Charge-switchable polymeric complex for glucose-responsive insulin delivery in mice and pigs.

abstract：:Two-dimensional (2D) semiconductors have shown great potential for electronic and optoelectronic applications. However, their development is limited by a large Schottky barrier (SB) at the metal-semiconductor junction (MSJ), which is difficult to tune by using conventional metals because of the effect of strong Fermi ...

journal_title：Science advances

authors： Liu Y,Stradins P,Wei SH

更新日期：2016-04-22 00:00:00

abstract：:By introducing a superconducting gap in Weyl or Dirac semimetals, the superconducting state inherits the nontrivial topology of their electronic structure. As a result, Weyl superconductors are expected to host exotic phenomena, such as nonzero-momentum pairing due to their chiral node structure, or zero-energy Majora...

journal_title：Science advances

authors： Bachmann MD,Nair N,Flicker F,Ilan R,Meng T,Ghimire NJ,Bauer ED,Ronning F,Analytis JG,Moll PJW

更新日期：2017-05-24 00:00:00

abstract：:Dynamic nuclear polarization (DNP) is an important technique that uses polarization transfer from electron to nuclear spins to achieve nuclear hyperpolarization. Combining efficient DNP with optically polarized nitrogen-vacancy (NV) centers offers promising opportunities for novel technological applications, including...

journal_title：Science advances

authors： Schwartz I,Scheuer J,Tratzmiller B,Müller S,Chen Q,Dhand I,Wang ZY,Müller C,Naydenov B,Jelezko F,Plenio MB

更新日期：2018-08-31 00:00:00

abstract：:Mesoscale turbulence in the ocean strongly affects the circulation, water mass formation, and transport of tracers. Little is known, however, about how mixing varies on climate timescales. We present the first time-resolved global dataset of lateral mesoscale eddy diffusivities at the ocean surface, obtained by applyi...

journal_title：Science advances

authors： Busecke JJM,Abernathey RP

更新日期：2019-01-23 00:00:00

abstract：:A large body of previous neuroimaging studies suggests that multiple languages are processed and organized in a single neuroanatomical system in the bilingual brain, although differential activation may be seen in some studies because of different proficiency levels and/or age of acquisition of the two languages. Howe...

journal_title：Science advances

authors： Xu M,Baldauf D,Chang CQ,Desimone R,Tan LH

更新日期：2017-07-12 00:00:00

abstract：:In traditional models of heteroepitaxy, the substrate serves mainly as a crystalline template for the thin-film lattice, dictating the initial roughness of the film and the degree of coherent strain. Here, performing in situ surface x-ray diffraction during the heteroepitaxial growth of LaTiO3 on SrTiO3 (001), we find...

journal_title：Science advances

authors： Cook S,Letchworth-Weaver K,Tung IC,Andersen TK,Hong H,Marks LD,Fong DD

更新日期：2019-04-12 00:00:00

abstract：:The past few years have witnessed rapid advances in the synthesis of high-quality perovskite nanocrystals (PNCs). However, despite the impressive developments, the stability of PNCs remains a substantial challenge. The ability to reliably improve stability of PNCs while retaining their individual nanometer size repres...

journal_title：Science advances

authors： He Y,Yoon YJ,Harn YW,Biesold-McGee GV,Liang S,Lin CH,Tsukruk VV,Thadhani N,Kang Z,Lin Z

更新日期：2019-11-29 00:00:00

abstract：:Chaotic itinerancy is a frequently observed phenomenon in high-dimensional nonlinear dynamical systems and is characterized by itinerant transitions among multiple quasi-attractors. Several studies have pointed out that high-dimensional activity in animal brains can be observed to exhibit chaotic itinerancy, which is ...

journal_title：Science advances

authors： Inoue K,Nakajima K,Kuniyoshi Y

更新日期：2020-11-11 00:00:00

abstract：:Copper-containing nitrite reductases (CuNiRs), encoded by nirK gene, are found in all kingdoms of life with only 5% of CuNiR denitrifiers having two or more copies of nirK Recently, we have identified two copies of nirK genes in several α-proteobacteria of the order Rhizobiales including Bradyrhizobium sp. ORS 375, en...

journal_title：Science advances

authors： Rose SL,Antonyuk SV,Sasaki D,Yamashita K,Hirata K,Ueno G,Ago H,Eady RR,Tosha T,Yamamoto M,Hasnain SS

