Abstract：
:Low-dimensional semiconductor structurers formed on a substrate surface at pre-defined locations and with nano-precision placement is of vital interest. The potential of tailoring their electrical and optical properties will revolutionize the next generation of optoelectronic devices. Traditionally, highly aligned self-assembly of semiconductors relies on Stranski- Krastanov growth mode. In this work, we demonstrate a pathway towards ordered configuration of Ge islands on low lattice mismatch GaAs (110) substrate patterned using depth-controlled nanoindentation. Diamond probe tips with different geometries are used to nano-mechanically stamp the surface of GaAs (110). This creates nanoscale volumes of dislocation-mediated deformation which acts to bias nucleation. Results show that nanostamped GaAs exhibits selective-nucleation of Ge at the indent sites. Ge islands formed on a surface patterned using cube corner tip have height of ~10 nm and lateral size of ~225 nm. Larger islands are formed by using Vickers and Berkovich diamond tips (~400 nm). The strain state of the patterned structures is characterized by micro-Raman spectroscopy. A strain value up to 2% for all tip geometries has been obtained. Additionally, strong room temperature photoluminescence (PL) emission is observed around 1.9 µm (650 meV). The observed strain-induced enhancement in the light-emission efficiency is attributed to direct conduction to heavy-hole (cΓ-HH) and conduction to light-hole (cΓ-LH) transitions. The inherent simplicity of the proposed method offers an attractive technique to manufacture semiconductor quantum dot structures for future electronic and photonic applications.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Dushaq G,Rasras Mdoi
10.1038/s41598-019-50633-ysubject
Has Abstractpub_date
2019-10-02 00:00:00pages
14221issue
1issn
2045-2322pii
10.1038/s41598-019-50633-yjournal_volume
9pub_type
杂志文章abstract：:CRISPR-Cas9 is a powerful new tool for genome editing, but this technique creates mosaic mutations that affect the efficiency and precision of its ability to edit the genome. Reducing mosaic mutations is particularly important for gene therapy and precision genome editing. Although the mechanisms underlying the CRSIPR...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep42081
更新日期：2017-02-03 00:00:00
abstract：:Although diatoms have been extensively studied as bioreactors, only a limited number of efficient gene promoters are available. Therefore, the development of new endogenous promoters is important for the heterologous production of a variety of recombinant proteins. Herein, we identified the most abundant secreted prot...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-45786-9
更新日期：2019-07-09 00:00:00
abstract：:Phospholipase A2-like (PLA2-like) proteins contribute to the development of muscle necrosis in Viperidae snake bites and are not efficiently neutralized by current antivenom treatments. The toxic mechanisms of PLA2-like proteins are devoid of catalytic activity and not yet fully understood, although structural and fun...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-15614-z
更新日期：2017-11-14 00:00:00
abstract：:Air pollution has been classified as a group 1 carcinogen in humans, but the underlying tumourigenic mechanisms remain unclear. In Xuanwei city of Yunnan Province, the lung cancer incidence is among the highest in China, owing to severe air pollution generated by the combustion of smoky coal, providing a unique opport...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep14331
更新日期：2015-09-23 00:00:00
abstract：:Sorting nexin 27 (SNX27) recycles PSD-95, Dlg1, ZO-1 (PDZ) domain-interacting membrane proteins and is essential to sustain adequate brain functions. Here we define a fundamental SNX27 function in T lymphocytes controlling antigen-induced transcriptional activation and metabolic reprogramming. SNX27 limits the activat...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-16370-w
更新日期：2017-11-27 00:00:00
abstract：:We present a new transcriptome assembly of the Pacific whiteleg shrimp (Litopenaeus vannamei), the species most farmed for human consumption. Its functional annotation, a substantial improvement over previous ones, is provided freely. RNA-Seq with Illumina HiSeq technology was used to analyze samples extracted from sh...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep07081
更新日期：2014-11-25 00:00:00
abstract：:Macular edema due to neovascular age-related macular degeneration, diabetes or retinal vein occlusion can cause central vision loss. Intravitreal treatment with antibody-based biopharmaceutical compounds designed to neutralize vascular endothelial growth factor (VEGF) has proven to be an efficient strategy to ameliora...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-20525-8
