The Preparation, Characterization, Mechanical and Antibacterial Properties of GO-ZnO Nanocomposites with a Poly(l-lactide)-Modified Surface

Yuan, Mingwei; Xiong, Chengdong; Jiang, Lin; Li, Hongli

doi:10.3390/ma11020323

Cited by 15 publications

(8 citation statements)

References 47 publications

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“…It seems to be one of the most promising strategies for developing robust and efficient photocatalysts [75]. It is for this reason that numerous carbonaceous supports have been reported for ZnO, such as graphene (G) [58,76,77], GO [78][79][80], rGO [81][82][83]. In Figure 11, the carbonaceous materials most used since 2016 and until 2020 were rGO, representing 48.68% of all carbonaceous materials used to synthesize nanocomposites.…”

Section: Type Of Carbonaceous Supportmentioning

confidence: 99%

Synthesis, Characterization, and Photocatalytic Performance of ZnO–Graphene Nanocomposites: A Review

et al. 2020

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ZnO is an exciting material for photocatalysis applications due to its high activity, easy accessibility of raw materials, low production costs, and nontoxic. Several ZnO nano and microstructures can be obtained, such as nanoparticles, nanorods, micro flowers, microspheres, among others, depending on the preparation method and conditions. ZnO is a wide bandgap semiconductor presenting massive recombination of the generated charge carriers, limiting its photocatalytic efficiency and stability. It is common to mix it with metal, metal oxide, sulfides, polymers, and nanocarbon-based materials to improve its photocatalytic behavior. Therefore, ZnO–nanocarbon composites formation has been a viable alternative that leads to new, more active, and stable photocatalytic systems. Mainly, graphene is a well-known two-dimensional material, which could be an excellent candidate to hybridize with ZnO due to its excellent physical and chemical properties (e.g., high specific surface area, optical transmittance, and thermal conductivity, among others). This review analyses ZnO–graphene nanocomposites’ recent advances, addressing the synthesis methods and the resulting structural, morphological, optical, and electronic properties. Moreover, we examine the ZnO–graphene composites’ role in the photocatalytic degradation of organic/inorganic pollutants.

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Section: Type Of Carbonaceous Supportmentioning

confidence: 99%

Synthesis, Characterization, and Photocatalytic Performance of ZnO–Graphene Nanocomposites: A Review

et al. 2020

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“…The resonance signal for the proton of CH 3 group and CH groups at δ = 1.6 and δ = 5.2 were assigned to the repetitive units in PLLA. The end group of PLLA chains showed a resonance signal at δ = 5, corresponding to the presence of methine group nearby the end –OH group 22 , 23 . The 1 H chemical shifts of CH– of Gly, –CH of Ala, and –CH 3 of Ala were seen at 4.1 ppm, 4.48 ppm and 1.47 ppm, respectively 24 .…”

Section: Resultsmentioning

confidence: 99%

Structural evolution of in situ polymerized poly(L-lactic acid) nanocomposite for smart textile application

Hazarika

Kumar

Katiyar

2022

Sci Rep

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This present study demonstrated the preparation of a highly crystalline anatase (ana) form of titanium oxide (TiO2) doped silk nanocrystal (SNC) nanohybrid (ana-TCS) of diameter (7.5 ± 1.4 nm) by the sol–gel method using titanium (IV) butoxide as the hydrolysis material. This prepared nanohybrid with surface hydroxyl groups acted as a co-initiator for the synthesis of poly(L-lactic acid) (PLLA)-g-ana-TSC nanocomposite with grafted PLLA chains via the in situ polymerization technique, using tin-octoate as a catalyst. The fabricated nanocomposite had a high number average molecular weight of 83 kDa with good processibility. This prepared nanocomposite was hydrophobic in nature, with a contact angle of 105°, which was further enhanced to 122 ± 1° when processed via electrospinning technique into a non-woven fabric. The prepared nanocomposite could degrade up to 43% methylene blue dye in 15 days. This nanocomposite showed no significant molecular weight reduction after 1 h of aqeous treatment, which could be attributed to its hydrophobic nature, inhibiting its degradation. However, 50% degradation was observed for the nanocomoposite whereas, PLLA demonstrated 25% degradation in 15 days, after its end-of-life. Thus, this study revealed that the in situ synthesized PLA-ana-TCS nanocomposite could be targeted for use as a hydrophobic, self-cleaning, dye-degradable fabric.

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“…Tobías et al 413 fabricated the PDLA/ZnO (3 wt%) fibrous mats that exhibit a uniform morphology with an average pore size of around 45 μm and porosity of 55% for antimicrobial wound dressings application 413 . Electrospun PLA/ZnO nanocomposites impregnated with tranexamic acid were applied for wound treatment, as they displayed antibacterial properties and antifibrinolytic drugs that accelerate wound closure 414 . Yuan et al 416 grafted PLLA chains on the Graphene oxide‐ZnO surface disclose excellent compatibility and antibacterial properties.…”

Section: Nano Particles (Nps)mentioning

confidence: 99%

A review on polylactic acid‐based blends/composites and the role of compatibilizers in biomedical engineering applications

Srivastava,

Bhati,

Singh

et al. 2024

Polymer Engineering & Sci

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Poly(lactic acid) (PLA) is one of the most promising biopolymers extensively used in food, packaging, medical and pharmaceutical industries. It is due to favorable physicochemical properties, in‐situ hydrolytic degradation and well‐established processing parameters. However, in medical engineering applications, PLA shows some drawbacks like low cell adhesion, biological inertness, slow degradation rate and high acid inflammation. These shortcomings of pure PLA could be addressed by blending it with other bioresorbable materials and compatibilizers. This review provides comprehensive information on different PLA composites in the field of tissue engineering, implants, injury management and drug delivery systems. The PLA‐based composites are divided into four parts: PLA/polymer, PLA/metal, PLA/ceramic, and PLA/nanoparticles. It also investigates various synthesis process, role of different compatibilizers, in vitro studies and their in vivo applications.Highlights Review the trends of bioresorbable PLA blends/composites. Extensively focused on PLA blend with polymer, metal, ceramic, and nanoparticles. Role of reinforcement and compatibilizer to overcome shortcomings of PLA implant. Highlights advantages, limitations, and properties of different types of PLA implants. Discuss various clinical applications and future of PLA blends/composite scaffolds.

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The Preparation, Characterization, Mechanical and Antibacterial Properties of GO-ZnO Nanocomposites with a Poly(l-lactide)-Modified Surface

Cited by 15 publications

References 47 publications

Synthesis, Characterization, and Photocatalytic Performance of ZnO–Graphene Nanocomposites: A Review

Synthesis, Characterization, and Photocatalytic Performance of ZnO–Graphene Nanocomposites: A Review

Structural evolution of in situ polymerized poly(L-lactic acid) nanocomposite for smart textile application

A review on polylactic acid‐based blends/composites and the role of compatibilizers in biomedical engineering applications

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