bluuebunny/crossref_metadata_2025_split huggingface dataset:
An Interesting Functional Phase Change Material VO2: Response to Multivariate Control and Extensive Applications in Optics and Electronics
Authors: Liu Yu , Liu Anqi , Chai Xiaomei , Yang Yi , Lu Min , Bai Xue , Chen Yongyi , Zhang Yu 
Published: December 2023

AbstractUnder physical conditions such as TC = 68 °C, Vanadium dioxide (VO2) undergoes a reversible transformation from a monoclinic phase to a tetragonal rutile phase. This transformation is accompanied by a series of changes in physical properties, including transmittance, conductivity, and refractive index, which make it an excellent functional material. Based on this, VO2 has been extensively researched and applied in the fields of electronics and optics, yielding remarkable results and making it a hot research material. This paper reviews the phase transition mechanisms and optical/electrical properties of VO2, as well as its phase transition hysteresis. From the application perspective, this paper summarizes the modulation content under various external excitations and the element doping effects. Finally, this paper summarizes the classic VO2‐based devices, and points out the development direction and potential of VO2 in optics and electronics. This review provides a systematic summary of VO2, which is useful for its practical applications.
Methane fermentation to methanol (biological gas‐to‐liquid process) usingMethylotuvimicrobium buryatense5GB1C
Authors: Priyadarsini Aradhana , Khaire Kaustubh Chandrakant , Barbora Lepakshi , Maitra Subhrangsu Sundar , Moholkar Vijayanand Suryakant 
Published: December 2023

AbstractMethanol is a potential alternate liquid transportation fuel for blending with gasoline. Biochemical conversion of methane to methanol is a green process for methanol production. This paper reports biochemical methanol production using type I γ‐proteobacteriaMethylotuvimicrobium buryatense, which has particular importance from the viewpoint of scalable biological gas to liquid processes for industrial application. A statistical design of experiments (at the serum bottle level) was used to optimize fermentation parameters. Enhancement in methanol accumulation was attempted using methanol dehydrogenase inhibitors. This was followed by a validation experiment run in a bioreactor at optimum conditions. At optimum conditions (pH = 7, phosphate concentration = 140 mM, temperature = 25°C) and optical density (600 nm) of 0.3, a methanol titer of 8.54 mM was achieved in 24 h (methane conversion = 20.8%). The addition of a methanol dehydrogenase inhibitor (0.5 mM Ethylenediaminetetraacetic acid) enhanced the methanol concentration to 10.37 mM. Experiments in a 3.7 L bioreactor using 1.68 bar headspace pressure and optical density (600 nm) of 0.1 yielded 23.7 mM methanol in 24 h (methane conversion = 47.8%). The methanol titers obtained usingM. buryatense5GB1C in 24 h fermentation are significantly higher than several previously reported methanotrophs. These results demonstrate the potential ofM. buryatense5GB1C for the biochemical synthesis of methanol.
New homoleptic imine derivative of lawsone and its metal complexes: Preparation, characterization, in vitro and in silico biological investigation
Authors: Sheela Selvaraj Freeda Selva , Kumar Karuppiah Arunsunai , Raman Natarajan 
Published: December 2023

In this article, a Schiff base derivative has been prepared using 2‐hydroxy‐1,4‐naphthoquinone and 3‐amino‐1,2,4‐triazole, and consecutively, four metal complexes (Co(II), Ni(II), Cu(II) and Zn(II)) have been synthesized using this Schiff base derivative as precursor ligand. Characterization of the synthesized compounds are done by employing spectral techniques such as UV–vis, infrared (IR), nuclear magnetic resonance (NMR), mass and electron paramagnetic resonance (EPR). All these methods establish the existence of imine group and the octahedral geometry of the complexes. The synthesized complexes are evaluated for their DNA binding properties that confirm that the binding mode is intercalation. The bioactive ligand and its complexes also exhibit pronounced pharmacological activities such as antioxidant and antimicrobial activities against bacteria such as Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Salmonella typhi; fungi, namely, Aspergillus niger, Aspergillus flavus, Candida albicans and Rhizoctonia bataticola. Moreover, the compounds are examined for their density functional theory (DFT) studies using Gaussian 09 programme. Various reactivity descriptors are calculated based on the highest occupied molecular orbital–lowest unoccupied molecular orbital (HOMO‐LUMO) energies. Molecular docking is conducted with two different receptors 1BNA and 1HD2 proteins to get a wide knowledge on the in vitro biological examination and also the interaction of the compounds with different proteins.
Artificial portable plates: A brand new method for assisted colonization of an endangered marine invertebrate, Patella ferruginea
Authors: Pavón‐Paneque Altai , Ostalé‐Valriberas Enrique , Sempere‐Valverde Juan , Sedano Francisco , Espinosa Free , García‐Gómez José Carlos 
Published: December 2023

