Measurement of dispersion of nanoparticles in a dense suspension by high-sensitivity low-coherence dynamic light scattering

2014 ◽  
Author(s):  
Katsuhiro Ishii ◽  
Sohichiro Nakamura ◽  
Yuki Sato
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
High Sensitivity ◽  
Low Coherence ◽  
Dense Suspension ◽  
Dispersion Of Nanoparticles

scholarly journals A simple and sensitive sensor for silver ions based on unmodified gold nanoparticles by using dynamic light scattering techniques

2017 ◽  
Vol 95 (12) ◽  
pp. 1267-1272 ◽  
Author(s):  
Zhiyou Xiao ◽  
Anjiang Tang ◽  
Hongsheng Huang ◽  
Ze Wang
Keyword(s):  
Gold Nanoparticles ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
High Sensitivity ◽  
Silver Ions ◽  
Hydrodynamic Diameter ◽  
Optimum Conditions ◽  
Sensitivity And Selectivity ◽  
Sensitive Sensor ◽  
Average Hydrodynamic Diameter

A simple and sensitive assay for Ag+ was developed with unmodified gold nanoparticles (AuNPs) by using dynamic light scattering techniques. Ag+ could induce the oligonucleotide (5′-ATC ACT ATA TCA TAT ACT CAT-3′) to change from a single-stranded structure to a double-stranded structure and desorb from the surface of AuNPs, which triggered the aggregation of AuNPs in the salt solution. The average hydrodynamic diameter of aggregated AuNPs could be detected by using dynamic light scattering techniques. Under the optimum conditions, the average hydrodynamic diameter of AuNPs is proportional to the concentration of Ag+ within the range of 13.3–100.0 nmol/L, with a detection limit of 3.2 nmol/L. The method is easy to operate and has low sample consumption, high sensitivity and selectivity.

Measuring the Quality of Milk Using Low-Coherence Dynamic Light Scattering

2008 ◽  
Vol 35 (1) ◽  
pp. 102-105
Author(s):  
夏辉 Xia Hui ◽  
黄生祥 Huang Shengxiang ◽  
李宏建 Li Hongjian
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Low Coherence ◽  
Quality Of Milk

Measurement of optical constants for dense media by low-coherence dynamic light scattering

2008 ◽  
Vol 281 (6) ◽  
pp. 1331-1336 ◽  
Author(s):  
Hui Xia ◽  
Hongjian Li ◽  
Bingchu Yang ◽  
Katsuhiro Ishii ◽  
Toshiaki Iwai
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Optical Constants ◽  
Low Coherence ◽  
Dense Media
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