86 results about "Dl-Epinephrine" patented technology

Compositions and methods are provided for obtaining stabilized quinol compositions, such as catecholamine drugs (e.g., epinephrine solutions), and also for obtaining stable pharmaceutical formulations that comprise a stabilized quinol composition and a second pharmacologically active component such as a local anesthetic or other active drug ingredient having a reversibly protonated amine group. Stability is achieved through the inclusion of an appropriately selected pH buffer and a thiol agent, based on redox and pH buffering principles including pKa of the buffer and of the reversibly protonated amine group.

The invention provides a composition including epinephrine nanoparticles and methods for therapeutic use of the composition in the treatment of conditions responsive to epinephrine such as a cardiac event or an allergic reaction, particularly anaphylaxis. The epinephrine nanoparticles can be incorporated into orally-disintegrating and fast-disintegrating tablet pharmaceutical formulations and can significantly increase the sublingual bioavailability of epinephrine, and thereby reduce the epinephrine dose required. Additionally, the invention provides methods for fabrication of stabilized epinephrine nanoparticles for use in the described compositions.

The invention discloses a zilpaterol immune colloidal gold detection card and a preparation method thereof, and relates to the beta-epinephrine receptor agonist detection technical field. A test strip in an outer shell of the detection card is composed of a PVC rubber plate, a sample pad, a colloidal gold combined pad, a coating film and a water-absorbing pad; a colloidal gold film is a glass cellulose film containing a zilpaterol monoclonal antibody, and the coating film is a nitrocellulose film; a T line and a C line are arranged on the nitrocellulose film, the T line is coated with a zilpaterol-protein conjugate, and the C line is coated with a sheep anti-mouse IgG antibody. The detection card is effectively used for rapid detection of zilpaterol, is convenient and fast, and has accurate results.

The invention relates to a glutathione sensor, a preparation method thereof and application thereof in capillary electrophoresis amperometric detection. The preparation method comprises the following steps: polishing the cross section of a carbon fiber micro-disk electrode to be smooth, carrying out ultrasonic cleaning on the polished carbon fiber micro-disk electrode, and immersing the cleaned cross section of the carbon fiber micro-disk electrode into a 0.3gm/mL-0.7mg/mL of graphene oxide solution for 10-20s, and then drying in the air; reducing the graphene oxide on the carbon fiber micro-disk electrode, wherein the electro-deposition potential is at constant potential of -1.2 to -0.7V, the electricity reduction time is 150-370s, and the obtained electrode is the glutathione sensor. The sensor electrode is wide in linear range, high in sensitivity and fast in response speed, electroactive materials possible in actual samples such as dopamine, epinephrine, cysteine and the like have no interference to the determination of the glutathione.

The invention belongs to the technical field of electrochemical electrode material preparation, and provides an electrochemical sensor for detecting epinephrine and a preparation method and application thereof. The electrochemical sensor is a nano material of nickel-manganese oxide Ni6MnO8 prepared by a hydrothermal method and calcination, and the electrochemical sensor is prepared by modifying the surface of a glassy carbon electrode with the obtained nano material of nickel-manganese oxide Ni6MnO8. The electrochemical sensor has high sensitivity and selectivity, the electrode modification process is simpler and more convenient, and good stability and reproducibility are achieved. The electrode modification process is simpler and more convenient, and the electrochemical sensor has high sensitivity and selectivity and good stability and reproducibility. The nickel and manganese oxide (Ni6MnO8) is prepared through a hydrothermal method and calcination, and then the electrode is prepared. The sensitivity of the electrode is improved; and the electrode modification process is simpler. The electrochemical sensor is used for constructing a sensing system for detecting epinephrine in saliva, and the selectivity of the electrode is remarkably improved.

A case assembly is provided having a mobile phone case and storage case that is designed to securely hold a mobile phone and an epinephrine injection pen concurrently. The case assembly includes the mobile phone case which is configured to securely contain a mobile phone therein. The mobile phone case includes a viewing region which allows an operator to view a screen of the mobile phone. The storage case is coupled to the mobile phone case and is configured to securely contain and allow access to an epinephrine injector pen. The mobile phone case is selectively moveable relative to the storage case between an open position and a closed position. The opening in the storage case is covered when the mobile phone case is in the closed position, and the opening in the storage case is open when the mobile phone case is in the open position.

