32results about How to "Rapid detection response" patented technology

The invention discloses a detection kit used for detecting an echinococcus shiquicus (larvae). The detection kit comprises four primers, namely SEQ ID No.1, SEQ ID No.2, SEQ ID No.3 and SEQ ID No.4, or comprises a primer reaction mixture formed by the four primers. An LAMP method established according to the invention can overcome the defects of time and energy waste, low sensitivity and low specificity in the prior art, can realize detection without special instruments, equipment and long-time direct contact and only with a general water bath kettle, has the advantages of high sensitivity, good specificity and high sensibility, and is sensitive and fast in detection reaction and simple in operation, thereby being suitable for fast and accurate etiological identification in clinical application and laboratories.

The invention provides a fluorescent compound containing a mercapto group or a thioester derivative thereof as well as its preparation and application. The mercapto-containing fluorescent compound or its thioester derivatives of the present invention can emit strong fluorescence, but can react with nitric oxide directly or quickly after removing the ester group to generate products with weak fluorescence. When the nitrogen concentration decreases, the quenched fluorescence can gradually return to the initial level, thereby realizing the reversible and real-time dynamic detection of nitric oxide. The fluorescent probe of the present invention has good stability and can be stored and used for a long time; the detection signal-to-noise ratio is high, the sensitivity is good; the selectivity is good, the biofilm permeability is good, the detection response is fast, the detection response is reversible, and it is suitable for solution Real-time dynamic observation of endogenous nitric oxide in organisms, such as cells and living tissues. The structural formula of the mercapto-containing fluorescent compound or its thioester derivatives is:

The invention discloses a toilet device provided with a drying mechanism, belongs to the technical field of toilets, and solves the problem that the use effect is affected due to the fact that the drying mechanism on the conventional toilet device cannot sense the opening and closing states of a baffle plate in time. The toilet device comprises a main body part, a control mechanism, a spray nozzle mechanism, the drying mechanism and a baffle plate sensing mechanism, wherein the main body part is connected with a toilet assembly for supporting a human body; the control mechanism comprises an operating part located on the outer side of the main body part and a control part located in the main body part; the spray nozzle mechanism is mounted at the main body part and used for washing the local private part of the human body; the drying mechanism comprises a casing, an air supply device for producing airflow and a heater for heating the airflow, and the casing is provided with an air outlet for supplying dry air to the human body and a baffle plate for opening or closing the air outlet; the baffle plate sensing mechanism is arranged on the drying mechanism and connected with the control part, and the control part is used for judging the opening and closing states of the baffle plate according to feedback signals of the baffle plate sensing mechanism.

The invention discloses an electrical fire intelligent protection device, which includes: a processor for processing logical comparisons of data collected and returned by various parts, and controlling the operation of all central control systems; a capacitive reactance collector for collecting current signal data sent back to the processor; a comparator, which is used to compare the data value collected and output by the capacitive inductive reactance collector with the set data value; a follower; a proportional amplifier; a control mechanism; an executive operating mechanism. The present invention collects the signal of the load circuit through the capacitive inductive reactance collector and outputs it to the proportional amplifier, comparator, processor and follower for processing and comparison, and compares the instantaneous value in the collected load circuit with the set value to obtain The reaction mechanism has a fast detection speed, and the control mechanism reacts quickly after detection, and the power supply and load circuit are cut off quickly before the short-circuit spark is generated, which increases the device's suppression of short-circuit sparks and increases the safety of device protection.

The present invention relates to a class of coumarin hydrazone compound selected from the following compounds, its preparation method and application. The coumarin hydrazone compound or its salt itself of the present invention has only weak fluorescence, but it can specifically and quickly react with formaldehyde to generate a product with strong fluorescence, and there is a linear correlation between the fluorescence intensity and the concentration of formaldehyde, thereby realizing the specificity to formaldehyde Sex detection and quantitative analysis. The coumarin hydrazone compound or its salt of the present invention is suitable for the determination of formaldehyde content in the environment, the labeling and imaging of formaldehyde in cells and tissues, the determination of formaldehyde content in biological samples such as tissue homogenate, plasma, urine, saliva, etc., and food Determination of formaldehyde content in life samples such as cosmetics, clothing and so on.

The invention discloses a detection kit used for detecting an echinococcus shiquicus (larvae). The detection kit comprises four primers, namely SEQ ID No.1, SEQ ID No.2, SEQ ID No.3 and SEQ ID No.4, or comprises a primer reaction mixture formed by the four primers. An LAMP method established according to the invention can overcome the defects of time and energy waste, low sensitivity and low specificity in the prior art, can realize detection without special instruments, equipment and long-time direct contact and only with a general water bath kettle, has the advantages of high sensitivity, good specificity and high sensibility, and is sensitive and fast in detection reaction and simple in operation, thereby being suitable for fast and accurate etiological identification in clinical application and laboratories.

