Related Experiment Video

Updated: Feb 11, 2026

Preparation of Chitosan-based Injectable Hydrogels and Its Application in 3D Cell Culture
08:05

Preparation of Chitosan-based Injectable Hydrogels and Its Application in 3D Cell Culture

Published on: September 29, 2017

20.0K

Chiral betulin-imino-chitosan hydrogels by dynamic covalent sonochemistry

Manuela Maria Iftime1, Luminita Marin1

  • 1Petru Poni Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania.

Ultrasonics Sonochemistry
|April 30, 2018
PubMed

Keywords:
BetulinChiralityChitosanDynamic covalent chemistryHydrogels

More Related Videos

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface08:26

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface

Published on: July 10, 2014

15.6K
Constructing a Collagen Hydrogel for the Delivery of Stem Cell-loaded Chitosan Microspheres09:39

Constructing a Collagen Hydrogel for the Delivery of Stem Cell-loaded Chitosan Microspheres

Published on: June 1, 2012

17.3K

Related Concept Videos

Covalent Bonds01:29

Covalent Bonds

Overview
163.7K
Covalent Bonds01:08

Covalent Bonds

Overview
When two atoms share electrons to complete their valence shells, they create a covalent bond. An atom's electronegativity—the force with which shared electrons are pulled towards an atom—determines how the electrons are shared. Molecules formed with covalent bonds can be either polar or nonpolar. Atoms with similar electronegativities form nonpolar covalent bonds; the electrons are shared equally. Atoms with different electronegativities share electrons unequally,...
11.5K
Network Covalent Solids02:18

Network Covalent Solids

Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
16.2K
Chirality02:25

Chirality

Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
29.7K
Covalently Linked Protein Regulators02:04

Covalently Linked Protein Regulators

Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
9.7K
Covalent Bonding and Lewis Structures02:46

Covalent Bonding and Lewis Structures

Compared to ionic bonds, which results from the transfer of electrons between metallic and nonmetallic atoms, covalent bonds result from the mutual attraction of atoms for a “shared” pair of electrons.
62.0K