bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multi‐stimulus Room Temperature Phosphorescent Polymers Sensitive to Light and Acid cyclically with Energy Transfer
Authors: Yang Yuqi , Li Aisen , Yang Yujie , Wang Jiaqiang , Chen Yi , Yang Kun , Tang Ben Zhong , Li Zhen 
Published: August 2023

AbstractThe stimulus‐responsive room temperature phosphorescent (RTP) materials have endowed wide potential applications. In this work, by introducing naphthalene and spiropyran (SP) into polyacrylamide as the energy donor and acceptor respectively, a new kind of brilliant dynamic color‐tunable amorphous copolymers were prepared with good stability and processibility, and afterglow emissions from green to orange in response to the stimulus of photo or acid, thanks to multi‐responsibility of SP and the energy transfer between naphthalene and SP. In addition to the deeply exploring of the inherent mechanism, these copolymers have been successfully applied in dynamically controllable applications in information protection and delivery.
Continuous Flow Electrochemistry Enables Practical and Site‐Selective C−H Oxidation
Authors: Chen Tian‐Sheng , Long Hao , Gao Yuxing , Xu Hai‐Chao 
Published: August 2023

AbstractThe selective oxygenation of ubiquitous C(sp3)−H bonds remains a highly sought‐after method in both academia and the chemical industry for constructing functionalized organic molecules. However, it is extremely challenging to selectively oxidize a certain C(sp3)−H bond to afford alcohols due to the presence of multiple C(sp3)−H bonds with similar strength and steric environment in organic molecules, and the alcohol products being prone to further oxidation. Herein, we present a practical and cost‐efficient electrochemical method for the highly selective monooxygenation of benzylic C(sp3)−H bonds using continuous flow reactors. The electrochemical reactions produce trifluoroacetate esters that are resistant to further oxidation but undergo facile hydrolysis during aqueous workup to form benzylic alcohols. The method exhibits a broad scope and exceptional site selectivity and requires no catalysts or chemical oxidants. Furthermore, the electrochemical method demonstrates excellent scalability by producing 115 g of one of the alcohol products. The high site selectivity of the electrochemical method originates from its unique mechanism to cleave benzylic C(sp3)−H bonds through sequential electron/proton transfer, rather than the commonly employed hydrogen atom transfer (HAT).
A Nitro‐Modified Luminescent Hydrogen‐Bonded Organic Framework for Non‐Contact and High‐Contrast Sensing of Aromatic Amines
Authors: Huang Qiuyi , Otake Ken‐ichi , Kitagawa Susumu 
Published: August 2023

AbstractThe global demand for intelligent sensing of aromatic amines has consistently increased due to concerns about health and the environment. Efforts to improve material design and understand mechanisms have been made, but highly efficient non‐contact sensing with host–guest structures remains a challenge. Herein, we report the first example of non‐contact, high‐contrast sensing of aromatic amines in a hydrogen‐bonded organic framework (HOF) based on a nitro‐modified stereo building block. Direct observation of binding interactions of trapped amines is achieved, leading to charge separation‐induced emission quenching between host and guests. Non‐contact sensing of aniline and diphenylamine is realized with quenching efficiencies up to 91.7 % and 97.0 %, which shows potential for versatile applications. This work provides an inspiring avenue to engineer multifunctional HOFs via co‐crystal preparations, thus enriching applications of porous materials with explicit mechanisms.
Few‐Layer Fullerene Network for Photocatalytic Pure Water Splitting into H2 and H2O2
Authors: Wang Taotao , Zhang Li , Wu Jinbao , Chen Muqing , Yang Shangfeng , Lu Yalin , Du Pingwu 
Published: August 2023

AbstractA few‐layer fullerene network possesses several advantageous characteristics, including a large surface area, abundant active sites, high charge mobility, and an appropriate band gap and band edge for solar water splitting. Herein, we report for the first time that the few‐layer fullerene network shows interesting photocatalytic performance in pure water splitting into H2 and H2O2 in the absence of any sacrificial reagents. Under optimal conditions, the H2 and H2O2 evolution rates can reach 91 and 116 μmol g−1 h−1, respectively, with good stability. This work demonstrates the novel application of the few‐layer fullerene network in the field of energy conversion.
In situ Observation of Evolving H2 and Solid Electrolyte Interphase Development at Potassium Insertion Materials within Highly Concentrated Aqueous Electrolytes
Authors: Gossage Zachary T. , Ito Nanako , Hosaka Tomooki , Tatara Ryoichi , Komaba Shinichi 
Published: August 2023