更新日期：2018-02-01 00:00:00
abstract：:Recently, minocycline, a tetracycline antibiotic, has been reported to improve symptoms of psychiatric disorders and to facilitate sober decision-making in healthy human subjects. Here we show that minocycline also reduces the risk of the 'honey trap' during an economic exchange. Males tend to cooperate with physicall...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep01685
更新日期：2013-01-01 00:00:00
abstract：:Transition metals are a group of elements widespread in aquatic environments that can be hazardous when concentrations exceeding threshold values. Due to insufficient data, criteria maximum concentrations (CMCs) of only seven transition metals for protecting aquatic life have been recommended by the USEPA. Hence, it i...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep22515
更新日期：2016-03-03 00:00:00
abstract：:The evaporation of seawater in arid climates is currently the main accepted driving mechanism for the formation of ancient and recent salt deposits in shallow basins. However, the deposition of huge amounts of marine salts, including the formation of tens of metres of highly soluble types (tachyhydrite and bischofite)...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-48138-9
更新日期：2019-08-12 00:00:00
abstract：:Prenylated indole diketopiperazine (DKP) alkaloids are important bioactive molecules or their precursors. In the context of synthetic biology, efficient means for their biological production would increase their chemical diversification and the discovery of novel bioactive compounds. Here, we prove the suitability of ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-45519-y
更新日期：2019-06-25 00:00:00
abstract：:Many species can successfully colonize new areas despite their propagules having low genetic variation. We assessed whether the decreased genetic diversity could result in temporal fluctuations of genetic parameters of the new populations of an invasive species, western flower thrips, Frankliniella occidentalis, using...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep11877
更新日期：2015-07-03 00:00:00
abstract：:Dengue fever is one of the most important mosquito-borne viral infections in large parts of tropical and subtropical countries and is a significant public health concern and socioeconomic burden. There is an urgent need to develop antivirals that can effectively reduce dengue virus (DENV) replication and decrease vira...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-45095-1
更新日期：2019-06-18 00:00:00
abstract：:For accurate micro-scale quantification of a specific protein in biological fluids, immunoaffinity chromatography (IAC) and isoelectric focusing (IEF) were combined in a single fused-silica capillary. The inner wall of the capillary was coated with an anti-E-tag antibody at the inlet side to form an IAC column, and po...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep39221
更新日期：2016-12-15 00:00:00
abstract：:Long-term high-fat diet (HFD) consumption leads to not only obese-insulin resistance, but also impaired left ventricular (LV) function. Vagus nerve stimulation (VNS) has been shown to exert cardioprotection. However, its effects on the heart and metabolic parameters under obese-insulin resistant condition is not known...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep19749
更新日期：2016-02-01 00:00:00
abstract：:Generalized vitiligo is an autoimmune disease characterized by melanocyte loss, which results in patchy depigmentation of skin and hair. Recent studies suggested the key role of CD8+T lymphocytes for mediating immune response in vitiligo through melanocyte differentiation antigens, including tyrosinase, gp100 and Mela...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep36360
更新日期：2016-11-08 00:00:00
abstract：:The concept of substrate inhibition to prevent its phosphorylation has potential in drug discovery and is envisioned to treat the autoimmune disorder multiple sclerosis (MS). Glia maturation factor-β (GMF-β) Ser83 phosphorylation by protein kinase A (PKA) is pivotal in the activation of GMF-β-p38MAPK-NFκB biochemical ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-60710-2
更新日期：2020-03-02 00:00:00
abstract：:The chorioallantoic-membrane (CAM)-assay is an established model for in vivo tumor research. Contrary to rodent-xenograft-models, the CAM-assay does not require breeding of immunodeficient strains due to native immunodeficiency. This allows xenografts to grow on the non-innervated CAM without pain or impairment for th...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-75660-y
更新日期：2020-10-29 00:00:00
abstract：:Spintronic devices currently rely on magnetic switching or controlled motion of domain walls by an external magnetic field or spin-polarized current. Achieving the same degree of magnetic controllability using an electric field has potential advantages including enhanced functionality and low power consumption. Here w...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep00258
