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Volume 83
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Volume 82
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Volume 81
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Volume 80
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Volume 79
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Volume 78
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Volume 77
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Volume 76
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Volume 75
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Volume 74
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Volume 73
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Volume 72
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Volume 83
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Volumes 60-71 (2022)
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Volume 71
Pages 1-108 (December 2022)
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Volume 70
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Volume 69
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Volume 68
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Volume 67
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Volume 66
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Volume 65
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Volume 64
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Volume 63
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Volume 62
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Volume 61
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Volume 60
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Volume 71
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• Image dynamic light scattering (IDLS) method was introduced for nanoparticle sizing.
• Real-time acquisition was achieved with a CCD camera.
• Standard latex spheres were tested to verify the feasibility of IDLS method.
• Temperature control unit was not essential in short acquisition time of milliseconds.
• Use of a dispersion medium with high viscosity was recommended.
In this paper, an image dynamic light scattering method for nanoparticle sizing is introduced. The spatial distribution of the scattered lights from nanoparticles undergoing Brownian motion was captured at a high frame rate by a digital camera within one second, which is considerably faster than the conventional photon correlation spectroscopy method. The captured series of photographs were meshed into thousands of small units for calculating the intensity autocorrelation functions in parallel. Experimental results from the measurements of three reference nanoparticle samples (27, 80, and 352 nm in diameters) demonstrated the feasibility of this method.