bluuebunny/crossref_metadata_2025_split huggingface dataset:
Conformal Growth of Nano‐Patterned Monolayer MoS2 with Periodic Strain via Patterned Substrate Engineering for High‐performance Photodetectors
Authors: Jian Pengcheng , Chen Maohua , Li Dongyan , Zhao Yongming , Liu Weijie , Luo Yuang , Tian Xiantai , Peng Meng , Zhou Xing , Dai Jiangnan , Wu Feng , Chen Changqing 
Published: August 2024

AbstractThe extraordinary mechanical compliance of 2D molybdenum disulfide (MoS2) makes it an ideal candidate for strain modulation of various electrical and optical properties. However, developing facile methods for accurate and stable engineering of strain still remains a major challenge. Here, a novel and effective method is demonstrated for introducing periodic strain into monolayer MoS2 by direct growth on nano‐patterned sapphire substrates (NPSS). A mixed aqueous solution of Na2MoO4 and NaOH is spin‐coated on the NPSS and sulfurated in one step by chemical vapor deposition (CVD). Highly oriented monolayer MoS2 single‐crystal nanosheets with high quality and few sulfur vacancies are achieved conformally on the NPSS via a liquid‐mediated growth mode. Notably, the periodically distributed blue shift of the PL emission peak demonstrated periodic compressive strain is introduced into the nano‐patterned MoS2 via the thermal expansion difference between MoS2 and substrates. Furthermore, photodetectors fabricated using the nano‐patterned monolayer MoS2 exhibit a high photo‐to‐dark current ratio (PDCR) over 106, an excellent detectivity of 5.4 × 1013 Jones, and a fast photoresponse of 7.7 ms, owing to the strain‐induced back‐to‐back built‐in electric field, enhanced light absorption by light‐scattering effect and fewer S vacancy defects. The scanning imaging demonstration based on the single‐pixel nano‐patterned MoS2 photodetector further confirms its great potential in image sensors. This work hereby presents a pathway for direct conformal growth of nano‐patterned monolayer MoS2 with precisely periodic strain, which should inspire the applications for high‐performance optoelectronic devices via the strategy of patterned substrate engineering by the periodic nanostructures.
Development and Evaluation of a Diclofenac‐Loaded Thermogel for Topical Treatment of Corneal Alkali Burns
Authors: Ge Zhengwei , Zhao Yanying , Guo Tingting , Liang Shengnan , Chen Zhongping 
Published: August 2024

AbstractCorneal alkali burns have become a frequent and urgent issue in ophthalmology, but current treatments are limited. To address this, a diclofenac‐loaded thermogel with anti‐inflammatory agents is developed to target inflammation and improve drug delivery for corneal alkali burns. Thermogels are prepared by dissolving methylcellulose (MC) and hydroxypropyl methylcellulose (HPMC) in phosphate‐buffered saline (PBS), adding diclofenac (DF), and storing the solution at 4 °C. The thermogel's temperature‐sensitive behavior and injectability at 35 °C are assessed. Freeze‐dried thermogels are examined using scanning electron microscopy. Rheological properties, swelling behavior, and in vitro release studies are conducted. In vitro and in vivo biocompatibility tests are performed. A corneal alkali burn model is established in rats, and different treatments are administered for 7 days. Eyeballs are collected for histological and molecular analysis. The thermogel formulation formed a stable gel at 35 °C and continuously released DF for 7 days. In vitro and in vivo tests confirmed the thermogels' excellent biocompatibility. The released DF promotes the expression of the anti‐inflammatory cytokine interleukin‐10 (IL‐10) and inhibits the expression of pro‐inflammatory factors TNF‐α and vascular endothelial growth factor (VEGF). This novel DF/thermogel offers an efficient, topical, and cost‐effective approach with significant potential for treating corneal alkali burns.
From impression to expression: How warmth and competence in relaxing and challenging activities shape pleasure and eWOM
Authors: Su Lujun , Wang Xiushan , Lin Zhibin , Xiao Sarah 
Published: August 2024

