Qingbo Wang

• Åbo Akademi University

Advanced cellulose‐based foams are urgently needed as sustainable packaging materials in an era of prioritizing environmental consciousness. However, transferring the mechanical properties of cellulose fibers into porous structures is always limited by gas entrapment during foaming and irreversible structural collapse upon liquid evaporation. Herei...

Polybutylene adipate-terephthalate (PBAT) offers a convincing ecological alternative to the traditional fossil-based plastics due to its biodegradability and robust mechanical properties. The objective of this study is to develop PBAT-based bio-composite films through incorporating functionalized cellulose nanocrystals (CNC) and curcumin (CUR). In...

The design of lignin nanostructures where interfacial interactions enable enhanced entanglement of colloidal networks can broaden their applications in hydrogel‐based materials and light‐based 3D printing. Herein, an approach for fabricating surface‐active dendritic colloidal microparticles (DCMs) characterized by fibrous structures using nanostruc...

Aqueous two‐phase emulsion (ATPE)‐based bioinks, a creative innovation for bioprinting, enable the fabrication of complex 3D cell‐laden hydrogels with macroporous structure, which promote cellular activities within the scaffold. However, these bioinks intrinsically lack stability and specific biofunctionality, potentially limiting their application...

The present study focuses on enhancing the thermomechanical properties of poly(methyl methacrylate) (PMMA), a transparent and biocompatible polymer known for its high strength but limited toughness. The approach involves the development of PMMA/cellulose nanocrystals (CNCs) composites. To improve the interfacial compatibility between PMMA and CNCs,...

Multifunctional biomaterial inks are in high demand for adapting hydrogels in biomedical applications through three-dimensional (3D) printing. Our previously developed xeno-free system consisting of anionic cellulose nanofibers (T-CNF) and methacrylated galactoglucomannan (GGMMA) as a photo(bio)polymer provides high-performance ink fidelity in extr...

One-dimensional (1D) nanomaterials of conductive polypyrrole (PPy) are competitive biomaterials for constructing bioelectronics to interface with biological systems. Synergistic synthesis using lignocellulose nanofibrils (LCNF) as a structural template in chemical oxidation of pyrrole with Fe(III) ions facilitates surface-confined polymerization of...

Microgel assembly as void‐forming bioinks in 3D bioprinting has evidenced recent success with a highlighted scaffolding performance of these bottom‐up biomaterial systems in supporting the viability and function of the laden cells. Here, a ternary‐component aqueous emulsion is established as a one‐step strategy to integrate the methacrylated gelati...

Fabricating bio‐latex colloids with core–shell nanostructure is an effective method for obtaining films with enhanced mechanical characteristics. Nano‐sized lignin is rising as a class of sustainable nanomaterials that can be incorporated into latex colloids. Fundamental knowledge of the correlation between surface chemistry of lignin nanoparticles...

To date, the energy-intensive production and high-water content severely limits nanocellulose applications on a large scale off-site. In this study, adding water-soluble polysaccharides (PS) to achieve an integrated process of water-redispersible nanocellulose production was well established. The addition of PS, in particular carboxymethylated-gala...

Electroconductive composites of graphene and cellulose nanocrystals (CNC) were prepared by direct exfoliation of natural flake graphite in CNC suspensions. Using the scalable high-shear exfoliation method, we show that the environmentally friendly CNC is an excellent graphene stabilizer as we prepared aqueous graphene-CNC dispersions with a high co...

Lithography-based digital light processing (DLP) 3D printing has gained increasing interest in the fabrication of custom-designed hydrogel scaffolds. Current research development calls for the versatility of the bio-based resin formulations...

We propose an injectable nanocomposite hydrogel that is photo-curable via light-induced thiol-ene addition between methacrylate modified O-acetyl-galactoglucomannan (GGMMA) and thiolate cellulose nanocrystal (CNC-SH). Compared to free-radical chain polymerization, the orthogonal step-growth of thiol-ene addition allows a less heterogeneous hydrogel...

Biomaterial inks based on cellulose nanofibers (CNFs) and photo-crosslinkable biopolymers have great potential as a high-performance ink system in light-aided, hydrogel extrusion-based 3D bioprinting. However, the colloidal stability of surface charged nanofibrils is susceptible to mono-cations in physiological buffers, which complexes the applicat...

Currently, the number of approved veterinary medicines are limited, and human medications are used off-label. These approved human medications are of too high potencies for a cat or a small dog breed. Therefore, there is a dire demand for smaller doses of veterinary medicines. This study aims to investigate the use of three semi-solid extrusion 3D...

Currently, the number of approved veterinary medicines are limited, and human medications are used off-label. These approved human medications are of too high potencies for a cat or a small dog breed. Therefore, there is a dire demand for smaller doses of veterinary medicines. This study aims to investigate the use of three semi-solid extrusion 3D...

Nanocelluloses have emerged as a catalogue of renewable nanomaterials for bioink formulation in service of 3D bioprinting, thanks to their structural similarity to extracellular matrices and excellent biocompatibility of supporting crucial cellular activities. From a material scientist’s viewpoint, this mini-review presents the key research aspects...

Both cellulose nanofibrils (CNFs) and polydopamine (PDA) have attracted much attention due to their unique physical-chemical properties and environmental benign nature. In this work, CNFs produced by 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) -mediated oxidation (named as TOCNFs) were combined with PDA to prepare a novel pH/near-infrared responsi...

Cellulose nanopaper (CNP) is of great interest to researchers mainly due to its renewability, excellent mechanical property and optical property. However, CNP is usually sensitive to water, resulting in the loss of strength and durability. To overcome this issue, in this work, an efficient and sustainable route, which involved ammonium sulfite cook...