Customer Kit #1: Quick and Easy Single Step Gold Nanoparticle Dropwise Kits on any surface
Applications: SPR, filters, surface chemistries. For use to create single particles and close pack surfaces
Nanopartz Gold Nanoparticles for Surfaces, are conjugated specifically for creating monodisperse surface coating of the complete line of Accurate Spherical Gold Nanoparticles and Gold Nanorods (or other shapes and materials upon request). This family of products is well known for creating both monodisperse, single particle, non agglomerated nanoparticles on surfaces, or with greater densities, close pack monolayers. Every batch is completely characterized including size, monodispersity, aggregation, residual chemicals, and concentration. Typical volume is 1mL at a concentration of 50 OD. A Certificate of Analysis (COA) is provided for every order exhibiting TEM and UV-VIS images and data, as well as DLS data. In all cases, the loading of the target is determined.
| Solvent | Dropwise addition | Quick Drying | Even Density Distribution | Particles dry unagglomerated (single particles) | Concentration Controlled By Dilution | Nanoparticles further functionalizable | Bond to glass surface | Separation between nanoparticle and surface (d) | |
| Citrate Capped | Water |
Yes | No | No | No | No | No | Ionic | 0.4nm |
| Nanopartz Surface Polymer | Proprietary | Yes | Yes | Yes | Yes | Yes | No | Ionic | 2nm |
| Nanopartz Covalent Surface Polymer | Proprietary | Yes | Yes | Yes | Yes | Yes | No | Covalent | 2nm |
The first option is a simple citrate stabilized gold nanoparticle. Adding dropwise to the slide surface results in a long drying time since the solvent is water. Additionally because the water dries in rings, the resultant nanoparticles on the surface result in an agglomeration of rings. Typically 10% of nanoparticles dry in an unagglomerated fashion (ie single particles). The result is an ionic attachment to the slide surface that if rehydrated, is removed from the surface. Consequently the nanoparticles are not considered further functionalizable. The citrate ligand length (2) is approximately 0.4nm, providing the spacing between the nanoparticle and the slide surface.
Figure 1. Block diagram of Kit (1) Surface; (2) Spacer; (3) Nanoparticle
The second option utilizes a proprietary Nanopartz Organic Polymer functionalized nanoparticle in a proprietary alcohol. When added to the surface dropwise, this option results in a highly density controllable surface of nanoparticles with more than 80% of the nanoparticles guaranteed to be unagglomerated. Density of the nanoparticles on the surface is controllable through dilution and an even surface dispersion is guaranteed. The product dries in a few seconds and repeat applications can increase the surface density. This option results in nanoparticles that are approximately 1nm (2) from the surface. The ionic bond is not resistant to rehydration so this product is not considered further functionalizable.
The third option utilizes a proprietary Nanopartz Covalent Organic Polymer functionalized nanoparticles in a proprietary alcohol. Like option 2, when added to the surface dropwise, this option results in a highly density controllable surface of nanoparticles with more than 80% of the nanoparticles guaranteed to be unagglomerated. Density of the nanoparticles on the surface is controllable through dilution and an even surface dispersion is guaranteed. The product dries in a few seconds and repeat applications can increase the surface density. This option results in nanoparticles that are approximately 1nm (2) from the surface. This option is different from option 2 in that the result is a covalent (strong) bond to the surface. Repeated washings will not remove these nanoparticles.
