10月份什么星座ph敏感的聚丙烯酰胺水凝胶的制备方法英文、
Preparation Method of pH-Sensitive Polyacrylamide Hydrogel
Polyacrylamide hydrogel is a versatile material that has many applications in biomedical engineering, drug delivery, and tissue engineering. In this study, we prent a method for preparing pH-nsitive polyacrylamide hydrogel using a crosslinker and a pH-responsive monomer.
Materials:
- Acrylamide (AAm)
- N,N'-methylenebisacrylamide (MBAA)
- N,N,N',N'-tetramethylethylenediamine (TEMED)
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- Ammonium persulfate (APS)
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- N-(3-aminopropyl) methacrylamide hydrochloride (APMA)
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- Sodium hydroxide (NaOH)
- Hydrochloric acid (HCl)
Method:
1. Preparation of monomer solution: Dissolve APMA in deionized water (DI water) at a concentration of 1 M.
2. Preparation of crosslinker solution: Dissolve MBAA in DI water at a concentration of 1% (w/v).
节约作文 3. Preparation of initiator solution: Dissolve APS in DI water at a concentration of 10% (w/v).
4. Preparation of gelation buffer: Dissolve NaOH in DI water to obtain a 0.1 M solution. Adjust the pH to 7.4 using HCl.
5. Preparation of hydrogel: Mix AAm, APMA, and MBAA at a ratio of 99:1:0.1 (w/w/w).
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Add TEMED and APS to the mixture to initiate polymerization. Pour the mixture into a mold and allow it to polymerize at room temperature for 2 hours.
6. pH nsitivity test: Cut the hydrogel into small pieces and place them in different pH solutions (pH 2, 4, 6, 7.4, 8, and 10). Obrve the swelling behavior of the hydrogel at different pH values.
Results:水果拼盘作文
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The resulting hydrogel exhibited pH nsitivity, as evidenced by its swelling behavior in different pH solutions. The hydrogel swelled more in alkaline solutions than in acidic solutions. This can be attributed to the prence of the pH-responsive monomer APMA, which undergoes protonation and deprotonation at different pH values.
Conclusion:
In conclusion, we have developed a simple method for preparing pH-nsitive polyacrylamide hydrogel using a crosslinker and a pH-responsive monomer. The resultin
g hydrogel exhibited pH nsitivity and may have potential applications in drug delivery and tissue engineering.。
