bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Review of Femtosecond‐Laser‐Induced Underwater Superoleophobic Surfaces
Authors: Yong Jiale , Chen Feng , Yang Qing , Jiang Zhuangde , Hou Xun 
Published: March 2018

AbstractUnderwater superoleophobic surfaces have attracted increasing interest because of their remarkable antioil ability and wide range of promising applications. In the meantime, femtosecond laser microfabrication becomes a rising star in the field of micro/nanomanufacturing based on the advantages of negligible heat‐affected zone, no‐contact process, precise ablation threshold, and high resolution. The collision of femtosecond laser microfabrication and achieving underwater superoleophobicity finally produces some colorful fireworks. In this review, the recent progress of femtosecond‐laser‐induced underwater superoleophobic surfaces, mainly including materials, fabrication, properties, multifunctions, and applications, is summarized. The related background is first introduced to show the principle for creating an underwater superoleophobic surface and the unique features of femtosecond laser. Based on the principle of “from in‐air superhydrophilicity to underwater superoleophobicity,” underwater superoleophobicity is achieved on different kinds of materials surfaces by simple femtosecond laser ablation. Furthermore, the femtosecond‐laser‐induced underwater superoleophobic surfaces can also be endowed with some additional properties such as controllable oil adhesion, underwater anisotropic oil wettability, good transparency, and durability, leading to the resultant surfaces that have various practical applications. The development of underwater superoleophobicity is still in its “toddler stage,” so the existing challenges and future prospects of this growing field are discussed finally.
Alkali Metal Chlorides Based Hydrogel as Eco‐Friendly Neutral Electrolyte for Bendable Solid‐State Capacitor
Authors: Li Hu , Wang Xinxin , Jiang Wen , Fu Haoyu , Liang Xiaoqiang , Zhang Ke , Li Zhe , Zhao Chaochao , Feng Hongqing , Nie Jia , Liu Ruping , Zhou Gang , Fan Yubo , Li Zhou 
Published: March 2018

AbstractHydration greatly affects ionic state in an aqueous environment and thus influences their electrochemical performance. In this study, three alkali metal chlorides dissolved in neutral polyvinyl alcohol hydrogel are fully investigated for bendable solid‐state TiO2 nanotube capacitor (BSTC). Radius difference between bare ions and hydrated ions results in their obviously different electrochemical performance. Hydration makes lithium‐ion (Li+) possess the largest hydrated radius and the lowest mobility, which endows it the best capacitance performance in BSTC by electrochemical characterization. BSTC with hydrated Li+ achieves high capacitance retention rates of 87% at 1 V for 3000 cycles and of 70% at 2 V for 2500 cycles. Additionally, it has no significant capacitance variation when stored for one month or bended to 120°.
Direct or Indirect Bandgap in Hybrid Lead Halide Perovskites?
Authors: Sarritzu Valerio , Sestu Nicola , Marongiu Daniela , Chang Xueqing , Wang Qingqian , Masi Sofia , Colella Silvia , Rizzo Aurora , Gocalinska Agnieszka , Pelucchi Emanuele , Mercuri Maria Laura , Quochi Francesco , Saba Michele , Mura Andrea , Bongiovanni Giovanni 
Published: March 2018

AbstractHybrid lead halide perovskites are unique solution‐processed semiconductors with very large optical absorption coefficients in the visible spectrum, large diffusion length of photoexcited charge carriers, and long excited state lifetimes, properties that have been exploited for the realization of solar cells and LEDs. However, one of the most fundamental properties of hybrid perovskites, whether the optical bandgap is direct or indirect, is actively debated. While perovskites have been considered direct bandgap semiconductors in most published literature, recent studies have proposed that the Rashba spin–orbit coupling gives rise to an indirect gap, few tens of meV lower in energy than the direct one. Here, the radiative recombination rates in hybrid perovskites are measured as a function of temperature, extracting their values from the instantaneous intensity of photoluminescence under pulsed excitation. Experimental data show that radiative recombination becomes faster with decreasing temperature, as in all direct bandgap materials and contrary to what expected for 3D Rashba semiconductors. The technique has been applied to CH3NH3PbI3 and CH3NH3PbBr3, both in polycrystalline and single crystal samples, as well as to GaAs for validation purposes.
Designing the Iridescences of Biopolymers by Assembly of Photonic Crystal Superlattices
Authors: Wang Yu , Li Meng , Colusso Elena , Li Wenyi , Omenetto Fiorenzo G. 
Published: March 2018

