bluuebunny/crossref_metadata_2025_split huggingface dataset:
Polymer Conjugation of Docosahexaenoic Acid Potentiates Cardioprotective Therapy in Preclinical Models of Myocardial Ischemia/Reperfusion Injury
Authors: Tejedor Sandra , Dolz‐Pérez Irene , Decker Caitlin G. , Hernándiz Amparo , Diez Jose L. , Álvarez Raquel , Castellano Delia , García Nahuel A. , Ontoria‐Oviedo Imelda , Nebot Vicent J. , González‐King Hernán , Igual Begoña , Sepúlveda Pilar , Vicent María J. 
Published: March 2021

AbstractWhile coronary angioplasty represents an effective treatment option following acute myocardial infarction, the reperfusion of the occluded coronary artery can prompt ischemia–reperfusion (I/R) injury that significantly impacts patient outcomes. As ω‐3 polyunsaturated fatty acids (PUFAs) have proven, yet limited cardioprotective abilities, an optimized polymer‐conjugation approach is reported that improves PUFAs bioavailability to enhance cardioprotection and recovery in animal models of I/R‐induced injury. Poly‐l‐glutamic acid (PGA) conjugation improves the solubility and stability of di‐docosahexaenoic acid (diDHA) under physiological conditions and protects rat neonatal ventricular myocytes from I/R injury by reducing apoptosis, attenuating autophagy, inhibiting reactive oxygen species generation, and restoring mitochondrial membrane potential. Enhanced protective abilities are associated with optimized diDHA loading and evidence is provided for the inherent cardioprotective potential of PGA itself. Pretreatment with PGA–diDHA before reperfusion in a small animal I/R model provides for cardioprotection and limits area at risk (AAR). Furthermore, the preliminary findings suggest that PGA–diDHA administration in a swine I/R model may provide cardioprotection, limit edema and decrease AAR. Overall, the evaluation of PGA–diDHA in relevant preclinical models provides evidence for the potential of polymer‐conjugated PUFAs in the mitigation of I/R injury associated with coronary angioplasty.
Stacking‐Engineered Heterostructures in Transition Metal Dichalcogenides
Authors: Wang Shixuan , Cui Xuehao , Jian Chang'e , Cheng Haowei , Niu Mengmeng , Yu Jia , Yan Jiaxu , Huang Wei 
Published: March 2021

AbstractThe layer‐by‐layer assembly of 2D transition metal dichalcogenide monolayer blocks to form a 3D stack, with a precisely chosen sequence/angle, is the newest development for these materials. In this way, one can create “van der Waals heterostructures (HSs),” opening up a new realm of materials engineering and novel devices with designed functionalities. Herein, a detailed systematic review of transition metal dichalcogenide stacking‐engineered heterostructures, from controllable fabrication to typical characterization, and stacking‐correlated physical behaviors is presented. Furthermore, recent advances in stacking design, such as stacking sequence, twist angles, and moiré superlattice heterojunctions, are also comprehensively summarized. Finally, the remaining challenges and possible strategies for using stacking engineering to tune the properties of 2D materials are also outlined.
The Microbiome Meets Nanotechnology: Opportunities and Challenges in Developing New Diagnostic Devices
Authors: Fuentes‐Chust Celia , Parolo Claudio , Rosati Giulio , Rivas Lourdes , Perez‐Toralla Karla , Simon Stéphanie , de Lecuona Itziar , Junot Christophe , Trebicka Jonel , Merkoçi Arben 
Published: March 2021

AbstractMonitoring of the human microbiome is an emerging area of diagnostics for personalized medicine. Here, the potential of different nanomaterials and nanobiosensing technologies is reviewed for the development of novel diagnostic devices for the detection and measurement of microbiome‐related biomarkers. Moreover, the current and future landscape of microbiome‐based diagnostics is defined by exploring the advantages and disadvantages of current nanotechnology‐based approaches, especially in the context of developing point‐of‐care (PoC) devices that would meet the international guidelines known as REASSURED (Real‐time connectivity; Ease of specimen collection; Affordability; Sensitivity; Specificity; User‐friendliness; Rapid & robust operation; Equipment‐free; and Deliverability). Finally, the strategies of the latest international scientific consortia working in this field are analyzed, the current microbiome diagnostics market are reported and the principal ethical, legal, and societal issues related to microbiome R&D and innovation are discussed.
All‐Dielectric Toroidal Metasurfaces for Angular‐Dependent Resonant Polarization Beam Splitting
Authors: Zografopoulos Dimitrios C. , Algorri José Francisco , Fuscaldo Walter , López‐Higuera José Miguel , Vergaz Ricardo , Sánchez‐Pena José Manuel , Karolos Ion‐Anastasios , Beccherelli Romeo , Tsioukas Vassilios E. , Yioultsis Traianos V. , Kriezis Emmanouil E. 
Published: March 2021

