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Modeling Nanotechnology—Encapsulation by Sodium Alginate—Student Laboratory Kit

By: Brent Criswell, Central Columbia H.S., Bloomsburg, PA

Item #: AP7361 

Price: $42.19

In Stock.

With the Modeling Nanotechnology with Encapsulation by Sodium Alginate Laboratory Kit, students will model nanotechnology on a larger scale using sodium alginate, a natural polymer from seaweed. This is an engaging, modern experiment!

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Product Details

Nanotechnology is the study of the preparation and properties of atomic, molecular or macromolecular particles in the size range of 1–100 nanometers. An exciting new breakthrough in nanotechnology involves the delivery and transport of medicines to treatment areas in the body by encapsulating drugs in molecular “cages” consisting of nanoparticles. In this modern, hands-on lab activity, students will model this technology on a larger scale using sodium alginate, a natural polymer from seaweed. When sodium alginate is added to a solution containing calcium ions, calcium alginate precipitates out as microspheres. These “capsules” can be used to trap and also release indicator dye molecules. A engaging modern-chemistry experiment!

Complete for 30 students working in pairs. Reusable 6-well reaction plates are recommended and available separately.


Materials Included in Kit: 
Acetic acid solution, 1 M, 250 mL
Bromphenol blue indicator solution, 0.04%, 30 mL
Calcium chloride solution, 0.3 M, 500 mL
Congo red indicator solution, 0.1%, 30 mL
Iodine, tincture, 30 mL
Sodium alginate, 10 g
Sodium bisulfate, 35 g
Starch, soluble, potato, 4 g
Pipet, Beral-type, thin stem, 90

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Planning and carrying out investigations
Analyzing and interpreting data
Using mathematics and computational thinking
Constructing explanations and designing solutions

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
HS-PS1.A: Structure and Properties of Matter
HS-PS2.B: Types of Interactions

Crosscutting Concepts

Systems and system models
Structure and function

Performance Expectations

HS-PS2-6. Communicate scientific and technical information about why the molecular-level structure is important in the functioning of designed materials.