730807

胶态银溶液

nanoparticles, 40 nm particle size (TEM), 0.02 mg/mL in aqueous buffer, contains sodium citrate as stabilizer

• 同義詞: Colloidal silver
• 線性公式: Ag
• CAS號碼: 7440-22-4
• 分子量：: 107.87
• MDL號碼: MFCD00003397
• 分類程式碼代碼: 12352302
• PubChem物質ID: 329764597
• NACRES: NA.23

屬性

• 形狀: nanoparticles
• 品質等級: 100
• 包含: sodium citrate as stabilizer
• 濃度: 0.02 mg/mL in aqueous buffer
• 折射率: n20/D 1.333
• 粒徑: 40 nm (TEM)
• 密度: 0.990 g/mL at 25 °C
• 螢光: λ_em 412 nm FWHM 63 nm
• 儲存溫度: 2-8°C
• SMILES 字串: [Ag]
• InChI: 1S/Ag
• InChI 密鑰: BQCADISMDOOEFD-UHFFFAOYSA-N

描述

一般說明

Our silver nanoparticles (40 nm in diameter) are spherical nanoparticles of metallic silver dispersed in an aqueous citrate buffer. This buffer stabilizes the dispersion; citrate ions adsorb onto the surface of the silver nanoparticles and create a protective layer that prevents aggregation. Because of the nanoparticles′ small size the nanoparticles exhibit quantum confined optical properties, most notably an emission wavelength of (λem) of412 nm with a full width at half maximum (FWHM) of only 63 nm, owing to the monodispersity of the particles. The optoelectronic properties in combination with a high surface area make our silver nanoparticles useful in biosensors and fluorescent imaging for the sensitive detection of biomolecules, pathogens, and environmental contaminants.

應用

• Silver as acrolein hydrogenation catalyst: intricate effects of catalyst nature and reactant partial pressures.：研究用银作为丙烯醛氢化反应的催化剂，着重在催化剂性质和反应气体分压的复杂作用，揭示化工生产应用前景(Bron et al., 2007)。
• Surface-enhanced Raman analysis of sulfa drugs on colloidal silver dispersion.：用胶体银分散体通过表面增强拉曼光谱(SERS)分析磺胺药物。可改进药物研究的检测方法(Sutherland et al., 1990)。

安全資訊

• 象形圖: GHS09
• 訊號詞: Warning
• 危險聲明: H410
• 防範說明: P273 - P391 - P501
• 危險分類: Aquatic Acute 1 - Aquatic Chronic 1
• 儲存類別代碼: 12 - Non Combustible Liquids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable