730793

胶态银溶液

nanoparticles, 20 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: 329764595
• 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: 20 nm (TEM)
• 密度: 0.986 g/mL at 25 °C
• 螢光: λ_em 401 nm FWHM 66 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 20 nm silver nanoparticles are ideal for biosensing and fluorescent imaging applications.These spherical particles are stabilized in an aqueous citrate buffer to prevent aggregation. Silver nanoparticles efficiently absorb and scatter light due to the conduction electrons on their surface undergoing collective oscillations, known as surface plasmon resonance (SPR), when excited by specific wavelengths. Unlike gold nanoparticles, which absorb at longerwavelengths (500+ nm), silver nanoparticles absorb at shorter wavelengths(400-450 nm). At a 20 nm size, our nanoparticles have a peak absorptionwavelength (λ) of 400 nm and a narrow full width at half maximum (FWHM) of 66nm, thanks to their high monodispersity. These optoelectronic properties, combined with their high surface area, make them effective for detecting biomolecules, pathogens, and environmental contaminants.

應用

• 磺胺类药物在胶体银分散体上的表面增强拉曼分析。：研究探讨了胶体银分散体在磺胺类药物表面增强拉曼散射（SERS）分析中的应用。该研究证明了银纳米颗粒在增强拉曼信号方面的潜力，使其成为检测和分析低浓度药物的宝贵技术（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