检索结果-内蒙古大学图书馆

Sodium persulfate activated by solar radiation to generate sulfate anion radicals for degradation of the insecticide thiamethoxam in water

引用

Environmental Science and Pollution Research 2025年第11期32卷 6492-6504页

作者： Teixeira, Keila Cardoso Bihain, Murielly Fernanda Ribeiro dos Santos Pereira, Anna Karla Pereira, Douglas Henrique Cavallini, Grasiele Soares Graduate Program in Chemistry Federal University of Tocantins TO Gurupi77.402-970 Brazil SP São José Dos Campos12228-900 Brazil Graduate Program in Plant Production Federal University of Tocantins TO Gurupi77.402-970 Brazil

The degradation of the neonicotinoid insecticide Thiamethoxam (TMX) by the oxidizing agent sodium persulfate (SP) activated by H2O2, peracetic acid (PAA), pH, solar radiation, heating and sonication, also using combinations between the activators was evaluated. The optimal dosage of SP in the process was 10 mmol L−1 and at this concentration the oxidants hydrogen peroxide and PAA did not contribute to the increase in TMX degradation even when exposed to solar radiation. Under conditions of greater acidity and exposure to solar radiation, the degradation efficiency of TMX increased and continued for days, even with sample storage in the absence of light. The process promoted a drastic reduction in the pH of the medium, meaning that it always occurred at an acidic pH, regardless of the initial pH. The degradation kinetics of TMX can be described by a Pseudo-second order model with higher reaction rate in acidic medium. Analysis employing a sequestering agent (isopropyl alcohol) indicated that the degradation efficiency of the process can be attributed to the generation of HO• and SO4−• radicals. Ecotoxicological analyses show greater toxicity of the sample after TMX degradation. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.

关键词： Reaction rates

来源：评论

学校读者我要写书评

暂无评论

A self-assembling nanoplatform for pyroptosis and ferroptosis enhanced cancer photoimmunotherapy

引用

Light(Science & Applications) 2025年第1期14卷 153-166页

作者： Zhichao Wang Yuqi Tang Quan Li Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast UniversityNanjing211189China Materials Science Graduate Program Kent State UniversityKentOH44242USA

The microenvironment of immunosuppression and low immunogenicity of tumor cells has led to unsatisfactory therapeutic effects of the currently developed *** cell death,such as pyroptosis and ferroptosis,can efficiently boost antitumor ***,the exploration of nanoplatform for dual function inducers and combined immune activators that simultaneously trigger pyroptosis and ferroptosis remains ***,a multifunctional pH-responsive theranostic nanoplatform(M@P)is designed and constructed by self-assembly of aggregation-induced emission photosensitizer MTCN-3 and immunoadjuvant Poly(l:C),which are further encapsulated in amphiphilic *** nanoplatform is found to have the characteristics of cancer cell targeting,pH response,near-infrared fluorescence imaging,and lysosome ***,after targeting lysosomes,M@P can cause lysosome dysfunction through the generation of reactive oxygen species and heat under light irradiation,triggering pyroptosis and ferroptosis of tumor cells,achieving immunogenic cell death,and further enhancing immunotherapy through the combined effect with the immunoadjuvant Poly(I:C).The anti-tumor immunotherapy effect of M@P has been further demonstrated in in vivo antitumor experiment of 4T1 tumor-bearing mouse model with poor *** research would provide an impetus as well as a novel strategy for dual function inducers and combined immune activators enhanced photoimmunotherapy.

