Dimensional Design and Core–Shell Engineering of Nanomaterials for Electromagnetic Wave Absorption

Advanced Materials, Journal Year: 2021, Volume and Issue: 34(11)

Published: Nov. 10, 2021

Abstract Electromagnetic (EM) wave absorption materials possess exceptionally high EM energy loss efficiency. With vigorous developments in nanotechnology, such have exhibited numerous advanced functions, including radiation prevention and antiradar stealth. To achieve improved performance multifunctionality, the elaborate control of microstructures has become an attractive research direction. By designing them as core–shell structures with different dimensions, combined effects, interfacial polarization, conduction networks, magnetic coupling, magnetic–dielectric synergy, can significantly enhance performance. Herein, advances low‐dimensional are outlined a selection most remarkable examples is discussed. The derived key information regarding dimensional design, structural engineering, performance, structure–function relationship comprehensively summarized. Moreover, investigation cutting‐edge mechanisms given particular attention. Additional applications, oxidation resistance self‐cleaning also introduced. Finally, insight into what may be expected from this rapidly expanding field future challenges presented.

Language: Английский

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Biomaterial-based antimicrobial therapies for the treatment of bacterial infections

Nature Reviews Materials, Journal Year: 2021, Volume and Issue: 7(1), P. 39 - 54

Published: Sept. 15, 2021

Language: Английский

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Rough Carbon–Iron Oxide Nanohybrids for Near-Infrared-II Light-Responsive Synergistic Antibacterial Therapy

ACS Nano, Journal Year: 2021, Volume and Issue: 15(4), P. 7482 - 7490

Published: April 15, 2021

Infections caused by multidrug resistant bacteria are still a serious threat to human health. It is of great significance explore effective alternative antibacterial strategies. Herein, carbon–iron oxide nanohybrids with rough surfaces (RCF) developed for NIR-II light-responsive synergistic therapy. RCF excellent photothermal property and peroxidase-like activity could realize therapy (PTT)/chemodynamic (CDT) in the biowindow improved penetration depth low power density. More importantly, shows increased bacterial adhesion, thereby benefiting both CDT PTT through interaction between bacteria. In vitro experiments demonstrate broad-spectrum effect against Gram-negative Escherichia coli (E. coli), Gram-positive Staphylococcus aureus (S. aureus), methicillin-resistant (MRSA). addition, satisfactory biocompatibility makes promising agent. Notably, performances vivo be achieved employing rat wound model MRSA infection. The current study proposes facile strategy construct agents practical applications rational design composition morphology. density light responsive holds potential treatment drug-resistant infections.

Language: Английский

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Graphitic carbon nitride-based materials for photocatalytic antibacterial application

Materials Science and Engineering R Reports, Journal Year: 2021, Volume and Issue: 145, P. 100610 - 100610

Published: March 30, 2021

Language: Английский

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Single-Atom Catalysis for Efficient Sonodynamic Therapy of Methicillin-Resistant Staphylococcus aureus-Infected Osteomyelitis

ACS Nano, Journal Year: 2021, Volume and Issue: 15(6), P. 10628 - 10639

Published: June 4, 2021

Osteomyelitis, as a severe bone disease caused by bacterial infection, can result in lifelong disability or fatal sepsis. Considering that the infection is stubborn and deep-sited tissue, situ rapid treatments for osteomyelitis remain significant challenge. Herein, we prepare an ultrasound (US)-activated single-atom catalyst consists of Au nanorod (NRs)-actuated single-atom-doped porphyrin metal–organic framework (HNTM-Pt@Au) red cell membrane (RBC), which efficiently treat methicillin-resistant Staphylococcus aureus (MRSA)-infected under US. Besides outstanding performance field photocatalysis, find single atoms (such Pt, Au, Cu) also improve sonocatalytic ability sonosensitizer. Due to strong electron-trapping oxygen adsorption capacity, Pt atom endows RBC-HNTM-Pt@Au with excellent activity. It shows antibacterial efficiency 99.9% toward MRSA 15 min US irradiation. Meanwhile, be propelled directionally thus dynamically neutralize secreted toxins. The MRSA-infected rat tibia was successfully treated, negligible loss, reduced inflammation response, great biocompatibility. This work presents efficient sonodynamic therapy treatment deep tissue infections via multifunctional catalyst.