AbstractAn all‐dielectric metasurface exhibiting a strong toroidal resonance is theoretically designed and experimentally demonstrated as an angular‐dependent resonant polarization beam‐splitter in the microwave K‐band. The metasurface is fabricated by embedding a square periodic array of high‐permittivity ceramic cuboid resonators in a 3D‐printed substrate of polylactic acid. It is demonstrated that by properly selecting the resonator geometry and by tuning the angle of incidence through mechanical rotation, the metasurface can switch between a polarization beam splitting and bandpass or bandstop operation. Such performance is achieved by exploiting the highly asymmetric Fano spectral profile of the toroidal resonance and the very low (high) dispersion of the associated p‐(s‐) polarized mode resulting from the resonant toroidal dipole mode's field profile, as evidenced by both full‐wave and band structure simulations. Theoretically infinite extinction ratios are achievable for polarization beam splitting operation with very low insertion losses and adjustable bandwidth. The experimental demonstration of such a compact, all‐dielectric metasurface expands the research portfolio of resonant metasurfaces toward not only the investigation of the intriguing physics of toroidal modes but also to the engineering of functional millimeter‐wave components for polarization control, for instance, in the context of 5G wireless communication networks.
One‐Pot Synthesis of CsPbX3 (X = Cl, Br, I)@Zeolite: A Potential Material for Wide‐Color‐Gamut Backlit Displays and Upconversion Emission
Authors: Tong Yao , Wang Qin , Mei Enrou , Liang Xiaojuan , Gao Wei , Xiang Weidong 
Published: March 2021

AbstractAll‐inorganic perovskite (CsPbX3, X = Cl, Br, I) nanocrystals (NCs) with promising optical properties are recognized as a rising star among photoelectric materials, but their inevitable instabilities limit extensive application. Herein, a new one‐step strategy for encapsulating CsPbX3 NCs with porous zeolite via the hot injection method is explored. By altering the mole ratio of PbX2, the emission wavelength of CsPbX3@zeolite is found to be regularly modulated from blue‐emission (CsPbCl2Br@zeolite, 436 nm) to red‐emission (CsPbBrI2@zeolite, 648 nm), thus enabling full spectrum adjustment. Due to the surface passivation of zeolite to CsPbX3 NCs, CsPbX3@zeolite possess an outstanding quantum yield and display excellent thermal/photo/air stability. Subsequently, white light‐emitting diodes based on green‐CsPbBr3@zeolite and red‐CsPbBrI2@zeolite are constructed and applied to the backlit display, achieving a wide color gamut of 134.2% for NTSC 1953 and 99.8% for Rec. 2020. The CsPbX3@zeolite implanted with a polymethyl methacrylate film is used to realize upconversion emission under an 800 nm laser at room temperature. Furthermore, amplified spontaneous radiation based on CsPbBr3@zeolite films is achieved. These results convincingly indicate broad application prospects for CsPbX3@zeolite prepared via this simple method.
MXene‐Based Materials for Electrochemical Sodium‐Ion Storage
Authors: Ma Pin , Fang Daliang , Liu Yilin , Shang Yang , Shi Yumeng , Yang Hui Ying 
Published: March 2021

AbstractAdvanced architecture and rational design of electrode materials for electrochemical sodium‐ion storage are well developed by researchers worldwide. MXene‐based materials are considered as one of the most potential electrode materials for sodium‐ion‐based devices, such as sodium‐ion batteries (SIBs), sodium–sulfur batteries (SSBs), and sodium‐ion capacitors (SICs), because of the excellent physicochemical characteristics of MXenes. Here, in this review, the recent research work and progress, both theoretical and experimental, on MXene‐based materials including pure MXenes and MXene‐based composites in application of SIBs, SSBs, and SICs are comprehensively summarized. The sodium storage mechanisms and the effective methods to enhance the electrochemical performance are also discussed. Finally, the current critical challenges and future research directions on the development of these MXene‐based materials for electrochemical sodium‐ion storage are presented.
Biodegradable Metallic Glass for Stretchable Transient Electronics
Authors: Bae Jae‐Young , Gwak Eun‐Ji , Hwang Gyeong‐Seok , Hwang Hae Won , Lee Dong‐Ju , Lee Jong‐Sung , Joo Young‐Chang , Sun Jeong‐Yun , Jun Sang Ho , Ok Myoung‐Ryul , Kim Ju‐Young , Kang Seung‐Kyun 
Published: March 2021