Abstract

Limpets play an important role in structuring the intertidal fringe, one of the most heavily impacted marine habitats. A large number of limpet species are listed as Endangered or Vulnerable, including Patella ferruginea, one of the most endangered marine invertebrates in the Mediterranean Sea.
Relocation attempts have been made as a conservation tool for reintroductions and population reinforcements for P. ferruginea. Some relocations were mandatory because of port infrastructure repairs in areas where viable populations of this limpet occurred. However, most relocations attempted to date have experienced high mortality rates, leading to the Spanish National Conservation Strategy not recommending this approach for this species.
In this study, 84 individuals of P. ferruginea were relocated, using artificial portable plates (APPs) installed on the ripraps of the Port of Ceuta (Western Mediterranean Sea). These plates were divided into two groups and relocated: (i) as a translocation to a nearby site with similar environmental conditions to the donor area (procedural control); and (ii) as a reinforcement translocation to a relatively distant location (30 km, Algeciras Bay) (experimental procedure). The mortality of the translocated individuals in the procedural control after 10 weeks was similar (6.6%) to that expected for natural populations, whereas the mortality rate for individuals in the reinforcement translocation was higher (26.6%).
The APPs have been proven to be a feasible method for translocation, as they result in relatively low mortality by preventing the stress and damage caused by limpet detachment from substrata. The constraints caused by reinforcement translocation to a new environment seem to be the cause of the increased mortality, as the translocated limpets changed their home scar at a much higher rate than the control limpets did.
An adaptive event‐triggered H∞control framework for nonlinear networked control systems with dual‐channel quantization
Authors: Liu Chongzhi , Tang Xiaojun , Lu Youshui , Wen Guangrui , Zhang Zhifen , Peng Jingbo 
Published: December 2023

AbstractNetworked control system (NCS) is widely used in various fields, but the nonlinear of the controlled plants and the limited network bandwidth bring stability issues, which will affect the performance or even instability of the NCS. To address these aforementioned challenges, this paper proposes a novel nonlinear NCS framework, by considering network‐induced delay, adaptive event‐triggered mechanism, state quantization, control input quantization, and external disturbance based on T‐S fuzzy model. Also, based on this framework, we derive an stability criterion for NCS using linear matrix inequality and propose a collaborative design method for event triggers and controllers. Finally, we verify the superiority and effectiveness of the method by giving two numerical examples.
MOF@Au NPs/aptamer fluorescent probe for the selective and sensitive detection of thiamethoxam
Authors: Yuan Weiwei , Li Shuhuai , Ma Xionghui , Pang Chaohai , Wu Yuwei , Wang Mingyue , Li Bei 
Published: December 2023

AbstractThe luminescence performance of fluorescent reagents plays a crucial role in fluorescence analysis. Therefore, in this study, a novel bi‐ligand Zn‐based metal–organic framework, Au nanoparticle (NP) fluorescent material was synthesized using a hydrothermal method with Zn as the metal source. Simultaneously, a DNA aptamer was introduced as a molecular recognition element to develop a Zn‐based MOF@Au NPs/DNA aptamer fluorescent probe for the ultra‐trace detection of thiamethoxam residues in agricultural products. The probe captured different concentrations of the target molecule, thiamethoxam, through the DNA aptamer, causing a conformational change in the DNA aptamer and bursting the fluorescence of the probe, therefore establishing a fluorometric method for thiamethoxam detection. This method is highly sensitive due to the excellent luminescence properties of the Zn‐based MOF@Au NPs, and the DNA aptamer can specifically recognize thiamethoxam, offering high selectivity. The linear range of the method was 2.5–6000 × 10−11 mol L−1, with a detection limit of 8.33 × 10−12 mol L−1. This method was applied to the determination of actual samples, such as bananas, and the spiked recovery rate was found to be in the range 84.05–109.07%. Overall, the proposed probe has high sensitivity, high selectivity, and easy operation for the detection of thiamethoxam residues in actual samples.
Sustainable finance disclosure regulation insights: Unveiling socially responsible funds performance during COVID‐19 pandemic and Russia–Ukraine war
Authors: Cosma Simona , Cucurachi Paolo , Gentile Vincenzo , Rimo Giuseppe 
Published: December 2023

