Tags: nanoparticles

Description

In nanotechnology, a particle is defined as a small object that behaves as a whole unit in terms of its transport and properties. It is further classified according to size: in terms of diameter, fine particles cover a range between 100 and 2500nanometers, while ultrafine particles, on the other hand, are sized between 1 and 100 nanometers. Similar to ultrafine particles, nanoparticles are sized between 1 and 100 nanometers.

Learn more about quantum dots from the many resources on this site, listed below. More information on Nanoparticles can be found here.

Teaching Materials (1-20 of 38)

  1. Cadmium Selenide Synthesis, Characterization and Modeling

    22 Oct 2021 | | Contributor(s):: Shelby Hatch, Evan R. Trivedi, Baudilio Tejerina, George C. Schatz

    This is a combined experiment/computational lab in which cadmium selenide quantum dot nanoparticles are synthesized, their spectra are studied, and the results are modeling using the CNDO/INDO semiempirical electronic structure code. Synthesis and Size Dependent Properties of CdSe Quantum...

  2. Sand and Multiple Light Scattering

    23 Aug 2021 | | Contributor(s):: Denise Kapler, NNCI Nano

    Nanoparticles and other nanoscale materials are often analyzed through the specialized use of light scattering. Several techniques use the light scattered from small particles to estimate their size distribution; these techniques employ light absorption, laser diffraction, and dynamic light...

  3. Optical and Thermodynamic Properties of Gold Metal Nanoparticles - Effect of Chemical Functionalization

    27 May 2021 | | Contributor(s):: Baudilio Tejerina, George C. Schatz, Marcelo Carignano

    This laboratory is intended to introduce the student to the use of semiempirical electronic structure methods. In particular, the semiempirical methods will be applied to the study of metallic clusters and the interaction of the clusters with discrete molecular systems such as pyridine.

  4. Encapsulación y Liberación Controlada: Macro Cápsulas (Encapsulation & Controlled Release)

    30 Jun 2020 | | Contributor(s):: Nano-Link Center for Nanotechnology Education, James J Marti, Kyle Forgette, Rodfal Alberto Rodriguez (editor), María Teresa Rivera (editor)

    Este módulo introduce el proceso de la formación de macro cápsulas y el concepto de autoensamblaje. Formar cápsulas a escalas macro, micro y nano tiene aplicaciones muy importantes en la liberación de medicamentos, cosméticos, tecnología de...

  5. Nano-concreto (Nanocrete)

    16 Jun 2020 | | Contributor(s):: kim Grady, Jim Marti (editor), Deb Newberry (editor), Rodfal Alberto Rodriguez (editor), María Teresa Rivera (editor), Nano-Link Center for Nanotechnology Education

    Este módulo le presenta a los estudiantes la nanotecnología, procesos y métodos que están siendo probados por la industria para preparar productos y sistemas cementosos fuertes y livianos. El módulo lleva al estudiante a través del procesamiento de un...

  6. Spectrophotometry of Metal Nanoparticles

    16 Jun 2020 | | Contributor(s):: Chris Kaus, James J Marti, NNCI Nano

    This activity has students chemically synthesize gold and silver nanoparticles, measure the spectra of light absorption and transmission by these particles, compare these spectra to those of known-sized particles, and then estimate the size distribution of the particles they have made. By using...

  7. Nanopartículas y Protectores Solares (Nanoparticles and Sunscreen)

    22 Apr 2020 | | Contributor(s):: Nano-Link Center for Nanotechnology Education, Thomas Deits, Jim Marti (editor), Rodfal A. Rodríguez (editor), María T. Rivera (editor)

    En esta actividad, los estudiantes son introducidos a la función de los protectores solares y aprenden cómo se pueden utilizar las nanopartículas para proteger a las personas de la radiación ultravioleta (UV). Utilizan papel foto-crómico como sensor UV,...

  8. Using Biosynthesized Silver Nanoparticles to kill Antibiotic Resistant E. Coli.

    17 Apr 2020 | | Contributor(s):: Michael Falck, James Marti, NNCI Nano

    In this lab students will become familiar with biosynthesized silver nanoparticles, or bSNP’s. As part of the lesson, students will learn the potential of using biosynthesized silver nanoparticles for use as antimicrobials against antibiotic-resistant bacteria ...

