Royal Society Open Science最新文献

{"title":"Interaction of Remalan Brilliant Blue R dye with <i>n</i>-alkyltrimethylammonium chloride surfactants: conductometric and spectroscopic investigations.","authors":"Ashraf El-Hashani, Manish Kumar Sah, Khaled Edbey, Rehab Gaber Ismael, Dileep Kumar, Ajaya Bhattarai","doi":"10.1098/rsos.241344","DOIUrl":"10.1098/rsos.241344","url":null,"abstract":"<p><p>Micellization behaviour, thermodynamics and dye-surfactant interactions are the main topics of this investigation into the relationship between Remalan Brilliant Blue R (RBBR) dye and <i>n</i>-alkyltrimethylammonium chloride (C _<i>n</i> TAC; <i>n</i> = 12, 14, 16 and 18) surfactants. Conductometric analysis revealed that the critical micelle concentration decreased with increasing alkyl chain length, suggesting that longer chains formed better micelles. Due to electrostatic interactions, spectrophotometric analyses revealed notable alterations in RBBR absorption following contact with C _<i>n</i> TAC. Benesi-Hildebrand and Scott equations were used to compute the binding constant (<i>K</i> _b), which increased with chain length, indicating stronger dye-micelle interactions. The spontaneous interactions between RBBR and micelles were confirmed by thermodynamic analysis, which showed negative Gibbs free energy values (Δ<i>G</i>). The stability of dye-micelle complexes is attributed to hydrophobic forces, as seen by the greater negative Δ<i>G</i> that was produced by longer alkyl chains. Interestingly, increased surfactant concentrations changed equilibrium and decreased dye adsorption by breaking up pre-formed RBBR-C _<i>n</i> TAC complexes. These results highlight how important the length of the alkyl chain is for micelle formation, thermodynamic parameters and dye-surfactant interactions. As the length of the chain grew, the sequence of RBBR binding strength was found to be C₁₂TAC < C₁₄TAC < C₁₆TAC < C₁₈TAC.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"241344"},"PeriodicalIF":2.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11836433/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143459428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bilingual language control during single-language production: does relocation to a new linguistic environment change it?","authors":"Angela de Bruin, Cong Liu, Danijela Trenkic, Marion Coumel","doi":"10.1098/rsos.241071","DOIUrl":"10.1098/rsos.241071","url":null,"abstract":"<p><p>A bilingual's two languages are simultaneously active and competing for selection, even when only one language is used. To manage this competition, bilinguals apply language control. We examined how bilinguals apply control across two single-language tasks and how this language control might adapt to the language environment bilinguals live in. We conducted a longitudinal study with Mandarin-English bilinguals who moved from China to the UK and a control group staying in China. Participants completed a picture-naming task and a verbal-fluency task twice, approximately seven months apart. We examined language order effects by comparing performance in each language when it was used first versus after the other language. While the L2 benefited from being used second, L1 performance benefited less or even deteriorated after L2 use. This suggests bilinguals proactively applied language control, especially during L2 use, to manage the anticipated language competition from the L1. However, these effects did not change after relocation to the UK, nor did they differ between the groups. This suggests that while language control is a core part of language production, the language environment a bilingual lives in might not have a defining impact on the exact way this language control is applied.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"241071"},"PeriodicalIF":2.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11838181/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143459454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The predictive outfielder: a critical test across gravities.","authors":"Borja Aguado, Joan López-Moliner","doi":"10.1098/rsos.241291","DOIUrl":"10.1098/rsos.241291","url":null,"abstract":"<p><p>Intercepting moving targets is a widespread challenge across many species. In humans, heuristics that use optic variables have excelled in guiding interception, relying on a closed-loop system to couple optic variables directly with direction of locomotion. This contrasts with models that explicitly recover final positions from initial trajectory conditions. However, comparing these different approaches using empirical data is challenging, as they often predict similar locomotion trajectories. We present a model based on optic variables that continuously updates predictions on the landing position in the three-dimensional scene and remaining flight time based on the outfielder's real-time movements. A distinct feature is the model's adaptability to different gravitational accelerations, making its predictions inherently tailored to specific environments. By actively integrating gravity, our model produces trajectory predictions that can be validated against actual paths. To compare our model with previous ones, we conducted experiments within virtual reality, strategically varying simulated gravity and physical size. The variation in gravity resulted in qualitatively distinct predictions between heuristics based solely on optic variables and our model, which incorporates gravity. The empirical trajectories, kinematic patterns and timing responses aligned well with our model's predictions, emphasizing the importance of including environmental constants.