Abstract:
:Despite the development of crystal engineering, it remains a great challenge to predict the crystal structure even for the simplest molecules, and a clear link between molecular and crystal symmetry is missing in general. Here we demonstrate that the two-dimensional (2D) crystallization of heterocirculenes on a Au(111) surface is greatly affected by the molecular symmetry. By means of ultrahigh vacuum scanning tunneling microscopy, we observe a variety of 2D crystalline structures in the coverage range from submonolayer to monolayer for D(8h)-symmetric sulflower (C16S8), whereas D(4h)-symmetric selenosulflower (C16S4Se4) forms square and rectangular lattices at submonolayer and monolayer coverages, respectively. No long-range ordered structure is observed for C(1h)-symmetric selenosulflower (C16S5Se3) self-assembling at submonolayer coverage. Such different self-assembly behaviors for the heterocirculenes with reduced molecular symmetries derive from the tendency toward close packing and the molecular symmetry retention in 2D crystallization due to van der Waals interactions.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Xiao WD,Zhang YY,Tao L,Aït-Mansour K,Chernichenko KY,Nenajdenko VG,Ruffieux P,Du SX,Gao HJ,Fasel Rdoi
10.1038/srep05415subject
Has Abstractpub_date
2014-06-24 00:00:00pages
5415issn
2045-2322pii
srep05415journal_volume
4pub_type
杂志文章abstract::Single photons are of paramount importance to future quantum technologies, including quantum communication and computation. Nonlinear photonic devices using parametric processes offer a straightforward route to generating photons, however additional nonlinear processes may come into play and interfere with these sourc...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep03087
更新日期:2013-11-04 00:00:00
abstract::Growth factors have great therapeutic potential for various disease therapy and tissue engineering applications. However, their clinical efficacy is hampered by low bioavailability, rapid degradation in vivo and non-specific biodistribution. Nanoparticle based delivery systems are being evaluated to overcome these lim...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-14040-5
更新日期:2017-10-30 00:00:00
abstract::Rice bacterial blight caused by Xanthomonas oryzae pv. oryzae (Xoo) is a major rice disease. In Taiwan, the tropical indica type of Oryza sativa originally grown in this area is mix-cultivated with the temperate japonica type of O. sativa, and this might have led to adaptive changes of both rice host and Xoo isolates....
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-36575-x
更新日期:2019-01-22 00:00:00
abstract::Investigation of quantum spin Hall states in 1T' phase of the monolayer transition metal dichalcogenides has recently attracted the attention for its potential in nanoelectronic applications. While most of the theoretical findings in this regard deal with infinitely periodic crystal structures, here we employ density ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-63450-5
更新日期:2020-04-21 00:00:00
abstract::DNA methylation on CpG sites is the most common epigenetic modification. Recently, methylation in a non-CpG context was found to occur widely on genomic DNA. Moreover, methylation of non-CpG sites is a highly controlled process, and its level may vary during cellular development. To study non-CpG methylation effects o...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep29119
更新日期:2016-07-07 00:00:00
abstract::Inhomogeneity in the ground state is an intriguing, emergent phenomenon in magnetism. Recently, it has been observed in the magnetostructural channel of the geometrically frustrated α-NaMnO2, for the first time in the absence of active charge degrees of freedom. Here we report an in-depth numerical and local-probe exp...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep09272
更新日期:2015-03-19 00:00:00
abstract::Solid oxide fuel cells (SOFC) are the cleanest, most efficient, and cost-effective option for direct conversion to electricity of a wide variety of fuels. While significant progress has been made in anode materials with enhanced tolerance to coking and contaminant poisoning, cathodic polarization still contributes con...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep02426
更新日期:2013-01-01 00:00:00
abstract::Textile forms of solar cells possess special advantages over other types of solar cells, including their light weight, high flexibility, and mechanical robustness. Recent demand for wearable devices has promoted interest in the development of high-efficiency textile-based solar cells for energy suppliers. However, the...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep05322
更新日期:2014-06-24 00:00:00
abstract::Much of the work in periodontal microbiology in recent years has focused on identifying and understanding periodontal pathogens. As the majority of oral microbes have not yet been isolated in pure form, it is essential to understand the phenotypic characteristics of microbes to decipher their role in oral environment....
