30 results about "Molecular charge" patented technology

The invention discloses quaternized chitosan/siRNA (small interfering Ribonucleic Acid) composite particles and a preparation method thereof. Electrostatic interaction between a quaternary ammonium group with positive charges and a siRNA molecule with negative charges on quaternized chitosan is used as driving power; molecule self-assembly is initiated in a water phase through vortex oscillation; and the high-bioactivity quaternized chitosan/siRNA composite particles with controllable size and surface charge are prepared by adjusting and controlling parameters such as molecular charge ratio, incubation temperature and incubation time. According to the quaternized chitosan/siRNA composite particles and the preparation method thereof, the quaternized chitosan is used as a siRNA transfer carrier, and the material has low cytotoxicity, wide source and low cost; a preparation process of the composite particles has mild conditions and is simple and practical; and the bioactivity of the siRNA can be effectively kept. The siRNA used for preparing the composite particles can be effectively intaken by cells and a mum effect of the target gene can be induced aiming at specific design of a target gene; and the composite particles have good application prospect in the fields of cancer treatment, tissue regeneration and repair and the like.

A soil stabilization composition is provided. The soil stabilization composition includes sulfuric acid, citric acid, phosphoric acid, nonlyphenol90, and water. The soil stabilization composition is capable of changing the molecular charges of swelling clays to resist water absorption rather than to attract water due to the positive/negative charges related to them. This ionic exchange prevents the clay from swelling making the clay more stable to build on.

Process for water purification and for the separation of beneficial materials that are obtained from an aqueous solution, comprising determining a turbidity index and adding to the water or to said solution a composition comprising one or more natural or mixtures of natural substances, chosen from the group consisting of substances having a cationic molecular charge and substances having an anionic molecular charge, in an amount determined as a function of said turbidity index, thereby, allowing water purification and the aggregation of said beneficial materials

The invention relates to an application method of a ratio-type cyanide ion fluorescent probe molecule. The invention belongs to the technical field of anion detection. The method is characterized in that the method is an application of a ratio fluorescent probe molecule, which is 1,2,2,3-tetramethyl-4,5-benzoindoline, used in cyanide ion detection. The probe molecule is obtained by a one-step process of periodic methane alkylation of 2,3,3-trimethyl-4,5-benzindole. In a system where DMF:H2O=1:1 (V/V), the probe molecule is excited by using 320nm light, and emission occurs at 461nm. When cyanide ion is added, intra-molecular charge transfer (ICT) process is broken, emission peak at 461nm is reduced, and new emission peak occurs at 425nm. Therefore, solution fluorescence is turned from bluish green to deep blue. In a system wherein cyanide ion coexists with other anions, the probe molecule shows high interference resistance, high specificity, and high sensitivity.

A composition of matter is provided that results in a change of electrical properties through intra-molecular charge transfer or inter-molecular charge transfer or charge transfer between a molecule and an electrode, wherein the charge transfer is induced by an electric field.

The invention discloses a fluorenyl-carborane photoelectric material as well as a preparation method and application thereof. The fluorenyl-carborane photoelectric material is a carborane organic photoelectric material based on intramolecular charge transfer intelligent regulation and control and has a fluorenyl-carborane conjugated asymmetric o-A structure. The general formula of the chemical structure of the material is shown in the specification, the main structure skeleton of the material is donor-acceptor configuration, fluorenyl is an electron donor, o-carborane is an electron acceptor,and the photoluminescence behavior of the material is accurately adjusted by virtue of molecular charge transfer. Under the stimulation of external conditions, the material has multiple light-emittingbehaviors comprising aggregation-induced emission, crystallization-induced emission, circular polarization emission and room-temperature phosphorescence, which are related to the asymmetric donor-acceptor conformation. The material has a wide application prospect in the fields of information storage, 3D display, anti-counterfeiting marks, 3D glasses, induction, biological imaging, light emittingdevices and the like.

