Nanotechnology Fights Infections

Several companies are researching and experimenting with silver nanoparticles that may prevent infections by killing organisms such as Staphylococcus aureus, E. coli, and other kinds of infectious bacteria and viruses. In their research laboratories, the companies are using silver (colloidal or ionic silver) or silver in solution as a potent antibacterial product. Silver is used as an enhancement in making bandages, dressings, and other health-care products. The silver nanoparticles or...

Pharmaceutical Nanotechnology Research

The National Science Foundation (NSF) expects nanotechnology to accountfor around half of all drugs made and sold by 2010. Demand for nanotechnology health-care products in the United States is projected to increase nearly 50 percent per year to 6.5 billion in 2009. There will be the potential of introducing new, improved cancer and central nervous system therapies. Diagnostic tests, based on quantum dots and imaging agents based on iron oxide nanoparticles will also show strong growth,...

What is the conventional way a person living with diabetes uses to measure and monitor his or her glucose level

Typically a person with diabetes, and depending on the severity of the disease, should sample his or her glucose level at least twice a day. And that is the minimum. Typically it is done 3 to 5 times a day once when you get up, once after breakfast, once after lunch, and once after dinner, and finally once before bedtime. The more often you monitor your readings, the better control you have on the disease. However, the more you monitor, the more painful the process can be for many people with...

Nanorobots and Diabetes

One research group is developing the potential of using nanorobots for treating diabetes. The nanorobots use embedded nanobiosensors in the body to monitor blood glucose levels. The special sensors provide signals to mobile phones carried with the patient. If the glucose level is too low, the nanorobots activate a programmed tune in the cellular phone. The tune alerts the patient to take any necessary action regarding the diabetes. This potential use of the nanorobots may be more convenient and...

Diabetes And Nanotechnology

Glucose is the primary source of energy in the human body. This simple sugar comes from digesting carbohydrates into a chemical that the human body can easily convert to energy. But, when glucose levels in the bloodstream are not properly regulated, a person can develop a serious condition known as diabetes. What happens is that the sugar (glucose) builds up in the blood instead of going to the cells. The American Diabetes Association estimates that 17 million people in the United States have...

NANDtEcHnDLDgY WeB SITES

Please note that the author has made a consistent effort to include up-to-date Web sites. However, over time, some Web sites may no longer be posted. Department of Agriculture (DOA) The Department of Agriculture's multifaceted mission is to ensure a safe food supply care for agricultural lands, forests, and rangelands,. Department of Defense (DOD) The mission of the Department of Defense is to provide the military forces needed to deter war and to protect the security of the United States. http...

Nanotechnology Videos and Audios

The following videos and audios are suggested to enhance your understanding of nanotechnology topics and issues. Some of the videos listed are presented in the chapters. However, you may wish to review other videos as well. Please note that the author has made a consistent effort to include up-to-date Web sites. However, over time, some Web sites may move or no longer be posted. Viewing some of these videos may require special software called plug-ins. Therefore, you will need to download...

Listeria Monocytogenes in Food

Listeria monocytogenes has recently been recognized as an important public health problem in the United States. Listeriosis is a serious infection caused by eating food contaminated with the bacterium. Listeria monocytogenes is found in soil and water. Vegetables can become contaminated from the soil or from manure used as fertilizer. The bacterium has been found in a variety of raw foods, such as uncooked meats and vegetables, as well as in processed foods that became contaminated even after...

Quantum Dots

A quantum dot is a semiconductor nanocrystal that is about 1 to 6 nanometers in diameter. It has a spherical or cubic-like shape consisting of thousands of atoms, A quantum dot is made of cadmium selenide (CdSe), cadmium sulfide (CdS), or cadmium telluride (CdTe) and then coated with a polymer. The coating is used to prevent these toxic chemicals from leaking. The CdS is used for UV-blue, the CdSe for the bulk of the visible spectrum, and the CdTe for the far red and near infrared. The...

Diabetes Research Continues

Other groups are also developing new tools to treat diabetes. In one study, researchers were able to bond insulin molecules and sugar-sensitive proteins to a biodegradable polymer. The polymer nanopar-ticles are injected into a repository under the skin. The nanoparticles When you have time, see the video of this biosensor device at http college. georgetown.edu research molecules 14887 .html can detect a diabetic's glucose levels and release appropriate amounts of insulin to keep blood sugar...

Nano Nano Nano

In this chapter as well as in the others, we will be using terms, such as nanostructures, nanodevices, nanoparticles, nanoscale, nano-medicine, nanowires, nanotubes, nanoengineering, and so forth. The prefix, nano, is used to indicate a tool, an enterprise, a particle, a phenomenon, a project, or a manufactured item operating on or concerned with a scale at one billionth of a meter. If you have time, you may want to watch the video, What is Nanotechnology Professor Wendy Crone narrates the...

Nano Interview Professor Makarand Mak Paranjape PhD Georgetown University

As you learned in earlier chapters and in this one, biosensors have the potential to be used in several fields including human health and food preparation. In this interview, Dr. Paranjape discusses his work Synthetic zeolites are widely used as catalysts in the petrochemical industry. Professor Paranjape's Micro and NanoSystems Group. From left to right Jonathan Hesson researcher , Jianyun Zhou Ph.D. candidate , Vincent Spinella-Mamo Ph.D. candidate , Yogesh Kashte researcher , Sean Flynn...

The Nanotechnology Job Market The Need for Workers

Many jobs will be needed to fill in the vacancies for nanotechnology. The National Science Foundation NSF projects that the nanotechnology job market in the United States will require over 2 million nanotechnology-savvy workers by 2014. The NSF therefore is calling for children between the ages of 10 and 17 to be educated now about the field that will define their job market as adults. Of the 2 million nanotechnology-savvy workers required by 2014, 20 percent are expected to be scientists, with...

What Is Nanotechnology

Nanotechnology is the ability to observe, measure, manipulate, and manufacture things at the nanometer scale. A nanometer nm is an SI Systeme International d'Unites unit of length 10-9 or a distance of one-billionth of a meter. That's very small. At this scale, you are talking about the size of atoms and molecules. To create a visual image of a nanometer, observe the nail on your little finger. The width of your nail on this finger is about 10 million Table 1.1 Some Common Objects in Nanometers...