Abstract:
:Understanding and control of heat dissipation is an important challenge in nanoelectronics wherein field-accelerated hot carriers in current-carrying ballistic systems release a large part of the kinetic energy into external bulk phonon baths. Here we report on a physical mechanism of this remote heat dissipation and its role on the stability of atomic contacts. We used a nano-fabricated thermocouple to directly characterize the self-heating in a mechanically-configurable Au junction. We found more pronounced heat dissipation at the current downstream that signifies the electron-hole asymmetry in Au nanocontacts. Meanwhile, the simultaneously measured single-atom chain lifetime revealed a minor influence of the heat dissipation on the contact stability by virtue of microleads serving as an effective heat spreader to moderate the temperature rise to several Kelvins from the ambient under microwatt input power. The present finding can be used for practical design of atomic and molecular electronic devices for heat dissipation managements.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Tsutsui M,Morikawa T,Yokota K,Taniguchi Mdoi
10.1038/s41598-018-26203-zsubject
Has Abstractpub_date
2018-05-18 00:00:00pages
7842issue
1issn
2045-2322pii
10.1038/s41598-018-26203-zjournal_volume
8pub_type
杂志文章abstract::In response to endotoxemia, the organism triggers an inflammatory response, and the visceral adipose tissue represents a major source of proinflammatory cytokines. The regulation of inflammation response in the adipose tissue is thus of crucial importance. We demonstrated that Regulated in development and DNA damage r...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-07182-z
更新日期:2017-08-01 00:00:00
abstract::Change in body composition with skeletal muscle wasting, a major component of pulmonary cachexia, is associated with mortality in chronic obstructive pulmonary disease and cancer. However, its relevance in interstitial lung diseases (ILDs) remains unclear. We hypothesized changes in body composition would be associate...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-32478-z
更新日期:2018-09-19 00:00:00
abstract::Saccharomyces cerevisiae is a robust host for heterologous protein expression. The efficient expression of cellulases in S. cerevisiae is important for the consolidated bioprocess that directly converts lignocellulose into valuable products. However, heterologous proteins are often N-hyperglycosylated in S. cerevisiae...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep25654
更新日期:2016-05-09 00:00:00
abstract::Cigarette smoking is a risk factor for stroke and is linked to stroke severity. Previous studies have shown that cigarette smoke extract (CSE) triggers endothelial dysfunction in vitro by initiating oxidative stress and/or an inflammatory response. In addition, cerebral endothelial dysfunction (particularly at the lev...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-51728-2
更新日期:2019-10-30 00:00:00
abstract::Parvalbumin-containing projection neurons of the medial-septum-diagonal band of Broca ([Formula: see text]) are essential for hippocampal rhythms and learning operations yet are poorly understood at cellular and synaptic levels. We combined electrophysiological, optogenetic, and modeling approaches to investigate [For...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-80245-w
更新日期:2021-01-22 00:00:00
abstract::Microorganisms associated with plants are highly diverse and can produce a large number of secondary metabolites, with antimicrobial, anti-parasitic and cytotoxic activities. We are particularly interested in exploring endophytes from medicinal plants found in the Pantanal, a unique and widely unexplored wetland in Br...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-21400-2
更新日期:2018-02-15 00:00:00
abstract::Riboflavin (Rf) is a vitamin and endogenous photosensitizer capable to generate reactive oxygen species (ROS) under UV-blue irradiation and kill cancer cells, which are characterized by the enhanced uptake of Rf. We confirmed its phototoxicity on human breast adenocarcinoma cells SK-BR-3 preincubated with 30-μM Rf and...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep35103
更新日期:2016-10-12 00:00:00
abstract::RNA interference has had major advances as a developing tool for pest management. In laboratory experiments, double-stranded RNA (dsRNA) is often administered to the insect by genetic modification of the crop, or synthesized in vitro and topically applied to the crop. Here, we engineered genetically modified yeast tha...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep22587
更新日期:2016-03-02 00:00:00
abstract::Electrical stimulation is a common adjunct used to promote bone healing; its efficacy, however, remains uncertain. We conducted a meta-analysis of randomized sham-controlled trials to establish the efficacy of electrical stimulation for bone healing. We identified all trials randomizing patients to electrical or sham ...
