bluuebunny/crossref_metadata_2025_split huggingface dataset:
Old Materials for New Functions: Recent Progress on Metal Cyanide Based Porous Materials
Authors: Xie Yi , Lin Rui‐Biao , Chen Banglin 
Published: November 2021

AbstractCyanide is the simplest ligand with strong basicity to construct open frameworks including some of the oldest compounds reported in the history of coordination chemistry. Cyanide can form numerous cyanometallates with different transition metal ions showing diverse geometries. Rational design of robust extended networks is enabled by the strong bonding nature and high directionality of cyanide ligand. By virtue of a combination of cyanometallates and/or organic linkers, multifunctional framework materials can be targeted and readily synthesized for various applications, ranging from molecular adsorptions/separations to energy conversion and storage, and spin‐crossover materials. External guest‐ and stimuli‐responsive behaviors in cyanide‐based materials are also highlighted for the development of the next‐generation smart materials. In this review, an overview of the recent progress of cyanide‐based multifunctional materials is presented to demonstrate the great potential of cyanide ligands in the development of modern coordination chemistry and material science.
Electromagnetic Interference Shielding Performance of Flexible, Hydrophobic Honeycomb‐Structured Ag@Ti3C2Tx Composites
Authors: Wang Xiaohan , Chen Yongqiang , Hu Feiyue , Zhang Shuang , Fan Bingbing , Min Zhiyu , Zhang Rui , Zhao Biao , Wang Hailong , Lu Hongxia , Wang Xiaohui 
Published: November 2021

AbstractNovel honeycomb‐structured Ag@Ti3C2Tx composites are prepared by a microwave‐assisted synthesis method using polymethyl methacrylate as an expendable template. The resulting Ag@Ti3C2Tx composites retain their original spherical morphology and exhibit hydrophobic performance, low thermal conductivity, and excellent electromagnetic interference (EMI) shielding performance. Remarkably, the Ag‐1.8@Ti3C2Tx composite attains electromagnetic interference shielding performance with a maximum average shielding effectiveness of 39.36 dB in the X‐band and 43.64 dB in the Ku‐band. This outstanding performance is the result of conduction loss, interface polarization between Ag nanoparticles and Ti3C2Tx nanosheets, and multi‐reflection and scattering caused by the hollow structure in the honeycomb‐structured Ag@Ti3C2Tx composites. Overall, the honeycomb‐structured Ag@Ti3C2Tx composites possess merits such as light weight, flexibility, hydrophobicity, and EMI shielding performance, suggesting great application potential in smart electronic devices.
In Situ Grown 1T′‐MoTe2 Nanosheets on Carbon Nanotubes as an Efficient Electrocatalyst and Lithium Regulator for Stable Lithium–Sulfur Full Cells
Authors: He Jiarui , Bhargav Amruth , Manthiram Arumugam 
Published: November 2021

AbstractLithium–sulfur batteries offer the advantage of high energy density at a low cost, but their viability is hindered by the polysulfide shuttle effect, sluggish reaction kinetics, and dendritic Li growth. To address these persistent challenges in a unified manner, a dual‐function, flexible, free‐standing framework by coupling catalytic and lithiophilic 1T′‐MoTe2 nanosheets with conductive carbon nanotubes (MoTe2‐CNT), which serve as a host for both a sulfur cathode (S/MoTe2‐CNT) and a lithium‐metal anode (MoTe2‐CNT/Li) is presented here. MoTe2‐CNT not only guides a uniform growth of lithium within the framework, but also forms a thin, unique sulfide‐rich solid‐electrolyte interphase (SEI) composed of lithium thiotellurate on the Li surface when paired with a sulfur cathode. This SEI stabilizes Li deposition, suppresses electrolyte decomposition, and prevents Li loss, thereby prolonging cycle life. Full coin cells with a very low negative to positive electrode capacity ratio of ≈2.5 and a high areal capacity of 7.6 mA h cm−2 display 75% capacity retention after 500 cycles. The pouch cells fabricated with MoTe2‐CNT deliver a high capacity of 1533 mA h g−1 and energy density of 319 Wh kg−1 at a low electrolyte‐to‐capacity ratio of ≈2.9 µL [mA h]−1 and a low electrolyte‐to‐sulfur ratio of 4.5 µL mg−1.
Severe visual loss caused by inhalational methanol poisoning in fireworks production: A report on 3 cases
Authors: Luo Lei , Zhu XueQin , Li JiMeng , Yang Feng , Xiong YanYan , Xie Ying 
Published: November 2021

