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Michael A. Everest; Abigail J. Toves; Melissa S. Reeves – Journal of Chemical Education, 2023
We have developed a guided-inquiry laboratory exercise in which students perform viscosity measurements to infer the structure of poly(vinyl alcohol) (PVA) in aqueous solution. The activity combines both experiments and modeling. In the experimental portion of the exercise, students measure the viscosity of several solutions of PVA with differing…
Descriptors: Molecular Structure, Chemistry, Science Experiments, Inquiry
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Larry Collins; Alexis R. Hartley; Christopher T. Jurgenson – Journal of Chemical Education, 2025
NMR prediction using ChemDoodle, NMR calculation with Gaussian, and hands-on data collection using a benchtop NMR spectrometer were explored to assess their synergistic capacity in teaching NMR to organic chemistry students. Nine molecules representing functional groups commonly encountered in undergraduate organic chemistry were selected. Spectra…
Descriptors: Organic Chemistry, Molecular Structure, Science Instruction, Science Laboratories
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Abu-Much, Riam – Journal of Chemical Education, 2021
This study proposes a lab experiment consisting of three consecutive steps designed to expose undergraduate students to the fundamental aspects of nanoscience. Two different procedures for the reduction of silver ions were provided: Th was obtained. Next, the students explored the aggregation process of silver nanoparticles by converting one…
Descriptors: Chemistry, Science Experiments, Undergraduate Students, Science Instruction
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Ronghui Que; Hongbo Wu; Yalan Zhao; Shasha Han; Min Han; Yan-Lin Xiong; Shanheng Ma; Houxiong Wang – Journal of Chemical Education, 2023
The classic silver mirror reaction at room temperature in textbooks usually used glucose to react with silver nitrate and ammonium nitrate with the presence of caustic alkalis. But the aldehydes such as acetaldehyde and propionaldehyde were difficult to react under the same condition. In this paper, Na[subscript 2]CO[subscript 3] was used to…
Descriptors: Climate, Scientific Concepts, Science Education, Chemistry
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Michael A. Araujo; Alexandra A. Barrere; Selena-Rae Tirado; Candace E. Williams; Monica I. Strada; Benjamin J. Alper – Journal of Chemical Education, 2022
Using crystal structure data, site directed mutagenesis, and real-time kinetic assays, students designed, expressed, and purified engineered mutants of human insulin-degrading enzyme (IDE). Students designed their own IDE mutants following "in silico" analysis, used inverse PCR to generate mutant plasmid expression constructs, expressed…
Descriptors: Molecular Structure, Science Instruction, Science Laboratories, Science Experiments
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Jinhyeon Choi; Sang-Hak Jeon; Hyeon-Pyo Shim – Biochemistry and Molecular Biology Education, 2024
The aim of this study was to develop molecular genetics inquiry programs using the "eyes absent" gene of "Drosophila melanogaster." The program was composed of various molecular genetics experiments, including mutation observation, cross-breeding, searching for genetic information in web databases, gDNA extraction, and PCR.…
Descriptors: Genetics, Molecular Structure, Animals, Genetic Disorders
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Han, Jianwei; Chen, Huangguan; An, Guoqiang; Sun, Xiaoya; Li, Xiangyu; Liu, Yiwu; Zhao, Sijia; Wang, Limin – Journal of Chemical Education, 2021
Iodonium zwitterions are hypervalent iodine compounds in which the iodine center binds to two substituents and carries a positive formal charge which is compensated by a negative charge within the same molecule. Under thermodynamic conditions, iodonium zwitterion sallow concerted nucleophilic aromatic substitutions to be performed, followed by…
Descriptors: Organic Chemistry, Thermodynamics, Science Experiments, Science Process Skills
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Jung, Jiyoung; Dinescu, Adriana; Kukrek, Ahmet – Journal of Chemical Education, 2020
Recently, researchers have paid extensive attention to colorimetric/fluorimetric probe development and its applications in biological and industrial samples. The actual development of such probe molecules, however, often requires an iterative process to achieve certain goals such as selectivity and sensitivity toward a target analyte. In spite of…
Descriptors: College Science, Science Instruction, Chemistry, Kinetics
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Zhao, Yanlu; Lim, Minyoung; Choi, Sungmoon; Yu, Junhua – Journal of Biological Education, 2022
The attractive photophysical properties of luminescent nanoparticles have prompted numerous studies on their synthesis and biological applications. Due to the complexity of components, sizes, morphologies, and strong light scattering of the nanoparticles the absorption spectrum alone is not enough for characterising and analysing the real…
Descriptors: Spectroscopy, Cytology, Light, Science Instruction
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Park, Chulkyu; Lee, Chang Youn; Hong, Hun-Gi – Journal of Chemical Education, 2020
According to the definition, surface tension could be affected not only by intermolecular interaction but also by molecular area. However, in chemistry textbooks, surface tension is mainly explained only in terms of intermolecular interaction. Although the existing surface tension concept in the textbooks can lead to a variety of counterexamples,…
Descriptors: Science Instruction, College Science, Undergraduate Study, Molecular Structure
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Devetak, Iztok; Savec, Vesna Ferk – Center for Educational Policy Studies Journal, 2020
During the last three decades, chemical education in Slovenia has developed mainly in two chemistry education research groups, one located at the University of Ljubljana and the other at the University of Maribor. The present study aims to identify research papers in the field of chemical education published between 1991 and 2019 through a…
Descriptors: Foreign Countries, Chemistry, Educational Research, Teacher Education
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Güven, Nalan Akkuzu; Uyulgan, Melis Arzu – Journal of Pedagogical Research, 2021
The present investigation aims to analyze the knowledge levels and chemical representation levels of pre-service primary school teachers (PPSTs) on the experiment of distillation. For this purpose, the cross-sectional survey technique, one of the quantitative research designs was employed. The study was carried out at a Faculty of Education in the…
Descriptors: Knowledge Level, Chemistry, Preservice Teachers, Elementary School Teachers
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Cunningham, William Patrick; Xia, Ian; Wickline, Kaitlyn; Huitron, Eric Ivan Garcia; Heo, Jun – Journal of Chemical Education, 2018
A procedure for the study of structural differences and intermolecular attraction between ethanol and 1-butanol based in laboratory work is described. This study provides comparisons of data retrieved from both a determination of boiling point and gas chromatography traces for the mixture. The methodology reported here should provide instructors…
Descriptors: Science Instruction, College Science, Science Laboratories, Hands on Science
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Militello, Kevin T.; Lazatin, Justine C. – Biochemistry and Molecular Biology Education, 2017
Clustered regularly interspaced short palindromic repeats (CRISPRs) represent a novel type of adaptive immune system found in eubacteria and archaebacteria. CRISPRs have recently generated a lot of attention due to their unique ability to catalog foreign nucleic acids, their ability to destroy foreign nucleic acids in a mechanism that shares some…
Descriptors: Undergraduate Students, Biochemistry, Molecular Biology, Science Laboratories
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Domínguez, Moralba; Cortes-Figueroa, Jose´ E.; Meléndez, Enrique – Journal of Chemical Education, 2018
Bioinorganic topics are ubiquitous in the inorganic chemistry curriculum; however, experiments to enhance understanding of related topics are scarce. In this proposed laboratory, upper undergraduate students assess the biological interaction of molybdenocene dichloride (Cp2MoCl2) with bovine serum albumin (BSA) by fluorescence spectroscopy.…
Descriptors: Chemistry, Science Instruction, College Science, Undergraduate Study
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