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金纳米颗粒

Gold Colloids (Sols)

        纳米技术是一门专门研究纳米材料的科学,纳米材料的规格通常小于100nm。
金纳米颗粒试剂为金纳米颗粒悬浮在溶剂中,溶剂通常为水。这种试剂具有特殊的光学、电学和热学性质,被广泛应用于诊断(侧向层析),显微镜技术和电子工业。
 
BBI 深知不同客户具有不同需求,因此我们提供了多种规格的金纳米颗粒,大小范围从2nm 到 250nm,以满足不同的应用。
 
应用于快速诊断检测的金
在侧向层析中,胶体的质量和性能对于结果的稳定性和精确性十分关键。金纳米颗粒正好具有卓越的稳定性和灵敏度,在对检测灵敏度要求越来越高的时代,金纳米颗粒成为了最可靠的原材料,并能快速提供可视化结果。
 
BBI独特的生产技术允许进行大批量金纳米颗粒生产,并能保证批次间颗粒大小,扩散能力和形状的重复性。这对制备高质量的胶体金并获得稳定可靠的结果提供了重要的基础。
 
但是,并非只要是金纳米颗粒就能达到以上效果,想了解BBI胶体金的优点。 请观看视频 »
 
BBI 胶体金与众不同
BBI胶体金每年用于超过4亿次检测,我们的胶体金生产技术能够提供以下保证:
 
• 一致性 – 不规则形状比例小于5%, CV 小于8%, 统一的形状和大小保证了能够与抗体均匀的结合,为您的检测提供可靠的结果;
 
• 高稳定性 – 保质期为一年,保证了检测生产制造的稳定性,节省时间并避免不必要的浪费;
 
• 规模化 – 最大批量为350L,保证了供应稳定性;
 
• 品质 – BBI的金纳米颗粒经过最严格的质量检测才会交到客户手中,卓越的品质保证了可靠的结果。
 
BBI每个批次的纳米金颗粒的生产均遵循着严格的标准,进行完善的质控、制造和测试流程。下表列出了不同颗粒大小的规格规格,以确保我们能提供市场上最高规格的纳米颗粒。每个批次至少有两个操作员独立进行测试,以确保质量和批次数据的可重复性。

Nanometer-sized gold particles of uniform shape and size are invaluable tools in nanotechnology (assembled arrays), light scattering (elastic - plasmon resonance; inelastic - Raman effect) and for single molecule detection. Gold nanoparticles can be attached to proteins, alkanethiols and DNA by various methods. Silver nanoparticles are evolving similar functional characteristics to their gold counterparts. 

Ted Pella, Inc. is the leader in offering a wide range of gold nanoparticles for these applications. Talk to our applications engineer to find out about the new developments/applications. We are constantly developing new gold colloids for new nanotechnology applications.

The nanometer sized gold colloids can be characterized as follows:

  • Monodispersed gold nanoparticles supplied in water, having trace amounts of citrate, tannic acid and potassium carbonate
  • Citrate stabilized with a net negative surface charge (Langmuir 2005, 21:9303-9307)
  • Gold colloid pH's range from above 5 for 5nm gold to less than 9 for the larger sized particles (pH increases with size).
  • Available in a size range from 2 to 250nm
  • The particles are invaluable tools for light scattering, either Raman or plasmon resonance (Analytical Chemistry 1999, 71:4903-4908; Analytical BioChemistry 1998, 262:137-156)

The 2nm colloid is too small to scatter light and the solution is clear. The remaining sizes scatter light to different degrees and the solution color changes with increasing particle size. 
 

gold colloids
 

These products are known to be stable for a minimum of one year after opening. To avoid contamination after opening, it is best to handle the product under clean room conditions to avoid contamination by dust or other airborne contaminants. Temperatures for storage, after opening, can vary from 4-8°C (39-46°F) to room temperature depending on whether the application is diagnostic or research oriented. The colloid is stable on boiling and destroyed by freezing. When storing the product below 8°C (46°F) it is the customer's responsibility to ensure that their refrigerator can maintain a constant temperature in the range noted above.



NO FRIDAY/WEEKEND SHIPMENTS
All shipments of Gold Conjugate products must be 
for next day delivery due to temperature requirements.

 

NOTE: Empty cells in the product table below denote items that are no longer available from the manufacturer.

 

Size (nm) Particles/ml   20 ml     100 ml     1 L  
2nm 1.5 x 1014         15701-1
Qty:  
     
5nm 5.0 x 1013   15702-20
Qty:  
  15702-1
Qty:  
  15702-1L
Qty:  
10nm 5.7 x 1012   15703-20
Qty:  
  15703-1
Qty:  
  15703-1L
Qty:  
15nm 1.4 x 1012   15704-20
Qty:  
  15704-1
Qty:  
  15704-1L
Qty:  
20nm 7.0 x 1011   15705-20
Qty:  
  15705-1
Qty:  
  15705-1L
Qty:  
30nm 2.0 x 1011   15706-20
Qty:  
  15706-1
Qty:  
  15706-1L
Qty:  
40nm 9.0 x 1010   15707-20
Qty:  
        15707-1L
Qty:  
50nm 4.5 x 1010   15708-20
Qty:  
  15708-5
Qty:  
  15708-1L
Qty:  
60nm 2.6 x 1010   15709-20
Qty:  
  15708-6
Qty:  
  15709-1L
Qty:  
80nm 1.1 x 1010   15710-20
Qty:  
  15708-8
Qty:  
  15710-1L
Qty:  
100nm 5.6 x 109   15711-20
Qty:  
  15708-9
Qty:  
     
150nm 1.7 x 109   15712-20
Qty:  
  15709-10
Qty:  
     
200nm 7.0 x 108   15713-20
Qty:  
  15709-11
Qty:  
     
250nm 3.6 x 108   15714-20
Qty:  
  15709-12
Qty: