551 results about "Photo stability" patented technology

The invention provides an aggregation-induced emission molecule, a nano motor and a preparation method and application of the aggregation-induced emission molecule, the aggregation-induced emission molecule is used for near-infrared emission, has photo-thermal properties, and has the characteristics of near-infrared II region luminescence, heat production and good light stability; the nano motor is prepared by taking an asymmetric double-mesoporous nano material with different pore diameters as a support material and selectively loading aggregation-induced emission molecules on one side of the support material with a larger pore diameter; under the irradiation of near-infrared light, the aggregation-induced emission molecules with the photothermal effect can form a non-uniform thermal gradient to push the self-thermophoresis movement of the nano motor; tumor sites can be diagnosed and reported under the mediation of near-infrared II region imaging; through the photo-thermal effect, the motor can destroy tumor interstitial cells and degrade tumor matrix components; and in combination with autothermophoresis, blood vessels can be penetrated, so that penetration to the deep layer of the tumor can be realized.

The invention discloses a preparation method of Au (at) Au (at) Ag / Pt / M NPs and application of the Au (at) Au (at) Ag / Pt / M NPs in klebsiella pneumoniae detection, and belongs to the technical field of analysis and detection. The invention particularly relates to development of a signal probe and combination and assembly of the signal probe and lateral flow immunochromatography (LFIA) for klebsiella pneumoniae detection. Au (at) Au (at) Ag / Pt / MNPs is a multi-element noble metal nanoparticle with plasma resonance property, peroxidase-like activity and light stability, shows strong detection potential in three modes of colorimetric (CM), catalytic colorimetric (CL) and surface enhanced Raman scattering (SERS), and is loaded into LFIA to construct a multi-mode LFIA (CM / CL / SERS-LFIA). The kit is expected to be used for direct multimode detection of klebsiella pneumoniae in clinical sputum samples, and a new early detection strategy is provided for respiratory tract infection diseases such as klebsiella pneumoniae.

The invention provides a method for improving the illumination stability of perovskite through post-treatment. The method comprises the following steps: S1, preparing a perovskite illuminant; s2, grinding and diffusing; and S3, inducing exposure and passivation of photoinduced defects. According to the invention, the light stability of the perovskite illuminant synthesized in a temperature solid state can be improved, so that the perovskite illuminant is applicable to wider application fields.

The invention discloses a multifunctional printing and dyeing dye and application thereof in outdoor clothes, and belongs to the technical field of nylon printing and dyeing, the multifunctional printing and dyeing dye comprises 1-3% (o.w.f) of an acid dye, 1.5-3.5 g / L of a dyeing auxiliary agent, and 0.6-1 g / L of an auxiliary agent cross-linking agent; the dyeing auxiliary agent is a core-crosslinked star-shaped polymer prepared by an arm-first method; dyeing can be changed into color fixation by adjusting the pH value and the bath ratio of the dye bath without additionally preparing a color fixation solution, so that the additional water consumption required by color fixation is reduced; the adopted dyeing auxiliary is a core cross-linked star-shaped polymer prepared by an arm method, and the ultraviolet light absorber is coated in a core, so that the light stability and washability of the ultraviolet light absorber are improved, the mobility is reduced, and the problem of sensitive skin stimulation caused by long-term contact with human skin after the ultraviolet light absorber is migrated to the surface of the fabric is prevented.

The invention discloses an azobenzene polymer material and an application of the azobenzene polymer material in nanoimprint lithography. The azobenzene polymer is prepared by adopting a one-step simple ring-opening metathesis polymerization method, is endowed with excellent thermal stability and light stability, and can keep excellent performance under the conditions of high temperature and sunlight irradiation. Compared with the traditional nanoimprint photoresist, the nanoimprint photoresist provided by the invention has higher stability and precision in the nanoimprint process, can effectively reduce the problems of distortion, blurring and the like of an imprint pattern, and ensures the accuracy of nanostructure transfer printing. The finished product quality and the production efficiency are improved, and meanwhile, the uncertainty and the cost in the manufacturing process are reduced.