AbstractThe transition towards a more sustainable financial market demands transparency and trust from investors, objectives also pursued by the Sustainable Finance Disclosure Regulation (SFDR). Specifically, carefully assessing the risk‐adjusted performance of sustainable funds empowers investors to make informed decisions in alignment with their ethical and financial objectives. This article contributes to the debate on the performance of socially responsible investment (SRI) funds in times of crisis by evaluating the risk‐adjusted performance of a sample of SRI and conventional funds, ranked in light of the SFDR, during the COVID‐19 pandemic and the Russia–Ukraine war. Using a two‐step analysis, the results of the study show that funds with clear sustainability objectives, as defined by Article 9 of the SFDR, were able to outperform conventional funds, but only a few months after the onset of the crisis periods, thus demonstrating poor performance persistence. At the same time, sustainable funds with a focus on financial materiality, as defined by Article 8, were never able to generate significantly different risk‐adjusted performance from conventional funds. Our results show that the lack of performance persistence of Article 9 funds prevents an effective hedging role for investment strategies that consider extra‐financial criteria. They also confirm that the classification criteria introduced by the SFDR still need to be more specific and create more transparency in financial markets.
Organoid co‐culture models of the tumor microenvironment promote precision medicine
Authors: Gu Zhaoru , Wu Quanyou , Shang Bingqing , Zhang Kaitai , Zhang Wen 
Published: December 2023

AbstractIn recent years, the three‐dimensional (3D) culture system has emerged as a promising preclinical model for tumor research owing to its ability to replicate the tissue structure and molecular characteristics of solid tumors in vivo. This system offers several advantages, including high throughput, efficiency, and retention of tumor heterogeneity. Traditional Matrigel‐submerged organoid cultures primarily support the long‐term proliferation of epithelial cells. One solution for the exploration of the tumor microenvironment is a reconstitution approach involving the introduction of exogenous cell types, either in dual, triple or even multiple combinations. Another solution is a holistic approach including patient‐derived tumor fragments, air‐liquid interface, suspension 3D culture, and microfluidic tumor‐on‐chip models. Organoid co‐culture models have also gained popularity for studying the tumor microenvironment, evaluating tumor immunotherapy, identifying predictive biomarkers, screening for effective drugs, and modeling infections. By leveraging these 3D culture systems, it is hoped to advance the clinical application of therapeutic approaches and improve patient outcomes.
Chemical Composition and Biological Activities of the Essential Oil from Citrus reticulata Blanco Peels Collected from Agrowastes
Authors: Job Joice Tom , Visakh Naduvilthara U. , Pathrose Berin , Alfarhan Ahmed , Rajagopal Rajakrishnan , Thayyullathil Jobiraj , Thejass P. , Ramesh Varsha , Narayanankutty Arunaksharan 
Published: December 2023

AbstractCitrus fruits have a thick outer coat which is often discarded due to its low economic value and usually contributes to the waste. So this work focused on exploring the potential pharmacological properties of the discarded citrus peels. In the present study, we extracted the essential oil from peel wastes of Citrus reticulata Blanco (CREO) from the local market. The antioxidant, antibacterial, and anticancer properties of essential oil were evaluated. The CREO exhibited a strong antioxidant property with DPPH radical scavenging, ABTS radical scavenging, H2O2 radical scavenging, Ferric reducing antioxidant power and for Lipid peroxidation inhibition respectively. Antibacterial properties of CREO was indicated against different pathogenic microbial strains like E. coli, P. aeruginosa, S. aureus, and S. enterica in terms of disc diffusion method and minimum inhibitory concentration (MIC). Further, anticancer properties studied on breast cancer cell lines MCF7 and MDA‐MB‐231 showed dose‐dependent cytotoxicity with IC50 of 56.67±3.12 μg/mL and 76.44±2.53 μg/mL respectively. The GC‐MS analysis of CREO revealed the presence of major compounds like S‐limonene, α‐pinene, α‐myrcene, and cis‐terpinene which might have played a significant role in strong antioxidant, antibacterial and anticancer properties. The study thus identified the potential health benefits of Citrus reticulata peel waste.
Bioactivities and Structure‐Activity Relationships of Maslinic Acid Derivatives: A Review
Authors: Yan Rui , Liu Luguang , Huang Xing , Quan Zhe‐Shan , Shen Qing‐Kun , Guo Hong‐Yan 
Published: December 2023