The present invention discloses a multifunctional recovery physiotherapy instrument of novel polarization oscillation wave depth thermotherapy. The multifunctional recovery physiotherapy instrument comprises a high frequency oscillation generator connected with a hand-held electrode and a pedal electrode, and an oscillation wave is introduced from the feet, the hands or other parts of a human body via the electrodes, so that a polarization oscillation energy wave similar to the pulse discharge between the capacitor plates is formed between the two electrodes, and accordingly, the human body cell molecular charges generate a polarization displacement heat effect to form the depth thermotherapy. The heat is generated by the cell resonance, so that the body depth heating is more uniform, the human body does not feel discomfort when the temperature in the body rises to 42 DEG C, and the body lesion location can be heated directionally and effectively, and accordingly, the unique effects of killing viruses, eliminating inflammation, restraining tumors and cancer cells, etc., are realized. The multifunctional recovery physiotherapy instrument can be widely suitable for the treatment of various inflammations and tumors, is small in size and remarkable in curative effect, is simple and convenient to use and operate, is safe and reliable, is suitable for being used at the places, such as the hospitals, the health centers, nursing homes, etc., and has a great practical value.

The present invention discloses a pre-wash composition having from about 0.1% to about 12.0% of a sebum modifier material or mixture of sebum modifier materials, wherein the sebum modifier material has the following physical properties: i.) Molecular charge surface area higher than −8; and ii.) Shadow length greater than 18; from about 88 wt. % to about 99.9 wt. % water carrier; and from about 0.1 wt. % to about 5 wt. % emulsifier selected from the group consisting of anionic, non-ionic, cationic and amphoteric.

The present invention relates to photosensitizers having aggregation-induced emission (AIE) properties and efficient singlet oxygen generation. They have a maximum absorption peak in the visible region of about 490 nm, with dark red/near infrared emission (> 650 nm). The antibacterial performance can be improved by adjusting the number of molecular charges of the AIE photosensitizer. The AIE photosensitizer provided by the invention can selectively image and kill bacteria, and does not influence mammalian cells. Under the irradiation of white light, the AIE photosensitizer with two positive charges has good antibacterial performance on gram-negative bacteria and gram-positive bacteria; in a dark field, the AIE photosensitizers with two positive charges also have good antibacterial performance on gram-positive bacteria. The AIE photosensitizer with a positive charge is an efficient antibacterial agent for gram-positive bacteria, and can efficiently inhibit the proliferation of gram-positive bacteria in mammalian cells in a dark field.

The invention provides a diamine monomer containing a pyrazine structure as shown in formula I. In polyimide prepared from the diamine monomer, the electron affinity can be enhanced due to the existence of nitrogenous aromatic rings, so that the electron transmission property is improved, the intermolecular and intra-molecular charge transfer interaction of polyimide is weakened and the ultraviolet visible light transmittance of polyimide is enhanced; a lateral group is introduced into the diamine monomer containing the pyrazine structure, so that the mechanical properties and thermal properties of polyimide are not damaged while dense accumulation of molecular chains of polyimide is effectively reduced and solubility of polyimide in an organic solvent is enhanced; according to the disclosure of embodiments, the polyimide prepared from the diamine monomer containing the pyrazine structure provided by the invention has high heat stability, high mechanical strength, higher photo-permeability, excellent solubility and wide application value in the photoelectric field.

The invention discloses a bifunctional fluorescent probe capable of respectively detecting a pH value and a Pd0 concentration, and the structural formula of the bifunctional fluorescent probe is shownas a formula (I): 1,8-naphthalimide is used as a fluorescent parent nucleus, and the pH value and the Pd0 concentration can be respectively detected through the combination of two fluorescent light-emitting mechanisms: photo-induced electron transfer and intra-molecular charge transfer.

Vaccines with increased immunogenicity, distinct in that in the capacity of a specific immunogenic component, whole vaccine antigens or vaccine antigens that have been cut into oligomer fragments are used; the mixture (assembly) of oligomer fragments or whole antigen obtained is modified by changing its molecular charge to the opposite.

The invention discloses a high-sensitivity molecular potential analyzer. The high-sensitivity molecular potential analyzer mainly comprises a sample feeding device, a sample fluidization device, a molecular charge carrier device, a molecular potential converting device, an active molecular electrode device, a standard molecular electrode device, a molecular potential calibration device, a potential signal amplifying device, a potential signal transduction device and a molecular potential signal displaying and recording device, wherein the molecular charge carrier device comprises a molecular charge carrier film; the material of the carrier film is a tribenzyl thiazole hexapyrimidine hafnium pentafluoride nano composite film; the thickness of the film is 0.55 micron; the molecular potential converting device comprises a molecular potential converting electrode, and the material of the electrode is an ethylketone benzyl pentachloride tripropylamine darmstadtium hexabromide composite electrode material; the active molecular electrode device comprises a molecular electrode, and the material of the electrode is a pentapyridine diphenylnitrile triphenylamine iodine rutherfordium composite electrode material.