关键词： immunotherapy cancer aggregation

来源：评论

学校读者我要写书评

暂无评论

The structural and functional dynamics of BiP and Grp94: opportunities for therapeutic discovery

引用

Trends in Pharmacological Sciences 2025年第5期46卷 453-467页

作者： Obaseki, Ikponwmosa Ndolo, Chioma C. Adedeji, Ayodeji A. Popoola, Hannah O. Kravats, Andrea N. Department of Chemistry & Biochemistry Miami University Oxford 45056 OH United States Cell Molecular and Structural Biology Graduate Program Miami University Oxford 45056 OH United States

Binding immunoglobulin protein (BiP) and glucose-regulated protein 94 (Grp94) are endoplasmic reticulum (ER)-localized molecular chaperones that ensure proper protein folding and maintain protein homeostasis. However, overexpression of these chaperones during ER stress can contribute to disease progression in numerous pathologies. Although these chaperones represent promising therapeutic targets, their inhibition has been challenged by gaps in understanding of targetable chaperone features and their complex biology. To overcome these challenges, a new assay has been developed to selectively target BiP, and compounds that exploit subtle conformational changes of Grp94 have been designed. This review summarizes recent advances in elucidating structural and functional dynamics of BiP and Grp94. We explore leveraging this information to develop novel therapeutic interventions. Finally, given the recent advances in computing, we discuss how machine learning methods can be used to accelerate drug discovery efforts. © 2025 Elsevier Ltd

关键词： BiP drug design endoplasmic reticulum stress Grp94 molecular chaperones

来源：评论

学校读者我要写书评

暂无评论

Collaborative actuation of liquid crystal elastomer unit cells as a function design platform

引用

Science China Materials 2025年第1期68卷 236-243页

作者： Jinyu Wang Hari Krishna Bisoyi Yinliang Huang Yiyi Xu Xinfang Zhang Ben Fan Tao Yang Zhiyang Liu Shuai Huang Quan Li Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast UniversityNanjing 211189China Materials Science Graduate Program Kent State UniversityKentOH 44242US

As future soft robotic devices necessitate a level of complexity surpassing current standards,a new design approach is needed that integrates multiple systems necessary to synchronize the motions of soft actuators and the response of signals,thereby enhancing the intelligence of flexible ***,we propose a liquid crystal elastomer unit cell-based platform that organizes the cells in a group to create expandable *** unit cell behaves like a flexible module that can expand biaxially into a specific,stable,and controllable *** the unit cells in different manners results in an adaptable soft grasper,a half-adder for information processing,and a tunable phononic *** implies a high level of reconfigurability and scalability in both structures and functions by elegantly reassembling the unit *** design strategy has the potential to integrate multiple functions that traditional soft actuators cannot accommodate,providing a platform for developing intelligent soft robotics.

关键词： liquid crystal elastomer light-responsive material smart material soft actuator

来源：评论

学校读者我要写书评

暂无评论

Multi-Scale Analysis Combined Operando Elemental/Spectroscopic Measurement Techniques in Oxide-Type All-Solid-State Na Batteries

引用

Energy & Environmental Materials 2025年第2期8卷 38-47页

作者： Koji Hiraoka Kazuo Yamamoto Takeshi Kobayashi Tetsuo Sakamoto Shiro Seki Graduate School of Engineering Applied Chemistry and Chemical Engineering Program Kogakuin University Nanostructures Research Laboratory Japan Fine Ceramics Center Energy Transformation Research Laboratory Central Research Institute of Electric Power Industry Graduate School of Engineering Electrical Engineering and Electronics Program Kogakuin University

Understanding the charge/discharge mechanism of batteries plays an important role in the development of high-performance systems,but extremely complicated reactions are *** these complex phenomena are also bottlenecks for the establishment of all-sol id-state batteries(ASSB),we conducted multi-scale analysis using combined multi-measurement techniques,to directly observe charge/discharge reactions at hierarchical scales for the oxide-type ASSB using Na as the carrier *** particular,all of measurement techniques are applied to cross-section ASSB in the same cell,to complementarily evaluate the elemental distributions and structural *** Operando scanning electron microscopy-energy-dispersive X-ray spectroscopy,the Na concentration in the electrode layers changes on the micrometer scale under charge/discharge reactions in the first ***,Operando Raman spectroscopy reveal changes in the bonding states at the atomic scale in the active material,including changes in reversible structural *** cycling the ASSB,the elemental distributions are clearly observed along with the particle shapes and can reveal the Na migration mechanism at the nanometer scale,by time-of-flight secondary ion mass ***,this study can provide a fundamental and comprehensive understanding of the charge/discharge mechanism by observing reaction processes at multiple scales.

