bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hydrothermal Modification of As‐Spun Polyurethane Micro‐Nanofibers Using Silk Fibroin and Biologically Reduced Silver Nanoparticles for Efficient Hydrophilicity and Antibacterial Properties
Authors: Khan Rumysa Saleem , Rather Anjum Hamid , Wani Taha Umair , Rafiq Muheeb , Rather Sami‐Ullah , Jadhav Arvind H , M. Hemavathi , Kanjwal Muzafar A. , Sheikh Faheem A. 
Published: July 2023

AbstractThe hydrophobicity of polyurethane fibers is undesired for tissue engineering. In this work, fibers are fabricated by electrospinning and coated with silk fibroin (SF) for biocompatibility and biologically synthesized silver (Ag) nanoparticles (NPs) for antibacterial activity. The scanning electron microscopy reveals the undistorted morphology and the presence of NPs on fibers. The Fourier transform infrared and thermogravimetric analysis show the successful incorporation of SF and Ag NPs. The water contact angle drops from 101.26±0.2° in pristine to 3.1±0.3° in the hydrothermally treated fibers. The moisture regain from 1.87±0.3% to 6.7±0.4% is observed after 24 h. The mineralization shows the hydroxyapatite NPs in all composites. The large zone of inhibition is observed in the composite, with the Ag NPs equal to 11.5±0.04 mm for Staphylococcus aureus and 18.91±0.02 mm for Escherichia coli. The increased proliferation of HEK 293T cells for 6 days of culture on composite scaffolds compared to the pristine scaffolds is achieved. The cell attachment examinations show successful attachment of cells on fibers and nuclear staining analysis shows the highest proliferation in scaffolds with an intermediate concentration of Ag NPs (10%). This strategy presents a novel improvisation for as‐spun PU fibers that can fabricate wound‐healing biomaterials for tissue engineering.
Bioelectronic Applications of Intrinsically Conductive Polymers
Authors: Gao Xianglin , Bao Yilin , Chen Zhijun , Lu Jipei , Su Tong , Zhang Lei , Ouyang Jianyong 
Published: July 2023

AbstractSince the discovery of conducting polyacetylene in the 1970s, intrinsically conducting polymers (ICPs) have attracted great attention because of their interesting structure, properties, and applications. Notably different from conventional conductors such as metals and doped semiconductors, ICPs have high mechanical flexibility and are light weight. In addition, their properties can be easily tuned by controlling the doping level, modifying the chemical structure, or forming composites with organic or inorganic materials. Their application in bioelectronics is particularly interesting because they have good biocompatibility and good mechanical matching with biological tissues. In this article, the methods to increase the mechanical stretchability of ICPs are first reviewed because high stretchability is often required for bioelectronic applications while pristine ICPs generally have limited stretchability. The application of ICPs as stretchable electrodes for epidermal biopotential detection and neural interfaces is discussed. Then, the employment of ICPs as the electrodes or sensing material of mechanical sensors is reviewed. They also have important application in controllable drug delivery. Last, their applications in the wearable energy harvesting and storage devices including thermoelectric generators and supercapacitors are also covered.
Origami‐Enabled Stretchable Electrodes Based on Parylene Deposition and 3D Printing
Authors: Del Duca Fulvia , Hiendlmeier Lukas , Al Fata Reem , Al Boustani George , Kopic Inola , Peng Hu , De Chiara Beatrice , Nikić Marta , Zurita Francisco , Teshima Tetsuhiko , Wolfrum Bernhard 
Published: July 2023

AbstractThin film electronic devices based on flexible biocompatible substrates are desired in various fields such as implants, soft robotics, and wearables, where stretchability is often necessary. Structure‐enabled stretchability in flexible thin films can be achieved by introducing origami‐inspired folds, thereby storing excess material in the out‐of‐plane direction to unfold upon stress. When using vapor‐deposited substrates such as parylene‐C, folds can be introduced prefabrication using molds patterned in repeated grooves and ridges. Here, this work reports the fabrication and parametrization of 10‐µm‐thick stretchable origami parylene‐C electrodes using 3D printed molds. The molds are printed with a sinusoidal pattern and tunable amplitude and slope, with accurate printing results up to 60° steepness. A 160‐nm‐thick gold layer on top of the folded parylene is patterned via laser ablation following the 3D mold shape. Depending on the design parameters, the resulting electrodes maintain functionality until 40%–100% strain. By 3D printing the molds, this technique can fabricate electrodes with complete control of the designed directions of stretchability in a rapid prototyping approach.
A Molecular Precursor‐Based Copper Antimony Sulfide Photodetector with Enhanced Performance by Silver Doping
Authors: Wang Yarong , Shan Yufeng , Li Wen , Shi Jichao , Hou Jingshan , Zhao Guoying , Dai Ning , Wang Feng , Fang Yongzheng , Liu Yufeng 
Published: July 2023

AbstractTernary copper chalcogenide semiconductors made of copper antimony sulfide (CuSbS2) are promising absorbers for high‐performance photoelectric devices due to their non‐toxic, abundant constituent elements and superior optoelectronic characteristics. However, the presence of a large number of CuSb antisite defects and atomic disorder suppress its performance in photodetection. Herein, a non‐vacuum, facile spin‐coating method based on an organic molecular precursor solution is employed to fabricate the preferable CuSbS2 thin films. With the aid of good adhesion between precursor solution and substrate, compact CuSbS2 thin films are in situ grown on the substrate. Meanwhile, the isoelectronic element of Ag‐doped CuSbS2 thin films can be realized by introducing Ag of varying amounts in the precursor. As a result, the concentration of CuSb defects decreases monotonically as the ratio of Ag/(Ag + Cu) increases from 0% to 5%. Compared with the undoped CuSbS2 device, the 5% Ag‐doped CuSbS2 photodetector achieves the optimum responsibility (R) of 244.48 A W−1, the external quantum efficiency (EQE) of 749.28% and the specific detectivity (D*) of 8.73 × 1012 Jones, which are increased by 76.4, 76.5, and 38.0 times, respectively. This study provides a novel strategy to achieve high‐performance CuSbS2 photodetectors by suppressing the CuSb inversion defects in the Ag‐doped thin film.
Liposomal Enzyme Nanoreactors Based on Nanoconfinement for Efficient Antitumor Therapy
Authors: Wang Ran , Yu Yingjie , Gai Meiyu , Mateos‐Maroto Ana , Morsbach Svenja , Xia Xiang , He Maomao , Fan Jiangli , Peng Xiaojun , Landfester Katharina , Jiang Shuai , Sun Wen 
Published: July 2023

AbstractEnzymatic reactions can consume endogenous nutrients of tumors and produce cytotoxic species and are therefore promising tools for treating malignant tumors. Inspired by nature where enzymes are compartmentalized in membranes to achieve high reaction efficiency and separate biological processes with the environment, we develop liposomal nanoreactors that can perform enzymatic cascade reactions in the aqueous nanoconfinement of liposomes. The nanoreactors effectively inhibited tumor growth in vivo by consuming tumor nutrients (glucose and oxygen) and producing highly cytotoxic hydroxyl radicals (⋅OH). Co‐compartmentalization of glucose oxidase (GOx) and horseradish peroxidase (HRP) in liposomes could increase local concentration of the intermediate product hydrogen peroxide (H2O2) as well as the acidity due to the generation of gluconic acid by GOx. Both H2O2 and acidity accelerate the second‐step reaction by HRP, hence improving the overall efficiency of the cascade reaction. The biomimetic compartmentalization of enzymatic tandem reactions in biocompatible liposomes provides a promising direction for developing catalytic nanomedicines in antitumor therapy.
Preparation and properties of high vinyl polybutadiene/sepiolite nanocomposites using a sepiolite immobilized Mo‐based catalyst
Authors: Deng Qian , Wang Xiaotong , Fu Yuan , Li Shengkai , Liu Jinhui , Hua Jing 
Published: July 2023

