19 results about "Chlorophyll derivatives" patented technology

The invention relates to a chlorophyll derivative-based efficient nickel oxide-based perovskite solar cell, and belongs to the technical field of perovskite solar cells. The perovskite solar cell sequentially comprises a transparent conductive glass anode, a hole transport layer, a chlorophyll derivative passivation layer, a perovskite layer, an electron transport layer, a hole barrier layer and a metal cathode from bottom to top, the hole transport layer is nickel oxide; and the chlorophyll derivative passivation layer is a chlorophyll derivative layer containing trifluoroacetate. The perovskite solar cell is an efficient nickel oxide-based perovskite solar cell with chlorophyll derivatives containing trifluoroacetate as a hole transport layer and a perovskite layer interface passivation layer, and the photoelectric conversion efficiency of the perovskite solar cell can reach 25.54%. According to the preparation method of the perovskite solar cell, the synthesis process is simple and easy to implement, the requirement for equipment is low, and the preparation method has a good industrial application prospect.

The present application relates to a kind of high efficient stable perovskite solar cell based on chlorophyll derivative and preparation method thereof, belong to perovskite solar cell technical field.Solve the problem that the photoelectric conversion efficiency and stability of existing perovskite solar cell still need to be further improved.The perovskite solar cell of the present application includes transparent conductive glass anode, hole transport layer, chlorophyll derivative lower layer containing trifluoroacetate and central copper ion, perovskite layer, chlorophyll derivative upper layer containing trifluoroacetate and central copper ion, electron transport layer, hole blocking layer and metal cathode in turn from bottom to top.The present application sets up chlorophyll derivative layer as interface modification layer by being arranged in the upper and lower of perovskite layer, and by selecting suitable chlorophyll derivative containing trifluoroacetate and central copper ion as chlorophyll derivative layer material, further improve the photoelectric conversion efficiency and stability of perovskite solar cell, and its photoelectric conversion efficiency is as high as 26.34%.

The present disclosure relates to a compound of general forma (I) or (II) or a pharmaceutically acceptable salt thereof Furthermore, the present disclosure relates to the use of said compound in medicine, in particular in photodynamic therapy (PDT) of cancer, as well as in diagnostic. (Formula I) (Formula II)

The present application relates to a kind of high-efficiency hole transport layer of undoped nickel chlorophyll derivative perovskite solar cell and its preparation method, belong to perovskite solar cell field.The perovskite solar cell includes from bottom to top:transparent conductive glass anode, hole transport layer, perovskite layer, electron transport layer, hole blocking layer and metal cathode;The hole transport layer is polymeric chlorophyll film Poly (NiChl-Deoxo) or Poly (NiChl-CN).The present application uses undoped nickel chlorophyll derivative as hole transport layer, which significantly improves the energy conversion efficiency of perovskite solar cell, and makes it reach the highest power conversion efficiency of 21.8%.The perovskite solar cell of the present application shows excellent stability under long-term test.After 2600 hours of environmental exposure test, the device can still maintain 95% of the initial efficiency, showing good durability and reliability, suitable for long time use.

The present invention relates to an adsorbent for treating an oil comprising a chlorophyll derivative. In particular, the present disclosure relates to an improved silica gel adsorbent for removing impurities, including chlorophyll derivatives and / or trace metals, from an oil, in particular triacylglycerol-based oils. The adsorbent comprises a silica gel treated with an alkali earth metal oxide, such as magnesium oxide, and has a pH of about 7 or greater and a water content of about 3 wt % or greater.

This invention belongs to the pharmaceutical field, and provides a chlorophyll derivative microneedle formulation, its preparation method, and its uses. The chlorophyll derivative microneedle formulation comprises the following raw materials by weight: 0.5-5 parts chlorophyll derivative, 5-20 parts excipient, 0.5-5 parts polysaccharide, and 70-94 parts solvent. The preparation method is as follows: the pH of the chlorophyll derivative dissolved in the solvent is adjusted to 6-8, and then the co-solvent, polysaccharide, and excipient are added to obtain a mixed solution; the mixed solution is loaded into a microneedle mold, vacuum-suctioned, and dried to obtain an integrated chlorophyll derivative needle. This microneedle can improve the targeted and transdermal drug delivery effect and drug utilization rate of the chlorophyll derivative, and the preparation method can improve the stability of the chlorophyll derivative and increase the local drug concentration at the affected area.

The application relates to the technical field of pollutant treatment, and provides a method for degrading PFAS by chlorophyll-Cu derivatives / H2O2 and application thereof. The method for degrading PFAS provided by the application comprises the following steps: mixing a mixture containing chlorophyll-Cu derivatives and an H2O2 aqueous solution to obtain a mixture containing chlorophyll-Cu derivatives and H2O2; and mixing the mixture containing chlorophyll-Cu derivatives and H2O2 with a substance containing PFAS to make the PFAS degrade. The chlorophyll-Cu derivatives and H2O2 provided by the application can synergistically break the C-F bond in the PFAS, overcome the difficulty that the C-F bond is difficult to break in the prior art, and significantly improve the degradation efficiency of the PFAS.

