0
Gold colloids have multiple definitions. They have been used for many years as a dietary supplement (see http://www.purestcolloids.com). Gold colloids provide the body with minerals to maintain optimum health. They have been used for many years as a therapeutic for Arthritis. They have also been used in lateral flow applications such as in pregnancy tests (see http://www.bbigold.com). Gold nanoparticles, on the other hand, must possess properties that are specific for Nanotechnology applications. Sample nanotechnology applications include Resonance Light Scattering (RLS), Surface Enhanced Raman (SERS), in-vivo photothermal cancer therapy, imaging, and diagnostics. These applications demand monodispersity in size and shape with highly reactive surfaces because these applications depend on the quality of the individual nanoparticles, not just the properties of the nanoparticles in bulk. This is the definition of nanotechnology. In order to make gold nanoparticles suitable for these applications, the gold nanoparticles must have the following characteristics: 1. Provide rod shapes for in vivo applications. 2. Spherical gold nanoparticles that are not manufactured using thiol or citrate chemistry which result in unreactive, polydisperse gold nanoparticles. 3. Conjugations that are based on solid, covalent bonds, not adsorption which can results in lost conjugations. For gold nanoparticles see Nanopartz at http://www.nanopartz.com.
What else can I help you with?
What is the difference in streak between gold and Fool's Gold?
Gold will have a gold metallic streak, and Fool's Gold (pyrite) will have a greenish black streak.
Example of colloids?
Examples: colloidal gold, milk, mist, styrofoam, fog, mayonnaise, cosmetic gels etc.
Is there a time difference between gold coast airport in Australia and Byron bay Au?
Byron Bay is one hour ahead of Gold Coast only during Daylight Saving Time, which begins on the 1st Sunday of October and ends on the 1st Sunday of April. There is no time difference between them between April and October.
What are the physical properties of rose gold?
Rose gold is made up of 75% gold, 22.25% copper and 2.75% silver. The only difference between rose gold and yellow gold is the difference in colour. Due to this fact, the properties of rose gold are similar to yellow gold. That is, - it is a soft metal - good conductor of electricity - man made using other metals - quite decorative due to its colour
How do you make a colloidal gold generator?
You can make colloidal with low voltage electrolysis you need about 30 volts dc at 500ma, a pure gold anode, a copper cathode, ordinary table salt, and tri-sodium citrate. The electrical current along with the salt (sodium chloride) produces gold chloride, which is reduced back to metal nanoparticles by the tri-sodium citrate which is a reducing agent and stabilizer.
What is a nanoparticles?
its is a nanoparticle of gold
Why are gold nanoparticles red?
Gold nanoparticles appear red because of a phenomenon called "localized surface plasmon resonance." This occurs when the electrons on the surface of the gold nanoparticles vibrate in response to light, absorbing and scattering certain wavelengths of light, which gives them their red color.
What does gold do in injected into your body?
Gold nanoparticles can be injected into people to check for tumors
What is the difference in weight between platinum and gold?
The difference in weight between platinum and gold is that platinum is denser and heavier than gold.
Is there a difference between 9kt gold and 9ct gold?
No, there is no difference between 9kt gold and 9ct gold; both refer to the same thing - gold that is 37.5% pure gold by weight.
How do scientist determine the different between gold and fools gold?
by the the difference between their density
What is the price difference between a platinum and gold ring?
The price difference between a platinum and gold ring is a major difference. Metals are priced on the weight and platinum is heavier than gold, and its more pure and harder to make then gold.
What is the difference between a gold specimen and a gold nugget?
It can be the same thing.
What is the difference between kdm gold and hallmark gold?
The difference between the two types of gold is KDM is mixed with Cadmium which is harmful for human skin. Hallmark gold is pure gold and follows the Indian standard specifications.
What is aggregation of nanoparticles?
Aggrgation of nanoparticles is where they stick together. This is undesirable in nanoparticle solutions, we want each nanoparticle to remain seperate. To combat this differing amounts of salts can be added to stop agglomeration, sodium citrate is one that is used for silver and gold nanoparticles. The zeta potential of the nanoparticle is a masure of its overall charge, ideally we want nanoparticles with a high positive or negative zeta potential as like charges repel each other and will stop nanoparticles from agglomerating.
What is the difference between gold and golden?
gold is a metal.while golden means a thing made of gold.
What is chloride of gold used for.?
Gold chloride is used in the preparation of gold nanoparticles, which have applications in catalysis, electronics, and medical diagnostics. It is also used in the manufacturing of gold plating for jewelry and electronics.