The invention discloses a red xanthene dye for blue photoresist color paste and a synthesis method of the red xanthene dye, and the synthesis method comprises the following steps: (1) sulfonyl chlorination reaction: carrying out sulfonyl chlorination reaction on xanthene molecules B containing two sulfonate radicals by using a chlorination reagent, and carrying out post-treatment to obtain a sulfonyl chloride intermediate C; and (2) esterification reaction: carrying out esterification reaction on the sulfonyl chloride intermediate C obtained in the first step by utilizing an esterification reagent, and carrying out post-treatment to obtain the target red xanthene dye A with methacrylamide at the tail end. The invention provides a novel xanthene dye molecule which can be mixed with a blue pigment color paste to prepare a blue photoresist color paste for improving the brightness of the color paste. In addition, the liquid crystal composition has the advantages of high transparency, high contrast ratio, good dispersity, relatively high covering power, tinting strength and the like, and is good in thermal stability and light stability; meanwhile, the synthesis method provided by the invention is simple, low in cost and easy for large-scale production.

The invention discloses an optical stealth color radiation refrigeration coating as well as a preparation method and application thereof, and relates to the technical field of optical stealth materials. The coating is prepared from the following raw materials in percentage by mass: 30 to 50 percent of nano-particles wrapped by fluorescent silicon dioxide shells, 30 to 35 percent of polydimethylsiloxane, 5 to 10 percent of auxiliaries and 30 to 40 percent of ethyl acetate, wherein the sum of the mass percent of all the components is 100 percent; according to the invention, the organic fluorescent dye is doped in the mesoporous silica and is coated with the silica shell, so that not only is the fluorescence aggregation quenching effect of the organic dye avoided and the maximum fluorescence intensity of the dye improved, but also the silica shell layer at the outer layer also plays a role of a protective layer; oxidation of ultraviolet rays, solvents and oxygen to the dye is shielded, and the light stability of the dye is improved.

The invention relates to the technical field of photo-thermal therapy, in particular to a monomolecular photo-thermal agent with high photo-thermal conversion efficiency and a preparation method and application of the monomolecular photo-thermal agent. The preparation method comprises the following steps: S1, synthesis of a compound X1: under the protection of argon, dissolving 2, 4-dimethyl pyrrole in dichloromethane, stirring in an ice bath, adding trifluoroacetic anhydride, heating to room temperature after stirring, extracting after quenching reaction, combining organic phases, drying, filtering, concentrating under reduced pressure and purifying by silica gel column chromatography to obtain the compound X1. The prepared monomolecular photothermal agent with the high photothermal conversion efficiency is high in water solubility, has the high photothermal conversion efficiency in an aqueous solution and is high in light stability, the immune escape phenomenon possibly caused by introduction of a high polymer material is avoided, and the technical problem that an existing photothermal agent is difficult to achieve the high photothermal conversion efficiency in the aqueous solution is solved.

The utility model relates to the technical field of television or display backlight equipment, and provides an active matrix driven Mini-LED backlight plate capable of achieving RGB independent control, the active matrix driven Mini-LED backlight plate comprises a substrate and a plurality of Mini-LED units arranged on the substrate in an array mode, and each Mini-LED unit comprises an RGB light-emitting unit, an RGB light-emitting unit, an LED light-emitting unit, an LED light-emitting unit and an LED light-emitting unit. Comprising a first blue light chip, a second blue light chip and a third blue light chip which are arranged on the substrate at intervals, and a green light conversion layer is arranged in the light emitting direction of the second blue light chip; a red light conversion layer is arranged in the light emitting direction of the third blue light chip; and the active driving unit is arranged on the substrate, is electrically connected to the RGB light-emitting unit, and is used for independently adjusting the brightness of the first blue light chip, the second blue light chip and the third blue light chip. The three chips of the RGB light-emitting unit are all connected with the driving unit through blue light chips, the brightness changes of the three chips along with changes of temperature, current and voltage are kept consistent, the situation of color shift can be greatly reduced, and the light-emitting stability is higher.