The present application relates to a kind of high-efficiency nickel oxide-based perovskite solar cells based on chlorophyll derivatives, belong to perovskite solar cell technical field.The perovskite solar cell includes transparent conductive glass anode, hole transport layer, chlorophyll derivative passivation layer, perovskite layer, electron transport layer, hole blocking layer and metal cathode from bottom to top in sequence;The hole transport layer is nickel oxide;The chlorophyll derivative passivation layer is the chlorophyll derivative layer containing trifluoroacetate.The perovskite solar cell of the present application is high-efficiency nickel oxide-based perovskite solar cell with chlorophyll derivative containing trifluoroacetate as hole transport layer and perovskite layer interface passivation layer, and photoelectric conversion efficiency can be as high as 25.54%.The preparation method of the perovskite solar cell of the present application, its synthesis process is simple and easy to operate, and has good industrial application prospect with low equipment requirement.

The invention belongs to the technical field of antifungal drugs, and discloses a mitochondria-targeted antifungal nano sound-sensitive agent as well as a preparation method and application thereof. The mitochondrial targeting type antifungal nano sound-sensitive agent comprises purpurine 18, tannic acid and copper ions. According to the nanometer sound-sensitive agent, a stable nanometer network structure is constructed through the coordination effect of metal polyphenols, chlorophyll derivatives with mitochondrial affinity are carried, the nanometer sound-sensitive agent can efficiently enter fungal cells and can be selectively enriched in mitochondria, and precise delivery of fungal mitochondria is achieved. Under ultrasonic activation, the nanometer sound-sensitive agent generates active oxygen at a targeting site, mitochondria oxidative damage is induced, then cell walls and membrane structures are destroyed, and therefore efficient fungus killing is achieved, and the nanometer sound-sensitive agent has good clinical transformation prospects.

This invention discloses a gallium oxide photoelectric synapse device doped with chlorophyll and its fabrication method. The method includes: cleaning a conductive substrate; mixing a solution containing a zinc chlorophyll derivative with a solution containing a polymer, a complexing agent, and a gallium source under an inert atmosphere to obtain a composite precursor solution; spin-coating the solution onto the substrate to form a wet film; obtaining a composite gallium oxide thin film through a two-stage programmed temperature rise heat treatment; and finally depositing a top electrode to obtain the device. This invention utilizes a polymer-complexing agent system to stabilize the gallium source and uses a low-temperature process to fix chlorophyll in situ, avoiding the destruction of biological activity by high temperatures. The resulting device has a sandwich structure, combining the high electron mobility of gallium oxide and the broad-spectrum absorption characteristics of chlorophyll. It can simulate the short-term and long-term plasticity of biological synapses at low power consumption and has a sensitive response to both ultraviolet and visible light, making it suitable for artificial vision systems and neuromorphic computing.

This application relates to the field of pollutant treatment technology, and provides a method for synergistic phosphorus removal using chlorophyll-La derivatives / nano-rare earth-based complexes and its application. The synergistic phosphorus removal method provided by this application includes: adding a mixture of nano-rare earth-based complexes and chlorophyll-La derivatives to phosphorus-containing pollutants, followed by phototreatment to remove phosphorus; wherein the phosphorus-containing pollutants are selected from phosphorus-containing water bodies or phosphorus-containing soil; the nano-rare earth-based complexes include nano-lanthanum oxide, nano-chitosan, modified calcium and magnesium mineral materials, biochar, zeolite, excipients, and regulators. The synergistic phosphorus removal method using chlorophyll-La derivatives / nano-rare earth-based complexes employed in this application can achieve efficient and green phosphorus removal and shorten the phosphorus removal cycle.

To provide an oral microbiota improver that selectively and efficiently promotes growth of Neisseria and / or Rothia species in the oral microbiota, enabling effective improvement of the oral microbiota.SOLUTION: An oral microbiota improver comprising, as an active ingredient, one or two selected from chlorophyll metal complex salt derivatives and chlorophyll derivatives.SELECTED DRAWING: None

The present disclosure relates to a compound of general forma (I) or (II) or a pharmaceutically acceptable salt thereof Furthermore, the present disclosure relates to the use of said compound in medicine, in particular in photodynamic therapy (PDT) of cancer, as well as in diagnostic. (Formula I) (Formula II)

The purpose of the present invention is to provide a novel naturally derived cellular vesicle staining agent that can easily fluorescently stain cellular vesicles and that is safe even when introduced into the body, and to provide a cellular vesicle staining agent having anti-inflammatory activity. The purpose of the present invention is also to provide a method for producing a cellular vesicle staining agent, whereby the cellular vesicle staining agent can be easily produced. Another purpose of the present invention is to provide a method for detecting cellular vesicles using the cellular vesicle staining agent. The present invention provides: a cellular vesicle staining agent comprising chlorophyll or a chlorophyll derivative; an anti-inflammatory agent comprising chlorophyll or a chlorophyll derivative as an active ingredient; a method for producing a cellular vesicle staining agent, the method comprising a step for extracting a cellular vesicle staining agent from a photosynthetic organism; and a method for detecting a cellular vesicle in a sample or in a body using the cellular vesicle staining agent.