Part # PS11- |
Diameter (nm) |
Peak SPR Wavelength (nm) |
NPS/ml |
Molarity (pM) |
Moles |
Molar Ext. (M-1cm-1) |
Absorption Molar Ext. (M-1cm-1) |
Scattering Molar Ext. (M-1cm-1) |
Size Dispersity %PDI |
Size Accuracy (+/- nm) |
1.8 |
1.8 |
n/a |
4.25E+16 |
7.10E+07 |
7.09E-08 |
7.05E+05 |
7.05E+05 |
0.00E+00 |
<35% |
0.1 |
2.2 |
2.2 |
n/a |
2.33E+16 |
3.90E+07 |
3.88E-08 |
1.29E+06 |
1.29E+06 |
0.00E+00 |
<25% |
0.1 |
3 |
3 |
n/a |
9.19E+15 |
1.50E+07 |
1.53E-08 |
3.26E+06 |
3.26E+06 |
0.00E+00 |
<20% |
0.1 |
4 |
4 |
n/a |
3.88E+15 |
6.50E+06 |
6.46E-09 |
7.74E+06 |
7.74E+06 |
0.00E+00 |
<20% |
1 |
5 |
5 |
512 |
1.99E+15 |
3.30E+06 |
3.31E-09 |
1.51E+07 |
1.51E+07 |
0.00E+00 |
<20% |
2 |
10 |
10 |
516 |
2.48E+14 |
4.10E+05 |
4.14E-10 |
1.21E+08 |
1.21E+08 |
0.00E+00 |
<15% |
2 |
15 |
15 |
518 |
7.35E+13 |
1.20E+05 |
1.23E-10 |
4.08E+08 |
4.08E+08 |
0.00E+00 |
<15% |
2 |
20 |
20 |
520 |
3.10E+13 |
5.20E+04 |
5.17E-11 |
9.67E+08 |
9.67E+08 |
0.00E+00 |
<10% |
2 |
25 |
25 |
521 |
1.59E+13 |
2.60E+04 |
2.65E-11 |
1.89E+09 |
1.89E+09 |
0.00E+00 |
<10% |
2 |
30 |
30 |
523 |
9.19E+12 |
1.50E+04 |
1.53E-11 |
3.26E+09 |
3.26E+09 |
0.00E+00 |
<6% |
2 |
35 |
35 |
526 |
5.79E+12 |
9.60E+03 |
9.65E-12 |
5.18E+09 |
5.18E+09 |
0.00E+00 |
<6% |
2 |
40 |
40 |
527 |
3.88E+12 |
6.50E+03 |
6.46E-12 |
7.74E+09 |
7.72E+09 |
2.24E+07 |
<4% |
2 |
45 |
45 |
529 |
2.72E+12 |
4.50E+03 |
4.54E-12 |
1.10E+10 |
1.08E+10 |
2.03E+08 |
<4% |
2 |
50 |
50 |
531 |
1.99E+12 |
3.30E+03 |
3.31E-12 |
1.51E+10 |
1.45E+10 |
5.88E+08 |
<4% |
2 |
55 |
55 |
533 |
1.49E+12 |
2.50E+03 |
2.49E-12 |
2.01E+10 |
1.88E+10 |
1.30E+09 |
<4% |
2 |
60 |
60 |
536 |
1.15E+12 |
1.90E+03 |
1.91E-12 |
2.61E+10 |
2.36E+10 |
2.48E+09 |
<4% |
2 |
65 |
65 |
539 |
9.04E+11 |
1.50E+03 |
1.51E-12 |
3.32E+10 |
2.89E+10 |
4.33E+09 |
<4% |
2 |
70 |
70 |
542 |
7.23E+11 |
1.20E+03 |
1.21E-12 |
4.15E+10 |
3.44E+10 |
7.09E+09 |
<4% |
2 |
75 |
75 |
545 |
5.88E+11 |
9.80E+02 |
9.80E-13 |
5.10E+10 |
4.00E+10 |
1.10E+10 |
<4% |
2 |
80 |
80 |
549 |
4.85E+11 |
8.10E+02 |
8.08E-13 |
6.19E+10 |
4.54E+10 |
1.65E+10 |
<4% |
2 |
85 |
85 |
553 |
4.04E+11 |
6.70E+02 |
6.73E-13 |
7.42E+10 |
5.03E+10 |
2.39E+10 |
<4% |
2 |
90 |
90 |
558 |
3.40E+11 |
