Recent Submissions

  • Color-stable highly luminescent sky-blue perovskite light-emitting diodes 

    Xing, Jun; Zhao, Yongbiao; Askerka, Mikhail; Quan, Li Na; Gong, Xiwen; Zhao, Weijie; Zhao, Jiaxin; Tan, Hairen; Long, Guankui; Gao, Liang; Yang, Zhenyu; Voznyy, Oleksandr; Tang, Jiang; Lu, Zheng-Hong; Xiong, Qihua; Sargent, Edward H. (2018)
    Perovskite light-emitting diodes (PeLEDs) have shown excellent performance in the green and near-infrared spectral regions, with high color purity, efficiency, and brightness. In order to shift the emission wavelength to ...
  • Structure and possible function of a G-quadruplex in the long terminal repeat of the proviral HIV-1 genome 

    De Nicola, Beatrice; Lech, Christopher J.; Heddi, Brahim; Regmi, Sagar; Frasson, Ilaria; Perrone, Rosalba; Richter, Sara N.; Phan, Anh Tuân (2016)
    The long terminal repeat (LTR) of the proviral human immunodeficiency virus (HIV)-1 genome is integral to virus transcription and host cell infection. The guanine-rich U3 region within the LTR promoter, previously shown ...
  • Monte Carlo study on electron contamination and output factors of small field dosimetry in 6 MV photon beam 

    Yani, Sitti; Dirgayussa, I Gde Eka; Rhani, Mohamad Fahdillah; Soh, Roger C. X.; Haryanto, Freddy; Arif, Idam (2016)
    The purpose of this study was to investigate the characteristics of electron contamination and Output Factors (OFs) from Varian Trilogy Clinac iX 6 MV photon beam at small field sizes. EGSnrc Monte Carlo (MC) code system ...
  • Error bounds for the convex loss Lasso in linear models 

    Hannay, Mark; Deléamont, Pierre-Yves (2017)
    In this paper we investigate error bounds for convex loss functions for the Lasso in linear models, by first establishing a gap in the theory with respect to the existing error bounds. Then, under the compatibility condition, ...
  • Observation of anomalous resistance behavior in bilayer graphene 

    Liu, Yanping; Lew, Wen Siang; Liu, Zongwen (2017)
    Our measurement results have shown that bilayer graphene exhibits an unexpected sharp transition of the resistance value in the temperature region 200~250 K. We argue that this behavior originates from the interlayer ripple ...
  • Bubble dynamics in laser lithotripsy 

    Mohammadzadeh, Milad; Mercado, Julian Martinez; Ohl, Claus-Dieter (2015)
    Laser lithotripsy is a medical procedure for fragmentation of urinary stones with a fiber guided laser pulse of several hundred microseconds long. Using high-speed photography, we present an in-vitro study of bubble dynamics ...
  • Intensely oscillating cavitation bubble in microfluidics 

    Ohl, Siew-Wan; Tandiono; Klaseboer, Evert; Ow, Dave; Choo, Andre; Ohl, Claus-Dieter (2015)
    This study reports the technical breakthrough in generating intense ultrasonic cavitation in the confinement of a microfluidics channel [1], and applications that has been developed on this platform for the past few years ...
  • Cavitation-induced fragmentation of an acoustically-levitated droplet 

    Avila, Silvestre Roberto Gonzalez; Ohl, Claus-Dieter (2015)
    In this paper we investigate the initial sequence of events that lead to the fragmentation of a millimetre sized water droplets when interacting with a focused ns-laser pulse. The experimental results show complex processes ...
  • Modification and control of topological insulator surface states using surface disorder 

    Sacksteder, Vincent; Ohtsuki, Tomi; Kobayashi, Koji (2015)
    We numerically demonstrate a practical means of systematically controlling topological transport on the surface of a three-dimensional topological insulator, by introducing strong disorder in a layer of depth d extending ...
  • A transferrin-conjugated hollow nanoplatform for redox-controlled and targeted chemotherapy of tumor with reduced inflammatory reactions 

    Zhou, Jun; Li, Menghuan; Lim, Wei Qi; Luo, Zhong; Phua, Fiona Soo Zeng; Huo, Runlan; Li, Liqi; Li, Ke; Dai, Liangliang; Liu, Junjie; Cai, Kaiyong; Zhao, Yanli (2018)
    Purpose: In this study, we report the design, development and evaluation of a hollow drug delivery nanoplatform for cancer therapy in vitro and in vivo. This composite nanosystem was prepared by modifying hollow mesoporous ...
  • Plasmonics of topological insulators at optical frequencies 