AbstractThe solid‐electrolyte interphase (SEI) is key to stable, high voltage lithium‐ion batteries (LIBs) as a protective barrier that prevents electrolyte decomposition. The SEI is thought to play a similar role in highly concentrated water‐in‐salt electrolytes (WISEs) for emerging aqueous batteries, but its properties remain unknown. In this work, we utilized advanced scanning electrochemical microscopy (SECM) and operando electrochemical mass spectrometry (OEMS) techniques to gain deeper insight into the SEI that occurs within highly concentrated WISEs. As a model, we focus on a 55 mol/kg K(FSA)0.6(OTf)0.4 electrolyte and a 3,4,9,10‐perylenetetracarboxylic diimide negative electrode. For the first time, our work showed distinctly passivating structures with slow apparent electron transfer rates alike to the SEI found in LIBs. In situ analyses indicated stable passivating structures when PTCDI was stepped to low potentials (≈−1.3 V vs. Ag/AgCl). However, the observed SEI was discontinuous at the surface and H2 evolution occurred as the electrode reached more extreme potentials. OEMS measurements further confirmed a shift in the evolution of detectable H2 from −0.9 V to <−1.4 V vs. Ag/AgCl when changing from dilute to concentrated electrolytes. In all, our work shows a combined approach of traditional battery measurements with in situ analyses for improving characterization of other unknown SEI structures.
Zwitterionic Polymeric Sulfur Ylides with Minimal Charge Separation Open a New Generation of Antifouling and Bactericidal Materials**
Authors: Berking Bela B. , Poulladofonou Georgia , Karagrigoriou Dimitrios , Wilson Daniela A. , Neumann Kevin 
Published: August 2023

AbstractZwitterionic polymers are widely employed hydrophilic building blocks for antifouling coatings with numerous applications across a wide range of fields, including but not limited to biomedical science, drug delivery and nanotechnology. Zwitterionic polymers are considered as an attractive alternative to polyethylene glycol because of their biocompatibility and effectiveness to prevent formation of biofilms. To this end, zwitterionic polymers are classified in two categories, namely polybetaines and polyampholytes. Yet, despite a fundamental interest to drive the development of new antifouling materials, the chemical composition of zwitterionic polymer remains severely limited. Here, we show that poly(sulfur ylides) that belong to the largely overlooked class of poly(ylides), effectively prevent the formation of biofilms from pathogenic bacteria. While surface energy analysis reveals strong hydrogen‐bond acceptor capabilities of poly(sulfur ylide), membrane damage of pathogenic bacteria induced by poly(sulfur ylides) indicates toxicity towards bacteria while not affecting eucaryotic cells. Such synergistic effect of poly(sulfur ylides) offers distinct advantages over polyethylene glycol when designing new antifouling materials. We expect that our findings will pave the way for the development of a range of ylide‐based materials with antifouling properties that have yet to be explored, opening up new directions at the interface of chemistry, biology, and material science.
Toward Magneto‐Optical Cryogenic Thermometers with High Sensitivity: A Magnetic Circular Dichroism Based Thermometric Approach
Authors: Gálico Diogo Alves , Murugesu Muralee 
Published: August 2023

AbstractRemote temperature probing at the cryogenic range is of utmost importance for the advancement of future quantum technologies. Despite the notable achievements in luminescent thermometers, accurately measuring temperatures below 10 K remains a challenging endeavor. In this study, we propose a novel magneto‐optical thermometric approach based on the magnetic‐circular dichroism (MCD) technique, which offers unprecedented capabilities for meticulous temperature variation analysis at cryogenic temperatures. The inherent temperature sensitivity of the MCD C‐term, in conjunction with both positive and negative signals, enables highly sensitive magneto‐optical temperature probing. Additionally, a groundbreaking relative thermal sensitivity value of 95.3 % K−1 at 2.54 K can be achieved using a mononuclear lanthanide complex, [[Ho(acac)3(phen)], in the presence of a 0.25 T applied magnetic field and using a combination of multiparametric thermal read‐out with multiple regression. These results unequivocally demonstrate the viability and effectiveness of our methodology for cryogenic temperature sensing.
Effect of supercooling phenomenon on liquid freezing in cylindrical vessel
Authors: Nakazaki Taiga , Akimaru Yuichiro , Iyota Hiroyuki , Masuda Hayato 
Published: August 2023