AbstractBiodegradable electronics are disposable green devices whose constituents decompose into harmless byproducts, leaving no residual waste and minimally invasive medical implants requiring no removal surgery. Stretchable and flexible form factors are essential in biointegrated electronic applications for conformal integration with soft and expandable skins, tissues, and organs. Here a fully biodegradable MgZnCa metallic glass (MG) film is proposed for intrinsically stretchable electrodes with a high yield limit exploiting the advantages of amorphous phases with no crystalline defects. The irregular dissolution behavior of this amorphous alloy regarding electrical conductivity and morphology is investigated in aqueous solutions with different ion species. The MgZnCa MG nanofilm shows high elastic strain (≈2.6% in the nano‐tensile test) and offers enhanced stretchability (≈115% when combined with serpentine geometry). The fatigue resistance in repeatable stretching also improves owing to the wide range of the elastic strain limit. Electronic components including the capacitor, inductor, diode, and transistor using the MgZnCa MG electrode support its integrability to transient electronic devices. The biodegradable triboelectric nanogenerator of MgZnCa MG operates stably over 50 000 cycles and its fatigue resistant applications in mechanical energy harvesting are verified. In vitro cell toxicity and in vivo inflammation tests demonstrate the biocompatibility in biointegrated use.
Wadsley–Roth Crystallographic Shear Structure Niobium‐Based Oxides: Promising Anode Materials for High‐Safety Lithium‐Ion Batteries
Authors: Yang Yang , Zhao Jinbao 
Published: March 2021

AbstractWadsley–Roth crystallographic shear structure niobium‐based oxides are of great interest in fast Li+ storage due to their unique 3D open tunnel structures that offer facile Li+ diffusion paths. Their moderate lithiation potential and reversible redox couples hold the great promise in the development of next‐generation lithium‐ion batteries (LIBs) that are characterized by high power density, long lifespan, and high safety. Despite these outstanding merits, there is still extensive advancement space for further enhancing their electrochemical kinetics. And the industrial feasibility of Wadsley–Roth crystallographic shear structure niobium‐based oxides as anode materials for LIBs requires more systematic research. In this review, recent progress in this field is summarized with the aim of realizing the practical applications of Wadsley–Roth phase anode materials in commercial LIBs. The review focuses on research toward the crystalline structure analyses, electrochemical reaction mechanisms, modification strategies, and full cell performance. In addition to highlighting the current research advances, the outlook and perspective on Wadsley–Roth anode materials is also concisely provided.
Gold Nanocluster‐Modified Titanium Nitride for Ultrafast Photonics Applications
Authors: Zhang Bin , Wang Zhenhong , Zhang Chunxiang , Wu Hanwei , Dang Shanshan , Du Juan , Song Yufeng , Zhang Han , Liu Jun , Nie Guohui 
Published: March 2021

AbstractTransition metal nitride materials exhibit unique optical characteristics and have attracted much interest for various applications, including waveguiding, photovoltaics, and nonlinear optical devices. Herein, titanium nitride (TiN), as a typical representative of biocompatible transition metal nitrides, is prepared and modified with gold nanoclusters (Au NCs) for promoting the carrier mobility, and the corresponding physical characteristics are systematically characterized. The TiN‐based saturable absorber (SA) on microfiber is fabricated and its nonlinear optical absorption property is also studied experimentally. Furthermore, the TiN‐decorated SA is applied in an ultrafast fiber laser at the communication bands. The fiber laser can generate the stable ultrashort pulses with a pulse width of 1.66 ps, a fundamental repetition rate of 7.49 MHz, and a spectral bandwidth of 2.61 nm. More importantly, the chaotic multiple pulses can be obtained, which is reported for the first time in the fiber laser based on the TiN SA on microfiber as far as it is known. The chaotic multiple pulses show many interesting characteristics, including high average pulse energy, varying pulse separations, and pulse intensities. These results have proved that the TiN shows great potential in many fields, such as advanced optical‐intensity modulator, ultrafast pulse dynamics, and optical fiber communications.
Nondegenerate P‐Type In‐Doped SnS2 Monolayer Transistor
Authors: Li Zhaocheng , Shu Weining , Li Qiuqiu , Xu Weiting , Zhang Zhengwei , Li Jia , Wang Yiliu , Liu Yueyang , Yang Juehan , Chen Keqiu , Duan Xidong , Wei Zhongming , Li Bo 
Published: March 2021