    Yin, Jun; Krishnamoorthy, Harish Natarajan Swaha; Adamo, Giorgio; Dubrovkin, Alexander M.; Chong, Yidong; Zheludev, Nikolay I.; Soci, Cesare (2017)
    The development of nanoplasmonic devices, such as plasmonic circuits and metamaterial superlenses in the visible to ultraviolet frequency range, is hampered by the lack of low-loss plasmonic media. Recently, strong plasmonic ...
  • Structural and evolutionary aspects of antenna chromophore usage by class II photolyases 

    Kiontke, Stephan; Gnau, Petra; Haselsberger, Reinhard; Batschauer, Alfred; Essen, Lars-Oliver (2014)
    Light-harvesting and resonance energy transfer to the catalytic FAD cofactor are key roles for the antenna chromophores of light-driven DNA photolyases, which remove UV-induced DNA lesions. So far, five chemically diverse ...
  • On signed Young permutation modules and signed p-Kostka numbers 

    Giannelli, Eugenio; Lim, Kay Jin; O’Donovan, William; Wildon, Mark (2017)
    We prove the existence and main properties of signed Young modules for the symmetric group, using only basic facts about symmetric group representations and the Broué correspondence. We then prove new reduction theorems ...
  • Structure and dynamics in the nucleosome revealed by solid-state NMR 

    Shi, Xiangyan; Prasanna, Chinmayi; Nagashima, Toshio; Yamazaki, Toshio; Pervushin, Konstantin; Nordenskiöld, Lars (2018)
    Eukaryotic chromatin structure and dynamics play key roles in genomic regulation. In the current study, we implemented solid-state NMR (SSNMR) technique to investigate secondary structure and intramolecular dynamics of the ...
  • Relaxations of graph isomorphism 

    Mančinska, Laura; Roberson, David E.; Šámal, Robert; Severini, Simone; Varvitsiotis, Antonios (2017)
    We introduce a nonlocal game that captures and extends the notion of graph isomorphism. This game can be won in the classical case if and only if the two input graphs are isomorphic. Thus, by considering quantum strategies ...
  • G-quadruplexes with (4n - 1) guanines in the G-tetrad core : formation of a G-triad·water complex and implication for small-molecule binding 

    Heddi, Brahim; Martín-Pintado, Nerea; Serimbetov, Zhalgas; Teuku Mahfuzh Aufar Kari; Phan, Anh Tuan (2015)
    G-quadruplexes are non-canonical structures of nucleic acids, in which guanine bases form planar G-tetrads (G·G·G·G) that stack on each other in the core of the structure. G-quadruplexes generally contain multiple times ...
  • Separating quantum communication and approximate rank 

    Anshu, Anurag; Ben-David, Shalev; Garg, Ankit; Jain, Rahul; Kothari, Robin; Lee, Troy (2017)
    One of the best lower bound methods for the quantum communication complexity of a function H (with or without shared entanglement) is the logarithm of the approximate rank of the communication matrix of H. This measure is ...
  • Causal asymmetry in a quantum world 

    Thompson, Jayne; Garner, Andrew J. P.; Mahoney, John R.; Crutchfield, James P.; Vedral, Vlatko; Gu, Mile (2018)
    Causal asymmetry is one of the great surprises in predictive modeling: The memory required to predict the future differs from the memory required to retrodict the past. There is a privileged temporal direction for modeling ...
  • Vacuum level dependent photoluminescence in chemical vapor deposition-grown monolayer MoS 2 

    Sun, Linfeng; Zhang, Xiaoming; Liu, Fucai; Shen, Youde; Fan, Xiaofeng; Zheng, Shoujun; Thong, John T. L.; Liu, Zheng; Yang, Shengyuan A.; Yang, Hui Ying (2017)
    The stronger photoluminescence (PL) in chemical vapor deposition (CVD) grown monolayer MoS2 has been attributed to its high crystal quality compared with that in mechanically exfoliated (ME) crystal, which is contrary to ...
  • Tuning magnetic properties for domain wall pinning via localized metal diffusion 

    Jin, Tianli; Ranjbar, Mojtaba; He, S. K.; Law, Wai Cheung; Zhou, T. J.; Lew, Wensiang; Liu, X. X.; Piramanayagam, S. N. (2017)
    Precise control of domain wall displacement in nanowires is essential for application in domain wall based memory and logic devices. Currently, domain walls are pinned by creating topographical notches fabricated by ...

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