AbstractBackgroundWorkers in fireworks production are mainly at risk for explosion injury. However, there are few reports on the consequences of methanol poisoning in fireworks laborers.Case PresentationWe report on three patients with visual loss caused by inhalation exposure to high concentrations of methanol, who were engaged in the granulation process of the fireworks manufacturing industry. They presented with severe metabolic acidosis and visual impairments, accompanied by headache, chest tightness, shortness of breath, dizziness, and vomiting. All were diagnosed with acute methanol poisoning. One patient developed bilateral blindness and two patients improved after timely hemodialysis treatment.ConclusionsThese case reports emphasize the risk of methanol poisoning in the fireworks industry or other factories using commercial alcohol with high methanol content. Early hemodialysis intervention and metabolic acidosis correction are crucial for rescuing visual impairment caused by methanol exposure. Awareness and supervision of commercial alcohol use are indispensable for similar industrial processes.
Circadian rhythm disruption exacerbates Th2‐like immune response in murine allergic airway inflammation
Authors: Cheng Feng‐Li , An Yun‐Fang , Xue Jin‐Mei , Wang Yan‐Jie , Ding Xue‐Wei , Zhang Yan‐Ting , Zhao Chang‐Qing 
Published: November 2021

AbstractBackgroundChronic jet lag (CJL)‐induced circadian rhythm disruption (CRD) is positively correlated with an increased risk of allergic diseases. However, little is known about the mechanism involved in allergic rhinitis (AR).MethodsAberrant light/dark cycles‐induced CRD mice were randomly divided into negative control (NC) group, AR group, CRD+NC group, and CRD+AR group (n = 8/group). After ovalbumin (OVA) challenge, nasal symptom scores were recorded. The expression of Occludin and ZO‐1 in both nasal mucosa and lung tissues was detected by reverse transcription–quantitative polymerase chain reaction (RT‐PCR) and immunohistochemical staining. The level of OVA–specific immunoglobulin E (sIgE) and T‐helper (Th)‐related cytokines in the plasma was measured by enzyme‐linked immunosorbent assay (ELISA), and the proportion of Th1, Th2, Th17, and regulatory T cell (Treg) in splenocytes was evaluated by flow cytometry.ResultsThe nasal symptom score in the CRD+AR group was significantly higher than those in the AR group with respect to eosinophil infiltration, mast cell degranulation, and goblet cell hyperplasia. The expression of ZO‐1 and Occludin in the nasal mucosa and lung tissues in the CRD+AR group were significantly lower than those in the AR group. Furthermore, Th2 and Th17 cell counts from splenocytes and OVA‐sIgE, interleukin 4 (IL‐4), IL‐6, IL‐13, and IL‐17A levels in plasma were significantly increased in the CRD+AR group than in the AR group, whereas Th1 and Treg cell count and interferon γ (IFN‐γ) level were significantly decreased in the CRD+AR group.ConclusionCRD experimentally mimicked CJL in human activities, could exacerbate local and systemic allergic reactions in AR mice, partially through decreasing Occludin and ZO‐1 level in the respiratory mucosa and increasing Th2‐like immune response in splenocytes.
Wearing a face mask during controlled‐intensity exercise is not a risk factor for exertional heatstroke: A pilot study
Authors: Sakamoto Taigo , Narita Hiroyuki , Suzuki Kensuke , Obinata Hirofumi , Ogawa Kei , Suga Ryotaro , Takahashi Haruka , Nakazawa Mayumi , Yamada Marina , Ogawa Satoo , Yokota Hiroyuki , Yokobori Shoji 
Published: November 2021

AimThis study aimed to measure the influence of wearing face masks on individuals’ physical status in a hot and humid environment.MethodsEach participant experienced different physical situations: (i) not wearing a mask (control), (ii) wearing a surgical mask, (iii) wearing a sport mask. An ingestible capsule thermometer was used to measure internal core body temperature during different exercises (standing, walking, and running, each for 20 min) in an artificial weather room with the internal wet‐bulb globe temperature set at 28°C. The change in the participants’ physical status and urinary liver fatty acid‐binding protein (L‐FABP) were measured.ResultsSix healthy male volunteers were enrolled in the study. In each participant, significant changes were observed in the heart rate and internal core temperatures after increased exercise intensity; however, no significant differences were observed between these parameters and urinary L‐FABP among the three intervention groups.ConclusionMask wearing is not a risk factor for heatstroke during increased exercise intensity.
On‐Surface Synthesis of Porphyrin‐Complex Multi‐Block Co‐Oligomers by Defluorinative Coupling
Authors: Kawai Shigeki , Ishikawa Atsushi , Ishida Shin‐ichiro , Yamakado Takuya , Ma Yujing , Sun Kewei , Tateyama Yoshitaka , Pawlak Rémy , Meyer Ernst , Saito Shohei , Osuka Atsuhiro 
Published: November 2021

