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Owing to the possibility of controlling its specific mechanical behaviors up taken by irradiated by light at particular wavelengths, the photoisomerization hydrogels have a broad range of potential applications. A theory connecting the…

Chemical Physics · Physics 2023-05-16 Xinyu Liu , Qingsheng Yang , Wei Rao

Hydrogels are soft materials engineered to suit a multitude of applications that exploit their tunable mechanochemical properties. Dynamic hydrogels employing noncovalent, physically crosslinked networks dominated by either enthalpic or…

Soft Condensed Matter · Physics 2023-11-28 Samya Sen , Anthony C. Yu , Changxin Dong , Andrea I. D'Aquino , Eric A. Appel

The mechanical competence and suturing ability of collagen-based membranes are paramount in Guided Bone Regeneration (GBR) therapy, to ensure damage-free implantation, fixation and space maintenance in vivo. However, contact with the…

Tissues and Organs · Quantitative Biology 2024-10-18 Ruya Zhang , Charles Brooker , Laura L. E. Whitehouse , Neil H. Thomson , David Wood , Giuseppe Tronci

Photonic metamaterials with properties unattainable in base materials are already beginning to revolutionize optical component design. However, their exceptional characteristics are often static, as artificially engineered into the material…

We probe the mechanisms at work in the build-up of thermoreversible gel networks, with the help of hybrid gelatin gels containing a controlled density of irreversible, covalent crosslinks (CL), which we quench below the physical gelation…

Soft Condensed Matter · Physics 2015-06-24 H. Souguir , O. Ronsin , C. Caroli , T. Baumberger

Photoactive liquid crystal elastomers are polymer networks of liquid crystal mesogens embedded with chromophores like azobenzene. They undergo large deformation when illuminated by light of a certain wavelength through photochemical…

Soft Condensed Matter · Physics 2022-01-10 Zhengxuan Wei , Ruobing Bai

Collagen type I is well-known for its outstanding mechanical properties which it inherits from its hierarchical structure. Collagen type I fibrils may be viewed as an heterogeneous material made of protein, macromolecules (such as…

Soft Condensed Matter · Physics 2024-06-27 Maxime Vassaux

The primary building block of the body is collagen, which is found in the extracellular matrix and in many stress-bearing tissues such as tendon and cartilage. It provides elasticity and support to cells and tissues while influencing…

Biomolecules · Quantitative Biology 2019-07-29 Michael W. H. Kirkness , Kathrin Lehmann , Nancy R. Forde

Covalent organic frameworks (COFs) have recently emerged as a new generation of porous polymers combining molecular functionality with the robustness and structural definition of crystalline solids. Drawing on the recent development of…

Materials Science · Physics 2014-01-16 Linus Stegbauer , Katharina Schwinghammer , Bettina V. Lotsch

The design of exudate-managing wound dressings is an established route to accelerated healing, although such design remains a challenge from material and manufacturing standpoints. Aiming towards the clinical translation of knowledge gained…

Biological Physics · Physics 2016-10-19 Giuseppe Tronci , Jie Yin , Roisin A. Holmes , He Liang , Stephen J. Russell , David J. Wood

Two types of high-strength composite hydrogels possessing the structure of interpenetrating polymer networks were synthesized via free-radical polymerization of acrylamide carried out straight within the matrix of plant or bacterial…

Chemical Physics · Physics 2019-04-02 Alexander Buyanov , Iosif Gofman , Natalya Saprykina

With the increasing demand for personalized health monitoring, wearable sensors have gained attention in medical diagnostics and physiological tracking. Hydrogels, known for their mechanical properties and similarity to biological tissues,…

Nature has exhibited numerous soft-interactive botanical or zoological systems with self-adaptivenss or reconfigurable shape, however, artificial micro/nano materials of same merit are formidable due to material/structural limitations,…

Applied Physics · Physics 2020-06-16 Yufeng Tao

Collagen fibrils, cable-like assemblies of long biological molecules, are dominant components of connective tissues. Their determinant morphological and functional roles motivated a large number of studies concerning their formation and…

Soft Condensed Matter · Physics 2011-04-04 Jean Charvolin , Jean-François Sadoc

Advanced bioactive systems with defined macroscopic properties and spatio-temporal sequestration of extracellular biomacromolecules are highly desirable for next generation therapeutics. Here, chitosan hydrogels were prepared with neutral…

Chemical Physics · Physics 2013-10-29 Giuseppe Tronci , Hiroharu Ajiro , Stephen J. Russell , David J. Wood , Mitsuru Akashi

High-strength composite hydrogels cellulose-polyacrylamide were synthesized by free-radical polymerization of acrylamide conducted inside the previously formed physical network of regenerated plant cellulose. Partial hydrolysis of the amide…

Efficient artificial photosynthesis systems are currently realized as catalyst- and surfacefunctionalized photovoltaic tandem- and triple-junction devices, enabling photoelectrochemical (PEC) water oxidation while simultaneously recycling…

Photocatalytic water splitting can produce hydrogen in an environmentally friendly way and provide alternative energy sources to reduce global carbon emissions. Recently, monolayer fullerene networks have been successfully synthesized [Hou…

Materials Science · Physics 2022-12-22 Bo Peng

Integrated photoelasticity is investigated for a soft material subjected to a three-dimensional stress state. In the experiment, a solid sphere is pressed against a gelatin gel (Young's modulus is about 4.2 kPa) that deforms up to 4.5 mm…

Hydrogels which are hydrophilic and porous materials have recently emerged as promising systems for filtration applications. In our study, we prepare hydrogel membranes by the photopolymerization of a mixture of poly (ethylene glycol)…