280 results about "Conjugated system" patented technology

The invention belongs to the technical field of organic synthesis, and particularly discloses an ammonia aromatic alkene modified near-infrared BODIPY fluorescent probe as well as a preparation method and application thereof.The near-infrared BODIPY fluorescent probe is obtained by adopting 6-(dimethylamino) nicotinic aldehyde to directionally modify the alpha position of BODIPY and constructing an expanded conjugated system through Knoevenagel condensation. Wherein dimethylamino provides a strong electron donating effect, a molecular structure is twisted into a non-planar configuration due to steric hindrance of a pyridine ring, pi-pi accumulation is reduced, and an ACQ effect is inhibited. According to the structural modification strategy, significant red shift of absorption / emission wavelength is realized by expanding a molecular pi-conjugated skeleton, and meanwhile, the stability of the BODIPY core and the quantum yield are effectively enhanced. The probe molecule can specifically recognize the diphenylalanine dipeptide structural unit by utilizing the synergistic coordination effect of the 2-aminopyridine derivative and the BODIPY mother nucleus, so that the selective detection of the Alzheimer's disease biomarker Abeta42 is realized, and a novel optical detection tool is provided for the early molecular diagnosis and targeted therapy of AD (Alzheimer's disease).

The invention discloses a self-assembled monomolecular material based on pyrene-carbazole diphosphate and a preparation method and application thereof, and belongs to the technical field of perovskite solar cells. According to the material, two carbazole units and a pyrene core are in conjugate connection to form a large conjugate plane structure, and the material has the following advantages: 1) a rigid molecular skeleton and an expanded conjugate system significantly improve thermal stability and chemical stability; 2) the conjugate plane of pyrene enhances intermolecular pi-pi accumulation, and promotes hole extraction and transmission; and 3) energy level matching is accurately regulated and controlled, a compact interface layer is formed, and electron-hole recombination is inhibited. When the hole transport layer is applied to the trans-perovskite solar cell, the photoelectric conversion efficiency and the long-term stability can be improved at the same time, and the hole transport layer has a good industrialization prospect.

The invention relates to the technical field of polymer dye synthesis, in particular to a polymer coloring agent based on a binary acid chromophoric monomer, a color master batch, a fiber and a preparation method of the polymer coloring agent. The structural formula of the diacid chromophoric monomer is as follows: # imgabs0. The chromophoric monomer has extremely high thermal stability, and can maintain the chemical structural integrity and chromophoric performance in a high-temperature environment (250 DEG C). The heat-resistant characteristic is mainly derived from a highly stable aromatic skeleton formed by a parent nucleus through an expanded conjugated system and a rigid plane structure, and heat vibration energy is effectively dispersed; in addition, a thermal stable group (an all-carbon skeleton) is introduced through side chain modification to form a steric hindrance effect, and molecular movement at high temperature is inhibited. Due to the unique heat resistance of the monomer, the monomer can be completely matched with a high-temperature processing window (240-300 DEG C) of a polyester melt polymerization process, and a polymer-dye composite system with a stable structure is constructed through covalent bonding in ester exchange and polycondensation processes.

The invention relates to the technical field of nuclear waste treatment, in particular to a cucurbituril-based supramolecular organic framework material as well as a preparation method and application thereof. A construction unit of the supramolecular organic framework material is constructed by taking cucurbit [8] uril (CB8) as a subject and terephthalyl viologen ligand 1, 1 ''-(1, 4-phenylene) bis ([4, 4 '-bipyridyl]-1-onium) salt (PBV. 2X) as an object through the bonding effect of the subject and the object; in the molecular structure of the supramolecular organic framework material, the construction units are staggered and stacked in parallel in the space, and NO3 <-> is located at the gap of the adjacent CB8. The supramolecular organic framework material disclosed by the invention has high structural stability and cationic framework characteristics, and a rigid framework and a pyridine conjugated system of CB8 endow the material with excellent chemical / irradiation stability, so that the material shows ultrahigh removal rate on ReO4 <-> / TcO4 <-> in extreme environments (strong acid, strong alkali and high irradiation).