AbstractStructural color in naturally occurring systems is generally constituted by nanoscale lattices of biopolymers that generate beautiful iridescences through their regular structures, often interspersed with defects or period mismatch. Taking inspiration from both formats and materials found in Nature, a series of large‐scale, highly reflective biopolymer‐based photonic crystal superlattices constituted by stacking layers of 3D nanoscale lattices with different periodicity is presented. These silk photonic crystal superlattices (SPCSs) are fully composed of naturally derived structural proteins (silk fibroin) and exhibit brilliant structural color while being mechanically flexible. Multi‐stopbands over broad wavelength ranges or single‐stopbands with narrowband spectral responses can be readily realized and precisely controlled by manipulating the hierarchy of the lattice stacks or the repetition periods of the assembled colloidal monolayers. The unique ability to vary the silk protein conformation allows to vary the lattice and controllably “design” the iridescences of the SPCSs with water vapor adding versatility to this biopolymer‐based photonic structure.
Progress in Aqueous Rechargeable Sodium‐Ion Batteries
Authors: Bin Duan , Wang Fei , Tamirat Andebet Gedamu , Suo Liumin , Wang Yonggang , Wang Chunsheng , Xia Yongyao 
Published: March 2018

AbstractSodium (Na) is one of the more abundant elements on earth and exhibits similar chemical properties as lithium (Li), indicating that Na could be applied to a similar battery system. Like aqueous Li‐ion batteries, aqueous sodium‐ion batteries (ASIBs) are also demonstrated to be one of the most promising stationary power sources for sustainable energies such as wind and solar power. Compared to traditional nonaqueous batteries, ASIBs may solve the safety problems associated with the highly toxic and flammable organic electrolyte in the traditional lithium‐ion and sodium‐ion batteries. During the past decades, many efforts are made to improve the performance of the ASIBs. The present review focuses on the latest advances in the exploration and development of ASIB systems and related components, including cathodes, anodes, and electrolytes. Previously reported studies are briefly summarized, together with the presentation of new findings based on the electrochemical performance, cycling stability, and morphology approaches. In addition, the main opportunities, achievements, and challenges in this field are briefly commented and discussed.
An Ultralong Lifespan and Low‐Temperature Workable Sodium‐Ion Full Battery for Stationary Energy Storage
Authors: Wang Ying‐Ying , Hou Bao‐Hua , Guo Jin‐Zhi , Ning Qiu‐Li , Pang Wei‐Lin , Wang Jiawei , Lü Chang‐Li , Wu Xing‐Long 
Published: March 2018

AbstractPresently, commercialization of sodium‐ion batteries (SIBs) is still hindered by the relatively poor energy‐storage performance. In addition, low‐temperature (low‐T) Na storage is another principal concern for the wide application of SIBs. Unfortunately, the Na‐transfer kinetics is extremely sluggish at low‐T, as a result, there are few reports on low‐T SIBs. Here, an advanced low‐T sodium‐ion full battery (SIFB) assembled by an anode of 3D Se/graphene composite and a high‐voltage cathode (Na3V2(PO4)2O2F) is developed, exhibiting ultralong lifespan (over even 15 000 cycles, the capacity retention is still up to 86.3% at 1 A g−1), outstanding low‐T energy storage performance (e.g., all values of capacity retention are >75% after 1000 cycles at temperatures from 25 to −25 °C at 0.4 A g−1), and high‐energy/power properties. Such ultralong lifespan signifies that the developed sodium‐ion full battery can be used for longer than 60 years, if batteries charge/discharge once a day and 80% capacity retention is the standard of battery life. As a result, the present study not only promotes the practicability and commercialization of SIBs but also points out the new developing directions of next‐generation energy storage for wider range applications.
Dense Graphene Monolith for High Volumetric Energy Density Li–S Batteries
Authors: Li Huan , Tao Ying , Zhang Chen , Liu Donghai , Luo Jiayan , Fan Weichao , Xu Yue , Li Youzhi , You Conghui , Pan Zheng‐Ze , Ye Mingchun , Chen Zhengyu , Dong Zhang , Wang Da‐Wei , Kang Feiyu , Lu Jun , Yang Quan‐Hong 
Published: March 2018

