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Nanopartz Gold Nanorodz

Nanopartz™Gold Nanorodz™ are gold nanorods manufactured using patented, patent pending and proprietary methods that result in exact sizes, highly monodisperse sizes and shapes, long shelf lives, along with significantly improved reactivity. Diameters are 10, 25, 40, and 50nm. Peak SPRs range from 550nm to 2100nm. Every batch is completely characterized including size and concentration. The solutions have been purified of any reactive chemicals and CTAB is kept to less than 100mM. A Certificate of Analysis (COA) is provided for every order exhibiting TEM and UV-VIS images and data, as well as DLS data. Every product is in stock (99%) and is shipped same day. This product comes in two concentrations, regular OD=1, and highly concentrated OD=100. Our nanorods come with a number of different capping agents including Hexadecyltrimethylammonium bromide (CTAB), citrate, branched polyethyleneimine (PEI), Polyacrylic acid (PAA), Polyallylamine (PAH), Polyvinylpyrrolidone (PVP), and our Nanopartz charged polymers that change the overall zeta potential to either +35mV, neutral, or -35mV. Nanopartz Gold Nanorodz are the industry standard, and have appeared in countless publications.

Part #A12 Nanopartz Gold Nanorodz OD=1

 

Part #

(click for COA)

Diam (nm)
Length (nm)
Peak SPR Wave (nm)

COA

.pdf

Aspect Ratio
OD SPR (AU)
Peak LSPR Wave (nm)
OD LSPR (AU)
Nanorods /mL
Wt. conc (ug/ml)
Molarity (nM)
SPR Molar Ext. (M-1cm-1)
LSPR Molar Ext. (M-1cm-1)
Peak SPR (nm)
SPR Linewidth 80% (nm)
A12-10-2100
10
175
2100
COA
17.5
1
510
0.25
1.35E+11
35
0.22
4.46E+09
1.11E+09
1900-2300
300
A12-10-1400
10
102
1400
COA
10.2
1
510
0.25
2.34E+11
35
0.39
2.57E+09
6.42E+08
1300-1500
150
A12-10-1200
10
81
1200
COA
8.1
1
510
0.25
2.96E+11
35
0.49
2.03E+09
5.07E+08
1132-1300
150
A12-10-1064
10
67
1064
COA
6.7
1
510
0.25
3.62E+11
35
0.6
1.66E+09
4.15E+08
1022-1132
150
A12-10-980
10
59
980
COA
5.9
1
510
0.25
4.19E+11
35
0.7
1.43E+09
3.58E+08
965-1022
150
A12-10-950
10
55
950
COA
5.5
1
510
0.25
4.44E+11
35
0.74
1.35E+09
3.38E+08
925-965
150
A12-10-900
10
50
900
COA
5
1
510
0.25
4.93E+11
35
0.82
1.22E+09
3.04E+08
875-925
150
A12-10-850
10
45
850
COA
4.5
1
510
0.25
5.55E+11
35
0.93
1.08E+09
2.70E+08
829-875
100
A12-10-808
10
41
808
COA
4.1
1
510
0.25
6.20E+11
35
1.03
9.68E+08
2.42E+08
794-829
75
A12-10-780
10
38
780
COA
3.8
1
510
0.25
6.73E+11
35
1.12
8.92E+08
2.23E+08
765-794
65
A12-10-750
10
35
750
COA
3.5
1
510
0.25
7.40E+11
35
1.23
8.11E+08
2.03E+08
725-765
50
A12-10-700
10
29
700
COA
2.9
1
510
0.25
8.88E+11
35
1.48
6.76E+08
1.69E+08
675-725
40
A12-10-650
10
24
650
COA
2.4
1
510
0.25
1.11E+12
35
1.85
5.41E+08
1.35E+08
625-675
40
A12-10-600
10
19
600
COA
1.9
1
510
0.25
1.48E+12
35
2.47
4.05E+08
1.01E+08
575-625
40
 
