Aggregation-induced emission(AIE)is a special photophysical phenomenon that refers to the phenomenon that certain molecules do not emit light or emit light very weakly in a low concentration state,and when the molecules are in an aggregated state or solid state,the light emission is significantly enhanced.This phenomenon has attracted a lot of attention from researchers since it was reported in 2001,because it has good applications in the fields of bioimaging,fluorescence sensing,liquid crystal display and OLED lighting.In this paper,the mechanism of aggregation-induced emission is introduced,explaining the theory of restricted intramolecular motions that is currently endorsed.Aggregation-induced emission(AIE)systems are described,and their applications in sensing,bioimaging and diagnostics,and optoelectronic devices are introduced.The advantages and characteristics of AIE systems and their possible applications are summarized,and the direction of the practical application of AIE materials is envisaged.

To solve the existing problems in the course of physical chemistry in college,based on the characteristics of subject course and the requirement of students,3T3D teaching mode,composed of think-discover,teach-discuss and test-develop,is designed and implemented.The teaching mode integrates online platform with offline classroom organically,aiming to explore to improve students' learning initiative,flexibility of thinking and comprehensiveness of knowledge structure systematically.Meanwhile,a teaching case about phase equilibria of single-component systems is provided to interpret the implementation of the teaching mode effectively.

Metal-organic frameworks(MOFs),with their unique structures and physicochemical properties,exhibit broad application prospects in numerous fields such as gas storage,separation,and catalysis.As an important method for synthesizing MOFs,the fundamental principle of the precipitation method lies in the theory of precipitation-dissolution equilibrium in inorganic chemistry.Taking MOFs,a frontier material,as an example,this paper aims to deeply explore the generation process of MOFs under specific precipitation conditions and emphasizes the analysis of how to achieve structural regulation of MOF materials using knowledge of precipitation-dissolution equilibrium.This paper aims to integrate frontier scientific research into basic inorganic chemistry teaching,explore new paths for the integration of science and education,and provide beneficial reference and practical guidance for improving the quality of chemistry teaching in China as well as cultivating chemical talents with innovative abilities.

In the era where the “dual carbon” issue has risen to a national policy, building a community with a shared future for mankind and creating a sustainable ecological environment have become the mainstream of the times. This paper is based on the applications of carbon allotropes and their compounds in scientific research, practice, and daily life within the inorganic chemistry curriculum. By employing problem-based and case-driven teaching methods, it guides students to actively design carbon materials, fosters innovative thinking centered on “using carbon to manage carbon”, cultivates the creative abilities of first-year students, and builds their confidence in scientific research.

The Cannizzaro reaction experiment of benzaldehyde is a common classical organic chemistry experiment in colleges and universities.In this improved experiment,the solid phase grinding method was adopted and the raw material benzaldehyde was replaced by 4-methyl benzaldehyde.The improvements not only reduced the experimental time and reagent dosage,but also stimulated the students' interests in learning.It was also conducive to improve the yield of alcohol products,reduce the by-products and obtain the higher safety of the experiment.This improved experiment retains the comprehensiveness of the original experiment and integrates the new organic synthesis method as well.Therefore,it is suitable for the promotion and application in colleges and universities of our country.

Continuous flow chemistry has developed into a disruptive technology in synthetic chemistry due to its advantages of being green,safe,and low cost and energy consumption.In this paper,an experiment was designed to synthesize 2-pyrrole carboxaldehyde from pyrrole by continuous flow Vilsmeier-Haack reaction,which not only enables students to learn the principles of continuous flow chemistry and practice the use of flow chemistry teaching platform,but also learn the principles and methods of preparing aromatic aldehydes using Vilsmeier-Haack reaction.The experiments designed in this paper can cultivate students to establish the concept of green development,which is applicable to university innovation experiments and postgraduate laboratory courses.

During the experimental process,students are guided to prepare anthocyanin extract solution for characteristic detection and content calculation,and to conduct feasibility tests with five different metal ions to screen for obvious complexation reactions for comparative analysis.By using digital imaging colorimetry to analyze the changes in solution concentration and color,an external calibration curve for the complex is constructed.This experiment combines qualitative observation with quantitative analysis,further enhancing students' interests in chemical experiments by visualizing the complexation reaction,advancing their high-level cognitive thinking,and better engaging them in scientific research and innovation.

