bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fused‐Ring Electron‐Acceptor Single Crystals with Chiral 2D Supramolecular Organization for Anisotropic Chiral Optoelectronic Devices
Authors: Liu Lixuan , Yang Yang , Meskers Stefan C. J. , Wang Qingkai , Zhang Liting , Yang Chen , Zhang Jianqi , Zhu Lingyun , Zhang Yajie , Wei Zhixiang 
Published: July 2023

AbstractSupramolecular chiral organization gives π‐conjugated molecules access to fascinating specific interactions with circularly polarized light (CPL). Such a feature enables the fabrication of high‐performance chiral organic electronic devices that detect or emit CPL directly. Herein, it is shown that chiral fused‐ring electron‐acceptor BTP‐4F single‐crystal‐based phototransistors demonstrate distinguished CPL discrimination capability with current dissymmetry factor exceeding 1.4, one of the highest values among state‐of‐the‐art direct CPL detectors. Theoretical calculations prove that the chirality at the supramolecular level in these enantiomeric single crystals originates from chiral exciton coupling of a unique quasi‐2D supramolecular organization consisting of interlaced molecules with opposite helical conformation. Impressively, such supramolecular organization produces a higher dissymmetry factor along the preferred growth direction of the chiral single crystals in comparison to that of the short axis direction. Furthermore, the amplified, inverted, and also anisotropic current dissymmetry compared to optical dissymmetry is studied by finite element simulations. Therefore, a unique chiral supramolecular organization that is responsible for the excellent chiroptical response and anisotropic electronic properties is developed, which not only enables the construction of high‐performance CPL detection devices but also allows a better understanding of the structure–property relationships in chiral organic optoelectronics.
Reprogrammable Holograms from Maskless Surface Photomorphing
Authors: Reda Francesco , Salvatore Marcella , Astarita Marco , Borbone Fabio , Oscurato Stefano L. 
Published: July 2023

AbstractHolographic technologies have been envisioned as potentially impacting many areas of everyday life, including science, entertainment, and healthcare, but their adoption is still at an early stage. Recent achievements in flat optics research gave an unprecedented strength to this field, proposing holographic devices as light‐modulating structured surfaces at micro and nanoscale. However, these components are typically static, requiring demanding, burdensome, and irreversible lithographic processes. Here a maskless lithographic framework is reported which only uses light irradiation to fabricate reprogrammable diffractive holographic projectors directly on the surface of a dielectric photomorphable polymer film. Lithographic and characterization optical schemes are combined to optimize in real‐time the light‐modulating performances of the surface, producing holograms with enhanced efficiency. Reprogrammable holograms are then demonstrated to change shape and position according to dynamical optical remorphing of the surface, realizing a proof‐of‐concept of a pixel‐less morphological projector. The approach opens new routes for holographic image displaying and dynamic optical data encoding and sharing.
Synthesis and characterization of biobased poly(butylene adipate‐co‐furandicarboxylate) with excellent gas barrier properties
Authors: Dong Yunxiao , Yang Yong , Wang Jinggang , Wang Qianfeng , Zhang Xiaoqin , Hu Han , Zhu Jin 
Published: July 2023

AbstractIn this work, we prepared a series of bio‐based poly(butylene adipate‐co‐furandicarboxylate) (PBAF) copolyesters with BF segments ranging from 20 to 80 mol% through a two‐step polycondensation. Then, their thermal, mechanical, gas barrier, and degradable properties were investigated. With the increase of BF content, the glass transition temperatures (Tg) and melting temperatures (Tm) of PBAFs increase constantly. Besides, PBAF copolyesters exhibit excellent mechanical performance with elongation at break in the range of 140% to 870%. The elastic modulus and tensile strength of PBAF60 are 138 and 17 MPa respectively, which are comparable to those of commercial poly(butylene adipate‐co‐terephthalate) (PBAT). Moreover, thanks to the structural characteristics of the furan ring, the barrier performances against CO2, O2, and H2O of PBAFs are 4.6–147.5 folds, 4.0–76.0 folds, and 0.8–8.7 folds of PBAT, respectively. Finally, the degradation tests reveal that the weight losses of PBAFs increase with decreasing BF contents. It is worth emphasizing that although the compost degradation rate of PBAF60 is slightly lower than that of PBAT, it is still a prospective alternative to PBAT due to its improved barrier properties. And it provides a possibility for applications in food packaging, mulch films, and structural elements.
The photon‐electrical conversion efficiency of dye‐sensitive solar cells fabricated using a highly conductive silver‐nanoparticle/titania photocathode
Authors: Daniel Likius S. , Kaffer Rocha T. , Kalipi Loini M. , Rahman Ateeq , Kalengay Mbela , Uahengo Veikko 
Published: July 2023

AbstractThe TiO2 thin film, Ag NP and three Ag‐NP/TiO2 composite thin films (COMP‐Agn; n = 20, 50, and 75 Ag mol%) were successfully fabricated on quartz glass. The optical properties of the composite electrodes were investigated, and the results indicate a surface plasmonic resonance peak at 410 nm while the electrical resistivity of the composite thin films improved up to 6.9 × 10−5 Ω cm. The photo‐response threshold of the Ag‐NP/TiO2 composite thin films was enhanced and shifted into the visible and near‐infrared when the chlorophyll dye was adsorbed onto them. The hall effect was performed on the fabricated thin films and the charge carrier concentrate value confirmed that the Ag/TiO2 with Ag concentrate >45% are found to be p‐type. The n‐types were observed till the Ag content in TiO2 was increased up to 45 mol%. COMP‐Ag75 has a charge carrier concentration of 1.3 × 10−19 cm−3 as a p‐type electrode was then employed to construct a p‐DSSC. Such enhancement on photovoltaic activity can be attributed to the generated Z‐scheme system in the anatase/rutile phase‐junction Ag/TiO2 photocathode enhances the separation, diffusion, and transformation of electron/hole pairs inside the structure. This p‐DSSC exhibits a photon‐electrical conversion efficiency (PCE) of 0.37%. The PCE recorded is equal to or greater than those of traditional high‐efficiency n‐DSSCs. This allows the creation of a new generation of photocathodic p‐DSSCs with previously unheard‐of unprecedentedly high concentrations of Ag (up to 80 mol%) evenly scattered in a TiO2 matrix, and this efficacy is the highest ever reported for a p‐type working Ag/TiO2/chlorophyll/iodine electrode. This may enable the use of this electrode as a component of photosensitizer tandem devices.
The Role of Interchain Force and/or Chain Entanglement in the Melt Strength and Ductility of PLA‐Based Materials
Authors: Li Deling , Chen Ying , Sun Limei , Zhou Jun , Dong Liming , Ren Jizhen 
Published: July 2023

AbstractAs an eco‐friendly material, PLA was a desirable alternative to polyethylene and polypropylene films due to its biodegradability. The preferable melt strength of PLA‐based materials was a key factor in ensuring its processing using extrusion blow. This paper focuses on the influence of interchain force and/or chain entanglement on the melt strength and ductility of PLA‐based materials in recent years. In addition, the preparation of PLA‐based materials via physical blending or reactive processing was also summarized. The blending of PLA with a flexible heteropolymer, driven by the interchain force and/or chain entanglements, were characterized as a practicable method for toughening PLA‐based materials. Also, the restructuring of PLA chains, by branching based on chain entanglement, was suitable for increasing chain entanglements in PLA matrix, yielding satisfactory melt strength and ductility. This review aims to elucidate the relationship between interchain forces and/or entanglement with the melt strength and ductility of PLA‐based materials. An essential and systematic understanding of the tailoring melt strength and rheological properties of PLA by interchain forces and/or entanglement was apt to improve and perfect the processing technology of the extrusion blow, and consequently improve the tensile strength and toughness of PLA films.
Iterative learning algorithms for boundary tracing of fractional diffusion equations
Authors: Wang Jungang , Wang Qian , Bao Jun , Si Qingyang 
Published: July 2023

