bluuebunny/crossref_metadata_2025_split huggingface dataset:
A‐Site Management for Highly Crystalline Perovskites
Authors: Si Haonan , Zhang Zheng , Liao Qingliang , Zhang Guangjie , Ou Yang , Zhang Suicai , Wu Hualin , Wu Jing , Kang Zhuo , Zhang Yue 
Published: November 2019

AbstractAn in‐depth understanding and effective suppression of nonradiative recombination pathways in perovskites are crucial to their crystallization process, in which supersaturation discrepancies at different time scales between CH3NH3I (MAI, methylammonium iodide) and PbI2 remain a key issue. Here, an A‐site management strategy via the introduction of an A‐site placeholder cation, NH4+, to offset the deficient MA+ precipitation by occupying the cavity of Pb–I framework, is proposed. The temporarily remaining NH4+ is substituted by subsequently precipitated MA+. The temperature‐dependent crystallization process with the generation and consumption of a transient phase is sufficiently demonstrated by the dynamic changes in crystal structure characteristic peaks through in situ grazing‐incidence X‐ray diffraction and the surface potential difference evolution through temperature‐dependent Kelvin probe force microscopy. A highly crystalline perovskite is consequently acquired, indicated by the enlarged grain size, lowered nonradiative defect density, prolonged carrier lifetime, and fluorescence lifetime imaging. Most importantly, it is identified that the A‐site IMA defect is responsible for such crystal quality optimization based on theoretical calculations, transient absorption, and deep‐level transient spectroscopy. Furthermore, the universality of the proposed A‐site management strategy is demonstrated with other mixed‐cation perovskite systems, indicating that this methodology successfully provides guidance for synthesis route design of highly crystalline perovskites.
A Novel Ultrastable and High‐Performance Electrode Material for Asymmetric Supercapacitors Based on ZIF‐9@Polyaniline
Authors: Guo Hao , Xu Mengni , Yue Liguo , Li Qi , Wu Ning , Wang Mingyue , Wang Xiaoqiong , Yang Wu 
Published: November 2019

AbstractNanoflower‐like composites have greater contact area and more redox reactive centers, which have great potential in the application of electrode materials for supercapacitors. A nonconductive polymer binder is usually used in preparation of electrodes, which causes an increase in interface resistance and a decrease in material active sites. Here, polyaniline (PANI) and ZIF‐9 are directly grown on the Ni foam (ZIF‐9@PANI/NF) by a simple solvothermal method without a nonconductive polymer binder. A nanoflower array is grown on the NF, which can be directly used as electrode material of supercapacitor. The attachment of PANI facilitates electron transfer and increases the conductivity of the material. At a current density of 1 A g−1, the specific capacitance is up to 7 times that of the ZIF‐9. The assembled asymmetric supercapacitor has a high energy density of 52 Wh kg−1at a power density of 800 W kg−1, remaining 90.1% after 50 000 cycles. These great electrochemical properties show the material has good market development prospects for energy storage device.
Gain‐Assisted Active Spoof Plasmonic Fano Resonance for High‐Resolution Sensing of Glucose Aqueous Solutions
Authors: Zhou Yong Jin , Li Qiao Yu , Zhao Hong Zhou , Cui Tie Jun 
Published: November 2019

AbstractFano resonance has received much attention in recent years due to its promising applications in surface enhanced phenomena, sensing, and nonlinear optics. However, it is challenging to achieve both high quality (Q) factor and high intensity using the Fano resonance. Different from active switching/tuning of plasmonic Fano resonances, gain‐assisted active spoof plasmonic Fano resonance is for the first time proposed to enhance both the Q factor and resonance intensity significantly, in which a subwavelength amplifier chip is incorporated into a passive plasmonic structure composed of two stacked corrugated metal rings. Experimental results show that the Q factor of the Fano resonance is increased from 49 to 2802, and the resonance intensity is improved from 19.89 to 37.42 dB. The high performance of the active plasmonic structure makes the limit of detection reach to 10 mg dL−1, and thus the minute change of glucose aqueous solutions has been successfully detected.
Self‐Healing Hydrogels and Cryogels from Biodegradable Polyurethane Nanoparticle Crosslinked Chitosan
Authors: Lin Tzu‐Wei , Hsu Shan‐hui 
Published: November 2019

