak. (2015) Interfacial spin and heat transfer between metals and magnetic insulators. Physical Review B, 140402. info:/
- April 1, 2015
- 06:36 PM
- 732 views
Drifting towards spintronic polarimeters
by Bryn Howells in Spin and Tonic
In electronics, a drift current is one where the motion of charge carriers is dictated by an applied electric field. In contrast, a diffusive current...
The post Drifting towards spintronic polarimeters appeared first on Spin and Tonic.
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Nádvorník, L., Haigh, J., Olejník, K., Irvine, A., Novák, V., Jungwirth, T., & Wunderlich, J. (2015) Efficient conversion of light to charge and spin in Hall-bar microdevices. Physical Review B, 91(12). DOI: 10.1103/PhysRevB.91.125205
- March 27, 2015
- 10:00 AM
- 1,802 views
Οι Κομάντσι – Comanche
by Perikis Livas in Chilon
Η ιστορία του Τέξας αναδεικνύει τον σημαντικό ρόλο που διαδραμάτισαν κατά το χρονικό διάστημα μετ&alp........; Read more »
Περικλής Δημ. Λιβάς. (2015) Οι Κομάντσι - Comanche. Chilon. info:/
- March 19, 2015
- 11:39 AM
- 732 views
Heusler alloys: A hot topic
by Bryn Howells in Spin and Tonic
A-Heusler there matey Heusler materials are becoming increasingly interesting for use in spintronics. These materials have X2YZ stoichiometry (where Y is a magnetic ion) and...
The post Heusler alloys: A hot topic appeared first on Spin and Tonic.
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Kento Yamasaki1, Soichiro Oki1, Shinya Yamada1, Takeshi Kanashima1, and Kohei Hamaya1. (2015) Spin-related thermoelectric conversion in lateral spin-valve devices with single-crystalline Co2FeSi electrodes . Applied Physics Express, 43003. info:/
- March 13, 2015
- 02:20 AM
- 985 views
How photosynthesis is inspiring solar power research
by GrrlScientist in Maniraptora
SUMMARY: To meet humanity’s growing energy demands, scientists are taking lessons from plants, which perfected the process of capturing the sun’s rays and transforming that into starch. Might scientists be able to adapt the photosynthetic process pioneered by plants and adapt it to meet human demands? ... Read more »
Barber James. (2007) Biological solar energy. Philosophical Transactions of the Royal Society A, 1007-1023. DOI: 10.1098/rsta.2006.1962
Porter G. (1950) Flash Photolysis and Spectroscopy. A New Method for the Study of Free Radical Reactions. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 200(1061), 284-300. DOI: http://dx.doi.org/10.1098/rspa.1950.0018
Porter G. (1966) Studies of Triplet Chlorophyll by Microbeam Flash Photolysis. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 295(1440), 1-12. DOI: http://dx.doi.org/10.1098/rspa.1966.0222
Porter G. (1978) The Bakerian Lecture, 1977: In Vitro Models for Photosynthesis. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 362(1710), 281-303. DOI: http://dx.doi.org/10.1098/rspa.1978.0134
Tyndall J. (1861) The Bakerian Lecture: On the Absorption and Radiation of Heat by Gases and Vapours, and on the Physical Connexion of Radiation, Absorption, and Conduction. Philosophical Transactions of the Royal Society of London, 1-36. DOI: http://dx.doi.org/10.1098/rstl.1861.0001
Cogdell R. J., P. I. Molina, & L. Cronin. (2013) The use and misuse of photosynthesis in the quest for novel methods to harness solar energy to make fuel. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 371(1996), 20110603-20110603. DOI: http://dx.doi.org/10.1098/rsta.2011.0603
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- March 12, 2015
- 11:55 AM
- 836 views
Interface time: Finding the source of perpendicular magnetic anisotropy
by Bryn Howells in Spin and Tonic
As touched upon in last week’s Pick of the Week, perpendicular magnetic anisotropy (PMA) may be important for spin transfer torque MRAM (STT-MRAM) as it...
The post Interface time: Finding the source of perpendicular magnetic anisotropy appeared first on Spin and Tonic.