AbstractThe preparation of polymer/nanoclay nanocomposite has received much attention in recent years from both academic researchers and industry. The addition of nanoclay in polymer matrix could prepare material with improved performance and reduced cost. However, nanocaly is easy to agglomerate resulting in poor dispersion in the matrix. In this work, we proposed the immobilized catalyst prepared by coordination between molybdenum pentachloride (MoCl5) and hydroxyl groups on the nano sepiolite. The obtained sepiolite immobilized catalyst was used for the in situ polymerization of butadiene. The butadiene monomers were diffused into the tiny holes and channels of the sepiolite and sepiolite dispersed uniformly by the effect of in situ polymerization. The immobilization of sepiolite improves the dispersity of MoCl5 during polymerization and further enhances the activity of the catalyst. The coordination between sepiolite and MoCl5 results in a slight drop in vinyl content, and the molecular weight distribution remain unchanged. The flame retardant property of the nanocomposite was further investigated, and the result shows that the addition of sepiolite could increase the Oxygen index. This novel composite with well‐dispersed sepiolite and high content of vinyl can be further applied to flame‐retardant elastic materials.
Finite element modeling of programmable liquid crystal elastomer plates and its application in text display
Authors: Huang Kezhen , Wang Kaifa , Wang Baolin 
Published: July 2023

AbstractLiquid crystal elastomers (LCEs) have wide and potential applications in artificial muscles, soft robots, biomedical devices, and so on. On the application of LCE plate in text display, different from others' work where specially shaped ultraviolet (UV) lighting is used, in this paper, the programmable deformation of LCE plates with arbitrary liquid crystal orientation subjected to uniform light illumination is investigated. A photomechanical coupling finite element method (FEM) is developed, in which the impact of the shear strains induced by light is taken into account. Inspired by the FEM, the LCE plate is divided into finite small regions. By altering the liquid crystal orientation of each region in the LCE plate, the ability to generate 24 letters and 10 numbers through light‐induced deformations is demonstrated. Matrixes of the liquid crystal orientation corresponding to each letter and number are provided. This work indicates that it is possible for blind people to read text information by touching the deformed LCE plate.
First Exclusive Stereo‐ and Regioselective Preparation of 5‐Arylimino‐1,3,4‐Selenadiazole Derivatives: Synthesis, NMR analysis, and Computational Studies
Authors: Moussa Ziad , Perez Paz Alejandro , Khalaf Mohamed A. , Judeh Zaher M. A. , Alzamly Ahmed , Samadi Abdelouahid , Al‐Fahemi Jabir H. , Tatina Madhu Babu , Al‐Masri Harbi Tomah , Jassas Rabab S. , Ahmed Saleh A. 
Published: July 2023

AbstractIsoselenocyanates are valuable coupling partners required for preparing key chemical intermediates and biologically active molecules in an accelerated and effective way. Likewise, (Z)‐2‐oxo‐N‐phenylpropanehydrazonoyl chlorides have been employed in numerous one‐step heteroannulation reactions to assemble the structural core of several various kinds of heterocyclic compounds. Here, we describe the inverse electron demand 1,3‐dipolar cycloaddition reaction of isoselenocyanates with a variety of substituted (Z)‐2‐oxo‐N‐phenylpropanehydrazonoyl chlorides to generate, regioselectively and stereoselectively, a series of 5‐arylimino‐1,3,4‐selenadiazole derivatives comprising a multitude of functional groups on both aryl rings. The synthetic method features gentle room‐temperature conditions, wide substrate scope, and good to high reaction yields. The selenadiazoles were separated by gravity filtration in all instances and chemical structures were validated by multinuclear NMR spectroscopy and high accuracy mass spectral measurements. First conclusive molecular structure elucidation of the observed 5‐arylimino‐selenadiazole regioisomer was verified by single‐crystal X‐ray diffraction analysis. Crystal‐structure measurement was successfully carried out on (Z)‐1‐(4‐(4‐iodophenyl)‐5‐(p‐tolylimino)‐4,5‐dihydro‐1,3,4‐selenadiazol‐2‐yl)ethan‐1‐one and (Z)‐1‐(5‐((4‐methoxyphenyl)imino)‐4‐(4‐(methylthio)phenyl)‐4,5‐dihydro‐1,3,4‐selenadiazol‐2‐yl)ethan‐1‐one. Likewise, the (Z)‐geometry of the hydrazonoyl chloride reactant was proven by X‐ray diffraction studies. As representative examples, crystal‐structure determination was carried out on (Z)‐2‐oxo‐N‐phenylpropanehydrazonoyl chloride and (Z)‐N‐(3,5‐bis(trifluoromethyl)phenyl)‐2‐oxopropanehydrazonoyl chloride. Density functional theory calculations at the B3LYP‐D4/def2‐TZVP level were conducted to support the noted experimental findings and suggested mechanism.
No evidence for high inflexible precision of prediction errors in autism during lexical processing
Authors: Howard Philippa L. , Pagán Ascensión 
Published: July 2023