AbstractThis research investigates how aligning service providers' warmth and competence with the nature of leisure activities (relaxing vs. challenging) influences pleasure and electronic word‐of‐mouth (eWOM) sharing. Through a series of five studies, including secondary data analysis (Study 1), scenario‐based experiments (Studies 2a, 3, 4, and 5), and observation of actual eWOM behavior (Study 2b), we demonstrate that the alignment between service judgments and activity type (i.e., warmth in relaxing activities and competence in challenging activities) enhances positive eWOM sharing, with this effect being mediated by the pleasure derived from the service experience. Our findings contribute to the theoretical understanding of the cognitive and affective antecedents of eWOM. We extend the stereotype content model to the eWOM research, identifying activity type as a novel boundary condition. We recommend that managers tailor their impression management strategies to the type of activity offered. For relaxing activities, emphasize warmth‐related attributes, while for challenging activities, highlight competence‐related attributes—both approaches can enhance customer pleasure and encourage positive eWOM sharing.
Determining the effects of varying blood storage conditions on clot formation and digestion under shear
Authors: Christodoulides Alexei , Zeng Ziqian , Hall Abigail R. , Alves Nathan J. 
Published: August 2024

AbstractStudies aiming to understand the effects of storage on whole blood (WB) clotting often rely on characterizing coagulation under static conditions. Minimal work has explored the effects of physiologic shear on clot formation and thrombolysis utilizing fractionated and reconstituted whole blood (rWB) products. WB was fractionated into platelet‐free plasma, packed red blood cells, and platelets storing each component under its ideal conditions—including platelet cryopreservation. Recombination at their native ratios was accomplished over 91 days of storage and clotting/thrombolysis was analyzed utilizing thromboelastography and Chandler loop. rWB preserved clot strength through 91 days with minimal deviation from baseline, in contrast to WB stored at 4°C which experienced a significant decline by storage Day‐42. Clot formation under shear for both rWB and WB led to increased clot mass through storage. No significant deviation from baseline was appreciated until Day 70 of storage in rWB. Increasing degrees of thrombolysis were seen in both groups, with rWB significantly deviating from baseline at Day 70. No significant changes in overall clot architecture occurred throughout storage and recombination. This fractionation and recombination protocol serves as a method to further develop reproducible in vitro clot analogs for preclinical thrombolytic therapy screening.
Nachhaltige Ernährung als Unterrichtsthema
Authors: Sieve Bernhard , Struckmeier Sabine 
Published: August 2024

AbstractOhne Chemie ist eine auf Nachhaltigkeit ausgerichtete Nahrungsmittelproduktion unmöglich. Trotzdem sind Ernährung und Nahrungsmittel im Chemieunterricht höchstens Nebensache. Sich umfassender mit diesen Themen zu beschäftigen, würde Lernende zur Mündigkeit und Teilhabe erziehen – in Bezug auf Ernährung und damit auf die Gesunderhaltung einer Gesellschaft.
Lebensmittelindustrie: Nebenströme nachhaltig nutzen
Authors: Bulmahn Maren 
Published: August 2024

AbstractUnter den 2842 Ausstellern der Prozessindustriemesse Achema im Juni nutzten 130 das Stichwort Lebensmittel in ihrer Tätigkeitsbeschreibung. Beim zugehörigen Kongress beschäftigten sich damit mehr als 40 Vorträge, etwa mit Fermentieren, Verarbeiten oder Verpacken.
Interdisciplinary Workshop 2024 for Young Scientists in Algiers, Algeria
Authors: Sekkal‐Rahal Majda , Bel Abbès Sidi , Paulus Beate , Fink Reinhold , Hopf Henning , Ellouze Mohamed , El‐Khateeb Mohammad , Mousa Marwan 
Published: August 2024

AbstractSupported by the GDCh, young scientists met for the eleventh time in an Arab country during an Interdisciplinary Workshop on science communication on May 19, 2024. Each of the 14 participants had around 10 minutes to present their work which was then discussed slide by slide. During the discussions the attendees were encouraged to reveal their impressions, feelings and problems with each slide. Often it appeared that some few changes helped to arouse the interest and understanding of an audience which in its majority is not familiar with the topics presented. The young scientists could then take into account all suggestions, improve their talks which they were encouraged to present at the following Humboldt‐Kolleg „Chemistry of Bio‐ and Nanosystems“, held in Algiers, Algeria.
Früher Laboratorium, heute Bakterium
Authors: Bonrath Werner , Schäfer Christian 
Published: August 2024