关键词： Operando oxide-type all-solid-state battery Raman SEM-EDS sodium battery TOF-SIMS

来源：评论

学校读者我要写书评

暂无评论

Inner-sphere adsorption of orthophosphates on amorphous aluminum hydroxide: The Laplace transform solution to a kinetic model involving first-order Taylor approximations to the Langmuir isotherm

引用

Separation and Purification Technology 2025年 369卷

作者： Nishimura, Thiago de Barros, Ivan Ricardo Benincá, Cristina Zanoelo, Everton Fernando Federal University of Paraná Graduate Program in Chemical Engineering PR Curitiba Brazil Federal University of Rio Grande Graduate Program in Technological and Environmental Chemistry Santo Antônio da Patrulha RS Brazil

The kinetics of interaction between orthophosphates and Al(OH)3 is of importance to remove phosphorus from wastewater and to understand its mobility and bioavailability in soils. In this study, the kinetics of adsorption of orthophosphates on amorphous Al(OH)3 was examined in an agitated vessel containing an aqueous solution with initial adsorbate concentrations (C0) ranging from ∼3 to 92 mg L−1, at ∼25 °C and pH ∼ 6.9. The soluble orthophosphates were rapidly adsorbed by inner-sphere complexation, but the adsorption capacity was limited to ∼13 mg of phosphorus per g of Al(OH)3. The yield of removal of adsorbing species from the liquid changed from ∼5 to 73 %. A novel reliable adsorption kinetic model was proposed by an original analytical solution of a system of differential equations from adsorbate balances. This solution by using Laplace transform was possible because a valid, robust and simplified procedure was suggested to describe the Langmuir isotherm by first-order Taylor approximations (R2 ∼ 0.93). By contrast to the usual kinetic modeling approaches for liquid–solid adsorption, the current model involves an effective adsorption rate constant (kCA = 3.840 × 10−4 L s−1) considered to be independent of C0. The rates of adsorbate transport from the bulk liquid to the internal adsorbent surface were supposed to be much slower than that of orthophosphates adsorption. ICP spectroscopy, XRD, SEM, EDX spectroscopy and gas adsorption analyses confirm that phosphorous was adsorbed on mesoporous amorphous Al(OH)3 with average pore size of 263 Å and specific surface area of ∼100 m2 g−1. A large independent set of adsorption data for P on Al(OH)3 was used to explain and validate the results. © 2025 Elsevier B.V.

关键词： Aluminum hydroxide

来源：评论

学校读者我要写书评

暂无评论

The Effect of Phosphoserine-Containing Membranes on Electrostatic Fields at the Protein-Protein Interface Measured through Vibrational Stark Effect Spectroscopy

引用

Biochemistry 2025年第10期64卷 2280-2290页

作者： Fink, Jackson C. Webb, Lauren J. Interdisciplinary Life Sciences Graduate Program The University of Texas at Austin Austin 78712 TX United States Department of Chemistry Texas Materials Institute Interdisciplinary Life Sciences Graduate Program The University of Texas at Austin Austin 78712 TX United States