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"241291"},"PeriodicalIF":2.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11836427/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143459496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transmission of yeast and bacterial symbionts between sexual partners in <i>Drosophila suzukii</i> and <i>Drosophila melanogaster</i>.","authors":"Robin Guilhot, Anne Xuéreb, Simon Fellous","doi":"10.1098/rsos.241149","DOIUrl":"10.1098/rsos.241149","url":null,"abstract":"<p><p>Sexually transmitted symbionts can substantially affect the performance and evolution of their hosts. From a pest control perspective, the sexually transmitted microorganisms of insects can be considered powerful biological control agents or probiotics. The sterile insect technique (SIT) is currently being developed as a new tool to control <i>Drosophila suzukii</i>, a major crop pest. With considerable numbers of mass-reared insects released to mate with wild individuals, understanding how microbiota transfers between adult insects is necessary not only to improve the effectiveness of the technique but also to prevent the potential spread of non-native and harmful microorganisms in wild arthropod populations and their environment. We investigated the sexual transmission of yeast and bacterial symbionts in <i>Drosophila suzukii</i> and in the universal model <i>Drosophila melanogaster</i>. In an ecologically realistic set-up, we combined behavioural and microbiological measurements using flies associated with four microorganisms. We detected microbial transmission more frequently in mated flies, which was mostly influenced by the identity and density of microbial strains in the donor and recipient hosts. Our results suggest the importance of using hosts associated with several microorganisms in microbiota transmission studies, open new perspectives for crop protection and point to an overlooked non-target effect of the SIT.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"241149"},"PeriodicalIF":2.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11836538/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143459499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two new doping-free manufacturing processes for bread-derived carbon electrodes with control over micro- and macro-topological surface features.","authors":"David Bujdos, Zachary Kuzel, Adam Wood","doi":"10.1098/rsos.240953","DOIUrl":"10.1098/rsos.240953","url":null,"abstract":"<p><p>Pyrolyzed carbon electrodes (PCEs) can provide sustainable alternatives in electric devices, but it is difficult to control their surface geometries during their semi-destructive fabrication procedure. Impressive contributions have been made to the field of PCE fabrication in terms of the nanoscale, functionalization, and separation applications; however, further progress towards an emphasis on a sustainable life cycle is the next step forward. Here, we propose two new methodologies for creating sustainable PCEs: stamping, where a user-designed, 3D printed electrode precursor (EP) imparts a shape on an organic material, and reconstitution, where the same EP acts as a mould as a mixture of agitated organic material and water dries to leave behind a rigid shape. Both methods allow for the reuse of the EP and the upcycling of biologically derived waste products as a pyrolytic input, and they do not require chemical modification. A comparison of the two methodologies is discussed as surface features of PCEs scale by a factor of 0.78 during the reconstitution process and by a factor of 0.68 during the stamping process. These PCEs maintain defined structures on the micro-scale and demonstrate previously unachievable resolution to the naked eye prior to these two novel pathways.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"240953"},"PeriodicalIF":2.