The invention belongs to the technical field of organic electroluminescence, and discloses an organic metal iridium complex, a preparation method and an organic electroluminescence device containing the organic metal iridium complex. The structure of the organic metal iridium complex is as shown in formula I. According to the organic metal iridium complex provided by the invention, a nitrogen-containing heterocyclic functional group is introduced to a pyridine ring, and meanwhile, some electron withdrawing groups such as cyano or methyl and the like are added, so that the molecular configuration is changed, a conjugated system is enlarged, and the electrochemical characteristics of a compound are adjusted; after the obtained organic compound is applied to the organic electroluminescent device, the starting voltage of the device is reduced, the luminous efficiency of the device is improved, and the service life of the device is prolonged.

The invention belongs to the field of photocatalytic preparation of hydrogen peroxide, and relates to a porphyrin-based covalent organic framework material (IM) as well as a preparation method and application thereof. The material is synthesized through a Schiff base reaction of tetraaldehyde phenyl porphyrin and 2, 5-diamino-1, 4-benzenediol dihydrochloride, an imine bond connected covalent organic framework is formed, interlayer hydroxyl strengthens the structural orderliness and stability through hydrogen-bond interaction, a porphyrin large-pi conjugated system drives efficient transmission of electrons in the framework, and the separation efficiency of photon-generated carriers is improved. The obtained IM photocatalyst is good in crystallinity, a photocatalytic hydrogen peroxide production experiment shows that the hydrogen peroxide yield reaches 1470.24 [mu] mol.g <-1 > after IM reacts for 4 h under irradiation of an ultraviolet lamp, the yield is stably increased, and high catalytic activity and stability are shown. The method utilizes light energy for green synthesis of hydrogen peroxide under mild conditions, and provides an efficient and safe new strategy for hydrogen peroxide production.

The invention discloses a composite nano sound-sensitive agent as well as a preparation method and application thereof. According to the composite nano sound-sensitive agent provided by the invention, a conjugated system of the narrow-gap semiconductor nano sound-sensitive agent core / the ferric oxide nano functional layer / the surface targeting antibody is constructed, so that multi-mode synergy integrating sonodynamic therapy, ferroptosis induction and immunoregulation is realized. The composite nano sonosensitizer further has precise targeting, efficient sonodynamic effect, ferroptosis enhancement effect and good biocompatibility, a targeting antibody on the surface of the composite nano sonosensitizer can specifically recognize high-expression antigens on the surfaces of tumor cells, and dual-targeting enrichment of a treatment system is achieved in combination with magnetic responsiveness guidance; the coating of the iron oxide nanoparticles obviously enhances the sound-sensitive performance of the inner core of the sound-sensitive agent, improves the ROS generation efficiency, and overcomes the hypoxia limitation of the tumor microenvironment; iron oxide is used as an iron source to continuously release Fe < 2 + >, and cooperates with ROS generated by sonodynamic therapy to induce ferroptosis, so that a ferroptosis enhancing effect is generated.

The invention discloses a carbazole derivative as well as a preparation method and application thereof, a pi conjugated system of carbazole is expanded by introducing a thiophene unit, and (4-(3, 6-di (thiophene-3-yl)-9H-carbazole-9-yl) butyl) phosphonic acid (4PAThCz) is designed. Compared with classical 2PACz, the 4PAThCz shows long-range orderliness and compact pi-pi accumulation, and the molecular dipole moment is enhanced. In addition, the distorted molecular structure of 4PAThCz is helpful to improve solubility and inhibit excessive self-aggregation. The characteristics facilitate hole extraction and transmission, inhibit carrier recombination in a photovoltaic device, and facilitate preparation of an efficient and stable solar cell.

The application relates to a method for enhancing electrochemiluminescence signals by ion-pi interaction, belonging to the fields of electrochemiluminescence and analytical chemistry. 2+ By modifying the working electrode with a conjugated pi system, cation-pi interaction is introduced into the Ru(bpy)3 / triethylamine (TEA) system, efficient enrichment of TEA protonated cations near the electrode is realized, thereby greatly enhancing the electrochemical reaction rate and ECL signal. Further, anion-pi interaction is utilized to realize ECL signal enhancement of the luminol ECL system. In addition, the conjugated pi system is exposed to the outermost boundary of the electrode, so as to provide effective ion-pi interaction for ECL; when the pi system is covered by an alkyl chain, the modified electrode can only exhibit hydrophobic interaction. The method disclosed by the application provides a new strategy for extending ion-pi interaction to all types of ECL systems and constructing a high-sensitivity ECL analysis platform.

