bluuebunny/crossref_metadata_2025_split huggingface dataset:
Physicochemical and photocatalytic properties of Ag2CrO4/Fe2O3/CeO2 ternary nanocomposite
Authors: Ananthkumar Mahendran , Jayaprakash Jeyaram , Debnath Abhijit , Albeshr Mohammed F. , Mythili Raja , Akilan Pachaimuthu , Kannan Alagesan , Vignesh Shanmugam , Chandrasekaran Venkatachalam 
Published: August 2024

AbstractThe study presents Ag2CrO4/Fe2O3/CeO2 ternary nanocomposite, based on Fe2O3/CeO2 binary composites, which demonstrated excellent photocatalytic performance in the photodegradation of methylene blue under solar irradiation. The Ag2CrO4/Fe2O3/CeO2 nanocomposites was orthorhombic, ilmenite, and cubic‐fluorite phases of Ag2CrO4, Fe2O3, and CeO2, respectively, according to the XRD examination. A strong bond between Ag2CrO4, Fe2O3, and CeO2 within the nanocomposite was demonstrated by the SEM and TEM investigations. Moreover, it was discovered that the coupling of Ag2CrO4 and Fe2O3 caused a red shift and moved CeO2 absorption edge from the UV to the visible spectrum. The reason behind this is that the band gap of CeO2 reduced 2.85 to 2.69 eV and the absorbance band intensity increased in visible region. Utilizing visible light, Ag2CrO4/Fe2O3/CeO2 ternary nanocomposites exhibit enhanced photocatalytic properties (98.90%) for the degradation of methylene blue (MB) within 100 min. The long‐term reliability and recyclability of the photocatalyst were explored through 3 successive cycles. An active radical quenching test was conducted to elucidate the involvement of O2− and OH which are the primary reactive species in the photocatalytic breakdown of MB. Ag2CrO4/Fe2O3/CeO2 ternary nanocomposites displayed notable improvements in photodegradation activity, making them well suited for the effective removal of hazardous dyes present in textile effluents.
Multicolor nitrogen‐doped carbon quantum dots and its application in the detection of Fe3+ ion
Authors: Van Huan Pham 
Published: August 2024

AbstractIn this paper, nitrogen‐doped carbon quantum dots (N‐CQDs) are synthesized by the hydrothermal method. N‐CQDs exhibit strong fluorescence, and N‐CQDs are well dispersed in water as well as in various organic solvents. N‐CQDs emit multi‐color fluorescence from blue to red, with wavelengths in the range of 450–650 nm without the need for purification. Furthermore, the fluorescence emission of N‐CQDs was selectively quenched after adding Fe3+ ions. N‐CQDs were used as a nanoprobe for the detection of Fe3+ ions, showing a good linear correlation between the fluorescence emission and the concentration of Fe3+ in the Fe3+ concentration range from 0 to 100 μM. The limit of detection (LOD) was 55.7 μM for Fe3+ in water and 40.2 μM in fetal bovine serum (FBS) samples. The study shows that the synthesized N‐CQDs have low cost and great potential for application in biological analysis.
Customized Modification of Welan Gum Properties Through Controllable Grafting of Acrylamide
Authors: Xu Guorui , Li Jianye , Li Xiang , Jia Yongkang , Song Yajie , Wang Jiming , Wang Lei , Zhang Haibo 
Published: August 2024

ABSTRACTWelan gum (WG) has a wide range of applications, but it is not yet suitable for applications such as oil recovery profile control that have complex requirements for viscosity, gelation properties, and so forth. Grafting modification is an important strategy for improving the property of WG, but there are few reports on controllable modification of WG to customize it for specific application. Acrylamide (AM) dosage was identified as the key factor affecting the grafting ratio of AM onto WG by a uniform experimental design. The grafting ratio can be directly adjusted between 99% and 378% based on the positive correlation with dosage of AM, and viscosity can be adjusted between 206 and 327 mPa s based on the negative correlation with grafting ratio. The 50% weight loss temperature of W11 with a grafting ratio of 110% raised from 314 to 336°C after grafting. The viscosity of the hydrogel formed with WG11 reached 15,654 mPa s, nearly nine times higher than that of unmodified WG. In addition, the gelation time can be controlled within 5 days, so that it can be injected to the optimal area in oilfield profile, avoiding pipeline blockage. This study enables adjusting viscosity of WG grafted with AM by controlling the grafting rate, and enhances gelation performance and thermal stability of WG, which will expand the application of WG in oil recovery and other fields.
Profiling adolescents' vulnerability to racial misinformation: An hybrid intervention aimed at promoting mediated intergroup contact
Authors: D'Errico Francesca , Corbelli Giuseppe , Cicirelli Paolo Giovanni , Sportelli Carmela , Paciello Marinella 
Published: August 2024

