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  1. Article: Biodegradable and Seasonal Variation of Organic Carbon Affected by Anthropogenic Activity: A Case in Xuan Thuy Mangrove Forest, North Vietnam

    Nguyen, Thi Mai Huong / Le, Thi Phuong Quynh / Hoang, Vinh Van / Vu, Cam Tu

    Water. 2022 Feb. 28, v. 14, no. 5

    2022  

    Abstract: The samples were collected from different areas (from natural, planted, and deforested mangrove forests) to study the impact of anthropogenic activity on biodegradable and seasonal variation of organic carbon (OC) in Xuan Thuy mangrove forest, North ... ...

    Abstract The samples were collected from different areas (from natural, planted, and deforested mangrove forests) to study the impact of anthropogenic activity on biodegradable and seasonal variation of organic carbon (OC) in Xuan Thuy mangrove forest, North Vietnam. We observed a positive relationship between TSS and both POC and DOC (r² = 0.993; p < 0.0001 và r² = 0.942; p < 0.0001, respectively), suggesting that erosion and resuspension increase OC delivery at the mangroves. Mean DOC and POC concentrations in the rainy season (4.8 ± 3.0 mgCL⁻¹ and 6.9 ± 1.6 mgCL⁻¹, respectively) were significantly higher than those in the dry season (3.1 ± 0.9 mgCL⁻¹ and 2.9 ± 0.4 mgCL⁻¹, respectively). The mean percentage of biodegradable for 40 days was about 47 ± 15% of BTOC, 45 ± 17% of BDOC, and 48 ± 18% of BPOC. The rainy season indicated that there was more biodegradable OM in the mangroves compared to the dry season. The molar ratio of OC and total nitrogen was from 0.4 to 25.9, showing a hybrid of terrestrial organic matter and aquatic. Lower C/N and great variation of POC/Chla in the deforested mangroves was due to augmented OM input from aquaculture activities in this area. The results of this study indicate that deforested mangrove and an increase in aquaculture activities will contribute to anthropogenic OM reaching the sea.
    Keywords anthropogenic activities ; aquaculture ; biodegradability ; deforestation ; dry season ; hybrids ; mangrove forests ; organic carbon ; seasonal variation ; total nitrogen ; water ; wet season ; Vietnam
    Language English
    Dates of publication 2022-0228
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2521238-2
    ISSN 2073-4441
    ISSN 2073-4441
    DOI 10.3390/w14050773
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Ionomics and metabolomics analysis reveal the molecular mechanism of metal tolerance of Pteris vittata L. dominating in a mining site in Thai Nguyen province, Vietnam.

    Nguyen, Ngoc-Lien / Bui, Van-Hoi / Pham, Hoang-Nam / To, Hien-Minh / Dijoux-Franca, Marie-Geneviève / Vu, Cam-Tu / Nguyen, Kieu-Oanh Thi

    Environmental science and pollution research international

    2022  Volume 29, Issue 58, Page(s) 87268–87280

    Abstract: This study aims to find the interaction between ionome and metabolome profiles of Pteris vittata L., an arsenic hyperaccumulator plant, to reveal its metal tolerance mechanism. Therefore, at the Pb-Zn mining sites located in Thai Nguyen province, Vietnam, ...

    Abstract This study aims to find the interaction between ionome and metabolome profiles of Pteris vittata L., an arsenic hyperaccumulator plant, to reveal its metal tolerance mechanism. Therefore, at the Pb-Zn mining sites located in Thai Nguyen province, Vietnam, where these species dominate, soil and plant samples were collected. Their multi-element compositions were analyzed using inductively coupled plasma mass spectrometry (ICP-MS) and thus referred to as the "ionomics" approach. In parallel, the widely targeted metabolomics profiles of these plant samples were performed using liquid chromatography-tandem mass spectrometry (UPLC-QqQ-MS). Nineteen elements, including both metals and nonmetals, were detected and quantified in both tissues of thirty-five plant individuals. A comparison of these elements' levels in two tissues showed that above-ground parts accumulated more As and inorganic P, whereas Zn, Pb, and Sb were raised mostly in the under-ground samples. The partial least squares regression (PLSR) model predicting the level of each element by the whole metabolome indicated that the enhancement of flavonoids content plays an essential contribution in adaptation with the higher levels of Pb, Ag, and Ni accumulated in the aerial part, and Mn, Pb in subterranean part. Moreover, the models also highlighted the effect of Mn and Pb on the metabolic induction of adenosine derivatives in subterranean parts. At the same time, the model presented the most contribution of As to the metabolisms of the amino acids of this tissue. On those accounts, the developed integration approach linking the ionomics and metabolomics data of P. vittata improved the understanding of the molecular mechanism of hyperaccumulation characteristics and provided markers that could be targeted in future investigations.
    MeSH term(s) Humans ; Pteris/metabolism ; Vietnam ; Lead/analysis ; Thailand ; Soil Pollutants/analysis ; Biodegradation, Environmental ; Arsenic/analysis ; Plants/metabolism
    Chemical Substances Lead (2P299V784P) ; Soil Pollutants ; Arsenic (N712M78A8G)
    Language English
    Publishing date 2022-07-08
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-21820-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Disentangling fine particles (PM