The invention discloses a BODIPY derivative, a nano preparation, a corresponding preparation method and application, and the BODIPY derivative is prepared by taking BODIPY as a mother nucleus and adjusting substituent groups and expanding a conjugated system. According to the BODIPY derivative and the nano preparation, the emission wavelength can extend to an NIR-II region, and the BODIPY derivative and the nano preparation can be used for preparing a medicine for inhibiting tumor cell growth or a near-infrared two-region fluorescence imaging agent.

The invention describes a method for manufacturing a sodium-ion battery cell (1), comprising the steps of: providing an anode (A) and a cathode (K), inserting the anode (A) and the cathode (K) into a fluid-tight shell (2), and adding an additional electrolyte (EL-Z) to the shell (2), which contains as an additive a sodium salt (6) having an anion comprising a conjugated system of at least two aromatic compounds. The invention further describes a corresponding electrolyte (EL-Z) for a sodium-ion battery cell (1).

The application discloses a preparation method of transparent conductive adhesive film, and particularly relates to the technical field of conductive adhesive film preparation, which comprises the following specific steps: S1, preparing conductive liquid, which can be prepared by adding 30-50 parts of metal oxide powder and 20-30 parts of polyanion in a π conjugated system conductive polymer into a blender; S2, mixing materials; S3, cleaning a mold; S4, injection molding; S5, secondary conductive film coating; S6, vacuum molding; S7, film cutting molding. The application can fully extrude and mix various conductive materials by injecting the mixed materials into a molding mold, pulling the upper mold of the molding mold upward, adding the other half of the conductive liquid into a centrifugal machine, and placing the secondary transparent conductive film into a vacuum molding machine for film pressing, so that the gaps between the conductive materials are reduced and the compactness is improved, and thus the conductivity is better.

The invention relates to a double-response visual fluorescent probe as well as a construction method and application thereof. According to the present invention, carboxyl activation is performed on rhodamine B, Eu < 3 + > fixes the carboxyl of TAT through bridging and chelation, the Rh B can be combined with EuTAT through the amide reaction due to the steric hindrance effect of the asymmetric amino group to obtain the spirolactam ring so as to obtain the switch fluorescent probe controlled by the spirolactam ring, and the synthesized EuTAT-Rh B compound has characteristics of pH responsiveness and low fluorescence background, according to pH-dependent morphological structure conversion and fluorescence signal conversion caused by conjugate system change induced by vanadate coordination, visual vanadate solution monitoring and synchronous morphological discrimination can be realized in ultraviolet and fluorescence dual channels, and a convenient, simplified and highly sensitive visual platform is provided for visual analysis of vanadate.

The invention provides a plating bath for preparing a titanium-based lead dioxide electrode through electro-deposition and a preparation method of the plating bath, and relates to the field of plating baths, and the plating bath comprises lead p-toluenesulfonate, p-toluenesulfonic acid, fluoride of alkali metal and a dopant. The titanium-based lead dioxide electrode plating bath selects lead p-toluenesulfonate as a main salt and p-toluenesulfonic acid as an acid source, on one hand, the p-toluenesulfonic acid has a weak complexing effect and can form a complex with lead ions in the plating bath, the polarization effect of electro-deposition is increased, the compactness of a lead dioxide electro-deposition layer is improved, and the electrode stability is improved; on the other hand, p-toluenesulfonic acid serving as a hydrophilic organic molecule containing a large-pi conjugated system can be adsorbed on the surface of a lead dioxide crystal, growth of the lead dioxide crystal is regulated and controlled, electrodeposition distortion and internal stress of a lead dioxide active layer are reduced, and the accelerated life of an electrode is prolonged; and meanwhile, the p-toluenesulfonic acid can promote the dominant growth of beta-PbO2 with high catalytic activity, and is beneficial to improving the electrocatalytic activity of the titanium-based lead dioxide electrode.

The invention relates to the technical field of organic photoelectric materials and photovoltaic devices, in particular to a fluorine-substituted benzimidazolyl aniline compound and a synthesis method and application thereof. The structural general formula of the compounds is as shown in a formula I in the specification. The compound is introduced into a perovskite precursor solution as an additive and is used for preparing a perovskite thin film and a trans-perovskite solar cell. According to the compound provided by the invention, synergistic passivation of multi-site defects such as uncoordinated Pb < 2 + > and iodine vacancies is realized through aniline amino and benzimidazole ring N atoms in molecules, and non-radiative recombination is remarkably reduced; the strong electronegativity of fluorine atoms can enhance the electrostatic interaction between molecules and a perovskite Pb-I skeleton, meanwhile, a large conjugated system promotes pi-pi accumulation, and experimental results show that the photoelectric conversion efficiency of a champion device based on the additive can reach 23.3%; .

The invention relates to a preparation method of a high-performance ink material for a writing pen, and belongs to the technical field of ink materials. The high-performance ink material for the writing pen is obtained by self-making the modifier and blending the modifier with the pigment and other auxiliaries, and the modifier connects the benzotriazole with the hydroxypyridine, so that a conjugated system is expanded, the ultraviolet absorption strength of the modifier is higher, the efficiency is higher, and the ink material is more suitable for the writing pen. Ether introduced by pyridine can be used as a hydrogen bond acceptor to form a hydrogen bond with resin in an ink system, so that the ultraviolet light absorber is prevented from being separated out; quaternary ammonium salt cations in the modifier can improve the adhesive force and color fastness of the ink and the friction resistance and water resistance after writing; meanwhile, tert-butyl in the modifier reduces surface tension through steric hindrance, promotes leveling of ink and ink mark uniformity and enhances dispersion stability among resin, auxiliaries and pigment, so that the ink is not prone to layering and deterioration after being placed for a long time.

The application discloses a spiropyran derivative with color and fluorescence dual switch, a photochromic material and a preparation method and application thereof, the spiropyran derivative is a compound with a chemical structure general formula (1); and further discloses a photochromic material prepared by mixing the spiropyran derivative with an epoxy resin and a preparation method thereof. The aromatic fluorescent group is introduced into the side group of the spiropyran material, the conjugated system of the fluorescent group itself is large, and thus the fluorescence emission intensity after the spiropyran is opened is increased. The compound shows good photochromic and photoluminescent effects in organic solvents and solid media; the fluorescent group and the spiropyran material are combined, and a molecular switch material with significant color and fluorescence changes can be prepared; the spiropyran derivative can be used for preparing a two-dimensional optical display device and an intelligent material molecular switch.

The application discloses a kind of tetraphenyl ethylene-chalcone derivative preparation and its application preparation and its application.The structure is as follows: the method includes: 4-(1,2,2-triphenyl ethenyl) acetophenone, aldehyde derivative, sodium hydroxide (provides alkaline condition, pH=8.3~8.5), is placed in anhydrous ethanol, under the condition that heating temperature is 80 DEG C, reflux reaction 12h, after reaction is ended, the functional organic material is separated and purified.The functional organic material synthesized according to the above method has larger conjugated system, and has significant pressure-induced color change characteristics.The functional organic material disclosed in the application has low preparation cost, simple operation, simple method, and the material shows significant pressure-induced color change characteristics, can be applied to pressure-induced color change, luminescent material, printing and dyeing, color printing and anti-counterfeiting technical field.

The invention belongs to the technical field of perovskite solar cells, and particularly discloses a self-assembled monomolecular layer material with binaphthalene as a framework and a preparation method and application of the self-assembled monomolecular layer material. Phosphoric acid serves as an anchoring group, binaphthalene with a large pi conjugated system serves as the molecular framework, and the self-assembled monomolecular layer material is prepared. Intermolecular interaction can be effectively promoted, and molecular arrangement of molecules on an ITO conductive substrate can be regulated and controlled. By adjusting the side chain group of binaphthalene, the energy level of the material can be optimized, the work function of ITO can be improved, and efficient extraction and transmission of interface holes can be promoted. According to the synthesis method, the final product is obtained by oxidizing hydroxyl through phosphorus oxychloride, and the synthesis method has the advantages of being simple, high in yield, low in cost and the like. When the material is applied to a perovskite solar cell, the photoelectric conversion efficiency exceeding 25% can be obtained, and industrial application of the material is facilitated.

Provided is a polyorganosiloxane having a structure represented by formula (1), wherein the number-average molecular weight of the polyorganosiloxane is 10,000-40,000 and the ratio of the number-average molecular weight to the average number (N(A-B)) of bonds A-B contained in one molecule of the polyorganosiloxane, Mn / N(A-B), is 5,000 or greater. (In formula (1), the R moieties each independently represent a group represented by the A-B or a C1-C4 monovalent hydrocarbon group, at least one of the R moieties represents the group represented by A-B, the A represents a divalent organic group bonded to a silicon atom, the B represents three or more conjugated ring structures that form a shared conjugated system, and n is an integer of 1 or larger.)

