Pollen classification using a single particle fluorescence spectroscopy technique

Swanson, Benjamin E.; Freeman, Maxwell; Rezgui, Samir; Huffman, J. A.

doi:10.1080/02786826.2022.2142510

Cited by 4 publications

(4 citation statements)

References 113 publications

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“…The purchased ryegrass pollen was the same species of ryegrass used in the chamber experiments. Previous studies have also used purchased pollen for different experiments including ice nucleation. − ,,, One caveat to this approach is that commercially available pollen may be slightly different than the fresh emissions from our chamber . However, this was the only option available to us at the time of the experiments.…”

Section: Experimental Methodsmentioning

confidence: 99%

“… 14 − 16 , 32 , 38 , 39 One caveat to this approach is that commercially available pollen may be slightly different than the fresh emissions from our chamber. 40 However, this was the only option available to us at the time of the experiments.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…[14][15][16]32,38,39 One caveat to this approach is that commercially available pollen may be slightly different than the fresh emissions from our chamber. 40 However, this was the only option available to us at the time of the experiments. In our previous study, 3 experiments were conducted to determine the aerosol contribution from a live oak branch and leaves in the absence of pollen.…”

Section: ■ Introductionmentioning

confidence: 99%

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Pollen Emissions of Subpollen Particles and Ice Nucleating Particles

Matthews

Alsante

Brooks

2023

ACS Earth Space Chem.

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Pollen grains significantly contribute to the aerosol population, and levels are predicted to increase in the future. Under humid atmospheric conditions, pollen grains can rupture creating pollen grain fragments referred to as subpollen particles (SPPs) which are dispersed into the atmosphere with wind. In this laboratory study, SPP emission factors were determined for ryegrass, Lolium sp., and giant ragweed,Ambrosia trifida, in terms of the number of SPPs produced per pollen grain and the number of SPPs produced per m 2 , which were compared to previously measured live oak,Quercus virginiana, emission factors. The SPP emission factors were 4.9 × 10 13 ± 4.3 × 10 13 SPPs per m 2 for ryegrass, 1.3 × 10 15 ± 1.1 × 10 15 SPPs per m 2 for giant ragweed, and 1.1 × 10 15 ± 1.6 × 10 15 SPPs per m 2 for live oak. SPPs and whole pollen grains from these species were evaluated for their ice nucleation efficiency in immersion and contact mode freezing. Measurements of the ice nucleation efficiency indicate that SPPs are weakly effective INPs in immersion mode, but that pollen grains represent a source of moderately efficient INPs in immersion and contact modes.

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Section: Experimental Methodsmentioning

confidence: 99%

Section: Experimental Methodsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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Pollen Emissions of Subpollen Particles and Ice Nucleating Particles

Matthews

Alsante

Brooks

2023

ACS Earth Space Chem.

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“…However, many commonly used detection techniques are both expensive and challenging to implement, such as liquid chromatography [11][12][13][14][15], atomic absorption spectroscopy (AAS) [16][17][18], inductively coupled plasma mass spectrometry (ICP-MS) [19][20][21], and so forth. However, the fluorescence technique has gained significant appeal in recent years due to its inherent advantages, including high sensitivity, ease of operation, cost-effectiveness, and rapid detection times [22][23][24][25][26][27][28]. Therefore, the design and synthesis of an effective fluorescence sensor is considered by scientists.…”

Section: Introductionmentioning

confidence: 99%

A dual functional turn off florescence sensor using metal–organic framework for sensitive detection of aluminum(III) in aqueous solution

Saedi,

Roushani,

Darabi

et al. 2023

Luminescence

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Aluminum, classified as one of the toxic heavy metals, has a recommended daily consumption limit of 3–10 mg, as specified by the World Health Organization (WHO). Herein, the selective and sensitive aluminum(III) fluorescence sensor based on TMU‐16 metal–organic frameworks (MOFs) in aqueous medium, is reported. A sensing pathway was found via the cation exchange between aluminum(III) and zinc(II) ions, and caused selectivity and sensitivity detection of aluminum(III) with a 5–100 ppm linear range and 1.99 ppm limit of detection (LOD).This sensor offers the advantage of accurately determining the concentration range of aluminum(III) ions. At low concentrations, only fluorescence quenching was observed, while at higher concentrations, fluorescence emission not only undergoes quenching but also exhibits a blue shift in wavelength. Notably, the sensor demonstrates no interference from cation solutions of mercury(II), zinc(II), nickel(II), lead(II), cobalt(II), cadmium(II), silver(I), chromium(III), and iron(III).Another significant feature of this sensor is its selectivity toward copper(II) and aluminum(III) ions, due to quenching fluorescence in the presence of copper(II) ion. The results presented the sensor's selectivity toward copper(II) at low concentrations and aluminum(III) at high concentrations.

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