The invention discloses a near-infrared dichroic dye, a liquid crystal composition and application of the near-infrared dichroic dye and the liquid crystal composition. The structural general formula of the disclosed dichroic dye is as shown in formula I in the specification. According to the invention, a hydrogenated quinoline ring, a hydrogenated benzopyran ring and a hydrogenated naphthalene ring are introduced into a molecular skeleton, so that the novel near-infrared dichroic dye with high light stability, high solubility, high order parameter and high light modulation capability is obtained. Compared with the near-infrared dichroic dye disclosed in the prior art, the absorption band is further subjected to red shift, and the light modulation capability is remarkably improved; ordering parameters are greatly improved, and the application bottleneck is solved.

The invention belongs to the technical field of near-infrared organic dye synthesis, and particularly discloses a cyanine dye with J aggregation characteristic, J aggregation nanoparticles, and preparation methods and applications of the cyanine dye and the J aggregation nanoparticles. The cyanine dye is 1-ethyl-2-(2-(2-(-3-(2-(1-ethyl-3, 3-dimethyl-1, 3-dihydro-2H-benzo [g] indole-2-subunit) ethylidene)-2-(2, 2, 2-trifluoro-N-(2-methylbenzyl) acetamide) cyclopent-1-ene-1-yl) vinyl)-3, 3-dimethyl-3H-benzo [g] indoleiodised salt, and the structural formula of the cyanine dye is shown in the description. The preparation method is simple, the J aggregation nanoparticles can be prepared by utilizing the unique property of J aggregation, the J aggregation nanoparticles have high light stability and have strong fluorescence emission in a near-infrared second region, and the material prepared by the invention can be used as a contrast agent and is applied to the field of near-infrared second region fluorescence imaging.

The invention relates to the technical field of heat transfer printing ink, and discloses a heat transfer printing technology-based temperature-variable color formula which comprises the following components in percentage by mass: 30%-40% of a thermoplastic polymer carrier, 5%-10% of a temperature-sensitive color-variable pigment, 1%-3% of a dispersing agent, 5%-8% of a connecting material, 0%-5% of an ultraviolet light absorber and the balance of a solvent, the invention further discloses a printing technology of the temperature-variable color formula based on the heat transfer printing technology. The printing technology comprises the following steps that S1, the temperature-sensing color-variable ink is printed on transfer printing paper through digital printing equipment. By adopting the liquid crystal microcapsule pigment, the thermoplastic polymer carrier with narrow molecular weight distribution, the efficient dispersant and the improved preparation process, accurate color change, smooth transition and excellent aging resistance of the ink in a specific temperature range are realized, and meanwhile, the light stability, the storage stability and the definition of a printed pattern are improved; the method is suitable for multiple indoor and outdoor scenes, and meets the high-quality requirements of personalized customization of commodities.

The invention provides a boron drug with tumor targeted release capability for boron neutron capture therapy and a preparation method thereof, relates to the technical field of tumor therapy, and provides a boron drug which can be activated through high-concentration NAD (P) H at a tumor site and can release a B-10 drug in a targeted manner for boron neutron capture therapy. A boron-10-containing compound in the boron medicine is connected with 3-aldehyde quinoline salt through a self-elimination reactive group, the 3-aldehyde quinoline salt can be specifically reduced by NAD (P) H rich in tumor cells to trigger chain reaction, and the effective boron-10 compound is released for boron neutron capture therapy. The damage to normal cells in the BNCT process can be effectively reduced by a method for targeted aggregation of the boron drug in the tumor cells. The boron drug synthesis method is simple, mild in condition and high in yield, has the advantages of stable chemical property, good light stability, small toxicity and the like, and provides a good application prospect for the field of boron neutron capture therapy.

The invention discloses a red fluorescent silicon nanodot as well as a preparation method and application thereof. The method comprises the following steps: S1, weighing sulforhodamine 101, adding ultrapure water for dissolving, then adding N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, uniformly stirring, transferring the obtained mixture into a reaction kettle, and heating for reaction; and S2, after the reaction is finished, cooling to room temperature, purifying the obtained product by using a silica gel chromatographic column, eluting by using an eluent, collecting the eluent, and finally, freeze-drying to obtain the red fluorescent silicon nanodots. Compared with common blue-green fluorescence, red fluorescence emission has deeper tissue penetrability and background fluorescence interference resistance; the silicon nanodot provided by the invention not only has excellent light stability and high quantum yield, but also has characteristics similar to lipophilic cations, and can specifically target mitochondria in living cells; in addition, the silicon nanodots also show excellent imaging ability in zebrafish embryos and juvenile fish bodies.

The invention relates to the technical field of medical instruments, and discloses a cervical cancer precancerous lesion treatment head which comprises a treatment head body, a high-pressure balloon is arranged in the middle of the outer wall of the treatment head body, a light emitting body is arranged in the treatment head body and located in the high-pressure balloon, the high-pressure balloon is made of high-elasticity polyurethane, and the high-pressure balloon is made of high-elasticity polyurethane. Polyurethane can bear internal pressure and cannot be broken, a space is provided for treatment operation, the treatment head body is made of a high-light-transmittance light-transmitting material, the light-transmitting material has light stability, and the light-transmitting material can reduce loss of light in the transmission process. The light transmission loss is reduced through the high-light-transmittance light-transmitting material of the treatment head body, the light intensity and quality are guaranteed, the scattering points on the treatment head body are matched, the light is deeply and evenly radiated to the wrinkled part of the cervical dome at the deep position of the cervical canal and the dense scattering points, and the problem that the treatment effect is not ideal due to incomplete irradiation is solved.

The invention provides a bolete concentrated powder composition lipid carrier with an anti-aging effect as well as a preparation method and application of the bolete concentrated powder composition lipid carrier. The lipid carrier is prepared from the following substances in percentage by mass: 10 to 40 percent of bolete extract, 0.2 to 0.8 percent of antioxidant, 45 to 66 percent of solid lipid, 10 to 16 percent of liquid lipid and 4.2 to 7.8 percent of surfactant. According to the bolete concentrated powder composition lipid carrier provided by the invention, liquid lipid with anti-oxidation and light protection effects is mixed into solid lipid to construct a nano carrier matrix with a light protection function. Plant active ingredients with a light protection effect and an anti-oxidation effect and ergothioneine in the bolete extract are jointly loaded in a nano-structure lipid carrier, so that synergistic interaction of multiple effects is realized. The synergistic delivery system of the nanostructured lipid carrier can inhibit the photodegradation reaction of the ergothioneine and the generation of peculiar smell, improve the photostability of the ergothioneine, enhance the oxidation resistance of the ergothioneine in an acid environment, and improve the anti-aging effect.

The invention discloses an ultra-sensitive viscosity fluorescent probe based on a carbon-nitrogen double bond. The chemical structural formula of the probe is as follows: # imgabs0 #. The fluorescent probe is synthesized through Schiff base reaction, and is simple to operate and easy to synthesize. The probe can freely rotate at carbon-carbon double bonds and carbon-nitrogen double bonds, and when the probe is in high viscosity, free rotation of molecules is limited, so that twisted intramolecular charge transfer is inhibited, fluorescence of the probe is remarkably enhanced, and 650 nm near-infrared fluorescence is emitted under the excitation wavelength of 600 nm. In addition, the probe has ultrahigh sensitivity, excellent selectivity, excellent light stability and pH tolerance, and has huge application prospects in the technical fields of analytical chemistry, life science, biomedical treatment and the like.

The invention discloses the technical field of photocatalysis, and particularly discloses a preparation method of a visible-light response type covalent organic frame-TiO2 composite material, which comprises the following steps: adding TiO2 into a mixed solvent, carrying out ultrasonic dispersion, dropwise adding an H2PtCl6 aqueous solution while stirring, reacting under the irradiation of a mercury lamp, centrifuging, washing and drying to obtain a Pt-TiO2 material; the preparation method comprises the following steps: dispersing a Pt-TiO2 material in an organic solvent, adding 2-hydroxybenzene-1, 3, 5-tricarboxaldehyde and 4, 4 '-(benzo [c] [1, 2, 5] thiadiazole-4, 7-diyl) diphenylamine, carrying out ultrasonic treatment for 3-8 minutes, and then adding acetic acid; after 2-4 times of liquid nitrogen freezing-degassing, sealing, and reacting for 2-5 days at the temperature of 110-130 DEG C; and centrifuging, washing and drying to obtain the covalent organic frame-TiO2 composite material. The novel covalent organic frame-TiO2 composite material prepared by the invention effectively expands the visible light absorption range of TiO2, has strong visible light absorption and strong photocatalytic performance, can efficiently catalyze hydrogen evolution, and has excellent light stability and repeatability in photocatalytic hydrogen evolution reaction.

The invention discloses a liquid crystal compound containing 2, 4, 5-trifluorobenzene, a preparation method and a composition thereof. The structure of the compound disclosed by the invention is shown as a general formula I; and the liquid crystal composition disclosed by the invention comprises the liquid crystal compound disclosed as the general formula I. The liquid crystal compound has the advantages of low dielectric loss, good light stability, wide nematic liquid crystal phase, high birefringence, low viscosity, good low-temperature intermiscibility and the like. The composition based on the liquid crystal compound provided by the invention obtains relatively high dielectric tuning rate, extremely low dielectric loss and low rotary viscosity under high frequency; and the material has the advantages of good light stability, large birefringence, wide working temperature range and the like. The liquid crystal composition provided by the invention has the characteristics of large birefringence, low viscosity and the like, so that the liquid crystal composition is suitable for manufacturing liquid crystal optical elements and high-frequency assemblies. # imgabs0 #

The invention discloses a photosensitizer for endogenous hydrogen sulfide activation and visible light excitation as well as a preparation method and application thereof, and relates to the technical field of medical photosensitizers. According to the photosensitizer provided by the invention, BA and NIS react to obtain a BODIPY compound I2BA substituted by double atoms I, so that the intersystem crossing capability is enhanced, and the yield of active oxygen is increased; a target photosensitizer is obtained by introducing a tetraazobenzene ring Cyclone into the para-position of a benzene ring and combining copper ions Cu < 2 + >. The prepared photosensitizer has good light stability and water solubility, can be activated by endogenous hydrogen sulfide in cancer cells, can generate singlet oxygen (1O2) under the irradiation of green light (520 nm), shows excellent photodynamic activity to tumor cells and low dark toxicity to normal cells, has a high photodynamic activity index (PI value), and can be used as a photosensitizer for cancer cells. The compound is successfully used for photodynamic inhibition and elimination of tumors on HCT116 tumor-bearing mice.

The invention belongs to the technical field of industrial silane preparation, and provides a natural silane rotor and a preparation method and application thereof.The preparation method comprises the steps that a pyridoxal phosphate solution and a 4-amino ethyl cinnamate solution are mixed and then react to obtain pyridoxal phosphate cinnamyl ester; and mixing the pyridoxal phosphate cinnamyl ester solution and the amino silane solution, and reacting to obtain the natural silane rotor. The silane rotor has a good conjugated structure, is stable in chemical structure, can be stored for a long time, is good in light stability, and is not liable to cause a photobleaching phenomenon. Besides, conjugated single and double bonds capable of freely rotating exist in the molecular structure, a typical flexible intramolecular rotation characteristic is presented, the conjugated structure can freely rotate in a dilute solution, a surface sightseeing signal is weak, the free rotation phenomenon is limited in a thick solution, the surface sightseeing signal is strong, and the surface sightseeing signal is strong. Therefore, the device can be used as a molecular tool for monitoring the change of the thin consistency of the silane, and can provide real-time, lossless and visual detection support for the development of a silane modulation process.