AbstractDoping can change the intrinsic properties of 2D materials by tuning their electronic structure. In this work, high‐quality 2D In‐doped SnS2 (In‐SnS2) monolayer is reported through chemical vapor transport method and following mechanical cleavage process. The In content of In‐SnS2 is ≈0.9%, and doping results in the downward shift of the Fermi level compared with the undoped one. Transmission electron microscopy images show that doping is uniform in the In‐SnS2 nanosheets with high quality. The In‐SnS2 monolayer field effect transistors (FETs) show p‐type feature which is different from the n‐type feature of undoped SnS2. The average hole produced by one In atom is estimated as 0.37 from FETs measurement. Density functional theory calculations show that the decreasing of hole concentration results from the hole killing mechanism induced by S vacancy. The results suggest that changing the polarity of 2D semiconductor by doping is successful, and In‐SnS2 monolayer has great potential in the applications of electronics and optoelectronics.
Recent Advances in Two‐Dimensional Heterostructures: From Band Alignment Engineering to Advanced Optoelectronic Applications
Authors: Sun Xingxia , Zhu Chenguang , Zhu Xiaoli , Yi Jiali , Liu Yong , Li Dong , Pan Anlian 
Published: March 2021

AbstractDynamically engineering the band alignment between materials, especially 2D semiconductors, is critically important for the design of novel devices with superior functions. Here, a review of band alignment engineering in 2D heterostructures and the derived device applications, mainly outlining their potential as photodetectors, photovoltaics, and light‐emitting devices, is provided. Various approaches are summarized, through exploiting the advantages of each component and different device structure, to further improve the performances of the optoelectronic devices. The authors also provide their perspectives on future developments of photoelectric chips based on the newly designed optoelectronic devices.
Scalable Microfabrication of Folded Parylene‐Based Conductors for Stretchable Electronics
Authors: Hartmann Florian , Jakešová Marie , Mao Guoyong , Nikić Marta , Kaltenbrunner Martin , Đerek Vedran , Głowacki Eric Daniel 
Published: March 2021

AbstractElectronics implemented on biocompatible ultrathin substrates like polyethylene terephthalate, polyimide, or parylene enabled a wide range of conformable, lightweight smart wearables and implantables. However, applications in such dynamic environments require robust devices that adjust and stretch while maintaining their functionality. Universal approaches that unite scalable, low‐cost fabrication with high performance and versatile, space‐efficient design are sparse. Here, stretchable architectures of parylene enabled by Origami‐inspired folds at the micrometer scale are demonstrated. Parylene is directly deposited onto anisotropically etched silicon molds to greatly reduce bending stress, allowing folds with bending radii of a few micrometers. 50‐nm‐thick gold conductors fabricated on the folded parylene facilitate electronics with a stretchability of up to 55% tensile strain. The conductors sustain a resistance below 20 Ω during reversible stretching of more than 10 000 cycles, enabling long‐term operation in practical settings. This method presents a versatile tool for the microfabrication of stretchable devices with tunable properties.
High‐Performance Stretchable Strain Sensor Based on Ag Nanoparticles Sandwiched between Two 3D‐Printed Polyurethane Fibrous Textiles
Authors: Han Xiaolong , Xiao Wei , Wen Shuai , Lin Jinkun , He Aihua , Jiang Qingsong , Nie Huarong 
Published: March 2021

