Size-controlled synthesis of La and chitosan doped cobalt selenide nanostructures for catalytic and antibacterial activity with molecular docking analysis

Shaheen, Fatima; Imran, Muhammad; Haider, Ali; Shahzadi, Anum; Moeen, Sawaira; Ul-Hamid, Anwar; Ullah, Hameed; Khan, Sherdil; Alshomrany, Ali S.; Jeridi, Mouna; Al-Anazy, Murefah mana; Ikram, Muhammad

doi:10.1016/j.ijbiomac.2024.130096

Cited by 15 publications

(2 citation statements)

References 51 publications

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“…Several publications have emphasized the crucial need to eliminate and degrade azo dyes in the environment, particularly in water, which serves as a vital resource for all living organisms. Addressing this pressing issue involves employing three main categories of technologies aimed at removing azo dyes from the environment: chemical, physical, and biological methods [ 10 , 30 – 37 ]. However, the chemical and physical treatment approaches possess inherent limitations, including low efficiency, substantial sludge generation, high energy requirements, and significant costs [ 9 , 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

Exploring the decolorization efficiency and biodegradation mechanisms of different functional textile azo dyes by Streptomyces albidoflavus 3MGH

El Awady,

El-Shall,

Mohamed

et al. 2024

BMC Microbiol

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Efficiently mitigating and managing environmental pollution caused by the improper disposal of dyes and effluents from the textile industry is of great importance. This study evaluated the effectiveness of Streptomyces albidoflavus 3MGH in decolorizing and degrading three different azo dyes, namely Reactive Orange 122 (RO 122), Direct Blue 15 (DB 15), and Direct Black 38 (DB 38). Various analytical techniques, such as Fourier Transform Infrared (FTIR) spectroscopy, High-Performance Liquid Chromatography (HPLC), and Gas Chromatography-Mass Spectrometry (GC-MS) were used to analyze the degraded byproducts of the dyes. S. albidoflavus 3MGH demonstrated a strong capability to decolorize RO 122, DB 15, and DB 38, achieving up to 60.74%, 61.38%, and 53.43% decolorization within 5 days at a concentration of 0.3 g/L, respectively. The optimal conditions for the maximum decolorization of these azo dyes were found to be a temperature of 35 °C, a pH of 6, sucrose as a carbon source, and beef extract as a nitrogen source. Additionally, after optimization of the decolorization process, treatment with S. albidoflavus 3MGH resulted in significant reductions of 94.4%, 86.3%, and 68.2% in the total organic carbon of RO 122, DB 15, and DB 38, respectively. After the treatment process, we found the specific activity of the laccase enzyme, one of the mediating enzymes of the degradation mechanism, to be 5.96 U/mg. FT-IR spectroscopy analysis of the degraded metabolites showed specific changes and shifts in peaks compared to the control samples. GC-MS analysis revealed the presence of metabolites such as benzene, biphenyl, and naphthalene derivatives. Overall, this study demonstrated the potential of S. albidoflavus 3MGH for the effective decolorization and degradation of different azo dyes. The findings were validated through various analytical techniques, shedding light on the biodegradation mechanism employed by this strain.

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Section: Introductionmentioning

confidence: 99%

Exploring the decolorization efficiency and biodegradation mechanisms of different functional textile azo dyes by Streptomyces albidoflavus 3MGH

El Awady,

El-Shall,

Mohamed

et al. 2024

BMC Microbiol

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“…Approximately 17–20% of global pollutants can be attributed to the textile industry, according to the World Bank estimates 4 . The persistent nature of these pollutants stems from the stability of water-soluble Azo dyes; that would result in prolonged environmental impacts 5 , 6 . Methyl Orange (MO) belongs to the azo dye family; it is known to be carcinogenic organic substance.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of silver doped manganese oxide nanocomposite with superior photocatalytic and antimicrobial activity under visible spectrum

Elbasuney,

El-Khawaga,

Elsayed

et al. 2024

Sci Rep

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Water pollution and antimicrobial resistance (AMR) have become two global threats; 80% of diseases and 50% of child deaths are due to poor water quality. In this study, hydrothermal processing was employed to manufacture manganese oxide nanorods. Silver dopant was deposited on the surface of manganese oxide. XRD diffractogram confirmed the facile synthesis of Ag/Mn2O3 nanocomposite. XPS survey analysis demonstrated silver content of 9.43 atom %. Photocatalytic measurements demonstrated the outstanding efficiency of the Ag-Mn2O3 compared to virgin oxide particles under visible radiation. Degradation efficiencies Mn2O3 and Ag/Mn2O3 on methyl orange (MO) dye was found to be 53% and 85% under visible spectrum. Silver dopant was found to decrease the binding energy of valence electrons; this action could support electron–hole pair generation under visible spectrum and could promote catalytic performance. Ag/Mn2O3 NPs demonstrated most effective performance (95% removal efficiency) at pH 3; this could be ascribed to the electrostatic attraction between positively charged catalyst and the negatively charged MO. Ag/Mn2O3 demonstrated enhanced antibacterial activity against Gram-positive Staphylococcus aureus (S. aureus) (19 mm ZOI), and Gram-negative Escherichiacoli (E. coli) (22 mm ZOI) respectively; the developed nanocomposite demonstrated advanced anti-film activity with inhibition percentage of 95.5% against E. coli followed by 89.5% against S. aureus.

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Designing of highly efficient chitosan-based bimetallic Zr–Fe, three-dimensional bio-architecture for mitigating fluoride from water

Shukla,

Gupta,

Shaji

et al. 2024

Biomass Conv. Bioref.

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Size-controlled synthesis of La and chitosan doped cobalt selenide nanostructures for catalytic and antibacterial activity with molecular docking analysis

Cited by 15 publications

References 51 publications

Exploring the decolorization efficiency and biodegradation mechanisms of different functional textile azo dyes by Streptomyces albidoflavus 3MGH

Exploring the decolorization efficiency and biodegradation mechanisms of different functional textile azo dyes by Streptomyces albidoflavus 3MGH

Facile synthesis of silver doped manganese oxide nanocomposite with superior photocatalytic and antimicrobial activity under visible spectrum

Designing of highly efficient chitosan-based bimetallic Zr–Fe, three-dimensional bio-architecture for mitigating fluoride from water

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