Carbon quantum dots improve the mechanical behavior of polyvinyl alcohol/polyethylene glycol hydrogel

Hu, Feng; Lu, Hailin; Xu, Guowen; Lv, Leifeng; Chen, Lu; Shao, Zhonglei

doi:10.1002/app.52805

Cited by 12 publications

(24 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Substances with hydrogen bonding acceptors and hydrophilic polar functional groups may inhibit the nonspecific absorption of proteins; they may form hydrogen bonds with water molecules in aqueous media and form a highly hydrated layer on the polymer surface to effectively achieve antibacterial properties. Polyethylene glycols (PEG) [76], polyvinyl alcohols (PVA) [77], polyacrylates [78], amphiphilic polymers [79], polysaccharides, and other hydrophilic substances are widely used as raw materials in the field of antibacterial hydrogels [80]. Next, the applications of hydrogel coatings containing the above substances in biomaterials are introduced.…”

Section: Bacterial Repellence and Inhibitionmentioning

confidence: 99%

Antibacterial-Based Hydrogel Coatings and Their Application in the Biomedical Field—A Review

Peng

Shi

Chen

et al. 2023

JFB

View full text Add to dashboard Cite

Hydrogels exhibit excellent moldability, biodegradability, biocompatibility, and extracellular matrix-like properties, which make them widely used in biomedical fields. Because of their unique three-dimensional crosslinked hydrophilic networks, hydrogels can encapsulate various materials, such as small molecules, polymers, and particles; this has become a hot research topic in the antibacterial field. The surface modification of biomaterials by using antibacterial hydrogels as coatings contributes to the biomaterial activity and offers wide prospects for development. A variety of surface chemical strategies have been developed to bind hydrogels to the substrate surface stably. We first introduce the preparation method for antibacterial coatings in this review, which includes surface-initiated graft crosslinking polymerization, anchoring the hydrogel coating to the substrate surface, and the LbL self-assembly technique to coat crosslinked hydrogels. Then, we summarize the applications of hydrogel coating in the biomedical antibacterial field. Hydrogel itself has certain antibacterial properties, but the antibacterial effect is not sufficient. In recent research, in order to optimize its antibacterial performance, the following three antibacterial strategies are mainly adopted: bacterial repellent and inhibition, contact surface killing of bacteria, and release of antibacterial agents. We systematically introduce the antibacterial mechanism of each strategy. The review aims to provide reference for the further development and application of hydrogel coatings.

show abstract

Section: Bacterial Repellence and Inhibitionmentioning

confidence: 99%

Antibacterial-Based Hydrogel Coatings and Their Application in the Biomedical Field—A Review

Peng

Shi

Chen

et al. 2023

JFB

View full text Add to dashboard Cite

show abstract

“…[73][74][75] In recent years, great progress in CDs/synthetic polymer composite hydrogels has been made. For instance, Lu et al [76] synthesized CDs using chitosan as a precursor through hydrothermal method. Then, a cross-linked hydrogel was fabricated by mixing CDs with polyethylene glycol (PEG) and polyvinyl alcohol (PVA).…”

Section: Hydrogels Formed By Cds and Synthetic Polymersmentioning

confidence: 99%

“…The GQDs-modified graphene sheets could self-assembled into hybrid hydrogels with 3D network structure via a hydrothermal process (Figure 6b). The lignosulfonate based GQDs with various functional groups can provide sufficient active sites, and the [76] Copyright 2022, Wiley-VCH. b) Preparation process of the GQD-based hydrogel.…”