AbstractMaslinic acid has a variety of biological activities, such as anti‐tumor, hypoglycemic, anti‐inflammatory, and anti‐parasitic. In order to enhance the biological activity of maslinic acid, scholars have carried out a lot of structural modifications, and found some more valuable maslinic acid derivatives. In this paper, the structural modification, biological activity, and structure‐activity relationship of maslinic acid were reviewed, providing references for the development of maslinic acid.
Elucidating the attributes of winter wheat grain quality under reduced nitrogen input through near‐infrared spectroscopy
Authors: von Wrochem Almut , Rekowski Azin , Ziegler Denise , Hitzmann Bernd , Zörb Christian 
Published: December 2023

AbstractBackground and ObjectivesResearch in crop science is usually conducted in studies with a small number of plants and crops. The aim of this project was to investigate whether near‐infrared spectroscopy (NIRS) can contribute to the analysis of such small data sets. For this purpose, NIR spectra of a small sample set of whole‐grain wheat flours of two winter wheat cultivars harvested from greenhouse and field experiments with different fertilization management were analyzed.FindingsPrincipal component analysis (PCA) facilitated the discrimination of samples based on fertilization, baking volume, and growing conditions for each wheat cultivar. In addition, PCA allowed the differentiation of wheat cultivars in a data set containing both cultivars. Spectra–structure relationships were also established. Accurate calibrations with R2 of .98, .98, and .54 were obtained for fertilization, crude protein concentration, and baking volume, respectively, even for a small data set of 10 samples of wheat cultivar Discus.ConclusionThe NIR spectra of whole‐grain wheat flour samples provided high‐resolution information on various parameters such as fertilization, baking volume, wheat cultivar, and growing site. This study demonstrates that NIRS is a valuable and efficient tool for the analysis of small data sets in crop science. This illustrates the effectiveness of the elegant NIRS method.Significance and NoveltyIn this study, small data sets of whole‐grain wheat flour from crop science experiments were analyzed by NIRS. Characteristic changes of the NIR spectra based on applied fertilizer amount, crude protein concentration, baking volume, growing site, and wheat cultivar were revealed. The detection of cause‐and‐effect relationships between spectra and chemical properties of samples contributes to a better understanding of NIR spectra of wheat flours in an interpretative way.
Electrochemical Sensing and Photoelectrodegradation of Pentachlorophenol using Co‐, Mn‐ and Zn‐Porphyrins
Authors: Jokazi Mbulelo , Nyokong Tebello 
Published: December 2023

AbstractIn this work, we present Zn, CoII, and MnIII metalated meso‐tetra‐[4‐(methylthio) phenyl] porphyrin ([Zn(TMtPP)], [CoII(TMtPP], and [MnIII(TMtPP)Cl]) as electrocatalysts and photoelectrocatalysts for electrochemical detection and photoelectrocatalytic degradation of pentachlorophenol (PCP). The complexes were characterized using UV‐visible spectroscopy, mass spectroscopy, and elemental analysis. Proton nuclear magnetic resonance (1H NMR) studies were only conducted for the Zn derivative. The electrochemical detection of PCP was carried out using cyclic voltammetry and chronoamperometry. [CoII(TMtPP)] showed better detection limit. For photoelectrocatalytic (PEC) degradation studies of PCP, linear sweep voltammetry and UV‐visible spectra were employed. [Zn(TMtPP)] showed better removal efficiency. The main species responsible for the PEC degradation were found to be superoxide radicals (⋅O2) and electron holes (h+).
Post‐device Dimethylamine Treatment Enables Stable and Efficient Perovskite Solar Cells
Authors: Liao Jing , Shen Xiaolong , Liu Changjiang , Yang Xumeng , Li Haijin 
Published: December 2023