AbstractFreezing has been used to extend the shelf life of food products. In freezing, the large ice crystals which are unfavorable for the texture and quality of food are mainly generated during a solid–liquid coexistence phase. It is well known the ice crystals produced after undergoing a supercooling state were finer than those produced without supercooling. This implies that the supercooling phenomenon affects the solid–liquid coexistence time during freezing. Therefore, in this study, the effect of the supercooling phenomenon on the solid–liquid coexistence time was investigated using a cylindrical vessel. The experimental results indicated that the solid–liquid coexistence time decreased with increasing degrees of supercooling. This result suggests that increasing the degree of supercooling is effective for producing finer ice crystals. Generally, the temperature distribution is uniform to promote the supercooled state. Thus, rotational motion of the vessel with a periodical switching the rotational direction every 180° clockwise and counter‐clockwise was imposed to relax the temperature distribution in the vessel. Below a certain rotational speed, it was observed that supercooling deepened; above that, multiple instances of supercooling release were observed owing to the inversion.
Preparation of matte, abrasion‐resistant and anti‐fouling waterborneUV‐curable coating and its application in electronic product shells
Authors: Jiang Guiyou , Wu Song , Yan Wei , Tian Tian , Li Yang , Liao Youwei , Yang Yan 
Published: August 2023

AbstractThis paper presents a viable coating design for the production of waterborne coatings using PUA, Silicone‐modified‐PUA, Al‐SiO2, and PTFE as key ingredients. The coatings are prepared through an air compression spraying technique followed by a photocuring procedure. The resulting PUA/Silicone‐modified‐PUA/Al‐SiO2/PTFE coating exhibits exceptional properties including high hardness, low surface tension, and a low coefficient of friction. Experimental findings reveal noteworthy characteristics of the coating. It possesses a gloss level of 4–6°, a hardness of 492.69 N/mm, an elasticity modulus of 11469.94 MPa, a surface roughness of 0.87 μm, a dynamic coefficient of friction of 0.125 μN, and a surface tension of 0.4967 mN/m. To assess its performance, the coating underwent rigorous tests such as the CS‐5 Wool Touchpad Shinning Friction test with a 200 g load over 250,000 cycles. It exhibited minimal changes in gloss (≤2°) and color difference (∆E ≤ 0.75). Additionally, the CS‐10 abrasive head Optical Surface Taber Abrasion Resistance test was conducted using a 500 g load for 10 cycles, resulting in a Class 1 rating, and after 100 cycles, it achieved a Class 3 rating. This demonstrates its remarkable resistance to tribological environments, enduring tapping, touching, and scraping by fingers over extended periods.
Preparation of a novel bio‐based ferric flame retardant for enhancing flame retardancy, mechanical properties, and heat resistance of polylactic acid
Authors: Qin Wangping , Zhang Ruike , Fu Yan , Chang Jie 
Published: August 2023

AbstractA fully bio‐based flame retardant PNF was prepared based on phytic acid, nicotinamide and iron salts in aqueous solution by a green and convenient ionic reaction, and then blended with polylactic acid (PLA) to improve its properties. The results demonstrated that the PLA composite containing 4 wt% PNF(PLA/4PNF) had a flame retardancy rating of UL 94 V‐0 and an oxygen index of 25.3%. In addition, the peak heat release rate (PHRR) and total heat release (THR) of PLA/4PNF were reduced by 27.0% and 27.7%, respectively, compared to pure PLA, and the flame retardancy index (FRI) was increased by 210%, demonstrating that PNF could effectively improve the flame retardancy of PLA. Moreover, the thermal conductivity of PLA/4PNF increased by 284% compared to pure PLA, making the material require higher heat to reach the combustion state. DSC and mechanical property tests showed that PLA/4PNF had 31.3% higher crystallinity, 5.2% higher heat deflection temperature and 10.0% higher flexural modulus compared to pure PLA, indicating that PNF effectively improved the mechanical properties and heat resistance of PLA. The research in this article broadens the application of bio‐based flame‐retardant PLA in the field of electronic appliances and office equipment.
Extruded polylactide bead foams using anhydrous supercritical CO2 extrusion foaming
Authors: Su Yaozhuo , Huang Pengke , Sun Jie , Chen Jiali , Zheng Hao , Luo Haibin , Chong Yunkai , Zhao Yongqing , Wu Fei , Zheng Wenge 
Published: August 2023