AbstractResearch has shown that information processing differences associated with autism could impact on language and literacy development. This study tested an approach to autistic cognition that suggests learning occurs via prediction errors, and autistic people have very precise and inflexible predictions that result in more sensitivity to meaningless signal errors than non‐autistic readers. We used this theoretical background to investigate whether differences in prediction coding influence how orthographic (Experiment 1) and semantic information (Experiment 2) is processed by autistic readers. Experiment 1 used a lexical decision task to test whether letter position information was processed less flexibly by autistic than non‐autistic readers. Three types of letter strings: words, transposed letter and substituted letters nonwords were presented. Experiment 2 used a semantic relatedness task to test whether autistic readers processed words with high and low semantic diversity differently to non‐autistic readers. Results showed similar transposed letter and semantic diversity effects for all readers; indicating that orthographic and semantic information are processed similarly by autistic and non‐autistic readers; and therefore, differences in prediction coding were not evident for these lexical processing tasks.
Preoperative resting‐state microstate as a marker for chronic pain after breast cancer surgery
Authors: Li Yaru , Wang Lu , Han Qiaoyu , Han Qi , Jiang Luyang , Wu Yaqing , Feng Yi 
Published: July 2023

AbstractIntroductionChronic postoperative pain poses challenges, emphasizing the importance of accurately predicting pain in advance. Generally, pain perception is associated with the temporal dynamics of the brain, which can be represented by microstates. Specifically, microstates are transient and patterned brain topographies formed by temporally overlapping and spatially synchronized oscillatory activities. Consequently, by characterizing brain activity, microstates offer valuable insights into pain perception.MethodsIn this prospective study, 66 female patients undergoing breast cancer surgery were included. Their preoperative resting‐state electroencephalography (EEG) was recorded. Preoperative resting‐state EEG was recorded and four specific brain microstates (labeled as A, B, C, and D) were extracted. Temporal characteristics were then analyzed from these microstates. Patients were classified into two groups based on their Numerical Rating Scale (NRS) scores at three months postoperatively. Those with NRS scores ranging from 4 to 10 were classified as the high pain group, while patients with NRS ranging from 0 to 3 were classified as the lowpain group. Statistical analyses were performed to compare the microstate characteristics between these two groups.ResultsTwenty‐one patients (32%) were classified as the high pain group and forty‐five (68%) as the low‐pain group. The occurrence and coverage of microstate C were significantly higher in the high pain group. Additionally, there were significant differences in the microstates transitions between the two groups. Furthermore, the study revealed a positive correlation between the coverage of microstate C and the NRS.ConclusionsPreoperative resting‐state microstate features have shown correlations with postoperative pain. This study presents a novel and advanced perspective on the potential of microstates as a marker for postoperative pain.
Sustainable transitions in the surfing sector. The role of risk and branding
Authors: Borne Gregory 
Published: July 2023

AbstractThis paper explores a theoretical and empirical discussion of the ability of business form a particular sector to transition towards sustainability. The paper contextualises the discussion within the theoretical framework of a ‘Risk Society’ as outlined by Ulrich Beck. In particular, the paper highlights the relationship between sustainable development, and what Beck describes as the emergence of an emancipatory catastrophism. This theoretical framework is then applied to a novel approach for exploring sustainability through the process of branding ultimately highlighting an industry's receptiveness to the United Nations Sustainable Development Goals. Uniquely, this paper challenges and expands on the narrative of branding as a discursive process that moves beyond a narrow marketing framework. Using a mixed methods approach of in‐depth observation, interviews and surveys, the paper focuses on a case study of the largest lifestyle retailer in the surf skate and snow sector. The empirical research is applied both within the case study company itself and over 300 brands in the surf skate and snow sector. Results point to a receptiveness to embedding the sustainable development goals in business models whilst highlighting the challenges that exist from both a business operation and resourcing perspective through to external factors. Furthermore, results highlight the disparity between internal business processes and the process branding. A typology is presented that highlights the relationship between business, the sustainable development goals and theoretical debates.
First things first: Unselfconscious corporate virtuosity and corporate performance
Authors: Gould Anthony M. , Joullié Jean‐Etienne , Gould Kate 
Published: July 2023