5.70E+02 |
5.67E-13 |
8.81E+10 |
5.44E+10 |
3.37E+10 |
<4% |
2 |
95 |
95 |
563 |
2.89E+11 |
4.80E+02 |
4.82E-13 |
1.04E+11 |
5.72E+10 |
4.65E+10 |
<4% |
2 |
100 |
100 |
569 |
2.48E+11 |
4.10E+02 |
4.14E-13 |
1.21E+11 |
5.82E+10 |
6.27E+10 |
<4% |
2 |
150 |
150 |
612 |
7.35E+10 |
1.20E+02 |
1.23E-13 |
4.08E+11 |
0.00E+00 |
4.08E+11 |
<4% |
10 |
200 |
200 |
n/a |
3.10E+10 |
5.20E+01 |
5.17E-14 |
9.67E+11 |
0.00E+00 |
9.67E+11 |
<4% |
10 |
500 |
500 |
n/a |
1.99E+09 |
3.30E+00 |
3.31E-15 |
1.51E+13 |
0.00E+00 |
1.51E+13 |
<4% |
50 |
1000 |
1000 |
n/a |
2.48E+08 |
4.10E-01 |
4.14E-16 |
1.21E+14 |
0.00E+00 |
1.21E+14 |
<4% |
100 |
1500 |
1500 |
n/a |
7.35E+07 |
1.20E-01 |
1.23E-16 |
4.08E+14 |
0.00E+00 |
4.08E+14 |
<4% |
100 |
Optical Density >= 50, 5 for sizes >=500nm
|
Wt conc = 2.5mg/mL, 1mL volume typical
|
Wt % = 0.25%
|
| ppm = 2500 |
%PDI = Std Dev/Size
|
See Tech Note TN801 for definition of terms and method of analysis
|
All specs typical. May vary batch to batch. Exact values are measured for each batch
|
Shape monodispersity (% spheres) > 99.9%
|
Solution default is 18MEG DI water
|
Residual Chemicals < 0.1%
|
Part # PS12- |
Diameter (nm) |
Length (nm) |
Peak SPR Wave (nm) |
Aspect Ratio |
OD SPR (AU) |
Peak LSPR Wave (nm) |
OD LSPR (AU) |
Nanorods /mL |
Wt. conc (ug/ml) |
Wt. % |
PPM |
Molarity (nM) |
Picomoles |
SPR Molar Ext. (M-1cm-1) |
LSPR Molar Ext. (M-1cm-1) |
Peak SPR (nm) |
SPR Linewidth 80% (nm) |
5-808 |
5 |
21 |
808 |
4.2 |
50 |
510 |
10 |
2.39E+14 |
1750 |
0.18% |
1750 |
398.72 |
3.99E+02 |
1.25E+08 |
2.51E+07 |
794-829 |
100 |
5-780 |
5 |
19 |
780 |
3.8 |
50 |
510 |
10 |
2.67E+14 |
1750 |
0.18% |
1750 |
444.72 |
4.45E+02 |
1.12E+08 |
2.25E+07 |
765-794 |
100 |
5-700 |
5 |
15 |
700 |
3 |
50 |
510 |
10 |
3.47E+14 |
1750 |
0.18% |
1750 |
578.14 |
5.78E+02 |
8.65E+07 |
1.73E+07 |
675-725 |
100 |
10-2100 |
10 |
175 |
2100 |
17.5 |
50 |
510 |
10 |
6.73E+12 |
1750 |
0.18% |
1750 |
11.21 |
1.12E+01 |
4.46E+09 |
8.92E+08 |
1900-2300 |
300 |
10-1400 |
10 |
102 |
1400 |
10.2 |
50 |
510 |
10 |
1.17E+13 |
1750 |
0.18% |
1750 |
19.47 |
1.95E+01 |
2.57E+09 |
5.14E+08 |
1300-1500 |
150 |
10-1200 |
10 |
81 |
1200 |
8.1 |
50 |
510 |
10 |
1.48E+13 |
1750 |