    Dominutti, Pamela A / Mari, Xavier / Jaffrezo, Jean-Luc / Dinh, Vy Thuy Ngoc / Chifflet, Sandrine / Guigue, Catherine / Guyomarc'h, Lea / Vu, Cam Tu / Darfeuil, Sophie / Ginot, Patrick / Elazzouzi, Rhabira / Mhadhbi, Takoua / Voiron, Céline / Martinot, Pauline / Uzu, Gaëlle

    The Science of the total environment

    2024  Volume 923, Page(s) 171466

    Abstract: A comprehensive chemical characterization of fine particulate matter ( ... ...

    Abstract A comprehensive chemical characterization of fine particulate matter (PM
    Language English
    Publishing date 2024-03-05
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2024.171466
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Ionomics and metabolomics analysis reveal the molecular mechanism of metal tolerance of Pteris vittata L. dominating in a mining site in Thai Nguyen province, Vietnam

    Nguyễn, Ngọc Liễn / Bùi, Văn Hoi / Phạm, Hoàng Nam / To, Hien-Minh / Dijoux-Franca, Marie-Geneviève / Vu, Cam-Tu / Nguyen, Kieu-Oanh Thi

    Environ Sci Pollut Res. 2022 Dec., v. 29, no. 58 p.87268-87280

    2022  

    Abstract: This study aims to find the interaction between ionome and metabolome profiles of Pteris vittata L., an arsenic hyperaccumulator plant, to reveal its metal tolerance mechanism. Therefore, at the Pb–Zn mining sites located in Thai Nguyen province, Vietnam, ...

    Abstract This study aims to find the interaction between ionome and metabolome profiles of Pteris vittata L., an arsenic hyperaccumulator plant, to reveal its metal tolerance mechanism. Therefore, at the Pb–Zn mining sites located in Thai Nguyen province, Vietnam, where these species dominate, soil and plant samples were collected. Their multi-element compositions were analyzed using inductively coupled plasma mass spectrometry (ICP-MS) and thus referred to as the “ionomics” approach. In parallel, the widely targeted metabolomics profiles of these plant samples were performed using liquid chromatography-tandem mass spectrometry (UPLC-QqQ-MS). Nineteen elements, including both metals and nonmetals, were detected and quantified in both tissues of thirty-five plant individuals. A comparison of these elements’ levels in two tissues showed that above-ground parts accumulated more As and inorganic P, whereas Zn, Pb, and Sb were raised mostly in the under-ground samples. The partial least squares regression (PLSR) model predicting the level of each element by the whole metabolome indicated that the enhancement of flavonoids content plays an essential contribution in adaptation with the higher levels of Pb, Ag, and Ni accumulated in the aerial part, and Mn, Pb in subterranean part. Moreover, the models also highlighted the effect of Mn and Pb on the metabolic induction of adenosine derivatives in subterranean parts. At the same time, the model presented the most contribution of As to the metabolisms of the amino acids of this tissue. On those accounts, the developed integration approach linking the ionomics and metabolomics data of P. vittata improved the understanding of the molecular mechanism of hyperaccumulation characteristics and provided markers that could be targeted in future investigations.
    Keywords Pteris vittata ; adenosine ; aerial parts ; arsenic ; atomic absorption spectrometry ; flavonoids ; hyperaccumulators ; ionome ; ionomics ; liquid chromatography ; metabolome ; metabolomics ; metal tolerance ; models ; soil ; tandem mass spectrometry ; Vietnam
    Language English
    Dates of publication 2022-12
    Size p. 87268-87280.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-21820-8
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  5. Article ; Online: Assessing the bioavailability of black carbon-derived dissolved organic matter for marine heterotrophic prokaryotes.