AbstractThis article investigates the relationship between unselfconscious corporate virtuosity and corporate performance using a novel methodology. It contends that honesty in presenting CSR activities is a proxy for corporate virtuosity and that syntheticity of language indexes unselfconscious honesty in corporate reporting. The study's research question is: Is there evidence that being more corporately ethical in the absence of concern about being so perceived enhances hardcore measures of organisational performance? To answer this question, a linguistic analysis of sustainability reports of firms operating in the Mining, Crude Oil Production Industry is undertaken to reveal that firms' financial performance varies as a function of a particular kind of straightforward language use in corporate reporting. This exercise provides evidence that unselfconscious corporate virtuosity is associated with better corporate financial performance. Implications for practice of this finding are explored.
Metal‐organic framework‐based single‐atom electro‐/photocatalysts: Synthesis, energy applications, and opportunities
Authors: Ahmad Munir , Chen Jiahui , Liu Jianwen , Zhang Yan , Song Zhongxin , Afzal Shahzad , Raza Waseem , Zeb Liaqat , Mehmood Andleeb , Hussain Arshad , Zhang Jiujun , Fu Xian‐Zhu , Luo Jing‐Li 
Published: July 2023

AbstractSingle‐atom catalysts (SACs) have gained substantial attention because of their exceptional catalytic properties. However, the high surface energy limits their synthesis, thus creating significant challenges for further development. In the last few years, metal–organic frameworks (MOFs) have received significant consideration as ideal candidates for synthesizing SACs due to their tailorable chemistry, tunable morphologies, high porosity, and chemical/thermal stability. From this perspective, this review thoroughly summarizes the previously reported methods and possible future approaches for constructing MOF‐based (MOF‐derived‐supported and MOF‐supported) SACs. Then, MOF‐based SAC's identification techniques are briefly assessed to understand their coordination environments, local electronic structures, spatial distributions, and catalytic/electrochemical reaction mechanisms. This review systematically highlights several photocatalytic and electrocatalytic applications of MOF‐based SACs for energy conversion and storage, including hydrogen evolution reactions, oxygen evolution reactions, O2/CO2/N2 reduction reactions, fuel cells, and rechargeable batteries. Some light is also shed on the future development of this highly exciting field by highlighting the advantages and limitations of MOF‐based SACs.
Self‐Diffusion of a Chemical Warfare Agent Simulant and Water in Nafion by Pulsed Field Gradient NMR
Authors: Trusty Blake , Fang Junchuan , Angelopoulos Anastasios , Vasenkov Sergey 
Published: July 2023

AbstractPulsed field gradient (PFG) NMR at high magnetic field was used to study microscopic diffusion of dimethyl methyl phosphonate (DMMP), a common chemical warfare agent (CWA) simulant, and water in Nafion membranes. PFG NMR measurements were performed for a broad range of molecular displacements. The self‐diffusivities were measured as a function of the DMMP concentration for several fixed water concentrations. The measured data suggest that DMMP and water diffuse in different regions of Nafion. While water mostly diffuses in hydrophilic regions of the membrane, viz. water channels, DMMP diffusion is mostly limited to interfacial perfluoroether regions between these water channels and the semi‐crystalline matrix.
Diastereoselective Construction of α‐Fluoroalkyl Cycloalkanols via Radical Alkylation of α‐Fluoroalkyl Ketones†
Authors: Liu Yi , Li Ji , Zhou Yulu , Zheng Hanliang , Shen Zhenlu , Zhu Gangguo 
Published: July 2023

Comprehensive Summaryα‐Fluoroalkyl (Rf) alcohols are privileged motifs in drugs and pharmaceutically active compounds. As such, it is highly desirable to develop efficient methods for assembling these scaffolds. Herein, a visible‐light‐induced cascade radical cyclization of alkenyl fluoroalkyl ketones is developed, producing a variety of decorate α‐Rf cycloalkanols in promising yields with up to >20 : 1 dr selectivity. A radical chain mechanism involving an intramolecular radical addition to the α‐Rf carbonyl group and a subsequent intermolecular hydrogen atom transfer (HAT) has been proposed. Density functional theory (DFT) calculations indicate that a fluorine effect contributes to the radical addition to carbonyls by lowering the π* (C=O) orbital energy of CORf and energy barrier of the HAT between alkoxy radicals and THF, which may be valuable for controllable transformations of fluorinated molecules.