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep33665
更新日期:2016-09-21 00:00:00
abstract::Tissue ischemia results in an accumulation of lactate and local or systemic lactic acidosis. In nociceptive sensory neurons, lactate was reported to sensitize or activate the transient receptor potential ion channel TRPA1 and acid-sensing ion channels (ASICs). However, it is unclear how lactate modulates the TRPV1 reg...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep36740
更新日期:2016-11-09 00:00:00
abstract::Discovered in 1813, the conoscopic interference pattern observed due to light propagating through a crystal, kept between crossed polarizers, shows isochromates and isogyres, respectively containing information about the dynamic and geometric phase acquired by the beam. We propose and demonstrate a closed-fringe Fouri...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep33141
更新日期:2016-09-14 00:00:00
abstract::The development of high energy-density lithium-ion secondary batteries as storage batteries in vehicles is attracting increasing attention. In this study, high-voltage bipolar stacked batteries with a quasi-solid-state electrolyte containing a Li-Glyme complex were prepared, and the performance of the device was evalu...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep08869
更新日期:2015-03-09 00:00:00
abstract::We study propagation in a cyclic symmetric multicore fiber where the core radii randomly fluctuate along the propagation direction. We propose a hybrid analytic-numerical method to optimize the amplitude and frequency of the fluctuations that suppress power transfer between outer and inner cores. This framework allows...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-51854-x
更新日期:2019-10-31 00:00:00
abstract::The sweetpotato whitefly Bemisia tabaci (Gennadius) was challenged with different combinations of matrine (insecticide) and Lecanicillium muscarium (entomopathogenic fungus). Our results revealed a synergistic relationship between matrine and L. muscarium on mortality and enzyme activities of B. tabaci. To illustrate ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep46558
更新日期:2017-04-20 00:00:00
abstract::The micro-capillary condensation of a new high boiling point organic reagent (HBPO), is studied in a periodic mesoporous oxide (PMO) with ∼34 % porosity and k-value ∼2.3. At a partial pressure of 3 mT, the onset of micro-capillary condensation occurs around +20 °C and the low-k matrix is filled at -20 °C. The condense...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-20099-5
更新日期:2018-01-30 00:00:00
abstract::Since it has been demonstrated that spatial cognition can be affected in visually impaired children, training strategies that exploit the plasticity of the human brain should be early adopted. Here we developed and tested a new training protocol based on the reinforcement of audio-motor associations and thus supportin...
journal_title:Scientific reports
pub_type: 临床试验,杂志文章
doi:10.1038/s41598-019-39981-x
更新日期:2019-03-01 00:00:00
abstract::Childhood and adolescent overweight and obesity are increasing in China, but limited information is available on its secular trends in Guangzhou. In this cross-sectional study, ten-wave successive data were obtained from the physical fitness surveillance for students in Guangzhou from 2003 to 2012. A total of 2,619,15...