    Martinot, Pauline L / Guigue, Catherine / Chifflet, Sandrine / Cuny, Philippe / Barani, Aude / Didry, Morgane / Dignan, Clara / Guyomarc'h, Léa / Pradel, Nathalie / Pringault, Olivier / Van Wambeke, France / Vu, Cam Tu / Mari, Xavier / Tedetti, Marc

    The Science of the total environment

    2023  Volume 901, Page(s) 165802

    Abstract: Here we investigated the bioavailability of black carbon (BC)-derived dissolved organic matter (DOM) for a natural mixed community of marine heterotrophic prokaryotes. We ran an in vitro biodegradation experiment that took place over 3 months and exposed ...

    Abstract Here we investigated the bioavailability of black carbon (BC)-derived dissolved organic matter (DOM) for a natural mixed community of marine heterotrophic prokaryotes. We ran an in vitro biodegradation experiment that took place over 3 months and exposed a community of organisms collected in the northwestern Mediterranean Sea (Bay of Marseille, France) to three different soluble fractions of BC prepared in the laboratory from various fossil fuel combustion particulates: standard diesel (D
    MeSH term(s) Dissolved Organic Matter ; Soot ; Biological Availability ; Polycyclic Aromatic Hydrocarbons/analysis ; Carbon
    Chemical Substances Dissolved Organic Matter ; Soot ; Polycyclic Aromatic Hydrocarbons ; Carbon (7440-44-0)
    Language English
    Publishing date 2023-07-29
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.165802
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Corrigendum to "Assessing the bioavailability of black carbon-derived dissolved organic matter for marine heterotrophic prokaryotes" [Sci. Total Environ. 901 (2023) 165802].

    Martinot, Pauline L / Guigue, Catherine / Chifflet, Sandrine / Cuny, Philippe / Barani, Aude / Didry, Morgane / Dignan, Clara / Guyomarc'h, Léa / Pradel, Nathalie / Pringault, Olivier / Van Wambeke, France / Vu, Cam Tu / Mari, Xavier / Tedetti, Marc

    The Science of the total environment

    2023  Volume 904, Page(s) 166251

    Language English
    Publishing date 2023-08-21
    Publishing country Netherlands
    Document type Published Erratum
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.166251
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  7. Article ; Online: Assessing the bioavailability of black carbon-derived dissolved organic matter for marine heterotrophic prokaryotes

    Martinot, Pauline L. / Guigue, Catherine / Chifflet, Sandrine / Cuny, Philippe / Barani, Aude / Didry, Morgane / Dignan, Clara / Guyomarc'h, Léa / Pradel, Nathalie / Pringault, Olivier / Van Wambeke, France / Vu, Cam Tu / Marí i Cerezo, Xavier / Tedetti, Marc

    Science of the Total Environment. 2023 Nov., v. 901 p.165802-

    2023  

    Abstract: Here we investigated the bioavailability of black carbon (BC)-derived dissolved organic matter (DOM) for a natural mixed community of marine heterotrophic prokaryotes. We ran an in vitro biodegradation experiment that took place over 3 months and exposed ...

    Abstract Here we investigated the bioavailability of black carbon (BC)-derived dissolved organic matter (DOM) for a natural mixed community of marine heterotrophic prokaryotes. We ran an in vitro biodegradation experiment that took place over 3 months and exposed a community of organisms collected in the northwestern Mediterranean Sea (Bay of Marseille, France) to three different soluble fractions of BC prepared in the laboratory from various fossil fuel combustion particulates: standard diesel (DREF), oxidized diesel (DREF₋OX), and natural samples of ship soot (DSHIP). Over the course of the three months, we observed significant decreases in the concentrations of dissolved organic carbon (DOC; from 9 to 21 %), dissolved BC (DBC; from 22 to 38 %) and dissolved polycyclic aromatic hydrocarbons (d-PAH; from 24 to 64 %) along with variability in the growth dynamics and activity of the heterotrophic prokaryotic community. The heterotrophic prokaryotic community exposed to DREF₋OX treatment showed the highest values of respiration and production and the highest cell abundance, associated with the highest decrease in DOC (21 %) and d-PAH (64 %) concentrations. In the DREF and DSHIP treatments, prokaryotic activity was oriented towards anabolism. DREF treatment led to the highest decrease in DBC concentration (38 %). DSHIP treatment, which presented a substantially different d-PAH and dissolved metals content to the other two treatments, showed the lowest decreases in DOC, DBC and d-PAH concentrations, as well as the lowest prokaryotic activity and biomasses. Our results indicate that BC-derived DOM, including the most condensed fraction of this material, is partly bioavailable and therefore likely to be assimilated by marine prokaryotes. The origin of BC/soot deposited at the ocean surface turns out to be a key parameter that dictates the efficiency of biodegradation of its dissolved fraction by heterotrophic prokaryotes.
    Keywords anabolism ; bioavailability ; biodegradation ; dissolved organic carbon ; environment ; fossil fuels ; fuel combustion ; particulates ; prokaryotic cells ; soot ; France ; Mediterranean Sea ; Black carbon ; Dissolved organic matter ; Marine prokaryotes ; Bacterial degradation
    Language English
    Dates of publication 2023-11
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.165802
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  8. Article: Seasonal and spatial variation in biodegradability of organic carbon along the Red River, Vietnam

