Gold (Au)
Gold is found as a free metal in nature, occurs in veins and alluvial deposits, and is associated with tellurides, quartz, and pyrite.
In pure form, it's an attractive metallic yellow color, but can be black, ruby, or purple in smaller quantities. As the most malleable and ductile metal, gold is typically alloyed for strength. It conducts heat and electricity, reflects infrared rays, and is mostly unaffected by air and chemicals. Some of gold's 18 isotopes are used in medicine to treat cancer and arthritis.
Sigma Organic Chemistry Gold nanowires | 10ML
Gold nanowires, 10ML
About This Item:
Linear Formula: Au
UNSPSC Code: 12352302
Storage: 2-8C
Sigma Organic Chemistry Gold, nanorods | 25ML
Gold, nanorods, 25ML
About This Item:
UNSPSC Code: 12352200
Storage: 2-8C
Sigma Organic Chemistry Rare earth doped upconversion nanoparticles | 1ML
Rare earth doped upconversion nanoparticles, 1ML
About This Item:
UNSPSC Code: 12352200
Storage: 2-8C
Sigma Organic Chemistry Gold nanorods | 1.75MG | MFCD00003436
Gold nanorods, 1.75MG
About This Item:
MDL Number: MFCD00003436
UNSPSC Code: 12141717
Storage: 2-8C
Sigma Organic Chemistry Gold nanorods | 1.75MG | MFCD00003436
Gold nanorods, 1.75MG
About This Item:
MDL Number: MFCD00003436
UNSPSC Code: 12141717
Storage: 2-8C
Sigma Organic Chemistry Gold nanorods | 1.75MG | MFCD00003436
Gold nanorods, 1.75MG
About This Item:
MDL Number: MFCD00003436
UNSPSC Code: 12141717
Storage: 2-8C
Sigma Organic Chemistry Gold nanorods | 2.5MG | MFCD00003436
Gold nanorods, 2.5MG
About This Item:
MDL Number: MFCD00003436
UNSPSC Code: 12141717
Storage: 2-8C
Sigma Organic Chemistry Gold nanorods | 1.75MG | MFCD00003436
Gold nanorods, 1.75MG
About This Item:
MDL Number: MFCD00003436
UNSPSC Code: 12141717
Storage: 2-8C
Sigma Organic Chemistry Gold | 1EA | 7440-57-5 | MFCD00003436 | >=99.99%
Gold, 1EA
About This Item:
Storage: room temp
Sigma Organic Chemistry Gold | 1EA | 7440-57-5 | MFCD00003436 | >=99.99%
Gold, 1EA
About This Item:
Storage: room temp
Sigma Organic Chemistry Gold | 1EA | 7440-57-5 | MFCD00003436 | 0.995
Gold, 1EA
About This Item:
Storage: room temp
Sigma Aldrich Fine Chemicals Biosciences Aflatoxin B1 BSA Conjugate5MG
Aflatoxin B1 is the most toxic aflatoxin. Aflatoxins are hepatotoxic metabolites that are produced by molds such as Aspergillus flavus and Aspergillus parasiticus. Aflatoxins contaminate human food and animal feed. They are linked to liver cancer immune system suppression reduced growth rates losses in feed efficiency and death. They are naturally found toxic carcinogens and the most widely known mycotoxins. They mainly contaminate fruits vegetables and grains.
Sigma Aldrich Fine Chemicals Biosciences Gold nanoparticles 15 nm d
Gold nanoparticles (AuNPs) ranging from 2-200nm in diameter find applications in diverse fields. They show excellent biocompatibility and attractive physicochemical properties. Poly (ethylene) glycol (PEG) surface coatings on gold nanoparticles help in the reduction of protein adsorption reduce nonspecific interactions with cells and greatly improve the pharmokinetics of these nanoparticles and reduce aggregation of the nanoparticles. PEG layer density depends inversely on the AuNP curvature. Denser coating was possible on smaller AuNPs. AuNPs coated with PEG 5000 exhibited highest colloidal stability. Amine functionalized GNPs which have Poly Ethylene Glycol (PEG) as the ligand or carrier molecule forms a conjugate with siRNA and is extremely useful in RNAi technology. Since it adheres to cell membranes it may find use in cellular and intracellular targeting in targeted drug delivery applications and also used in biodistribution studies.x2020x2020x2020x2020