The invention relates to the technical field of immunochromatography, in particular to time-resolved fluorescent microspheres, a preparation method and application of the time-resolved fluorescent microspheres in PSP / CRP / MxA quantitative detection immunochromatography test strip, and the preparation method of the time-resolved fluorescent microspheres comprises the following steps: 1) preparing surface aminated polystyrene microspheres; (2) carrying out glutaraldehyde crosslinking and 1, 10-phenanthroline-5-amino combination; 3) grafting a rare earth fluorescent dye on the surface; and 4) coating a polymer shell layer and modifying carboxyl. According to the invention, through a dual fixation strategy of surface grafting and polymer coating, the time-resolved fluorescent dye is confined to a functional region between the surface of the microsphere and a polymer shell layer, diffusion and leakage of dye molecules to the external environment are blocked, and the problem of dye shedding of traditional fluorescent microspheres is solved; the polymer shell layer can effectively isolate external ultraviolet light, oxygen and other corrosive factors, reduce photooxidative degradation and non-radiative transition loss of fluorescent molecules, and improve the light stability and fluorescent lifetime of the fluorescent molecules.

According to the yellow leuco dye developing ink and the preparation method thereof disclosed by the invention, by optimizing the molecular structure of the yellow leuco dye and the matching relationship between the yellow leuco dye and a color developing agent, the ink can quickly develop under the conditions of low temperature, slight pressure or low-concentration acid / metal salt, the developing effect is distinct, and handwriting or patterns are clear and visible; by selecting a yellow leuco dye with better photostability of a color body after color development and introducing an antioxidant component, the color fading of a color development product under the irradiation of ultraviolet and visible light is effectively delayed, and the storage period of color development images and texts is prolonged; by improving an ink formula and a packaging process, the ink can keep good leuco stability in different environments such as high temperature, high humidity, low temperature and the like, and the phenomena of self color development, non-uniform color development and the like are prevented. The ink is colorless or light in color under normal conditions, can show bright yellow after being stimulated by acid, metal salt or heat, and has the characteristics of high color developing sensitivity, clean background and wide application range, and the comprehensive performance of the ink is remarkably improved.

The invention provides a fluorescent probe compound for simultaneously detecting HClO and ONOO <-> at two sites as well as preparation and application of the fluorescent probe compound. According to the probe compound, N, N-dimethylaminothioformyl ester is used as a response group of HClO, and the fluorescent probe RhB-ClO for simultaneously detecting HClO and ONOO <-> is constructed by expanding a conjugated structure of rhodamine. The probe shows excellent selectivity, high sensitivity (the detection limits are 9.9 nM and 13.1 nM respectively), good light stability and real-time responsiveness (the response time is 30 s and 150 s respectively) on HClO and ONOO <->. The probe not only can realize dual-channel imaging of HClO and ONOO <-> under oxidative stress conditions, but also can visualize the ferroptosis process of cells, a Parkinson's disease model and changes of HClO and ONOO <-> levels in an APAP-induced liver injury model. In addition, RhB-ClO can also be used for screening potential candidate drugs for nerve injury and liver injury, and it is proved that luteolin and piplongumine can be used as candidate antioxidant drugs.

The invention discloses an organic mildew preventive for a light degradation resistant water-based paint as well as a preparation method and application of the organic mildew preventive, and the organic mildew preventive comprises the following raw material components in parts by weight: 0.10-2.00 parts of an isothiazolinone organic mildew preventive, 0.50-5.00 parts of a triazole organic mildew preventive, 3.00-10.00 parts of isopropanol, 3.00-10.00 parts of vegetable oleic acid and 0.10-1.20 parts of a rare earth light stabilizer. According to the invention, through specific types and proportions of the rare earth light stabilizer and the organic light stabilizer, a synergistic effect between the rare earth light stabilizer and the organic light stabilizer is realized, functional complementation is promoted, a multiple stabilization mechanism is initiated, and the rare earth light stabilizer and the organic light stabilizer have the advantages of high stability, low cost and high efficiency. The light stability of the organic mildew preventive in an outdoor environment is obviously enhanced.

