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Ce´sar Pastrana-Pineda; Luis J. Melgoza-Rami´rez; Erandi M. Islas-Flores; Wendy L. Go´mez-Monsiva´is; Jero´nimo Gonce; Noe´ Lo´pez; Jose´ B. Limo´n-Gonza´lez; Jose´ S. Rodri´guez-Zavala; Emma Saavedra; Javier A. Belmont-Di´az – Journal of Chemical Education, 2025
The study of energy metabolism is fundamental in multiple disciplines, such as biochemistry, bioengineering, biomedicine, etc. Traditionally, in high school and college level courses, students are taught energy metabolism (glycolysis, Krebs cycle, and oxidative phosphorylation) through diagrams of metabolic pathways that depict the transformation…
Descriptors: Science Instruction, Science Laboratories, Biochemistry, Energy
Sofia F. Palme; Andrew H. Johnson; Graeme R. A. Wyllie – Journal of Chemical Education, 2024
A major challenge when designing new experiments for the general chemistry laboratory is introducing students to the necessary techniques while keeping the experiment engaging and accessible. This work presents a new multiweek activity designed to introduce students to advanced instrumentation in the form of high-performance liquid chromatography…
Descriptors: Chemistry, Science Education, Color, Food
María Evangelina Carezzano; María de las Mercedes Oliva; Emiliano Foresto; Pablo Bogino; Walter Giordano – Journal of Biological Education, 2024
Plant extracts and their components have been reported to have antimicrobial properties against phytopathogens. Although such properties could be harnessed for the development of new pathogen control strategies, there are no standardised methods for their assessment in different extracts. The laboratory exercise presented here involves the use of…
Descriptors: Laboratory Experiments, Science Education, Microbiology, Plants (Botany)
Nicholas Griffin; Marshall Ritchie; Tyler Lynn; Kate Dear; Tyler Christian John Deutsch; Leigha Dillard; Kenneth Overway; Barnabas Otoo – Journal of Chemical Education, 2024
Owing to the critical role of stereochemistry in biotechnology, medicine, and industry, it must be well represented in undergraduate lab curricula. To achieve these stereochemical laboratory requirements without sacrificing existing lab techniques, we modified two standard laboratory experiments to include chiral GC analysis as follows. (1) The…
Descriptors: College Science, Undergraduate Students, Chemistry, Laboratory Procedures
Mariela Analía Torres; Alejandra Leonor Valdez; Carolina de Lourdes Olea; María Fernanda Figueroa; Carlos Gabriel Nieto-Peñalver – Biochemistry and Molecular Biology Education, 2024
After a time away from the classrooms and laboratories due to the global pandemic, the return to teaching activities during the semester represented a challenge to both teachers and students. Our particular situation in a Microbial Physiology course was the necessity of imparting in shorter time, laboratory practices that usually take longer. This…
Descriptors: Science Instruction, Science Laboratories, Physiology, Microbiology
Eleonora Carena; Riccardo Morina; Gabriele Brugnetti; Nicolo` Pianta; Simona Olga Binetti; Chiara Ferrara – Journal of Chemical Education, 2024
We are all users of lithium-ion batteries (LIBs), the electrochemical energy storage devices that revolutionized our life, making the diffusion of portable and wearable devices possible and now driving the switch from a combustion engine to electric vehicles in the transportation sector. These positive trends are however leading to two whiplash…
Descriptors: Recycling, Equipment, Sustainability, Efficiency
Pramod Kumar; Biplab Maji – Journal of Chemical Education, 2024
Discussion-based outcomes of organic chemistry laboratory experiments form a powerful tool to create a learning environment, facilitate teamwork, and build scientific skills and analytical ability for undergraduate science students. A Knoevenagel-type condensation reaction was selected to demonstrate these results by taking phenylacetonitrile and…
Descriptors: Organic Chemistry, Science Laboratories, Science Experiments, Laboratory Experiments
Karlie Bach; Ryan P. Loughran; Alyssa Johnson; Eliseo Quiroz; Jacob M. Lessard; Kyle T. Smith; Nan Chieh Chiu; Makenzie T. Nord; Michael W. Burand; Margaret Haak; Kyriakos C. Stylianou – Journal of Chemical Education, 2024