 
A12-25-1400
25
245
1400
COA
9.8
1
514
0.3
2.23E+10
50
0.04
2.69E+10
8.06E+09
1232-1500
150
A12-25-1064
25
137
1064
COA
5.5
1
514
0.3
4.11E+10
50
0.07
1.46E+10
4.38E+09
1022-1232
150
A12-25-980
25
119
980
COA
4.8
1
514
0.3
4.78E+10
50
0.08
1.26E+10
3.77E+09
965-1022
150
A12-25-950
25
102
950
COA
4.1
1
514
0.3
5.64E+10
50
0.09
1.06E+10
3.19E+09
925-965
150
A12-25-900
25
96
900
COA
3.8
1
514
0.3
6.03E+10
50
0.1
9.95E+09
2.99E+09
875-925
150
A12-25-850
25
93
850
COA
3.7
1
514
0.3
6.24E+10
50
0.1
9.61E+09
2.88E+09
829-875
150
A12-25-808
25
90
808
COA
3.6
1
514
0.3
6.47E+10
50
0.11
9.27E+09
2.78E+09
794-829
150
A12-25-780
25
87
780
COA
3.5
1
514
0.3
6.72E+10
50
0.11
8.93E+09
2.68E+09
765-794
150
A12-25-750
25
85
750
COA
3.4
1
514
0.3
6.89E+10
50
0.11
8.70E+09
2.61E+09
725-765
65
A12-25-700
25
75
700
COA
3
1
514
0.3
7.93E+10
50
0.13
7.57E+09
2.27E+09
675-725
60
A12-25-650
25
71
650
COA
2.8
1
514
0.3
8.43E+10
50
0.14
7.11E+09
2.13E+09
625-675
60
A12-25-600
25
57
600
COA
2.3
1
514
0.3
1.09E+11
50
0.18
5.52E+09
1.66E+09
575-625
60
A12-25-550
25
34
550
COA
1.4
1
514
0.3
2.03E+11
50
0.34
2.96E+09
8.87E+08
525-575
60
 
 
A12-40-850
40
148
850
COA
3.7
1
520
0.4
1.53E+10
50
0.03
3.91E+10
1.57E+10
829-875
60
A12-40-808
40
134
808
COA
3.4
1
520
0.4
1.71E+10
50
0.03
3.51E+10
1.40E+10
794-829
60
A12-40-780
40
124
780
COA
3.1
1
520
0.4
1.87E+10
50
0.03
3.22E+10
1.29E+10
765-794
60
A12-40-750
40
112
750
COA
2.8
1
520
0.4
2.09E+10
50
0.03
2.87E+10
1.15E+10
725-765
60
A12-40-700
40
92
700
COA
2.3
1
520
0.4
2.62E+10
50
0.04
2.29E+10
9.14E+09
675-725
60
A12-40-650
40
80
650
COA
2
1
520
0.4
3.10E+10
50
0.05
1.94E+10
7.75E+09
625-675
60
A12-40-600
40
68
600
COA
1.7
1
520
0.4
3.78E+10
50
0.06
1.59E+10
6.35E+09
575-625
60
A12-40-550
40
60
550
COA
1.5
1
520
0.4
4.42E+10
50
0.07
1.36E+10
5.42E+09
525-575
60
 
 
A12-50-800
50
145
800
COA
2.9
1
530
0.5
1.03E+10
50
0.02
5.83E+10
2.91E+10
750-825
60
A12-50-700
50
110
700
COA
2.2
1
530
0.5
1.42E+10
50
0.02
4.24E+10
2.12E+10
650-750
60
A12-50-600
50
100
600
COA
2
1
530
0.5
1.59E+10
50
0.03
3.78E+10
1.89E+10
550-650
60

 

 

Part Numbers:

Example part number is A12-10-700-CIT-DIH-25 where:

A12 - Product family number for Nanopartz Gold Nanorods

10 - Nanorod diameter in nanometers. Other choices are 25nm, 40nm, and 50nm

700 - Peak SPR absorbance wavelength. Other choices are from 550 to 2100nm depending on the diameter chosen

CIT - Capping ligand, in this case Citrate. Other choices are CTAB, PAA, PVP, PEI, PAH, PSS, negative charged polymer, neutral charged polymer, positive charged polymer

DIH - Buffer, in this case 18MEG DI water. Other choices, depending on the capping ligand are PBS, MES, Sodium Borate, TRIS

25 - Volume (mL). Other choices are 100mL, 500mL, 1L, 2L.

Certified Sterilized - Though the product come sterilized, this option includes testing and certification.

Endotoxin Purified - The product is endotoxin purified and certified.

