Bacteria and archaea on Earth and their abundance in biofilms

Nature Reviews Microbiology, Journal Year: 2019, Volume and Issue: 17(4), P. 247 - 260

Published: Feb. 13, 2019

Language: Английский

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Well-Defined Gold Nanorod/Polymer Hybrid Coating with Inherent Antifouling and Photothermal Bactericidal Properties for Treating an Infected Hernia

ACS Nano, Journal Year: 2020, Volume and Issue: 14(2), P. 2265 - 2275

Published: Feb. 4, 2020

Biomedical device-associated infection (BAI) is a great challenge in modern clinical medicine. Therefore, developing efficient antibacterial materials significantly important and meaningful for the improvement of medical treatment people's health. In present work, we developed strategy surface functionalization multifunctional applications. A functionalized polyurethane (PU, widely used biomedical material hernia repairing) (PU-Au-PEG) with inherent antifouling photothermal bactericidal properties was readily prepared based on near-infrared (NIR)-responsive organic/inorganic hybrid coating which consists gold nanorods (Au NRs) polyethylene glycol (PEG). The PU-Au-PEG showed high efficiency to resist adhesion bacteria exhibited effective under 808 nm NIR irradiation, especially against multidrug-resistant bacteria. Furthermore, could inhibit biofilm formation long term. biocompatibility also proved by cytotoxicity hemolysis tests. vivo were first verified subcutaneous implantation animal model. Then, anti-infection performance scenario studied an infected results experiment studies demonstrated excellent performances PU-Au-PEG. work provides facile promising approach develop devices.

Language: Английский

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Three faces of biofilms: a microbial lifestyle, a nascent multicellular organism, and an incubator for diversity

npj Biofilms and Microbiomes, Journal Year: 2021, Volume and Issue: 7(1)

Published: Nov. 10, 2021

Abstract Biofilms are organised heterogeneous assemblages of microbial cells that encased within a self-produced matrix. Current estimates suggest up to 80% bacterial and archaeal reside in biofilms. Since biofilms the main mode life, understanding their biology functions is critical, especially as controlling biofilm growth essential industrial, infrastructure medical contexts. Here we discuss both collections individual cells, multicellular biological individuals, introduce concept unique incubators diversity for world.

Language: Английский

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Advances in direct interspecies electron transfer and conductive materials: Electron flux, organic degradation and microbial interaction

Biotechnology Advances, Journal Year: 2019, Volume and Issue: 37(8), P. 107443 - 107443

Published: Aug. 30, 2019

Language: Английский

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Nanohole-boosted electron transport between nanomaterials and bacteria as a concept for nano–bio interactions

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Jan. 21, 2021

Abstract Biofilms contribute to bacterial infection and drug resistance are a serious threat global human health. Antibacterial nanomaterials have attracted considerable attention, but the inhibition of biofilms remains major challenge. Herein, we propose nanohole-boosted electron transport (NBET) antibiofilm concept. Unlike known antibacterial mechanisms (e.g., reactive oxygen species production cell membrane damage), nanoholes with atomic vacancies serve as electronic donors receptors, respectively, thus boost high capacity between biofilms. Electron effectively destroys critical components (proteins, intercellularly adhered polysaccharides extracellular DNA) biofilms, also significantly downregulate expression genes related biofilm formation. The anti-infection is thoroughly verified both in vitro (human cells) vivo (rat ocular mouse intestinal models), nanohole-enabled found be highly biocompatible. Importantly, compared typical antibiotics, nonresistant thereby exhibit potential for use various applications. As proof-of-principle demonstration, these findings hold promise NBET treatments pathogenic antibiotic resistance.

Language: Английский

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Photodynamic therapy: Innovative approaches for antibacterial and anticancer treatments

Medicinal Research Reviews, Journal Year: 2023, Volume and Issue: 43(4), P. 717 - 774

Published: Feb. 9, 2023

Abstract Photodynamic therapy is an alternative treatment mainly for cancer but also bacterial infections. This dates back to 1900 when a German medical school graduate Oscar Raab found photodynamic effect while doing research his doctoral dissertation with Professor Hermann von Tappeiner. Unexpectedly, revealed that the toxicity of acridine on paramecium depends intensity light in laboratory. therefore based administration photosensitizer subsequent irradiation within absorption maxima this substance followed by reactive oxygen species formation and finally cell death. Although not novelty, there endeavor various modifications therapy. For example, selectivity efficiency photosensitizer, as well types sources are still being modified improve final results The main aim review summarize anticancer antibacterial modifications, namely compounds, approaches, techniques, enhance effectiveness

Language: Английский

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Archaea Biotechnology

Biotechnology Advances, Journal Year: 2020, Volume and Issue: 47, P. 107668 - 107668

Published: Dec. 1, 2020

Archaea are a domain of prokaryotic organisms with intriguing physiological characteristics and ecological importance. In Microbial Biotechnology, archaea historically overshadowed by bacteria eukaryotes in terms public awareness, industrial application, scientific studies, although their biochemical properties show vast potential for wide range biotechnological applications. Today, the majority microbial cell factories utilized production value-added high value compounds on an scale bacterial, fungal or algae based. Nevertheless, becoming ever more relevant biotechnology as cultivation genetic systems improve. Some main advantages archaeal ability to cultivate many these often extremophilic under non-sterile conditions, utilize inexpensive feedstocks toxic other microorganisms, thus drastically reducing costs. Currently, only commercially available products bacterioruberin, squalene, bacteriorhodopsin diether-/tetraether-lipids, all which produced utilizing halophiles. Other products, such carotenoids biohydrogen, well polyhydroxyalkanoates methane early advanced development stages, respectively. The aim this review is provide overview current state Biotechnology describing actual research utilization factories, role future sustainable bioprocessing, illustrate potential.

Language: Английский

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Effects of biochar parent material and microbial pre-loading in biochar-amended high-solids anaerobic digestion

Bioresource Technology, Journal Year: 2019, Volume and Issue: 298, P. 122457 - 122457

Published: Nov. 27, 2019

Language: Английский

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Hybrid Plasmonic Nanodumbbells Engineering for Multi-Intensified Second Near-Infrared Light Induced Photodynamic Therapy

ACS Nano, Journal Year: 2021, Volume and Issue: 15(5), P. 8694 - 8705

Published: May 7, 2021

Photodynamic therapy (PDT) has shown great potential in infection treatment. However, the shallow depth of short wavelength light and low reactive oxygen species (ROS) production hinder its development. A strategy that can achieve a second near-infrared (NIR-II) is long induced multi-intensified antibacterial PDT most critical. Herein, hybrid plasmonic Au/CdSexSy with precise Ag doping (ACA) nanodumbbells are rationally designed for ideal NIR-II PDT. Plasmonic Au nanorods extend photocatalytic activity ACA to regions, which provides basis More importantly, be realized by following creativities: (i) elaborate design as-synthesized allows electron holes redistributed different regions simultaneously, (ii) efficient hot-electrons injection benefits from ratio tailoring anions Se S, (iii) dopant level inhibiting combination holes. The create effective separation holes, convenience ROS inhibition bacteria biofilms. As result, comparably, our well-defined generate about 40-fold superoxide radicals (·O2-) more hydroxyl (·OH). Therefore, MIC value lower than 1/16 core-shell ACA. In vivo results further demonstrate exhibit excellent efficacy.

Language: Английский

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Rapid formation of granules coupling n-DAMO and anammox microorganisms to remove nitrogen

Water Research, Journal Year: 2021, Volume and Issue: 194, P. 116963 - 116963

Published: Feb. 23, 2021

Language: Английский

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