更新日期：2012-01-01 00:00:00
abstract：:Critical regulation of bile acid (BA) pool size and composition occurs via an intensive molecular crosstalk between the liver and gut, orchestrated by the combined actions of the nuclear Farnesoid X receptor (FXR) and the enterokine fibroblast growth factor 19 (FGF19) with the final aim of reducing hepatic BA synthesi...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-35496-z
更新日期：2018-11-21 00:00:00
abstract：:Understanding the transcriptional regulatory elements that influence the progression of liver disease in the presence of hepatitis C virus (HCV) infection is critical for the development of diagnostic and therapeutic approaches. Systems biology provides a roadmap by which these elements may be integrated. In this stud...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-32464-5
更新日期：2018-09-24 00:00:00
abstract：:Thioflavin T (ThT) is standardly used as a fluorescent marker to detect aggregation of amyloid fibrils by conventional fluorescence microscopy, including polarization resolved imaging that brings information on the orientational order of the fibrils. These techniques are however diffraction limited and cannot provide ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-12864-9
更新日期：2017-10-02 00:00:00
abstract：:The Paraná delta, growing at a rate of c. 2 km(2) yr(-1) since 6,000 yrs, is one of the most complete records of the Late Holocene in southern South America. The evolution of this 17,400 km(2) delta enclosed in Plata estuary, can be tracked by a series of 343 successive coastal-ridges showing a c.11 years period, in c...
journal_title：Scientific reports
pub_type： 历史文章,杂志文章
doi：10.1038/srep12851
更新日期：2015-08-06 00:00:00
abstract：:Pochonia chlamydosporia infects eggs and females of economically important plant-parasitic nematodes. The fungal isolates parasitizing different nematodes are genetically distinct. To understand their intraspecific genetic differentiation, parasitic mechanisms, and adaptive evolution, we assembled seven putative chrom...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-19169-5
更新日期：2018-01-18 00:00:00
abstract：:The conformation of the German shepherd dog (GSD) varies considerably within the breed. These differences may result in large variation in the movement and limb loading and undesirable consequences to their musculoskeletal health. This study aimed to investigate the relationship between conformation and biomechanical ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-73550-x
更新日期：2020-10-15 00:00:00
abstract：:The cortisol stress response and the molecular programming of the corticoid axis were characterized for the first time during early ontogeny in a Mediterranean marine teleost, the European sea bass (Dicentrarchus labrax). Sea bass embryos, pre-larvae and larvae at specific points of development were exposed to acute s...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep05525
更新日期：2014-07-02 00:00:00
abstract：:We aimed to assess whether brain volumes may affect the results of deep brain stimulation (DBS) in patients with Parkinson's disease (PD). Eighty-one consecutive patients with PD (male:female 40:41), treated with DBS between June 2012 and December 2017, were enrolled. Total and regional brain volumes were measured usi...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-79138-9
更新日期：2020-12-16 00:00:00
abstract：:Immune-profiling is becoming an important tool to identify predictive markers for the response to immunotherapy. Our goal was to validate multiplex immunofluorescence (mIF) panels to apply to formalin-fixed and paraffin-embedded tissues using a set of immune marker antibodies, with the Opal™ 7 color Kit (PerkinElmer) ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-13942-8
更新日期：2017-10-17 00:00:00
abstract：:Microbiology of a hypersaline oil reservoir located in Central Africa was investigated with molecular and culture methods applied to preserved core samples. Here we show that the community structure was partially acquired during sedimentation, as many prokaryotic 16S rRNA gene sequences retrieved from the extracted DN...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep22960
更新日期：2016-03-11 00:00:00
abstract：:The sensitivity and accuracy of the Risk/Injury/Failure/Loss/End-stage (RIFLE) versus acute kidney injury Network (AKIN) criteria for acute kidney injury (AKI) in critically ill patients remains uncertain. Therefore, we performed a systematic review and meta-analysis to investigate the incidence and prognostic value o...
journal_title：Scientific reports
pub_type： 杂志文章,meta分析
doi：10.1038/srep17917
更新日期：2015-12-07 00:00:00