AbstractHeute stammen Vitamine in Tabletten oft aus der Biosynthese von Mikroorganismen. Als Ausgangsstoff nutzen diese vor allem Glucose, wodurch weniger Chemikalien aus fossilen Quellen und tierischem Ursprung nötig sind. Doch auch wenn die neuen Methoden günstiger und umweltfreundlicher erscheinen, hat die klassische Synthese noch nicht ausgedient.
Nachruf: Andreas J. Kornath (1965 – 2024)
Authors: Karaghiosoff Konstantin , Kaufmann Alexander , Leitz Dominik , Müller Lutz , Seifert Mathias 
Published: August 2024

AbstractAndreas J. Kornath war fasziniert von Schwefel‐ und Fluorchemie, hochreaktiven Verbindungen und der Kultur der US‐Südstaaten.
Five percent CO2 inhalation alleviates hippocampal glutamate and water homeostasis disturbance, neuronal damage, and learning‐memory impairment in sleep‐deprived rats
Authors: Zhao Zhihong , Zhang Xiaojun , Zhang Xiaolei , Xie Shiyan , Chen Yue , Lai Lingfeng , Xin Lijing , Guan Jitian , Lin Yan , Wu Renhua 
Published: August 2024

AbstractBackgroundSleep deprivation causes hippocampal injury, manifesting as neuronal damage and learning‐memory impairment. These negative effects may be associated with disturbance of hippocampal glutamate and water homeostasis, which induces excessive neuronal excitability. Five percent CO2 inhalation has been shown to suppress neuronal excitability. Here, we aimed to investigate whether 5% CO2 inhalation facilitates the recovery of hippocampal glutamate and water homeostasis, neuron morphology, and learning‐memory ability in sleep‐deprived rats.MethodsThirty‐six Sprague‐Dawley female rats were randomly divided into three groups including normal sleep (Group 1, NS, n = 12), sleep deprivation followed by sleep recovery (Group 2, SD+SR, n = 12), sleep deprivation followed by sleep recovery and 5% CO2 inhalation (Group 3, SD+SR+CO2, n = 12) by random number table. Each group was divided into two subgroups (n = 6 each subgroup) for different experiments randomly by random number table.ResultsWe found that 5% CO2 inhalation facilitated the recovery of hippocampal glutamate concentration (7.549 ± 0.310, 8.716 ± 0.463, and 7.493 ± 0.281 mmol/L at Days 1, 3, and 5 in Group 3, F2, 15 = 22.06, p < 0.0001) and hippocampal apparent diffusion coefficient mean value (8.210 ± 0.274, 7.685 ± 0.171, 8.265 ± 0.269 at Days 1, 3, and 5 in Group 3, F2, 15 = 10.45, p = 0.0014), enhanced expression level of astrocyte‐specific membrane protein glutamate transporter‐1, promoted the polarized distribution of aquaporin 4, reduced hippocampal neuronal damage and improved learning‐memory ability in sleep‐deprived rats.ConclusionThis study showed that 5% CO2 inhalation can serve as a novel strategy for alleviating sleep deprivation‐induced hippocampal injury.
Renal sinus adipose tissue: exploratory study of metabolic features and transcriptome compared with omental and subcutaneous adipose tissue
Authors: Pereira Maria J. , Mathioudaki Argyri , Otero Alicia G. , Duvvuri Padma Priya , Vranic Milica , Sedigh Amir , Eriksson Jan W. , Svensson Maria K. 
Published: August 2024

AbstractObjectiveThe objective was to study metabolic characteristics and transcriptome of renal sinus adipose tissue (RSAT) located around renal arteries and veins.MethodsAdipose tissue biopsies from RSAT, omental (OAT), and subcutaneous (SAT) depots were obtained from healthy kidney donors (20 female, 20 male). Adipocyte glucose uptake rate and cell size were measured, and gene expression analyses using transcriptomics were performed.ResultsRSAT adipocytes were significantly smaller, with a higher basal glucose uptake rate, than adipocytes from SAT and OAT. Transcriptomic analyses revealed 29 differentially expressed genes between RSAT and OAT (RSAT: 23 lower, 6 higher) and 1214 differentially expressed genes between RSAT and SAT (RSAT: 859 lower, 355 higher). RSAT demonstrated molecular resemblance to OAT, both exhibiting lower metabolic gene expression and higher expression of immune‐related pathways, including IL‐17, TNFα, and NF‐κB signaling than SAT. Weighted gene coexpression network analysis associated RSAT with immune response and nucleic acid transport processes. Despite its location near the renal hilum, RSAT closely resembled OAT and there was a lack of expression in the classical brown adipose tissue genes. Gene enrichment analyses suggest an inflammatory environment in RSAT compared with SAT and, to some extent, OAT.ConclusionsThe findings suggest specific RSAT functions that could impact renal function and, possibly, the development of renal and cardiometabolic disorders.
Work‐restricting musculoskeletal pain after bariatric surgery or usual obesity care in the Swedish Obese Subjects study
Authors: Lohmander L. Stefan , Peltonen Markku , Andersson‐Assarsson Johanna C. , Sjöholm Kajsa , Taube Magdalena , Jacobson Peter , Svensson Per‐Arne , Carlsson Lena M. S. , Ahlin Sofie 
Published: August 2024