0.18% |
1750 |
24.67 |
2.47E+01 |
2.03E+09 |
4.05E+08 |
1132-1300 |
150 |
10-1064 |
10 |
67 |
1064 |
6.7 |
50 |
510 |
10 |
1.81E+13 |
1750 |
0.18% |
1750 |
30.13 |
3.01E+01 |
1.66E+09 |
3.32E+08 |
1022-1132 |
150 |
10-980 |
10 |
59 |
980 |
5.9 |
50 |
510 |
10 |
2.09E+13 |
1750 |
0.18% |
1750 |
34.91 |
3.49E+01 |
1.43E+09 |
2.86E+08 |
965-1022 |
150 |
10-950 |
10 |
55 |
950 |
5.5 |
50 |
510 |
10 |
2.22E+13 |
1750 |
0.18% |
1750 |
37 |
3.70E+01 |
1.35E+09 |
2.70E+08 |
925-965 |
150 |
10-900 |
10 |
50 |
900 |
5 |
50 |
510 |
10 |
2.47E+13 |
1750 |
0.18% |
1750 |
41.11 |
4.11E+01 |
1.22E+09 |
2.43E+08 |
875-925 |
150 |
10-850 |
10 |
45 |
850 |
4.5 |
50 |
510 |
10 |
2.78E+13 |
1750 |
0.18% |
1750 |
46.25 |
4.63E+01 |
1.08E+09 |
2.16E+08 |
829-875 |
100 |
10-808 |
10 |
41 |
808 |
4.1 |
50 |
510 |
10 |
3.10E+13 |
1750 |
0.18% |
1750 |
51.68 |
5.17E+01 |
9.68E+08 |
1.94E+08 |
794-829 |
75 |
10-780 |
10 |
38 |
780 |
3.8 |
50 |
510 |
10 |
3.36E+13 |
1750 |
0.18% |
1750 |
56.06 |
5.61E+01 |
8.92E+08 |
1.78E+08 |
765-794 |
65 |
10-750 |
10 |
35 |
750 |
3.5 |
50 |
510 |
10 |
3.70E+13 |
1750 |
0.18% |
1750 |
61.67 |
6.17E+01 |
8.11E+08 |
1.62E+08 |
725-765 |
50 |
10-700 |
10 |
29 |
700 |
2.9 |
50 |
510 |
10 |
4.44E+13 |
1750 |
0.18% |
1750 |
74 |
7.40E+01 |
6.76E+08 |
1.35E+08 |
675-725 |
40 |
10-650 |
10 |
24 |
650 |
2.4 |
50 |
510 |
10 |
5.55E+13 |
1750 |
0.18% |
1750 |
92.5 |
9.25E+01 |
5.41E+08 |
1.08E+08 |
625-675 |
40 |
10-600 |
10 |
19 |
600 |
1.9 |
50 |
510 |
10 |
7.40E+13 |
1750 |
0.18% |
1750 |
123.34 |
1.23E+02 |
4.05E+08 |
8.11E+07 |
575-625 |
40 |
25-1400 |
25 |
245 |
1400 |
9.8 |
50 |
514 |
15 |
1.12E+12 |
2500 |
0.25% |
2500 |
1.86 |
1.86E+00 |
2.69E+10 |
8.06E+09 |
1232-1500 |
150 |
25-1064 |
25 |
137 |
1064 |
5.5 |
50 |
514 |
15 |
2.05E+12 |
2500 |
0.25% |
2500 |
3.42 |
3.42E+00 |
1.46E+10 |
4.38E+09 |
1022-1232 |
150 |
25-980 |
25 |
119 |
980 |
4.8 |
50 |
514 |
15 |
2.39E+12 |
2500 |
0.25% |
2500 |
3.98 |
3.98E+00 |
1.26E+10 |
3.77E+09 |
965-1022 |
150 |
25-950 |
25 |
102 |
950 |
4.1 |
50 |
514 |
15 |
2.82E+12 |
2500 |
0.25% |
2500 |
4.7 |
4.70E+00 |
1.06E+10 |
3.19E+09 |
925-965 |
150 |
25-900 |
25 |
96 |
900 |
3.8 |
50 |
514 |
15 |
3.01E+12 |
2500 |
0.25% |