AbstractThe incorporation of organic ligands via post‐device treatment is an effective strategy to improve the stability of perovskite solar cells (PSCs). Although the active area is protected by metal electrode under post‐treatment, the aggression of post‐treatment ligands into active area cannot be avoided thoroughly. Unfortunately, the size of long‐chain amines is too large, and the three‐dimensional (3D) perovskite cannot maintain its 3D perovskite structure once the cation substitution occurs during the post‐treatment. Despite that the low‐dimensional (LD) perovskites are beneficial to stability, long‐chain amines are harmful to carrier transport in PSCs. Here, we introduce dimethylamine (DMA), a slightly oversized cation that can be doped into 3D perovskite structure, for post‐device treatment to improve the efficiency and stability of PSCs. After exposure to DMA gas, the inactive area of Cs/FA/MA mixed cation perovskite device that is not covered by metal electrode is converted into LD perovskite, passivating the defects of 3D perovskite in the active region, suppressing non‐radiation recombination and ion migration. As a result, we achieved a power conversion efficiency (PCE) of 22.29 % with negligible hysteresis and better stability after DMA post‐treatment, which is much higher than that (20.40 %) of the control device.
The Effect of Conformational Freedom vs Restriction on the Rate in Asymmetric Hydrogenation: Iridium‐Catalyzed Regio‐ and Enantioselective Monohydrogenation of Dienones
Authors: Zheng Jia , Peters Bram B. C. , Jiang Wei , Suàrez Lluís Artús , Ahlquist Mårten S. G. , Singh Thishana , Andersson Pher G. 
Published: December 2023

AbstractTransition metal‐catalyzed asymmetric hydrogenation constitutes an efficient strategy for the preparation of chiral molecules. When dienes are subjected to hydrogenation, control over regioselectivity still presents a large challenge and the fully saturated alkane is often yielded. A few successful monohydrogenations of dienes have been reported, but hitherto these are only efficient for dienes comprised of two distinctly different olefins. Herein, the reactivity of a conjugated carbonyl compound as a function of their conformational freedom is studied, based on a combined experimental and theoretical approach. It was found that alkenes in the (s)‐cis conformation experience a large rate acceleration while (s)‐trans restrained alkenes undergo hydrogenation slowly. Ultimately, this reactivity aspect was exploited in a novel method for the monohydrogenation of dienes based on conformational restriction ((s)‐cis vs (s)‐trans). This mode of discrimination conceptually differs from existing monohydrogenations and dienones constructed of two olefins similar in nature could efficiently be hydrogenated to the chiral alkene (up to 99 % ee). The extent of regioselection is even powerful enough to overcome the conventional reactivity order of substituted olefins (di>tri>tetra). This high yielding and atom‐economical protocol provides an interesting opportunity to instal a stereogenic center on a carbocycle, while leaving a synthetically useful alkene untouched.
Cyclic diacyl thioureas enhance activity of corrector Lumacaftor on F508del‐CFTR
Authors: Spallarossa Andrea , Pedemonte Nicoletta , Pesce Emanuela , Millo Enrico , Cichero Elena , Rosano Camillo , Lusardi Matteo , Iervasi Erika , Ponassi Marco 
Published: December 2023

AbstractCystic fibrosis is a genetic disease caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) protein. In the search of novel series of CFTR modulators, a library of mono and diacyl thioureas were prepared by sequential synthesis. When tested alone, the obtained compounds 5 and 6 poorly affected F508del‐CFTR conductance but, in combination with Lumacaftor, selected derivatives showed the ability to increase the activity of the approved modulator. Analogue 6 i displayed the most marked enhancing effect and acylthioureas 6 d and 6 f were also able to improve efficacy of Lumacaftor. All compounds proved to be non‐cytotoxic against different cancer cell lines. Good pharmacokinetic properties were predicted for derivatives 5 and 6, thus supporting the value of these compounds for the development of novel modulators potentially useful for cystic fibrosis.
Arnold diffusion in Hamiltonian systems on infinite lattices
Authors: Giuliani Filippo , Guardia Marcel 
Published: December 2023

AbstractWe consider a system of infinitely many penduli on an ‐dimensional lattice with a weak coupling. For any prescribed path in the lattice, for suitable couplings, we construct orbits for this Hamiltonian system of infinite degrees of freedom which transfer energy between nearby penduli along the path. We allow the weak coupling to be next‐to‐nearest neighbor or long range as long as it is strongly decaying. The transfer of energy is given by an Arnold diffusion mechanism which relies on the original V. I Arnold approach: to construct a sequence of hyperbolic invariant quasi‐periodic tori with transverse heteroclinic orbits. We implement this approach in an infinite dimensional setting, both in the space of bounded ‐sequences and in spaces of decaying ‐sequences. Key steps in the proof are an invariant manifold theory for hyperbolic tori and a Lambda Lemma for infinite dimensional coupled map lattices with decaying interaction.