journal_title:Scientific reports
pub_type: 临床试验,杂志文章
doi:10.1038/s41598-017-12094-z
更新日期:2017-09-21 00:00:00
abstract::We aimed to investigate whether the newborns of mothers with maternal depression (MD) had lower vitamin D levels than newborns of non-MD (NMD) mothers and identify the potential mechanism underlying this association. Maternal depressive symptoms in late pregnancy and concentrations of cord blood 25 hydroxyvitamin D (2...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-01778-1
更新日期:2017-05-08 00:00:00
abstract::Transcriptome diversity in adult neurons is partly mediated by RNA binding proteins (RBPs), including the RBFOX factors. RBFOX3/NeuN, a neuronal maturity marker, is strangely depleted in suprachiasmatic nucleus (SCN) neurons, and may be compensated by a change in Rbfox2 expression. In this study, we found no superfici...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-10535-3
更新日期:2017-08-30 00:00:00
abstract::Protein-based drug discovery strategies have the distinct advantage of providing insights into the molecular mechanisms of chemical effectors. Currently, there are no known trehalose-6-phosphate phosphatase (TPP) inhibitors that possess reasonable inhibition constants and chemical scaffolds amenable to convenient modi...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-52593-9
更新日期:2019-11-07 00:00:00
abstract::Nitrogen-doped graphene oxides (GO:Nx) were synthesized by a partial reduction of graphene oxide (GO) using urea [CO(NH2)2]. Their electronic/bonding structures were investigated using X-ray absorption near-edge structure (XANES), valence-band photoemission spectroscopy (VB-PES), X-ray emission spectroscopy (XES) and ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep42235
更新日期:2017-02-10 00:00:00
abstract::Quantitative reverse transcription PCR (RT-qPCR) is one of the most efficient, reliable and widely used techniques to quantify gene expression. In this study, we evaluated the performance of six southern corn rootworm, Diabrotica undecimpunctata howardi (Barber), housekeeping genes (HKG), β-actin (Actin), β-tubulin (T...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-47020-y
更新日期:2019-07-24 00:00:00
abstract::Potential formula of an arbitrary resistor network has been an unsolved problem for hundreds of years, which is an interdisciplinary problem that involves many areas of natural science. A new progress has been made in this paper, which discovered the potential formula of a nonregular m × n fan network with two arbitra...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-24164-x
更新日期:2018-04-11 00:00:00
abstract::We report the experimental observation of energetically confined self-accelerating optical beams propagating along various convex trajectories. We show that, under an appropriate transverse compression of their spatial spectra, these self-accelerating beams can exhibit a dramatic enhancement of their peak intensity an...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep13197
更新日期:2015-08-24 00:00:00
abstract::Phytoplankton subsumes the great variety of unicellular photoautotrophs that perform roughly half of Earth's primary production. They achieve this despite their challenging oceanic habitat, with opposing vertical gradients of nutrients (which often limit their growth near the surface) and light (which becomes limiting...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-57890-2
更新日期:2020-01-24 00:00:00
abstract::The association between maternal cadmium (Cd) exposure during pregnancy and the increased risk of fetal growth restriction (FGR) remains controversial. The present study evaluated the association between maternal serum Cd level and risk of small for gestational age (SGA) infants in a Chinese population. The present st...
journal_title:Scientific reports
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1038/srep22631
更新日期:2016-03-03 00:00:00
abstract::Vortices are essential to angular momentum in quantum systems such as ultracold atomic gases. The existence of quantized vorticity in bosonic systems stimulated the development of the Gross-Pitaevskii mean-field approximation. However, the true dynamics of angular momentum in finite, interacting many-body systems like...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep40122
更新日期:2017-01-16 00:00:00
abstract::Alzheimer's disease (AD) is the most common form of dementia characterized by the formation of amyloid plaques (Aβ). Over the last decade, the important role of the innate immune system for the disease development has been established. Chronic activation of microglial cells creates a proinflammatory environment, which...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-19699-y
更新日期:2018-01-24 00:00:00
abstract::Inspired by adhesive mussel proteins, nanospherical self-assemblies were prepared from bolaamphiphiles containing 3,4-dihydroxyphenylalanine (DOPA) moieties, and a suspension of the bolaamphiphile assemblies was used for the preparation of a patterned surface that enhanced cell adhesion and viability. The abundant sur...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-14249-4
更新日期:2017-10-23 00:00:00
abstract::Despite the tremendous progress of quantum cryptography, efficient quantum communication over long distances (≥ 1000 km) remains an outstanding challenge due to fiber attenuation and operation errors accumulated over the entire communication distance. Quantum repeaters (QRs), as a promising approach, can overcome both...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep20463
更新日期:2016-02-15 00:00:00