AbstractDespite the outstanding gravimetric performance of lithium–sulfur (Li–S) batteries, their practical volumetric energy density is normally lower than that of lithium‐ion batteries, mainly due to the low density of nanostructured sulfur as well as the porous carbon hosts. Here, a novel approach is developed to fabricate high‐density graphene bulk materials with “ink‐bottle‐like” mesopores by phosphoric acid (H3PO4) activation. These pores can effectively confine the polysulfides due to their unique structure with a wide body and narrow neck, which shows only a 0.05% capacity fade per cycle for 500 cycles (75% capacity retention) for accommodating polysulfides. With a density of 1.16 g cm−3, a hybrid cathode containing 54 wt% sulfur delivers a high volumetric capacity of 653 mA h cm−3. As a result, a device‐level volumetric energy density as high as 408 W h L−1 is achieved with a cathode thickness of 100 µm. This is a periodic yet practical advance to improve the volumetric performance of Li–S batteries from a device perspective. This work suggests a design principle for the real use Li–S batteries although there is a long way ahead to bridge the gap between Li–S batteries and Li–ion batteries in volumetric performance.
A Robust Approach for Efficient Sodium Storage of GeS2 Hybrid Anode by Electrochemically Driven Amorphization
Authors: Kim Joo‐Hyung , Yun Jong Hyuk , Kim Do Kyung 
Published: March 2018

AbstractSodium ion batteries (NIBs) have become attractive promising alternatives to lithium ion batteries in a broad field of future energy storage applications. The development of high‐performance anode materials has become an essential factor and a great challenge toward satisfying the requirements for NIBs, advancement. This work is the first report on GeS2 nanocomposites uniformly distributed on reduced graphene oxide (rGO) as promising anode materials for NIBs prepared via a facile hydrothermal synthesis and a unique carbo‐thermal annealing. The results show that the GeS2/rGO hybrid anode yields a high reversible specific capacity of 805 mA h g−1 beyond the theoretical capacity, an excellent rate capability of 616 mA h g−1 at 5 A g−1, and a cycle retention of 89.4% after 100 cycles. A combined ex situ characterization study reveals that the electrochemically driven amorphization plays a key role in achieving efficient sodium storage by accommodating excess sodium ions in the electrode materials. Understanding the sequential conversion‐alloying reaction mechanism for GeS2/rGO hybrid anodes provides a new approach for developing high‐performance energy storage applications.
Suppressing Li Dendrite Formation in Li2S‐P2S5 Solid Electrolyte by LiI Incorporation
Authors: Han Fudong , Yue Jie , Zhu Xiangyang , Wang Chunsheng 
Published: March 2018

AbstractSolid electrolytes have been considered as a promising approach for Li dendrite prevention because of their high mechanical strength and high Li transference number. However, recent reports indicate that Li dendrites also form in Li2S‐P2S5 based sulfide electrolytes at current densities much lower than that in the conventional liquid electrolytes. The methods of suppressing dendrite formation in sulfide electrolytes have rarely been reported because the mechanism for the “unexpected” dendrite formation is unclear, limiting the successful utilization of high‐energy Li anode with these electrolytes. Herein, the authors demonstrate that the Li dendrite formation in Li2S‐P2S5 glass can be effectively suppressed by tuning the composition of the solid electrolyte interphase (SEI) at the Li/electrolyte interface through incorporating LiI into the electrolyte. This approach introduces high ionic conductivity but electronic insulation of LiI in the SEI, and more importantly, improves the mobility of Li atoms, promoting the Li depositon at the interface and thus suppresses dendrite growth. It is shown that the critical current density is improved significantly after incorporating LiI into Li2S‐P2S5 glass, reaching 3.90 mA cm−2 at 100 °C after adding 30 mol% LiI. Stable cycling of the Li‐Li cells for 200 h is also achieved at 1.50 mA cm−2 at 100 °C.
Light‐Induced Cyclization of A [c2]Daisy‐Chain Rotaxane to Form a Shrinkable Double‐Lasso Macrocycle
Authors: Rao Si‐Jia , Ye Xu‐Hao , Zhang Qi , Gao Chuan , Wang Wen‐Zhi , Qu Da‐Hui 
Published: March 2018