AbstractPolylactic acid (PLA) is a bio‐based and biodegradable polymer. It is challenging to prepare PLA bead foams at a large scale in an efficient manner. Herein, beads of modified PLA are foamed by one‐step anhydrous supercritical CO2 extrusion. This dramatically shortens the production time, prevents the PLA from pyrohydrolysis, and avoids wastewater generation. The melt strength of the PLA is increased from 0.8 to 16.7 cN using a chain extender. The morphologies and microstructures of bead foams are analyzed. In the case of the PLA bead foam obtained by extrusion foaming combined with wind‐cooling pelletizing technology, the expansion ratio is higher than 13, the pore morphology is typical cellular structures, and the surface is glossy. The advantages and shortcomings of the PLA beads are also investigated. It is beneficial to promote the continuous preparation of PLA bead foams and other polymer beads like PS, and PP, which can be used in the fields of green packing, sound absorption, cold‐chain logistics, and so forth.
Fabrication of mixed matrix polyphenylsulfone‐polysulfone blend membranes incorporated with Nickel/Hydrazine@silica core‐shell nanoparticles using VIPS‐NIPS method for efficient dye rejection
Authors: Mahdavi Hossein , Khademi Fatemeh , Heidari Ali Akbar , Karami Milad 
Published: August 2023

AbstractThe dye‐water treatment using nanofiltration membranes is still an important issue. In this work, we have reported the fabrication of silica nanoparticles using a robust approach with well‐controlled aspect ratios. Accordingly, we first fabricated hydrophilic Nickel/Hydrazine@silica core‐shell nanoparticles, in which Ni nanoparticles were coated with a shell of silica. Then, different content of the prepared nanoparticles were incorporated into polyphenylsulfone/ polysulfone membrane matrixes in order to enhance the membranes hydrophilicity. The pristine and mixed matrix membranes (MMMs) were fabricated via the vapor‐induced phase separation coupled with non‐solvent‐induced phase separation (VIPS‐NIPS) approach, where Dioxane was employed as the co‐solvent. The dye rejection performance of the prepared membranes was evaluated for aqueous solutions of a variety of dyes, including direct yellow (DY), crystal violet (CV), methyl green (MG), and methylene blue (MB). Accordingly, it was indicated that the membrane with 0.12 wt.% of nanoparticles could provide an outstanding rejection performance as high as 99.7, 99.3, 98.4 and 97 for DY, MG, CV and MB, respectively, a superb water flux (6.1 L/m2 h bar), a great long‐term durability and an excellent antifouling performance.
Pad printing inks based on reduced graphene oxide and various cellulose binders: Rheological properties, printability and application in electrochemical sensors
Authors: Pavličková Michaela , Đurđić Slađana , Hatala Michal , Stanković Dalibor , Švorc Ľubomír , Veteška Peter , Gemeiner Pavol 
Published: August 2023

AbstractPad printing is not a widely used printing technique, but it offers the possibility of a simple, fast, and low‐cost production of various high‐resolution electrode structures. Here, the pad‐printed reduced graphene oxide (rGO) electrodes are prepared from pad‐printable inks containing rGO powder and different concentrations of two cellulose‐based polymers: ethylcellulose and cellulose acetate butyrate. The applicability of rGO inks for pad printing is analyzed according to their rheological parameters and printability. Based on viscosity, storage (G′) and loss modulus (G″) values, 10 wt% of ethylcellulose and 15 wt% of cellulose acetate butyrate appear to be most suitable for pad printing. The effect of polymer concentration on rGO electrodes homogeneity and mechanical stability is also evaluated. Cyclic voltammetry measurements for [Fe(CN)6]3−/4− redox system are performed with rGO/cellulose inks pad‐printed onto transparent conductive oxide substrates with the best results when using ethylcellulose as a binder. Finally, the square‐wave voltammetric method assesses the viability of rGO electrodes for the fast detection of ascorbic acid (detection limit of 15 μM) coupled with satisfactory precision (4.5%, n = 5) and long‐term stability during electrochemical measurements.
Topological Phases in Magnonics
Authors: Zhuo Fengjun , Kang Jian , Manchon Aurélien , Cheng Zhenxiang 
Published: August 2023

