bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of Agricultural Practices Impact on the Development of Arbuscular Mycorrhizal Fungi
Authors: Brahima Ouattara , Sibirina Soro , Abdoulaye Koné N’golo , Nakpalo Silué , Daouda Koné 
Published: August 2023

In natural environments, the development of plants depends on the interactions they maintain with their environment, in particular with soil microorganisms such as arbuscular mycorrhizal fungi, especially since the used of inputs is scarce by the majority of farmers in Côte d’Ivoire. The present study was carried out to study the endomycorrhizogenic potential of the soils on which tomato, cashew and banana are grown. Place and Duration of Study: Soil sampling in bananas, cashews and tomatoes fields (July and August 2016), spore trapping in WASCAL (West African Science Service Center on Climate Change and Adapted Land Use) greenhouse in the city of Bingerville and spore extraction and identification in Laboratory of Biotechnology, Agriculture and Development of Biological Resources (September 2016 to March 2017). Material and Methods: Soil samples were taken away from the same depth, 10 to 20 cm, in cashew, tomato or banana fields. They were then used for trap pot culture by sorghum [Sorghum bicolor (L.)] and cowpea [Vigna ungugulata (L.) Walp.]. The wet sieving revealed spore density and morphological diversity. Results: Spores were more abundant in the soils sampled under cashew (22 spores / gram of soil) in comparison to banana (9 spores / gram of soil) and tomato (3 spores / gram of soil). There were a real diversity of glomeromycete in the different agrosystems. There is a great richness and diversity of AMF spore form under cashew (18 morphotypes) in Côte d'Ivoire compared to tomato (2 morphotypes) and banana (4 morphotypes). Conclusion: Land use system impact spore richness and diversity. Controlled mycorrhization of cashew, tomato and banana could be considered.
Prognostic Factors and Survival Outcomes Among Patients With Mycosis Fungoides in China
Authors: Chen Zhuojing , Lin Yuwei , Qin Yao , Qu Hui , Zhang Qiuli , Li Yingyi , Wen Yujie , Sun Jingru , Tu Ping , Gao Pei , Wang Yang 
Published: August 2023

ImportanceThere are limited prognostic statistics and data available on survival outcomes for patients with mycosis fungoides (MF) in Asia.ObjectiveTo determine the prognostic factors and survival outcomes of patients with MF among a cohort in China.Design, Setting, and ParticipantsThis was a retrospective cohort study of patients with MF who received treatment at a tertiary referral center for skin lymphoma (Peking University First Hospital, Beijing, China) from August 1, 2009, to August 31, 2021. Data were analyzed from September 1, 2021, to December 31, 2022.Main Outcomes and MeasuresOverall survival (OS), disease-specific survival (DSS), and progression-free survival (PFS); for prognostic factors, hazard ratios (HRs), and adjusted HRs (aHRs; adjusted for sex, age, and overall TNMB [tumor, node, metastasis, blood] stage) determined using the Cox proportional hazards model.ResultsThe study cohort comprised 461 patients with MF (median [range] age at diagnosis, 46 [5-87] years; 275 [59.7%] men and 186 [40.3%] women; 461 [100%] Chinese). The overall 5-year rate was 82.2% for OS, 83.5% for DSS, and 79.6% for PFS. Stage-specific 5-year OS rates were 95.7% for stage IA, 93.2% for IB, 95.7% for IIA, 70.1% for IIB, 55.3% for III, and 23.6% for IV. Compared with a UK cohort, our Chinese cohort had a younger median age at diagnosis (46 years vs 54 years) and a more favorable 5-year OS (82.2% vs 75.0%); however, after adjusting for age, the discrepancy in the 5-year OS rate was diminished (77.3% vs 76.4%). Cox models revealed that unfavorable predictors of OS, PFS, and DSS, respectively, were: age older than 60 years (aHR [95% CI], 2.25 [1.28-3.96]; 2.09 [1.16-3.76]; 2.27 [1.39-3.72]); advanced TNMB stage; advanced overall stage; large-cell transformation (aHR [95% CI], 2.16 [1.17-3.99]; 2.29 [1.21-4.33]; 2.21 [1.26-3.86]); and elevated lactate dehydrogenase levels (aHR [95% CI], 3.92 [1.64-9.36]; 4.77 [1.86-12.22]; 5.05 [2.23-11.42]). Biological sex and plaque lesion type were not associated with prognosis among this study cohort.Conclusion and RelevanceThe findings of this retrospective cohort study of patients with MF in China suggest that Asian patients are diagnosed at a younger age and have a higher 5-year OS compared with patients of other races in studies in other countries (predominantly White). Prognostic factors were similar to those of previous studies, except for patient sex and plaque lesion type.
Nanozyme‐Cosmetic Contact Lenses for Ocular Surface Disease Prevention
Authors: Liu Quanyi , Zhao Sheng , Zhang Yihong , Fang Qi , Liu Wanling , Wu Rong , Wei Gen , Wei Hui , Du Yan 
Published: August 2023

