Quantum imaging of current flow in graphene.

abstract：:Intrachain charge transport is unique to conjugated polymers distinct from inorganic and small molecular semiconductors and is key to achieving high-performance organic electronics. Polymer backbone planarity and thin film morphology sensitively modulate intrachain charge transport. However, simple, generic nonsynthet...

journal_title：Science advances

authors： Park KS,Kwok JJ,Dilmurat R,Qu G,Kafle P,Luo X,Jung SH,Olivier Y,Lee JK,Mei J,Beljonne D,Diao Y

更新日期：2019-08-09 00:00:00

abstract：:Mass loss from the West Antarctic ice shelves and glaciers has been linked to basal melt by ocean heat flux. The Totten Ice Shelf in East Antarctica, which buttresses a marine-based ice sheet with a volume equivalent to at least 3.5 m of global sea-level rise, also experiences rapid basal melt, but the role of ocean f...

journal_title：Science advances

authors： Rintoul SR,Silvano A,Pena-Molino B,van Wijk E,Rosenberg M,Greenbaum JS,Blankenship DD

更新日期：2016-12-16 00:00:00

abstract：:To gain insights into neutrophil heterogeneity dynamics in the context of sterile inflammation and wound healing, we performed a pseudotime analysis of single-cell flow cytometry data using the spanning-tree progression analysis of density-normalized events algorithm. This enables us to view neutrophil transitional su...

journal_title：Science advances

authors： Turner TC,Sok MCP,Hymel LA,Pittman FS,York WY,Mac QD,Vyshnya S,Lim HS,Kwong GA,Qiu P,Botchwey EA

更新日期：2020-10-30 00:00:00

abstract：:The tet methylcytosine dioxygenase 2 (TET2) enzyme catalyzes the conversion of the modified DNA base 5-methylcytosine to 5-hydroxymethylcytosine. TET2 is frequently mutated or dysregulated in multiple human cancers, and loss of TET2 is associated with changes in DNA methylation patterns. Here, using newly developed TE...

journal_title：Science advances

authors： Wang L,Ozark PA,Smith ER,Zhao Z,Marshall SA,Rendleman EJ,Piunti A,Ryan C,Whelan AL,Helmin KA,Morgan MA,Zou L,Singer BD,Shilatifard A

更新日期：2018-11-07 00:00:00

abstract：:SWI/SNF (switch/sucrose nonfermenting) complexes regulate transcription through chromatin remodeling and opposing gene silencing by Polycomb group (PcG) proteins. Genes encoding SWI/SNF components are critical for normal development and frequently mutated in human cancer. We characterized the in vivo contributions of ...

journal_title：Science advances

authors： van der Vaart A,Godfrey M,Portegijs V,van den Heuvel S

更新日期：2020-05-20 00:00:00

abstract：:Calcium homeostasis modulator 1 (CALHM1) is a voltage-gated ATP release channel that plays an important role in neural gustatory signaling and the pathogenesis of Alzheimer's disease. Here, we present a cryo-electron microscopy structure of full-length Ca2+-free CALHM1 from Danio rerio at an overall resolution of 3.1 ...

journal_title：Science advances

authors： Ren Y,Wen T,Xi Z,Li S,Lu J,Zhang X,Yang X,Shen Y

更新日期：2020-07-17 00:00:00

abstract：:Under rapid high-temperature, high-pressure loading, lattices exhibit complex elastic-inelastic responses. The dynamics of these responses are challenging to measure experimentally because of high sample density and extremely small relevant spatial and temporal scales. Here, we use an x-ray free-electron laser providi...

journal_title：Science advances

authors： Brown SB,Gleason AE,Galtier E,Higginbotham A,Arnold B,Fry A,Granados E,Hashim A,Schroer CG,Schropp A,Seiboth F,Tavella F,Xing Z,Mao W,Lee HJ,Nagler B

更新日期：2019-03-08 00:00:00

abstract：:Kv2.1 channels mediate cell death-enabling loss of cytosolic potassium in neurons following plasma membrane insertion at somatodendritic clusters. Overexpression of the carboxyl terminus (CT) of the cognate channel Kv2.2 is neuroprotective by disrupting Kv2.1 surface clusters. Here, we define a seven-amino acid declus...

journal_title：Science advances

authors： Schulien AJ,Yeh CY,Orange BN,Pav OJ,Hopkins MP,Moutal A,Khanna R,Sun D,Justice JA,Aizenman E

更新日期：2020-07-01 00:00:00

abstract：:A rapid, direct, and low-cost method for detecting bacterial toxins associated with common gastrointestinal diseases remains a great challenge despite numerous studies and clinical assays. Motion-based detection through tracking the emerging micro- and nanorobots has shown great potential in chemo- and biosensing due ...

journal_title：Science advances

authors： Zhang Y,Zhang L,Yang L,Vong CI,Chan KF,Wu WKK,Kwong TNY,Lo NWS,Ip M,Wong SH,Sung JJY,Chiu PWY,Zhang L