In the cell, Ras GTPases function as membrane-bound molecular switches for a variety of cell signaling pathways. Ras isoforms have long been of interest because of the connection between amino acid mutations and tumorigenesis. Much research focused on Ras has used truncated, solubilized constructs, which exclude the membrane-binding domain and therefore ignore the effects of membrane binding on Ras function. Since the membrane is a highly charged surface, it could have a significant impact on the electrostatic environment at or near the protein-protein interface. Here, we use a thiocyanate probe chemically inserted into the Ras-binding domain of RalGDS to investigate the effect of membrane binding at the Ras active site. Changes in the electric field caused by the membrane were measured by the probe as vibrational energy shifts in the infrared (IR) spectrum. For a selection of mutants which caused large shifts at this interface on the soluble H-Ras construct, binding to a 30% phosphatidylserine (PS)/70% phosphatidylcholine (PC) nanodisc caused reduced shifts compared to the solubilized counterparts. Additionally, the vibrational probe bonded to the wildtype (WT) Ras construct demonstrated a shift of 0.7 cm-1 as a PC nanodisc was doped from 0% to 30% PS, but mutations introduced to the Ras active site caused the probe to show no shift across these PS concentrations. These results indicate that the local membrane environment has an effect on the electrostatics at the Ras active site and needs to be considered when investigating the effect of oncogenic mutations on Ras function. © 2025 American Chemical Society.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Methacrylic acid/Tween 80 engineered amorphous calcium phosphate as an effective bioactive reinforcing nanofillers in dental adhesive

引用

Dental Materials Journal 2025年第2期44卷 190-200页

作者： Maimansomsuk, Siripatsorn Teangrom, Paremai Teanchai, Chayada Sinthuvanich, Chomdao Ruengket, Pakorn Attarataya, Jakrada Akkarachaneeyakorn, Khrongkhwan Department of Chemistry Faculty of Science Kasetsart University Bangkok10900 Thailand Center of Excellence for Innovation in Chemistry Faculty of Science Kasetsart University Bangkok10900 Thailand Research Center Faculty of Dentistry Mahidol University Bangkok10400 Thailand Department of Biochemistry Faculty of Science Kasetsart University Bangkok Thailand Faculty of Science Kasetsart University Bangkok Thailand Genetic Engineering and Bioinformatics Program Graduate School Kasetsart University Bangkok Thailand Nakhon Ratchasima30000 Thailand

Bioactive fillers in dental adhesives are designed to release beneficial ions, such as calcium and phosphate, to help in remineralization process, and preventing secondary caries. Their incorporation also aims to improve the longevity of dental restorations. Herein, CaP nanoparticles were synthesized through a water-in-oil emulsion method using Tween80 as a surfactant and methacrylic acid (MAA). MAA officiated as a co-surfactant and reduced the size of CaP nanoparticle, including improved compatibility with the components of dental adhesive. The incorporation of 2% T80/CaP/MAA nanofillers into dental adhesive demonstrated increased efficiency, as evidenced by a higher degree of conversion (%DC) and greater micro-tensile bond strength (μTBS). More importantly, T80/CaP/ MAA nanofillers were able to induce remineralization process in the dental structure, which was confirmed by EDX mapping and IR imaging. Finally, a cytotoxicity assessment of the dental adhesive containing T80/CaP/MAA showed no significant adverse effects on human fibroblast cells. © 2025, Japanese Society for Dental Materials and Devices. All rights reserved.

关键词： Stem cells

来源：评论

学校读者我要写书评

暂无评论

Catalysis-Induced Highly-Stable Interface on Porous Silicon for High-Rate Lithium-Ion Batteries

引用

Nano-Micro Letters 2025年第8期17卷 548-563页

作者： Zhuobin Han Phornphimon Maitarad Nuttapon Yodsin Baogang Zhao Haoyu Ma Kexin Liu Yongfeng Hu Siriporn Jungsuttiwong Yumei Wang Li Lu Liyi Shi Shuai Yuan Yongyao Xia Yingying Lv Research Centre of Nanoscience and Nanotechnology Shanghai UniversityShanghai 200444People’s Republic of China Department of Chemistry Faculty of ScienceSilpakorn UniversityNakhon Pathom 73000Thailand Sinopec Shanghai Research Institute of Petrochemical Technology Co. Ltd.Shanghai 201208People’s Republic of China Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Ubon Ratchathani UniversityUbon Ratchathani 34190Thailand National University of Singapore(Chongqing)Research Institute Chongqing 401123People’s Republic of China Department of Chemistry Fudan UniversityShanghai 200433People’s Republic of China Emerging Industries Institute Shanghai University Jiaxing 314006ZhejiangPeople’s Republic of China Program in Bioinformatics and Computational Biology Graduate SchoolChulalongkorn UniversityBangkok 10330Thailand