AbstractHydrogels are widely used in tissue engineering owing to their high water retention and soft characteristics. It remains a challenge to develop hydrogels with tunable degradation rates, proper environmental responsiveness, and injectability. In this study, biodegradable difunctional polyurethane (DFPU) nanoparticle dispersions are synthesized from an eco‐friendly waterborne process involving the use of glyoxal. Such DFPU is used to crosslink chitosan (CS). Schiff base linkages between DFPU and CS successfully produce self‐healing hydrogels at room temperature. Moreover, cryogels are generated after being frozen at −20 °C. These gels are found to be sensitive to low pH and amine‐containing molecules owing to the property of Schiff bases. Furthermore, the degradation rates can be adjusted by the type of the component oligodiols in DFPU. Rheological evaluation verifies the excellent self‐healing properties (≈100% recovery after damage). Both the self‐healing gels and cryogels are injectable (through 26‐gauge and 18‐gauge needles, respectively) and biocompatible. Rat implantation at 14 d shows the low immune responses of cryogels. The functionalized biodegradable polyurethane nanoparticles represent a new platform of crosslinkers for biomacromolecules such as chitosan through the dynamic Schiff reaction that may give rise to a wide variety of self‐healing gels and cryogels for biomedical applications.
3D‐Printed Sugar Scaffold for High‐Precision and Highly Sensitive Active and Passive Wearable Sensors
Authors: Ho Dong Hae , Hong Panuk , Han Joong Tark , Kim Sang‐Youn , Kwon S. Joon , Cho Jeong Ho 
Published: November 2019

AbstractIn this study, a pairing of a previously unidentified 3D printing technique and soft materials is introduced in order to achieve not only high‐resolution printed features and flexibility of the 3D‐printed materials, but also its light‐weight and electrical conductivity. Using the developed technique and materials, high‐precision and highly sensitive patient‐specific wearable active or passive devices are fabricated for personalized health monitoring. The fabricated biosensors show low density and substantial flexibility because of 3D microcellular network‐type interconnected conductive materials that are readily printed using an inkjet head. Using high‐resolution 3D scanned body‐shape data, on‐demand personalized wearable sensors made of the 3D‐printed soft and conductive materials are fabricated. These sensors successfully detect both actively changing body strain signals and passively changing signals such as electromyography (EMG), electrodermal activity (EDA), and electroencephalogram EEG. The accurately tailored subject‐specific shape of the developed sensors exhibits higher sensitivity and faster real‐time sensing performances in the monitoring of rapidly changing human body signals. The newly developed 3D printing technique and materials can be widely applied to various types of wearable, flexible, and light‐weight biosensors for use in a variety of inexpensive on‐demand and personalized point‐of‐care diagnostics.
How to Report Record Open‐Circuit Voltages in Lead‐Halide Perovskite Solar Cells
Authors: Krückemeier Lisa , Rau Uwe , Stolterfoht Martin , Kirchartz Thomas 
Published: November 2019

AbstractOpen‐circuit voltages of lead‐halide perovskite solar cells are improving rapidly and are approaching the thermodynamic limit. Since many different perovskite compositions with different bandgap energies are actively being investigated, it is not straightforward to compare the open‐circuit voltages between these devices as long as a consistent method of referencing is missing. For the purpose of comparing open‐circuit voltages and identifying outstanding values, it is imperative to use a unique, generally accepted way of calculating the thermodynamic limit, which is currently not the case. Here a meta‐analysis of methods to determine the bandgap and a radiative limit for open‐circuit voltage is presented. The differences between the methods are analyzed and an easily applicable approach based on the solar cell quantum efficiency as a general reference is proposed.
EML1‐associated brain overgrowth syndrome with ribbon‐like heterotopia
Authors: Oegema Renske , McGillivray George , Leventer Richard , Le Moing Anne‐Gaëlle , Bahi‐Buisson Nadia , Barnicoat Angela , Mandelstam Simone , Francis David , Francis Fiona , Mancini Grazia M. S. , Savelberg Sanne , van Haaften Gijs , Mankad Kshitij , Lequin Maarten H. 
Published: November 2019