The invention relates to the technical field of pollutant treatment, and provides a chlorophyll-La derivative / nano rare earth-based compound synergistic phosphorus removal method and application thereof. The synergistic phosphorus removal method provided by the invention comprises the following steps: adding a mixture of a nano rare earth-based compound and a chlorophyll-La derivative into phosphorus-containing pollutants, and carrying out light treatment to remove phosphorus, wherein the phosphorus-containing pollutants are selected from phosphorus-containing water bodies or phosphorus-containing soil; the nano rare earth-based compound comprises nano lanthanum oxide, nano chitin, a modified calcium-magnesium mineral material, charcoal, zeolite, an auxiliary material and a regulator. The chlorophyll-La derivative / nano rare earth-based compound synergistic phosphorus removal method adopted by the application can efficiently and greenly remove phosphorus and shorten the phosphorus removal period.

The invention relates to a perovskite solar cell without a nickel chlorophyll derivative-doped efficient hole transport layer and a preparation method of the perovskite solar cell, and belongs to the field of perovskite solar cells. The perovskite solar cell comprises a transparent conductive glass anode, a hole transport layer, a perovskite layer, an electron transport layer, a hole barrier layer and a metal cathode from bottom to top, and the hole transport layer is a polymerized chlorophyll thin film Poly (NiChl-Deoxo) or Poly (NiChl-CN). The non-doped nickel chlorophyll derivative is used as the hole transport layer, so that the energy conversion efficiency of the perovskite solar cell is remarkably improved, and the highest power conversion efficiency of the perovskite solar cell reaches 21.8%. The perovskite solar cell disclosed by the invention shows excellent stability under a long-term test. After an environmental exposure test for 2600 hours, the device can still maintain 95% of initial efficiency, shows good durability and reliability, and is suitable for long-term use.

The invention relates to the technical field of pollutant treatment, and provides a method for synergistically degrading PFAS through chlorophyll-Cu derivative / H2O2 and application of the method. The method for degrading the PFAS comprises the following steps: mixing a mixture containing chlorophyll-Cu derivatives with an H2O2 aqueous solution to obtain a mixture containing the chlorophyll-Cu derivatives and H2O2; a mixture containing the chlorophyll-Cu derivative and H2O2 is mixed with a substance containing PFAS, so that the PFAS is degraded. The chlorophyll-Cu derivative and H2O2 have a synergistic effect, a C-F bond in PFAS can be efficiently broken, the problem that in the prior art, the C-F bond is difficult to break is solved, and the degradation efficiency of PFAS is remarkably improved.

The invention discloses a copper-sulfur mineral flotation separation inhibitor and application thereof, and belongs to the technical field of mineral processing. The inhibitor is a chlorophyll derivative or a combination of the chlorophyll derivative and an inorganic substance. The chlorophyll derivative is any one of sodium copper chlorophyllin, sodium iron chlorophyllin and sodium zinc chlorophyllin, and the inorganic matter is any one of calcium oxide, calcium chloride, sodium sulfide and sodium carbonate. The inhibitor can form a hydrophilic complex on the surface of pyrite, improves the hydrophilicity of the pyrite, can selectively inhibit the pyrite in a low-alkalinity environment, basically has no inhibition effect on copper sulphide ore, and can be applied to the field of chemical industry. The problems of consolidation, pipeline blockage, overhigh pH value of tailing water and the like caused by adding a large amount of lime during traditional high-alkali sulfur inhibition can be effectively avoided. The inhibitor is stable in property, small in dosage, safe, non-toxic and easy to add, and flotation separation of pyrite and copper sulphide ore can be effectively achieved.

The invention discloses a preparation method and application of a carbonic anhydrase simulant based on algae chlorophyll. According to the carbonic anhydrase simulant, algae powder rich in chlorophyll a serves as a raw material, a water-soluble chlorophyll derivative zinc / copper chlorophyllin trisodium salt (Zn / Cu-E6-3Na) is synthesized through chemical modification, the water-soluble chlorophyll derivative zinc / copper chlorophyllin trisodium salt (Zn / Cu-E6-3Na) is anchored to a zeolite imidazate framework (ZIF) carrier through a dual coordination mechanism, and the carbonic anhydrase simulant Zn-E6-3Na ZIF or Cu-E6-3Na ZIF composite material is formed. According to the invention, the chlorophyll derivative is directionally used for the catalytic function development of the CO2 hydration reaction for the first time, and the prepared derivative has good hydrophilicity brought by three carboxylic acid groups and high catalytic activity of a metalloporphyrin center; through ZIF immobilization, the problem of recovery of a homogeneous catalyst is solved, and the catalyst shows an obvious synergistic catalytic effect and cycling stability in CO2 hydration and reverse hydration (HCO3-dehydration) reactions. According to the invention, the traditional application range of chlorophyll derivatives is broken through, and a new strategy is provided for high-valued utilization of biomass resources and efficient and sustainable CO2 capture.