更新日期：2021-01-01 00:00:00

abstract：:Porous materials, which are characterized by the large surface area and percolated nature crucial for transport, play an important role in many technological applications including battery, ion exchange, catalysis, microelectronics, medical diagnosis, and oil recovery. Phase separation of a mixture in such a porous st...

journal_title：Science advances

authors： Shimizu R,Tanaka H

更新日期：2017-12-22 00:00:00

abstract：:Conjugated polymer-polyelectrolyte blends combine and couple electronic semiconductor functionality with selective ionic transport, making them attractive as the active material in organic biosensors and bioelectronics, electrochromic displays, neuromorphic computing, and energy conversion and storage. Although extens...

journal_title：Science advances

authors： Tybrandt K,Zozoulenko IV,Berggren M

更新日期：2017-12-15 00:00:00

abstract：:Modern tropical forests harbor an enormous diversity of squamates, but fossilization in such environments is uncommon and little is known about tropical lizard assemblages of the Mesozoic. We report the oldest lizard assemblage preserved in amber, providing insight into the poorly preserved but potentially diverse mid...

journal_title：Science advances

authors： Daza JD,Stanley EL,Wagner P,Bauer AM,Grimaldi DA

更新日期：2016-03-04 00:00:00

abstract：:Cholesterol-dependent cytolysins (CDCs) form pores in cholesterol-rich membranes, but cholesterol alone is insufficient to explain their cell and host tropism. Here, we show that all eight major CDCs have high-affinity lectin activity that identifies glycans as candidate cellular receptors. Streptolysin O, vaginolysin...

journal_title：Science advances

authors： Shewell LK,Day CJ,Jen FE,Haselhorst T,Atack JM,Reijneveld JF,Everest-Dass A,James DBA,Boguslawski KM,Brouwer S,Gillen CM,Luo Z,Kobe B,Nizet V,von Itzstein M,Walker MJ,Paton AW,Paton JC,Torres VJ,Jennings MP

更新日期：2020-05-22 00:00:00

abstract：:Early identification of pathogens is essential for limiting development of therapy-resistant pathogens and mitigating infectious disease outbreaks. Most bacterial detection schemes use target-specific probes to differentiate pathogen species, creating time and cost inefficiencies in identifying newly discovered organi...

journal_title：Science advances

authors： Aghazadeh A,Lin AY,Sheikh MA,Chen AL,Atkins LM,Johnson CL,Petrosino JF,Drezek RA,Baraniuk RG

更新日期：2016-09-28 00:00:00

abstract：:Porous membranes with ultrafast ion permeation and high ion selectivity are highly desirable for efficient mineral separation, water purification, and energy conversion, but it is still a huge challenge to efficiently separate monatomic ions of the same valence and similar sizes using synthetic membranes. We report me...

journal_title：Science advances

authors： Zhang H,Hou J,Hu Y,Wang P,Ou R,Jiang L,Liu JZ,Freeman BD,Hill AJ,Wang H

更新日期：2018-02-09 00:00:00

abstract：:Here, we demonstrate the use of pump-probe microscopy for high-resolution studies of vermilion degradation. Vermilion (mostly α-HgS), an important red pigment used in historical paintings, blackens over time, and metallic Hg and β-HgS have been implicated as possible degradation products. Conventional analysis techniq...

journal_title：Science advances

authors： Yu J,Warren WS,Fischer MC

更新日期：2019-06-21 00:00:00

abstract：:Rising sea levels will have overwhelmingly negative impacts on coastal communities globally. With previous research focused on how sea-level rise (SLR) affects storm-induced flooding, we show that SLR will also increase both the frequency and the intensity of tsunami-induced flooding, another significant coastal hazar...

journal_title：Science advances

authors： Li L,Switzer AD,Wang Y,Chan CH,Qiu Q,Weiss R

更新日期：2018-08-15 00:00:00

abstract：:The natural selection and the evolutionary optimization of complex shapes in nature are closely related to their functions. Mechanostabilization of shape of biological structure via morphogenesis has several beautiful examples. With the help of simple mechanics-based modeling and experiments, we show an important caus...

