| Journal Articles: 10 results |
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Demonstrating Encapsulation and Release: A New Take on Alginate Complexation and the Nylon Rope Trick Andrienne C. Friedli and Inge R. Schlager
Three variations on a classroom demonstration of the encapsulation of droplets and evidence for release of the interior solution are described. The first two demonstrations mimic biocompatible applications of encapsulation. A third encapsulation exercise exploits the irreversible interfacial polymerization of diamine and diacid chloride to form membranes and illustrates the detection of diamine release from the capsule using an indicator.
Friedli, Andrienne C.; Schlager, Inge R. J. Chem. Educ. 2005, 82, 1017.
Biotechnology |
Acids / Bases |
Applications of Chemistry |
Carbohydrates |
Consumer Chemistry |
Membranes
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Tensile Strength Measurements on Biopolymer Films Eugene S. Stevens and Mark D. Poliks
Measuring the tensile strength of biopolymer films using a simple student apparatus; results are compared with data obtained from industry-standard equipment.
Stevens, Eugene S.; Poliks, Mark D. J. Chem. Educ. 2003, 80, 810.
Biotechnology |
Carbohydrates |
Industrial Chemistry |
Laboratory Equipment / Apparatus |
Materials Science |
Proteins / Peptides
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Enzymatic Spectrophotometric Reaction Rate Determination of Glucose in Fruit Drinks and Carbonated Beverages. An Analytical Chemistry Laboratory Experiment for Food Science-Oriented Students Argyro-Maria G. Vasilarou and Constantinos A. Georgiou
This laboratory experiment demonstrates the implementation of reaction rate kinetic methods of analysis, the use of enzymes as selective analytical reagents for the determination of substrates, the kinetic masking of ascorbic acid interference, and the analysis of glucose in drinks and beverages.
Vasilarou, Argyro-Maria G.; Georgiou, Constantinos A. J. Chem. Educ. 2000, 77, 1327.
Enzymes |
Food Science |
Kinetics |
Quantitative Analysis |
Carbohydrates
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The Other Double Helix--The Fascinating Chemistry of Starch Robert D. Hancock and Bryon J. Tarbet
The chemistry of starch, particularly the structure of starch and starch granules.
Hancock, Robert D.; Tarbet, Bryon J. J. Chem. Educ. 2000, 77, 988.
Bioorganic Chemistry |
Carbohydrates |
Food Science |
Stereochemistry |
Applications of Chemistry |
Molecular Properties / Structure
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Demonstration of Optical Rotatory Dispersion of Sucrose S. M. Mahurin, R. N. Compton, and Richard N. Zare
A method for demonstrating and measuring the optical activity of chiral molecules in solution is described in which the rotation of linearly polarized light is directly observed at right angles to the propagation of light in the liquid.
Mahurin, S. M.; Compton, Robert N.; Zare, Richard N. J. Chem. Educ. 1999, 76, 1234.
Instrumental Methods |
Lasers |
Spectroscopy |
Carbohydrates
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Protecting Groups in Carbohydrate Chemistry Sigthór Pétursson
The most important protecting groups in carbohydrate chemistry are reviewed. The paper is aimed at those beginning to specialize in synthetic carbohydrate chemistry and at teachers with other specialties who wish to go beyond the content of general organic chemistry textbooks.
Petursson, Sigthor. J. Chem. Educ. 1997, 74, 1297.
Carbohydrates |
Molecular Properties / Structure |
Synthesis
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Carbohydrate stereochemistry Shallenberger, Robert S.; Wienen, Wanda J.
A progress in the development of general stereochemical principles has been significantly influenced by studies that led to determination of the crystalline and solution structures of sugars, the subject of carbohydrate chemistry is developed here in historical fashion.
Shallenberger, Robert S.; Wienen, Wanda J. J. Chem. Educ. 1989, 66, 67.
Carbohydrates |
Stereochemistry
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Organic lecture demonstrations Silversmith, Ernest F.
Organic chemistry may not be known for its spectacular, attention getting chemical reactions. Nevertheless, this author describes a few organic chemistry reactions that put points across and generate interest. This article provides a convenient sources of demonstrations and urges others to add to the collection. Demonstrations concerning: carbohydrates, spectroscopy, proteins, amines, carbohydrates, carboxylic acids, and much more.
Silversmith, Ernest F. J. Chem. Educ. 1988, 65, 70.
Molecular Properties / Structure |
Nucleophilic Substitution |
Acids / Bases |
Physical Properties |
Alkenes |
Stereochemistry |
Enantiomers |
Chirality / Optical Activity |
Aldehydes / Ketones |
Alcohols
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Biochemistry off the shelf Wilson, Jerry L.
Rather than using animal sources for biochemistry experiments, non-animal sources are inexpensive, readily available, and require no special storage.
Wilson, Jerry L. J. Chem. Educ. 1985, 62, 796.
Enzymes |
Carbohydrates |
Lipids |
Metabolism
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Cycloamyloses Bergeron, Raymond J.
Examines an unusual carbohydrate system of current interest in the hope of generating some enthusiasm for the topic.
Bergeron, Raymond J. J. Chem. Educ. 1977, 54, 204.
Carbohydrates |
Molecular Properties / Structure |
Thermodynamics |
Kinetics |
Enzymes |
Spectroscopy
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