Article
Chemistry, Multidisciplinary
Yaqi Dong, Shouwei Zhao, Wenhui Lu, Nan Chen, Deyi Zhu, Yanchun Li
Summary: The gelatin/cellulose nanocrystal composite hydrogels prepared using mTG and CNCs showed improved mechanical properties and biocompatibility, demonstrating potential value in biomedical applications.
Article
Biochemistry & Molecular Biology
Malika Talantikite, Taylor C. Stimpson, Antoine Gourlay, Sophie Le-Gall, Celine Moreau, Emily D. Cranston, Jose M. Moran-Mirabal, Bernard Cathala
Summary: This study reported the preparation and application of thermoresponsive hydrogels composed of xyloglucan and cellulose nanocrystals, showing that the properties of the gels could be adjusted by specific mixing ratios and exhibiting a reversible thermal transition behavior. This thermoresponsive behavior provides opportunities for wide applications, especially in the biomedical field, where the mechanical properties could be further tuned by adjusting the content of cellulose nanocrystals.
Article
Chemistry, Applied
Nadege Leray, Malika Talantikite, Ana Villares, Bernard Cathala
Summary: This study focuses on the preparation and characterization of double network hydrogels based on cellulose nanocrystals. The hydrogels exhibited excellent mechanical properties and tunable swelling capacities which make them suitable for applications in bilayer actuators.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Applied
Ilayda Tarhanli, Erkan Senses
Summary: A thermo-responsive nanocomposite system is constructed using cellulose nanocrystals and sodium polypyrrole-sulfonate. By adjusting the concentration of the sodium polypyrrole-sulfonate, the mechanical properties of the nanocrystal network can be altered. At low concentrations, the composite system becomes softer but more fragile. However, at high concentrations, the system becomes stronger and forms a gel network. Additionally, the gelation temperature of the nanocomposite hydrogels can be tuned by increasing the concentration of sodium polypyrrole-sulfonate.
CARBOHYDRATE POLYMERS
(2023)
Article
Polymer Science
Ahmed E. Swilem, Tomoko Gowa Oyama, Kotaro Oyama, Atsushi Kimura, Mitsumasa Taguchi
Summary: CMC/G hybrid hydrogels demonstrate excellent biocompatibility and mechanical properties, effectively reducing postoperative adhesion. It has the potential to serve as a novel barrier material.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Biochemistry & Molecular Biology
Zhilu Rao, Yitong Dong, Jie Liu, Xuejing Zheng, Ying Pei, Keyong Tang
Summary: A strong and stable gelatin-based composite hydrogel was fabricated by incorporating amino-functionalized microfibrillated cellulose (AMFC) into the gelatin matrix. The addition of AMFC significantly improved the mechanical properties and structural stability of the gelatin hydrogel. The composite hydrogel exhibited excellent compressive strength and biocompatibility, making it promising for biomedical applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Applied
Kudzanai Nyamayaro, Parisa Mehrkhodavandi, Savvas G. Hatzikiriakos
Summary: A systematic rheological study was conducted to investigate the influence of different counterions on the properties of CNC hydrogels. It was found that a preshear of 500 s-1 for 1 min effectively broke down agglomerates in the suspension. Changing the counterions from monovalent to divalent and trivalent affected the network formation and led to different gel behaviors. The varying rheological properties displayed by CNCs with different counterions may impact their use as rheological modifiers in fluid-based applications.
CARBOHYDRATE POLYMERS
(2023)
Article
Biotechnology & Applied Microbiology
Haibin Lu, Xiaoling Li, Mu Zhang, Changpeng Xu, Wenqiang Li, Lei Wan
Summary: This study developed an injectable hydrogel that promotes vascularization and tissue regeneration through cellulose nanocrystals, antibacterial and anti-inflammatory effects. The hydrogel has in-situ forming properties, satisfactory mechanical performance, controlled release of silver ions, and biocompatibility, making it a potential biomedical dressing for skin defect treatment.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Xinkai Li, Jize Liu, Xinxing Zhang
Summary: This study presents a pressure/temperature dual-responsive cellulose nanocrystal (CNC) based hydrogel with adjustable dynamic chiral nematic structure. By incorporating abundant interfacial noncovalent interactions, wide-range optical characteristic and identifiable visualized patterning are achieved. The resultant hydrogel has potential applications in smart responsive photonic equipment including smart display, anticounterfeiting, and intelligent control systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Polymer Science
Myat Noe May, Akihide Sugawara, Taka-Aki Asoh, Yoshinori Takashima, Akira Harada, Hiroshi Uyama
Summary: This study develops and investigates a functional nanocomposite hydrogel using cellulose nanocrystals as a biobased filler, and designs the hydrogel by introducing supramolecular bonding between beta-cyclodextrin and adamantane groups at the interface between cellulose nanocrystals and the polymer matrix. The modified cellulose nanocrystals exhibit good dispersibility in aqueous media, even after modification with the hydrophobic adamantane group, due to electrostatic repulsion among negative charges on the nanocrystal surface. The modification also improves the interfacial compatibility between the filler and the matrix, enhancing the toughness of the hydrogel.
Article
Chemistry, Physical
Qiang He, Xiaozheng Sun, Yu Bai, Xin Meng, Chengze Li
Summary: DCNCs from spent fungi substrate were freeze-dried with gelatin to obtain nanoscale-powder that was easy to redisperse and store. The structural and morphological properties of DCNCs were characterized, and the redispersed DCNC suspension with the best light transmittance and stability was obtained under specific conditions of gelatin concentration, pH, and homogenization.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Charles H. Barty-King, Chun Lam Clement Chan, Richard M. Parker, Melanie M. Bay, Roberto Vadrucci, Michael De Volder, Silvia Vignolini
Summary: The challenge of utilizing mechanochromic properties of HPC in liquid form is addressed by creating an edible supramolecular photonic hydrogel by mixing HPC and gelatin in water. This gel retains the mechanochromism and non-Newtonian shear-thinning behavior of HPC solutions, with a 69% shorter relaxation time for color change compared to liquid HPC-water system, broadening the dynamic color range. The scalable formulation of HPC gels from water and food-grade constituents unlocks potential applications such as response-tunable mechanochromic materials and colorant-free food decoration.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Applied
Zhisen Wang, Zhengxin Ma, Shuaibing Wang, Menghan Pi, Xiaoyu Wang, Min Li, Honglang Lu, Wei Cui, Rong Ran
Summary: This study demonstrates a facile method to enhance and functionalize hydrogels using biomass-derived materials. By reinforcing polyacrylamide hydrogels with cellulose nanocrystal and phytic acid, the resulting hydrogels exhibit improved mechanical properties, electrical conductivity, anti-freezing, and antibacterial properties. This biomass-based strategy can potentially be applied to enhance various weak and insulating hydrogels.
CARBOHYDRATE POLYMERS
(2022)
Article
Materials Science, Paper & Wood
Aref Abbasi Moud, Amir Sanati-Nezhad, Seyed Hossein Hejazi
Summary: This study evaluates the stability and self-healing ability of cellulose nanocrystal hydrogels using quantitative fluorescence signal analysis. Hydrogel samples with lower cellulose nanocrystal concentrations collapse more rapidly under gravity, while increasing concentration inhibits particle mobility and hinders the self-healing process.
Review
Chemistry, Physical
Ville Hynninen, Jani Patrakka, Nonappa
Summary: This review discusses the diverse industrial applications of methylcellulose and its derivatives, as well as their significant role in the preparation of hydrogels and fiber materials.