AbstractOn‐surface chemical reaction has become a very powerful technique to synthesize nanostructures by linking small molecules in the bottom‐up approach. Given the fact that most reactants are simultaneously activated at certain temperatures, a sequential reaction in a controlled way has remained challenging. Here, we present an on‐surface synthesis of multi‐block co‐oligomers from trifluoromethyl (CF3) substituted porphyrin metal complexes. The oligomerization on Au(111) is demonstrated with a combination of bond‐resolved scanning probe microscopy and density functional theory (DFT) calculations. Even after the first oligomerization of single monomer unit, the termini of the oligomer keep the CF3 group, which can be used as a reactant for further coupling in a sequential order. Consequently, copper, cobalt, and palladium complexes of bisanthracene‐fused porphyrin oligomers were linked with each other in a designed order.
Glutamine conjugated organotin(IV) Schiff base compounds: Synthesis, structure, and anticancer properties
Authors: Sharma Shagun , Agnihotri Navneet , Kumar Keshav , Sihag Swati , Randhawa Vinay , Kaur Ramandeep , Singh Raghubir , Kaur Varinder 
Published: November 2021

AbstractHerein, glutamine conjugated organotin(IV) Schiff base compounds, [(SBGlu‐Naph)Sn (Me)2] (1), [(SBGlu‐Naph)Sn(n‐Bu)2] (2), [(SBGlu‐Sali)Sn (Me)2] (3), [(SBGlu‐Sali)Sn(n‐Bu)2] (4) and [(SBGlu‐Sali)Sn (Ph)2] (5), were synthesized by one‐pot reaction with an aldehyde (2‐hydroxy‐1‐naphthaldehyde) for 1 and 2, and 5‐methyl‐2‐hydroxybenzaldehyde (for 3–5) and respective diorganotin oxide. The compounds were characterized using elemental micro‐analyses, spectroscopic techniques (FT‐IR, 1H NMR, 13C NMR, and 119Sn NMR), mass spectrometry, and single‐crystal X‐ray diffraction analyses. Based on in‐silico ADME (absorption, distribution, metabolism, and excretion) and drug‐likeness properties, compounds 1, 3, and 4 were selected to investigate their DNA/Protein binding properties with calf thymus DNA (CT‐DNA) and bovine serum albumin (BSA) using spectrophotometry and spectrofluorimetry. The intercalative mode of binding with CT‐DNA was supported by molecular docking simulations. The emission spectral data of compounds with CT‐DNA showed 1 as a groove binder, and 3 and 4 as an intercalator which was confirmed by competitive displacement assays. Similarly, static and dynamic mode of interaction between the compounds and BSA was found. Furthermore, these compounds were screened for their cytotoxic activity against two human cancer cell lines; PC‐3 (Prostate) and Mg‐63 (Osteosarcoma) at different concentrations. Quantitative structure–activity relationship (QSAR)‐based regression models were developed and implemented on compounds 1, 3, and 4 that inferred compound 3 to be the most potential candidate for further in vivo studies.
Increased oilseed shelf life using peanut flour biopackages
Authors: Riveros Cecilia Gabriela , Grosso Antonella Luciana , Aguirre Alicia , Grosso Nelson Ruben 
Published: November 2021

AbstractThis study analyzed the ability of defatted peanut flour packaging to preserve chemical quality stability of sunflower seeds throughout storage. Sunflower seed samples packaged in defatted peanut flour pouches (RS‐DPFP), high‐barrier plastic pouches made of ethylene vinyl alcohol (RS‐EVOH) and plastic pouches made of polyethylene (RS‐PE) were stored for 30 days at room temperature. Peroxide values and conjugated dienes showed a lower increase in RS‐DPFP and RS‐EVOH than in RS‐PE samples during storage. The samples packaged in DPFP pouches exhibited similar changes in oleic/linoleic acid ratio and iodine value with respect to EVOH pouches during storage. A higher decrease in α‐tocopherol was observed in RS‐PE compared to RS‐DPFP and RS‐EVOH. After 30 days, RS‐PE presented the highest hexanal, 2‐octenal (E), hexanoic acid, and 1‐pentanol contents. DPFP delayed sunflower seeds deterioration, improving their shelf life during storage.
Enhancing the mechanical properties of photosensitive binder jetting PLA via dual curing and thermal treatment
Authors: Nanthananon Phornwalan , Tanodekaew Siriporn , Tesavibul Passakorn , Manotham Supalak , Kaewkong Pakkanun , Channasanon Somruethai 
Published: November 2021