更新日期：2019-01-11 00:00:00

abstract：:Organic carbonyl compounds represent a promising class of electrode materials for secondary batteries; however, the storage mechanism still remains unclear. We take Na2C6H2O4 as an example to unravel the mechanism. It consists of alternating Na-O octahedral inorganic layer and π-stacked benzene organic layer in spatia...

journal_title：Science advances

authors： Wu X,Jin S,Zhang Z,Jiang L,Mu L,Hu YS,Li H,Chen X,Armand M,Chen L,Huang X

更新日期：2015-09-18 00:00:00

abstract：:In the post-Moore era, an electrically driven monolithic optoelectronic integrated circuit (OEIC) fabricated from a single material is pursued globally to enable the construction of wafer-scale compact computing systems with powerful processing capabilities and low-power consumption. We report a monolithic plasmonic i...

journal_title：Science advances

authors： Liu Y,Zhang J,Liu H,Wang S,Peng LM

更新日期：2017-10-20 00:00:00

abstract：:The established model-free methods for the processing of two-electron dipolar spectroscopy data [DEER (double electron-electron resonance), PELDOR (pulsed electron double resonance), DQ-EPR (double-quantum electron paramagnetic resonance), RIDME (relaxation-induced dipolar modulation enhancement), etc.] use regularize...

journal_title：Science advances

authors： Worswick SG,Spencer JA,Jeschke G,Kuprov I

更新日期：2018-08-24 00:00:00

abstract：:Over the past decade, the Arctic has warmed by 0.75°C, far outpacing the global average, while Antarctic temperatures have remained comparatively stable. As Earth approaches 2°C warming, the Arctic and Antarctic may reach 4°C and 2°C mean annual warming, and 7°C and 3°C winter warming, respectively. Expected consequen...

journal_title：Science advances

authors： Post E,Alley RB,Christensen TR,Macias-Fauria M,Forbes BC,Gooseff MN,Iler A,Kerby JT,Laidre KL,Mann ME,Olofsson J,Stroeve JC,Ulmer F,Virginia RA,Wang M

更新日期：2019-12-04 00:00:00

abstract：:Surface plasmon resonance microscopy (SPRM) with single-direction illumination is a powerful platform for biomedical imaging because of its wide-field, label-free, and high-surface-sensitivity imaging capabilities. However, two disadvantages prevent wider use of SPRM. The first is its poor spatial resolution that can ...

journal_title：Science advances

authors： Kuai Y,Chen J,Tang X,Xiang Y,Lu F,Kuang C,Xu L,Shen W,Cheng J,Gui H,Zou G,Wang P,Ming H,Liu J,Liu X,Lakowicz JR,Zhang D

更新日期：2019-03-29 00:00:00

abstract：:Engineered surfaces with reversibly switching interfacial properties, such as wettability and liquid repellency, are highly desirable in diverse application fields but are rare. We have developed a general concept to prepare metallic porous surfaces with exceptionally powerful wettability switch capabilities and liqui...

journal_title：Science advances

authors： Liu Y,Zhao L,Lin J,Yang S

更新日期：2019-11-01 00:00:00

abstract：:The first example of a homogeneous silver(I)-catalyzed aerobic oxidation of aldehydes in water is reported. More than 50 examples of different aliphatic and aromatic aldehydes, including natural products, were tested, and all of them successfully underwent aerobic oxidation to give the corresponding carboxylic acids i...

journal_title：Science advances

authors： Liu M,Wang H,Zeng H,Li CJ

更新日期：2015-03-27 00:00:00

abstract：:Recent research on piezoelectric materials is predominantly devoted to enhancing the piezoelectric coefficient, but overlooks its sign, largely because almost all of them exhibit positive longitudinal piezoelectricity. The only experimentally known exception is ferroelectric polymer poly(vinylidene fluoride) and its c...

journal_title：Science advances

authors： You L,Zhang Y,Zhou S,Chaturvedi A,Morris SA,Liu F,Chang L,Ichinose D,Funakubo H,Hu W,Wu T,Liu Z,Dong S,Wang J

更新日期：2019-04-19 00:00:00

abstract：:Changes in structure and function of small muscular arteries play a major role in the pathophysiology of pulmonary hypertension, a burgeoning public health challenge. Improved anatomically mimetic in vitro models of these microvessels are urgently needed because nonhuman vessels and previous models do not accurately r...

journal_title：Science advances

authors： Jin Q,Bhatta A,Pagaduan JV,Chen X,West-Foyle H,Liu J,Hou A,Berkowitz D,Kuo SC,Askin FB,Nguyen TD,Gracias DH,Romer LH

更新日期：2020-03-25 00:00:00

abstract：:Cancer cells often encounter oxidative stress. However, it is unclear whether normal and cancer cells differentially respond to oxidative stress. Here, we demonstrated that under oxidative stress, hepatocellular carcinoma (HCC) cells exhibit increased antioxidative response and survival rates compared to normal hepato...

journal_title：Science advances

authors： Xu D,Li X,Shao F,Lv G,Lv H,Lee JH,Qian X,Wang Z,Xia Y,Du L,Zheng Y,Wang H,Lyu J,Lu Z