    Nguyen, Thi Mai Huong / Le, Thi Phuong Quynh / Van Hoang, Vinh / Nhu, Da Le / Vu, Cam Tu / Thi Thuy, Duong

    Carbon management. 2021 Sept. 3, v. 12, no. 5

    2021  

    Abstract: The biodegradability of organic carbon in aquatic ecosystems has been broadly attributed to a variety of interacting physical, chemical and biological factors and processes. The Red River is the second largest river in Vietnam. It also constitutes the ... ...

    Abstract The biodegradability of organic carbon in aquatic ecosystems has been broadly attributed to a variety of interacting physical, chemical and biological factors and processes. The Red River is the second largest river in Vietnam. It also constitutes the main source of water for a large percentage of the population of North Vietnam, however, little has been published on the variation in biodegradability of organic matter in this ecosystem, despite its importance in terms of carbon export to the adjacent coastal ocean. Here, we present the results of an investigation into seasonal and spatial variations of the biodegradability of organic carbon in the Red River basin, North Viet Nam. Biodegradability of DOC (BDOC) and POC (BPOC) seasonally differed at the four stations investigated. BDOC concentrations ranged from 0.2 − 2.84 mgCl⁻¹ and BPOC concentrations fluctuated from 0.02 − 2.6 mgCl⁻¹. In the biphasic degradation, the degradation constant for the labile fraction of DOC (k₁) varied between 0.0036 and 0.6357, with values being significantly higher (p < 0.014) during the rainy season than during the dry season. In contrast, no significant difference (p = 0.352) in the biodegradability of the POC labile fraction was observed. In general, the average observed in our study values of the biodegradable fraction of particulate was lower than BDOC, BPOC ranged from 16% to 39%, with biodegradability of total organic carbon (BTOC) ranging from 33% to 44%. The higher rainy %BDOC (49%) than dry season (29%) in watersheds dominated by wetlands.
    Keywords administrative management ; biodegradability ; dry season ; rivers ; total organic carbon ; watersheds ; wet season ; Vietnam
    Language English
    Dates of publication 2021-0903
    Size p. 549-557.
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 2590249-0
    ISSN 1758-3012 ; 1758-3004
    ISSN (online) 1758-3012
    ISSN 1758-3004
    DOI 10.1080/17583004.2021.1980110
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  9. Article ; Online: One-step purification/extraction method to access glyphosate, glufosinate, and their metabolites in natural waters.

    Vu, Cam Tu / Le, Phuong Thu / Chu, Dinh Binh / Bui, Van Hoi / Phung, Thi Lan Anh / Nguyen Le, Hoang Yen / Labanowski, Jérôme / Mondamert, Leslie / Herrmann, Marine / Behra, Philippe

    Journal of chromatography. A

    2021  Volume 1649, Page(s) 462188

    Abstract: A new green method for trace level quantification of four herbicides, glyphosate (GLYP), glufosinate (GLUF), and their main metabolites, aminomethylphosphonic acid (AMPA) and 3-(methyl-phosphinico)-propionic acid (MPPA), was developed. The purification ... ...