Home » A- Unfunctionalized Nanoparticles » A12 Gold Nanorods
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Gold Nanorods
Gold Nanorods
Part# A12-(Diam-SPR)-(Ligand)-(Buffer)-(Volume)-(Certified Sterilized)-(Endotoxin Purified)
Sterilization
Certified Sterilized (+$150.00)
Endotoxin
Endotoxin Purified and Certified (+$250.00)
Price: $150.00
Gold Nanorods 1mL KIT
Gold Nanorods 1mL KIT
Part# A12-KIT-(DIAM-SPR)-CTAB-1mL-DI Water; OD=1, Minimum Qty. 4, 1mL ea. in 18MEG DI Water; Enter Qty. for each size. Only for online orders.
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Price: $0.00
Gold Nanorods 25mL KIT
Gold Nanorods 25mL KIT
Part# A12-KIT-(DIAM-SPR)-CTAB-25mL-DI Water; OD=1, Minimum Qty. 4, 25mL ea. in 18MEG DI Water; Enter Qty. for each size. Only for online orders.
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Price: $0.00
Concentrated Gold Nanorods
Concentrated Gold Nanorods
Part# AC12-(Diam-SPR)-(Volume)-(Ligand)-(Buffer); OD=100, The 1mL volume is concentrated from 100mL of OD=1 solution.
D2O
D2O (+$40.00)
Sterilization
Certified Sterilized (+$150.00)
Endotoxin
Endotoxin Purified and Certified (+$250.00)
Price: $600.00
Part #
Diam (nm)
Length (nm)
Peak SPR Wave (nm)
Aspect Ratio
OD SPR (AU)
Peak LSPR Wave (nm)
OD LSPR (AU)
Nanorod Vol (nm3)
Nanorods /mL
Wt. conc (ug/ml)
Wt. %
PPM
Molarity (nM)
SPR Molar Ext. (M-1cm-1)
LSPR Molar Ext. (M-1cm-1)
Peak SPR (nm)
SPR Linewidth 80% (nm)
A12-10-2100
10
175
2100
17.5
1
510
0.25
1.35E+04
1.35E+11
35
0.00%
35
0.22
4.46E+09
1.11E+09
1900-2300
300
A12-10-1400
10
102
1400
10.2
1
510
0.25
7.77E+03
2.34E+11
35
0.00%
35
0.39
2.57E+09
6.42E+08
1300-1500
150
A12-10-1200
10
81
1200
8.1
1
510
0.25
6.13E+03
2.96E+11
35
0.00%
35
0.49
2.03E+09
5.07E+08
1132-1300
150
A12-10-1064
10
67
1064
6.7
1
510
0.25
5.02E+03
3.62E+11
35
0.00%
35
0.6
1.66E+09
4.15E+08
1022-1132
150
A12-10-980
10
59
980
5.9
1
510
0.25
4.33E+03
4.19E+11
35
0.00%
35
0.7
1.43E+09
3.58E+08
965-1022
150
A12-10-950
10
55
950
5.5
1
510
0.25
4.09E+03
4.44E+11
35
0.00%
35
0.74
1.35E+09
3.38E+08
925-965
150
A12-10-900
10
50
900
5
1
510
0.25
3.68E+03
4.93E+11
35
0.00%
35
0.82
1.22E+09
3.04E+08
875-925
150
A12-10-850
10
45
850
4.5
1
510
0.25
3.27E+03
5.55E+11
35
0.00%
35
0.93
1.08E+09
2.70E+08
829-875
100
A12-10-808
10
41
808
4.1
1
510
0.25
2.93E+03
6.20E+11
35
0.00%
35
1.03
9.68E+08
2.42E+08
794-829
75
A12-10-780
10
38
780
3.8
1
510
0.25
2.70E+03
6.73E+11
35
0.00%
35
1.12
8.92E+08
2.23E+08
765-794
65
A12-10-750
10
35
750
3.5
1
510
0.25
2.45E+03
7.40E+11
35
0.00%
35
1.23
8.11E+08
2.03E+08
725-765
50
A12-10-700
10
29
700
2.9
1
510
0.25
2.04E+03
8.88E+11
35
0.00%
35
1.48
6.76E+08
1.69E+08
675-725
40
A12-10-650
10
24
650
2.4
1
510
0.25
1.64E+03
1.11E+12
35
0.00%
35
1.85
5.41E+08
1.35E+08
625-675
40
A12-10-600
10
19
600
1.9
1
510
0.25
1.23E+03
1.48E+12
35
0.00%
35
2.47
4.05E+08
1.01E+08
575-625
40
 