AbstractThis study aims to enhance the mechanical properties of the 3D‐printed poly(lactic acid) (PLA) specimen fabricated by a photosensitive binder jetting via the method of dual curing and thermal treatment. The layer solidification was activated by light in light‐curing mode, and the combination of light and chemical in dual‐curing mode. The 3D‐printed specimens were then immediately subjected to thermal treatment at 120°C for 30 min. The effects on mechanical properties of 3D‐printed PLA specimens in terms of layer thickness, curing system, and thermal treatment were investigated using three‐point bending test. The results demonstrated that the dual curing improved monomer conversion and mechanical properties of the specimens in comparison with the light‐curing mode. The thermal treatment also increased monomer conversion and physically interfacial binding between PLA powder and binder matrix. The flexural modulus and strength of dual‐cured 3D‐printed PLA specimens after thermal treatment were increased by 79% and 81%, respectively, compared to those of light‐cured specimens before thermal treatment. Furthermore, their cytotoxicity test with the printing layer thicknesses of 0.2 and 0.25 by MTT assay revealed non‐toxic to MC3T3‐E1 cells. Therefore, the 3D‐printed PLA part in this study has a potential for biomedical applications.
Struggling with digitized historical newspapers: Contextual barriers to information interaction in history research activities
Authors: Kumpulainen Sanna , Late Elina 
Published: November 2021

AbstractOn account of the complexities related to the use of digitized newspapers, researchers may encounter barriers when interacting with the collections' content. Overcoming barriers that could influence their information interaction should enhance the accessibility and utility of the newspapers. Hence, the study examined the barriers faced in history‐research tasks involving interaction with digitized historical newspapers, with focus on the barriers' contexts and the related task‐based activities. The analysis employed two datasets, from in‐depth interviews and demonstrations of newspaper‐use situations. Content analysis from these complementary data showed that barriers arose in multiple contexts, connected with the collection, task, tools, and socio‐organizational setting. Most barriers were associated with collection context and occurred in information searching and selection activities and in working with information items. Barriers related to the task or to socio‐organizational context arose most often in the planning and monitoring activities and in synthesizing and reporting. Such research‐based insight into the barriers faced can aid in illuminating what is required for providing good support to researchers working with digital newspaper content.
Photoreverberation mapping of quasars in the context of Legacy Survey of Space and Time observing strategies
Authors: Jankov Isidora , Kovačević Anđelka B. , Ilić Dragana , Popović Luka Č. , Radović Viktor , Čvorović‐Hajdinjak Iva , Nikutta Robert , Sánchez‐Sáez Paula 
Published: November 2021

AbstractThe upcoming photometric surveys, such as the Rubin Observatory's Legacy Survey of Space and Time (LSST) will monitor unprecedented number of active galactic nuclei (AGN) in a decade‐long campaign. Motivated by the science goals of LSST, which includes the harnessing of broadband light curves of AGN for photometric reverberation mapping (PhotoRM), we implement the existing formalism to estimate the lagged response of the emission line flux to the continuum variability using only multi‐band photometric light curves. We test the PhotoRM method on a set of 19 artificial light curves simulated using a stochastic model based on the damped random walk process. These light curves are sampled using different observing strategies, including the two proposed by the LSST, in order to compare the accuracy of time‐lag retrieval based on different observing cadences. In addition, we apply the same procedure for time‐lag retrieval to the observed photometric light curves of NGC 4395, and compare our results to the existing literature.
Some properties of lemaitre regularization. II isosceles trajectories and figure‐eight
Authors: Titov Vladimir 
Published: November 2021

AbstractSome properties of the Lemaitre regularization in the planar 3 body problem are considered. Application of these properties to the degenerated case of an isosceles problem in the space of forms is studied. A number of the isosceles orbits is obtained using a suitable parametrization. Also, properties of such orbits are analyzed. The figure‐eight orbit is considered.
Enzyme immobilization: what have we learned in the past five years?
Authors: Almeida Francisco L. C. , Prata Ana S. , Forte Marcus B. S. 
Published: November 2021

