Related Experiment Video
Updated: Feb 7, 2026

Staining of Proteins in Gels with Coomassie G-250 without Organic Solvent and Acetic Acid
Published on: August 14, 2009
Metal-Organic Gels of Catechol-Based Ligands with Ni(II) Acetate for Dye Adsorption
Yue Hong1, Zhiliang Gao1, Mengjun Chen1
1Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , P. R. China.
Abstract:
Metal organic gels (MOGs) are a class of supramolecular complexes, which have attracted widespread interest because of the coupled advantages of inorganic and organic building blocks. A new compound terminated with catechol was synthesized. This new compound can be used to coordinate with Ni2+ to form MOGs. These MOGs show favorable viscoelasticity and wormhole-shaped porous structures, which were confirmed by transmission electron microscope and scanning electronic microscope images. Taking the benefits of porosity into account, the xerogel could serve as an adsorbent to adsorb dye molecules from the aqueous media. The experimental results indicate that xerogels possess good adsorption effect both on anionic and cationic dyes. Exhaustive research has been performed on the adsorption kinetics and isotherms, revealing that the adsorption process accords with the pseudo-second-order model and the Langmuir model.
Related Concept Videos
Metal-Ligand Bonds
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Ligand Binding Sites
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Ligand Binding and Linkage
Alkali Metals
Table 1: Properties of the alkali metals
Analyte Adsorption and Distribution
Bonding in Metals