AbstractEfficiently balancing excess reactive oxygen species (ROS) caused by various factors on the ocular surface is a promising strategy for preventing the development of ocular surface diseases (OSDs). Nevertheless, the conventional topical administration of antioxidants is limited in efficacy due to poor absorption, rapid metabolism, and irreversible depletion, which impede their performance. To address this issue, contact lenses embedded with antioxidant nanozymes that can continuously scavenge ROS, thereby providing an excellent preventive effect against OSDs are developed. Specifically, Prussian blue family nanozymes are chosen based on their multiple antioxidant enzyme‐like activities and excellent biocompatibility. The diverse range of colors made them promising candidates for the development of cosmetic contact lenses (CCLs) as a substitute for conventional pigments. The efficacy of nanozyme‐CCLs is demonstrated in rabbits and rats exposed to a high risk of developing OSDs. These OSDs' prevention nanozyme‐CCLs can pave the way for CCLs toward powerful wearable biomedical devices and provide novel strategies for the rational utilization of nanomaterials in clinical practice.
Remote Selective C−H Halogenation of Arylphosphine Oxides with Ferric Halides
Authors: Yu Hong , Lin Xiuhua , Xu Guang , Yin Tingrui , Zhang Ying , Liu Jinpeng , Chen Jian , Meng Sixuan , Yuan Jia , Dang Li , Yu Guang‐Ao 
Published: August 2023

AbstractWe developed the remote selective C−H bromination for the synthesis of C4′‐brominated biarylphosphine oxides using FeBr3 as a brominating reagent. C3′‐Brominated products were obtained in reactions with substrates bearing a 2,4,6‐triisopropyl substituent on the bottom ring. Moreover, direct access to C5‐chlorinated peri‐substituted(1‐naphthalenyl)phosphines is developed using FeCl3 as a chlorinating reagent. These halogenated compounds can be utilized for cross‐coupling reactions to construct functionalized phosphine oxides.
Traceless Directing Group Enabled One‐Pot Regiospecific Synthesis of 2,3‐Diaryl‐4‐Fluoropyrroles
Authors: Wang Dan , Tian Yu‐Ting , Nie Jing , Jasiński Marcin , Tang Xiaodong , Ma Jun‐An 
Published: August 2023

AbstractWe describe a traceless group directed one‐pot regiospecific cycloaddition strategy to construct 4‐fluorinated pyrroles, which showcased promising anti‐inflammatory activity previously. By taking advantage of this protocol, a range of 4‐fluoropyrroles which are inaccessible via previous methods can be obtained, and a tentative reaction mechanism was proposed based on observed intermediates.
Synthesis of 5‐Trifluoromethylpyrroles from Heating‐Induced Annulation of Pyridinium 1,4‐Zwitterionic Thiolates with CF3‐Imidoyl Sulfoxonium Ylides
Authors: Ling Sihao , Zhang Yu , Chen Zhengkai , Wu Xiao‐Feng 
Published: August 2023