A12-25-1400
25
245
1400
9.8
1
514
0.3
1.16E+05
2.23E+10
50
0.01%
50
0.04
2.69E+10
8.06E+09
1232-1500
150
A12-25-1064
25
137
1064
5.5
1
514
0.3
6.31E+04
4.11E+10
50
0.01%
50
0.07
1.46E+10
4.38E+09
1022-1232
150
A12-25-980
25
119
980
4.8
1
514
0.3
5.43E+04
4.78E+10
50
0.01%
50
0.08
1.26E+10
3.77E+09
965-1022
150
A12-25-950
25
102
950
4.1
1
514
0.3
4.60E+04
5.64E+10
50
0.01%
50
0.09
1.06E+10
3.19E+09
925-965
150
A12-25-900
25
96
900
3.8
1
514
0.3
4.30E+04
6.03E+10
50
0.01%
50
0.1
9.95E+09
2.99E+09
875-925
150
A12-25-850
25
93
850
3.7
1
514
0.3
4.15E+04
6.24E+10
50
0.01%
50
0.1
9.61E+09
2.88E+09
829-875
150
A12-25-808
25
90
808
3.6
1
514
0.3
4.01E+04
6.47E+10
50
0.01%
50
0.11
9.27E+09
2.78E+09
794-829
150
A12-25-780
25
87
780
3.5
1
514
0.3
3.86E+04
6.72E+10
50
0.01%
50
0.11
8.93E+09
2.68E+09
765-794
150
A12-25-750
25
85
750
3.4
1
514
0.3
3.76E+04
6.89E+10
50
0.01%
50
0.11
8.70E+09
2.61E+09
725-765
65
A12-25-700
25
75
700
3
1
514
0.3
3.27E+04
7.93E+10
50
0.01%
50
0.13
7.57E+09
2.27E+09
675-725
60
A12-25-650
25
71
650
2.8
1
514
0.3
3.07E+04
8.43E+10
50
0.01%
50
0.14
7.11E+09
2.13E+09
625-675
60
A12-25-600
25
57
600
2.3
1
514
0.3
2.39E+04
1.09E+11
50
0.01%
50
0.18
5.52E+09
1.66E+09
575-625
60
A12-25-550
25
34
550
1.4
1
514
0.3
1.28E+04
2.03E+11
50
0.01%
50
0.34
2.96E+09
8.87E+08
525-575
60
 
A12-40-850
40
148
850
3.7
1
520
0.4
1.69E+05
1.53E+10
50
0.01%
50
0.03
3.91E+10
1.57E+10
829-875
60
A12-40-808
40
134
808
3.4
1
520
0.4
1.52E+05
1.71E+10
50
0.01%
50
0.03
3.51E+10
1.40E+10
794-829
60
A12-40-780
40
124
780
3.1
1
520
0.4
1.39E+05
1.87E+10
50
0.01%
50
0.03
3.22E+10
1.29E+10
765-794
60
A12-40-750
40
112
750
2.8
1
520
0.4
1.24E+05
2.09E+10
50
0.01%
50
0.03
2.87E+10
1.15E+10
725-765
60
A12-40-700
40
92
700
2.3
1
520
0.4
9.88E+04
2.62E+10
50
0.01%
50
0.04
2.29E+10
9.14E+09
675-725
60
A12-40-650
40
80
650
2
1
520
0.4
8.37E+04
3.10E+10
50
0.01%
50
0.05
1.94E+10
7.75E+09
625-675
60
A12-40-600
40
68
600
1.7
1
520
0.4
6.87E+04
3.78E+10
50
0.01%
50
0.06
1.59E+10
6.35E+09
575-625
60
A12-40-550
40
60
550
1.5
1
520
0.4
5.86E+04
4.42E+10
50
0.01%
50
0.07
1.36E+10
5.42E+09
525-575
60
 
A12-50-800
50
145
800
2.9
1
530
0.5
2.52E+05
1.03E+10
50
0.01%
50
0.02
5.83E+10
2.91E+10
750-825
60
A12-50-700
50
110
700
2.2
1
530
0.5
1.83E+05
1.42E+10
50
0.01%
50
0.02
4.24E+10
2.12E+10
650-750
60
A12-50-600
50
100
600
2
1
530
0.5
1.64E+05
1.59E+10
50
0.01%
50
0.03
3.78E+10
1.89E+10
550-650
60

 

SPR = Longitudinal SPR peak
LSPR = Lower SPR peak
Shape monodispersity (% rods) > 95%
Size variation +/-10% (both dimensions)

 