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11835498/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143459433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental assessment of dry water materials for inhibiting explosion under the coal gasification atmosphere.","authors":"Guangqian Liang, Peikai Luo","doi":"10.1098/rsos.241395","DOIUrl":"10.1098/rsos.241395","url":null,"abstract":"<p><p>This study focused on the inhibitory effects of dry water materials on the coal dust explosion characteristics in the coal hydrogenation process by adopting a 20 l explosion device. Additionally, the inhibitory effects of dry water material were compared with SiO₂ and NH₄H₂PO₄. The results showed that 10 wt% dry water materials notably delay the arrival time of the peak explosion pressure, significantly inhibiting the initial energy release during the explosion, resulting in the maximum rate of explosion pressure rise decreasing by 61.96%. As the dry water material adds up to 50 wt%, the maximum explosion pressure significantly reduced to 0.258 MPa and delayed by 431.1 ms. The flame propagation velocity reduced from 2.19 to 0.33 m s^-1. In addition, dry water material, with its excellent heat absorption and adsorption and isolation properties, had more significant inhibitory effects than SiO₂ and NH₄H₂PO₄.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"241395"},"PeriodicalIF":2.9,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813566/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143410151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eco-friendly synthesis of NiO and Ag/NiO nanoparticles: applications in photocatalytic and antibacterial activities.","authors":"T N Ravishankar, A Ananda, B M Shilpa, J R Adarsh","doi":"10.1098/rsos.241733","DOIUrl":"10.1098/rsos.241733","url":null,"abstract":"<p><p>Herein, NiO and Ag/NiO NPs were produced via the solution combustion method using nickel nitrate and silver nitrate as oxidizers and <i>Cocos nucifera</i> water as a fuel at 450°C. The study also explores their applications in photocatalytic dye degradation, H₂ production and antibacterial properties. The primary advantage of using <i>C. nucifera</i> water as a green fuel in the solution combustion method is that it serves a dual purpose-both as a fuel and as a solvent. <i>This eliminates the need for additional water to create a homogeneous redox mixture of fuel and oxidant in the experimental procedure</i>. X-ray diffraction confirmed the existence of Ag in the bunsenite form of rhombohedral structure with a simple cubic system, with particles sized at 31-44 nm. Energy-dispersive X-ray spectroscopy revealed Ni, O and Ag weight percentages of 48.2, 44.5 and 7.3%, respectively. X-ray photoelectron spectroscopy confirmed the formation of Ag in NiO nanostructure. UV-visible spectrometry showed reduced band gap energy of Ag/NiO NPs (3.03-2.87 eV) compared to the bare NiO NPs (3.21 eV), red shift of the optical response towards the visible region after doping Ag into the NiO. The 0.3 wt% Ag/NiO NPs showed the highest quantum efficiency (0.781) among the other synthesized NPs. Fourier-transform infrared spectroscopy revealed absorption bands in the range of 460-900 cm^-1 stretching vibrations of Ni-O and Ag-O. Photoluminescence spectroscopy indicated that a doping concentration of 0.3 wt% Ag effectively introduces donor levels, defect levels and surface trap states within the NiO nanocrystalline structure, enhancing charge carrier separation and reducing recombination. Scanning electron microscopy revealed a voluminous, porous surface morphology characterized by numerous voids, resulting from the release of various combustible gases during the combustion process. Transmission electron microscopy images showed that most particles were spherical, irregular in size and well-distributed, with minimal aggregation with an average particle size of 25.8 nm. BET analysis of both NiO and 0.3 wt% Ag/NiO NPs exhibited type IV adsorption isotherms, indicating mesoporous structures and a clear monolayer-multilayer adsorption process, 0.3 wt% Ag/NiO NPs showed the highest surface area (170 m² g^-1) compared to the NiO (130 m² g^-1) NPs. Ag/NiO NPs has demonstrated a promising H₂ evolution rate of 1212 μmol g⁻¹ under visible light illumination in a water/ethanol system. The trypan blue dye degradation reaches up to 98% and has moderate stability for the reusable photocatalysis process. The synthesized NPs exhibited significantly enhanced antibacterial activity against a range of bacterial strains.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"241733"},"PeriodicalIF":2.9,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813582/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143410149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative study of two common methods for the determination of total mercury in soil.","authors":"Pinzhu Qin, Ziyu Cai, Cuilan Wei, Ying Guan, Bowen Li, Jiali Huang, Xiamin Cheng","doi":"10.1098/rsos.240757","DOIUrl":"10.1098/rsos.240757","url":null,"abstract":"<p><p>Cold atomic absorption spectrophotometry and atomic fluorescence methods were employed to ascertain the total mercury concentration in soil samples. A systematic comparison and analysis were conducted on the operational procedures, precision and detection limits of these methodologies. The standard curve for total mercury determination in soil using the atomic fluorescence method is <i>y</i> = 851.98<i>x</i>+16.771 (<i>R</i> ² = 0.9996, 0-2.5 µg l^-1), with a detection limit of 0.0006 mg kg^-1. This method demonstrates superior precision and