Review Article

Differential Mobility Particle Sizers for Nanoparticle Characterization

[+] Author and Article Information
Jingjie Zhang

Department of Mechanical
and Nuclear Engineering,
Virginia Commonwealth University,
401 W Main Street,
Richmond, VA 23284
e-mail: jzhang4@vcu.edu

Daren Chen

Department of Mechanical
and Nuclear Engineering,
Virginia Commonwealth University,
401 W Main Street,
Richmond, VA 23284
e-mail: dchen3@vcu.edu

1Corresponding author.

Manuscript received April 5, 2014; final manuscript received July 14, 2014; published online August 19, 2014. Assoc. Editor: Hsiao-Ying Shadow Huang.

J. Nanotechnol. Eng. Med 5(2), 020801 (Aug 19, 2014) (9 pages) Paper No: NANO-14-1030; doi: 10.1115/1.4028040 History: Received April 05, 2014; Revised July 14, 2014

Differential mobility particle sizers (DMPSs) are instruments for online sizing gas-borne particles in submicrometer and nanometer diameter ranges. The aerosol charger, the differential mobility analyzer (DMA), and the particle concentration detector are three essential components in DMPSs. In the past four decades, the design of DMAs has evolved into a variety of modern versions to extend their sizing limits, especially in lower detectable size limits. The DMAs are now capable of classifying or sizing particles in the diameters down to 1.0 nm. This article gives a brief overview of state-of-the-art DMAs particularly designed for classifying particles with sizes down to sub-10 nm.

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Grahic Jump Location
Fig. 3

Schematic diagram of (a) cylindrical DMA by Knutson and Whitby [17] and (b) RDMA

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Fig. 2

Principle of operation of the DMA

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Fig. 1

Fundamental configuration of a DMPS

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Fig. 4

Transfer function of the DMA (a) nondiffusion, ideal transfer function and (b) diffusion broadening of the ideal transfer function

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Fig. 11

Illustration of the principle of the 2D drift DMA [60]

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Fig. 12

Cross-sectional view of functional region of the ROMIAC [59]

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Fig. 5

Schematic diagram of the TSI DMA (Model 3071)

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Fig. 6

Schematic diagram of the Nano-DMA developed by Chen et al. [24]

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Fig. 7

Schematic diagram of the Vienna type DMA developed by Reischl and coworkers [19]

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Fig. 8

Schematic diagram of the Rosser DMA—a variant of the Vienna DMA [55]

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Fig. 9

Schematic diagram of the Vienna type UDMA—a variant of the Vienna DMA [56]

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Fig. 10

Schematic diagram of the Half-Mini DMA developed by Fernández de la Mora and Kozlowski [33]




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