In-situ reduction of monodisperse nanosilver on hierarchical wrinkled mesoporous silica with radial pore channels and its antibacterial performance

Wan, Xuejuan; Zhuang, Lulu; She, Boxi; Deng, Yuanming; Chen, Dazhu; Tang, Junlei

doi:10.1016/j.msec.2016.04.058

Cited by 44 publications

(22 citation statements)

References 65 publications

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“…Along this line Wan et al employed sulfonate-modified MSNs onto which coordinate Ag + to further prepare monodisperse AgNPs by in-situ reduction. 86 With this approach the authors prepared a model in which the resulting AgNPs had a relative small size and a fantastic dispersion throughout the silica, allowing to reach complete destruction of E. coli colonies at a concentration near 50μg/mL and S. aureus at about 150μg/mL. Following a parallel strategy, Song et al employed sulfonate-modified SBA-15 MSNs to prepare their MSN@AgNPs; although in this case with an additional coating of polydopamine which embedded the MSN@AgNPs hybrids.…”

Section: Antibacterial Effects Of Metal-doped Msnsmentioning

confidence: 99%

Recent Advances Toward the Use of Mesoporous Silica Nanoparticles for the Treatment of Bacterial Infections

Castillo

2021

IJN

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It is a fact that the use of antibiotics is inducing a growing resistance on bacteria. This situation is not only the consequence of a drugs’ misuse, but a direct consequence of a widespread and continuous use. Current studies suggest that this effect could be reversed by using abandoned antibiotics to which bacteria have lost their resistance, but this is only a temporary solution that in near future would lead to new resistance problems. Fortunately, current nanotechnology offers a new life for old and new antibiotics, which could have significantly different pharmacokinetics when properly delivered; enabling new routes able to bypass acquired resistances. In this contribution, we will focus on the use of porous silica nanoparticles as functional carriers for the delivery of antibiotics and biocides in combination with additional features like membrane sensitizing and heavy metal-driven metabolic-disrupting therapies as two of the most interesting combination therapies.

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Section: Antibacterial Effects Of Metal-doped Msnsmentioning

confidence: 99%

Recent Advances Toward the Use of Mesoporous Silica Nanoparticles for the Treatment of Bacterial Infections

Castillo

2021

IJN

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“…Tang and co‐workers prepared hierarchically wrinkled MS NPs loaded with AgNPs and tested their antibacterial behavior against E. coli and S. aureus . In a first step, the mesoporous scaffold was functionalized with mercaptopropyl moieties.…”

Section: Ms In Antibacterial Applicationsmentioning

confidence: 99%

Mesoporous Silica‐Based Materials with Bactericidal Properties

Bernardos

Piacenza

Sancenón

et al. 2019

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145

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Bacterial infections are the main cause of chronic infections and even mortality. In fact, due to extensive use of antibiotics and, then, emergence of antibiotic resistance, treatment of such infections by conventional antibiotics has become a major concern worldwide. One of the promising strategies to treat infection diseases is the use of nanomaterials. Among them, mesoporous silica materials (MSMs) have attracted burgeoning attention due to high surface area, tunable pore/particle size, and easy surface functionalization. This review discusses how one can exploit capacities of MSMs to design and fabricate multifunctional/controllable drug delivery systems (DDSs) to combat bacterial infections. At first, the emergency of bacterial and biofilm resistance toward conventional antimicrobials is described and then how nanoparticles exert their toxic effects upon pathogenic cells is discussed. Next, the main aspects of MSMs (e.g., physicochemical properties, multifunctionality, and biosafety) which one should consider in the design of MSM‐based DDSs against bacterial infections are introduced. Finally, a comprehensive analysis of all the papers published dealing with the use of MSMs for delivery of antibacterial chemicals (antimicrobial agents functionalized/adsorbed on mesoporous silica (MS), MS‐loaded with antimicrobial agents, gated MS‐loaded with antimicrobial agents, MS with metal‐based nanoparticles, and MS‐loaded with metal ions) is provided.

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“…Similarly, Wan et al. used Ag‐coated DFNS as an antibacterial agent, which showed excellent activity for both E. coli and S. aureus having a minimum inhibitory concentrations of 36.55 and 73.10 mg L −1 and minimum bactericidal concentrations of 48.55 and 97.10 mg L −1 …”

Section: Biomedical Applications Using Dfnsmentioning

confidence: 99%

Dendritic Fibrous Nanosilica for Catalysis, Energy Harvesting, Carbon Dioxide Mitigation, Drug Delivery, and Sensing

2017

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Morphology‐controlled nanomaterials such as silica play a crucial role in the development of technologies for addressing challenges in the fields of energy, environment, and health. After the discovery of Stöber silica, followed by that of mesoporous silica materials, such as MCM‐41 and SBA‐15, a significant surge in the design and synthesis of nanosilica with various sizes, shapes, morphologies, and textural properties has been observed in recent years. One notable invention is dendritic fibrous nanosilica, also known as KCC‐1. This material possesses a unique fibrous morphology, unlike the tubular porous structure of various conventional silica materials. It has a high surface area with improved accessibility to the internal surface, tunable pore size and pore volume, controllable particle size, and, importantly, improved stability. Since its discovery, a large number of studies have been reported concerning its use in applications such as catalysis, solar‐energy harvesting, energy storage, self‐cleaning antireflective coatings, surface plasmon resonance‐based ultrasensitive sensors, CO2 capture, and biomedical applications. These reports indicate that dendritic fibrous nanosilica has excellent potential as an alternative to popular silica materials such as MCM‐41, SBA‐15, Stöber silica, and mesoporous silica nanoparticles. This Review provides a critical survey of the dendritic fibrous nanosilica family of materials, and the discussion includes the synthesis and formation mechanism, applications in catalysis and photocatalysis, applications in energy harvesting and storage, applications in magnetic and composite materials, applications in CO2 mitigation, biomedical applications, and analytical applications.

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In-situ reduction of monodisperse nanosilver on hierarchical wrinkled mesoporous silica with radial pore channels and its antibacterial performance

Cited by 44 publications

References 65 publications

Recent Advances Toward the Use of Mesoporous Silica Nanoparticles for the Treatment of Bacterial Infections

Recent Advances Toward the Use of Mesoporous Silica Nanoparticles for the Treatment of Bacterial Infections

Mesoporous Silica‐Based Materials with Bactericidal Properties

Dendritic Fibrous Nanosilica for Catalysis, Energy Harvesting, Carbon Dioxide Mitigation, Drug Delivery, and Sensing

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