AbstractImmobilized enzymes have been widely applied in several fields over the past years, and the number of studies on the topic has been rapidly increasing. This review aimed to examine changes and trends in enzyme immobilization research during the past five years. Data were collected from the Web of Science Core Collection database and analyzed using VOSviewer © software. A discussion is presented on the most productive countries, most cited authors, leading publications, main areas of research and industrial applications of immobilized enzymes. China, the USA, India, Brazil and Spain hold the largest numbers of published articles on the topic, and the two main areas of study are chemistry and biotechnology applied microbiology. Trend analysis showed that laccases and lipases were the most commonly used enzymes, whereas nanoparticles and metal–organic frameworks were the most commonly used enzyme supports. The results highlight that immobilization is used to modify several enzyme properties, such as stability, recovery and specificity. Conclusions and future perspectives in the field are also addressed. It is believed that the development of new, low‐cost supports and studies on the scale‐up of processes using immobilized enzymes constitute future research trends. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd
A green approach to the valorization of kraft lignin for the production of nanocomposite gels to control the release of fertilizer
Authors: Lotfy Vivian F. , Basta Altaf H. 
Published: November 2021

AbstractThe valorization of industrial by‐products is a green approach. This work investigates the valorization of kraft liquor from paper pulping as a precursor in the production of lignin‐based nanocomposites to control the release of monoammonium phosphate (MAP) fertilizer. These nanocomposites were prepared from the stoichiometry of lignin nanoparticles (LNPs) and chitosan (Cs). The lignin nanoparticles were synthesized by solvent exchange and dialysis using two polar solvents: tetrahydrofuran (THF) and ethylene glycol (EG). These LNPs were characterized by transmission electron microscopy (TEM), X‐ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and textural techniques. The TEM images showed that the shapes of LNPs based on THF (LNPT) and LNPs based on EG (LNPE) were spherical, with an average particle size of 300 ± 40 nm and 23 ± 6.5 nm, respectively. Textural characteristics and FTIR revealed no change in the chemical nature of the two synthesized LNPs, and their Brunauer, Emmett and Teller (BET) surface area and average pore diameter ranged from 0.78 to 1.58 m2 g−1, and 4.069 to 5.20 nm, respectively. Swelling, functional groups, and the thermal, morphology, and MAP release characteristics were investigated for unloaded and loaded chitosan‐LNP nanocomposites (Cs‐LNPs). The water‐swelling capacity of the nanocomposite gel was about 200%. The data indicated that the Cs‐LNP gels can be used as controlled release systems for releasing MAP fertilizer, with maximum releasing value observed for chitosan‐LNPT gel (65%). The kinetic of MAP release from the investigated nanocomposites was followed by the Ritger‐Peppas model with Fickian and quasi‐Fickian diffusion mechanisms. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd
A simplified integrated framework for predicting the economic impacts of feedstock variations in a catalytic fast pyrolysis conversion process
Authors: Wiatrowski Matthew R. , Dutta Abhijit , Pecha M. Brennan , Crowley Meagan , Ciesielski Peter N. , Carpenter Daniel 
Published: November 2021

AbstractFeedstock attributes of lignocellulosic biomass, such as particle size, compositional makeup, and moisture content, can vary substantially even within pre‐processed materials and have a significant effect on conversion in fast pyrolysis‐based processes. However, the economic impacts of these attributes are not well understood. To address this, biomass deconstruction phenomena captured with a versatile particle‐scale simulation were linked to techno‐economic impacts via reduced‐order models. Parametric analysis of the particle‐scale model, which was validated using literature data, was used in combination with multiple linear regression models to develop correlations between feedstock attributes and yields of pyrolysis oil, gas, and char. Yields were then correlated with the minimum fuel selling price (MFSP) using a techno‐economic model, bridging the gap between physics‐based biomass conversion simulations and predictions of MFSP for a catalytic fast‐pyrolysis process. Empirical correlations derived from the literature regarding the impact of mineral matter (ash) on oil yield were also considered. The model correlations deployed in the integrated framework capture the impacts of variation in feedstock attributes on the MFSP. Variations in ash were shown to have the biggest impact, varying MFSP by −13%/+22% due to catalytic effects and lower relative amounts of convertible lignocellulosic material. It was also found that, if ash can be controlled to low levels, the increased extractives in forest residues can help compensate for some yield losses associated with increased ash. Other inputs considered (particle size, moisture content, and reactor temperature) had relatively negligible effects on process economics within the ranges analyzed considering particle‐scale effects alone. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd