Gimenez, Rodrigo E.; Serrano, Mariana P.; Alvarez, Rosa Maria S.; Martino, Debora M.; Borsarelli, Claudio D. published the artcile< Fabrication and Characterization of Hollow Microcapsules from Polyelectrolytes Bearing Thymine Pendant Groups for Ultraviolet-B (UVB)-Induced Crosslinking>, Electric Literature of 1592-20-7, the main research area is polyelectrolyte microcapsule thymine UV crosslinking; hollow microcapsules; layer-by-layer method; photo-crosslinking; polyelectrolytes; thymine.
DNA – bioinspired polyelectrolytes poly[vinylbenzylthymine (VBT)-4-vinylbenzyltriethylammonium chloride (VBA)] and poly[vinylbenzylthymine (VBT)-4-vinylphenylsufonate (VPS)] were used for the preparation of hollow microcapsules (HMC) using the layer-by-layer method and CaCO3 microspheres as removable molds. Stable aqueous suspensions of spherical-shaped HMCs with a shell composed of six layers of VBA-based polyelectrolytes were obtained, of approx. (7.0 ± 1.5) μm diameter and a shell thickness of 1 μm. UV-B irradiation of the HMC suspensions induces an efficient crosslinking between adjacent polyelectrolyte chains through the formation of thymine photodimers, such as the cyclobutane pyrimidine dimer (CPD) and the (6-4) pyrimidine-pyrimidone photoproduct (6-4PP). This process resulted in a reduction of the average interstitial mesh size of the HMC shells, modulating their permeability properties and increasing the mech. stability of the HMC without a noticeable modification of size and shape. Thus, the DNA-bioinspired polyelectrolytes are promising materials for the preparation of UVB-responsive HMCs.
ChemPlusChem published new progress about Double-layer capacitance. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Electric Literature of 1592-20-7.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics