bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Self‐Powered Gas Sensor Based on Coupling Triboelectric Screening and Impedance Matching Effects
Authors: Liu Sainan , Yuan Guotao , Zhang Yi , Xie Lingjie , Shen Qingqing , Lei Hao , Wen Zhen , Sun Xuhui 
Published: August 2021

AbstractTriboelectric gas sensors enable the detection of the target gas through measuring the variation of triboelectric output signal without an external power supply. The output depends greatly on triboelectric surface alteration of certain chemisorption of gas species. However, the impact of the variation in impedance of sensor electrodes altered by external stimuli is usually neglected, which can significantly affect the output signal of the sensor. In this work, a coupling triboelectric screening and impedance matching effects‐based high‐performance self‐powered triboelectric gas sensor has been proposed. Polyaniline (PANI) film is employed as both electrodes and positive triboelectric layer, as well as sliced polytetrafluoroethylene spaced on PANI as negative triboelectric layer. When exposed to ammonia, the output voltage decreases with the increasing concentration, and the response in low ammonia concentrations exhibits a steep slope, on account of limited active adsorption sites on triboelectric layers. The surface potential distributions of PANI film in three different gaseous ambient measured by in situ Kelvin probe force microscopy and experimental analysis systematically elaborate the triboelectric screening effect. Finally, a sensing‐electrode theoretical model has been demonstrated to verify the impedance matching effect of PANI electrode, opening up an effective strategy for the new generation of triboelectric sensors.
Engineering Plasmonic Colloidal Meta‐Molecules for Tunable Photonic Supercrystals
Authors: Molet Pau , Passarelli Nicolás , Pérez Luis A. , Scarabelli Leonardo , Mihi Agustín 
Published: August 2021

AbstractOrdered arrays of metal nanoparticles offer new opportunities to engineer light–matter interactions through the hybridization of Rayleigh anomalies and localized surface plasmons. The generated surface lattice resonances exhibit much higher quality factors compared to those observed in isolated metal nanostructures. Template‐induced colloidal self‐assembly has already shown a great potential for the scalable fabrication of 2D plasmonic meta‐molecule arrays, but the experimental challenge of controlling optical losses within the repeating units has so far prevented this approach to compete with more standard fabrication methods in the production of high‐quality factor resonances. In this manuscript, the optical properties of plasmonic arrays are investigated by varying the lattice parameter (between 200 and 600 nm) as well as the diameter of the gold colloidal building‐blocks (between 11 ± 1 and 98 ± 6 nm). It is systematically studied how the internal architecture of the repeating gold‐nanoparticle meta‐molecules influences the optical response of the plasmonic supercrystals. Combining both experimental measurements and simulations, it is demonstrated how, reducing the size of the gold nanoparticles it is possible to switch from strong near‐field plasmonic architectures to high‐quality factors (>60) for lattice plasmon resonances located in the visible spectral range.
Emission Manipulation by DNA Origami‐Assisted Plasmonic Nanoantennas
Authors: Yeşilyurt Ayşe Tuğça Mina , Huang Jer‐Shing 
Published: August 2021

AbstractPlasmonic nanoantennas mediate far and near optical fields and confine the light to subwavelength dimensions. The spatial organization of nanoantenna elements is critical as it affects the interelement coupling and determines the resultant antenna mode. To couple quantum emitters to optical antennas, high precision on the order of a few nm with respect to the antenna is necessary. As an emerging nanofabrication technique, DNA origami has proven itself to be a robust nanobreadboard to obtain sub‐5 nm positioning precision for a diverse range of materials. Eliminating the need for expensive state‐of‐the‐art top‐down fabrication facilities, DNA origami enables cost‐efficient implementation of nanoscale architectures, including novel nanoantennas. The ability of DNA origami to deterministically position single quantum emitters into nanoscale hotspots further boosts the efficiency of light–matter interaction controlled via optical antennas. This review recapitulates the recent progress in plasmonic nanoantennas assisted by DNA origami and focuses on their various configurations. How those nanoantennas act on the emission and absorption properties of quantum emitters positioned in the hotspots is explicitly discussed. In the end, open challenges are outlined and future possibilities lying ahead are pointed out for this powerful triad of biotechnology, nanooptics, and photophysics.
Iron distribution in different tissues of homozygous Mask (msk/msk) mice and the effects of oral iron treatments
Authors: Asperti Michela , Brilli Elisa , Denardo Andrea , Gryzik Magdalena , Pagani Francesca , Busti Fabiana , Tarantino Germano , Arosio Paolo , Girelli Domenico , Poli Maura 
Published: August 2021

AbstractIron‐refractory iron deficiency anemia (IRIDA) is an autosomal recessive disorder caused by genetic mutations on TMPRSS6 gene which encodes Matriptase2 (MT2). An altered MT2 cannot appropriately suppress hepatic BMP6/SMAD signaling in case of low iron, hence hepcidin excess blocks dietary iron absorption, leading to a form of anemia resistant to oral iron supplementation. In this study, using the IRIDA mouse model Mask, we characterized homozygous (msk/msk) compared to asymptomatic heterozygous (msk/wt) mice, assessing the major parameters of iron status in different organs, at different ages in both sexes. The effect of carbonyl iron diet was analyzed as control iron supplementation being used for many studies in mice. It resulted effective in both anemic control and msk/msk mice, as expected, even if there is no information about its mechanism of absorption. Then, we mainly compared two forms of oral iron supplement, largely used for humans: ferrous sulfate and Sucrosomial iron. In anemic control mice, the two oral formulations corrected hemoglobin levels from 11.40 ± 0.60 to 15.38 ± 1.71 g/dl in 2–4 weeks. Interestingly, in msk/msk mice, ferrous sulfate did not increase hemoglobin likely due to ferroportin/hepcidin‐dependent absorption, whereas Sucrosomial iron increased it from 11.50 ± 0.60 to 13.53 ± 0.64 g/dl mainly in the first week followed by a minor increase at 4 weeks with a stable level of 13.30 ± 0.80 g/dl, probably because of alternative absorption. Thus, Sucrosomial iron, already used in other conditions of iron deficiency, may represent a promising option for oral iron supplementation in IRIDA patients.
Environmental and anthropogenic effects on the nesting patterns of Nigeria–Cameroon chimpanzees in North‐West Cameroon
Authors: Fotang Chefor , Bröring Udo , Roos Christian , Enoguanbhor Evidence C. , Dutton Paul , Tédonzong Luc R. D. , Willie Jacob , Yuh Yisa G. , Birkhofer Klaus 
Published: August 2021

AbstractEnvironmental conditions and human activity influence the selection of nest sites by chimpanzees and may have serious conservation implications. We examined the characteristics of nesting trees preferred by chimpanzees, investigated the effect of vegetation composition and topography on nest site locations and seasonality on nesting heights of chimpanzees, and verified the effect of predator occurrence and human activity on the nesting behavior of the Nigeria–Cameroon chimpanzee (Pan troglodytes ellioti) in Kom‐Wum Forest Reserve (KWFR) and surrounding unprotected forest in Cameroon. We recorded 923 nests, 502 signs of human activity, and 646 nesting trees along line transects and recces (reconnaissance) for two seasons. We found that chimpanzees constructed more arboreal nests on tall primary trees with high lowest branch height and large diameter at breast height. Moreover, they oriented their nests within trees in the slope direction when the nesting trees were located on slopes. Additionally, the occurrence of chimpanzee nests was positively related to increasing elevation and slope and decreased with distance to primary forest. In contrast, the number of nests increased with distance to secondary forest, open land, and villages, and nesting height was not influenced by seasons. While we recorded no signs of large nocturnal chimpanzee predators at nesting trees, we found signs of hunting activity at nesting locations. Nesting high in trees is likely a way of avoiding hunting, while nest orientation within trees in slope direction shortens escape routes from human hunters. Our findings suggest that chimpanzees select safe trees (tall trees with high lowest branch height) located in nesting areas (primary forest, high elevation, and steep slopes) that are not easily accessible by humans. Therefore, conservation efforts should focus on protecting primary forests at high elevation and steep slopes and reducing human impact.
Direct Detection of Surface Species Formed on Iridium Electrocatalysts during the Oxygen Evolution Reaction
Authors: BalaKrishnan Arjun , Blanc Niclas , Hagemann Ulrich , Gemagami Parham , Wonner Kevin , Tschulik Kristina , Li Tong 
Published: August 2021