AbstractThis study addresses the issue of adolescents' susceptibility to racial misinformation, testing a socio‐analytical intervention within an educational community through the inducement of analytical processing of misleading news on one side, and mediated contact on the other. Rolling Minds web app has been designed to implement a hybrid schools intervention thanks to which classmates engage with conversational agents, guiding them in deconstructing racial stereotypes, reframing misleading narratives and empathizing with immigrants' point of view. All the intervention activities aim to enhance intergroup contact. For this purpose, in this study, which involved 208 young participants (mean age 14.65; SD = 0.74), we pursued two research objectives. Firstly, by employing a person‐centred approach, our first research question (RQ1) is to identify subgroups of adolescents based on their propensity to engage in analytical reasoning, stereotypical beliefs and self‐transcendence values, finding different vulnerability clusters to racial misinformation. In relation to the emerging profiles, their reactions to the misleading news were initially observed (ie, sharing and fact‐checking). Secondly, regarding the second research question (RQ2), through path analysis we aim to understand whether and how adolescents characterized by different profiles vary in performing activities of socio‐analytical intervention aimed at enhancing contact intentions. These results can guide the development of tailored hybrid educational strategies to engage young people in approaching racial online misinformation in a more reflective and unbiased manner, considering the adolescents' individual differences in vulnerability to racial hoaxes.
Robotic‐assisted laparoscopic radical nephrectomy and lymph nodes dissection using Senhance robotic system and Senhance ultrasonic energy device: A case report
Authors: Ng Kuan Chong , Yuan LunHsiang 
Published: August 2024

Key Clinical MessageUsing the Senhance robotic system and Senhance ultrasonic energy device for robotic‐assisted radical nephrectomy with hilum lymph node dissection demonstrated safety and feasibility in managing a large renal tumor without the need for open conversion or transfusion, offering a cost‐effective solution.
“A rare case of bladder myiasis mimicking radiation cystitis—A first case report”
Authors: Kumar Mahendra , Saikia Sujit , Das Anup Kumar , Barmon Debabrata , Baruah Upasana , Begum Dimpy , King Sopouassi V. Nicholas 
Published: August 2024

Key Clinical MessagePatients diagnosed with cancer post‐treatment are prone to have recurrent disease. Regular follow‐up of these patients enables early recognition and treatment. A tissue diagnosis before starting treatment is imperative to avoid misdiagnosis and management. Given their immunosuppression, maintaining good nutrition, body hygiene, and clean surroundings is essential to prevent the most common urinary tract infection to rare urinary myiasis infection. Cochliomyia hominivorax, Chrysomya bezziana, and Wohlfahrtia magnifica are the most prevalent flies causing myiasis in human beings. Risk factors for urinary myiasis are open or untreated wounds and debris around the genital area. Specific flies, ticks, and mosquitoes are responsible for myiasis in tropical or subtropical countries, when it is usually not transmitted from human to human. Flies lay their eggs near the urethra, and the larvae hatch and migrate to the bladder. Increased urinary frequency, haematuria, and lower abdominal pain are the most commonly found presenting symptoms. Simple preventive measures can avoid these complications. So, prevention is better than cure.
Chronic periodontitis in a patient with multiple sclerosis—A case report
Authors: Tavajohi Rayeheh , Sarbaz Amitis , Honarmand Hooshyar , Naser Moghadasi Abdorreza 
Published: August 2024

Key Clinical MessageMultiple sclerosis (MS) is one of the common central nervous system diseases, but it can cause dysfunction in other organs such as periodontal tissues. However, it has not been as noticeable. This report aimed to present a 44‐year‐old patient with severe chronic periodontitis, and sudden teeth loss since the diagnosis of MS.
Cell‐free DNA analysis for recurrent respiratory papillomatosis: A case report
Authors: Yamada Satoshi , Kano Kotaro , Ishikawa Ryuji , Imai Atsushi , Mochizuki Daiki , Morita Kotaro , Takeuchi Kazutaka , Takizawa Yoshinori , Kawasaki Hideya , Misawa Kiyoshi 
Published: August 2024

Key Clinical MessageA 35‐year‐old male presented with recurrent respiratory papillomatosis. Human papillomavirus type 11 was detected from all sites of tumor tissue DNA by PCR. The pre‐surgery cell‐free DNA (cfDNA) viral load (3.33 × 103 copies/ng DNA) fell below the post‐surgical detection limits on achieving remission, suggesting cfDNA's potential as a biomarker.
Successful management of a delayed presented button battery ingestion in a toddler: A case report and literature review
Authors: Ebrahimi Pouya , Nazari Roozbeh , Mousavinezhad Seyedeh Maryam , Senobari Nahid , Ghadimi Delaram J. 
Published: August 2024