Aspects of the application provide methods of identifying and sequencing proteins, polypeptides, and amino acids, and compositions useful for the same. In some aspects, the application provides methods of obtaining data during a degradation process of a polypeptide, and outputting a sequence representative of the polypeptide. In some aspects, the application provides amino acid recognition molecules comprising a shielding element that enhances photostability in polypeptide sequencing reactions.

The invention discloses a self-assembled monomolecule taking spirofluorene as a conjugated bridge and a preparation method and application thereof, and relates to the field of solar cells, the self-assembled monomolecule takes carbazole and derivative groups thereof as functional groups, takes phosphoric acid as an anchoring group, and improves the light stability of a material and optimizes the energy level of the material by adjusting the spirofluorene conjugated bridge, so that the self-assembled monomolecule can be used for preparing the solar cell. And molecular arrangement is improved. On the premise of ensuring good light stability, the extraction and separation efficiency of current carriers is effectively improved. The technology has the characteristics of simple synthesis process and high cost benefit. When the material is applied to a perovskite solar cell, the photoelectric conversion efficiency of more than 24% can be realized, and the material has huge potential in the aspect of commercial application.

The invention discloses a production method of petroleum-based furnace carbon black, the carbon black produced by the method and application of the carbon black. The production method comprises the following steps: reacting fuel with an oxidizing agent to generate combustion gas flow; raw materials are introduced into the reaction furnace to be mixed with high-temperature combustion airflow; after the raw material is introduced into the reaction furnace and before the cooling water is injected, introducing a titanium-containing material flow at a position which is' L 'away from the downstream of the raw material introduction point; the raw materials, the titanium-containing material flow and the combustion gas flow react in a reaction zone to generate the titanium-treated carbon black, then the carbon black is cooled, separated and recycled, and the titanium-treated carbon black obtained by the method shows better shading property and light stability when being applied to the fields of printing ink, paint, coating, plastics and the like, and shows better dispersity in water-based color paste at the same time.

The invention discloses a photoetching machine multi-light-source cooperative high-precision exposure control system, and relates to the technical field of photoetching machine control. Initial energy parameters of all light sources are obtained, a coupling feature set of energy change and light spot morphology change is constructed, and light intensity errors, phase errors and light spot distortion errors are used as input, so that a multi-light-source cooperative high-precision exposure control system is constructed; respectively generating an inter-light-source time sequence offset matrix and a light source energy compensation matrix, constructing a light source collaborative error model through matrix superposition and eigenvalue decomposition, inputting exposure disturbance obtained by real-time monitoring of a photoetching machine into the error model, and obtaining a primary compensation amount; a final target exposure compensation parameter is obtained by adopting a quadratic optimization algorithm under a constraint condition, and light source energy output, a light path phase and a pulse trigger time sequence are cooperatively adjusted according to the target exposure compensation parameter, so that energy deviation, phase drift and time sequence mismatch can be reduced at the same time, the exposure stability and the pattern forming precision are remarkably improved, and the image forming precision is improved. The method is suitable for high-resolution and multi-light-source photoetching equipment.

The invention discloses a lipid droplet specific fluorescent probe as well as a preparation method and application thereof, and relates to the technical field of biological medicines. The invention provides a structural formula of the lipid droplet specific fluorescent probe, and during preparation, 2-formaldehyde-6-(diethylamino) benzo [B] furan and a malononitrile derivative are used for preparing a fluorescent probe with an extended pi conjugated system under the action of an alkali environment; the fluorescent probe has the characteristic of intramolecular charge transfer (TICT), fluorescence in an aqueous solution is extremely weak, fluorescence in sunflower seed oil is remarkably enhanced, and the fluorescent probe has remarkable Stokes shift, excellent biocompatibility, excellent light stability and high signal-to-noise ratio. Meanwhile, the fluorescent probe shows extremely high sensitivity and signal-to-noise ratio in the aspect of cell lipid droplet imaging, and dynamic and accurate targeted imaging of lipid droplets can be easily realized. Therefore, the fluorescent probe disclosed by the invention is expected to become an alternative scheme for accurate detection of atherosclerosis.