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Preparation method of hydrophilic material loaded polymer microcapsule

A hydrophilic material and polymer technology, applied in the chemical industry, the intersection of materials science and biomedicine, can solve problems such as microcapsules that have not yet loaded hydrophilic materials, and achieve low synthesis cost, simple operation process, The effect of strong packaging ability

Active Publication Date: 2017-07-28
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many domestic and foreign literatures on the preparation of oil-loaded microcapsules by sonochemical method, up to now, there are no domestic and foreign literature and patent reports on the preparation of microcapsules loaded with hydrophilic materials by sonochemical method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Dissolve bovine serum albumin (500mg) in deionized water (10mL) to form a bovine serum albumin aqueous solution; dissolve NaCl (10mg) into a fluid chitosan hydrogel (10mL), and then pass Stir (500rpm) to disperse chitosan hydrogel evenly in soybean oil containing sorbitan oleate (20mg / mL) (V 水凝胶 :V 油相 =1:5) to form an oil phase containing NaCl; add bovine serum albumin aqueous solution and soybean oil containing NaCl to the reaction flask at a volume ratio of 3:1, and place it in a water bath (40°C); The probe is placed at the oil / water two-phase interface, and high-intensity ultrasonic radiation (200W / cm 2 , 10min); after the reaction, the reaction solution was cooled (10°C), centrifuged (1000rpm), and the lower sediment was washed (3 times), and finally a bovine serum albumin cross-linked membrane was obtained, which contained Soybean oil with NaCl as the core of the microcapsules. Under the optical microscope, the microcapsules are spherical or ellipsoidal; the av...

Embodiment 2

[0028]Dissolve hemoglobin (300mg) in deionized water (10mL) to form a hemoglobin aqueous solution; dissolve rhodamine B (50μg) into a fluid chitosan hydrogel (10mL), and then stir it at high speed (600rpm) Chitosan hydrogel was uniformly dispersed in soybean oil containing sorbitan oleate (20 mg / mL) (V 水凝胶 :V 油相 =1:10), forming an oil phase containing rhodamine B; adding hemoglobin aqueous solution and soybean oil containing rhodamine B to the reaction flask at a volume ratio of 3:1, and placing it in a water bath (30°C); The ultrasonic probe is placed on the oil / water two-phase interface to perform high-intensity ultrasonic radiation (200W / cm 2 , 10min); after the reaction, the reaction solution was cooled (5°C), centrifuged (1000rpm), and the lower sediment was washed (4 times), and finally a hemoglobin cross-linked membrane was obtained, which was loaded with rhodamine B. Soybean oil as the core of the microcapsules. Under the optical microscope, the microcapsules are sp...

Embodiment 3

[0030] Dissolve hemoglobin (300mg) in deionized water (10mL) to form a hemoglobin aqueous solution; dissolve benproperine phosphate (50μg) into a fluid polyvinyl alcohol hydrogel (10mL), and then stir (500rpm) uniformly disperse polyvinyl alcohol hydrogel into chicken fat containing sorbitan oleate (50mg / mL) (V 水凝胶 :V 油相 =1:10), form the oily phase that contains benproperine phosphate; add hemoglobin aqueous solution and the chicken oil that contains benproperine phosphate in reaction bottle by volume ratio 5:1, and it is placed in water bath (40 ℃ ); put the ultrasonic probe on the oil / water two-phase interface, and perform high-intensity ultrasonic radiation (300W / cm 2 , 5min); after the reaction, the reaction solution was cooled (10°C), centrifuged (1500rpm), and the lower sediment was washed (5 times), and finally a hemoglobin cross-linked membrane was obtained, which was loaded with phenylpropanoid phosphate. Piperine's chanterelle-cored microcapsules. Under an optical...

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PUM

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Abstract

The invention discloses a preparation method of a hydrophilic material loaded polymer microcapsule. The polymer microcapsule is a microstructure material constructed from polymer molecules, the microstructure material takes a cross linking membrane as a shell and an oil phase loaded with a hydrophilic material as a core, the preparation method is as follows: the oil phase containing the hydrophilic material and an aqueous phase containing a polymer molecule are subjected to high-intensity ultrasonic radiation, so that the hydrophilic material loaded polymer microcapsule is further prepared. The method is simple, convenient and fast, is efficient and environment-friendly, is wide in source raw materials and strong in packaging capability, and is widely suitable for loading various hydrophilic materials. In addition, the controllable release of the hydrophilic material is realized based on the characteristics of the polymer microcapsule, like reduction responsiveness and hydrophilic-hydrophobic property of the cross linking membrane. Therefore, the preparation method is of great significance for simply efficiently preparing a microstructure carrier and synchronously realizing the safe packaging of the hydrophilic material.

Description

technical field [0001] The invention belongs to the cross field of chemical industry, material science and biomedicine, and specifically relates to a preparation method of polymer microcapsules loaded with hydrophilic materials. Background technique [0002] Microcapsules are micron-scale or sub-micron-scale coatings with a core-shell structure that embed or seal solids, liquids, and gases using encapsulating substances. Due to the particularity of structure, the variability of performance and the robustness of loading capacity, microcapsules are widely used in medicine, biology, food, chemical industry, agriculture and other fields, and have always been a frontier and hot spot of scientific research. At present, there are many methods for preparing microcapsules, such as aqueous phase separation, physical self-assembly, monomer polymerization, chemical cross-linking, extrusion, template-assisted methods, etc., and the encapsulation strategy of microcapsules for materials T...

Claims

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Application Information

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IPC IPC(8): B01J13/02A61K9/50A61K47/42A61K47/38A61K49/00A61K51/08A61K51/12
CPCA61K9/0009A61K9/5042A61K9/5052A61K49/0056A61K49/0091A61K51/08A61K51/081A61K51/1265B01J13/02
Inventor 李占锋王宗花杜晓玉林春明徐显朕周瑜
Owner QINGDAO UNIV