The invention discloses a light refraction type water detection device. The water detection device comprises a shell, wherein a light source is arranged on one side in the shell, and a first transparent waterproof plate is mounted on one side located in front of the light source in the shell; two photosensitive devices are arranged on the other side in the shell at intervals, the photosensitive device farer from the light source is a first photosensitive device, the photosensitive device nearer to light source is a second photosensitive device, and a second transparent waterproof plate is arranged on the other side in front of the first photosensitive device and the second photosensitive device in the shell; and the included angle between a light-sensitive surface of the first photosensitive device and the second transparent waterproof plate is same as the included angle between an incident ray of the light source and a normal line of the first transparent waterproof plate. The light refraction type water detection device can rapidly respond and be conveniently realized, is relatively low in cost, high in reliability and detection property, is not influenced by the salinity difference of a water body, the atmospheric moisture and height and the like and has a state detection function, so that the online detection of system equipment can be realized.

The invention discloses a steam generation device and aims to provide a steam generation device provided with a water shortage detection device. The water shortage detection device judges precisely, has low cost, quick response and a long service life, and can remind a user to clean heating tubes so as to avoid heating without water. The embodiment of the invention provides the steam generation device which comprises a water distribution valve (1) and the heating tubes (2) which are transparent or partially transparent at the lower part, wherein the lower end of a lower electrode (21) of eachheating tube (2) is provided with a light-emitting device (111) and a light sensitive element (121); and light emitted by the light-emitting device (111) is refracted by at least one of the heating tubes (2) and then reaches the light sensitive element (121) without passing through an axle center of the heating tube (2). The invention also discloses a household electric steam box which comprises the steam generation device.

The invention belongs to the technical field of two-photon fluorescently labeled probes and applications thereof, and in particular relates to two-photon fluorescently labeled probes and a method for synthesizing them, as well as applications in the diagnosis of novel coronaviruses. The chemical name of the probes of the present invention is 3-(N-methyl-N -(6-acetyl-2-naphthyl)amino)propionic acid-N-hydroxysuccinimide ester, the two-photon fluorescent probe has the advantages of high sensitivity, rapid detection, and accuracy, and is used to label the 2019-nCoV The fluorescent antigen obtained after the N protein antigen can be made into immunochromatographic test strips or detection kits, which can be used for the rapid detection of novel coronavirus pneumonia, and the test strips or kits have the advantages of rapid detection, detection consistency and stability High quality features.

A uric acid test kit capable of eliminating the interference of calcium dobesilate and phenetamine drugs in serum and a preparation method thereof of the present invention, the key points of its technical scheme are: comprising reagent R1 and reagent R2, and the reagent R1 contains buffer solution, peroxidase, ascorbate oxidase, preservative, Trinder's reaction reagent A, metal salt or nonionic surfactant; the reagent R2 includes buffer, serum albumin, uricase, preservative, and Trinder's reaction Agent B or nonionic surfactant. In the uric acid kit of the present invention, one or more of the oxidized metal salts of high redox potential or vanadium pentoxide or vanadium oxychloride are added to R1, and the hydroxybenzene Oxidation of calcium sulfonate and phenetamine prevents the consumption of H2O2 produced by uricase decomposing uric acid after adding R2, and quickly obtains accurate uric acid measurement values.

A fluorescence-OCT dual-mode imaging method and device based on indocyanine green nanometers, the method comprising: combining indocyanine green with phospholipidated polyethylene glycol to form indocyanine green-phospholipidated polyethylene glycol Nanoparticles, and modify biological targeting molecules at the end of the polyethylene glycol molecule to obtain ICG-PL-PEG-FA solution; inject the ICG-PL-PEG-FA solution to the imaging target, and use the low coherence of near-infrared light The light source irradiates the area to be scanned of the imaging target and uses a light source with a wavelength of 780nm to excite the ICG-PL-PEG-FA molecules in the imaging target to generate fluorescence; open the OCT imaging optical path to obtain the OCT imaging of the imaging target Structural images with depth ranges. The above method and device generate fluorescence through the ICG-PL-PEG-FA molecules in the imaging target, and use the OCT imaging system to collect the fluorescence signals, which can restore the position information of the fluorescent substance in the experimental living body, so that the contrast agent can be clearly distinguished The position of the identified lesion area presents a structural image of a certain depth range.

The invention relates to a uric acid kit for rapidly and simply eliminating drug interference of calcium dobesilate and etamsylate in serum. The uric acid kit is characterized by comprising a reagentR1 and a reagent R2, wherein the reagent R1 comprises a buffer solution, creatinase, creatine oxidase, ascorbic acid oxidase, peroxidase or catalase, serum albumin, a nonionic surfactant, a preservative, a Trinder's reactant A and laccase or metallate; and the reagent R2 comprises a buffer solution, serum albumin, creatininase, a preservative and a Trinder's reactant B. According to the invention,the defect that creatinine determination is inaccurate due to negative deviation caused by the calcium dobesilate and the etamsylate contained in serum samples when creatinine is determined by clinical examination in various hospitals at present is overcome, and the uric acid kit is suitable for detection of serum creatinine by a full-automatic biochemical analyzer.