Key Clinical MessageIt is important to note that prevention of button battery ingestion is the most effective way to reduce its incidence and complications. This is unachievable without providing educational plans for parents. Moreover, triage nurses and first‐line staff who take the history of patients and physicians should take the history to evaluate the risk of battery ingestion. Plain radiographs can be helpful in this matter, as the presence of “Hallow” and “Steep” signs in the anteroposterior and lateral views, respectively, can help.AbstractForeign body ingestion is a relatively common occurrence in pediatrics, especially among children 1–3 years of age. Although most cases are benign and managed conservatively, those with high‐risk subjects such as button batterie can bring about fatal conditions in the minority of cases. In the present study, the history, diagnostic, and therapeutic procedures of a 13‐month‐old baby with the final diagnosis of button battery ingestion are presented. The parents ignored the symptoms, suspecting that it was a viral infection. The evaluations showed that a battery was lodged in the middle part of the thoracic esophagus, which was removed by an urgent endoscopic procedure. The patient was under observation and on a nothing‐by‐mouth diet for a week, receiving nutritional fluid with a nasogastric tube. The necrosis, which was obvious after the removal of the battery, was healing in the second control esophagogastroduodenoscopy performed 1 week after the procedure. The stricture was minimal, and no need for dilation was diagnosed. This case report underscores the importance of a timely diagnosis and removal of these cases. This case underscores the importance of the timely presentation of these cases to health care and the risk of delayed removal, such as necrosis, forming fistula, and perforation of the esophagus. The delay can cause necrosis, fistula, and perforation and might lead to irreversible severe complications and even death.
Sarcoidosis presenting as isolated massive splenomegaly: A case report
Authors: Kyriakos Saad Melissa , El Hajj Imad , Saikaly Elias 
Published: August 2024

Key Clinical MessageSarcoidosis is a systemic granulomatous disease with an unknown cause, marked by the presence of noncaseating granulomas in the affected organs. While the pulmonary interstitium is most frequently involved, the disease can affect almost any other organ system. Extrapulmonary involvement can occur with or without lung involvement, but isolated extrapulmonary involvement is a rare event. Isolated splenomegaly is very rare and presents an uncommon manifestation of sarcoidosis, its diagnoses is a challenge due to a broad differential diagnosis. Here, we present an intriguing case of a 28‐year‐old male with isolated splenic sarcoidosis.AbstractSarcoidosis is a systemic disease of unknown cause, marked by the presence of noncaseating granulomas in affected organs. It most frequently impacts the pulmonary interstitium, though it can also affect nearly any other organ system. This involvement can occur with or without lung involvement, but isolated extrapulmonary cases are observed in only about 10% of instances. Furthermore, isolated splenomegaly is an exceptionally rare event and an uncommon presentation of sarcoidosis, posing a significant clinical challenge due to the wide differential diagnosis. Potential differential diagnoses include hematologic cancers, primary or metastatic splenic tumors, infiltrative diseases, inflammatory conditions, and infections. We present a noteworthy case of a 28‐year‐old with isolated splenic sarcoidosis.
Development of an in situ Mediator Dosing Concept for Scanning Electrochemical Microscopy in Lithium‐Ion Battery Research
Authors: Eidenschink Johannes , Matysik Frank‐Michael 
Published: August 2024

AbstractIn scanning electrochemical microscopy (SECM), the addition of a redox active species plays an essential role. Those deliberately added mediators may alter results in SECM studies. In investigations of lithium‐ion battery (LIB) materials, especially of the positive electrode, the oxidation potentials of commonly used mediator substances such as ferrocene are located within the operation potential of the electrode. Thus, they possibly interfere with the regular charge/discharge processes. In situ studies are therefore in need of approaches reducing or eliminating the use of mediators. Within this publication, a novel mediator dosing (MD) concept is introduced. A capillary was closely positioned at the tip of the scanning probe. By gravity flow, stable flow rates of mediator solution of up to 32.4±0.6 μL h−1 were achieved. These low amounts were found to be sufficient to form a ferrocene zone at the probe tip enabling feedback mode SECM measurements with comparable quality to measurements directly in ferrocene solution. Proof of concept experiments were conducted by investigation of a thin‐film electrode with a micro‐structured surface. Furthermore, the MD concept was applied in imaging experiments of a commercially available LIB graphite electrode.
Low‐Temperature Reduction of NOx by NH3 with Unity Conversion on Nanofilament MnO2/Activated Semi‐Coke Catalyst
Authors: He Beini , Li Hankun , Liang Shuoyang , Wang Xidong , Wang Hao , Wang Yiou 
Published: August 2024

