High-sensitivity low-coherence dynamic light scattering and particle sizing for nanoparticles

2011 ◽  
Author(s):  
Katsuhiro Ishii ◽  
Sohichiro Nakamura ◽  
Yuki Sato
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
High Sensitivity ◽  
Particle Sizing ◽  
Low Coherence

Influence of Wall-Drag Effect on Particle Sizing in Low-Coherence Dynamic Light Scattering

2010 ◽  
Vol 30 (8) ◽  
pp. 2257-2261
Author(s):  
夏辉 Xia Hui ◽  
陈智全 Chen Zhiquan ◽  
李富石 Li Fushi ◽  
林旭 Lin Xu ◽  
肖元元 Xiao Yuanyuan ◽  
...  
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Particle Sizing ◽  
Drag Effect ◽  
Low Coherence

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
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