The development of new engineering disciplines underscores the imperative to cultivate engineering and scientific acumen,emphasizing the nuanced blend of comprehensiveness,practicality,and innovation.Simultaneously,the integration of green energy storage dielectric capacitors is posited as pivotal in realizing the fruition of clean energy utilization and catalyzing the trajectory of green economic development.Anchored in this overarching paradigm,experimental pedagogy seamlessly incorporates dielectric ceramic materials,with a focal emphasis on the environmentally benign (Bi,Na)TiO₃(BNT) at its core,into thecomprehensive experiment of materials chemistry.This didactic module spans a gamut from unraveling the intricate operational tenets of dielectric capacitors to the meticulous orchestration of material composition and design,from the intricacies of preparation methodologies to the judicious deployment of performance testing paradigms.Meanwhile,it entails a probing analysis of microscopic structures and the delineation of hysteresis loops,culminating in a synthesis that encapsulates their collective impact on energy density and storage efficiency.By forging an organic nexus between foundational dielectric materials and the realm of scientific inquiry,this pedagogical approach imparts a profound comprehension of the underlying concepts and principles governing dielectric capacitors.This experiential voyage into the domain of clean energy storage devices not only augments students' theoretical acuity but also contributes substantively to the refinement of their proficiency in the domain of green chemistry.

A comprehensive experiment was designed to apply the manufacturing of nanozyme paper chip biochemical sensors, modern analysis and testing technology, and sensing detection to the teaching experiments of materials science and engineering majors, in order to improve students' comprehensive practical abilities. The experiment consists of three main parts: research on the manufacturing process of nanozyme paper chip biochemical sensors, performance analysis of paper chips, and research on ascorbic acid detection methods. Nanozyme paper chips were manufactured using wax spray printing method, and their structure and properties were analyzed using scanning electron microscopy, X-ray diffractometer, thermogravimetric analyzer and ImageJ. A colorimetric method was used to establish a detection method for ascorbic acid. By conducting this experiment, students can understand the cutting-edge knowledge of materials science, master the basic principles and testing steps of relevant modern analysis and testing techniques, and proficiently master professional experimental operations and data processing methods, thereby improving their comprehensive practical ability and professional quality.

Under the background of the “New Normal Teacher Education” model, chemistry teacher education is undergoing transformation, emphasizing the comprehensive development of students and the transformation of the teacher's role, with the aim of cultivating teachers who possess the ability to nurture students through their subject, carry on the legacy of science, and have a sense of social responsibility. This research explores the significance of chemical philosophy in the chemistry teacher education within the “New Normal Teacher Education” , highlighting the importance of understanding chemistry from a philosophical perspective to deepen our knowledge and comprehension of the world. The author employs the dialectical materialist mode of thinking, using Linus Pauling's Nobel Prize in Chemistry and Peace Prize as examples to analyze the unique philosophical perspective of chemistry. Under the guidance of philosophical thinking, we will cultivate the chemical thinking of teacher trainees, promote the spirit of chemistry, and facilitate the healthy development of chemistry teacher education in the “new teacher training” program.

Medical chemistry plays an important role in medical-related majors.In order to enable students to learn and master the knowledge of medical chemistry better,the student-centered teaching design and practice of alcohols and phenols in medical chemistry have been implemented.The learning interest and subjective initiative of students are enhanced by problem-based teaching,multimedia experimental teaching and group discussion in teaching design.Moreover,the scientific thinking and correct values(view of life,values and science)of students have been established by ideological and political education.

Taking aromatic heterocyclic compounds as an example,this paper discusses the exploration and practice of the“dual-driven 5L”blended teaching mode in organic chemistry for pharmaceutical majors.Before class,teachers guide students to actively learn through tasks and problems,emphasizing self-study and group cooperation.During class,with the assistance of teachers' elaborations and team-based exploration,difficulties are solved.Meanwhile problem-oriented approaches and case analysis methods are used to deepen students' understanding and promote the application of knowledge.After class,students identify and rectify their weaknesses,while teachers adopt diversified evaluation methods to motivate students further.Online,refined and hierarchical tasks and questions are designed to drive students' self-study and mutual learning.Offline,through problem-based guidance and case analysis,students are driven to actively participate in classroom learning with self-discipline.These measures constructs a closed-loop teaching system encompassing“pre-class self-study,group mutual learning,intensive classroom learning,post-class supplementary learning”,which effectively stimulates students' interests in learning.Thus teaching quality and learning effects are improved,and students' overall qualities and abilities are comprehensively enhanced,laying a solid foundation for their future pharmaceutical practice.

Based on the actual situation of general chemistry teaching for non-chemistry majors in agricultural colleges,this study deeply analyzes students' learning conditions and disciplinary characteristics.Centering closely around the goal of cultivating new agricultural science talents,the “six integrations” principle is implemented to reconstruct the teaching content,which includes the in-depth integration of chemistry with daily life,scientific history,popular science,agricultural majors,practical applications,and emotions.Diversified teaching strategies and a process-oriented evaluation system are applied to drive students' development.Modular teaching adopts corresponding strategies according to characteristics,and the evaluation system combines process and summative evaluations for precise guidance.It sets an example for the innovation of chemistry teaching in agricultural colleges and promotes the process of cultivating new agricultural science talents.