AbstractA heating‐induced desulfuration annulation of pyridinium 1,4‐zwitterionic thiolates and CF3‐substituted imidoyl sulfoxonium ylides has been achieved, allowing a route to biologically important 5‐trifluoromethylpyrroles. The transformation proceeds through an unusual ((3+3)‐1) pathway under metal‐free conditions with the extrusion of 4‐methoxypyridine, sulfur and DMSO. The scale‐up reaction and further transformation of the obtained pyrrole products have been performed to demonstrate the synthetic utility of the developed method.
Syntheses and Structures of 5‐Membered Heterocycles Featuring 1,2‐Diphospha‐1,3‐Butadiene and Its Radical Anion
Authors: Sharma Mahendra K. , Weinert Hanns M. , Li Bin , Wölper Christoph , Henthorn Justin T. , Cutsail George E. , Haberhauer Gebhard , Schulz Stephan 
Published: August 2023

AbstractLGa(P2OC)cAAC2features a 1,2‐diphospha‐1,3‐butadiene unit with a delocalized π‐type HOMO and a π*‐type LUMO according to DFT calculations. [LGa(P2OC)cAAC][K(DB‐18‐c‐6)]3[K(DB‐18‐c‐6] containing the 1,2‐diphospha‐1,3‐butadiene radical anion3⋅−was isolated from the reaction of2with KC8and dibenzo‐18‐crown‐6.3reacted with [Fc][B(C6F5)4] (Fc=ferrocenium) to2and with TEMPO to [L−HGa(P2OC)cAAC][K(DB‐18‐c‐6)]4[K(DB‐18‐c‐6] containing the 1,2‐diphospha‐1,3‐butadiene anion4−. The solid state structures of2,3K(DB‐18‐c‐6], and4[K(DB‐18‐c‐6] were determined by single crystal X‐ray diffraction (sc‐XRD).
Selektivitätskontrolle des Ligandenaustauschs am Kohlenstoff in α‐metallierten Yliden als Zugang zu Ketenylanionen**
Authors: Krischer Felix , Jörges Mike , Leung Tsz‐Fai , Darmandeh Heidar , Gessner Viktoria H. 
Published: August 2023

AbstractKürzlich berichteten wir, dass α‐metallierte Ylide einen Phosphan‐CO‐Ligandenaustausch eingehen und darüber Zugang zu isolierbaren Ketenylanion liefern. Systematische Studien an Tosyl‐substituierten Yldiiden der Form R3P=C(M)Ts (M=Li, Na, K) zeigen nun, dass die Carbonylierung auch zu einer konkurrierenden Metallsalzeliminierung (MTs) führen kann. Diese Nebenreaktion kann durch die Wahl des Phosphans, des Metallkations, des Lösungsmittels und der Zugabe geeigneter Coliganden kontrolliert werden, was die selektive Isolierung des Ketenylanions [Ts−CCO]M (2‐M) ermöglicht. Die Komplexierung von 2‐Na durch Kronenethern oder Kryptanden ermöglichte zudem die Strukturaufklärung des ersten freien Ketenylanions [Ts−CCO], welches eine annähernd lineare S−C−O‐Einheit aufweist, was auf einen höheren Anteil der Ynolat‐Grenzstruktur hindeutet. DFT‐Studien zeigen jedoch eine hohe negative Ladung am Ketenylkohlenstoff, was sich in der selektiven Reaktivität am C1‐Atom widerspiegelt. Die vorgestellten Ergebnisse liefern wichtige Informationen über die Selektivitätskontrolle der Carbonylierung von α‐metallierten Ylide, was für künftige Anwendungen unabdingbar ist.
Polymeric Carbon Nitride with Chirality Inherited from Supramolecular Assemblies
Authors: Azoulay Adi , Aloni Sapir Shekef , Xing Lidan , Tashakory Ayelet , Mastai Yitzhak , Shalom Menny 
Published: August 2023

AbstractThe facile synthesis of chiral materials is of paramount importance for various applications. Supramolecular preorganization of monomers for thermal polymerization has been proven as an effective tool to synthesize carbon and carbon nitride‐based (CN) materials with ordered morphology and controlled properties. However, the transfer of an intrinsic chemical property, such as chirality from supramolecular assemblies to the final material after thermal condensation, was not shown. Here, we report the large‐scale synthesis of chiral CN materials capable of enantioselective recognition. To achieve this, we designed supramolecular assemblies with a chiral center that remains intact at elevated temperatures. The optimized chiral CN demonstrates an enantiomeric preference of ca. 14 %; CN electrodes were also prepared and show stereoselective interactions with enantiomeric probes in electrochemical measurements. By adding chirality to the properties transferrable from monomers to the final product of a thermal polymerization, this study confirms the potential of using supramolecular precursors to produce carbon and CN materials and electrodes with designed chemical properties.
Syntheses and Structures of 5‐Membered Heterocycles Featuring 1,2‐Diphospha‐1,3‐Butadiene and Its Radical Anion
Authors: Sharma Mahendra K. , Weinert Hanns M. , Li Bin , Wölper Christoph , Henthorn Justin T. , Cutsail George E. , Haberhauer Gebhard , Schulz Stephan 
Published: August 2023

AbstractLGa(P2OC)cAAC 2 features a 1,2‐diphospha‐1,3‐butadiene unit with a delocalized π‐type HOMO and a π*‐type LUMO according to DFT calculations. [LGa(P2OC)cAAC][K(DB‐18‐c‐6)] 3[K(DB‐18‐c‐6] containing the 1,2‐diphospha‐1,3‐butadiene radical anion 3⋅− was isolated from the reaction of 2 with KC8 and dibenzo‐18‐crown‐6. 3 reacted with [Fc][B(C6F5)4] (Fc=ferrocenium) to 2 and with TEMPO to [L−HGa(P2OC)cAAC][K(DB‐18‐c‐6)] 4[K(DB‐18‐c‐6] containing the 1,2‐diphospha‐1,3‐butadiene anion 4−. The solid state structures of 2, 3K(DB‐18‐c‐6], and 4[K(DB‐18‐c‐6] were determined by single crystal X‐ray diffraction (sc‐XRD).
Selectivity Control of the Ligand Exchange at Carbon in α‐Metallated Ylides as a Route to Ketenyl Anions**
Authors: Krischer Felix , Jörges Mike , Leung Tsz‐Fai , Darmandeh Heidar , Gessner Viktoria H. 
Published: August 2023

Abstractα‐Metallated ylides have recently been reported to undergo phosphine by CO exchange at the ylidic carbon atom to form isolable ketenyl anions. Systematic studies on the tosyl‐substituted yldiides, R3P=C(M)Ts (M=Li, Na, K), now reveal that carbonylation may lead to a competing metal salt (MTs) elimination. This side‐reaction can be controlled by the choice of phosphine, metal cation, solvent and co‐ligands, thus enabling the selective isolation of the ketenyl anion [Ts−CCO]M (2‐M). Complexation of 2‐Na by crown ether or cryptand allowed structure elucidation of the first free ketenyl anion [Ts−CCO]−, which showed an almost linear Ts−C−C linkage indicative for a pronounced ynolate character. However, DFT studies support a high charge at the ketenyl carbon atom, which is reflected in the selective carbon‐centered reactivity. Overall, the present study provides important information on the selectivity control of ketenyl anion formation which will be crucial for future applications.
Controlled Radical Copolymerization toward Well‐Defined Fluoropolymers
Authors: Chen Kaixuan , Guo Xing , Chen Mao 
Published: August 2023

AbstractIn the past 80 years, fluoropolymers have found broad applications in both industrial and academic settings, owing to their unique physicochemical properties. Copolymerizations of fluoroalkene feedstocks present an important avenue to obtain high‐performance materials by merging intrinsic attributes of fluorocarbons and great versatility of comonomers. Recently, while massive investigations have disclosed the great potentials of precisely synthesized polymers, researchers have made considerable efforts to approach well‐defined fluorinated copolymers. This minireview discusses challenges in controlled radical copolymerizations (CRCPs) of fluoroalkenes and provides a concise perspective on recent progress in CRCPs of fluoroalkenes (e.g., tetrafluoroethylene, chlorotrifluoroethylene, hexafluoropropene, perfluoroalkyl vinyl ethers) with non‐fluorinated vinyl comonomers, which have enabled on‐demand preparations of various main‐chain fluoropolymers with predefined molar masses, low dispersities, as well as regulable chemical compositions and sequences. The synthetic advantages of CRCPs will promote controlled and facile access to customized fluoropolymers for high‐tech applications such as batteries, coatings and so on.
Dryoptkirbioside, A New Fructofuranoside Glycerol, and Other Constituents from Dryopteris kirbi Hook et Grav Rhizomes
Authors: Matchide Marie Germaine T. , Hnin Saw Yu Yu , Nguekeu Yves M. Mba , Matheuda Elodie Gaële , Nghokeng Josker , Tabakam Gaetan T. , Djoumbissie Raymonde A. Dzatie , Ngouela Silvère Augustin , Lee Yuan‐E , Tene Mathieu , Morita Hiroyuki , Awouafack Maurice Ducret 
Published: August 2023