2500 |
5.02 |
5.02E+00 |
9.95E+09 |
2.99E+09 |
875-925 |
150 |
25-850 |
25 |
93 |
850 |
3.7 |
50 |
514 |
15 |
3.12E+12 |
2500 |
0.25% |
2500 |
5.2 |
5.20E+00 |
9.61E+09 |
2.88E+09 |
829-875 |
150 |
25-808 |
25 |
90 |
808 |
3.6 |
50 |
514 |
15 |
3.24E+12 |
2500 |
0.25% |
2500 |
5.39 |
5.39E+00 |
9.27E+09 |
2.78E+09 |
794-829 |
150 |
25-780 |
25 |
87 |
780 |
3.5 |
50 |
514 |
15 |
3.36E+12 |
2500 |
0.25% |
2500 |
5.6 |
5.60E+00 |
8.93E+09 |
2.68E+09 |
765-794 |
150 |
25-750 |
25 |
85 |
750 |
3.4 |
50 |
514 |
15 |
3.45E+12 |
2500 |
0.25% |
2500 |
5.75 |
5.75E+00 |
8.70E+09 |
2.61E+09 |
725-765 |
65 |
25-700 |
25 |
75 |
700 |
3 |
50 |
514 |
15 |
3.96E+12 |
2500 |
0.25% |
2500 |
6.61 |
6.61E+00 |
7.57E+09 |
2.27E+09 |
675-725 |
60 |
25-650 |
25 |
71 |
650 |
2.8 |
50 |
514 |
15 |
4.22E+12 |
2500 |
0.25% |
2500 |
7.03 |
7.03E+00 |
7.11E+09 |
2.13E+09 |
625-675 |
60 |
25-600 |
25 |
57 |
600 |
2.3 |
50 |
514 |
15 |
5.43E+12 |
2500 |
0.25% |
2500 |
9.05 |
9.05E+00 |
5.52E+09 |
1.66E+09 |
575-625 |
60 |
25-550 |
25 |
34 |
550 |
1.4 |
50 |
514 |
15 |
1.01E+13 |
2500 |
0.25% |
2500 |
16.91 |
1.69E+01 |
2.96E+09 |
8.87E+08 |
525-575 |
60 |
40-1064 |
40 |
208 |
1064 |
5.2 |
50 |
520 |
20 |
5.30E+11 |
2500 |
0.25% |
2500 |
0.88 |
8.84E-01 |
5.66E+10 |
2.26E+10 |
1022-1232 |
150 |
40-980 |
40 |
180 |
980 |
4.5 |
50 |
520 |
20 |
6.19E+11 |
2500 |
0.25% |
2500 |
1.03 |
1.03E+00 |
4.84E+10 |
1.94E+10 |
875-1022 |
150 |
40-850 |
40 |
148 |
850 |
3.7 |
50 |
520 |
20 |
7.67E+11 |
2500 |
0.25% |
2500 |
1.28 |
1.28E+00 |
3.91E+10 |
1.57E+10 |
829-875 |
150 |
40-808 |
40 |
134 |
808 |
3.4 |
50 |
520 |
20 |
8.56E+11 |
2500 |
0.25% |
2500 |
1.43 |
1.43E+00 |
3.51E+10 |
1.40E+10 |
794-829 |
150 |
40-780 |
40 |
124 |
780 |
3.1 |
50 |
520 |
20 |
9.33E+11 |
2500 |
0.25% |
2500 |
1.55 |
1.55E+00 |
3.22E+10 |
1.29E+10 |
765-794 |
150 |
40-750 |
40 |
112 |
750 |
2.8 |
50 |
520 |
20 |
1.05E+12 |
2500 |
0.25% |
2500 |
1.74 |
1.74E+00 |
2.87E+10 |
1.15E+10 |
725-765 |
150 |
40-700 |
40 |
92 |
700 |
2.3 |
50 |
520 |
20 |
1.31E+12 |
2500 |
0.25% |
2500 |
2.19 |
2.19E+00 |
2.29E+10 |
9.14E+09 |
675-725 |
60 |
40-650 |
40 |
80 |
650 |
2 |
50 |
520 |
20 |
1.55E+12 |
2500 |
0.25% |
2500 |
2.58 |
2.58E+00 |