The invention relates to 200 light, thin and wear-resistant underpants fabric, and belongs to the technical field of fabric. A self-made antibacterial chain extender participates in preparation to obtain modified spandex filaments, and then the modified spandex filaments and cotton fibers are made into the underpants fabric; the quaternary ammonium salt of the antibacterial chain extender can be combined with bacterial cell membranes and interfere cell metabolism, so that efficient bacteriostasis is realized; the flexible long-chain alkyl group has a plasticizing effect, the elasticity loss of the fabric after liquid ammonia finishing is relieved, an amido bond and a cotton fiber hydroxyl group form a hydrogen bond, the interface bonding is enhanced, the layering of a spandex filament and a cotton fiber is avoided, a polycyclic aromatic fused ring and the amido bond form a conjugated system, an intermolecular strong hydrogen bond is matched, the high-temperature stability of the spandex is improved, and the methoxy group can consume chlorine; a conjugated system stabilizes nitrogen-hydrogen bonds, condensed ring steric hindrance hinders chlorine attack, chlorine resistance of the fabric is enhanced, underpants are not prone to loosening and deformation after being worn for a long time, and elasticity and wrapping feeling are kept for a long time.

The invention discloses a silver-pi conductive polymer gel material, a preparation method thereof and application of the silver-pi conductive polymer gel material in hydrazine vapor sensing. The material is constructed by precise self-assembly of A, A '-bispyridine hydrazone functionalized column [5] arene macrocycles and silver (I) ions through coordination driving. Through Ag-N coordination, Ag.... pi interaction and multiple C-H.... pi / pi.... pi accumulation, a gel network with an extended conjugated system and conductivity is constructed. Based on a'multi-site cooperation-enhanced capture and recognition 'strategy, the gel material can realize high-selectivity and high-sensitivity detection on hydrazine steam through three signal channels of electrochemistry, colorimetry and fluorescence, and the electrochemical detection limit is as low as 5 ppb. The method has a wide application prospect in the field of toxic pollutant gas sensing and monitoring.

The present invention discloses the preparation and application of a quinoline-dithiazolidine derivative, and studies the effects of substituents and π-conjugated systems on optical properties. The method comprises dissolving a quinoline derivative and dithiooxamide (2,5-diamino-1,4-benzenedithiol dihydrochloride) in N,N-dimethylformamide solvent, stirring at 120°C for 12 hours, and then separating and purifying to obtain the fluorescent dye. The product synthesized by the present invention has a large conjugated system, and the solid fluorescence can be regulated accordingly with changes in the substituents. The preparation method of this type of fluorescent dye is simple and easy, the raw materials are simple and readily available, the cost is low, and it has good performance. It can be applied in the fields of luminescent materials, fluorescent inks (printing materials), anti-counterfeiting materials, printing and dyeing industries, sensors, etc.

The invention provides a light-emitting auxiliary material and a preparation method and application thereof, and belongs to the technical field of light-emitting materials, the structural formula of the light-emitting auxiliary material is shown in the general formula I. The light-emitting auxiliary material takes 9, 9-phenylalkyl fluorene as a parent nucleus, aryl and arylamine groups are connected to the two sides of fluorene of the 9, 9-phenylalkyl fluorene respectively, 9-phenylalkyl fluorene has relatively high glass transition temperature and quantum fluorescence efficiency, the stability and luminous efficiency of the compound can be effectively improved, the energy levels of the highest occupied molecular orbital and the lowest unoccupied molecular orbital can be flexibly adjusted by introducing an electron-donating group arylamine, and the energy barrier of hole injection can be effectively reduced; meanwhile, the other side is connected with an aryl group, so that a conjugated system can be effectively extended, a fluorescence quenching phenomenon caused by intermolecular pi-pi accumulation and excessive molecular aggregation is reduced, the service life of an OLED (Organic Light Emitting Diode) device can be effectively prolonged, the luminous efficiency of the OLED device can be effectively improved, and the driving voltage can be reduced by utilizing the light-emitting auxiliary material.

