Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery
| Publication Date: |
2018-07-12
|
|---|---|
| Publisher: |
Royal Society
|
| Electronic ISSN: |
2054-5703
|
| Topics: |
Natural Sciences in General
|
| Keywords: |
environmental chemistry
|
| Published by: |
| _version_ | 1836399003598585856 |
|---|---|
| autor | Chen, H., Huang, G., Zhou, H., Zhou, X., Xu, H. |
| beschreibung | MCM-41 was prepared through the sol–gel method and encapsulated by polydopamine (PDA) before being coordinated with metal ions to form a highly efficient sustained release system (M-PDA–MCM-41) for triazolone delivery. The characterization results confirmed the existence of the coordination bond between the PDA layer and triazolone through the bridge effect from metal ions, which enhanced the interaction between PDA–MCM-41 and triazolone. The adsorption capacity of Fe-PDA–MCM-41 increased up to 173 mg g –1 , which was 160% more than that of MCM-41. The sustained release performance of M-PDA–MCM-41 in different pH values was investigated. Under the conditions of pH ≤7, the release speed of triazolone increased with pH decreasing, whereas its release speed in the weak base condition was slower than in the neutral condition. Therefore, the as-synthesized system showed significant pH-sensitivity in the sustained release process, indicating that the sustained release system can be well stored in the neutral or basic environment and activated in the acid environment. Their sustained release curves described by the Korsmeyer–Peppas equation at pH 7 showed the same behaviour, indicating that PDA decoration or metal ion coordination only increases the steric hindrance and the interaction between carrier and triazolone instead of changing the original structure of the pure MCM material in accordance with X-ray diffraction and Brunauer-Emmett-Teller analysis results. |
| citation_standardnr | 6302761 |
| datenlieferant | ipn_articles |
| feed_id | 220702 |
| feed_publisher | Royal Society |
| feed_publisher_url | http://royalsocietypublishing.org/ |
| insertion_date | 2018-07-12 |
| journaleissn | 2054-5703 |
| publikationsjahr_anzeige | 2018 |
| publikationsjahr_facette | 2018 |
| publikationsjahr_intervall | 7984:2015-2019 |
| publikationsjahr_sort | 2018 |
| publisher | Royal Society |
| quelle | Royal Society Open Science |
| relation | http://rsos.royalsocietypublishing.org/cgi/content/short/5/7/180658?rss=1 |
| schlagwort | environmental chemistry |
| search_space | articles |
| shingle_author_1 | Chen, H., Huang, G., Zhou, H., Zhou, X., Xu, H. |
| shingle_author_2 | Chen, H., Huang, G., Zhou, H., Zhou, X., Xu, H. |
| shingle_author_3 | Chen, H., Huang, G., Zhou, H., Zhou, X., Xu, H. |
| shingle_author_4 | Chen, H., Huang, G., Zhou, H., Zhou, X., Xu, H. |
| shingle_catch_all_1 | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery environmental chemistry MCM-41 was prepared through the sol–gel method and encapsulated by polydopamine (PDA) before being coordinated with metal ions to form a highly efficient sustained release system (M-PDA–MCM-41) for triazolone delivery. The characterization results confirmed the existence of the coordination bond between the PDA layer and triazolone through the bridge effect from metal ions, which enhanced the interaction between PDA–MCM-41 and triazolone. The adsorption capacity of Fe-PDA–MCM-41 increased up to 173 mg g –1 , which was 160% more than that of MCM-41. The sustained release performance of M-PDA–MCM-41 in different pH values was investigated. Under the conditions of pH ≤7, the release speed of triazolone increased with pH decreasing, whereas its release speed in the weak base condition was slower than in the neutral condition. Therefore, the as-synthesized system showed significant pH-sensitivity in the sustained release process, indicating that the sustained release system can be well stored in the neutral or basic environment and activated in the acid environment. Their sustained release curves described by the Korsmeyer–Peppas equation at pH 7 showed the same behaviour, indicating that PDA decoration or metal ion coordination only increases the steric hindrance and the interaction between carrier and triazolone instead of changing the original structure of the pure MCM material in accordance with X-ray diffraction and Brunauer-Emmett-Teller analysis results. Chen, H., Huang, G., Zhou, H., Zhou, X., Xu, H. Royal Society 2054-5703 20545703 |