1.94E+10 |
7.75E+09 |
625-675 |
60 |
40-600 |
40 |
68 |
600 |
1.7 |
50 |
520 |
20 |
1.89E+12 |
2500 |
0.25% |
2500 |
3.15 |
3.15E+00 |
1.59E+10 |
6.35E+09 |
575-625 |
60 |
40-550 |
40 |
60 |
550 |
1.5 |
50 |
520 |
20 |
2.21E+12 |
2500 |
0.25% |
2500 |
3.69 |
3.69E+00 |
1.36E+10 |
5.42E+09 |
525-575 |
60 |
50-1064 |
50 |
245 |
1064 |
4.9 |
50 |
530 |
25 |
2.89E+11 |
2500 |
0.25% |
2500 |
0.48 |
4.82E-01 |
1.04E+11 |
5.18E+10 |
980-1232 |
150 |
50-808 |
50 |
145 |
808 |
2.9 |
50 |
530 |
25 |
5.15E+11 |
2500 |
0.25% |
2500 |
0.86 |
8.58E-01 |
5.83E+10 |
2.91E+10 |
750-850 |
150 |
50-700 |
50 |
110 |
700 |
2.2 |
50 |
530 |
25 |
7.08E+11 |
2500 |
0.25% |
2500 |
1.18 |
1.18E+00 |
4.24E+10 |
2.12E+10 |
650-750 |
150 |
50-600 |
50 |
100 |
600 |
2 |
50 |
530 |
25 |
7.93E+11 |
2500 |
0.25% |
2500 |
1.32 |
1.32E+00 |
3.78E+10 |
1.89E+10 |
550-650 |
150 |
70-750 |
70 |
120 |
750 |
1.7 |
50 |
530 |
25 |
3.49E+11 |
2500 |
0.25% |
2500 |
0.58 |
5.81E-01 |
8.60E+10 |
4.30E+10 |
700-800 |
150 |
70-650 |
70 |
105 |
650 |
1.5 |
50 |
530 |
25 |
4.13E+11 |
2500 |
0.25% |
2500 |
0.69 |
6.88E-01 |
7.27E+10 |
3.63E+10 |
600-700 |
150 |
70-550 |
70 |
91 |
550 |
1.3 |
50 |
530 |
25 |
4.98E+11 |
2500 |
0.25% |
2500 |
0.83 |
8.30E-01 |
6.02E+10 |
3.01E+10 |
500-600 |
150 |
Optical Density >= 50, volume = 1mL
|
All specs typical. May vary batch to batch. Exact values are measured for each batch
|
Solution default is 18MEG DI water
|
Residual Chemicals < 0.1%
|
Functionalized gold nanoparticle with Nanopartz™ bonded polymer. Thickness of polymer is 1-2nm.
Composition
These nanoparticles are shipped in 18MEG DI water, ethanol, or our proprietary alcohol. Citrate imparts a solution concentration of 2-4mM whereas the other polymers exhibit no measurable residual reactants.
Custom Formulation
Please contact us.
Quantity
This product is available in 1mL volumes and larger.
Introductory Kits
Please contact us.
Delivery
Standard sizes are in stock. Special order sizes are shipped in two weeks or less. All domestic shipments are sent Fed Ex Standard Overnight delivery, international Fed Ex Priority 2 day. No shipments on Fridays except for dried particles. Saturday shipping available for extra charge.
Functionalization
This product comes with a number of different covalent options.
Shelf Life/Storage Temperature
This product is guaranteed for six months and should be stored at 4 °C after opening. Care must be taken to only use sterile glassware when working with this product.
Toxicity
This product is known to be noncytotoxic. This product has been sterilized and is biological free.
Sterilization
This product is sterilized.
For post sterilization testing, please choose Sterilization Certification.
For endotoxin purification, choose Endotoxin Purified.
Certifications
Every order comes with a Certification of Analysis that includes the following information. We use calibration traceable:
UV-VIS (Agilent 8453) for extinction and concentration measurements
NIR (Cary 500) for NIR extinction and concentration measurements
DLS (Malvern Nano ZS) for zeta potential measurement
ICP-MS (Varian 820-MS) for gold mass measurements
TEM (Phillips CM-100 100KV) for sizing
How do I get a close packed monolayer?
Use our Nanopartz Surface Polymer or Covalent Surface Polymer and add them dropwise at the concentrations provided. The monodispersity of the product will lend itself to close pack mono surfaces.
Why don't you offer CTAB coated gold nanoparticles for this product line?
This is because the CTAB will dry to form crystals on the surface that will optically obscure the gold nanoparticles.
How do I control the density of the particles on the surface?
The customer can control the surface nanoparticle density through dilution of the provided source.
How much thickness does your proprietary ligand add?
Anywhere from 1-2nm.
How do I determine the concentration of the product?
Simply divide the number of nanoparticles (nps) found on the included COA by the amount of solution you add.
Why do you sell your rods as OD-mLs and what does this mean?
This is because unlike spherical gold nanoparticles, the conversion from OD to mg is not linear with nanorod diameter. Consequently, for the same OD, the weight of the nanorods increases with diameter. 50 OD-mLs means that if you resuspend the material in 1mL of solvent, you will have an absorption of OD50 through a 1mL optical path.
Can I resuspend in water?
You can resuspend in the solvent/solution it is delivered in.
What is the shelf life if I never open the package and keep refrigerated?
Many years.
Should I store in the refrigerator?
Yes.
How do you size your gold nanoparticles? Does the size include the capping agent?
We use three methods to specify our gold nanoparticles; TEM, UV VIS, and DLS. Each has its own advantages and disadvantages, and we use a weighted system to take advantage of each methods strengths. In the end, we place the strongest weight to the TEM method, particularly since we use samples sizes greater than 50 particles for each lot.
Do you really provide a TEM for my specific lot?
Yes, and not just for 5-10 particles, rather 50-100 are standard.
Why are your small gold nanoparticles colored? I have seen 2nm particles on other website that look as clear as water.
All gold nanoparticles absorb and/or scatter. If you can't see them, then they probably aren't there.
What is OD?
Optical Density (OD) is measured by UV-VIS. An Optical Density OD=1 corresponds to a transmission of 10% through a 1cm cuvette. Optical Density is a nice unit to use since Optical Densities correlate linearly to concentration. So an Optical Density of 1.2 is equal to 1.2 times the concentration of a gold nanoparticle solution that has an Optical Density of 1. We use OD and concentration interchangingly as it is easier to refer to a solution of OD=1 rather than 2.35e12 nanoparticles. For all spheres up to 200nm, OD=1 does refer to 0.05mg/mL.
What is PDI?
PDI refers to polydispersity index and is equal to the standard deviation of the particle sizes divided by the average size.
"We have looked at many different gold nanoparticles samples from Nanopartz including spheres, rods, and microrods using single particle spectroscopy techniques and are extremely happy with the quality of the samples and the service provided by Nanopartz."
Stephan Link, PhD
Assistant Professor of Chemistry
Rice University
Enhancing sensitivity of surface plasmon resonance biosensors by functionalized gold nanoparticles: size matters
covalently functionalized with neutravidin via a 2 nm polymer bridge were
purchased from Nanopartz Inc., USA. The diameters of the gold ...