AbstractA new fructofuranoside glycerol, dryoptkirbioside (1), along with thirteen known compounds (2‐14), was isolated from the MeOH extract of Dryopteris kirbi rhizomes by silica gel column chromatography, Sephadex LH‐20 column chromatography, and semipreparative HPLC. The structure of the new compound was determined by analyses of its spectroscopic data including nuclear magnetic resonance (NMR), and high‐resolution electrospray ionisation mass spectrometry (HR‐ESI‐MS) and chemical conversions. The hexane‐soluble portion and the EAFA fraction showed strong activities against lung (A549), breast (MCF‐7), and cervical (HeLa) human cancer cell lines (IC50 values ranging from 4.0 to 8.8 μg/mL). Aspidinol P (5) and aspidinol B (6) exhibited moderate to low cytotoxicity on the three cell lines (IC50 values ranging from 20.4 to 58.7 μM). The MeOH extract and hexane‐soluble portion had excellent activities against Staphylococcus aureus and Bacillus subtilis (MICs 11.7 and 23.4 μg/mL), whereas the AcOEt‐ and BuOH‐soluble portions were significantly active on S. aureus (MICs 46.9 and 93.8 μg/mL). The main fractions EAFB, EAFC and nBFB displayed excellent activity against S. aureus (MICs 11.7 and 23.4 μg/mL). Aspidinol B (6) had significant activity, while aspidinol P (5) was moderately active against S. aureus and B. subtilis (MICs 42.0 and 89.5 μM).
Noncalcifying type of calcifying epithelial odontogenic tumor: A rare case report and literature review
Authors: Zouaghi Hela , Garma Maroua , Slim Afef , Chokri Abdellatif , Njima Manel , Selmi Jamil 
Published: August 2023

Key Clinical MessageThere has been a recent spike in reporting of noncalcifying variants of CEOT with the WHO 2022 classification of head and neck tumors. The present case describes a rare histopathological variant of CEOT of which a handful of cases have been reported.AbstractThis work aimed to report a rare case of noncalcifying type of Pindborg Tumor involving the right mandible. The absence of calcifications in the calcifying epithelial odontogenic tumor presents a diagnostic challenge and prognostic implications. A literature review of the 16 reported clinical cases of this scarce variant was performed.
Thermochromic Hydrogels with Opaque‐Transparent Gradient Transition for Switchable Window and Temperature Monitor
Authors: Gao Yang , Li Kunming , Ren Xiuyan , Gao Guanghui 
Published: August 2023

AbstractIn recent years, the thermochromic hydrogel was acted as suitable sandwiching material to adjust light transmission. However, to accurately control the thermochromic temperature in a wide range still was a significant challenge. Here, a simple method was explored to prepare hydrogels with gradient opaque‐transparent transition thermochromic temperature from 5 °C to 53 °C, which was regulated by the aggregation state of sodium dodecyl sulfate micelles by adding potassium tartrate hemihydrate and cations. Using Li+, Na+, and K+ as cations, the accuracy was controlled at 1 °C. Moreover, the transmittance of the hydrogel was not changed when the thermochromic temperature was adjusted. As a result, an intelligent window was fabricated by utilizing thermochromic hydrogel as a sandwiching layer into the outer glass layers, which could effectively and stably regulate the visible and infrared light. The temperature monitors/detectors were also designed, which showed excellent temperature monitoring/detecting ability. Therefore, this low‐cost, high‐efficient, large‐scale prepared thermochromic hydrogel provided more potential for intelligent temperature devices.
Iron‐Catalyzed Alkenylzincation of Internal Alkynes†
Authors: Wang Wei‐Na , Huang Qiang , Jin Ye , Zhou Qi‐Lin , Zhu Shou‐Fei 
Published: August 2023