journal_title：Science advances

authors： Tiwary CS,Kishore S,Sarkar S,Mahapatra DR,Ajayan PM,Chattopadhyay K

更新日期：2015-05-15 00:00:00

abstract：:The spin-polarized surface states of topological insulators (TIs) are attractive for applications in spintronics and quantum computing. A central challenge with these materials is to reliably tune the chemical potential of their electrons with respect to the Dirac point and the bulk bands. We demonstrate persistent, b...

journal_title：Science advances

authors： Yeats AL,Pan Y,Richardella A,Mintun PJ,Samarth N,Awschalom DD

更新日期：2015-10-09 00:00:00

abstract：:Transcription in eukaryotes correlates with major chromatin changes, including the replacement of old nucleosomal histones by new histones at the promoters of genes. The role of these histone exchange events in transcription remains unclear. In particular, the causal relationship between histone exchange and activator...

journal_title：Science advances

authors： Kassem S,Ferrari P,Hughes AL,Soudet J,Rando OJ,Strubin M

更新日期：2020-09-02 00:00:00

abstract：:Nitrogen oxides, released from fossil fuel use and other combustion processes, affect air quality and climate. From the mid-1990s onward, nitrogen dioxide (NO2) has been monitored from space, and since 2004 with relatively high spatial resolution by the Ozone Monitoring Instrument. Strong upward NO2 trends have been o...

journal_title：Science advances

authors： Lelieveld J,Beirle S,Hörmann C,Stenchikov G,Wagner T

更新日期：2015-08-21 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：:Compound climate extremes are receiving increasing attention because of their disproportionate impacts on humans and ecosystems. However, risks assessments generally focus on univariate statistics. We analyze the co-occurrence of hot and dry summers and show that these are correlated, inducing a much higher frequency ...

journal_title：Science advances

authors： Zscheischler J,Seneviratne SI

更新日期：2017-06-28 00:00:00

abstract：:Black phosphorus quantum dots (BPQDs) are proposed as effective seed-like sites to modulate the nucleation and growth of CsPbI2Br perovskite crystalline thin layers, allowing an enhanced crystallization and remarkable morphological improvement. We reveal that the lone-pair electrons of BPQDs can induce strong binding ...

journal_title：Science advances

authors： Gong X,Guan L,Li Q,Li Y,Zhang T,Pan H,Sun Q,Shen Y,Grätzel C,Zakeeruddin SM,Grätzel M,Wang M

更新日期：2020-04-10 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：:The Mott metal-insulator transition, a paradigm of strong electron-electron correlations, has been considered as a source of intriguing phenomena. Despite its importance for a wide range of materials, fundamental aspects of the transition, such as its universal properties, are still under debate. We report detailed me...

journal_title：Science advances

authors： Gati E,Garst M,Manna RS,Tutsch U,Wolf B,Bartosch L,Schubert H,Sasaki T,Schlueter JA,Lang M

更新日期：2016-12-07 00:00:00

abstract：:Low seismic velocity regions in the mantle and crust are commonly attributed to the presence of silicate melts. Determining melt volume and geometric distribution is fundamental to understanding planetary dynamics. We present a new model for seismic velocity reductions that accounts for the anomalous compressibility o...

journal_title：Science advances

authors： Clark AN,Lesher CE

更新日期：2017-12-13 00:00:00

abstract：:Amorphous solids, such as glasses, have complex responses to deformations, with substantial consequences in material design and applications. In this respect, two intertwined aspects are important: stability and reversibility. It is crucial to understand, on the one hand, how a glass may become unstable due to increas...

journal_title：Science advances

authors： Jin Y,Urbani P,Zamponi F,Yoshino H

更新日期：2018-12-07 00:00:00

abstract：:Ciliary oscillations driven by molecular motors cause fluid motion at micron scale. Stable oscillations require a substantial source of dissipation to balance the energy input of motors. Conventionally, it stems from external fluid. We show, in contrast, that external fluid friction is negligible compared to internal ...

journal_title：Science advances

authors： Mondal D,Adhikari R,Sharma P

更新日期：2020-08-12 00:00:00

abstract：:Infants' remarkable learning abilities allow them to rapidly acquire many complex skills. It has been suggested that infants achieve this learning by optimally allocating their attention to relevant stimuli in the environment, but the underlying mechanisms remain poorly understood. Here, we modeled infants' looking be...

journal_title：Science advances

authors： Poli F,Serino G,Mars RB,Hunnius S

更新日期：2020-09-23 00:00:00