AbstractDeveloping stretchable strain sensors with high stretchability as well as sensitivity via a scalable technique is still a challenge that remains to be addressed. Herein, high‐performance stretchable strain sensors based on Ag nanoparticles (NPs) sandwiched between two thermoplastic polyurethane (TPU) fibrous textiles are fabricated by combining 3D‐printed TPU elastomer and solution‐coated Ag NP pulp, in which a conductive network is formed at a low loading of 4.3 wt% Ag NPs. The printed TPU fibers in each textile are arranged in parallel, while perpendicular to each other between the upper and lower textiles, forming an oblique lattice structure with their diagonal being the same direction as the external force. Under stretching, the deformed TPU fibers in the upper and lower textiles squeezed Ag NPs to undergo shearing motion, such that the disconnected electrical circuit can be compensated by some Ag NPs to retain the electrical pathway. Consequently, the printed TPU/Ag strain sensors showed high sensitivity (gauge factor of 38220 at a strain of 120–138%), wide working strain range (0–138%), and long‐term durability (>2500 cycles at 50% strain). Their promise as flexible electronic components is demonstrated in wearable motion detection systems for monitoring human motions and recognizing facial expressions.
Ferroelectric Synaptic Transistor Network for Associative Memory
Authors: Yan Mengge , Zhu Qiuxiang , Wang Siqi , Ren Yiming , Feng Guangdi , Liu Lan , Peng Hui , He Yuhui , Wang Jianlu , Zhou Peng , Meng Xiangjian , Tang Xiaodong , Chu Junhao , Dkhil Brahim , Tian Bobo , Duan Chungang 
Published: March 2021

AbstractBrain‐inspired associative memory is meaningful for pattern recognitions and image/speech processing. Here, a ferroelectric synaptic transistor network is proposed that is capable of associative learning and one‐step recalling of a whole set of data from only partial information. The competition between an external field and the internal depolarization field governs the ferroelectric creep of domain walls and offers each single ferroelectric synapse a full and subfemtojoule‐energy‐cost Hebbian synaptic plasticity, including short‐term memory (STM) to long‐term memory (LTM) transition, and remarkably both spike‐timing‐dependent plasticity (STDP) and spike‐rate‐dependent plasticity (SRDP). Assisted by the third terminal to control the ferroelectric domain dynamics, self‐adaptive coupling between neurons is realized by updating synaptic weight concurrently. Pavlov's dog experiment and multiassociative memories are demonstrated in this ferroelectric synaptic transistor network. Such ferroelectric synaptic transistor network is available for building multilayer neural networks and provides new avenues for associative‐memory information processing.
A Passionfruit‐Like Carbon‐Confined Cu2ZnSnS4 Anode for Ultralong‐Life Sodium Storage
Authors: Sun Bing , Zhang Qin , Zhang Chengzhi , Xu Wenli , Wang Jiapei , Yuan Guanming , Lv Wei , Li Xuanke , Yang Nianjun 
Published: March 2021

AbstractThe sodium‐ion battery (SIB) is one of the new generation of electrochemical energy storage devices, although its life‐time needs to be improved. To assemble an SIB with an ultralong life‐time, passionfruit‐like Cu2ZnSnS4 nanoparticles confined with nitrogen‐doped carbon (CZTS@C) are synthesized. As an alternative anode for an SIB, the CZTS@C anode exhibits a reversible capacity of 461 mA h g−1 at a current density of 50 mA g−1 after 140 charge/discharge cycles and excellent cycling stability (e.g., a capacity of 146 mA h g−1 at 4 A g−1 even after 1000 charge/discharge cycles). Such high performance originates from multiple electrons involved in the electrochemical reactions of the CZTS@C anode, as verified by in situ X‐ray diffraction measurements. As a conductive maskant, the carbon shell enhances the electric conductivity of the CZTS@C anode and further behaves as a blocked layer to maintain the structural integrity of this anode, namely to avoid the loss of active components. Several heterostructures that promote the reaction kinetics of the Na+ storage are formed in the subsequent charging process, as proved by ex situ transmission electron microscopy. The remarkable performance based on this low‐cost CZTS anode may pave the way to develop commercial SIBs.
Highly Efficient Oxygen Reduction Reaction Activity of N‐Doped Carbon–Cobalt Boride Heterointerfaces
Authors: Jose Vishal , Nsanzimana Jean Marie Vianney , Hu Huimin , Choi Jinho , Wang Xin , Lee Jong‐Min 
Published: March 2021

AbstractCompositional and structural engineering of metal‐metalloid materials can boost their electrocatalytic performance. Herein, a highly efficient and stable electrocatalytic system for the oxygen reduction reaction is obtained by creating heterointerfaces between N‐doped carbon and cobalt boride nanosheets. Furthermore, a detailed investigation on the effect of annealing temperature as well as the amount of carbon and nitrogen sources is conducted to tune their performance. The best electrocatalyst among the prepared materials is found to have an onset potential of 1.05 V and half‐wave potential of 0.94 V, which are 40 and 72 mV positive in comparison to commercial Pt/C, respectively. Finally, a zinc–air battery is also assembled using the catalyst.