Metal-organic frameworks (MOFs) are porous materials composed of metal ions and organic ligands. These materials have garnered significant attention due to their wide-ranging applications, such as the capture of hazardous molecules, catalysis, production of value-added compounds, and detection of ions or molecules in water. Despite their immense…
Descriptors: Science Instruction, Metallurgy, College Science, Undergraduate Study
Meifen Wu; Yafei Liu; Xinhua Xu – Journal of Chemical Education, 2024
The variation in the transference number of H[superscript +] (aq) is investigated for different HCl solution concentrations. The method for scribing graduations on electromigration tubes is modified to decrease the error in experimental measurements, and metallic copper is used as the anode to reduce the toxicity and environmental impact of the…
Descriptors: Science Education, Scientific Concepts, Chemistry, Science Experiments
Leonardo Antonelli; Rosiene Reis Mattos; Mauricio Moraes Victor; Silvio Cunha – Journal of Chemical Education, 2024
A multicomponent reaction was adapted and successfully applied in the major organic course, which involves synthesizing and characterizing a 1,3-benzoxazine derived from paracetamol extracted from tablets of the worldwide well-known medicine Tylenol. Using paracetamol as a reagent is a motivational strategy in undergraduate laboratories to meet…
Descriptors: Organic Chemistry, Medicine, Undergraduate Study, College Science
Huifa Han; Yali Qin; Fan Wang; Ning Ding; Fang Fang; Lihong Hu; Hongming Jin; Yinan Zhang – Journal of Chemical Education, 2024
Electrophilic aromatic substitution (S[subscript E]Ar) and nucleophilic aromatic substitution (S[subscript N]Ar) reactions are among the most valuable reactions in the conversion of aromatic rings. While these reactions are typically covered in separate experiments in undergraduate organic courses, a continuous experimental setup elucidating both…
Descriptors: Science Instruction, Undergraduate Students, Science Experiments, Science Laboratories
Mahaveer Genwa; Jyoti Singh; Alka Rani; Kushagra Yadav; Chetna Angrish – Journal of Chemical Education, 2024
Photochemical reactions are initiated by the absorption of light, triggering the chemical reactions and resulting in the formation of products. These reactions are generally performed using a freely available renewable source of energy-solar energy. Solar simulators mimic both the ultraviolet and visible regions of sunlight and hence can serve as…
Descriptors: Chemistry, Science Instruction, Undergraduate Study, Science Laboratories
Zhiqiang Dong; Bo Yi; Xin Chen; Yechao Chen; Ming-Qiang Qi; Yanping Ren – Journal of Chemical Education, 2024
A laboratory experiment that involves the aqueous and solid phase synthesis, characterization, and solvatochromic properties exploration of red complex [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] has been developed for first-year undergraduates in the College of Chemistry and Chemical Engineering at Xiamen University. In contrast to previously…
Descriptors: Scientific Concepts, Science Education, Science Laboratories, Science Experiments
Monika Skowron; Sylwia Smarzewska – Journal of Chemical Education, 2024
A new undergraduate thin-layer chromatography laboratory experiment devoted to quantitative determination of disulfiram in Anticol formulation is presented. The proposed activity can be a part of a chromatographic methods of analysis course as well as a general chemistry course. To carry out a quantitative analysis, an image analysis technique was…
Descriptors: Undergraduate Study, Chemistry, Science Education, College Science
Yongguang Gao; Na Chen; Xiaoye Jiang; Xiaochun Yang – Journal of Chemical Education, 2024
The substitution of carbonyl compounds with liquid bromine as a brominating agent is the most commonly employed synthesis method for a-bromoacetophenone and its derivatives. However, liquid bromine possesses certain drawbacks, such as volatilization, high toxicity, strong corrosion, and poor reaction selectivity, which limit its application and…
Descriptors: Chemistry, Science Experiments, Teaching Methods, Undergraduate Study