AbstractA pH‐responsive double‐lasso macrocycle has been successfully obtained directly from a [c2]daisy chain rotaxane via a photodimerization reaction of two terminal coumarin ligands. The size of the double‐lasso macrocycle could be tuned by acid/base stimuli with the reversible muscle‐like extension/contraction of the [c2]daisy chain unit.
Surface Plasmon Mediated Controllable Spin‐Resolved Transmission in Meta‐Hole Structures
Authors: Xiong Xiaoyu , Zhang Xueqian , Xu Quan , Yang Quanlong , Wang Qiu , Xu Yuehong , Zhang Huifang , Li Yanfeng , Han Jiaguang , Zhang Weili 
Published: March 2018

AbstractChiral responses are optical responses involving circular polarizations. Controlling the chiral response in a flexible way is very important in optical manipulations. Chiral metamaterials have thus drawn enormous interest due to their flexible designing feature. However, most of the previous studies are mainly realized by designing the structure of the individual meta‐atom. Meanwhile, to enhance the response, complex design and fabrication processes are typically required. Here, by introducing spin‐dependent propagating surface plasmons and spin‐selective interference, giant spin‐resolved transmission is achieved in a simple meta‐hole structure. In this interaction process, spin‐orbital angular momentum conversion plays an essential role. By controlling the phase difference between the interference components, controllable spin‐resolved transmission is achieved. Furthermore, such method can also be applied to realize spin‐resolved excitation of surface plasmons. The proposed controlling strategy offers a versatile platform for a variety of promising applications, such as polarization control, asymmetric transmission, surface plasmon excitation, and on‐chip chiral manipulation.
Resolution Enhancement of Plasmonic Sensors by Metal‐Insulator‐Metal Structures
Authors: Refki Siham , Hayashi Shinji , Ishitobi Hidekazu , Nesterenko Dmitry V. , Rahmouni Anouar , Inouye Yasushi , Sekkat Zouheir 
Published: March 2018

AbstractOptical sensors based on surface plasmons have attracted much attention over the past decades owing to the wealth of applications in bio‐ and chemical and gas sensing. In surface plasmon resonance sensors, a single metal layer is commonly used, but its resolution is limited because of broad resonances. In this context, we have developed a sensor chip based on a stack of metals and a dielectric, e.g. a metal‐insulator‐metal structure, consisting of a thick insulator layer sandwiched by metal layers, that exhibits a sharp resonance due to the excitation of surface plasmon polaritons hybrid modes. We have performed both experiments and theoretical simulations to estimate the enhancement of the sensitivity of such a structure. By changing the refractive index of an aqueous solution of glucose on top of the sensor chip, we found that the use of a metal‐insulator‐metal structure improves the figure of merit of the sensor 7.5 times compared to that of a conventional surface plasmon resonance sensor chip.
Activity‐Based Probes Developed by Applying a Sequential Dehydroalanine Formation Strategy to Expressed Proteins Reveal a Potential α‐Globin‐Modulating Deubiquitinase
Authors: Meledin Roman , Mali Sachitanand M. , Kleifeld Oded , Brik Ashraf 
Published: March 2018

AbstractWe report a general and novel semisynthetic strategy for the preparation of ubiquitinated protein‐activity‐based probes on the basis of sequential dehydroalanine formation on expressed proteins. We applied this approach to construct a physiologically and therapeutically relevant ubiquitinated α‐globin probe, which was used for the enrichment and proteomic identification of α‐globin‐modulating deubiquitinases. We found USP15 as a potential deubiquitinase for the modulation of α‐globin, an excess of which aggravates β‐thalassemia symptoms. This development opens new opportunities for activity‐based‐probe design to shed light on the important aspects underlying ubiquitination and deubiquitination in health and disease.
Charge Neutralization Drives the Shape Reconfiguration of DNA Nanotubes
Authors: Liu Pi , Zhao Yan , Liu Xiaoguo , Sun Jixue , Xu Dede , Li Yang , Li Qian , Wang Lihua , Yang Sichun , Fan Chunhai , Lin Jianping 
Published: March 2018

AbstractReconfiguration of membrane protein channels for gated transport is highly regulated under physiological conditions. However, a mechanistic understanding of such channels remains challenging owing to the difficulty in probing subtle gating‐associated structural changes. Herein, we show that charge neutralization can drive the shape reconfiguration of a biomimetic 6‐helix bundle DNA nanotube (6HB). Specifically, 6HB adopts a compact state when its charge is neutralized by Mg2+; whereas Na+ switches it to the expanded state, as revealed by MD simulations, small‐angle X‐ray scattering (SAXS), and FRET characterization. Furthermore, partial neutralization of the DNA backbone charges by chemical modification renders 6HB compact and insensitive to ions, suggesting an interplay between electrostatic and hydrophobic forces in the channels. This system provides a platform for understanding the structure–function relationship of biological channels and designing rules for the shape control of DNA nanostructures in biomedical applications.
Proteases and nucleases involved in the biphasic digestion process of the brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae)
Authors: Lomate Purushottam R. , Bonning Bryony C. 
Published: March 2018