AbstractWe study P‐type and PI
‐type iterative learning control (ILC) schemes for boundary tracing problem of nonhomogeneous fractional diffusion equations. Based on Sobolev imbedding theorem, we derive sufficient conditions for the convergence of four ILC schemes in the sense of
‐norm. Numerical examples are presented to illustrate effectiveness of the proposed control methods. The results show that closed‐loop ILC scheme converges faster than open‐loop ILC scheme; moreover, PI
‐type
ILC scheme outperforms P‐type and PI‐type
ILC schemes in terms of the convergence speed.
Thrombolytic and anticoagulant efficiencies of purified fibrinolytic enzyme produced from Cochliobolus hawaiiensis under solid‐state fermentation
Authors: Abu‐Tahon Medhat Ahmed , Abdel‐Majeed Ahmad Mohammad , Ghareib Mohamed , Housseiny Manal Maher , Abdallah Wafaa E. 
Published: July 2023

AbstractCochliobolus hawaiiensis Alcorn Assiut University Mycological Centre 8606 was chosen from the screened 20 fungal species as the potent producer of fibrinolytic enzyme on skimmed‐milk agar plates. The greatest enzyme yield was attained when the submerged fermentation (SmF) conditions were optimized, and it was around (39.7 U/mg protein). Moreover, upon optimization of fibrinolytic enzyme production under solid‐state fermentation (SSF), the maximum productivity of fibrinolytic enzyme was greatly increased recorded a bout (405 U/mg protein) on sugarcane bagasse, incubation period of 5 days, moisture level of 100%, initial pH of salt basal medium 7.8, incubation temperature at 35°C, and supplementation of the salt basal medium with corn steep liquor (80％, v/v). The yield of fibrinolytic enzyme by C. hawaiiensis under SSF was higher than that of SmF with about 10.20‐fold. The purification procedures of fibrinolytic enzyme by ammonium sulfate (70%), gel filtration, and ion‐exchange columns chromatography caused a great increase in its specific activity to 2581.6 U/mg protein with an overall yield of 55.89%, 6.37 purification fold and molecular weight of 35 kDa. Maximal activity was recorded at pH 7 and 37°C. Significant pH stability was recorded at pH 6.6–7.2, and thermal stability was recorded at 33–41°C. The enzyme showed the highest affinity toward fibrin, with Vmax of 240 U/mL and an apparent Km value of 47.61 mmol. Mg2+ and Ca2+ moderately induced fibrinolytic activity, whereas Cu2+ and Zn2+ greatly suppressed the enzyme activity. The produced enzyme is categorized as serine protease and non‐metalloprotease. The purified fibrinolytic enzyme showed efficient thrombolytic and antiplatelet aggregation activities by completely prevention and dissolution of the blood clot which confirmed by microscopic examination and amelioration of blood coagulation assays. These findings suggested that the produced fibrinolytic enzyme is a promising agent in management of blood coagulation disorders.
How do friendship artificial intelligence chatbots (FAIC) benefit the continuance using intention and customer engagement?
Authors: Li Baoku , Yao Ruoxi , Nan Yafeng 
Published: July 2023

AbstractAlthough there have been many AI chatbots in industry service, social media, and e‐commerce platforms, research on AI chatbots such as Replika, neglected the effects of human‐like traits on users' continuance using intention. This article aims to explore the main effects of human‐like traits (perceived warmth vs. perceived competence) of friendship AI chatbots (FAIC) on continuance using intention and customer engagement, and the moderating effects of the need to belong and information sensitivity. Three studies are conducted to collect data (Ntotal = 1420). Our findings of Study 1 demonstrate that perceived warmth and perceived competence can increase the continuance using intention to FAIC and customer engagement, and perceived usefulness plays a mediating role in our conceptual model. Additionally, consumers' need to belong (high vs. low) (Study 2) and information sensitivity (high vs. low) (Study 3) related to chat contents moderate the main effects significantly. This article contributes to the literature on the relationship between FAIC and consumers by presenting the influence of perceived warmth and perceived competence and establishing the underlying process. Analogously, the findings can be beneficial for marketers and firms in designing and developing the coding program of FAIC to promote consumers' continuance using intention and customer engagement.
Appealing to Gen Z with Mother Nature for sustainable consumption: With mediation of psychological closeness to nature and consequence of psychological well‐being
Authors: Jeong Hyun Ju , Kim Mikyoung 
Published: July 2023

