Innovating Science® Engineer and Explore Your Own Enteric Coated Drugs In this lab, students will learn the basic structures and pathway of the digestive system and understand the different functions of the stomach and the small intestine in regards to digestion. They will investigate how the properties of different enteric coatings react in different sections of the digestive system. Next they will explore the purpose of an enteric coating and make a simulated “coating” and engineer a coating most suitable for certain pharmaceutical needs. This lab was written by a Biomedical Engineer and has enough materials for 15 groups. Includes Teacher’s manual and student guide. Kit Includes: 200mL Isopropyl alcohol 99% 4g Alginic acid sodium salt 150mL Sodium hydroxide 10M 2 Aspirin tablets, regular 30 Pipettes 1pkg Coverslips
34g Shellac orange flakes 2 x 25mL Hydrochloric acid 10M 2 Aspirin tablets, enteric-coated 50 5oz cups 45 Beads, white 15 Spot plates
DOT Info: UN1824, Sodium hydroxide solution, 8, II, Ltd Qty UN1219, Isopropanol, 3, II, Ltd Qty WARNING: This product can expose you to chemicals including Acetyl Salicylic Acid/Aspirin, which is known to the State of California to cause reproductive harm. For more information go to www.P65Warnings.ca.gov.
IS3401 $61.75
Biomaterials to Make Your Own Contact Lenses Engineers play an integral role in the process of finding a “perfect” material or ratio of materials to maximize the desired properties of an invention and decrease the amount of negative effects of other properties. For example, when developing the perfect material for use in contact lenses, an engineer will have to test many different materials before finding the right one. A hydrogel is a polymer similar to plastic that has favorable optical properties and favorable flexibility/strength but like paper and glasses/ceramics is hydrophilic, which is necessary for a contact lens to function properly. Testing a hydrogel, which is favorable for all three of the main properties needed for a contact lens to function properly, is the main job of a biomedical engineer developing contact lenses today. They make a hydrogel and find the perfect “ratio” of polymer to water. The composition of the hydrogel needs to be hydrophilic enough to maintain a wet environment in the eye but not too hydrophilic so that the contact begins to swell and change size and shape. Students will engineer a lens using 2 different materials. They will determine the correct material and the concentration that has similar properties as a contact lens, while discovering the correct optical properties, tensile strength and hydrophobicity. Kit contains enough materials for 15 groups. Teacher’s Manual and Student Study Guide copymasters are included. Kit Includes: 300g Gelatin Powder 15 pcs Zinc Metal 15 Plastic Pipettes 45 Petri Dishes 1pkg Glass Cover Slips 15 pcs Chromatography Paper 15 Plastic Microscope Slides 15 Glass Microscope Slides 1pkg Toothpicks 1 bar Soap DOT Info: Non-regulated
IS3402 $75.20
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