Chitosan microspheres for controlled delivery of auxins as agrochemicals
文献类型：期刊论文
| 作者 | Fan L(范玲)1; Jin RH(靳荣华)2 ; Le XY(乐学义)1; Zhou XH(周晓华)1; Chen S(陈实)1; Liu HF(刘海峰)1; Xiong YH(熊亚红)1
|
| 刊名 | Microchim Acta
 |
| 出版日期 | 2012 |
| 卷号 | 176期号:3-4页码:381-387 |
| 关键词 | Auxins Chitosan (CS) Controlled release |
| ISSN号 | 0026-3672 |
| 通讯作者 | 陈实 |
| 英文摘要 | Chitosan microspheres were prepared by an emulsion crosslinking method using glutaraldehyde as the cross-linker. Two auxins were dissolved in ethyl benzoate and encapsulated into the microspheres. The best encapsulation efficiency for naphthalene-1-acetic acid and indole-3-acetic acid, respectively, are 68% and 56% and depends on the selection of the appropriate extent of crosslinker, crosslinking time, and the ratio of the oil/water phase. The microspheres were characterized by FTIR spectroscopy. Differential scanning calorimetry was applied to study the thermal stabilities, and scanning electron microscopy to investigate the morphology of the loaded microspheres. In-vitro release studies performed in buffered aqueous methanol at pH 7.4 indicated that the cumulative release rate of the auxins from the particles reaches a maximum (60%) after about 120 h. The release rate in water is higher than the one in methanol. Based on data for the correlation coefficient it is concluded that the drug release is controlled by a diffusion mechanism that follows a super Case-II transport scheme. |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 资助信息 | the key Academic Program of the 3rd phase “211 Project”of South China Agricultural University (2009B010100001) |
| 语种 | 英语 |
| WOS记录号 | WOS:000299921400015 |
| 公开日期 | 2013-10-11 |
| 源URL | [http://210.77.64.217/handle/362003/3864]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 |
| 作者单位 | 1.S China Agr Univ, Inst Biomat, Coll Sci, Guangzhou 510642, Guangdong, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan L,Jin RH,Le XY,et al. Chitosan microspheres for controlled delivery of auxins as agrochemicals[J]. Microchim Acta,2012,176(3-4):381-387. |
| APA | Fan L.,Jin RH.,Le XY.,Zhou XH.,Chen S.,...&Xiong YH.(2012).Chitosan microspheres for controlled delivery of auxins as agrochemicals.Microchim Acta,176(3-4),381-387. |
| MLA | Fan L,et al."Chitosan microspheres for controlled delivery of auxins as agrochemicals".Microchim Acta 176.3-4(2012):381-387. |
入库方式： OAI收割
来源：兰州化学物理研究所
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