Workshop on New Frontiers in Nanomaterials
One-day workshop on nanomaterials will be held on July 25, 2011 at UNAM. Workshop's key speaker Dr. Joerg Heber (Senior editor of Nature Materials) will talk on recent advances in nanotechnology.
[ Poster ] [ Photo ]
UNAM scientists mass-produced ultralong nanostructures
A new top-to-bottom fabrication scheme in nanotechnology
It is not often that prefix multipliers kilo- and nano- come together; and when they do exclusively in the opening chapters of physical sciences textbooks the point being made is that the universe around us spans enourmous space and time scales while operating in unimaginably small ones. We are truly awestruck and inspired by the tension. Kilometer long nanowires do have a similar eponymous echo. The new fabrication technique, reported in Nature Materials by Bayindir Research Group at UNAM is essentially a size reduction technique. Controlled thermal size reduction is repeated iteratively until a macroscopic rod is scaled down to nano sizes radially while elongated axially. In this way a variety of semiconducting, piezoelectric and polymer nanowires and tubes can be produced.
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Latest News
New technique simplifies nanomechanical characterization
UNAM researchers have demonstrated a simple method for obtaining high-resolution mechanical maps. The technique applies the widely available double-pass scheme of the force-microscope to force-distance measurements, and can be applied using standard cantilevers. Non-resonant measurements used in this scheme inherently reject ambiguities and complications that may arise due to coupling of elasticity information with dissipation or adhesion information. (Read the rest of this entry)
Assist. Prof. Mustafa Ö. Güler received TÜBA the young scientists award
The Turkish Academy Of Sciences (TÜBA) The Young Scientists Award (GEBiP) was launched in 2001. This award programme is one of the first of its kind in the world. The objective of TÜBA-GEBIP is to foster young, outstanding scientists who are at the stage of establishing their own research programmes in Turkey after finishing their post-doctoral research activities. TÜBA supports these scientists for a period of three years and helps them set up their own research groups at a stage when they are in need for incentives. In this way TÜBA tries to contribute to develop a new generation of competent researchers from all disciplines, including social sciences and humanities, basic sciences and health sciences. (Read the rest of this entry)
SEIS National Medical Systems Project Awards
Two winners of the annual SEIS (Health Industry Employers' Associations of Turkey) National Medical Systems Project Awards went to UNAM National Institute of Materials Science and Nanotechnology of Bilkent University in 2011. The “Surface Plasmon Resonance Imaging System” developed by the research group of R. Asst. Prof. Aykutlu Dana won the first place, while the project titled “Nanofibers inducing improved recovery of scars” by R. Asst. Prof. Mustafa Özgür Güler and R. Asst. Prof. Ayşe Begüm Tekinay won the third place. (Read the rest of this entry)
UNAM Scientists Received Innovation Award
UNAM Sustainable Technologies Research Group Leader Dr. Turgay Tekinay, Zeynep Ergül Ülger and Prof. Dr. Ali Demirci from Penn State University was awarded the first place in the ATA Teknokent Technological Advancement Project Awards/R&D and Innovation Section and received Honorable Mention in the 2011 Hacettepe University Innovation Project Awards.(Read the rest of this entry)
UNAM scientists devise a digital photonic nose for machine olfaction
Researchers at UNAM developed an infrared absorption based photonic nose that uses photonic bandgap fibers to differentiate and assign unique binary codes to odorous molecules, opening a new path for photonic based olfactory sensors. Machine olfaction research aspires to mimic the exquisite sense of smell in mammals, using arrays of cross responsive sensors backed with sophisticated pattern recognition algorithms for the differentiation of thousands of complex odors. Each odorant, with its particular shape, size, functional group and charge combination, induces a unique combinatorial response from a library. (Read the rest of this entry)
UNAM Researchers won International R&D Project Brokerage Event Prize
R. Asst. Prof. Tamer Uyar of the UNAM-Institute of Materials Science and Nanotechnology and his PhD students Aslı Celebioğlu and Fatma Kayacı won the “First Prize” at III. International R&D Project Brokerage Event hosted by Uludağ Textile Exporters Association (UTIB) on February 10-11, 2011 at Bursa. Their project entitled “Development of Functional Nanofibers: Nanotextile and Nanofiltration Applications” got the “First Prize” in the category of Technical Textiles among the total of 144 project proposals including 56 project proposals abroad. (Read the rest of this entry)
PhD thesis on LEDs at Bilkent receives Innovation Award from Europe
Devices and Sensors Research Group, led by Assoc. Prof. Dr. Hilmi Volkan Demir from the Department of Electrical and Electronics Engineering, the Department of Physics, and UNAM – National Institute of Materials Science and Nanotechnology, has been working on the development and demonstration of high-quality light emitting diodes (LEDs) with superior photometric properties. As stated by the Photonics Strategic Research Agenda, LEDs based on quantum dots are required for high quality and efficient white light generation. (Read the rest of this entry)
JACS Cover: Recent Advances in Molecular Logic Gates
Versatile chemistry of Bodipy dyes allows the design and straightforward synthesis of multivalent-multitopic derivatives, which, with judicious selection of metal ion-ligand pairs based on known affinities, affords control and manipulation of photoinduced electron transfer and internal charge transfer processes as desired.
UNAM researchers demonstrated that metal ions acting as modulators (or inputs, in digital design parlance) can generate absorbance changes in accordance with the operation of a halfadder.
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