AbstractObjectiveThe objective of this study was to study the recovery from, and incidence of, work‐restricting musculoskeletal pain after bariatric surgery compared with usual obesity care.MethodsPain in different body regions was monitored using questionnaires in the nonrandomized, prospective, controlled Swedish Obese Subjects (SOS) study, which included 2007 participants treated with bariatric surgery and a matched control group of 2040 participants receiving usual obesity care at primary health care centers. Self‐reported pain in the neck and shoulders, back, hips, knees, and ankles was captured from questionnaires administered at baseline and after 1, 2, 3, 4, 6, 8, 10, 15, and 20 years.ResultsCompared with matched controls, bariatric surgery was associated with better recovery from baseline work‐restricting knee and ankle pain in both the short (1–4 years) and long term (up to 20 years), as well as from back and hip pain in the short term. In participants without pain at baseline, bariatric surgery was associated with a lower incidence of developing new pain in the knee and ankle in the short and long term.ConclusionsBariatric surgery was associated with better recovery from pain, primarily in weight‐bearing joints, as well as with prevention of pain development in the knee and ankle compared with matched controls receiving usual obesity care.
Utilization of Cobalt and its Oxide/Hydroxide Mediated by Ionic Liquids/Deep Eutectic Solvents as Catalysts in Water Splitting
Authors: Zhang Chenyun , Wang Jie , Jin Jianjiao , Wang Jiahao , Bai Te , Xu Jiacheng , Wang Shun , Xu Lihua , Zhang Jing 
Published: August 2024

AbstractWith the ever‐growing global demand for sustainable energy solutions, hydrogen has garnered significant attention as a clean, efficient, and renewable energy source. In the field of hydrogen production, catalyst research stands out as one of the foremost areas of focus. In recent years, the preparation of electrocatalysts using ionic liquids (ILs) and deep eutectic solvents (DESs) has attracted widespread attention. ILs and DESs possess unique physicochemical properties and are recognized as green media as well as functional materials. Cobalt‐based catalysts have proven to be efficient electrocatalysts for water splitting. Incorporating ILs or DESs into the preparation of cobalt‐based catalysts offers a remarkable advantage by allowing precise control over their structural design and composition. This control directly influences the adsorption properties of the catalyst's surface and the stability of reaction intermediates, thereby enabling enhanced control over reaction pathways and product selectivity. Consequently, the catalytic activity and stability of cobalt‐based catalysts can be effectively improved. In the process of preparing cobalt‐based catalysts, ILs and DESs can serve as solvents and templates. Owing to the good solubility of ILs and DESs, they can efficiently dissolve raw materials and provide a special nucleation and growth environment, obtaining catalysts with novel‐structures. The main focus of this review is to provide a detailed introduction to metal cobalt and its oxide/hydroxide derivatives in the field of water splitting, with a particular emphasis on the research progress achieved through the utilization of IL and DES. The aim is to assist readers in designing and synthesizing novel and high‐performance electrochemical catalysts.
Fabrication of n‐p heterostructure of polyaniline–barium zirconate nanocomposites sensor device for the detection of diazomethane gas
Authors: Manjunatha S. , Parveen Ameena , Roy Aashis S. 
Published: August 2024

