Sustainable Nanocarbons as Potential Sensor for Safe Water

Tripathi, Kumud Malika; Singh, Anupriya; Myung, Yusik; Kim, Tae Young; Sonkar, Sumit Kumar

doi:10.1002/9781119323655.ch5

Cited by 7 publications

(3 citation statements)

References 122 publications

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“…When plants experiences toxic Cd, food chains are also probably affected by it, which may further lead to several human health problems such as renal failure, osteoporosis, liver cirrhosis, and Itai-Itai diseases [7][8][9][10][11]. It inhibits growth; activates or inhibits enzymes; affects water balance and ion transport; interferes with chlorophyll biosynthesis; inhibits various enzymes involved in the Calvin cycle; disrupts the evolution of O 2 over photosystem II (PSII); affects the transfer of electrons between PSI and PSII; and inhibits the activity of a variety of enzymes including carbonic anhydrase, NADP + glyceraldehyde-3-phosphate dehydrogenase, phosphoenolpyruvate carboxylase, ribulose-1,5-bisphosphate carboxylase oxygenase, fructose bis-phosphatase, and fructose-6phosphate kinase [12,13]. Therefore, different types of changes can be observed in plant bodies due to Cd toxicity, including morphological [14], physiological, and biochemical [15] and photochemical changes [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Cadmium-Tolerant Plant Growth-Promoting Bacteria Curtobacterium oceanosedimentum Improves Growth Attributes and Strengthens Antioxidant System in Chili (Capsicum frutescens)

Patel

Al-Keridis

et al. 2022

Sustainability

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The remediation of potentially toxic element-polluted soils can be accomplished through the use of microbial and plant-assisted bioremediation. A total of 32 bacteria were isolated from soil samples contaminated with potentially toxic elements. The isolated bacterial strain DG-20 showed high tolerance to cadmium (up to 18 mM) and also showed bioaccumulative Cd removal properties, as demonstrated by atomic absorption spectroscopy studies. By sequencing the 16S rRNA gene, this strain was identified as Curtobacterium oceanosedimentum. Under stress and normal conditions, isolate DG-20 also produced a wide range of plant growth promoting traits, including ammonia production (51–73 µg/mL) and IAA production (116–183 µg/mL), alongside siderophore production and phosphate solubilization. Additionally, pot experiments were conducted to determine whether the strain could promote Chili growth when Cd salts are present. Over the control, bacterial colonization increased root and shoot lengths significantly up to 58% and 60%, respectively. Following inoculation with the Cd-tolerant strain, the plants also increased in both fresh and dry weight. In both the control and inoculated plants, Cd was accumulated more in roots than in shoots, indicating that Chili was phytostabilizing Cd levels. Besides improving the plant attributes, Cd-tolerant bacteria were also found to increase the amount of total chlorophyll, proline, total phenol, and ascorbic acid in the soil when added to the soil. These results suggest that the inoculant provides protection to plants from negative effects. The results of the present study predict that the combined properties of the tested strain in terms of Cd tolerance and plant growth promotion can be exploited for the purpose of the bioremediation of Cd, and for the improvement of Chili cultivation in soils contaminated with Cd.

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Section: Introductionmentioning

confidence: 99%

Cadmium-Tolerant Plant Growth-Promoting Bacteria Curtobacterium oceanosedimentum Improves Growth Attributes and Strengthens Antioxidant System in Chili (Capsicum frutescens)

Patel

Al-Keridis

et al. 2022

Sustainability

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“…CDs, in particular, have electron-accepting, electron-transfer, and electron-transport characteristics, making them ideal light-harvesting agents (5). CDs have mostly been employed as photocatalyst additives due to their electrontransfer and light-harvesting capabilities (6)(7)(8), but due to their poor photocatalytic activity under visible light, they have not been extensively investigated for visible-light-induced photocatalysis (8)(9)(10)(11)(12). Because of their non-toxic properties and simplicity of production, plant-based carbon nanotubes are generating a lot of scientific interest in various sensing modalities.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesized Fluorescent Nano-Carbon Derived from Indigofera Tinctora (L.) Leaf Extract for Sensing of Pb²⁺ Ions

Joseph¹

2022

ECS Trans.