AbstractThe effect of surface orientations on the formation of iridium oxide species during the oxygen evolution reaction (OER) remains yet unknown. Herein, we use a needle‐shaped iridium atom probe specimen as a nanosized working electrode to ascertain the role of the surface orientations in the formation of oxide species during OER. At the beginning of electrolysis, the top 2–3 nm of (024), (026), (113), and (115) planes are covered by IrO−OH, which activates all surfaces towards OER. A thick subsurface oxide layer consisting of sub‐stoichiometric Ir−O species is formed on the open (024) planes as OER proceeds. Such metastable Ir−O species are thought to provide an additional contribution to the OER activity. Overall, this study sheds light on the importance of the morphological effects of iridium electrocatalysts for OER. It also provides an innovative approach that can directly reveal surface species on electrocatalysts at atomic scale.
Direct NO Reduction by a Biomimetic Iron(II) Pyrazolate MOF
Authors: Cai Zhongzheng , Tao Wenjie , Moore Curtis E. , Zhang Shiyu , Wade Casey R. 
Published: August 2021

AbstractA novel metal‐organic framework (MOF) containing one‐dimensional, Fe2+ chains bridged by dipyrazolate linkers and N,N‐dimethylformamide (DMF) ligands has been synthesized. The unusual chain‐type metal nodes feature accessible coordination sites on adjacent metal centers, resulting in motifs that are reminiscent of the active sites in non‐heme diiron enzymes. The MOF facilitates direct reduction of nitric oxide (NO), producing nearly quantitative yields of nitrous oxide (N2O) and emulating the reactivity of flavodiiron nitric oxide reductases (FNORs). The ferrous form of the MOF can be regenerated via a synthetic cycle involving reduction with cobaltocene (CoCp2) followed by reaction with trimethylsilyl triflate (TMSOTf).
Mild Intermolecular Synthesis of a Cyclopropane‐Containing Tricyclic Skeleton: Unusual Reactivity of Isobenzopyryliums
Authors: Liu Shuxuan , Qian Hui , Zhang Tianyu , Xie Hongling , Han Zhengyu , Guo Wengang , Huang Hai , Sun Jianwei 
Published: August 2021

AbstractCyclopropanes embedded in a polycyclic bridged architecture are a versatile structural motif, but such complex frameworks often impose substantial synthetic challenges. Herein we introduce a new approach for the expedient access to such spring‐loaded strained systems via an exceptionally mild intermolecular convergent process between the readily available isobenzopyryliums and vinyl boronic acids. Different from the typical conventional approaches, our protocol does not involve the highly active carbenoid intermediates or strong conditions in order to overcome the disfavored kinetic and thermodynamic problems. Instead, the key cyclopropane ring was formed between the well‐positioned nucleophile and electrophile in the adduct from the regioselective [4+2] cycloaddition. Thus, this unusual process also represents a new reactivity of the versatile isobenzopyryliums. The choice of a Brønsted acid catalyst with proper acidity is crucial to the high efficiency and selectivity for this multiple bond‐forming process. The strained products are precursors to other useful synthetic building blocks.
Four‐Selective Pyridine Alkylation via Wittig Olefination of Dearomatized Pyridylphosphonium Ylides
Authors: Fricke Patrick J. , Dolewski Ryan D. , McNally Andrew 
Published: August 2021

AbstractMethods to synthesize alkylated pyridines are valuable because these structures are prevalent in pharmaceuticals and agrochemicals. We have developed a distinct approach to construct 4‐alkylpyridines using dearomatized pyridylphosphonium ylide intermediates in a Wittig olefination‐rearomatization sequence. Pyridine N‐activation is key to this strategy, and N‐triazinylpyridinium salts enable coupling between a wide variety of substituted pyridines and aldehydes. The alkylation protocol is viable for late‐stage functionalization, including methylation of pyridine‐containing drugs. This approach represents an alternative to metal‐catalyzed sp2‐sp3 cross‐coupling reactions and Minisci‐type processes.
Sono‐Fenton Chemistry Converts Phenol and Phenyl Derivatives into Polyphenols for Engineering Surface Coatings
Authors: Mei Hanxiao , Gao Zhiliang , Zhao Kaijie , Li Mengqi , Ashokkumar Muthupandian , Song Aixin , Cui Jiwei , Caruso Frank , Hao Jingcheng 
Published: August 2021

AbstractWe report a sono‐Fenton strategy to mediate the supramolecular assembly of metal–phenolic networks (MPNs) as substrate‐independent coatings using phenol and phenyl derivatives as building blocks. The assembly process is initiated from the generation of hydroxyl radicals (.OH) using high‐frequency ultrasound (412 kHz), while the metal ions synergistically participate in the production of additional .OH for hydroxylation/phenolation of phenol and phenyl derivatives via the Fenton reaction and also coordinate with the phenolic compounds for film formation. The coating strategy is applicable to various phenol and phenyl derivatives and different metal ions including FeII, FeIII, CuII, and CoII. In addition, the sono‐Fenton strategy allows real‐time control over the assembly process by turning the high‐frequency ultrasound on or off. The properties of the building blocks are maintained in the formed films. This work provides an environmentally friendly and controllable method to expand the application of phenolic coatings for surface engineering.
Preparation and properties of PBAT/PLA composites modified by PVA and cellulose nanocrystals
Authors: Liu Hailu , Chen Ruilian , Sun Xiaoyan , Li Fayong , Shen Huayan , Wang Ke , Wang Qing , Li Yuan , Xie Dong , Chen Junjia 
Published: August 2021

AbstractCellulose nanocrystal (CNC) was prepared through the hydrolysis of concentrated sulfuric acid using commercial bagasse pulp as a raw material. The performance of the developed CNC was tested through the atomic force microscope, particle size measurement, and zeta potential analysis. The melt blending method was adopted to prepare thermoplastic polyvinyl alcohol (TPVA) and CNC‐TPVA using the glycerol (GI)‐dicondensed triethylene glycol (TEG) complex. The TPVA and CNC‐TPVA were blended with poly(butylene adipate‐coterephthalate) and polylactic acid composite material (COM) through melt extrusion granulation and blown film, and then explored the effect of CNC on the UV aging properties of materials. The complex plasticizer could effectively break the PVA hydrogen bond and reduce its melting point. It had been observed that CNC had good interface compatibility with PVA, and CNC did not affect the crystallinity of PVA, but it could weaken the hydrogen bond between GI, TEG, and PVA, thereby reduce the plasticizing effect of PVA. Compared TPVA‐COM with CNC‐TPVA‐COM, detailed information of crystallization, the thermal stability of materials and mechanical properties was presented in the UV aging process, it was found that the cross‐section of CNC‐TPVA‐COM was rough, and its unevenness formed a striped structure, and its hydrogen bond strength, diffraction peak strength and anti‐aging performance were all improved.
Visible‐Light‐Driven Sulfonylation/Cyclization to Access Sulfonylated Benzo[4,5]imidazo[2,1‐a]isoquinolin‐6(5H)‐ones
Authors: Wang Chen , Sun Guoquan , Huang Hong‐Li , Liu Jing , Tang Hua , Li Yinghua , Hu Honggang , He Shipeng , Gao Fei 
Published: August 2021

AbstractVisible‐light‐driven sulfonylation/cyclization of N‐methacryloyl‐2‐phenylbenzoimidazoles has been successfully developed. Using commercially available sulfonyl chloride as sulfonylation reagent, a wide range of sulfonylated benzo[4,5]imidazo[2,1‐a]isoquinolin‐6(5H)‐ones with potential antitumor activity were provided in acceptable to excellent yields. This method has the advantages of mild reaction conditions and outstanding functional group tolerance, and provides a new strategy for the development of potential antitumor lead compounds.
The parallel treatments design: A systematic review
Authors: Frampton Sarah E. , Guinness Kendra E. , Axe Judah B. 
Published: August 2021

