Abstract：
:Run-and-tumble motility is widely used by swimming microorganisms including numerous prokaryotic and eukaryotic organisms. Here, we experimentally investigate the run-and-tumble dynamics of the bacterium E. coli in polymeric solutions. We find that even small amounts of polymer in solution can drastically change E. coli dynamics: cells tumble less and their velocity increases, leading to an enhancement in cell translational diffusion and a sharp decline in rotational diffusion. We show that suppression of tumbling is due to fluid viscosity while the enhancement in swimming speed is mainly due to fluid elasticity. Visualization of single fluorescently labeled DNA polymers reveals that the flow generated by individual E. coli is sufficiently strong to stretch polymer molecules and induce elastic stresses in the fluid, which in turn can act on the cell in such a way to enhance its transport. Our results show that the transport and spread of chemotactic cells can be independently modified and controlled by the fluid material properties.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Patteson AE,Gopinath A,Goulian M,Arratia PEdoi
10.1038/srep15761subject
Has Abstractpub_date
2015-10-28 00:00:00pages
15761issn
2045-2322pii
srep15761journal_volume
5pub_type
杂志文章abstract：:The present study investigated the effect of acute stress on attentional bias to threat using behavioral and ERP methods. Sixty-two male participants were randomly assigned to a stress condition (Trier Social Stress Test) or a control condition. To examine the impact of stress-induced cortisol on attentional bias to t...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-14138-w
更新日期：2017-11-06 00:00:00
abstract：:Languages may differ in terms of the functional units of word-form encoding used in spoken word production. It is widely accepted that segments are the primary units used in Indo-European languages. However, it is controversial what the functional units (syllables or segments) in Chinese spoken word production are. In...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-48033-3
更新日期：2019-08-13 00:00:00
abstract：:Biosynthesis of sakuranetin, a flavonoid anti-fungal phytoalexin that occurs in rice, is highly dependent on jasmonic acid (JA) signalling and induced by a variety of environmental stimuli. We previously identified OsNOMT, which encodes naringenin 7-O-methyltransferase (NOMT); NOMT is a key enzyme for sakuranetin prod...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep40175
更新日期：2017-01-09 00:00:00
abstract：:There are many types of autoregressive patterns in financial time series, and they form a transmission process. Here, we define autoregressive patterns quantitatively through an econometrical regression model. We present a computational algorithm that sets the autoregressive patterns as nodes and transmissions between...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep06290
更新日期：2014-09-05 00:00:00
abstract：:(E)-Methyl-N'-nitrobenzylidene-benzenesulfonohydrazide (MNBBSH) compounds were synthesized using a condensation procedure from the derivatives of nitrobenzaldehyde and 4-Methyl-benzenesulfonylhydrazine, which crystallized in ethanol and methanol as well as characterized by FTIR, UV-Vis, 1H-NMR, and 13C-NMR. MNBBSH str...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-05703-4
更新日期：2017-07-19 00:00:00
abstract：:Breast cancer brain metastasis (BCBM) remains a major clinical problem. Approximately 10-16% of patients with breast cancer develop brain metastases (BCBM). However, no systemic therapy has gained regulatory approval for the specific treatment of BCBM and this remains an area of persistent, unmet medical need. Rapid, ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-36874-3
更新日期：2019-01-24 00:00:00
abstract：:Boreal forests play critical roles in global carbon, water and energy cycles. Recent studies suggest drought is causing a decline in boreal spruce growth, leading to predictions of widespread mortality and a shift in dominant vegetation type in interior Alaska. We took advantage of a large set of tree cores collected ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-15644-7
更新日期：2017-11-10 00:00:00
abstract：:Electric double-layer capacitors (EDLCs) or supercapacitors (SCs) are fast energy storage devices with high pulse efficiency and superior cyclability, which makes them useful in various applications including electronics, vehicles and grids. Aqueous SCs are considered to be more environmentally friendly than those bas...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep39836
更新日期：2017-01-05 00:00:00
abstract：:Integrated photonics promises solutions to questions of stability, complexity, and size in quantum optics. Advances in tunable and non-planar integrated platforms, such as laser-inscribed photonics, continue to bring the realisation of quantum advantages in computation and metrology ever closer, perhaps most easily se...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep09601
更新日期：2015-04-27 00:00:00
abstract：:The spread of multidrug-resistant Staphylococcus aureus strains, including methicillin-resistant S. aureus (MRSA), has shortened the useful life of anti-staphylococcal drugs enormously. Two approaches can be followed to address this problem: screening various sources for new leads for antibiotics or finding ways to di...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-03716-7
更新日期：2017-06-19 00:00:00
abstract：:Myopic traction maculopathy (MTM) can cause vision disabilities in highly myopic eyes. This retrospective case series investigated the clinical outcomes of posterior scleral contraction (PSC) using genipin-cross-linked sclera as the material to treat MTM in highly myopic eyes. In total, 32 eyes from 29 highly myopic p...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep43256
更新日期：2017-02-21 00:00:00
abstract：:As antibody-based diagnosis and therapy grow at an increased pace, there is a need for methods which rapidly and accurately determine antibody-antigen interactions. Here, we report a method for the multiplex determination of antibody epitopes using bacterial cell-surface display. A protein-fragment library with 10(7) ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep00706
更新日期：2012-01-01 00:00:00
abstract：:We have sequenced the genome of the largest freshwater fish species of the world, the arapaima. Analysis of gene family dynamics and signatures of positive selection identified genes involved in the specific adaptations and unique features of this iconic species, in particular it's large size and fast growth. Genome s...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-41457-x
更新日期：2019-03-28 00:00:00