Part #
Diameter (nm)
Length (nm)
Peak SPR Wave (nm)
Aspect Ratio
OD SPR (AU)
Peak LSPR Wave (nm)
OD LSPR (AU)
Nanorod Vol (nm3)
Nanorods /mL
Wt. conc (mg/ml)
Wt. %
PPM
Molarity (nM)
SPR Molar Ext. (M-1cm-1)
LSPR Molar Ext. (M-1cm-1)
Peak SPR accuracy (nm)
SPR Linewidth 80% (nm)
AC12-10-2100
10
175
2100
17.5
100
510
25
1.35E+04
1.35E+13
3.5
0.35%
3500
22.42
4.46E+09
1.11E+09
1900-2300
300
AC12-10-1400
10
102
1400
10.2
100
510
25
7.77E+03
2.34E+13
3.5
0.35%
3500
38.95
2.57E+09
6.42E+08
1300-1500
150
AC12-10-1200
10
81
1200
8.1
100
510
25
6.13E+03
2.96E+13
3.5
0.35%
3500
49.33
2.03E+09
5.07E+08
1132-1300
150
AC12-10-1064
10
67
1064
6.7
100
510
25
5.02E+03
3.62E+13
3.5
0.35%
3500
60.26
1.66E+09
4.15E+08
1022-1132
150
AC12-10-980
10
59
980
5.9
100
510
25
4.33E+03
4.19E+13
3.5
0.35%
3500
69.81
1.43E+09
3.58E+08
965-1022
150
AC12-10-950
10
55
950
5.5
100
510
25
4.09E+03
4.44E+13
3.5
0.35%
3500
74
1.35E+09
3.38E+08
925-965
150
AC12-10-900
10
50
900
5
100
510
25
3.68E+03
4.93E+13
3.5
0.35%
3500
82.22
1.22E+09
3.04E+08
875-925
150
AC12-10-850
10
45
850
4.5
100
510
25
3.27E+03
5.55E+13
3.5
0.35%
3500
92.5
1.08E+09
2.70E+08
829-875
100
AC12-10-808
10
41
808
4.1
100
510
25
2.93E+03
6.20E+13
3.5
0.35%
3500
103.35
9.68E+08
2.42E+08
794-829
75
AC12-10-780
10
38
780
3.8
100
510
25
2.70E+03
6.73E+13
3.5
0.35%
3500
112.12
8.92E+08
2.23E+08
765-794
65
AC12-10-750
10
35
750
3.5
100
510
25
2.45E+03
7.40E+13
3.5
0.35%
3500
123.34
8.11E+08
2.03E+08
725-765
50
AC12-10-700
10
29
700
2.9
100
510
25
2.04E+03
8.88E+13
3.5
0.35%
3500
148
6.76E+08
1.69E+08
675-725
40
AC12-10-650
10
24
650
2.4
100
510
25
1.64E+03
1.11E+14
3.5
0.35%
3500
185
5.41E+08
1.35E+08
625-675
40
AC12-10-600
10
19
600
1.9
100
510
25
1.23E+03
1.48E+14
3.5
0.35%
3500
246.67
4.05E+08
1.01E+08
575-625
40
 
AC12-25-1400
25
245
1400
9.8
100
514
30
1.16E+05
2.23E+12
5
0.50%
5000
3.72
2.69E+10
8.06E+09
1232-1500
150
AC12-25-1064
25
137
1064
5.5
100
514
30
6.31E+04
4.11E+12
5
0.50%
5000
6.85
1.46E+10
4.38E+09
1022-1232
150
AC12-25-980
25
119
980
4.8
100
514
30
5.43E+04
4.78E+12
5
0.50%
5000
7.96
1.26E+10
3.77E+09
965-1022
150
AC12-25-950
25
102
950
4.1
100
514
30
4.60E+04
5.64E+12
5
0.50%
5000
9.41
1.06E+10
3.19E+09
925-965
150
AC12-25-900
25
96
900
3.8
100
514
30
4.30E+04
6.03E+12
5
0.50%
5000
10.05
9.95E+09
2.99E+09
875-925
150
AC12-25-850
25
93
850
3.7
100
514
30
4.15E+04
6.24E+12
5
0.50%
5000
10.41
9.61E+09
2.88E+09
829-875
150
AC12-25-808
25
90
808
3.6
100
514
30
4.01E+04
6.47E+12
5
0.50%
5000
10.79
9.27E+09
2.78E+09
794-829
150
AC12-25-780
25
87
780
3.5
100
514
30
3.86E+04
6.72E+12
5
0.50%
5000
11.2
8.93E+09
2.68E+09
765-794
150
AC12-25-750
25
85
750
3.4
100
514
30
3.76E+04
6.89E+12
5
0.50%
5000
11.49
8.70E+09
2.61E+09
725-765
65
AC12-25-700
25
75
700
3
100
514
30
3.27E+04
7.93E+12
5
0.50%
5000
13.21
7.57E+09
2.27E+09
675-725
60
AC12-25-650
25
71
650
2.8
100
514
30
3.07E+04
8.43E+12
5
0.50%
5000
14.06
7.11E+09
2.13E+09
625-675
60
AC12-25-600
25
57
600
2.3
100
514
30
2.39E+04
1.09E+13
5
0.50%
5000
18.1
5.52E+09
1.66E+09
575-625
60
AC12-25-550
25
34
550
1.4
100
514
30
1.28E+04
2.03E+13
5
0.50%
5000
33.83
2.96E+09
8.87E+08
525-575
60
 
