Recent Advances in the Application of Bionanosensors for the Analysis of Heavy Metals in Aquatic Environments

Wu, Bin; Ga, Lu; Wang, Yong; Ai, Jun

doi:10.3390/molecules29010034

Cited by 3 publications

(2 citation statements)

References 135 publications

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“…The transducer translates the biological signals to optical or electrical signals via optical, physicochemical, or piezoelectric material (Nguyen et al 2019 ). Electrochemical and optical biosensors have been employed to detect and quantify metals, including Hg + , Pb 2+ , Zn 2+ , Cu 2+ , and Cd 2+ in water (Wu et al 2023 ). Advances in nanotechnology have further improved the performance of biosensors due to the numerous benefits of larger sensing equipment.…”

Section: Methodological Approachmentioning

confidence: 99%

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Advances in the integration of microalgal communities for biomonitoring of metal pollution in aquatic ecosystems of sub-Saharan Africa

Mulenga,

Monde,

Johnson

et al. 2024

Environ Sci Pollut Res

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This review elucidated the recent advances in integrating microalgal communities in monitoring metal pollution in aquatic ecosystems of sub-Saharan Africa (SSA). It also highlighted the potential of incorporating microalgae as bioindicators in emerging technologies, identified research gaps, and suggested directions for further research in biomonitoring of metal pollution. Reputable online scholarly databases were used to identify research articles published between January 2000 and June 2023 for synthesis. Results indicated that microalgae were integrated either individually or combined with other bioindicators, mainly macroinvertebrates, macrophytes, and fish, alongside physicochemical monitoring. There was a significantly low level of integration (< 1%) of microalgae for biomonitoring aquatic metal pollution in SSA compared to other geographical regions. Microalgal communities were employed to assess compliance (76%), in diagnosis (38%), and as early-warning systems (38%) of aquatic ecological health status. About 14% of biomonitoring studies integrated microalgal eDNA, while other technologies, such as remote sensing, artificial intelligence, and biosensors, are yet to be significantly incorporated. Nevertheless, there is potential for the aforementioned emerging technologies for monitoring aquatic metal pollution in SSA. Future monitoring in the region should also consider the standardisation and synchronisation of integrative biomonitoring and embrace the “Citizen Science” concept at national and regional scales. Graphical abstract

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Section: Methodological Approachmentioning

confidence: 99%

“…Biosensors and microalgae serve as complementary tools, offering different perspectives and capabilities. Biosensors enhance the detection and quantification of metal contaminants in real-time or near real-time, thereby allowing for rapid detection and tracking of metal pollution (Wu et al 2023 ).…”

Section: Methodological Approachmentioning

confidence: 99%

Advances in the integration of microalgal communities for biomonitoring of metal pollution in aquatic ecosystems of sub-Saharan Africa

Mulenga,

Monde,

Johnson

et al. 2024

Environ Sci Pollut Res

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Two-Dimensional Triazine Polymers as Recyclable Fluorescent Sensors to Detect and Remove Sub-nanomolar Hg(II) From Water

Salahvarzi,

Adeli,

Mehdipour

et al. 2024

ACS Appl. Polym. Mater.

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In this work, full triazine two-dimensional frameworks (2DC 3 N 3 ) were synthesized and used to detect metal ions in aqueous solutions. 2DC 3 N 3 showed excellent performance to sense Hg(II) with high selectivity (>96%) and was designed as a recyclable sensor for Hg(II) detection. 2DC 3 N 3 was synthesized using catalyst-free [2+2+2] cyclotrimerization of sodium cyanide and cyanuric chloride at ambient conditions. The as-prepared 2DC 3 N 3 sheets with several hundred micrometers lateral size exhibited strong excitation-dependent fluorescence with 63% quantum yield and maximum emission at 428 nm. The emission of 2DC 3 N 3 decreased with 14.74 × 10 3 L•mol −1 quenching constant (K SV ) upon interaction with Hg 2+ ions. This effect was used as a strong signal to detect Hg(II) with a 0.98 nM detection limit. The high Hg 2+ removal capacity of 2DC 3 N 3 was attributed to cooperative interactions of nitrogen atoms of 2DC 3 N 3 pores and Hg 2+ , as suggested by computational studies. Taking advantage of the straightforward synthesis of 2DC 3 N 3 and its selectivity, it can be used as an efficient platform for monitoring Hg 2+ in waste and drinking water.

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Potencial ficorremediador de algas altoandinas Mougeotia sp. y Spirogyra sp. (Charophyta)

Jara Peña,

Montoya Terreros,

Quispe oré

et al. 2024

LIL

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En el siglo XVIII, durante el virreinato del Perú, la mina Cerro de Pasco inició la explotación de plata y plomo, actividad que persiste hasta la actualidad y que continúa contaminando con metales pesados el suelo y las aguas de la cuenca del río San Juan, en el departamento de Pasco. Con el fin de analizar la eficacia de las algas verdes altoandinas Mougeotia sp. y Spirogyra sp. en la bioremoción de cobre y plomo, se recolectaron muestras de ambas especies en el río San Juan, y tras cultivarlas en medio de cultivo Chu 10. El estudio se realizó con un diseño experimental factorial de 3 x 3 x 2 (3 indican los tres tratamientos de cobre y de plomo, y 2 son las dos especies de algas verdes filamentosas), con 5 repeticiones por tratamiento. Los resultados mostraron tanto Mougeotia sp. y Spirogyra sp. con el tratamiento de 30 mg L-1 de plomo lograron las eficiencias de remoción más elevadas, del 97 % y 87,6 % de bioremoción de plomo, respectivamente. Ambas especies registraron una notable capacidad de bioremoción de plomo y cobre, empero con disminución significativa en su biomasa y en el contenido de clorofila a.

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Recent Advances in the Application of Bionanosensors for the Analysis of Heavy Metals in Aquatic Environments

Cited by 3 publications

References 135 publications

Advances in the integration of microalgal communities for biomonitoring of metal pollution in aquatic ecosystems of sub-Saharan Africa

Advances in the integration of microalgal communities for biomonitoring of metal pollution in aquatic ecosystems of sub-Saharan Africa

Two-Dimensional Triazine Polymers as Recyclable Fluorescent Sensors to Detect and Remove Sub-nanomolar Hg(II) From Water

Potencial ficorremediador de algas altoandinas Mougeotia sp. y Spirogyra sp. (Charophyta)

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