accuracy not only for samples with high and medium concentrations but also for those with low concentrations. For the cold atomic absorption spectrophotometry method, the standard curve for total mercury determination is <i>y</i> = 0.0547<i>x</i> + 0.0047 (<i>R</i> ² = 0.9998, 0-15 µg l^-1). For high-concentration samples, the curve is <i>y</i> = 0.0007<i>x</i> - 0.0003 (<i>R</i> ² = 0.9998, 0-600 µg l^-1). The detection limit for this method is 0.06 μg kg^-1, indicating better sensitivity and accuracy compared with the atomic fluorescence method. While the precision for low-concentration (0.017 ± 0.003 mg kg^-1) samples is moderate, it is higher for medium (0.030 ± 0.003 mg kg^-1) and high-concentration (0.590 ± 0.05 mg kg^-1) samples. Overall, there is no significant difference between the two detection methods. However, the cold atomic absorption spectrophotometry method has the advantage of not requiring pre-treatment, making it more convenient and environment friendly.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"240757"},"PeriodicalIF":2.9,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813565/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143410140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel, nanomagnetic and recoverable copper(0)-catalyst in one-pot access to 1,4-disubstituted 1,2,3-triazoles and 5-substituted 1<i>H</i>-tetrazoles in water.","authors":"Mohammad Amiri, Nastaran Bagherzadeh, Ali Reza Sardarian","doi":"10.1098/rsos.241322","DOIUrl":"10.1098/rsos.241322","url":null,"abstract":"<p><p>A novel Fe₃O₄@SiO₂-Pr-2-Py-Cu(0) complex was produced as a heterogeneous magnetic nanocatalyst and characterized by employing several spectroscopic methods such as XRD, FT-IR, BET, VSM, FE-SEM, ICP, TGA, EDX, mapping, and UV-Vis spectroscopy. The catalytic performance of this novel catalyst was examined for efficient access to diverse 1,4-disubstituted-1,2,3-triazoles via eco-friendly one-pot three-component reactions of sodium azide, various terminal alkynes, and benzyl, allyl, ester, or alkyl halide in aqueous media and mild conditions. In addition, catalyst activity to study the generality and scope of the reaction in the library preparation of 5-substituted 1<i>H</i>-tetrazoles with a variety of electron-withdrawing and electron-donating groups was used through a one-pot reaction of hydroxylamine hydrochloride, diverse aldehydes and sodium azide in water. Catalyst recyclability results showed that it could operate up to eight consecutive runs without a significant reduction in the reaction efficiency. This green strategy assigns substantial advantages such as efficient and environmentally benign procedures, chemical waste minimization, stability and cost-effectiveness, short reaction time, wide-ranging substrate, an excellent yield of desired products and recoverable and reusable nanomagnetic catalysts.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"241322"},"PeriodicalIF":2.9,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11814627/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143410155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Are natural-based isothiocyanate derivatives alternative antioxidant additives used in petrochemical products?","authors":"Thi Chinh Ngo, Dinh Hieu Truong, Thi Le Anh Nguyen, Quang Khuong Pham, Duy Quang Dao","doi":"10.1098/rsos.241929","DOIUrl":"10.1098/rsos.241929","url":null,"abstract":"<p><p>Synthetic additives used in petrochemical products, such as plastics, rubbers, resins and polymers, can enter the environment as contaminants and pollute the aquatic and soil environment. Thus, using natural-based alternative compounds has excellent potential to reduce the negative impact. In this study, the role of natural-based isothiocyanate derivatives Cp<b>1</b>-Cp<b>4</b>, i.e. allylisothiocyanate, 1-isothiocyanate-3-methylbutane, 4-methylphenyl isothiocyanate and 2-phenylethyl isothiocyanate in use as primary antioxidant additives was studied via their HO^•-radical scavenging activity. Formal hydrogen transfer, radical adduct formation and single electron transfer mechanisms were investigated in water and pentyl ethanoate (PEA) using density functional theory at M06-2X/6-311++G(3df,3pd)//M06-2X/6-311++G(d,p) level of theory. The results illustrated the high HO^•-scavenging activity of the isothiocyanate compounds with rate constants of about 10⁸-10⁹ M^-1 s^-1. Allylisothiocyanate Cp<b>1</b> represents the most efficient HO^•-scavenger with <i>k</i> _overall of 5.20 × 10⁹ M^-1 s^-1 in water and 1.85 × 10⁹ M^-1 s^-1 in PEA. These results allow us to enrich the data on effective antioxidant additives from natural sources to reduce HO^• radicals-induced oxidation processes in different environmental conditions.</p>","PeriodicalId":21525,"journal":{"name":"Royal Society Open Science","volume":"12 2","pages":"241929"},"PeriodicalIF":2.9,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813575/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143410139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}