AbstractSelective catalytic reduction of nitrogen oxides with NH3 at low temperatures remains a crucial goal for industrial applications. However, effective catalysts operating at 70–90 °C are rarely reported, limiting SCR scenarios to high‐temperature conditions. Herein, we report a unique MnO2 nanofilament catalyst grown on activated semi‐coke synthesized via a one‐step in situ hydrothermal approach, which exhibits a stable and marked 100 % conversion rate of NO to N2 with 100 % selectivity at 90 °C, superior to the other prepared structures (nanowires, nanorods, and nanotubes). Temperature‐programmed desorption shows a large number of acid sites on MnO2(NFs)/ASC, benefiting the formation of NH4+ ions. Meanwhile, diffuse reflectance infrared Fourier transform spectroscopy reveals the activation of NO with O2 to form bidentate nitrate/bridging nitrate NO2 intermediates via bidentate nitrate species, triggering the Fast SCR with NH3 at low temperatures. Such an effective, easy‐to‐prepare, and low‐cost catalyst paves a new pathway for low‐temperature SCR for a wide range of application scenarios.
Solvent‐Regulated Formation of Metal/Metal‐Oxo Nodes in Two Indium Metal‐Organic Frameworks: Syntheses, Structures, Selective Gas Adsorption and Fluorescence Sensor Properties
Authors: Zuo Congyu , Li Qinqin , Dai Mingzhu , Fan Chenyang 
Published: August 2024

AbstractTwo water‐stable indium metal‐organic frameworks, (NH2Me2)3[In3(BTB)4] ⋅ 12DMA ⋅ 4.5H2O (In‐MOF‐1) and (NH2Me2)9[In9O6(BTB)8(H2O)4(DMSO)4] ⋅ 27DMSO ⋅ 21H2O (In‐MOF‐2) (BTB=4,4′,4′′‐benzene‐1,3,5‐tribenzoate) with 3D interpenetrated structure has been constructed by regulating solvents. Structure analysis revealed that In‐MOF‐1 has a three‐dimensional (3D) structure with a single metal core, while In‐MOF‐2 features an octahedron cage constructed by three kinds of metal clusters to further form a 3D structure. The fluorescence investigations showed that In‐MOF‐1 and In‐MOF‐2 are potential MOF‐based fluorescent sensors to detect acetone and Fe3+ ions in EtOH or water with high sensitivity, excellent selectivity, recyclability and a low limit of detection. Moreover, the fluorescence mechanisms of In‐MOF‐1 and In‐MOF‐2 toward acetone and Fe3+ ions were further explained. In addition, In‐MOF‐2 has higher thermal and framework stability than In‐MOF‐1. The activated In‐MOF‐2 presents a high BET surface area of 998.82 m2g−1 and a pore size distribution of 8 to 16 Å. At the same time, In‐MOF‐2 exhibits high selective CO2 adsorption for CO2/CH4 and CO2/N2, respectively. Furthermore, the adsorption sites and adsorption isotherms were predicted using grand canonical Monte Carlo (GCMC) simulations, and the adsorption energy of the lowest‐energy adsorption configuration was calculated using molecular dynamics (MD) simulations.
Room‐Temperature Liquid Crystalline Tetraphenylethylene‐Surfactant Complex with Chiral Supramolecular Structure and Tunable Circularly Polarized Luminescence
Authors: Huang Han‐Jun , Tian Kai‐Li , Wong Shi‐Qing , Lian Ning‐Xiao , Wang Jie , Sun Hai‐Jun , Bermeshev Maxim V. , Zhong Lu‐Wei , Chen Zhijian , Ren Xiang‐Kui 
Published: August 2024

AbstractA novel room‐temperature liquid crystal of tetraphenylethylene derivative (TPE‐DHAB) was synthesized using an ionic self‐assembly strategy. The TPE‐DHAB complex exhibits typical aggregation‐induced emission properties and a unique helical supramolecular structure. Moreover, the generation and handedness inversion of circularly polarized luminescence (CPL) can be achieved through further chiral solvation, providing a facile approach to fabricate room‐temperature liquid crystalline materials with controllable supramolecular structures and tunable CPL properties through a synergistic strategy of ionic self‐assembly and chiral solvation process.
Comparison of the Application Value of Transthoracic Echocardiography in Diagnosing Patent Foramen Ovale Under Different States of Stimulation: A Retrospective Study
Authors: Shi Jianwei , Gu Haijuan , Fan Wenjun , Xia Jiesheng , Gu Huanhuan 
Published: August 2024

