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Marsiglia, William M.; Qamra, Rohini; Jackson, Kimberly M.; Traaseth, Nathaniel J. – Journal of Chemical Education, 2020
The design of undergraduate laboratory courses that provide meaningful research-based experiences enhances undergraduate curricula and prepares future graduate students for research careers. In this article, a course-based undergraduate research experience (CURE) laboratory module was designed for upper-division undergraduate biochemistry and…
Descriptors: Biochemistry, Science Instruction, College Science, Student Research
Jie Xu; Zhihua Shao; Song Jia; Jihong Sha; Jiao Li; Furong Gao; Xiujuan Shi; Juan Wang; Caixia Jin; Mei Jiang; Haibin Tian; Jinfeng Cao; Hu Pu; Lei Xu; Lixia Lu – Biochemistry and Molecular Biology Education, 2024
The laboratory practice "Primary culture and directional differentiation of rat bone marrow mesenchymal stem cells (BMSCs)" is part of a required course for sophomore medical students at Tongji university, which has been conducted since 2012. Blended learning has been widely applied in medical courses. Based on a student-centered…
Descriptors: Cytology, Biochemistry, Science Instruction, Laboratory Experiments
Debbert, Stefan L.; Hoh, Bradley D.; Dulak, David J. – Journal of Chemical Education, 2016
In this experiment for an introductory undergraduate organic chemistry lab, students tetraalkylate tertbutylcalix[4]arene, a bowl-shaped macrocyclic oligophenol, and examine the supramolecular chemistry of the tetraether product by proton nuclear magnetic resonance (NMR) spectroscopy. Complexation with a sodium ion reduces the conformational…
Descriptors: Synthesis, Undergraduate Students, Organic Chemistry, Laboratory Experiments
Newman, Karla – Journal of Chemical Education, 2018
Almost all commercial quadrupole ICP-MS instruments use collision/reaction cells to either attenuate spectral interferences or shift the analyte of interest to an interference-free "m/z" (e.g., by O addition). A laboratory practical was developed to introduce the students to the basic operating principles of ICP-MS using a hands-on…
Descriptors: Molecular Structure, Spectroscopy, College Science, Laboratory Experiments
Halepas, Steven; Hamchand, Randy; Lindeyer, Samuel E. D.; Bru¨ckner, Christian – Journal of Chemical Education, 2017
A laboratory experiment is described that extracts the tetrapyrrolic teal-colored biliverdin IXa, as its dimethyl ester, from commercially available emu eggshells. The extraction of ~10 mg samples of biliverdin is simple and requires two 3 h lab periods: A two-step acid digestion and liquid-liquid extraction, followed by short silica gel flash…
Descriptors: Animals, Science Instruction, Laboratory Experiments, Chemistry
Morton, Janine G.; Joe, Candice L.; Stolla, Massiel C.; Koshland, Sophia R.; Londergan, Casey H.; Schofield, Mark H. – Journal of Chemical Education, 2015
Variable temperature NMR spectroscopy is used to determine the ?H° and ?S° of hydrogen bond formation in a simple diamide. In this two- or three-day experiment, students synthesize N,N'-dimethylmalonamide, dimethylsuccinamide, dimethylglutaramide, or dimethyladipamide from methylamine and the corresponding diester (typically in 50% recrystallized…
Descriptors: Thermodynamics, Chemistry, Spectroscopy, Science Experiments
Gaynor, James D.; Wetterer, Anna M.; Cochran, Rea M.; Valente, Edward J.; Mayer, Steven G. – Journal of Chemical Education, 2015
Raman spectroscopy is a powerful experimental technique, yet it is often missing from the undergraduate physical chemistry laboratory curriculum. Tetrachloromethane (CCl[subscript 4]) is the ideal molecule for an introductory vibrational spectroscopy experiment and the symmetric stretch vibration contains fine structure due to isotopic variations…
Descriptors: Spectroscopy, Prediction, Chemistry, Laboratory Experiments
Hubler, Tina; Adams, Patti; Scammell, Jonathan – American Biology Teacher, 2015
The molecular basis of evolution is an important and challenging concept for students to understand. In a previous article, we provided some of the scientific background necessary to teach this topic. This article features a series of laboratory activities demonstrating that molecular events can alter the genomes of organisms. These activities are…
Descriptors: Laboratory Experiments, Science Activities, Molecular Biology, Genetics
Eirin-Lopez, Jose M. – Biochemistry and Molecular Biology Education, 2013
The study of chromatin constitutes one of the most active research fields in life sciences, being subject to constant revisions that continuously redefine the state of the art in its knowledge. As every other rapidly changing field, chromatin biology requires clear and straightforward educational strategies able to efficiently translate such a…
Descriptors: Undergraduate Students, Information Science, Evolution, Physics
Adesoye, Olumuyiwa G.; Mills, Isaac N.; Temelkoff, David P.; Jackson, John A.; Norris, Peter – Journal of Chemical Education, 2012
Stereospecific S[subscript N]2 conversion of configurationally pure acetobromoglucose (2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl bromide) to the corresponding beta-D-glucopyranosyl azide is a useful exercise in the advanced organic undergraduate teaching laboratory. The procedure is safe and suitable for small-scale implementation, and firm…
Descriptors: Science Instruction, Organic Chemistry, Spectroscopy, College Science
Garrett, Teresa A.; Rose, Rebecca L.; Bell, Sidney M. – Biochemistry and Molecular Biology Education, 2013
In this laboratory module, introductory biochemistry students are exposed to two-dimensional [superscript 1]H-nuclear magnetic resonance of glycerophospholipids (GPLs). Working in groups of three, students enzymatically synthesized and purified a variety of 2-acyl lyso GPLs. The structure of the 2-acyl lyso GPL was verified using [superscript…
Descriptors: Diagnostic Tests, Science Laboratories, Biochemistry, College Science
Klotz, Elsbeth; Mattson, Bruce – Journal of Chemical Education, 2009
In these two classroom demonstrations, students observe the reaction between H[subscript 2] gas and Pd foil. In the first demonstration, hydrogen and palladium combine within one minute at 1 atm and room temperature to yield the non-stoichiometric, interstitial hydride with formula close to the maximum known value, PdH[subscript 0.7]. In the…
Descriptors: Kinetics, Inorganic Chemistry, Demonstrations (Educational), Laboratory Procedures
Gozzi, Christel; Bouzidi, Naoual – Journal of Chemical Education, 2008
The aim of this experiment is to study and calculate the kinetic constant of a Heck reaction: the arylation of but-3-en-2-ol by iodobenzene catalyzed by palladium acetate in presence of triethylamine in DMF. The reaction leads to a mixture of two ketones. Students use GC analysis to quantify reagents and products of reaction. They control the…
Descriptors: Kinetics, Organic Chemistry, Laboratory Experiments, Molecular Structure
Niewahner, J. H.; Walters, Keith A.; Wagner, Ashley – Journal of Chemical Education, 2007
The three-step synthesis of Geodken's macrocycle, H[subscript 2]C[subscript 22]H[subscript 22]N[subscript 4], (5,14-dihydro-6,8,15,17-tetramethyldibenzo[b,i]-[1,4,8,11] tetraazacyclotetradecahexane), in an overall yield of 65% is described. By utilizing the synthesis of the macrocycle's dichloride salt, H[subscript 2]C[subscript 22]H[subscript…
Descriptors: Inorganic Chemistry, Undergraduate Students, Undergraduate Study, Laboratory Experiments
Martinez, Manuel; Muller, Guillermo; Rocamora, Merce; Rodriguez, Carlos – Journal of Chemical Education, 2007
The series of experiments proposed for advanced undergraduate students deal with both standard organometallic preparative methods in dry anaerobic conditions and with a kinetic study of the mechanisms operating in the substitution of square-planar complexes. The preparation of organometallic compounds is carried out by transmetallation or…
Descriptors: Undergraduate Students, Kinetics, Inorganic Chemistry, Undergraduate Study
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