Characterization of Fungal Melanins from Black Stains on Paper Artefacts DOI Creative Commons

D. C. Melo,

Tiago G. Paiva, João A. Lopes

et al.

Heritage, Journal Year: 2022, Volume and Issue: 5(4), P. 3049 - 3065

Published: Oct. 11, 2022

Melanins play a fundamental role in the biology and ecology of several fungal species. Unfortunately, this group amorphous macromolecules also severely (and most times irreversibly) stains cultural heritage objects. Despite efforts made throughout years, knowledge chemical composition structure melanins is still insufficient, which hampers task safely cleaning these colourants from materials targeted way without causing further deterioration. This work aimed therefore to contribute towards enlightening characteristics three fungi that are common paper colonizers: Aspergillus niger, Chaetomium globosum Cladosporium cladosporioides. The extracted were characterized by FTIR, Raman, UV-vis, Solid-State NMR MALDI-TOF MS spectroscopies effect inhibitors DHN-melanin DOPA-melanin pathways on colony pigmentation growth was evaluated. Although all show predominantly aromatic with carbonyl phenolic groups, some differences between can be highlighted. obtained Ch. Cl. cladosporioides exhibited similar structures both presented characteristics, while A. niger’s revealed more complex ordered structure, higher prevalence highly conjugated carbonyls than others, besides additional presence yellow/green component. These conclusions cannot overlooked selecting methodologies for melanin materials.

Language: Английский

Antibacterial and Antibiofouling Activities of Carbon Polymerized Dots/Polyurethane and C60/Polyurethane Composite Films DOI Creative Commons
Zoran Marković,

Milica D. Budimir Filimonović,

Dušan Milivojević

et al.

Journal of Functional Biomaterials, Journal Year: 2024, Volume and Issue: 15(3), P. 73 - 73

Published: March 17, 2024

The cost of treatment antibiotic-resistant pathogens is on the level tens billions dollars at moment. It special interest to reduce or solve this problem using antimicrobial coatings, especially in hospitals other healthcare facilities. bacteria can transfer from medical staff contaminated surfaces patients. In paper, we focused our attention antibacterial and antibiofouling activities two types photodynamic polyurethane composite films doped with carbon polymerized dots (CPDs) fullerene C60. Detailed atomic force, electrostatic force viscoelastic microscopy revealed topology, nanoelectrical nanomechanical properties used fillers composites. A relationship between electronic structure nanocarbon composites was established. Thorough spectroscopic analysis reactive oxygen species (ROS) generation conducted for both films, it found that them were potent agents against nosocomial (Klebsiela pneumoniae, Proteus mirabilis, Salmonela enterica, Enterococcus faecalis, epidermis Pseudomonas aeruginosa). Antibiofouling testing indicated CPDs/PU eradicated almost completely biofilms aeruginosa Staphylococcus aureus about 50% Escherichia coli biofilms.

Language: Английский

Citations

12

Kinetics and mechanism of sulfate radical-and hydroxyl radical-induced disinfection of bacteria and fungal spores by transition metal ions-activated peroxymonosulfate DOI

Gehui Wu,

Jingyi Wang, Qiqi Wan

et al.

Water Research, Journal Year: 2023, Volume and Issue: 243, P. 120378 - 120378

Published: July 17, 2023

Language: Английский

Citations

19

Advanced oxidation process/coagulation coupled with membrane distillation (AOP/Coag-MD) for efficient ammonia recovery: Elucidating biofouling control performance and mechanism DOI
Wucheng Ma,

Rui Han,

Wei Zhang

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 469, P. 134093 - 134093

Published: March 20, 2024

Language: Английский

Citations

7

Application of chlorine dioxide and its disinfection mechanism DOI
Yu Jiang,

Yina Qiao,

Riya Jin

et al.

Archives of Microbiology, Journal Year: 2024, Volume and Issue: 206(10)

Published: Sept. 10, 2024

Language: Английский

Citations

6

Occurrence and control of fungi in water: New challenges in biological risk and safety assurance DOI
Qiqi Wan, Gang Wen, Yuhong Cui

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 860, P. 160536 - 160536

Published: Nov. 26, 2022

Language: Английский

Citations

22

The aggregation characteristics of Aspergillus spores under various conditions and the impact on LPUV inactivation: Comparisons with chlorine-based disinfection DOI
Zhenghong Zhang, Huan Zhang,

Gehui Wu

et al.

Water Research, Journal Year: 2024, Volume and Issue: 253, P. 121323 - 121323

Published: Feb. 15, 2024

Language: Английский

Citations

5

Formation of filamentous fungal biofilms in water and the transformation of resistance to chlor(am)ine disinfection DOI

Baochun Chang,

Qiqi Wan,

Gehui Wu

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 476, P. 135138 - 135138

Published: July 7, 2024

Language: Английский

Citations

5

Regenerating Spent Lithium-Ion Battery Cathodes as Dual-Functional Biocatalysts for Highly-Efficient Oxygen and Hydrogen Evolution Using Aspergillus niger Soluble Extracellular Polymers DOI
Ge Lin,

Yiyang Kang,

Guang Li

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(19), P. 7466 - 7477

Published: April 23, 2024

The lithium-ion battery market is rapidly expanding but lacks recycling for spent (SLIB) cathodes, overlooking their potential as valuable raw materials. Herein, we present a novel win–win bioregulation strategy to repurpose SLIB cathodes into dual-functional biocatalysts oxygen and hydrogen evolution reactions (OER HER) using Aspergillus niger soluble extracellular polymers. In the recycled cathode ink, 85% of cobalt has been regenerated catalysts. Simultaneously, materials such graphite cobalt, which have not regenerated, are separated stored. Integrating characterization theoretical calculations reveals that enhances hydrophilicity 70-Bio-Co/GOs enables biological nitrogen doping. Compared catalyst lacking bioregulation, observe 0.27 eV elevation in d-band center identify metallic-like electron distribution around Fermi level. Consequently, compared with other studies, 70-Bio-Co/GO exhibits slight superiority OER (η10 251 mV), HER 110 overall water splitting (25 mA cm–2 1.641 V) performance, along stability (98 h). Overall, investigated technology regenerating SLIBs.

Language: Английский

Citations

4

A facile strategy to develop highly stable antifouling NF membranes with chlorine resistance based on polyamide-sulfonamide active layer DOI

Guangcun Qian,

Deliang Zhu,

Jiangnan Li

et al.

Journal of environmental chemical engineering, Journal Year: 2023, Volume and Issue: 11(3), P. 110146 - 110146

Published: May 17, 2023

Language: Английский

Citations

11

Research progress on fungi and their spore inactivation in different water bodies DOI Creative Commons

Fangyu Liang,

Yuanyuan Zhang

Desalination and Water Treatment, Journal Year: 2025, Volume and Issue: 321, P. 101007 - 101007

Published: Jan. 1, 2025

Language: Английский

Citations

0