ABSTRACTObjectiveThis study aims to evaluate the application value of contrast‐enhanced transthoracic echocardiography (cTEE) in the diagnosis of patent foramen ovale (PFO) under different states of stimulation, with the goal of enhancing the accuracy and efficiency of PFO diagnosis.MethodsThis research consecutively enrolled patients suspected of having PFO from October 2022 to February 2024, presenting primary clinical symptoms such as unexplained syncope, headache, dizziness, and stroke. Patients underwent standard transthoracic echocardiography (TTE) and cTEE under three different states of stimulation (resting state, coughing, and Valsalva maneuver). Based on the presence of microbubbles in the left heart and their initial appearance time, patients were classified into PFO and control groups, with further diagnostic confirmation via transesophageal echocardiography (TEE) or foramen ovale closure procedures.ResultsThe study results revealed significant differences between the PFO and control groups regarding age (p = 0.034) and headache symptoms (p = 0.001). In the PFO group, TTE showed a higher positivity rate both at rest and during coughing, highlighting the association between PFO and specific clinical symptoms. The number of microbubbles observed during TTE increased significantly under various stimulation states, particularly during the Valsalva maneuver (p < 0.05). This increase became more pronounced as the duration of the maneuver was extended, underscoring the differential response of PFO patients under varied physiological testing conditions, especially during prolonged Valsalva maneuvers.ConclusionThe study confirms the significant value of cTEE in diagnosing PFO under different stimulation states, particularly emphasizing the application of the Valsalva maneuver to significantly improve the sensitivity and specificity of PFO detection. Thus, incorporating cTEE examinations under various stimulation states holds significant clinical importance for enhancing the accuracy and efficiency of PFO diagnosis.
Ultraselective, Ultrahigh Resolution 1D TOCSY
Authors: Montgomery James R. D. , Gates Emma L. , Smith Marshall J. , Taylor Daniel A. , Bradley Jonathan P. , Berry Daniel B. G. , Kiraly Peter , Nilsson Mathias , Morris Gareth A. , Adams Ralph W. , Castañar Laura 
Published: August 2024

AbstractSolution state 1H NMR spectroscopy provides valuable insights into molecular structure and conformation. However, when the spectrum exhibits severe signal overlap, it hampers the extraction of key structural information. Here, an ultraselective, ultrahigh resolution TOCSY method is introduced that greatly reduces spectral complexity, allowing the extraction of previously inaccessible spectral information. It combines the recently developed GEMSTONE excitation with homonuclear decoupling to provide highly simplified through‐bond correlation 1D 1H NMR spectra, showing all signals within the selected spin system as singlets. The new method can greatly facilitate the analysis of mixtures, as shown here for a mixture of Cinchona alkaloids (popular catalysts in asymmetric synthesis) and a mixture of glucocorticoids (used for treating conditions such as asthma).
Immobilization and Catalytic Conversion of Polysulfide by In‐Situ Generated Nickel in Hollow Carbon Fibers for High‐Rate Lithium–Sulfur Batteries
Authors: Liu Ying , Li Mingxu , Yang Rong , Meng Qinglong , Baek Dong‐Ho , Lim Hyung‐Tae , Kim Jae‐Kwang , Ahn Jou‐Hyeon 
Published: August 2024

AbstractLithium–sulfur (Li−S) batteries are considered promising energy‐storage systems because of their high theoretical energy density, low cost, and eco‐friendliness. However, problems such as the shuttle effect can result in the loss of active materials, poor cyclability, and rapid capacity degradation. The utilization of a structural configuration that enhances electrochemical performance via dual adsorption–catalysis strategies can overcome the limitations of Li−S batteries. In this study, an integrated interlayer structure, in which hollow carbon fibers (HCFs) were modified with in‐situ‐generated Ni nanoparticles, was prepared by scalable one‐step carbonization. Highly hierarchically porous HCFs act as the carbon skeleton and provide a continuous three‐dimensional conductive network that enhances ion/electron diffusion. Ni nanoparticles with superior anchoring and catalytic abilities can prevent the shuttle effect and increase the conversion rate, thereby promoting the electrochemical performance. This synergistic effect resulted in a high capacity retention of 582 mAh g−1 at 1 C after 100 cycles, providing an excellent rate capability of up to 3 C. The novel structure, wherein Ni nanoparticles are embedded in cotton‐tissue‐derived HCFs, provides a new avenue for enhancing electrochemical performance at high C rates. This results in a low‐cost, sustainable, and high‐performance hybrid material for the development of practical Li−S batteries.