AbstractManagement of the brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae), an invasive, agricultural pest in the United States, has presented significant challenges. This polyphagous insect uses both extra‐oral and gut‐based digestion thwarting protein‐ or nucleotide‐based control strategies. The objective of this study was to biochemically characterize the digestive enzymes (proteases and nucleases) from the saliva, salivary gland and the gut of H. halys. Enzyme profiles for the two tissues and saliva radically differ: The pH optimum for proteases in the gut was six, with cysteine proteases predominant. In contrast, the alkaline pH optima for protease activity in the salivary gland (8–10) and saliva (7) reflected abundant serine protease and cathepsin activities. RNase enzymes were most abundant in saliva, while dsRNase and DNase activities were higher in the salivary gland and saliva compared to those in the gut. These very different enzyme profiles highlight the biphasic digestive system used by this invasive species for efficient processing of plant nutrients. Knowledge of H. halys digestive physiology will allow for counteractive measures targeting digestive enzymes or for appropriate protection of protein‐ or nucleotide‐based management options targeting this pest.
Retracted: Novel spiro‐thiazolidin‐4‐one and thioether derivatives of benzylidene flavanones: New leads in cancer and microbial chemotherapy
Authors: Mukhtar Sayeed , Alsharif Meshari A. , Alahmdi Mohammed I. , Parveen Humaira , Khan Asad U. 
Published: March 2018

RetractionThe above article from Archiv der Pharmazie, published online on 12 March 2018 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the authors, the journal Editor‐in‐Chief, Prof. Holger Stark, and Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim. The retraction has been agreed due to errors in the spectroscopic data of the investigated new compounds.Reference to RetractionS. Mukhtar, M. A. Alsharif, M. I. Alahmdi, H. Parveen, A. U. Khan, Arch. Pharm. Chem. Life Sci. 2018;1–12. DOI: 10.1002/ardp.201700397
Ruthenium Tris‐bipyridine Single‐Molecule Junctions with Multiple Joint Configurations
Authors: Komoto Yuuki , Yamazaki Yasuomi , Tamaki Yusuke , Iwane Madoka , Nishino Tomoaki , Ishitani Osamu , Kiguchi Manabu , Fujii Shintaro 
Published: March 2018

AbstractSingle‐molecule junctions are of particular interest in molecular electronics. To realize molecular electronic devices, it is crucial that functional single‐molecule junctions are connected to each other by using joint units on the atomic scale. However, good joint units have not been reported because controlling the charge transport directions through the junctions is not trivial. Here, we report a joint unit that controls and changes the charge transport directions through the junctions, by using a ruthenium–tris‐bipyridine (RuBpy) complex. The RuBpy single‐molecule junction was fabricated with scanning tunnelling microscopy‐based break junction techniques. The RuBpy single‐molecule junction showed two distinct high and low conductance states. The two states were characterized by the conductance measurement, the correlation analysis, and the comparative experiment of bipyridine (Bpy), which is the ligand unit of RuBpy. We demonstrate that the Ru complex has multiple charge transport paths, where the charge is carried vertically and horizontally through the complex depending on the path.
Bromotryptophans and their incorporation in cyclic and bicyclic privileged peptides
Authors: García‐Pindado Júlia , Willemse Tom , Goss Rebecca , Maes Bert U. W. , Giralt Ernest , Ballet Steven , Teixidó Meritxell 
Published: March 2018

AbstractWhile revisiting biologically active natural peptides, the importance of the tryptophan residue became clear. In this article, the incorporation of this amino acid, brominated at different positions of the indole ring, into cyclic peptides was successfully achieved. These products demonstrated improved properties in terms of passive diffusion, permeability across membranes, biostability in human serum and cytotoxicity. Moreover, these brominated tryptophans at positions 5, 6, or 7 proved to be compatible as building blocks to prepare bicyclic stapled peptides by performing on‐resin Suzuki‐Miyaura cross‐coupling reactions.