abstract：:The near complete genome sequences of ten field avian orthoreovirus (ARV) strains collected from young chicken between 2002 and 2011 in Hungary have been determined in order to explore the genetic diversity and evolutionary mechanisms affecting ARVs in this region. Sequence analyses and phylogenetic calculations revea...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep36960
更新日期：2016-11-10 00:00:00
abstract：:The time evolution of the distribution and shareability of quantum coherence of a tripartite system in a non-Markovian environment is examined. The total coherence can be decomposed into various contributions, ranging from local, global bipartite and global tripartite, which characterize the type of state. We identify...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-39027-2
更新日期：2019-02-20 00:00:00
abstract：:Recent studies showed that anomalous dry conditions and limited moisture supply roughly between 1998 and 2008, especially in the Southern Hemisphere, led to reduced vegetation productivity and ceased growth in land evapotranspiration (ET). However, natural variability of Earth's climate system can degrade capabilities...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep15956
更新日期：2015-10-30 00:00:00
abstract：:The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) has been counted on for conserving threatened marine fish since it regulates the commercial international trade of these species. Implementation of the international treaty for Mantas included on CITES Appendix II is challengin...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep37567
更新日期：2016-11-23 00:00:00
abstract：:Drug-resistant tuberculosis (TB) is a serious global problem, and pathogen factors involved in the transmission of isoniazid (INH)-resistant TB have not been fully investigated. We performed whole genome sequencing of 332 clinical Mycobacterium tuberculosis (Mtb) isolates collected from patients newly diagnosed with s...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-51812-7
更新日期：2019-10-25 00:00:00
abstract：:Designing a new generation of energy-intensive and sustainable electrode materials for batteries to power a variety of applications is an imperative task. The use of biomaterials as a nanosized structural template for these materials has the potential to produce hitherto unachievable structures. In this report, we hav...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep07736
更新日期：2015-01-13 00:00:00
abstract：:Although there are many reports on the effect of glucose metabolism on oocyte nuclear maturation, there are few studies on its effect on ooplasmic maturation. By manipulating glucose metabolism pathways using a maturation medium that could support oocyte nuclear maturation but only a limited blastocyst formation witho...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep20764
更新日期：2016-02-09 00:00:00
abstract：:Magnesium (Mg) is a lightweight metal with applications in transportation and sustainable battery technologies, but its current production through ore reduction using the conventional Pidgeon process emits large amounts of CO2 and particulate matter (PM2.5). In this work, a novel Pidgeon process driven by microwaves h...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep46512
更新日期：2017-04-12 00:00:00
abstract：:Similar to the onset phase of inflammation, its resolution is a process that unfolds in a manner that is coordinated and regulated by a panel of mediators. Lipoxin A4 (LXA4) has been implicated as an anti-inflammatory, pro-resolving mediator. We hypothesized that LXA4 attenuates or prevents an inflammatory response vi...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-27194-7
更新日期：2018-06-11 00:00:00
abstract：:Aerosol nanoparticle injectors are fundamentally important for experiments where container-free sample handling is needed to study isolated nanoparticles. The injector consists of a nebuliser, a differential pumping unit, and an aerodynamic lens to create and deliver a focused particle beam to the interaction point in...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-45120-3
更新日期：2019-06-20 00:00:00
abstract：:Aim of this retrospective analysis was to evaluate the survival times after percutaneous irreversible electroporation (IRE) in inoperable liver tumors not amenable to thermal ablation. 71 patients (14 females, 57 males, median age 63.5 ± 10.8 years) with 103 liver tumors were treated in 83 interventions using IRE (Nan...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep43687
更新日期：2017-03-07 00:00:00
abstract：:The DEAD-box RNA helicase DDX3 plays divergent roles in tumorigenesis, however, its function in mitosis is unclear. Immunofluorescence indicated that DDX3 localized to centrosome throughout the cell cycle and colocalized with centrosome-associated p53 during mitosis in HCT116 and U2OS cells. DDX3 depletion promoted ch...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-09779-w
更新日期：2017-08-25 00:00:00
abstract：:Metabolomics has emerged as a powerful approach to comprehensively interrogate cellular biochemistry. As such, we applied an untargeted liquid chromatography-mass spectrometry metabolomic strategy to elucidate metabolome changes in the anthracnose-causing hemibiotrophic sorghum pathogen, Colletotrichum sublineolum. An...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-38692-7
更新日期：2019-03-01 00:00:00
abstract：:Myeloid-derived suppressor cells (MDSCs) are highly prevalent inflammatory cells that play a key role in tumor development and are considered therapeutic targets. MDSCs promote tumor growth by blocking T-cell-mediated anti-tumoral immune response through depletion of arginine that is essential for T-cell proliferation...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep31397
更新日期：2016-08-10 00:00:00
abstract：:Advanced maternal age is associated with an increased risk of pregnancy complications. It programmes sex-specific cardiovascular dysfunction in rat offspring, however the intrauterine mechanisms involved remain unknown. This study in the rat assessed the impact of advanced maternal age on placental phenotype in relati...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-53199-x
更新日期：2019-11-28 00:00:00
abstract：:To explore soil organic carbon (SOC) accumulation mechanisms, the dynamics of C functional groups and macroaggregation were studied synchronously through aggregate fractionation and (13)C NMR spectroscopy in sandy loam soil following an 18-year application of compost and fertilizer in China. Compared with no fertilize...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep13804
更新日期：2015-09-11 00:00:00
abstract：:Overuse of antibiotics has caused serious problems, such as appearance of super bacteria, whose accumulation in the human body through the food chain is a concern. Kanamycin is a common antibiotic used to treat diverse infections; however, residual kanamycin can cause many side effects in humans. Thus, development of ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep40305
更新日期：2017-01-05 00:00:00