AC12-40-850
40
148
850
3.7
100
520
40
1.69E+05
1.53E+12
5
0.50%
5000
2.56
3.91E+10
1.57E+10
829-875
60
AC12-40-808
40
134
808
3.4
100
520
40
1.52E+05
1.71E+12
5
0.50%
5000
2.85
3.51E+10
1.40E+10
794-829
60
AC12-40-780
40
124
780
3.1
100
520
40
1.39E+05
1.87E+12
5
0.50%
5000
3.11
3.22E+10
1.29E+10
765-794
60
AC12-40-750
40
112
750
2.8
100
520
40
1.24E+05
2.09E+12
5
0.50%
5000
3.49
2.87E+10
1.15E+10
725-765
60
AC12-40-700
40
92
700
2.3
100
520
40
9.88E+04
2.62E+12
5
0.50%
5000
4.37
2.29E+10
9.14E+09
675-725
60
AC12-40-650
40
80
650
2
100
520
40
8.37E+04
3.10E+12
5
0.50%
5000
5.16
1.94E+10
7.75E+09
625-675
60
AC12-40-600
40
68
600
1.7
100
520
40
6.87E+04
3.78E+12
5
0.50%
5000
6.3
1.59E+10
6.35E+09
575-625
60
AC12-40-550
40
60
550
1.5
100
520
40
5.86E+04
4.42E+12
5
0.50%
5000
7.37
1.36E+10
5.42E+09
525-575
60
 
AC12-50-800
50
145
800
2.9
100
530
50
2.52E+05
1.03E+12
5
0.50%
5000
1.72
5.83E+10
2.91E+10
750-825
60
AC12-50-700
50
110
700
2.2
100
530
50
1.83E+05
1.42E+12
5
0.50%
5000
2.36
4.24E+10
2.12E+10
650-750
60
AC12-50-600
50
100
600
2
100
530
50
1.64E+05
1.59E+12
5
0.50%
5000
2.64
3.78E+10
1.89E+10
550-650
60

 

SPR = Longitudinal SPR peak
LSPR = Lower SPR peak
Shape monodispersity (% rods) > 95%
Size variation +/-10% (both dimensions)

 

 

 

 
CTAB
Neutral Polymer
Positive Polymer
Negative Polymer
In batch size variation (10nm)
< 10% CV
< 10% CV
< 10% CV
< 10% CV
In batch size variation (25nm)
< 20% CV
< 20% CV
< 20% CV
< 20% CV
In batch size variation (40nm)
< 25% CV
< 25% CV
< 25% CV
< 25% CV
In batch size variation (50nm)
< 25% CV
< 25% CV
< 25% CV
< 25% CV
Shape monodispersity
>95% nanorods
>95% nanorods
>95% nanorods
>95% nanorods
Surface charge (zeta)
40mV
~0 mV
35mV
-35 mV
pH
5
7
7
7
Residual Chemicals
5mM CTAB
Trace
Trace
Trace
Carboxylic Acid
n/a
n/a
n/a
n/a
CTAB
5mM
n/a
n/a
n/a
Added Diameter
Included
1.5nm
1.5nm
1.5nm
Bond
Adsorbed
Ionically adsorbed
Ionically adsorbed
Ionically adsorbed

 

CTABCTAB Structure

CTAB

Hexadecyltrimethylammonium bromide (CTAB) (C16H33)N(CH3)3Br, cetyltrimethylammonium bromide. As any surfactant, it forms micelles in aqueous solutions. At 303 K (30 °C) it forms micelles with aggregation number 75-120 (depending on method of determination, usually average ~95) and degree of ionization α (fractional charge) 0.2–0.1 (from low to high concentration). The standard constant of Br- counterion binding to the micelle at 303 K (30 °C) is K° ≈ 400.

 

citrate capped gold nanoparticle

Citrate Stabilized

 

PEI

Branched PEI

Polyethylenimine (PEI) or polyaziridine is a polymer with repeating unit composed of the amine group and two carbon aliphatic CH2CH2 spacer. Linear polyethyleneimines contain all secondary amines, in contrast to branched PEIs which contain primary, secondary and tertiary amino groups. 

 

PAA

Polyacrylic acid (PAA)

 

PAH 

Polyallylamine (PAH)  is a cationic polyeletrolyte.

 

PVP

Polyvinylpyrrolidone (PVP)

 

 

Composition

These bare gold nanorods are shipped in  DI water with trace CTAB (or polymer encased CTAB) and no measurable residual chemicals. This guarantees little to no flocculation at 4°C storage and no wavelength shifting over time.  For our polymer capped CTAB nanorods, the product has a zeta charge closer to neutral, or negative zeta potential.

Custom Formulation

Diameters 10 nm, 25 nm, 40nm, and 50nm with resonances from 550nm to 2100nm are standard.  Other sizes are special order.  Please contact us.

Quantity

This product is available in 5mL and larger. For orders larger than 100mL, or for orders amounting over 10L per annum, please contact sales for quantity pricing.

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.

Conjugations

This product comes standard with CTAB. Options include PEI, PAH, PAA, Citrate, and Nanopartz non covalent charged polymers.

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 cytotoxic.