journal_title:Scientific reports
pub_type: 杂志文章,meta分析,评审
doi:10.1038/srep31724
更新日期:2016-08-19 00:00:00
abstract::Difficulties in the production of lignin from rice straw because of high silica content in the recovered lignin reduce its recovery yield and applications as bio-fuel and aromatic chemicals. Therefore, the objective of this study is to develop a novel method to reduce the silica content in lignin from rice straw more ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-77867-5
更新日期:2020-12-04 00:00:00
abstract::Linearly polarized microwave radiation is shown to have its plane of polarization converted to the orthogonal state upon reflection from an ultrathin (λ/25) cavity array. The structure benefits from an uncomplicated design consisting of a metallic grating closely separated from a ground plane by a dielectric spacer. A...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep09366
更新日期:2015-03-23 00:00:00
abstract::Somatic embryogenesis receptor kinases (SERKs) belong to a small gene family of receptor-like kinases involved in signal transduction. A total of 54 genes were shortlisted from the wheat genome survey sequence of which 5 were classified as SERKs and 49 were identified as SERK-like (SERLs). Tissue- specific expression ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-10038-1
更新日期:2017-09-28 00:00:00
abstract::A hypereutectic Al-Fe-Cu alloy with a high-volume fraction ferro-aluminum second phase (AlFe phases for short) was reheated in the solid-liquid region and the microstructure evolution was investigated. During semisolid heating, the high-melting AlFe phases in the Al-Fe-Cu alloy were demonstrated to stunt the grain gro...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-021-80983-5
更新日期:2021-01-15 00:00:00
abstract::Emerging evidence demonstrates the importance of sufficient vitamin D (1α, 25-dihydroxyvitamin D3) levels during early life stage development with deficiencies associated with long-term effects into adulthood. While vitamin D has traditionally been associated with mineral ion homeostasis, accumulating evidence suggest...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-72622-2
更新日期:2020-09-29 00:00:00
abstract::Diffusion processes are widespread in biological and chemical systems, where they play a fundamental role in the exchange of substances at the cellular level and in determining the rate of chemical reactions. Recently, the classical picture that portrays diffusion as random uncorrelated motion of molecules has been re...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep14486
更新日期:2015-09-30 00:00:00
abstract::Microphysiological systems (MPSs) are in vitro models that capture facets of in vivo organ function through use of specialized culture microenvironments, including 3D matrices and microperfusion. Here, we report an approach to co-culture multiple different MPSs linked together physiologically on re-useable, open-syste...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-22749-0
更新日期:2018-03-14 00:00:00
abstract::Soil heavy metals exhibit significant spatiotemporal variability and are strongly correlated with other soil heavy metals. Thus, other heavy metals can be used to improve the accuracy of predictions when performing spatiotemporal predictions of soil heavy metals within a given area. In this study, we propose the spati...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-17018-5
更新日期:2017-12-01 00:00:00
abstract::We reveal an outstanding potential of water as an inexpensive, abundant and bio-friendly high-refractive-index material for creating tunable all-dielectric photonic structures and metamaterials. Specifically, we demonstrate thermal, mechanical and gravitational tunability of magnetic and electric resonances in a metam...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep13535
更新日期:2015-08-27 00:00:00
abstract::We employed RNA sequencing analysis to reveal dysregulated lncRNAs in lung cancer utilizing 461 lung adenocarcinomas and 156 normal lung tissues from 3 separate cohorts. We found that LINC00152 was highly overexpressed in lung tumors as compared to their adjacent normal tissues. Patients with high LINC00152 expression...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-03043-x
更新日期:2017-06-07 00:00:00
abstract::Tetrastatin, a 230 amino acid sequence from collagen IV, was previously demonstrated to inhibit melanoma progression. In the present paper, we identified the minimal active sequence (QKISRCQVCVKYS: QS-13) that reproduced the anti-tumor effects of whole Tetrastatin in vivo and in vitro on melanoma cell proliferation, m...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-28003-x
更新日期:2018-06-29 00:00:00
abstract::The frequency and form of visual signals can be shaped by selection from predators, prey or both. When a signal simultaneously attracts predators and prey selection may favour a strategy that minimizes risks while attracting prey. Accordingly, varying the frequency and form of the silken decorations added to their web...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep09543
更新日期:2015-03-30 00:00:00
abstract::IncX4 plasmids are associated with the dissemination of the mcr-1 genes in Enterobacteriaceae. We screened IncX4 plasmids among 2,470 isolates of Enterobacteriaceae and determined the mcr-1 positive isolates. Forty-three isolates were observed to carry IncX4 type plasmid, among which 13 were identified to carry mcr-1 ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-00095-x
更新日期:2017-03-24 00:00:00
abstract::This study proposes a new method of visualizing the ambient dose rate distribution using artificial neural networks (ANNs) from airborne radiation monitoring results. The method was applied to the results of the airborne radiation monitoring which was conducted around the Fukushima Daiichi Nuclear Power Plant by an un...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-021-81546-4
更新日期:2021-01-20 00:00:00
abstract::Feynman once asked physicists to build better electron microscopes to be able to watch biology at work. While electron microscopes can now provide atomic resolution, electron beam induced specimen damage precludes high resolution imaging of sensitive materials, such as single proteins or polymers. Here, we use simulat...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-01841-x
更新日期:2017-05-10 00:00:00
abstract::When lightning strikes soil, it may generate a cylindrical tube of glass known as a fulgurite. The morphology of a fulgurite is ultimately a consequence of the energy of the lightning strike that formed it, and hence fulgurites may be useful in elucidating the energy distribution frequency of cloud-to-ground lightning...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep30586
更新日期:2016-07-28 00:00:00
abstract::The physiological importance of CD151 tetraspanin is known from somatic cells and its outside-in signalling through integrins was described. In male germ cells, two tetraspanins, CD9 and CD81, are involved in sperm-egg membrane fusion, and similarly to integrins, they occupy characteristic regions. We report here on a...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-61334-2
更新日期:2020-03-09 00:00:00
abstract::The coincidence of flood flows in a mainstream and its tributaries may lead to catastrophic floods. In this paper, we investigated the flood coincidence risk under nonstationary conditions arising from climate changes. The coincidence probabilities considering flood occurrence dates and flood magnitudes were calculate...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-60264-3
更新日期:2020-02-25 00:00:00
abstract::Chronic HIV infection results in impairment of gut-associated lymphoid tissue leading to systemic immune activation. We previously showed that in early SIV-infected rhesus macaques intestinal dysfunction is initiated with the induction of the IL-1β pathway in the small intestine and reversed by treatment with an exoge...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep24723
更新日期:2016-04-22 00:00:00
abstract::Fibrin polymerization is a necessary part of hemostasis but clots can obstruct blood vessels and cause heart attacks and strokes. The polymerization reactions are specific and controlled, involving strong knob-into-hole interactions to convert soluble fibrinogen into insoluble fibrin. It has long been assumed that clo...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep00879
更新日期:2012-01-01 00:00:00
abstract::During development, cell division often generates two daughters with different developmental fates. Distinct daughter identities can result from the physical polarity and size asymmetry itself, as well as the subsequent activation of distinct fate programmes in each daughter. Asymmetric divisions are a feature of the ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-01675-7
更新日期:2017-06-14 00:00:00