Section: Hydrogels Formed By Cds and Graphene Oxidementioning

confidence: 99%

See 2 more Smart Citations

Carbon Dot‐Based Hydrogels: Preparations, Properties, and Applications

Wang

Yin

et al. 2023

Small

View full text Add to dashboard Cite

heat, electricity, magnetism, mechanics, and chemistry. For example, the involvement of nanoparticles has proved to be an effective strategy to impart multifunctional properties to the hydrogels. [11] As a composite material, nanoparticle hydrogel composites have made remarkable progress in the fields of biomedicine, [12,13] sensing, [14,15] advanced energy technology, [16] environment and industry. [17] For another example, fluorescent hydrogels have been constructed by introducing organic dyes, [18,19] lanthanides, [20,21] or semiconductor quantum dots [22] into the hydrogel system.CDs are a novel class of carbon-based nanomaterials, which can be viewed as the relatives of nanoparticles with contractible sizes (typically <10 nm). Compared with other nanoparticles, CDs have high photostability, [23] low cost, [24] good biocompatibility, [25] high water solubility, and tunable photoluminescence. [26] These intriguing properties afford CDs many potential applications in biomedicine, [27,28] sensing, [29,30] catalysis, [31,32] optoelectronic devices, [33][34][35] and anticounterfeiting. [36] The emergence of CDs solved the long-lasting drawbacks of traditional PL materials, such as the poor photostability of organic dyes, the high cost of lanthanides, and the toxicity of semiconductor quantum dots. Generally, CDs can be obtained by two strategies. One is the top-down route, in which the CDs are broken off from larger carbon species. The other is the bottomup route, in which the CDs are synthesized by using molecular precursors. [37] According to the micro-/nanostructure, formation mechanism, and precursors used, CDs are mainly divided into four categories: [38] graphene quantum dots (GQDs), carbon quantum dots (CQDs), carbon nanodots (CNDs), and carbonized polymer dots (CPDs). GQDs with one or multiple-layer graphite structure and apparent graphene lattices are generally gained by "top-down" prepared routes: oxidation of cutting bulky graphitized carbon materials. CQDs, CNDs, and CPDs are usually synthesized from biomass, small molecules, or polymers by assembling, polymerization, crosslinking, and carbonization by "bottom-up" routes. CQDs have graphitelike crystal lattices with surface functional groups, showing internal state luminescence and the quantum size confinement. CNDs also have a large number of functional groups on the surface, but the cores of CNDs contain amorphous carbon without apparent crystal lattices. [39] CPDs have unique "core-shell" nanostructures, consisting of carbon cores with Hydrogels have extremely high moisture content, which makes it very soft and excellently biocompatible. They have become an important soft material and have a wide range of applications in various fields such as biomedicine, bionic smart material, and electrochemistry. Carbon dot (CD)-based hydrogels are based on carbon dots (CDs) and auxiliary substances, forming a gel material with comprehensive properties of individual components. CDs embedding in hydrogels could not only solve their aggregation-caused quenching (A...

show abstract

Modified Bacterial Cellulose for Biomedical Applications

Tang

Heng

Chai

et al. 2022

Chemistry An Asian Journal

View full text Add to dashboard Cite

Bacterial cellulose, or microbial cellulose, had gained tremendous interest as a hydrogel material for biomedical purposes in the recent years. It has many intrinsic physiological properties like fibrous nature, ultrafine 3D nanostructure network, high water holding capacity, excellent mechanical properties, biocompatibility and biodegradability that allow for the use of such purposes, and the lacking properties can be easily supplemented or enhanced by modifications. In this review, some of the biomedical applications that uses bacterial cellulose are discussed. These include wound healing, drug delivery, tissue engineering and tumor cell and cancer therapy. In each section, different modifications of BC are showcased and examined on how they benefit the application. Finally, key takeaways on these modifications are also deliberated.[a] K.

show abstract

Carbon quantum dots improve the mechanical behavior of polyvinyl alcohol/polyethylene glycol hydrogel

Cited by 12 publications

References 44 publications

Antibacterial-Based Hydrogel Coatings and Their Application in the Biomedical Field—A Review

Antibacterial-Based Hydrogel Coatings and Their Application in the Biomedical Field—A Review

Carbon Dot‐Based Hydrogels: Preparations, Properties, and Applications

Modified Bacterial Cellulose for Biomedical Applications

Contact Info

Product

Resources

About