... Read more »
Kim, M., Kim, S., Ko, J., & Hong, J. (2015) Contribution of individual interfaces in the MgO/Co/Pd trilayer to perpendicular magnetic anisotropy upon annealing. Applied Physics Letters, 106(10), 102404. DOI: 10.1063/1.4914497
- March 10, 2015
- 07:00 AM
- 1,317 views
Pulling Us Toward Tractor Beams
by Mark E. Lasbury in The 'Scope
Tractor beams pulling space ships are things of science fiction, but tractor beams pulling small objects on Earth are science fact. Beams usually push things away with their force, but we have learned to manipulate them so that they push things back to the source – we can do it with water, sound and even laser light.... Read more »
Shvedov, V., Davoyan, A., Hnatovsky, C., Engheta, N., & Krolikowski, W. (2014) A long-range polarization-controlled optical tractor beam. Nature Photonics, 8(11), 846-850. DOI: 10.1038/nphoton.2014.242
Mo Li, W. H. P. Pernice, & H. X. Tang. (2009) Tunable bipolar optical interactions between guided lightwaves. Nature Photonics. arXiv: 0903.5117v1
Démoré CE, Dahl PM, Yang Z, Glynne-Jones P, Melzer A, Cochran S, MacDonald MP, & Spalding GC. (2014) Acoustic tractor beam. Physical review letters, 112(17), 174302. PMID: 24836252
Punzmann, H., Francois, N., Xia, H., Falkovich, G., & Shats, M. (2014) Generation and reversal of surface flows by propagating waves. Nature Physics, 10(9), 658-663. DOI: 10.1038/nphys3041
Ruffner DB, & Grier DG. (2012) Optical conveyors: a class of active tractor beams. Physical review letters, 109(16), 163903. PMID: 23215079
- March 6, 2015
- 11:27 AM
- 722 views
MRAM catches an STT
by Bryn Howells in Spin and Tonic
After a month long absence, Pick of the Week returns with a look at a fantastic commentary article on spin-transfer torque magnetoresistive random access memory...
The post MRAM catches an STT appeared first on Spin and Tonic.
... Read more »
Kent, A., & Worledge, D. (2015) A new spin on magnetic memories. Nature Nanotechnology, 10(3), 187-191. DOI: 10.1038/nnano.2015.24
- March 4, 2015
- 10:00 AM
- 1,586 views
Μέγας Αλεξανδρος & Θάληστρις (329 π.Χ) - Alexander the Great & Thalestris - Chilon
by Perikis Livas in Chilon
Το ειδύλλιο της ατρόμητης Αμαζόνας πολέμαρχου με τον κατακτητή των συνόρων του γνωστού κόσμου τ&eta........; Read more »
Περικλής Δημ. Λιβάς. (2015) Μέγας Αλεξανδρος . Chilon. info:/
- February 17, 2015
- 07:05 AM
- 1,271 views
I'll Beam Right Over
by Mark E. Lasbury in The 'Scope
Star Trek’s 50th anniversary is next year. Wouldn’t transporting a person to the ISS be a great way to celebrate? Well, there are a couple of problems to overcome, but we’re on our way. We have recently learned how to transport information and light from one place to another, without it ever existing anywhere in between! And this will help us make quantum computers that will be able to transport all the information contained in every atom of your body.... Read more »
Filippov, S., & Ziman, M. (2014) Entanglement sensitivity to signal attenuation and amplification. Physical Review A, 90(1). DOI: 10.1103/PhysRevA.90.010301
Ma, X., Herbst, T., Scheidl, T., Wang, D., Kropatschek, S., Naylor, W., Wittmann, B., Mech, A., Kofler, J., Anisimova, E.... (2012) Quantum teleportation over 143 kilometres using active feed-forward. Nature, 489(7415), 269-273. DOI: 10.1038/nature11472
Shomroni, I., Rosenblum, S., Lovsky, Y., Bechler, O., Guendelman, G., & Dayan, B. (2014) All-optical routing of single photons by a one-atom switch controlled by a single photon. Science, 345(6199), 903-906. DOI: 10.1126/science.1254699
Yokoyama, S., Ukai, R., Armstrong, S., Sornphiphatphong, C., Kaji, T., Suzuki, S., Yoshikawa, J., Yonezawa, H., Menicucci, N., & Furusawa, A. (2013) Ultra-large-scale continuous-variable cluster states multiplexed in the time domain. Nature Photonics, 7(12), 982-986. DOI: 10.1038/nphoton.2013.287
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