Certifications

This product is manufactured using our audited ISO 9000 quality control system. Every order comes with a Certificate of Analysis. We use NIST 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

 

  Nanopartz Nanorod Technology Other Technologies
Monodispersity High Low
Linewidths Narrow Broad
Wavelength shifting during storage None Large
High CTAB Concentrations (CTAB cloud) None Yes
SPR Wavelengths 550nm to 2100nm Yes 600-1000nm
Large Axial Diameters (50nm NIR nanorods) Yes No

 

  • Diameters from 10nm to 50nm.
  • NIR SPRs for diameters greater than 10nm.
  • Wavelength accuracy better than 10 nm in many cases.
  • Size monodispersity better than 10% CV
  • Greater than 95% rods, less than 5% other shapes
  • Available in aspect ratios from 1.4 to 17.5, resulting in extinctions from 550 to 1400 nm.
  • CTAB concentration is reduced to < 10mM without adverse effects to the nanorods.
  • Negatively charged coatings also available.
  • Extremely stable. Shelf life is greater than one year.
  • High anisotropy.
  • High non-linear coefficients. Extremely efficient for frequency conversion.
  • Near IR absorptions four orders of magnitude larger than quantum dots in the visible. Photothermal cross sections that leads to highly efficient optical to heat conversion.
  • Monodisperse shapes and sizes in production volumes satisfies high volume applications.
  • Tunable scattering/absorptions from the VIS to NIR create colored gold good for multi-label diagnostics and imaging.
  • NIR absorptions are advantageous for in-vivo applications at the peak transmission window of skin and tissue.
  • High photothermal conversion is advantageous for killing tumors and viruses in-vivo.
  • Being positively charged and small lends to better intercellular uptake.
  • Changing shape upon laser incidences combined with facile synthesis creates a great drug delivery vehicle.

A12-25-550
A12-25-550

I am having a really hard time centrifuging the nanorods without them crashing.  I want to conjugate and purify - what do you recommend?

Purification of the nanorods is no simple task.  That's why we developed our our conjugated nanorods with carboxyl, amine, biotin, and neutravidin terminations - to make it easy for any of your conjugations. For a published paper regarding conjugating the gold nanorods, refer Rostro-Kohanloo et. al, "The stabilization and targeting of surfactant-synthesized gold nanorods", Nanotechnology 20 (2009)( http://atmsp.whut.edu.cn/resource/pdf/11144.pdf)

We have bought some gold nanorods from you and we would like to know the thickness of the CTAB coating because we are interested in the interaction between these CTAB coated nanorods with the surrounding. Do you know the thickness of the CTAB coating?

CTAB forms a bilayer micelle on the nanorods.  If it is completely linear, then the bilayer thickness would be ~3nm.

I don't see any CTAB in your nanorod solution, even at 4 °C. Why not?

We have devised a method that removes most all of the CTAB in the solution, only leaving that necessary for the stability of the nanorods.

Your nanorods never shift wavelength and their extinctions are very stable in both intensity and wavelength. I thought that nanorods were notorious for shifting to lower wavelengths with time?

Like the method described above, not only do we remove the excess CTAB, we are also able to remove all the active components, leaving only stable nanorods.

Why are nanorods positive in charge? All of the spheres I've ever used are negative in charge?

The fact that CTAB is a micelle creates the + positive charge on the nanorod.

What does the term "bare" when applied to nanoparticles mean?

There are no such thing as completely "bare" nanoparticles that are stable long term. Ligands are used to stabilize gold nanoparticles. The key to a "bare" nanoparticle ligand is one that is lightly adsorbed and can be readily replaced through covalent, charge, or other types of bonds.

How do you size your nanorods?

We use a combination of TEM and UV VIS to correctly assign exact measurements and variance to the nanorods.

"We are now using Nanopartz Oligo Functionalized Nanorods for all of our DNA Origami work, and we are getting very good results!"

Dr. Guillermo Acuna 
TU Braunschweig 
Institute of Physical and Theoretical Chemistry
AG Tinnefeld for NanoBioSciences

 

"I have used Nanopartz MUTAB coated gold nanorods and their concentrated bare spherical gold nanoparticles for electrospray applications and have found their products easy to use, and their technical support to be excellent.  The solutions have excellent stability over long periods of time and meet the promised specifications closely. Thanks Nanopartz, I look to continue to use your products for many years to come."

Ranganathan Gopalakrishnan 
PhD Student 
University of Minnesota

 

"We have been using Nanopartz bare Au nanorods and bare Au nanospheres for studying their individual intrinsic photoemission properties in vacuum. We have been extremely pleased with their cleanliness and uniformity."

Andrej Grubisic, PhD
Postdoctoral Fellow at University of Colorado at Boulder - JILA



"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

 

SERS‐coded gold nanorods as a multifunctional platform for densely multiplexed near‐infrared imaging and photothermal heating

G von Maltzahn, A Centrone, JH Park… - Advanced …, 2009 - Wiley Online Library
... In this work, we show that the near-infrared plasmon resonance of gold nanorods (NRs) may
be exploited to provide an integrated platform for multiplexed Raman detection and
remote-controlled ... CTAB-coated gold NRs were purchased from Nanopartz with a peak ...