The invention relates to a cardio-pulmonary resuscitation method for cardiac arrest caused by a poisonous dose of a long-acting amide-type local anesthetic, specifically to application of levosimendan in preparation of a drug for cardio-pulmonary resuscitation after cardiac arrest caused by poisoning of the long-acting amide-type local anesthetic and a cardio-pulmonary resuscitation therapy. Through application of levosimendan in preparation of the drug for cardio-pulmonary resuscitation after cardiac arrest caused by poisoning of the long-acting amide-type local anesthetic and the cardio-pulmonary resuscitation therapy provided by the invention, a cardio-pulmonary resuscitation effect on cardiac arrest caused by clinical anaesthesia of the long-acting amide-type local anesthetic is substantially improved, and the problems of rapid exacerbation of blood-oxygen exchange in the lung and generation of the side effects of severe pneumorrhagia and acidosis in conventional treatment of bupivacaine clinical anaesthesia-induced cardiac arrest by using the scheme of combined usage of a lipid emulsion and epinephrine are overcome; moreover, the cardio-pulmonary resuscitation therapy employs combination of the lipid emulsion and levosimendan, and the incidence rate of arrhythmia occurred after combined usage of the lipid emulsion and levosimendan is substantially lower than the incidence rate of arrhythmia occurred after combined usage of the lipid emulsion and epinephrine.

The disclosure herein relates to the innovative epinephrine formulations in aqueous solution of medicinal products that enhance the physicochemical stabilities of epinephrine and extend the product shelf life. In some instances, the formulations comprise epinephrine or a salt thereof, a complexing agent, and a “non-sulfite” antioxidant. The epinephrine formulations substantially demonstrated the superior physicochemical stabilities to conventional sulfite formulation of commercial medications currently available. In some instances, sulfite-free formulations further provide further benefit (e.g., safety benefits) to sulfite-sensitive patients. The compositions, methods for preparing the formulations, and methods of using the same (e.g., in the treatment of anaphylaxis) are also provided.

The invention discloses an epinephrine pen. The epinephrine pen comprises a pen body. A medicine storage device is arranged in the pen body, the bottom end of the medicine storage device is connected with a piston rod through a medicine sealing film, medicine storage device springs are symmetrically installed on the two sides of the medicine storage device, a medicine outlet of the medicine storage device is located below a lower needle, the lower needle is connected with an upper needle through a medicine tube, the medicine tube is sleeved with a spring and an ejection base, the spring is installed on the ejection base, and a spring chuck is arranged at the bottom end of a wedge-shaped device. The epinephrine pen is simple in structure, low in manufacturing cost and high in practicality, can be used by allergic constitution patients, more convenience is brought for the patients to inject medicine by themselves, the epinephrine pen is exactly like a pen, can be put in a pocket or a wallet, and is convenient to carry, injection is rapid and convenient, the epinephrine liquid medicine is stored in a refill, the refill and the pen body are connected, the specially-designed needles are ultrafine and ultrashort, needle points are sharp, needle tubes are smooth, no pain is generated in the injection process, the agent application amount is accurate, and production and use are promoted.

The invention belongs to the field of pharmaceutical chemistry and discloses a phenylephrine hydrochloride impurity D, namely 2-(N-benzyl methylamino)-1-(3-hydroxyl phenyl) alcohol and a preparation method thereof. An impurity D is one of main impurities of crude drugs of phenylephrine hydrochloride; the phenylephrine hydrochloride impurity D is synthesized, a reference substance is provided for examination and quantitative and qualitative analysis of the phenylephrine hydrochloride impurity, so that the quality standards of phenylephrine hydrochloride are improved, and guidance is provided for safe medication of phenylephrine hydrochloride; meanwhile, an effective test basis is provided for obtaining phenylephrine hydrochloride which satisfies EP (European Pharmacopeia) quality standards; the figure 1 is an impurity D H-nuclear magnetic resonance spectrogram.