Language: Английский

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Recent Progress in Photocatalytic Antibacterial

ACS Applied Bio Materials, Journal Year: 2021, Volume and Issue: 4(5), P. 3909 - 3936

Published: Jan. 7, 2021

Pathogens on wounds and infected tissues or pathogens in drinking water public facilities have been doing great harm human life. Because of booming drug resistance superbacteria, the abuse excessive use antibiotics during systemic treatment has caused a global antibiotic crisis. However, it usually takes long time to develop antibiotics. In recent years, photocatalytic antibacterial agents no side-effects due their rapid efficient bactericidal efficacy. They are becoming one most hopeful substitutions for dealing with bacterial diseases pollution by certain pathogens. Photocatalysis unique advantages field antibacterials, its controllability plays an irreplaceable role. This review focuses mechanism photocatalysis, which involves representative semiconductors (metal oxides, metal sulfides, carbon nitride, heterojunction composite materials) organics (organic polymers organic small molecules-aggregation induced emission) as well mechanism. this paper, we summarize mechanisms numbers current developing antimicrobial materials applications. Current difficulties expectations future these fields presented stimulate material manufacturing technologies industrialization combat infections. addition, potential application limitations research highlighted.

Language: Английский

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Photoresponsive Materials for Antibacterial Applications

Cell Reports Physical Science, Journal Year: 2020, Volume and Issue: 1(11), P. 100245 - 100245

Published: Nov. 1, 2020

Recently, photoactivated sterilization, as a rapid, effective, and antibiotic-free antibacterial method, has attracted increasing attention from researchers. Many outstanding photoresponsive materials, including photocatalysts, photosensitizers (PSs), photothermal have been developed applied to microbial inactivation treat infectious bacterial diseases. This mini-review aims provide insights gathered studying materials systems, (1) reactive oxygen species (ROS)-based photodynamic therapy (PDT) (2) hyperthermia-based (PTT). In addition, potential application fields for these methods, the remaining challenges using inactivation, perspectives future, prospective research directions are discussed in depth.

Language: Английский

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Advancements in Microwave Absorption Motivated by Interdisciplinary Research

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(4)

Published: Oct. 23, 2023

Abstract Microwave absorption materials (MAMs) are originally developed for military purposes, but have since evolved into versatile with promising applications in modern technologies, including household use. Despite significant progress bench‐side research over the past decade, MAMs remain limited their scope and yet to be widely adopted. This review explores history of from first‐generation coatings second‐generation functional absorbers, identifies bottlenecks hindering maturation. It also presents potential solutions such as exploring broader spatial scales, advanced characterization, introducing liquid media, utilizing novel toolbox (machine learning, ML), proximity lab end‐user. Additionally, it meticulously compelling medicine, mechanics, energy, optics, sensing, which go beyond efficiency, along current development status prospects. interdisciplinary direction differs previous primarily focused on meeting traditional requirements (i.e., thin, lightweight, wide, strong), can defined next generation smart absorbers. Ultimately, effective utilization ubiquitous electromagnetic (EM) waves, aided by third‐generation MAMs, should better aligned future expectations.

Language: Английский

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An Engineered Pseudo‐Macrophage for Rapid Treatment of Bacteria‐Infected Osteomyelitis via Microwave‐Excited Anti‐Infection and Immunoregulation

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(41)

Published: Aug. 15, 2021

Preventing deep bacterial infection and simultaneously enhancing osteogenic differentiation are in great demand for osteomyelitis. Microwave (MW) dynamic therapy is attracting attention due to its excellent penetration ability, but the mechanism of MW-induced reactive oxygen species (ROS) still unknown. Herein, MW-responsive engineered pseudo-macrophages (M-Fe3 O4 /Au nanoparticles (NPs)) fabricated clear Staphylococcus aureus infections induce M2 polarization macrophages improve bone marrow mesenchymal stem cells (MSCs) under MW irradiation. Fe3 NPs can generate ·O2- heat irradiation a saline solution, put forward via finite element modeling density functional theory calculations. Due gap plasmon, electromagnetic hotspots produced at -Au interface 2.45 GHz. Because these induced hotspots, sodium field-ionized subsequently reacts with produce . Meanwhile, have stronger ability than fix oxygen, favoring production ROS. Additionally, MW-treated diminish secrete inflammatory cytokines, resulting decrease ROS MSCs thus their differentiation. These will be promising effectively treating promoting osteoblast tissues

Language: Английский

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Antimicrobial Photodynamic Therapy: Latest Developments with a Focus on Combinatory Strategies

Pharmaceutics, Journal Year: 2021, Volume and Issue: 13(12), P. 1995 - 1995

Published: Nov. 24, 2021

Antimicrobial photodynamic therapy (aPDT) has become a fundamental tool in modern therapeutics, notably due to the expanding versatility of photosensitizers (PSs) and numerous possibilities combine aPDT with other antimicrobial treatments combat localized infections. After revisiting basic principles aPDT, this review first highlights current state art curative or preventive applications relevant clinical trials. In addition, most recent developments photochemistry photophysics as well advanced carrier systems context are provided, focus on latest generations efficient versatile PSs progress towards hybrid-multicomponent systems. particular, deeper insight into combinatory approaches is afforded, involving non-radiative light-based modalities. Selected perspectives outlined, pointing out new strategies target treat microorganisms. Finally, works evolution conceptually simple PDT methodology much more sophisticated, integrated, innovative technology an important element potent strategies.

Language: Английский

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