AbstractEML1 encodes the protein Echinoderm microtubule‐associated protein‐like 1 or EMAP‐1 that binds to the microtubule complex. Mutations in this gene resulting in complex brain malformations have only recently been published with limited clinical descriptions. We provide further clinical and imaging details on three previously published families, and describe two novel unrelated individuals with a homozygous partial EML1 deletion and a homozygous missense variant c.760G>A, p.(Val254Met), respectively. From review of the clinical and imaging data of eight individuals from five families with biallelic EML1 variants, a very consistent imaging phenotype emerges. The clinical syndrome is characterized by mainly neurological features including severe developmental delay, drug‐resistant seizures and visual impairment. On brain imaging there is megalencephaly with a characteristic ribbon‐like subcortical heterotopia combined with partial or complete callosal agenesis and an overlying polymicrogyria‐like cortical malformation. Several of its features can be recognized on prenatal imaging especially the abnormaly formed lateral ventricles, hydrocephalus (in half of the cases) and suspicion of a neuronal migration disorder. In conclusion, biallelic EML1 disease‐causing variants cause a highly specific pattern of congenital brain malformations, severe developmental delay, seizures and visual impairment.
Manufacturing of polymer/metal composites by fused deposition modeling process with polyethylene
Authors: Nabipour Mojtaba , Akhoundi Behnam , Bagheri Saed Arvin 
Published: November 2019

ABSTRACTIn this study, production of metal/polymer composites using polyethylene as the matrix with various contents of metal powder was investigated. Fused deposition modeling (FDM) process is one of the most popular and conventional additive manufacturing methods to produce three‐dimensional (3D) specimens from computer‐aided design data with complex geometry and lower prices in comparison with the alternative methods. Given the advantages of this process, it seems inevitable for the development of new materials. Utilizing semicrystalline plastics impose challenges for producing parts due to printing issues such as distortion and warpage. In this experimental work, a compounding production line was implemented to produce composite filaments with 25, 50, and 75 wt % of copper powder suitable for the FDM process. After dealing with printing issues, flexural, electrical conductivity, and bulk density tests were done. The micrographs of the specimens were examined via scanning electron microscopy to reveal the distribution of the copper particles. It is believed that the metal/polymer filament could be used to print new 3D parts. The material could be utilized in electromagnetic structures for some specific applications, such as shielding, with new properties. Also, by solving printing problems for a semicrystalline polymer, it can be encouraging to examine printing process for other rarely used thermoplastics. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48717.
Continuous and smooth differentiator based on adaptive sliding mode control for a quad‐rotor MAV
Authors: Castañeda Herman , Rodriguez Jonathan , Gordillo José Luis 
Published: November 2019

AbstractThis paper addresses the design of flight control for a micro air vehicle type quad‐rotor, which assumes partial measurements of outputs and uncertainties/perturbations affecting the aircraft performance. Under such conditions, the approach is a continuous and smooth differentiator based on an adaptive sliding mode controller. The differentiator output is a sufficiently smooth and accurate estimation of the full state even in the presence of noise, such that it allows calculation of the control law. The adaptive sliding control ensures that the quad‐rotor tracks desired trajectories subject to external disturbances, where its adaptive gains use a minimal gain large enough to remain on the sliding mode, but increases their value to reject perturbations as soon as they appear. Furthermore, a closed loop analysis of the controller observer scheme and numerical simulations shows the feasibility and advantages of the proposed method.
Liposoluble compounds from Ganoderma lipsiense grown on solid red rice medium with antiparasitic and antibacterial properties
Authors: Costa Tania Maria , Lenzi Juliana , Paganelli Camila Jeriani , Filho Hercílio Higino da Silva , Alberton Michele Debiasi , Tavares Lorena Benathar Ballod , de Oliveira Débora 
Published: November 2019