更新日期：2019-04-24 00:00:00

abstract：:Fluid commonly flows in response to an external pressure gradient. However, when a tunnel-containing hydrogel is immersed in water, spontaneous flow occurs through the tunnel without any pressure gradient. We confirmed this flow in a wide range of plant- and animal-derived hydrogels. The flow appears to be driven by a...

journal_title：Science advances

authors： Li Z,Pollack GH

更新日期：2020-05-08 00:00:00

abstract：:Immotile cilia sense extracellular signals such as fluid flow, but whether Ca2+ plays a role in flow sensing has been unclear. Here, we examined the role of ciliary Ca2+ in the flow sensing that initiates the breaking of left-right (L-R) symmetry in the mouse embryo. Intraciliary and cytoplasmic Ca2+ transients were d...

journal_title：Science advances

authors： Mizuno K,Shiozawa K,Katoh TA,Minegishi K,Ide T,Ikawa Y,Nishimura H,Takaoka K,Itabashi T,Iwane AH,Nakai J,Shiratori H,Hamada H

更新日期：2020-07-22 00:00:00

abstract：:The development of advanced chemical-to-electrical energy conversions requires fast and efficient electrocatalysis of multielectron/multiproton reactions, such as the oxygen reduction reaction (ORR). Using molecular catalysts, correlations between the reaction rate and energy efficiency have recently been identified. ...

journal_title：Science advances

authors： Martin DJ,Mercado BQ,Mayer JM

更新日期：2020-03-13 00:00:00

abstract：:Calcium silicate hydrate (C-S-H) is the binder in concrete, the most used synthetic material in the world. The main weakness of concrete is the lack of elasticity and poor flexural strength considerably limiting its potential, making reinforcing steel constructions necessary. Although the properties of C-S-H could be ...

journal_title：Science advances

authors： Picker A,Nicoleau L,Burghard Z,Bill J,Zlotnikov I,Labbez C,Nonat A,Cölfen H

更新日期：2017-11-29 00:00:00

abstract：:Stimulation of Escherichia coli by exponential ramps of chemoattractants generates step changes in the concentration of the response regulator, CheY-P. Because flagellar motors are ultrasensitive, this should change the fraction of time that motors spin clockwise, the CWbias. However, early work failed to show changes...

journal_title：Science advances

authors： Lele PP,Shrivastava A,Roland T,Berg HC

更新日期：2015-10-16 00:00:00

abstract：:Lake evaporation can influence basin-wide hydrological cycles and is an important factor in loss of water resources in endorheic lakes of the Tibetan Plateau. Because of the scarcity of data, published lake evaporation values are inconsistent, and their spatial distribution has never been reported. Presenting a plausi...

journal_title：Science advances

authors： Wang B,Ma Y,Su Z,Wang Y,Ma W

更新日期：2020-06-26 00:00:00

abstract：:Characterizing and understanding the emergence of multiple macroscopically ordered electronic phases through subtle tuning of temperature, pressure, and chemical doping has been a long-standing central issue for complex materials research. We report the first comprehensive studies of optical doping-induced emergence o...

journal_title：Science advances

authors： Han TR,Zhou F,Malliakas CD,Duxbury PM,Mahanti SD,Kanatzidis MG,Ruan CY

更新日期：2015-06-26 00:00:00

abstract：:Efforts at altering the dismal prognosis of pediatric midline gliomas focus on direct delivery strategies like convection-enhanced delivery (CED), where a cannula is implanted into tumor. Successful CED treatments require confirmation of tumor coverage, dosimetry, and longitudinal in vivo pharmacokinetic monitoring. T...

journal_title：Science advances

authors： Tosi U,Kommidi H,Adeuyan O,Guo H,Maachani UB,Chen N,Su T,Zhang G,Pisapia DJ,Dahmane N,Ting R,Souweidane MM

更新日期：2020-07-24 00:00:00

abstract：:Previous studies have extensively investigated the impact of Arctic sea ice anomalies on the midlatitude circulation and associated surface climate in winter. However, there is an ongoing scientific debate regarding whether and how sea ice retreat results in the observed cold anomaly over the adjacent continents. We p...

journal_title：Science advances

authors： Zhang P,Wu Y,Simpson IR,Smith KL,Zhang X,De B,Callaghan P

更新日期：2018-07-25 00:00:00

abstract：:Dysregulated physical stresses are generated during tumorigenesis that affect the surrounding compliant tissues including adipocytes. However, the effect of physical stressors on the behavior of adipocytes and their cross-talk with tumor cells remain elusive. Here, we demonstrate that compression of cells, resulting f...

journal_title：Science advances

authors： Li Y,Mao AS,Seo BR,Zhao X,Gupta SK,Chen M,Han YL,Shih TY,Mooney DJ,Guo M

更新日期：2020-01-22 00:00:00

abstract：:Massive declines in population abundances of marine animals have been documented over century-long time scales. However, analogous loss of spatial extent of habitat-forming organisms is less well known because georeferenced data are rare over long time scales, particularly in subtidal, tropical marine regions. We use ...

journal_title：Science advances

authors： McClenachan L,O'Connor G,Neal BP,Pandolfi JM,Jackson JBC

更新日期：2017-09-06 00:00:00