  9. Nanoparticles and Sunscreen

    16 Apr 2020 | | Contributor(s):: Nano-Link Center for Nanotechnology Education, Thomas Deits, Jim Marti (editor), Christopher Kumm

    In this module, students are introduced to the function of sunscreen and learn how nanoparticles can be used to protect people from ultraviolet radiation.  They use photochromic paper as a UV sensor, place samples of different types of sunscreen over this UV sensor, expose their samples to...

  10. Water Filtration and Purity of Water - Getting Down to the Nanoscale

    13 Feb 2020 | | Contributor(s):: David Mann, NNCI Nano

    This is a three part lesson which begins with familiarizing students with SI prefixes and the nanoscale.  In Lesson 2 students test a local water supply. It is designed to be used as an extension to classroom activities related to treating foul water for consumption. This activity should...

  11. NNCI Outreach Demonstration Guide

    10 Feb 2020 | | Contributor(s):: Nancy Healy, NNCI Nano

    This compendium of demonstrations includes 17 activities that can be used to demonstrate topics to students and the general public.  They are useful for science festivals, family science nights, and science cafes.  ...

  12. Nanocrete

    06 Feb 2020 | | Contributor(s):: kim Grady, James Marti (editor), Deb Newberry (editor), Nano-Link Center for Nanotechnology Education

    This module introduces students to the nanotechnologies, processes, and methods being tested by industry to prepare strong and lightweight cementitious products and systems. The module takes the learner through processing a material (called microgrinding or powder milling) to reduce its size...

  13. Encapsulation & Controlled Release

    05 Feb 2020 | | Contributor(s):: James J Marti, Kyle Forgette, Nano-Link Center for Nanotechnology Education

    This module introduces the process of forming macrocapsules and the concept of self-assembly. Forming capsules at the macro, micro, and nano levels have very important applications in drug delivery, cosmetics, food technology, and cleaning up environmental toxins. The module includes a...

  14. Surface Area to Volume of Nanoparticles

    28 Jan 2020 | | Contributor(s):: Manuel Cassilas, NNCI Nano

    This two part lesson is designed to help students understand how nanoparticles may be more effective catalysts by investigating how the surface area-to-volume ratio of a substance is affected as its shape and size changes. This lab is meant to complement a chemistry unit on catalysts....

  15. Assessment of Inhibition of Bacteria by Silver Colloid-Impregnated Bandages

    28 Jan 2020 | | Contributor(s):: Heath Stout, Elinor Graf, Joann Dickert, NNCI Nano

    This lab is designed to have students develop and implement their own experiment to test the antimicrobial properties of silver nanoparticles. Students will be required to document and communicate the entire process via their scientific notebook. Students will also consider the implications and...

  16. The Effects of Colloidal Silver on Microbial Growth: Investigating Snake Oil Science

    28 Jan 2020 | | Contributor(s):: Rebekah Ravgiala, NNCI Nano

    This is a two part lesson focused on the use of colloidal silver as an antibacterial agent.The purpose of this activity is to use electro-chemistry techniques to generate colloidal silver and then utilize the colloidal silver to determine if the growth of the bacteria Saccharomyces cerevisiae...

  17. Nanoparticles Land to Ocean: Understanding the Effect of Nanoparticle Pollutants

    15 Jan 2020 | | Contributor(s):: Chloe Figuerido, NNCI Nano (editor)

    Pollution, both macroscopic and microscopic, is an important environmental issue for aquatic ecosystems. For this lab, students will model how nanoparticle pollution travels from land to water. This lab isa 2-part series of labs designed to help students understand the effect that nanoscale...

  18. Quantum Dots: Real-world Particles in a Box

    15 Jan 2020 | | Contributor(s):: Joyce Allen, NNCI Nano

    The purpose of this activity is to show that nanosize particles of a given substance often exhibit different properties and behavior than macro or micro size particles of the same material. The property studied in this activity is the absorption and reflection of light which is based on energy...

  19. How Catalysts Work - A Nanoscale Phenomenon

    13 Jan 2020 | | Contributor(s):: Manueal Casillas, NNCI Nano

    This activity helps students understand how catalysts work on the nanoscale. Catalyst are more efficient when on the nanoscale because of the large amount of surface area in comparison to volume. This is a great way to introduce or review reactants, catalysts, and adsorption, desorption, and...

  20. Lab on a Slab: Microfluidics Activity

    13 Jan 2020 | | Contributor(s):: John Gomm, NNCI Nano

    Microfluidics is a technique for manipulating liquid samples. With one drop of liquid sample, small devices and channels can be used with nanoparticles for sensitive detection of chemicals. In this lab, students will create a fluidic device with agar gel and use it to test and diagnose three...