AbstractAlthough Gen Z consumers show greater concern about sustainability than other generational cohorts, specific investigations into their sustainable consumption regarding their perceptions towards nature are relatively understudied. To address this gap, this research examines the way Gen Z consumers view nature and engage in sustainable consumption. Through a cross‐sectional survey in the U.S., the study finds that the individual tendency to anthropomorphize nature contributes to shaping psychological closeness to nature. Furthermore, nature anthropomorphism enhances sustainable consumption, and this is mediated by consumer perception of psychological closeness to nature. Additionally, sustainable consumption leads to psychological well‐being. These findings highlight that the extent to which Gen Z consumers find humanness in nature contributes to sustainable consumption by enhancing a feeling of being close to nature and this process results in the enhancement of psychological well‐being. Theoretical and practical implications are discussed.
Chemodiversity and α‐Glucosidase Activity of Eucalyptus Species from Northwestern Himalaya, India
Authors: Maurya Antim K. , Aggarwal Gaurav , Vashisath Sachin , Kumar Vikas , Agnihotri Vijai K. 
Published: July 2023

AbstractThe aim of current work was to determine essential oils (EOs) composition from three Eucalyptus species, including E. citriodora, E. camaldulensis and E. globulus and assess their α‐glucosidase inhibitory activity. The EOs were collected using the hydrodistillation technique and characterized by GC/MS, GC‐FID and NMR. The isolated EOs from leaves parts of Eucalyptus species varied from 0.56 to 1.0 % on fresh weight basis. The content of the EOs was distinct according to the species. The most abundant metabolites were identified as citronellal (0–83.0 %), 1,8‐cineole (0.2–44.8 %), spathulenol (0.4–16.1 %) α‐pinene (0.4–15.9 %), p‐cymene (3.7–11.9 %), citronellol (0–8.6 %), β‐eudesmol (5.3–8.6 %) and β‐pinene (0–7.1 %). The EOs obtained from targeted samples exhibited strong α‐glucosidase inhibitory activity. These results are encouraging and underline that the EOs of Eucalyptus species may be a promising alternative source of natural antidiabetic.
Multiple Hydrogen‐Bonding Catalysts Enhance the Asymmetric Cyanation of Ketimines and Aldimines
Authors: Zhao Yunhui , Luo Yueyang , Liu Jun , Zheng Changwu , Zhao Gang 
Published: July 2023

AbstractA highly enantioselective cyanation of imines (up to >99 % ee) has been developed using well‐designed C2‐symmetric hydrogen bonding catalysts. The catalytic strategy was characterized with low catalyst loading (0.1–1 mol %), easily accessible catalysts with diverse functional groups, and catalytic base additives. A wide range of imines, including the challenging N‐Boc and N‐Cbz protected ketimines and aldimines, as well as fluoroalkylated ketimines, were investigated under mild conditions to afford the products with good to excellent yields (up to 99 % yield) and high enantioselectivity (up to >99 % ee). Control experiments revealed that the multiple hydrogen bonding catalysts enhanced the reactivity and enantioselectivity of the Strecker reaction initiated by the base.
Track‐Etched Membranes for Drug Pharmaceutical Research
Authors: Cuanalo-Contreras Karina , Hogrebe Andreas M.R. , Teichmann Karoline , Benkmann Dennis 
Published: July 2023

AbstractOver the last decades, the incorporation of membranes into micro physiological systems used for pharmaceutical research and drug development has grown significantly. One example is the use of microporous track‐etched membranes in microfluidic systems like organs‐on‐a‐chip and cell culture inserts for tissue engineering. Tissue‐culture treated track‐etched membranes serve as excellent support for cell growth and efficient nutrient supply, with the added benefit of precise control of pore parameters, a critical pre‐requisite to achieve reproducible results. Here, we provide an overview of track‐etched membrane technology in the context of applications in drug discovery and development.
Formulae for generating standard and individual human cone spectral sensitivities
Authors: Stockman Andrew , Rider Andrew T. 
Published: July 2023

