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| 1 | Double-layer graphene for enhanced tunable infrared plasmonics显示文摘Graphene is emerging as a promising material for photonic applications owing to its unique optoelectronic properties.Graphene supports tunable,long-lived and extremely confined plasmons that have great potential for applications such as biosensing and optical communications.However,in order to excite plasmonic resonances in graphene,this material requires a high doping level,which is challenging to achieve without degrading carrier mobility and stability.Here,we demonstrate that the infrared plasmonic response of a graphene multilayer stack is analogous to that of a highly doped single layer of graphene,preserving mobility and supporting plasmonic resonances with higher oscillator strength than previously explored single-layer devices.Particularly,we find that the optically equivalent carrier density in multilayer graphene is larger than the sum of those in the individual layers.Furthermore,electrostatic biasing in multilayer graphene is enhanced with respect to single layer due to the redistribution of carriers over different layers,thus extending the spectral tuning range of the plasmonic structure.The superior effective doping and improved tunability of multilayer graphene stacks should enable a plethora of future infrared plasmonic devices with high optical performance and wide tunability. | Daniel Rodrigo Andreas Tittl Odeta Limaj F Javier García de Abajo Valerio Pruneri Hatice Altug | 2017 | Light(Science & Applications)2017，6，1： | 3 |
| 2 | Nanoplasmonic mid-infrared biosensor for in vitro protein secondary structure detection显示文摘Plasmonic nanoantennas offer new applications in mid-infrared(mid-IR)absorption spectroscopy with ultrasensitive detection of structural signatures of biomolecules,such as proteins,due to their strong resonant near-fields.The amide I fingerprint of a protein contains conformational information that is greatly important for understanding its function in health and disease.Here,we introduce a non-invasive,label-free mid-IR nanoantenna-array sensor for secondary structure identification of nanometer-thin protein layers in aqueous solution by resolving the content of plasmonically enhanced amide I signatures.We successfully detect random coil to crossβ-sheet conformational changes associated withα-synuclein protein aggregation,a detrimental process in many neurodegenerative disorders.Notably,our experimental results demonstrate high conformational sensitivity by differentiating subtle secondary-structural variations in a nativeβ-sheet protein monolayer from those of crossβ-sheets,which are characteristic of pathological aggregates.Our nanoplasmonic biosensor is a highly promising and versatile tool for in vitro structural analysis of thin protein layers. | Dordaneh Etezadi John B Warner IV Francesco S Ruggeri Giovanni Dietler Hilal A Lashuel Hatice Altug | 2017 | Light(Science & Applications)2017，6，1： | 2 |
| 3 | Effect of circulation on wastewater treatment by Lemna gibba and Lemna minor (floating aquatic macrophytes) 显示文摘 | Dilek D Hatice A | 2011 | Intern J Phytoremed2011，13，10： | 1 |
| 4 | Changes in microbiological and chemical characteristics of an artisanal Turkish white cheese during ripening显示文摘 | ZUBEYDE O AYNUR G K HATICE A | 2006 | Swiss Society of Food Science and Technology2006，39，： | 1 |
| 5 | Ginkgo biloba( EGB761 ) affects apoptosis and nitric- oxide synthases in testicular torsion: An experimental study显示文摘 | Turgay A Ersagun K Hatice S | 2009 | Int Urol Nephrol2009，41，： | 1 |
| 6 | Multi-period multi-objective electricity generation expansion planning problem with Monte-Carlo simulation显示文摘 | Hatice T David W C Frank A F | 2010 | Electric Power System Research2010，80，1： | 1 |
| 7 | Output-associative RVM regression for dimensional and continuous emotion prediction显示文摘 | Mihalis A Nicolaou Hatice Gunes Maja Pantic | 2012 | Image and Vision Computing2012，30，3： | 1 |
| 8 | RFLP of 16S-ITS rDNA region to differentiate Lactobacilli at species level显示文摘 | Elif Yavuz Hatice Gunes Cisem Bulut Sebnem Harsa Fazil A Yenidunya | 2004 | World Journal of Microbiology and Biotechnology2004，20，： | 1 |