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Plant-based synthesis of nanomaterials is a more reliable method since it is easy, quick, and environmentally friendly, and it does not require any specific conditions, unlike other methods. For the first time, we report the sensing of metal ions using a fluorescent nano-carbon material via a plant-based synthesis from the medicinal plant, Indigofera tinctora (L.) (IBLH). This nanomaterial from the leaf extract of IBLH was synthesized by hydrothermal assisted green synthesis method. The as-synthesized sample was characterized by various spectroscopic techniques for confirming the formation of nano-carbon material. Optical studies revealed that IBLH was influential in determining toxic heavy metal ions (Pb2+). Detection of Pb2+ was observed from a range of 1M to as low as 1nM using IBLH as the probe. Stern-Volmer plot exhibits the progressive detection of the metal ion, proving that the IBLH nano-carbon material is capable of progressive sensing of various heavy metal ions.

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“…Sensitive detection of other metal ions like Aluminium has also been explored and its efficacy in presence of other metal ions with water-soluble onion-like carbon nanoparticles (wsCNOs) was reported [29]. Various nano carbon based sensors having substantial potential in detection of toxins, microbes, heavy metal ions, inorganic and organic pollutants in water were reviewd recently [30]. α-FeOOH nanoparticles have also been used to extract Arsenic from contaminated water [31].…”

Section: Introductionmentioning

confidence: 99%

Nanoparticle-based ‘turn-on’ scattering and post-sample fluorescence for ultrasensitive detection of water pollution in wider window

et al. 2020

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Ultrasensitive detection of heavy metal ions in available water around us is a great challenge for scientists since long time. We developed an optical technique that combines Rayleigh scattering of UV light (365 nm) and post-sample fluorescence detection from colloidal silver (Ag) nanoparticles (NPs) having a surface plasmon resonance (SPR) band at 420 nm. The efficacy of the technique is tested by the detection of several model toxic ions, including mercury, lead, and methylmercury in aqueous media. The light scattering from the Hg-included/ inflated Ag NPs at 395 nm was observed to saturate the light sensor even with ppm-order concentrations of Hg ions in the water sample. However, the pollutant is not detected at lower concentrations at this wavelength. Instead, the fluorescence of a high-pass filter (cutoff at 400 nm) at 520 nm is applied to detect pollutant concentrations of up to several hundreds of ppm in the water sample. We also detected lead and methylmercury as model pollutants in aqueous media and validated the efficacy of our strategy. Finally, we report the development of a working prototype based on the strategy developed for efficient detection of pollutants in drinking/agricultural water.

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Sustainable Nanocarbons as Potential Sensor for Safe Water

Cited by 7 publications

References 122 publications

Cadmium-Tolerant Plant Growth-Promoting Bacteria Curtobacterium oceanosedimentum Improves Growth Attributes and Strengthens Antioxidant System in Chili (Capsicum frutescens)

Cadmium-Tolerant Plant Growth-Promoting Bacteria Curtobacterium oceanosedimentum Improves Growth Attributes and Strengthens Antioxidant System in Chili (Capsicum frutescens)

Green Synthesized Fluorescent Nano-Carbon Derived from Indigofera Tinctora (L.) Leaf Extract for Sensing of Pb²⁺ Ions

Nanoparticle-based ‘turn-on’ scattering and post-sample fluorescence for ultrasensitive detection of water pollution in wider window

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Sustainable Nanocarbons as Potential Sensor for Safe Water

Cited by 7 publications

References 122 publications

Cadmium-Tolerant Plant Growth-Promoting Bacteria Curtobacterium oceanosedimentum Improves Growth Attributes and Strengthens Antioxidant System in Chili (Capsicum frutescens)

Cadmium-Tolerant Plant Growth-Promoting Bacteria Curtobacterium oceanosedimentum Improves Growth Attributes and Strengthens Antioxidant System in Chili (Capsicum frutescens)

Green Synthesized Fluorescent Nano-Carbon Derived from Indigofera Tinctora (L.) Leaf Extract for Sensing of Pb2+ Ions

Nanoparticle-based ‘turn-on’ scattering and post-sample fluorescence for ultrasensitive detection of water pollution in wider window

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Product

Resources

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Green Synthesized Fluorescent Nano-Carbon Derived from Indigofera Tinctora (L.) Leaf Extract for Sensing of Pb²⁺ Ions