By Steve Rimmer
Hydrogels are extremely important for biomedical purposes simply because they are often chemically manipulated to adjust and regulate the hydrogel’s interplay with cells and tissues. Their flexibility and excessive water content material is identical to that of traditional tissue, making them tremendous appropriate for biomaterials functions. "Biomedical hydrogels" explores the various diversity and use of hydrogels, targeting processing equipment and novel purposes within the box of implants and prostheses. half one among this booklet concentrates at the processing of hydrogels, masking hydrogel swelling behaviour, superabsorbent cellulose-based hydrogels and rules of novel hydrogel items, in addition to chapters concentrating on the constitution and houses of hydrogels and assorted fabrication applied sciences. half covers present and novel functions of hydrogels, together with chapters on spinal disc and cartilage alternative implants, hydrogels for ophthalmic prostheses and hydrogels for wound therapeutic applications. The final bankruptcy addresses the position of hydrogels in imaging implants in situ.
Read Online or Download Biomedical Hydrogels: Biochemistry, Manufacture and Medical Applications (Woodhead Publishing in Materials) PDF
Similar biochemistry books
Clutch biochemistry fundamentals, practice the technological know-how, and ace your exams
Are you baffled via biochemistry? if that is so here's the good news ? you don't need to remain that means! indicates you ways to get a deal with on biochemistry, observe the technological know-how, elevate your grades, and get ready your self to ace any standardized test.
This pleasant, unintimidating consultant provides an outline of the fabric lined in a standard college-level biochemistry direction and makes the topic effortless to appreciate and obtainable to every body. From mobilephone ultrastructure and carbohydrates to amino acids, proteins, and supramolecular constitution, you'll establish biochemical buildings and reactions, and ship your grades soaring.
Newest biology, biochemistry, chemistry, and medical discoveries
Updated examples and explanations
Incorporates the most up-tp-date educating techniques
From water biochemistry to protein synthesis, supplies the very important info, transparent reasons, and critical insights you must raise your knowing and increase your functionality on any biochemistry try.
So much details on yeasts derives from experiments with the traditional yeasts Saccaromyces cerevisiae and Schizossaccharomyces pombe, the entire nuclear and mitochondrial genome of which has additionally been sequenced. For all different non-conventional yeasts, investigations are in development and the quick improvement of molecular ideas has allowed an perception additionally right into a number of non-conventional yeasts.
- Biochemistry and Molecular Biology
- Activity-Based Proteomics: Methods and Protocols
- Biochemische und physiologische Versuche mit Pflanzen: für Studium und Unterricht im Fach Biologie
- Biomedical Aspects of Histamine: Current Perspectives
- Ciba Foundation Symposium - Isotopes in Biochemistry
Additional resources for Biomedical Hydrogels: Biochemistry, Manufacture and Medical Applications (Woodhead Publishing in Materials)
This chapter surveys the design and the manufacture of cellulose-based hydrogels, which are extensively investigated due to the large availability of cellulose in nature, the intrinsic degradability of cellulose and the smart behaviour displayed by some cellulose derivatives. The sorption mechanism of cellulose-based hydrogels is discussed, as a function of the desired application. Key words: cellulose derivatives, hydrogels, crosslink, swelling, thermodynamics, manufacturing applications. 1 Introduction Hydrogels are macromolecular networks widely used in the biomedical industry for different applications and are capable of absorbing, retaining and releasing water solutions in a reversible way and in response to specific environmental stimuli.
In particular, for a polyelectrolyte network, characterized by fixed charges on the macromolecular backbone, there are four polymer properties affecting polymer swelling: (1) the polymer chain hydrophilicity, which promotes polymer–solvent mixing and thus promotes material swelling when in contact with water and water solutions; (2) the presence of fixed ionic charges, which induces a ‘Donnan-type’ effect, an osmotic effect associated with the concentration of ionic charges in the hydrogel and induces more water to penetrate the hydrogel to dilute this higher charge concentration; (3) the electrostatic repulsion between the charges of the same sign present on the polymer backbone, which tends to expand the macromolecular network and thus promotes polymer swelling; and (4) the elastic response of the crosslinks, which is entropic in nature, stabilizes the polymer chains in the hydrogel network and counteracts polymer swelling.
As opposed to physical hydrogels, which show flow properties, stable and stiff networks of cellulose can be prepared by inducing the formation of covalent, irreversible crosslinks among the cellulose chains. , high-energy radiation) can be used to form stable cellulose-based networks. The degree of crosslinking, defined as the number of crosslinking sites per unit volume of the polymer network, affects the diffusive, mechanical and degradation properties of the hydrogel and can be controlled to a certain extent during the synthesis.
Biomedical Hydrogels: Biochemistry, Manufacture and Medical Applications (Woodhead Publishing in Materials) by Steve Rimmer