    Abstract A new green method for trace level quantification of four herbicides, glyphosate (GLYP), glufosinate (GLUF), and their main metabolites, aminomethylphosphonic acid (AMPA) and 3-(methyl-phosphinico)-propionic acid (MPPA), was developed. The purification step without any derivatization was conducted by solid-phase extraction using Chelex-100 resin in the Fe (III) form, followed by elution with 5% NH
    MeSH term(s) Aminobutyrates/analysis ; Aminobutyrates/isolation & purification ; Chromatography, High Pressure Liquid ; Fresh Water/chemistry ; Glycine/analogs & derivatives ; Glycine/analysis ; Glycine/isolation & purification ; Herbicides/analysis ; Herbicides/isolation & purification ; Organophosphonates/analysis ; Organophosphonates/isolation & purification ; Solid Phase Extraction/methods ; Tandem Mass Spectrometry ; Water Pollutants, Chemical/analysis ; Water Pollutants, Chemical/isolation & purification ; Glyphosate
    Chemical Substances Aminobutyrates ; Herbicides ; Organophosphonates ; Water Pollutants, Chemical ; phosphinothricin (51276-47-2) ; aminomethylphosphonic acid (AMPA) (90825O5C1U) ; Glycine (TE7660XO1C)
    Language English
    Publishing date 2021-05-06
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1171488-8
    ISSN 1873-3778 ; 0021-9673
    ISSN (online) 1873-3778
    ISSN 0021-9673
    DOI 10.1016/j.chroma.2021.462188
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  10. Article: Determination of Pharmaceutical Residues by UPLC-MS/MS Method: Validation and Application on Surface Water and Hospital Wastewater

    Van Hoi, Bui / Vu, Cam-Tu / Phung-Thi, Lan-Anh / Thi Nguyen, Thao / Nguyen, Phuong Thanh / Mai, Huong / Le, Phuong-Thu / Nguyen, Thanh-Hien / Thanh Duong, Dao / Nguyen Thi, Hue / Le-Van, Dung / Chu, Dinh Binh

    Journal of Analytical Methods in Chemistry (Online). 2021 Jan. 9, v. 2021

    2021  

    Abstract: In this study, an analytical method for the simultaneous determination of 7 major pharmaceutical residues in Vietnam, namely, carbamazepine, ciprofloxacin, ofloxacin, ketoprofen, paracetamol, sulfamethoxazole, and trimethoprim, in surface water and ... ...

    Abstract In this study, an analytical method for the simultaneous determination of 7 major pharmaceutical residues in Vietnam, namely, carbamazepine, ciprofloxacin, ofloxacin, ketoprofen, paracetamol, sulfamethoxazole, and trimethoprim, in surface water and hospital wastewater has been developed. The method includes enrichment and clean-up steps by solid phase extraction using mix-mode cation exchange, followed by identification and quantification using an ultrahigh-performance liquid chromatography and tandem mass spectrometry and employing electrospray ionization (UPLC-ESI-MS/MS). Seven target compounds were separated on the reversed phase column and detected in multiple reaction monitoring (MRM) mode within 6 minutes. The present study also optimized the operating parameters of the mass spectrometer to achieve the highest analytical signals for all target compounds. All characteristic parameters of the analytical method were investigated, including linearity range, limit of detection, limit of quantification, precision, and accuracy. The important parameter in UPLC-ESI-MS/MS, matrix effect, was assessed and implemented via preextraction and postextraction spiking experiments. The overall recoveries of all target compounds were in the ranges from 55% to 109% and 56 % to 115% for surface water and hospital wastewater, respectively. Detection limits for surface water and hospital wastewater were 0.005–0.015 µg L⁻¹ and 0.014–0.123 µg L⁻¹, respectively. The sensitivity of the developed method was allowed for determination of target compounds at trace level in environmental water samples. The in-house validation of the developed method was performed by spiking experiment in both the surface water and hospital wastewater matrix. The method was then applied to analyze several surface water and hospital wastewater samples taken from West Lake and some hospitals in Vietnam, where the level of these pharmaceutical product residues was still missed. Sulfamethoxazole was present at a high detection frequency in both surface water (33% of analyzed samples) and hospital wastewater (81% of analyzed samples) samples.
    Keywords accuracy ; acetaminophen ; cation exchange ; ciprofloxacin ; detection limit ; drug residues ; electrospray ionization mass spectrometry ; frequency ; hospitals ; ketoprofen ; lakes ; monitoring ; ofloxacin ; precision ; sampling ; solid phase extraction ; spectrometers ; sulfamethoxazole ; surface water ; tandem mass spectrometry ; trimethoprim ; ultra-performance liquid chromatography ; wastewater ; Vietnam
    Language English
    Dates of publication 2021-0109
    Publishing place Hindawi
    Document type Article
    Note NAL-light
    ZDB-ID 2654178-6
    ISSN 2090-8873 ; 2090-8865
    ISSN (online) 2090-8873
    ISSN 2090-8865
    DOI 10.1155/2021/6628285
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