Silicon stands as a key anode material in lithium-ion battery ascribing to its high energy ***,the poor rate performance and limited cycling life remain unresolved through conventional approaches that involve carbon composites or nanostructures,primarily due to the un-controllable effects arising from the substantial formation of a solid electrolyte interphase(SEI)during the ***,an ultra-thin and homogeneous Ti doping alumina oxide catalytic interface is meticulously applied on the porous Si through a synergistic etching and hydrolysis *** defect-rich oxide interface promotes a selective adsorption of fluoroethylene carbonate,leading to a catalytic reaction that can be aptly described as“molecular concentration-in situ conversion”.The resultant inorganic-rich SEI layer is electrochemical stable and favors ion-transport,particularly at high-rate cycling and high *** robustly shielded porous Si,with a large surface area,achieves a high initial Coulombic efficiency of 84.7%and delivers exceptional high-rate performance at 25 A g^(−1)(692 mAh g^(−1))and a high Coulombic efficiency of 99.7%over 1000 *** robust SEI constructed through a precious catalytic layer promises significant advantages for the fast development of silicon-based anode in fast-charging batteries.

关键词： Catalytic interface Mesoporous Inorganic-rich SEI Silicon anode Lithium-ion batteries

来源：评论

学校读者我要写书评

暂无评论

Heterogeneous catalytic oxidative desulfurization of dibenzothiophene of metal oxide–Mg/Al layered double hydroxide

引用

Environmental Science and Pollution Research 2025年第13期32卷 8555-8563页

作者： Ahmad, Nur Hanifah, Yulizah Arsyad, Fitri Suryani Lesbani, Aldes Graduate School of Mathematics and Natural Sciences Faculty of Mathematics and Natural Sciences Universitas Sriwijaya Sumatera Selatan Palembang30139 Indonesia Research Center of Inorganic Materials and Coordination Complexes Universitas Sriwijaya Sumatera Selatan Palembang30139 Indonesia Research Center for Chemistry National Research and Innovation Agency Building 452 KST BJ Habibie Banten Serpong Tangerang Selatan15311 Indonesia Master Program of Material Science Graduate School Universitas Sriwijaya Sumatera Selatan Palembang30139 Indonesia

Mg/Al-TiO2 and Mg/Al-ZnO were successfully prepared for dibenzothiophene catalytic oxidative desulfurization. XRD, FTIR, TEM, and BET analyses were utilized to characterize the catalyst. In composites, the distinctive XRD patterns of precursors are still observable. FTIR spectra of the absorption bands were at 3448, 1627, 1381, 601, and 547 cm−1. The TEM pictures of the sample also revealed the almost spherical and hexagonal platelets of Mg/Al-LDH and its composite. Mg/Al LDH, Mg/Al-TiO2, and Mg/Al-ZnO had typical pore sizes of 35.78 nm, 52.81 nm, and 38.37 nm, respectively. The graph of nitrogen isotherms Mg/Al LDH, Mg/Al-TiO2, and Mg/Al-ZnO followed type IV isotherms. In addition, the conversion rates on Mg/Al-ZnO, Mg/Al-TiO2, ZnO, Mg/Al-LDH, and TiO2 were 99.34%, 99.50%, 91.20%, 96.29%, and 88.06%, respectively. This work presents alternative materials for the oxidative desulfurization of dibenzothiophene in practical applications. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.

关键词： Zinc oxide

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：