The invention discloses a preparation method of a liquid crystal polymer and a composition thereof and application of the liquid crystal polymer and the composition in electromagnetic shielding materials, and relates to the technical field of organic polymer materials. The invention aims to solve the problem that the conventional electromagnetic shielding material cannot have high mechanical property, conductivity and processability at the same time. According to the invention, thiophene molecules are introduced into the molecular structure of the liquid crystal polymer, so that the liquid crystal polymer has a certain conductive characteristic, and a pi electron cloud in the thiophene molecules forms a conjugated system in the molecules, so that electrons can be freely transmitted in the molecules, thereby generating a semiconductor characteristic. And then the liquid crystal polymer with the conductive property is compounded with a certain amount of carbon fibers, so that the surface resistivity of the material is further reduced, the conductive performance is improved, and the good electromagnetic shielding effectiveness is further obtained. The invention can obtain the preparation method of the liquid crystal polymer and the composition thereof and the application of the liquid crystal polymer and the composition thereof in an electromagnetic shielding material.

The application discloses a kind of sulfur indium zinc azine-based covalent organic framework composite materials and its preparation and application in photocatalytic reduction carbon dioxide.The application combines in-situ growth strategy with inorganic semiconductor ZnIn2S4 and COFs with large π conjugated system and excellent chemical stability to form a composite catalytic material.The composite catalytic material can realize the full reaction of carbon dioxide photocatalytic reduction without sacrificial agent and cocatalyst, and thus has great application potential in the field of photocatalysis.

The invention provides a development method of a large conjugated system spiropyrane photochromic material, which successfully introduces naphthalene and benzofuran units into a spiropyrane molecular skeleton through screening and optimization of multi-step organic chemical reaction conditions, and develops a series of large conjugated system spiropyrane photochromic micromolecular materials. Under the irradiation of 365 nm ultraviolet light or natural light, the absorption spectrum of the series of molecular materials can generate obvious red shift, and meanwhile, the free volume of molecules is obviously increased, so that the material can generate obvious photochromic phenomenon in a pure solid state, several large conjugated system spiropyrane materials all turn into blue systems after the irradiation of a light source, and the photochromic effect is good. By means of the development method of the large conjugated system spiropyrane photochromic material, various photochromic materials with the absorption spectrum obviously changed and the molecule free volume obviously increased after ring opening isomerization can be obtained, the photochromic capacity and reversibility of the materials are greatly improved, and regulation and control of the color of the photochromic materials are achieved.

The invention belongs to the technical field of organic electroluminescent functional materials and devices, and particularly relates to a triazine derivative containing pyridine and carbazole substituent groups and application of the triazine derivative. According to the invention, pyridine and carbazole are introduced to a substituent group of triazine, so that a conjugated system of the material is enhanced, and the electron transport performance and thermal stability of the compound are improved. The organic electroluminescent device prepared from the organic electronic material has the advantages of lower driving voltage, higher external quantum efficiency and longer service life.

The invention discloses a catalyst for wastewater COD (Chemical Oxygen Demand) in-situ degradation and a preparation method of the catalyst, and belongs to the field of catalysts. A four-stage synergistic catalysis system of a metal phthalocyanine active matrix, a thiophene conjugated bridging chain, a cyclodextrin functional modification layer and a cross-linked network skeleton is adopted; the catalyst has the characteristics of controllable reaction path, designable product structure and efficient catalytic performance, a metal phthalocyanine compound matrix is used as a core active unit, a catalytic active center is formed through metal-nitrogen coordination, and a thienyl bridged ring structure is used as an electron transfer carrier, so that the catalytic activity of the catalyst is improved. A continuous electron channel for connecting a phthalocyanine active center and a cross-linked network is constructed through a conjugated system, electron migration is accelerated, a cyclodextrin functional modification layer serves as a performance optimization unit, and an adaptive bridge of the catalyst and a wastewater system is constructed through subject-object inclusion and hydrophilic modification, so that the performance of the catalyst is improved. Finally, a synergistic catalysis system with active center capable of efficiently generating active oxygen, conjugate bridging capable of guaranteeing electron transfer and cyclodextrin capable of optimizing application performance is formed.

The application provides a method for monitoring lipid oxidation tendency, and belongs to the technical field of fluorescent probe detection. The method utilizes the fluorescence characteristics of a BODIPY molecular probe, and through selecting a molecular probe with a specific structure, directional reaction occurs between the BODIPY molecular probe and oxygen free radicals generated by lipid oxidation at a specific pH value. The conjugated system of the BODIPY molecular probe is destroyed, the half-chlorin structure is broken, and the fluorescence color changes from red to blue-green. According to the change of the fluorescence color before and after the reaction, the visualization monitoring of the lipid oxidation tendency and spatial distribution is realized through fluorescence imaging.