AbstractLiposoluble molecules are a group of compounds that display potent biological and therapeutic properties. The present study aimed to identify liposoluble molecules produced by Ganoderma lipsiense grown in red rice medium using solid‐state fermentation (SSF) techniques, and to investigate the antigiardial and antibacterial activities potential of extracts in vitro. Eighteen fatty acids and derivatives were identified by gas chromatograph‐mass spectrometry (GC‐MS) analysis in G. lipsense extract. Qualitative (Fourier transform infrared spectroscopy and nuclear magnetic resonance) characterizations identified the steroid ergosta‐6,22‐diene‐3β,5α,8α‐triol in purified hexane subfraction (HEXsf) F19 isolated from hexane fraction (HEXf) of crude extract (CE). Ergosta‐6,22‐diene‐3β,5α,8α‐triol exhibited significant inhibitory activity against Giardia duodenalis throphozoites (93.6%) in in vitro assays. CE and HEXf inhibited 95.38% and 92.74% of the G. duodenalis throphozoites in 100 µg mL−1, whereas CE and their fractions dichloromethane (DCMf) and ethyl acetate (EAf) showed antibacterial activities against Pseudomonas aeruginosa and Staphylococcus aureus at 500 µg mL−1. Importantly, some liposoluble compounds produced and identified in G. lipsiense are unpublished for this species. This is first report for the production of ergosta‐6,22‐diene‐3β,5α,8α‐triol by G. lipsiense and its antiparasitic activity.
Recent chemo‐/biosensor and bioimaging studies based on indole‐decorated BODIPYs
Authors: Ozcan Emrah , Kazan Hasan Huseyin , Çoşut Bunyemin 
Published: November 2019

AbstractBODIPY is an important fluorophores due to its enhanced photophysical and chemical properties including outstanding thermal/photochemical stability, intense absorption/emission profiles, high photoluminescence quantum yield, and small Stokes' shifts. In addition to BODIPY, indole and its derivatives have recently gained attention because of their structural properties and particularly biological importance, therefore these molecules have been widely used in sensing and biosensing applications. Here, we focus on recent studies that reported the incorporation of indole‐based BODIPY molecules as reporter molecules in sensing systems. We highlight the rationale for developing such systems and evaluate detection limits of the developed sensing platforms. Furthermore, we also review the application of indole‐based BODIPY molecules in bioimaging studies. This article includes the evaluation of indole‐based BODIPYs from synthesis to characterization and a comparison of the advantages and disadvantages of developed reporter systems, making it instructive for researchers in various disciplines for the design and development of similar systems.
A project based innovative approach to an embedded systems course laboratory in software engineering education
Authors: Üstünel Hakan 
Published: November 2019

AbstractIn the software development process, which must be coded depending on the platform, software engineering students should have the optimum hardware competence. In this study, the embedded systems course in the software engineering curriculum is replanned based on the project development process. Sixty software engineering students formed the sample of the research. The sample was divided into two groups, as study and control groups. Presentations of the projects developed by taking into account the multivariate project development stages were realised. A measurement instrument was developed to determine whether there is a change in the attitudes of software engineering students towards embedded systems and related technologies (α = 0.829). At the end of the course, it was determined that the attitudes of the students (survey group) who took the embedded systems course and those who did not take this course (control group) differed significantly. This differentiation is in favour of the survey group.
Anti‐tumor effects of an antagonistic mAb against the ASCT2 amino acid transporter on KRAS‐mutated human colorectal cancer cells
Authors: Hara Yuta , Minami Yushi , Yoshimoto Soshi , Hayashi Natsumi , Yamasaki Akitaka , Ueda Shiho , Masuko Kazue , Masuko Takashi 
Published: November 2019

AbstractKRAS mutations are detected in numerous human cancers, but there are few effective drugs for KRAS‐mutated cancers. Transporters for amino acids and glucose are highly expressed on cancer cells, possibly to maintain rapid cell growth and metabolism. Alanine‐serine‐cysteine transporter 2 (ASCT2) is a primary transporter for glutamine in cancer cells. In this study, we developed a novel monoclonal antibody (mAb) recognizing the extracellular domain of human ASCT2, and investigated whether ASCT2 can be a therapeutic target for KRAS‐mutated cancers. Rats were immunized with RH7777 rat hepatoma cells expressing human ASCT2 fused to green fluorescent protein (GFP). Splenocytes from the immunized rats were fused with P3X63Ag8.653 mouse myeloma cells, and selected and cloned hybridoma cells secreting Ab3‐8 mAb were established. This mAb reacted with RH7777 transfectants expressing ASCT2‐GFP proteins in a GFP intensity‐dependent manner. Ab3‐8 reacted with various human cancer cells, but not with non‐cancer breast epithelial cells or ASCT2‐knocked out HEK293 and SW1116 cells. In SW1116 and HCT116 human colon cancer cells with KRAS mutations, treatment with Ab3‐8 reduced intracellular glutamine transport, phosphorylation of AKT and ERK, and inhibited in vivo tumor growth of these cells in athymic mice. Inhibition of in vivo tumor growth by Ab3‐8 was not observed in HT29 colon and HeLa uterus cancer cells with wild‐type KRAS. These results suggest that ASCT2 is an excellent therapeutic target for KRAS‐mutated cancers.
Synthesis of Cyclic Sulfite Diesters and their Evaluation as Sulfur Dioxide (SO2) Donors
Authors: Malwal Satish R. , Pardeshi Kundansingh A. , Chakrapani Harinath 
Published: November 2019

AbstractAlthough sulfur dioxide (SO2) finds widespread use in the food industry as its hydrated sulfite form, a number of aspects of SO2 biology remain to be completely understood. Of the tools available for intracellular enhancement of SO2 levels, most suffer from poor cell permeability and a lack of control over SO2 release. We report 1,2‐cyclic sulfite diesters as a new class of reliable SO2 donors that dissociate in buffer through nucleophilic displacement to produce SO2 with tunable release profiles. We provide data in support of the suitability of these SO2 donors to enhance intracellular SO2 levels more efficiently than sodium bisulfite, the most commonly used SO2 donor for cellular studies.
Mechanical properties of the drug‐eluting bioresorbable magnesium scaffold compared with polymeric scaffolds and a permanent metallic drug‐eluting stent
Authors: Barkholt Trine Ø. , Webber Bruce , Holm Niels R. , Ormiston John A. 
Published: November 2019

AbstractObjectivesTo compare on the bench the physical and mechanical properties of Magmaris, a magnesium bioresorbable scaffold (BRS), with Absorb and DESolve polymeric BRS and a permanent metallic stent.BackgroundUnderstanding the mechanical and physical properties of BRS is crucial for appropriate implantation and postdilatation.MethodsTesting was performed in fluid at 37°C and in silicone bifurcation phantoms with a 30° angle between main branch (MB) and side branch.ResultsThe 3.0‐mm Magmaris BRS did not fracture after MB postdilatation up to 4.4 mm in contrast to the Absorb where the safe postdilatation diameter was 3.7 mm. For dilatation through stent cells, there were no Magmaris fractures with 3.0‐mm noncompliant (NC) balloons inflated to nominal pressure. Mini‐kissing balloon postdilatation with two 3.0‐mm NC balloons up to 17 atm was without fracture except for an outlier. Longitudinal and radial strengths were similar for Magmaris and Absorb BRS. The crossing profile for the Magmaris was larger than other devices. Recoil 120 min after deployment was the greatest for Magmaris but 120 min after 3.5 mm postdilatation all devices had similar diameters.ConclusionsThe Magmaris BRS was more resistant to strut fracture than Absorb. It had a larger crossing profile than other devices and similar radial and longitudinal strengths to Absorb. While recoil after deployment was greater with Magmaris, 120 min after 3.5 mm postdilatation all devices had similar diameters.
Ternary Complex Formation by Cucurbit[7]uril Leads to Large Shifts in the Reduction Potentials of Suitable Viologens
Authors: Zheng Yeting , Kaifer Angel E. 
Published: November 2019

AbstractThis work addresses the effects of supramolecular complexation by cucurbit[7]uril (CB[7]) on the cell potential of aqueous batteries based on ferrocene and 4,4′‐bipyridinum (viologen) electroactive materials. It was previously known that the oxidation potential of cationic ferrocene derivatives is shifted to more positive values by the formation of highly stable 1 : 1 binary complexes with CB[7]. Here, we found that the formation of 1 : 2 ternary complexes between suitably designed viologens and CB[7] leads to a pronounced shift to more negative values in the first one‐electron reduction potential of the viologen. Combining these two effects, we predict that the corresponding aqueous redox flow battery (RFB) ‐containing cationic ferrocene in the catholyte and viologen in the anolyte‐ will exhibit a potential of 1.04 V in the absence of CB[7] and 1.30 V in the presence of suitable concentrations of CB[7]. This substantial potential increase might be improved in future research, as the supramolecular complexation effect seems to be rather general.