Tunable release of silver nanoparticles from temperature-responsive polymer blends

Elashnikov, Roman; Lyutakov, Oleksiy; Kalachyova, Y.; Solovyev, A.; Švorčı́k, Václav

doi:10.1016/j.reactfunctpolym.2015.06.010

Cited by 23 publications

(12 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thermoresponsive properties of several polymers grafted to the material surface, such as poly(N‐isopropylacrylamide), are also widely used . In this case, the speed of wettability modulation is significantly higher, but the application of heating/cooling as external stimuli restricts the potential benefits of this approach.…”

Section: Introductionmentioning

confidence: 99%

Fast and Reproducible Wettability Switching on Functionalized PVDF/PMMA Surface Controlled by External Electric Field

Guselnikova

Švanda

Postnikov

et al. 2016

Adv Materials Inter

View full text Add to dashboard Cite

In this paper, the novel material with controllable wettability switching triggered by external electric field is developed. The material is based on the piezopolymer blend of poly(methyl methacrylate) (PMMA) and polyvinylidene difluoride (PVDF), grafted with various hydrophobic and hydrophilic molecules to alter the initial wettability of polymer films. Organic functional groups are grafted on the blend surface via formation of covalent bonds between PMMA and arenediazonium tosylates. The surface chemical structure and morphology of prepared samples are studied by X‐ray photoelectron spectroscopy, UV–vis, and attenuated total reflection infra red (ATR‐IR) spectroscopies, atomic force microscopy (AFM), and confocal microscopy. Attachment of gold nanoparticles to grafted thiol chemical groups is additionally used to confirm the modification procedure. Application of external stimuli in the form of the electric field leads to dramatic changes in water contact angle. Wettability switching is found to be extremely fast and completely repeatable without the destructions of the polymer film. Mechanism of switching is attributed to the morphological smoothening of piezoelectric responsible composite PVDF–PMMA under the application of external stimuli.

show abstract

Section: Introductionmentioning

confidence: 99%

Fast and Reproducible Wettability Switching on Functionalized PVDF/PMMA Surface Controlled by External Electric Field

Guselnikova

Švanda

Postnikov

et al. 2016

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

“…The release of silver lasted up to 108 h, indicating the durable antibacterial activity of AgNPs-PEM-SS/Agar film. Compared with other antibacterial materials, the AgNPs-PEM-SS/Agar films showed a more durable antibacterial ability due to the presence of PEM [ 48 , 49 , 50 , 51 ]. In a previous work, we have prepared AgNPs modified sericin/glycerol blend film (AgNPs/SS/Gly) without PEM and tested the Ag release [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of AgNPs In Situ Synthesis on Polyelectrolyte Membrane Coated Sericin/Agar Film for Antimicrobial Applications

et al. 2018

View full text Add to dashboard Cite

Antibacterial materials are of great importance in preventing bacterial adhesion and reproduction in daily life. Silver nanoparticle (AgNP) is a broad-spectrum antibacterial nanomaterial that has attracted significant attentions for its ability to endow natural materials with antibacterial ability. Silk sericin (SS) has a great advantage for biomaterial application, as it is a natural protein with excellent hydrophilicity and biodegradability. In this study, we prepared AgNPs and polyelectrolyte membrane (PEM) modified SS/Agar films through the layer-by-layer adsorption technique and ultraviolet-assisted AgNPs synthesis method. The film was well characterized by scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy. Other properties such as water contact angle, wettability and tensile strength, the release of silver were also studied. The antimicrobial activity of AgNPs-PEM-SS/Agar film was investigated against Escherichia coli and Staphylococcus aureus as the model microorganisms by the inhibition zone and bacterial growth curve assays. The results suggested that the AgNPs-PEM-SS/Agar film had excellent mechanical performance, high hydrophilicity, prominent water absorption ability, as well as outstanding and durable antibacterial activity. Therefore, the prepared novel AgNPs-PEM-SS/Agar composite film is proposed as a potentially favorable antibacterial biomaterial for biomedical applications.

show abstract

“…As a result, the diffusion and release of incorporated antimicrobial agents are accelerated at temperature below the LCST. A wide range of antimicrobial materials was reported which can be immobilized in thermo-responsive polymers, including silver nanoparticles, antibiotics, or antiseptics as well as antimicrobial peptides [60].…”

Section: Temperature Governed Antimicrobial Releasementioning

confidence: 99%

Physically Switchable Antimicrobial Surfaces and Coatings: General Concept and Recent Achievements

et al. 2021

View full text Add to dashboard Cite

Bacterial environmental colonization and subsequent biofilm formation on surfaces represents a significant and alarming problem in various fields, ranging from contamination of medical devices up to safe food packaging. Therefore, the development of surfaces resistant to bacterial colonization is a challenging and actively solved task. In this field, the current promising direction is the design and creation of nanostructured smart surfaces with on-demand activated amicrobial protection. Various surface activation methods have been described recently. In this review article, we focused on the “physical” activation of nanostructured surfaces. In the first part of the review, we briefly describe the basic principles and common approaches of external stimulus application and surface activation, including the temperature-, light-, electric- or magnetic-field-based surface triggering, as well as mechanically induced surface antimicrobial protection. In the latter part, the recent achievements in the field of smart antimicrobial surfaces with physical activation are discussed, with special attention on multiresponsive or multifunctional physically activated coatings. In particular, we mainly discussed the multistimuli surface triggering, which ensures a better degree of surface properties control, as well as simultaneous utilization of several strategies for surface protection, based on a principally different mechanism of antimicrobial action. We also mentioned several recent trends, including the development of the to-detect and to-kill hybrid approach, which ensures the surface activation in a right place at a right time.

show abstract

Tunable release of silver nanoparticles from temperature-responsive polymer blends

Cited by 23 publications

References 41 publications

Fast and Reproducible Wettability Switching on Functionalized PVDF/PMMA Surface Controlled by External Electric Field

Fast and Reproducible Wettability Switching on Functionalized PVDF/PMMA Surface Controlled by External Electric Field

Preparation and Characterization of AgNPs In Situ Synthesis on Polyelectrolyte Membrane Coated Sericin/Agar Film for Antimicrobial Applications

Physically Switchable Antimicrobial Surfaces and Coatings: General Concept and Recent Achievements

Contact Info

Product

Resources

About