Carbon quantum dots (CQD) fabricated from Exiguobacterium sp. VK2 exopolysaccharide (EPS) using hydrothermal reaction and its biodiesel applications

Kalpana, Ramaraju; Vignesh, Nagamalai Sakthi; Vinothini, Kandasamy; Rajan, Mariappan; Ashokkumar, Balasubramaniem; Brindhadevi, Kathirvel; Lan, Nguyễn Thúy; Varalakshmi, Perumal

doi:10.1016/j.fuel.2022.126426

Cited by 18 publications

(6 citation statements)

References 57 publications

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“…34 The peak at 1630 cm −1 could be responsible for the stretching of CC and CO. The intense signal at 1350 cm −1 could be related to the stretching vibration of the aromatic ring, which is in agreement with the XRD spectra showing the amorphous structure and the band at 1370 cm −1 is related to the bending vibration peak of the aminic group derived probably from the protein components or to the Environmental Science: Nano Paper vibrations of C-O-C. 35 The small band appearing at 1240 cm −1 corresponds to sp 3 hybridized carbon atoms. According to the literature, 36,37 the strong band around 1060 cm −1 can be associated with the β-glycosidic bond of cellulose and hemicellulose, which is much more intense in hydrochar as the subsequent treatments with the acid cause the hydrolysis of the polysaccharides.…”

Section: Characterization Datasupporting

confidence: 84%

Waste-derived carbon nanodots for fluorimetric and simultaneous electrochemical detection of heavy metals in water

Bressi,

Celesti,

Ferlazzo

et al. 2024

Environ. Sci.: Nano

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Section: Characterization Datasupporting

confidence: 84%

Waste-derived carbon nanodots for fluorimetric and simultaneous electrochemical detection of heavy metals in water

Bressi,

Celesti,

Ferlazzo

et al. 2024

Environ. Sci.: Nano

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“…Similarly, at pH 6 and 40 °C, Exiguobacterium sp. VK1 97.61% decomposed Malachite Green dye (684.38 mg/g) in 30 minutes through the production of exopolysaccharide [51].…”

Section: Plant Growth Promotion and Eps Productionmentioning

confidence: 99%

Biodecolorization of Reactive Red 120 Azo Dye by Metal-Ion Tolerant Lysinibacilluscapsici PB300 (T) Bacteria Bacteria and its Application Potential in Textile Effluents Treatment

Lata,

Singh,

Ambade

et al. 2024

Preprint

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Currently, the textile industry is among the most rapidly expanding areas of the economy and is an important source of water pollution. There are many efficient chemical and physical methods for treating textile effluent, but they produce secondary pollutants. Therefore, there is a need to manage the textile waste wastewater. The potential EPS-producing and plant growth-promoting rhizobacteria Lysinibacillus capsici PB300 (T) bacteria strain has been isolated from the bark borer-affected Peltophorum pterocarpum plant and has been determined to be effective in > 95 decolorizing Reactive Red 120, and other azo dyes such as AB11385%, orange II 94.62%, Congo red 94.62%, phenol red 94.54%, and mixtures of azo dyes 81.66%. Physico-chemical factors were optimized manually, including Taguchi design. EPS production, PGPR strain, and fabric discoloration of L. capsici were qualitatively studied. The FTIR, GC-MS, and UV absorbance studies also confirmed that the dye had been broken into its amines. Research findings using enzyme assays have shown that the bacteria Lysinibacillus capsici PB300 (T) can utilize laccase and manganese peroxidase and are capable of degrading dyes significantly. According to this work, immobilised L. capsici cells and the studied four bacterial consortiums, Lysinibacillus capsici PB300 (T), Alcaligenes faecalis subsp. Phenolicus DSM 16503 (T), Acinetobacterbaumanni ATCC 19606 (T), and Pseudomonasaeruginosa JCM 5962 may be employed to degrade RR120 effectively, and it is concluded that L. capsici PB300 (T) bacteria is significantly efficient in textile effluent treatment.

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“…A rich source resource and numerous synthetic strategies ensure their great diversity. Features common to all forms of CD are lack of toxicity, well-defined mechanical properties, easy surface functionalization, stability at high temperatures, excellent electrical conductivity, barrier properties, as well as antimicrobial and antioxidant activity [22][23][24]. However, most applications of carbon dots are related to their ability to emit and absorb light.…”

Section: Carbon Dotsmentioning

confidence: 99%

Carbon Dots—Types, Obtaining and Application in Biotechnology and Food Technology

Szczepankowska,

Khachatryan,

Khachatryan

et al. 2023

IJMS

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Materials with a “nano” structure are increasingly used in medicine and biotechnology as drug delivery systems, bioimaging agents or biosensors in the monitoring of toxic substances, heavy metals and environmental variations. Furthermore, in the food industry, they have found applications as detectors of food adulteration, microbial contamination and even in packaging for monitoring product freshness. Carbon dots (CDs) as materials with broad as well as unprecedented possibilities could revolutionize the economy, if only their synthesis was based on low-cost natural sources. So far, a number of studies point to the positive possibilities of obtaining CDs from natural sources. This review describes the types of carbon dots and the most important methods of obtaining them. It also focuses on presenting the potential application of carbon dots in biotechnology and food technology.

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Carbon quantum dots (CQD) fabricated from Exiguobacterium sp. VK2 exopolysaccharide (EPS) using hydrothermal reaction and its biodiesel applications

Cited by 18 publications

References 57 publications

Waste-derived carbon nanodots for fluorimetric and simultaneous electrochemical detection of heavy metals in water

Waste-derived carbon nanodots for fluorimetric and simultaneous electrochemical detection of heavy metals in water

Biodecolorization of Reactive Red 120 Azo Dye by Metal-Ion Tolerant Lysinibacilluscapsici PB300 (T) Bacteria Bacteria and its Application Potential in Textile Effluents Treatment

Carbon Dots—Types, Obtaining and Application in Biotechnology and Food Technology

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