| shingle_catch_all_2 | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery environmental chemistry MCM-41 was prepared through the sol–gel method and encapsulated by polydopamine (PDA) before being coordinated with metal ions to form a highly efficient sustained release system (M-PDA–MCM-41) for triazolone delivery. The characterization results confirmed the existence of the coordination bond between the PDA layer and triazolone through the bridge effect from metal ions, which enhanced the interaction between PDA–MCM-41 and triazolone. The adsorption capacity of Fe-PDA–MCM-41 increased up to 173 mg g –1 , which was 160% more than that of MCM-41. The sustained release performance of M-PDA–MCM-41 in different pH values was investigated. Under the conditions of pH ≤7, the release speed of triazolone increased with pH decreasing, whereas its release speed in the weak base condition was slower than in the neutral condition. Therefore, the as-synthesized system showed significant pH-sensitivity in the sustained release process, indicating that the sustained release system can be well stored in the neutral or basic environment and activated in the acid environment. Their sustained release curves described by the Korsmeyer–Peppas equation at pH 7 showed the same behaviour, indicating that PDA decoration or metal ion coordination only increases the steric hindrance and the interaction between carrier and triazolone instead of changing the original structure of the pure MCM material in accordance with X-ray diffraction and Brunauer-Emmett-Teller analysis results. Chen, H., Huang, G., Zhou, H., Zhou, X., Xu, H. Royal Society 2054-5703 20545703 |
| shingle_catch_all_3 | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery environmental chemistry MCM-41 was prepared through the sol–gel method and encapsulated by polydopamine (PDA) before being coordinated with metal ions to form a highly efficient sustained release system (M-PDA–MCM-41) for triazolone delivery. The characterization results confirmed the existence of the coordination bond between the PDA layer and triazolone through the bridge effect from metal ions, which enhanced the interaction between PDA–MCM-41 and triazolone. The adsorption capacity of Fe-PDA–MCM-41 increased up to 173 mg g –1 , which was 160% more than that of MCM-41. The sustained release performance of M-PDA–MCM-41 in different pH values was investigated. Under the conditions of pH ≤7, the release speed of triazolone increased with pH decreasing, whereas its release speed in the weak base condition was slower than in the neutral condition. Therefore, the as-synthesized system showed significant pH-sensitivity in the sustained release process, indicating that the sustained release system can be well stored in the neutral or basic environment and activated in the acid environment. Their sustained release curves described by the Korsmeyer–Peppas equation at pH 7 showed the same behaviour, indicating that PDA decoration or metal ion coordination only increases the steric hindrance and the interaction between carrier and triazolone instead of changing the original structure of the pure MCM material in accordance with X-ray diffraction and Brunauer-Emmett-Teller analysis results. Chen, H., Huang, G., Zhou, H., Zhou, X., Xu, H. Royal Society 2054-5703 20545703 |
| shingle_catch_all_4 | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery environmental chemistry MCM-41 was prepared through the sol–gel method and encapsulated by polydopamine (PDA) before being coordinated with metal ions to form a highly efficient sustained release system (M-PDA–MCM-41) for triazolone delivery. The characterization results confirmed the existence of the coordination bond between the PDA layer and triazolone through the bridge effect from metal ions, which enhanced the interaction between PDA–MCM-41 and triazolone. The adsorption capacity of Fe-PDA–MCM-41 increased up to 173 mg g –1 , which was 160% more than that of MCM-41. The sustained release performance of M-PDA–MCM-41 in different pH values was investigated. Under the conditions of pH ≤7, the release speed of triazolone increased with pH decreasing, whereas its release speed in the weak base condition was slower than in the neutral condition. Therefore, the as-synthesized system showed significant pH-sensitivity in the sustained release process, indicating that the sustained release system can be well stored in the neutral or basic environment and activated in the acid environment. Their sustained release curves described by the Korsmeyer–Peppas equation at pH 7 showed the same behaviour, indicating that PDA decoration or metal ion coordination only increases the steric hindrance and the interaction between carrier and triazolone instead of changing the original structure of the pure MCM material in accordance with X-ray diffraction and Brunauer-Emmett-Teller analysis results. Chen, H., Huang, G., Zhou, H., Zhou, X., Xu, H. Royal Society 2054-5703 20545703 |
| shingle_title_1 | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery |
| shingle_title_2 | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery |
| shingle_title_3 | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery |
| shingle_title_4 | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery |
| timestamp | 2025-06-30T23:36:04.283Z |
| titel | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery |
| titel_suche | Highly efficient triazolone/metal ion/polydopamine/MCM-41 sustained release system with pH sensitivity for pesticide delivery |
| topic | TA-TD |
| uid | ipn_articles_6302761 |