Beta-receptor agonist substituted template molecularly imprinted polymer microsphere, preparation method and application thereof
A receptor agonist, a technology that replaces templates, applied in microsphere preparation, chemical instruments and methods, microcapsule preparations, etc., can solve problems such as template molecule leakage, and achieve good inclusion and complexation ability and chemical stability.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0053] Example 1, Preparation of β-receptor agonists instead of template molecularly imprinted polymer microspheres (MMIP)
[0054] Dissolve 0.138g of p-hydroxyphenylethylamine and 850mL (0.8024g) of MMA in 15mL of acetonitrile, sonicate for 15min, and place at 25°C for 4h to allow the template molecules to fully interact with the functional monomer, then add 1mL of divinylbenzene (20mmol, 0.919g), AIBN 20mg, sonicated for 10min to make it fully dissolved and mixed, and N was passed into the mixed solution 2 After 2 minutes, it was sealed and polymerized in a water bath at 60°C for 24 hours to obtain a glassy solid polymer (MIP). The polymer is pulverized, the polymer is ground, and then sieved with a 300-mesh sieve to obtain a polymer with a particle size of less than 48 μm; the template molecule is then eluted with a methanol solution with a mass fraction of 5-20% acetic acid, and then methanol is used to Wash until there is no impurity in the washing solution, and then dry...
Embodiment 2
[0057] Example 2. Research on adsorption properties of β-receptor agonists instead of molecularly imprinted polymer microspheres
[0058] (1) Adsorption selectivity of β-agonists instead of molecularly imprinted polymer microspheres
[0059] Accurately prepare 100 ng / mL PBS standard solutions of pH 8.0 of 22 structural analogs, add 10 mg of molecularly imprinted microspheres to absorb for the same time, and perform HPLC-MS / MS detection.
[0060] The adsorption results are shown in Table 3. The results show that the synthetic molecularly imprinted microspheres have the worst adsorption effect on agonists such as clenbuterol, salbutamol, clorprenaline, cimaterol, and mabuterol, and the adsorption rate is less than 35%. . However, the adsorption rates of p-phenylethanolamine A, labeterol, isoxuling and salmeterol can reach more than 99%. The adsorption efficiency of other structural analogs such as ractopamine and bambuterol is relatively low, but they can also be Up to 50% or ...
Embodiment 4
[0073] Embodiment 4, the method application of MMIP to agonist in urine
[0074] 1. Experimental conditions of adsorption and elution time
[0075] (1) Adsorption effect of molecularly imprinted microspheres in urine system
[0076] Take 2mL blank urine sample, place it in a stoppered centrifuge tube, accurately add 100ng / mL agonist and 2mM 0.2mM ammonium acetate solution, 50μL β-glucuronidase / arylsulfatase, 20μL agonist internal standard solution and 10 mg molecularly imprinted microspheres. Vortex to mix for 30s. After reacting for 30 minutes, the adsorption capacity was detected, and the results are shown in Table 2.
[0077] As can be seen from the data in Table 2, although compared with the PBS solution system, the adsorption capacity has declined, but the recovery rate can still reach more than 50%. The results show that the molecular polymer microspheres prepared by the present invention can be applied to urine In the liquid enzymatic hydrolysis system, and the adso...
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | aaaaa | aaaaa |
adsorption capacity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com