Comprehensive SummaryThe alkenylzincation of internal alkynes is an effective method for the synthesis of multi‐substituted conjugated dienes; however, the current catalytic systems for this reaction are limited in terms of substrate scope and selectivity control, which restricts its practical applications. Herein, we report the first iron‐catalyzed alkenylzincation of internal alkynes, which features mild conditions, simple operation, broad substrate scope (including aryl/alkyl, diaryl, and dialkyl acetylenes), excellent functional group tolerance (tolerating highly active functional groups such as ester, methylthio, amide, sulfonyl, cyano, etc.), and high activity (with a turnover number of up to 11500, the highest record for carbometallation reactions). Notably, the catalytic system described in this article also realized the highly selective vinylzincation of unfunctionalized internal alkynes as well as the alkenylzincation of unsymmetrical diarylacetylenes and dialkyl acetylenes, which have not been achieved with other catalytic systems reported in the literatures. The current study provides a highly selective access to synthetically important multi‐substituted conjugated dienes.
A Series of Cobalt bis(Thiosemicarbazone) Catalysts for Effective Photocatalytic Hydrogen Evolution Reaction
Authors: Papadakis Michael , Landrou Georgios , Poisson Marie , Delmotte Léa , Achileos Katerina , Bertaina Sylvain , Hardré Renaud , Ladomenou Kalliopi , Coutsolelos Athanassios G. , Orio Maylis 
Published: August 2023

AbstractIn order to diminish environmental issues such as global warming due to increased carbo dioxide (CO2) emissions, considerable efforts have been made in the research community. Photocatalytic hydrogen (H2) production is a very important way towards this goal, since sunlight is an abundant source of energy and H2 is a clean fuel, producing no greenhouse gases. Inexpensive, stable and non‐toxic carbon dots were easily synthesized and used as photosensitizers in water in the presence of a series of molecular cobalt catalysts (CoTSC). The catalysts were thiosemicarbazone‐based complexes able to transfer electrons for hydrogen evolution reaction. Under visible light irradiation, the nitrogen‐doped carbon dots (NCdots) transfer the photoexcited electrons to the catalyst, producing an activity of 358 μmol gNCdot−1 h−1 (TONCo=570) for CoTSC−N(CH3)2CN after 24 h of irradiation. These types of molecular catalysts display great activity and stability in combination with the easily synthesized and modified carbon dot materials.
Chiral Substitution on Spaced Cations Lead to Improved Properties and Reversible Phase Transition, Broadband Emission in Parent Compound (3APr)PbBr4
Authors: Wan Ming‐Yang , Tang Yun‐Zhi , Tan Yu‐Hui , Li Yi‐Luo , Wang Fang‐Xin , Liao Juan , Wang Li‐Juan 
Published: August 2023

AbstractHybrid organic‐inorganic perovskites (HOIP) due to their excellent optoelectronic properties and flexible structure have attracted enthusiastic interest. In particular, introducing chirality is a method to enhance compound performance. Herein, we report a multifunctional compound: (3APr)PbBr4 (1) (3APr=3‐Pyrrolidinamine) and corresponding enantiomer R and S‐(3APr)PbBr4 (R/S‐2). Compound 1 show reversible solid‐state phase transition, step‐like dielectric anomaly and broadband yellow emission under uv light excitation. Accompany with phase transition, structure dimension transition from 2D to 1D without space group change. Through introduce chirality, the R/S‐2 display mirror image 1D structural relationship, increased quantum yield from 3.43 % (1) to 13.65 % (R/S‐2) and exhibits corresponding CD signals. Then combine to first‐principles analysis, it was found that fluorescence is attributed to the formation of instantaneous defects during excitation, leading to the formation of self‐trapped excitons (STEs). This finding will further promote the development of multifunctional compound and the study of chiral substitution enhance compound properties.