AbstractThe identification of interventions that are both effective and efficient is an ongoing need for the practice of applied behavior analysis. The parallel treatments design (PTD) has been described as powerful tool for comparing interventions in applied settings. The PTD combines elements of the multiple probe design and the adapted alternating treatments design. Execution of a PTD requires adherence to experimental tactics related to both designs, as well as adherence to specific features of the PTD outlined by the original authors (Gast & Wolery, 1988). The purpose of this systematic literature review was to evaluate (a) publication trends with the PTD, (b) applications of the PTD across behaviors and interventions, and (c) the extent to which articles that named the PTD as the design adhered to its defining features. Outcomes are discussed with respect to the utility of the PTD, limitations of the PTD, and potential refinements of the definition of the PTD.
Industry 4.0, innovation, and sustainable development: A systematic review and a roadmap to sustainable innovation
Authors: Ghobakhloo Morteza , Iranmanesh Mohammad , Grybauskas Andrius , Vilkas Mantas , Petraitė Monika 
Published: August 2021

AbstractDespite the recent interest in the Industry 4.0 applications for sustainability, little is known on the processes through which digital transformation and Industry 4.0 technologies enable sustainable innovation in manufacturing. The present study addresses this knowledge gap by developing a strategic roadmap that explains how businesses can leverage Industry 4.0 technologies to introduce sustainability into innovative practices. For this purpose, the study conducts a systematic review of extant literature to identify Industry 4.0 functions for sustainable innovation and applies interpretive structural modeling to devise the promised roadmap. The results offer interesting insights into Industry 4.0 applications for sustainable innovation. The strategic roadmap developed reveals that Industry 4.0 enables sustainable innovation through 11 functions. Industry 4.0 and the underlying digital technologies and principles allow businesses to improve interfunctional collaboration and better integrate with internal and external stakeholders. Industry 4.0 further improves the knowledge base and advanced manufacturing competency and promotes organizational capabilities valuable to sustainable innovation such as green absorptive capacity, sustainable partnership, and sustainable innovation orientation. Through these functions, Industry 4.0 subsequently enhances green process innovation capacity and the ability to develop or reintroduce eco‐friendly products economically and competitively. Overall, the roadmap explains the complex precedence relationships among the 11 sustainable innovation functions of Industry 4.0, offering important implications for businesses that seek to leverage Industry 4.0 sustainability implications and manage sustainable development.
Stenting as a treatment for cranio‐cervical artery dissection: Improved major adverse cardiovascular event‐free survival
Authors: Vezzetti Alexandra , Rosati Lauren M. , Lowe Forrest J. , Graham C. Blease , Moftakhar Roham , Mangubat Erwin , Sen Souvik 
Published: August 2021

AbstractIntroductionCranio‐cervical artery dissection (CeAD) is a common cause of cerebrovascular events in young subjects with no clear treatment strategy established. We evaluated the incidence of major adverse cardiovascular events (MACE) in CeAD patients treated with and without stent placement.MethodsCOMParative effectiveness of treatment options in cervical Artery diSSection (COMPASS) is a single high‐volume center observational, retrospective longitudinal registry that enrolled consecutive CeAD patients over a 2‐year period. Patients were ≥ 18 years of age with confirmed extra‐ or intracranial CeAD on imaging. Enrolled participants were followed for 1 year evaluating MACE as the primary endpoint.ResultsOne‐hundred ten patients were enrolled (age 53 ± 15.9, 56% Caucasian, and 50% male, BMI 28.9 ± 9.2). Grade I, II, III, and IV blunt vascular injury was noted in 16%, 33%, 19%, and 32%, respectively. Predisposing factors were noted in the majority (78%), including sneezing, carrying heavy load, chiropractic manipulation. Stent was placed in 10 (10%) subjects (extracranial carotid n = 9; intracranial carotid n = 1; extracranial vertebral n = 1) at the physician's discretion along with medical management. Reasons for stent placement were early development of high‐grade stenosis or expanding pseudoaneurysm. Stented patients experienced no procedural or in‐hospital complications and no MACE between discharge and 1 year follow up. CeAD patients treated with medical management only had 14% MACE at 1 year.ConclusionIn this single high‐volume center cohort of CeAD patients, stenting was found to be beneficial, particularly with development of high‐grade stenosis or expanding pseudoaneurysm. These results warrant confirmation by a randomized clinical trial.