Quantitative of pesticide residue on the surface of navel orange by confocal microscopy Raman spectrometer

Liu, Yande; He, Bingbing

doi:10.1142/s1793545815500017

Cited by 4 publications

(1 citation statement)

References 19 publications

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“…Dimethoate exhibited a clear SERS fingerprint pattern in the presence of the AuNP mirror, and a distinct peak was observed at 904 cm –1 (S-CH 2 ) due to the interaction between the sulfur group and AuNPs . The peak intensity at 904 cm –1 was chosen as the characteristic peak of dimethoate for SERS mapping.…”

Section: Resultsmentioning

confidence: 89%

Investigation of the Impact of a Pesticide Adjuvant on Dimethoate Persistence, Penetration, and Stability on Apples Using Surface-Enhanced Raman Spectroscopy

Wang

2022

ACS Agric. Sci. Technol.

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Pesticides are often applied with adjuvants to improve their efficacy and stability. However, the knowledge about pesticide behaviors with adjuvants is still lacking. This study investigated the impact of a common adjuvant on the persistence and penetration of dimethoate on and in apples and dimethoate stability in washing solutions using the surface-enhanced Raman spectroscopic (SERS) mapping technique. Results demonstrated that the adjuvant did not significantly affect dimethoate removal after postharvest washing or dimethoate penetration (30 ± 5 μm) in apples. Tap water showed similar effectiveness as baking soda to remove dimethoate with and without the adjuvant in 5 min. Dimethoate with and without the adjuvant was stable in tap water but was degraded to omethoate in the baking soda rapidly in 40 min. Considering the higher toxicity of omethoate, tap water would be recommended to remove dimethoate compared with baking soda. The study provides a better understanding of adjuvant effects on pesticide behaviors.

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Section: Resultsmentioning

confidence: 89%

Investigation of the Impact of a Pesticide Adjuvant on Dimethoate Persistence, Penetration, and Stability on Apples Using Surface-Enhanced Raman Spectroscopy

Wang

2022

ACS Agric. Sci. Technol.

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Visualization of reticulophagy in living cells using an endoplasmic reticulum-targeted p62 mutant

Wang

Liu

Qin

et al. 2017

Sci. China Life Sci.

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Reticulophagy is a type of selective autophagy in which protein aggregate-containing and/or damaged endoplasmic reticulum (ER) fragments are engulfed for lysosomal degradation, which is important for ER homeostasis. Several chemical drugs and mutant proteins that promote protein aggregate formation within the ER lumen can efficiently induce reticulophagy in mammalian cells. However, the exact mechanism and cellular localization of reticulophagy remain unclear. In this report, we took advantage of the self-oligomerization property of p62/SQSTM1, an adaptor for selective autophagy, and developed a novel reticulophagy system based on an ER-targeted p62 mutant to investigate the process of reticulophagy in living cells. LC3 conversion analysis via western blot suggested that p62 mutant aggregate-induced ER stress triggered a cellular autophagic response. Confocal imaging showed that in cells with moderate aggregation conditions, the aggregates of ER-targeted p62 mutants were efficiently sequestered by autophagosomes, which was characterized by colocalization with the autophagosome precursor marker ATG16L1, the omegasome marker DFCP1, and the late autophagosomal marker LC3/GATE-16. Moreover, time-lapse imaging data demonstrated that the LC3- or DFCP1-positive protein aggregates are tightly associated with the reticular structures of the ER, thereby suggesting that reticulophagy occurs at the ER and that omegasomes may be involved in this process.

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A data fusion approach on confocal Raman microspectroscopy and electronic nose for quantitative evaluation of pesticide residue in tea

Sanaeifar

Liu

et al. 2021

Biosystems Engineering

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Quantitative of pesticide residue on the surface of navel orange by confocal microscopy Raman spectrometer

Cited by 4 publications

References 19 publications

Investigation of the Impact of a Pesticide Adjuvant on Dimethoate Persistence, Penetration, and Stability on Apples Using Surface-Enhanced Raman Spectroscopy

Investigation of the Impact of a Pesticide Adjuvant on Dimethoate Persistence, Penetration, and Stability on Apples Using Surface-Enhanced Raman Spectroscopy

Visualization of reticulophagy in living cells using an endoplasmic reticulum-targeted p62 mutant

A data fusion approach on confocal Raman microspectroscopy and electronic nose for quantitative evaluation of pesticide residue in tea

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