AbstractNormal color perception is complicated. But at its initial stage it is relatively simple, since at photopic levels it depends on the activations of just three photoreceptor types: the long‐ (L‐), middle‐ (M‐) and short‐ (S‐) wavelength‐sensitive cones. Knowledge of how each type responds to different wavelengths—the three cone spectral sensitivities—can be used to model human color vision and in practical applications to specify color and predict color matches. The CIE has sanctioned the cone spectral sensitivity estimates of Stockman and Sharpe (Stockman and Sharpe, 2000, Vision Res) and their associated measures of luminous efficiency as “physiologically‐relevant” standards for color vision (CIE, 2006; 2015). These LMS cone spectral sensitivities are specified at 5‐ and 1‐nm steps for mean “standard” observers with normal cone photopigments and average ocular transparencies, both of which can vary in the population. Here, we provide formulae for the three cone spectral sensitivities as well as for macular and lens pigment density spectra, all as continuous functions of wavelength from 360 to 850 nm. These functions reproduce the tabulated discrete CIE LMS cone spectral sensitivities for 2‐deg and 10‐deg with little error in both linear and logarithmic units. Furthermore, these formulae allow the easy computation of non‐standard cone spectral sensitivities (and other color matching functions) with individual differences in macular, lens and photopigment optical densities, and with spectrally shifted hybrid or polymorphic L‐ and M‐cone photopigments appropriate for either normal or red‐green color vision deficient observers.
Level vector pulse width modulation for multilevel inverters
Authors: Qanbari Tohid , Tousi Behrouz , Farhadi‐Kangarlu Mohammad 
Published: July 2023

SummaryIn this paper, a novel method named as level vector pulse width modulation (LVPWM) is proposed for multilevel inverters. Similar to the conventional space vector pulse width modulation (SVPWM), the proposed method is a vector‐based method in the α–β frame. Unlike the SVPWM, the variables of each of the α and β axes are considered separately. Instead of space vectors, level vectors are considered for the synthesis of the reference vectors. There is no need to consider multiple switching states, vectors, and large lookup tables in the algorithm. The appropriate switching states for the synthesis of the reference vectors are determined using simple computations at each sampling time. Generality for different inverter topologies, online implementation, simplicity of the algorithm and computations, independency of the algorithm complexity from the number of switching states, and easy extension to overmodulation region are the advantages of the proposed method. Implementation of the LVPWM in different inverter topologies is studied. The validation of the proposed modulation strategy is carried out by simulation and experimental results.
Plant volatiles and priority effects interactively determined initial community assembly of arthropods on multiple willow species
Authors: Yoneya Kinuyo , Miki Takeshi , Katayama Noboru 
Published: July 2023

AbstractPlant traits, which are often species specific, can serve as environmental filtering for community assembly on plants. At the same time, the species identity of the initially colonizing arthropods would vary between plant individuals, which would subsequently influence colonizing arthropods and community development in the later stages. However, it remains unclear whether interindividual divergence due to priority effects is equally important as plant trait‐specific environmental filtering in the initial stages. In this study, we propose that plant volatile organic compounds (PVOCs) may play a crucial role as an environmental filter in the initial stages of community assembly, which can prevent the community assembly process from being purely stochastic. To test this hypothesis, we conducted short term but highly frequent monitoring (19 observations over 9 days) of arthropod community assembly on intact individuals of six willow species in a common garden. PVOC compositions were analyzed before starting the experiment and compared with arthropod compositions occurring on Days 1–2 of the experiment (earliest colonizer community) and those occurring on Days 8–9 of the experiment (subsequent colonizer community). Unintentionally, deer herbivory also occurred at night of Day 2. Distance‐based statistics demonstrated that PVOC compositions were plant species specific, but neither the earliest colonizer nor the subsequent colonizer community composition could be explained by plant species identity. Rather, Procrustes analysis showed that both the PVOC composition and that of the earliest colonizer community can be used to explain the subsequent colonizer community. In addition, the linkage between PVOCs and the subsequent colonizer community was stronger on individuals with deer herbivory. These findings indicate that PVOCs have widespread effects on initial community assembly, as well as priority effects brought on by stochastic immigration, and that plant species identity only has weak and indirect effects on the actual composition of the community.