AbstractMagnonics or magnon spintronics is an emerging field focusing on generating, detecting, and manipulating magnons. As charge‐neutral quasi‐particles, magnons are promising information carriers because of their low energy dissipation and long coherence length. In the past decade, topological phases in magnonics have attracted intensive attention due to their fundamental importance in condensed‐matter physics and potential applications of spintronic devices. In this review, we mainly focus on recent progress in topological magnonics, such as the Hall effect of magnons, magnon Chern insulators, topological magnon semimetals, etc. In addition, the evidence supporting topological phases in magnonics and candidate materials are also discussed and summarized. The aim of this review is to provide readers with a comprehensive and systematic understanding of the recent developments in topological magnonics.
Comparison‐specific preferences: The attentional dilution effect for delay and risk
Authors: Read Daniel , McDonald Rebecca , Cubitt Robin 
Published: August 2023

AbstractIn cross‐modal decisions, the options differ on many attributes, and in uni‐modal decisions, they differ on few. We supply new theory and data to understand how discounting for both delay and risk differs between cross‐modal and uni‐modal decisions. We propose the attentional dilution effect in decision making in which (a) allocation of limited attention to an attribute determines that attribute's decision weight and (b) the attention an attribute receives is increasing in the difference between options on that attribute and decreasing in the number of other attributes that differ between options. We introduce the random order delayed compensation method and conduct two experiments focusing on delayed and risky receipt of consumer goods. Consistent with the attentional dilution effect, we find that in this domain, patience and risk tolerance are generally higher in cross‐modal than uni‐modal decisions. We suggest that, since many real‐world choices are cross‐modal, people may be more patient and risk‐tolerant in their everyday life than is suggested by standard lab experiments.
Circulation of Coronavirus Images: Helping Social Distancing?
Authors: Bock von Wülfingen Bettina 
Published: August 2023

AbstractAs soon as the SARS‐Cov2 disease was recognized by experts to potentially cause a serious pandemic, a three dimensional diagrammatic image of the virus, colored in strong red, conquered public media globally.This study confronts this iconic virus image with a historic image analysis of 33,000 biomedical articles on coronaviruses published between 1968–2020 and interviews with some of their authors.Only a small fraction of scientific virus publications entail images of the complete virus. Red as an alarm color is not used at all by scientists who don't aim for a non‐scientific public.Circulation in this case concerns the movement of iconic images from a scientific context into a general public. On the basis of hps‐studies on scientific diagrams and especially on color use in scientific diagrams to convey specific messages in public, the paper discusses the role of the claim of public corona‐virus diagram as “scientific.”It points at relevant differences between most frequent scientific corona‐virus images and the diagrammatic image used in public. Both author‐ and readerships (in science and public) follow contrasting aims and values. Thus, the images meet non‐expert readers for whom the images entail very different – and potentially unintended – meanings then to virus experts.
AUXIN RESPONSE FACTOR protein accumulation and function
Authors: Jing Hongwei , Strader Lucia C. 
Published: August 2023

AbstractAuxin is a key regulator of plant developmental processes. Its effects on transcription are mediated by the AUXIN RESPONSE FACTOR (ARF) family of transcription factors. ARFs tightly control specific auxin responses necessary for proper plant growth and development. Recent research has revealed that regulated ARF protein accumulation and ARF nucleo‐cytoplasmic partitioning can determine auxin transcriptional outputs. In this review, we explore these recent findings and consider the potential for regulated ARF accumulation in driving auxin responses in plants.
Suicide gene‐enabled cell therapy: A novel approach to scalable human pluripotent stem cell quality control
Authors: Gysel Emilie , Larijani Leila , Kallos Michael S. , Krawetz Roman J. 
Published: August 2023

AbstractThere are an increasing number of cell therapy approaches being studied and employed world‐wide. An emerging area in this field is the use of human pluripotent stem cell (hPSC) products for the treatment of injuries/diseases that cannot be effectively managed through current approaches. However, as with any cell therapy, vast numbers of functional and safe cells are required. Bioreactors provide an attractive avenue to generate clinically relevant cell numbers with decreased labour and decreased batch to batch variation. Yet, current methods of performing quality control are not readily scalable to the cell densities produced during bioreactor scale‐up. One potential solution is the application of inducible/controllable suicide genes that can trigger cell death in unwanted cell types. These types of approaches have been demonstrated to increase the quality and safety of the resultant cell products. In this review, we will provide background on these approaches and how they could be used together with bioreactor technology to create effective bioprocesses for the generation of high quality and safe hPSCs for use in regenerative medicine approaches.