AbstractNanoparticles of barium zirconate were prepared by sol–gel method and used for the preparation of nanocomposites. Polyaniline fibers and its nanocomposites with barium zirconate were prepared by in‐situ polymerization at various percentages of 1 wt%, 2 wt%, 3 wt%, 4 wt%, and 5 wt%. The prepared polyaniline nanocomposites were subjected for determination functional group by FTIR spectra and XRD analysis. The surface morphology is important aspect of sensor studies, which is illustrated by SEM and TEM image. DC conductivity of the pristine PANI and its nanocomposites increases with increase in temperature up 200°C. It is evident that the increase in conductivity is due to the hopping of charge carriers from valence band to conduction band. Among all the nanocomposites, 3 wt% of polyaniline nanocomposite shows the high conductivity of 18.6 S/cm. It is also noted that 3 wt% polyaniline nanocomposites have a higher sensitivity of 86.2% at 300 ppm when compared with other compositions. This could be because of formation strong connections between the polyaniline fibers and nano‐oxide as a resulted of enhanced node connections, high surface area and porosity through optimized nanomaterials doping. The nanocomposites sensitivity restored in 89 s after the gas was removed, responding in 23 s at 300 ppm.
Exploring perinatal ketamine for postpartum depression following cesarean section: A systematic review
Authors: Thompson Jaylyn , Lo David F. , Foschini Alexis , Sundaresh Suvan 
Published: August 2024

AbstractThe aim of this study was to explore the use of perinatal ketamine to see if it can be used for the reduction of postpartum depression (PPD) following cesarean section (C‐section). PubMed, Cochrane, and Web of Science were the primary databases used for this review. Search terms used on January 5, 2024 incorporated “ketamine,” “C‐section,” “postpartum depression,” and related synonyms. The criteria for inclusion centered on studies published between January 1, 2008 and January 5, 2024. The final selection of articles was screened based on extraction criteria leaving eight randomized control trials in the final review. The selected data from the studies incorporated sample characteristics, study and population characteristics, and quantitative analyses covering Edinburgh Postpartum Depression Scale (EPDS) scores and depression rates. The Risk of Bias assessment was utilized to gain a deeper understanding of the quality of methodology used by the research studies. The review showed that ketamine can reduce the symptoms of PPD in mothers who have recently undergone C‐sections. Some studies showed decreased EPDS scores following the administration of ketamine while two studies also reported no significant differences in PPD following ketamine administration in C‐section patients. For example, Ma et al. found that the EPDS score at postpartum day 4 was significantly lower in the ketamine group compared with the control group (p = 0.007) while Yang et al. found that there were no significant differences between the ketamine and control group at 3 days postpartum (p = 0.553). The research from this review suggests that ketamine administration can prevent or decrease the symptoms of PPD, but more research is needed to establish the causal relationship between ketamine dosage and PPD in C‐section patients.
Effects of filler material on the characteristics of electrospun polyvinyl alcohol/Nafion nanofibrous membranes
Authors: Işılay Mert , Çay Ahmet , Akduman Çiğdem , Kumbasar Emriye Perrin Akçakoca , Ertaş Hasan 
Published: August 2024

AbstractIn this study, polyvinyl alcohol/Nafion nanofibrous composite membranes were produced to investigate their possible application as a polymer electrolyte membrane (PEM) in direct methanol fuel cells. Electrospinning method was used for nanofibrous membrane production, in which the mixture of polyvinyl alcohol (PVA) and Nafion solutions was directly electrospun. Produced nanofibers were subjected to physical stabilization, filler application, and sulfonating to produce composite nanofibrous membranes. PVA and Nafion polymers were used also as filler materials. The properties of resultant composite membranes were compared in terms of water swelling, weight loss in water and methanol solution, thermal stability, morphology, proton conductivity, and methanol permeability. Proton conductivity of the membranes depending on the humidity was also investigated. TGA analysis showed that the membranes had adequate thermal properties regardless of the filler material. The nanofibrous structure was shown to be preserved by scanning electron microscopy (SEM) after treatment with water and methanol solution. It was shown that PVA/Nafion nanofibers displayed proton conductivity after filling process. The use of PVA as a filler material led to higher proton conductivity at 100 RH%. It was reported that proton conductivity could only be obtained at higher relative humidity values (>80% RH). A lower methanol permeability of PVA‐filled membranes was reported.Highlights
PVA/Nafion nanofibrous membranes were produced by electrospinning.
PVA and Nafion were also used as pore filling materials.
PVA‐filled membranes had higher proton conductivity and lower methanol permeability.
Proton conductivity could only be obtained at higher RH% values.