Physisorption of functionalized gold nanoparticles on AlGaN/GaN high electron mobility transistors for sensing applications
functionalized with alkanethiols ... linkers to the gate area of AlGaN/GaN HEMTs include patterning
gold at the ... Also, the effectiveness of the UV functionalization method is offset by the limited ...
[HTML] Enhanced intracellular translocation and biodistribution of gold nanoparticles functionalized with a cell-penetrating peptide (VG-21) from vesicular stomatitis …
fluorescence microscopy, FITC conjugated VG-21 peptide was used for functionalization. ... GNPs
functionalized with FITC-conjugated VG-21 were used to study internalization of the ...
Wide‐field hyperspectral 3D imaging of functionalized gold nanoparticles targeting cancer cells by reflected light microscopy
of experimental spectral curves for single 100 nm functionalized AuNPs are presented in ... shifted
for about 6 nm that could be explained by AuNPs functionalization and attachment to ...
Size dependence of Au NP-enhanced surface plasmon resonance based on differential phase measurement
Accurate. ... The system was left for a period of 20 min and then rinsed by DI water to confirm the
functionalization. ... A review on functionalized gold nanoparticles for biosensing applications. ...
Mechanistic heteroaggregation of gold nanoparticles in a wide range of solution chemistry
nanospheres (AuNSs) in ... with 10 nm primary particle diameter were procured from Nanopartz
Inc. ... PA-SWNT Preparation To perform surface functionalization with pluronic acid (PA) F127 ...
Biofunctionalized gold nanoparticles for SPR-biosensor-based detection of CEA in blood plasma
USA, at ... During the functionalization processes described above, the flow rate and the temperature
were set ... BSA was flowed along the surface of an SPR chip functionalized with Ab1 ...
Multiplexed colorimetric detection of Kaposi's sarcoma associated herpesvirus and Bartonella DNA using gold and silver nanoparticles
of 15 and 20 nm, respectively, were functionalized using thiol based chemistry using methods
described by others. ... Gold nanoparticles were purchased from Nanopartz (Loveland, CO ...
[HTML] Plasmonic enhancement of dye sensitized solar cells via a tailored size-distribution of chemically functionalized gold nanoparticles
wt 1.75 ... nm), with optically dispersing TiO 2 particles (Ø ∼190 nm) and functionalized with AuNPs ...
TiO 2 functionalisation with AuNPs) and Figure 4 (after the functionalization) it can ...
The manufacturing method for these nanoparticles are based on our own proprietary methods. To create monolayers, gold nanoparticles with monodisperse sizes and shapes are required to close pack. The polymer used are optimal to reduce potential agglomeration on the surfaces, resulting in an even distribution of particles on the surface.
| Nanopartz™ Surface Gold Nanoparticles | Gold Nanoparticles from others | |
| Even Distribution | Yes | No |
| Monodisperse | Yes | No |
| Quick Drying | Yes | No |
| Non agglomeration | Yes | No |
- Covalent bonds insure specificity, stability, long shelf life
- Ability to interrogate single particles on surfaces
- No residual chemicals (except for citrate capped)
- Polymers are optically transparent and will not affect the SPR in any measurable amount
- Stable
- Well Characterized
- Customer can control density
- Customer can select gold nanoparticle type, size and/or SPR
- Loading of all ligands is optimized
Example part number is PCS11-10-CIT-50-0.25 where:
PCS11 - Product family number for Surface Coating Gold Nanoparticles. For Gold Nanorods, its PCS12 and so forth. For other nanoparticles and materials, contact us.
10 - Sphere diameter in nanometers. Other choices are 1.8 to 1500
CIT - Citrate ligand. Other choices are Nanopartz Surface Polymer (NSP) and Nanopartz Covalent Surface Polymer (NCSP)
50 - OD-mLs, which corresponds to 2.5mg for spheres
0.25 - Volume (mL)
Ordering by scrolling down and selecting the options from the selection below.