62 results about "Perylenetetracarboxylic dianhydride" patented technology

The invention provides a surfactant as well as a preparation method and application thereof. The surfactant has relatively high surface activity and good foaming and foam stabilization effects. The molecule of the surfactant comprises 4 hydrophobic chain segments and hydrophilic units, wherein the hydrophobic chain segments are alkyl chains containing 8-18 carbon and the hydrophilic units are quaternary ammonium salt radicals; and the hydrophobic chain segments and the hydrophilic units are in covalent linkage at the part adjacent to quaternary ammonium salt through a bridge connection unit with an aromatic ring structure. The preparation method comprises the following steps: firstly, enabling aromatic tetracarboxylic dianhydride and dibromoethane to react, so as to generate an intermediate with four branch chains; and then enabling the intermediate and alkyl dimethyl tertiary amine to react so that the intermediate is modified with the quaternary ammonium salt radicals with positive charges and hydrophilic carbon chains, wherein the aromatic tetracarboxylic dianhydride is pyromellitic dianhydride, 1,4,5,8-naphthalenetetracarboxylic dianhydride or 3,4,9,10-perylenetetracarboxylic dianhydride, and the alkyl dimethyl tertiary amine is R-N(CH3)2, wherein R is CH3(CH2)n and n is an integer of 7-17.

The invention discloses a mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe and an application thereof. The molecular formula of the mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe is C104H108Br2N4O18P2, and the molar mass of the fluorescent probe is 1923.74. The mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe is characterized in that two sides of a fluorophore 3,4,9,10-perylenetetracarboxylic diimide are connected with two water-soluble PEO chains, and the hydrophilicity of the probe is improved greatly; by means of presence of a linking group, the whole conjugate plane is enlarged, and the fluorescence property of the probe is improved; a triphenylphosphine cation is introduced to the position of the linking group, so that the linking group serving as a targeting group can be specifically bound to the mitochondrion. The invention further provides the application of the mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe in living cell imaging and provides an application method of the mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe. Experiments prove that the fluorescent probe enters cells easily, is good in cell uploading rate and good in cell permeability and cannot produce cytotoxicity.