In order to improve the management of the public instrument platform and provide superior services,this paper conducts a thorough and meticulous investigation into the issues pertaining to user management on the public instrument platform in the state key laboratory of universities.Firstly,the users' demands for public instruments and the challenges encountered during their usage of the platform are analyzed.Subsequently,the difficulties encountered by managers in performing user management are investigated.Finally,leveraging the practical work experience garnered from the State Key Laboratory of Supramolecular Structure and Materials,measures for comprehensively elevating the level of the user management are outlined.

The application of generative artificial intelligence(AI)in academic writing has been driving a transformation in traditional academic writing instruction.However,little research has been done on the ways in which AI assists in academic learning.Lexical bundles,as key components of academic writing,are defined as recurrent multi-word sequences and serve as distinguishing feature of discourse across genres,and disciplines.Adopting a corpus-based approach,this study examines the convergent and divergent usage of 4-word lexical bundles between AI-generated and scholar-written English abstracts in international chemistry journal articles.The results show that AI relies more heavily on lexical bundles but exhibits limited bundle diversity in constructing chemistry abstracts,while does not conform to the English academic writing convention that dominated by of-phrases.Structurally,AI prefers clausal bundles,while scholars favor phrase-based bundles.Functionally,both AI and scholars prioritize research-oriented bundles.Nevertheless,AI overuses text-structuring bundles while under-utilizing framing and stance bundles.These limitations reflect the inherent constraints of generative AI pretraining models,which lack personalization and the rhetorical sophistication required for effective academic persuasion.This study underscores the importance of raising chemistry scholars' awareness of lexical bundles and advancing AI-human collaboration of academic English writing instruction in the field of chemistry.

Generative Artificial Intelligence has demonstrated great potential in the field of education.This study aims to systematize empirical research on the application of generative AI in chemistry education,specifically in the Journal of Chemical Education.The focus is on identifying specific application scenarios and assessing the effects of generative AI to reveal its actual performance and potential value in chemistry teaching.The results show that the existing research focuses on three main aspects:the evaluation of generative AI tools,the application of assisting students in accomplishing tasks in chemistry courses,and the role in promoting the development of students' critical thinking skills.Specifically,the quality of generative AI in answering chemistry questions is affected by a variety of factors such as the type and difficulty of the question and the prompts entered by the user.Leveraging its advanced text generation capabilities,generative AI has been widely used to support students in writing lab reports and chemistry writing,but there are still limitations in deep chemical analysis and reasoning.Moreover,studies have explored strategies for utilizing generative AI to develop students' critical thinking,such as creating interactive learning environments,promoting collaborative learning,and providing diverse learning resources.Despite these advancements,research on specific teaching strategies for integrating generative AI in chemistry education is still weak.Future research should prioritize a comprehensive assessment of generative AI's capabilities in solving complex chemical problems and further investigate effective interaction patterns and strategies between students and generative AI systems.

By using CiteSpace software,this paper makes a quantitative analysis of 1503 articles on school safety education collected by Web of Science core collection database and China Knowledge Network from 2011 to 2024,anddraws visual knowledge graphs.Through the comparison of the current research status and development trajectory of safety education in Chinese and foreign schools,this paper analyzes the commonalities and differences between the two,and explores the future development direction of school safety education in the context of digital transformation.Finally,on the basis of Chinese and foreign research results and practical experience,this paper puts forward countermeasure suggestions to improve China's school safety education work from aspects such as optimizing the system,reconstructing the mechanism,and shaping the evaluation paradigm from multiple perspectives.

Combing the chemical battery from the birth of the tortuous course of development,divided into four stages.Theoretical foundation stage,from the voltaic stack to the development of Daniel battery,established the chemical battery redox reaction generator theory;Chemical battery practical stage,dry cell,secondary battery and other technologies to open the battery practical process;Chemical battery green stage,environmental awareness of lithium-ion batteries,fuel cells,the rapid development of technology;Into the new era,the variety of batteries increased,high energy density and green is still the main goal of battery development.The development of chemical batteries is a long way to go,along with the continuous innovation of key technologies,chemical batteries will play an increasingly important role in modern society.

NMR is one of the most fully researched and widely used spectroscopy techniques so far,covering the fields of biology,medicine,mineral exploration,chemistry,etc.And many outstanding scientists have won the Nobel Award for their NMR research.Among them,Professor Yu Fu-Chun and his colleague Professor Proctor discovered that the chemical environment in which the nucleus is located affects the chemical displacement of the nucleus,which is also known as the Proctor-Yu effect.Immediately afterwards,Professor Yu Fu-Chun found that the NMR spectral lines of SbF^<sup>-_<sub>6 ions were split in the aqueous solution of KSbF₆,and finally confirmed that it was caused by spin coupling.These major achievements are rarely mentioned in domestic and foreign textbooks.This paper briefly describes Professor Yu Fu-Chun's growth experience and Professor Yu Fu-Chun's significant contributions to the development of NMR.