The invention relates to a reparation method of a sodium dodecyl benzene sulfonate / naphthol modified quasi-microelectrode and application of the quasi-microelectrode as an electrochemical sensor to rapid determination of epinephrine and uric acid, and belongs to the technical field of chemical analysis and detection. The invention utilizes catalytic oxidation effect of the electrochemical sensor, prepared from the sodium dodecyl benzene sulfonate / naphthol modified carbon paste quasi-microelectrode, on epinephrine and uric acid to carry out sensitive quantitative analysis on epinephrine and uric acid by a concentration-current curve method. The invention has main points that a working electrode has a small diameter of 0.5mm, and a three-electrode system comprising the quasi-microelectrode, a platinum filament and an Ag/AgCl reference electrode can carry out detection on microscale solution. After drying under a normal temperature, the sodium dodecyl benzene sulfonate / naphthol modified quasi-microelectrode forms a self-assembling modification layer to realize stable catalysis on oxidation of epinephrine and uric acid.

The invention discloses a preparation method of a graphene modified glassy carbon electrode, and the method is applied to electrochemical detection of epinephrine. The preparation method comprises thefollowing steps: carrying out hydrothermal synthesis on Bi(NO3)3.5H2O and Na2MoO4 to obtain BiMoO6 hollow microspheres by adopting the detection method; and modifying the surface of the graphene modified glassy carbon electrode with the BiMoO6 hollow microspheres to obtain the BiMoO6 hollow microsphere/graphene modified glassy carbon electrode. The adrenaline is detected by adopting the BiMoO6 hollow microsphere/graphene modified electrode differential pulse voltammetry, the linear range is wide, the sensitivity is high, the electrode can be used for multiple times, and the operation is convenient.

The invention discloses a preparation method and application of a functionalized graphene modified glassy carbon electrode. The preparation method comprises the following steps of modifying a surfaceof the polished glassy carbon electrode by adopting a modifier containing metal-doped gamma-ureidopropyltriethoxysilane functionalized graphene oxide with effective concentration after electrochemically activating the polished glassy carbon electrode, thereby obtaining the functionalized graphene modified glassy carbon electrode. The invention further discloses application of the functionalized graphene modified glassy carbon electrode in detecting the concentration of epinephrine in an electrochemical method. The problems that the traditional electrode detection is slow in response, narrow indetection range and low in sensitivity due to the defects that the epinephrine is slow in electron transfer rate on a bare electrode and the oxidation products are easy to adsorb are solved by utilizing the unique electrocatalytic property of graphene oxide. The testing method disclosed by the invention is good in reproducibility and stability, and can be used for measuring the concentration of the epinephrine hydrochloride, and has the features of being fast, sensitive and accurate.

The invention discloses application of a selective alpha2A receptor stimulant in treating the alzheimer disease. The invention relates to a compound which has beta1-epinephrine acceptor stimulating activity and is represented by a formula (I) or medically accepted salt. The activity of stimulating a beta1-epinephrine receptor is extremely high; EC50 is in the nM level; the EC50 of the compound with the highest activity is 24.34; and the compound can be used for a nerve protection agent and is used for treating the alzheimer disease.

The invention discloses an iron monatomic anchored nitrogen-doped carbon material and a preparation method and application thereof in detection of phenolic pollutants and epinephrine. The iron monatomic anchored nitrogen-doped carbon material Fe1@CN-20 has a porous structure, an iron substance is uniformly distributed on nitrogen-doped carbon in a monatomic form, and the Fe1@CN-20 has activity similar to natural enzyme. The natural enzyme activity is laccase activity. Compared with natural laccase, the Fe1@CN-20 shows similar Km (Michaelis constant) and Vmax (maximum rate) values, which indicates that the catalytic efficiency of the Fe1@CN-20 and the catalytic efficiency of the laccase are similar. However, the catalytic stability of Fe1@CN-20 is superior to that of laccase, and Fe1@CN-20 can play a good role under the conditions of extreme pH value, higher temperature, high ionic strength, existence of ethanol and long-time storage. In addition, the Fe1@CN-20 is also applied to detection and degradation of phenols. In the detection of epinephrine, the Fe1@CN-20 shows higher sensitivity.

The invention discloses a catalytically luminous copper cluster nano-enzyme as well as a preparation method and application thereof in catalysis and determination of epinephrine. The catalytically luminous copper cluster nano-enzyme is a copper nano-cluster formed by reaction of copper ions, cysteine and histidine. The prepared copper nano-cluster not only has the activity of natural laccase, can catalyze the reaction of epinephrine like laccase, but also has a luminous function, and can emit light to indicate epinephrine molecules at nM level. The preparation method of the copper cluster nano-enzyme is simple and convenient, and the copper cluster nano-enzyme has a good application prospect in the aspects of catalysis, sensing, biodegradation and the like.