 

Computationally guided photothermal tumor therapy using long-circulating gold nanorodantennas

G von Maltzahn, JH Park, A Agrawal, NK Bandaru… - Cancer research, 2009 - AACR
... Computationally Guided Photothermal Tumor Therapy Using Long-Circulating Gold Nanorod
Antennas. ... camera, and Dr. Eugene Zubarev and Bishnu Khanal at Rice University for their
synthesis and characterization of CTAB-coated gold nanorods through Nanopartz...

 

Resolving rotational motions of nano-objects in engineered environments and live cells withgold nanorods and differential interference contrast microscopy

G Wang, W Sun, Y Luo, N Fang - Journal of the American …, 2010 - ACS Publications
... cetyl trimethylammonium bromide (CTAB)-capped (25 × 73 nm, 1.3 × 10 11 particles/mL,
Nanopartzgold nanorods... Briefly, excessive surfactant was first removed from 1.0 mL of gold
nanorod solution by ... a final thiol concentration of 0.2 mM and reacted with gold nanorods for 2 ...

 

Gold nanorods and their plasmonic properties

H Chen, L Shao, Q Li, J Wang - Chemical Society Reviews, 2013 - pubs.rsc.org
... been established as the commercial suppliers for high-quality Au nanorods, such as Nanopartz
59 and ... 4.2 Gold nanorod–semiconductor hybrid nanostructures. Integration of Au nanorods with
semiconducting materials is driven by the combination of multiple functionalities into ...

 

Noninvasive in vivo spectroscopic nanorod-contrast photoacoustic mapping of sentinel lymph nodes

KH Song, C Kim, K Maslov, LV Wang - European journal of radiology, 2009 - Elsevier
... Cover image Cover image. Noninvasive in vivo spectroscopic nanorod-contrast photoacoustic
mapping of sentinel lymph nodes. ... As lymph node tracers, gold nanorods (Nanopartz Inc.) were
injected on a left forepaw pad in the amount of 0.1 ml at a 979-pM concentration [16]. ...

 

Real-time imaging of cardiovascular dynamics and circulating gold nanorods with multispectral optoacoustic tomography

A Taruttis, E Herzog, D Razansky… - Optics express, 2010 - opticsinfobase.org
... with an absorption peak in the near-infrared (Ntracker 30-PM-780, Nanopartz Inc., Loveland ... For
gold nanorod measurements, mice were scanned at 5 excitation wavelengths (725 nm, 750 nm ...
200 μl of AuNR at a concentration of 13 nM (of the nanorods themselves, corresponds ...

 

Oriented Assembly of Gold Nanorods on the Single‐Particle Level

C Kuemin, L Nowack, L Bozano… - Advanced Functional …, 2012 - Wiley Online Library
... of Colloidal Suspensions: Colloidal suspensions of gold nanorods were purchased from
Nanopartz Inc. ... Colloidal suspensions of gold nanorods in 0.9 mM CTAB solutions were filtered
using Millex ... volume of supernatant removed, to adjust the concentration of the nanorods to c ...

 

One-photon plasmon luminescence and its application to correlation spectroscopy as a probe for rotational and translational dynamics of gold nanorods

A Tcherniak, S Dominguez-Medina… - The Journal of …, 2011 - ACS Publications
... For gold nanorods (AuNRs), it has been shown that scattering,(25, 26) absorption, (27 ...
measurement of the rotational and translational diffusion constants of gold NPs, we ... Nanoparticle
Characterization AuNSs and AuNRs were purchased from Nanopartz and characterized with ...

 

Geometry and surface characteristics of gold nanoparticles influence their biodistribution and uptake by macrophages

MM Janát-Amsbury, A Ray, CM Peterson… - European Journal of …, 2011 - Elsevier
... and 10 × 45 nm for gold nanorods as reported by the manufacturer (Nanopartz, Loveland, CO ...
uniform in size and shape, whereas there was 6% shape discrepancy for nanorods (See Table ...
shape while there were several non-rod-shaped particles in the gold nanorod samples. ...

 

Single-particle spectroscopy of gold nanorods beyond the quasi-static limit: varying the width at constant aspect ratio

LS Slaughter, WS Chang, P Swanglap… - The Journal of …, 2010 - ACS Publications
... medium for chemical sensing or probing the dynamics of biological molecules.(1-6) The
longitudinal SPR of gold nanorods (AuNRs) in ... model by: ε m = α − β 2 λ 2 , where α = 9.8 and
β = 7.3 μm −1 for gold... We thank Christian Schoen from Nanopartz for providing the slim AuNRs ...