| 9 | Heterogeneous Suzuki reactions cat- alyzed by Pd (0) - Y zeolite 显示文摘 | Levent A Hatice B | 2004 | Tetrahedron Letters2004，45，： | 1 |
| 10 | Output- associative RVM regression for dimensional and continuous emotion prediction显示文摘 | MIHALIS A N HATICE G and MAJA P | 2012 | Image and Vision Computing2012，30，3： | 1 |
| 11 | Evaluation of a card test for procaleitonin in continuous ambulatory peritoneal dialysis peritoni-tis显示文摘 | Fatma MY G(u)lsen Y Hatice A | 2007 | Ann Clinic Biochem2007，44，5： | 1 |
| 12 | Effects of L-carnitine infusions on inflammatory and nutritional markers in haemodialysis patients显示文摘 | Murat D Hatice A Fatma M | 2006 | Nephrol Dial Transplant2006，21，： | 1 |
| 13 | Castor oil as a renewable resource for the chemical industry 显示文摘 | Hatice Mutlu Michael A R | 2010 | Eur J Lipid Sci Technol2010，112，： | 1 |
| 14 | Phase-sensitive plasmonic biosensor using a portable and large field-of-view interferometric microarray imager显示文摘Nanophotonics,and more specifically plasmonics,provides a rich toolbox for biomolecular sensing,since the engineered metasurfaces can enhance light–matter interactions to unprecedented levels.So far,biosensing associated with high-quality factor plasmonic resonances has almost exclusively relied on detection of spectral shifts and their associated intensity changes.However,the phase response of the plasmonic resonances have rarely been exploited,mainly because this requires a more sophisticated optical arrangement.Here we present a new phase-sensitive platform for high-throughput and label-free biosensing enhanced by plasmonics.It employs specifically designed Au nanohole arrays and a large field-of-view interferometric lens-free imaging reader operating in a collinear optical path configuration.This unique combination allows the detection of atomically thin(angstrom-level)topographical features over large areas,enabling simultaneous reading of thousands of microarray elements.As the plasmonic chips are fabricated using scalable techniques and the imaging reader is built with low-cost off-the-shelf consumer electronic and optical components,the proposed platform is ideal for point-of-care ultrasensitive biomarker detection from small sample volumes.Our research opens new horizons for on-site disease diagnostics and remote health monitoring. | Filiz Yesilkoy Roland A Terborg Josselin Pello Alexander A Belushkin Yasaman Jahani Valerio Pruneri Hatice Altug | 2017 | Light(Science & Applications)2017，6，1： | 0 |
| 15 | Effects of chronic smoking on color vision in young subjects显示文摘AIM: To evaluate the effects of chronic smoking on color vision in young subjects.METHODS: This study included 91 smokers and 88non-smokers(a total of 179 volunteers) without any ophthalmologic and systemical disorders. The subjects were between 18-40 years of age with a best corrected visual acuity(BCVA) of 20/20, normal anterior and posterior segment examinations and normal intraocular pressure. The color vision of the subjects were evaluated with Farnsworth-Munsell 100 Hue test(FMHT). The total error scores and axis calculation were performed for each subject and the results correlated.RESULTS: Mean age and the standard deviation was28±5y in the smokers group, and 26.7±5.5y in the control group(P =0.101). Sex distribution was similar in the two groups(P =0.365). There was no significant correlation between age and FMHT total error scores(P =0.069).Median of FMHT total error scores of smokers and non-smokers were 65 and 50.50, respectively. FMHT total error scores was found significantly higher in smokers than non-smokers(P =0.004). There was no statisticaly significant difference between smoker and non-smoker groups with respect to axis ratio calculation(P =0.611).There was no significant correlation with FMHT total error scores with neither smoking duration nor number of cigarettes smoked per day(P =0.405, P =0.454,respectively).· CONCLUSION: This study suggested that chronic smoking affects the color vision of young smokers but this may not be sector selective. | Hatice Arda G Ertugrul Mirza Osman A Polat Sarper Karakucuk Ayse Oner Koray Gumus | 2015 | International Journal of Ophthalmology(English edition)2015，8，1： | 0 |
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