Home

Citation: LI Guo-Ming, YE Jun-Sheng, ZHENG Guo-Hong, LIU Cong, WANG Chao-Yang. Preparation of Levodopa-Chitosan Microspheres and The Drug-Release Performance[J]. Chinese Journal of Applied Chemistry, ;2007, 24(9): 1062-1065. shu

Preparation of Levodopa-Chitosan Microspheres and The Drug-Release Performance

1.
School of Chemistry and Environment, South China Normal University, GuangZhou 510006

Corresponding author: LI Guo-Ming,
Received Date: 8 September 2006
Available Online: 8 February 2007

With sodium tripolyphosphate as ionic crosslinking reagent, levodopa-chitosan microspheres were prepared by means of emulsion-dispersion and ionic cross-linking. The physicochemical properties and the drug-release performance of the microspheres were investigated. The polarized optical microscopy showed that the particles prepared were basically spheric. The average diameter of the microspheres detected by a laser particle analyzer was about 3.5 μm. FT-IR analysis indicated that the protonated amino groups in chitosan combined with tripolyphosphate via electrostatic interactions, and levodopa was enwrapped in chitosan microspheres. DSC and XRD analyses indicated that levodopa crystals existed in the microspheres, while chitosan was amorphous. TG analysis showed that the crystallinity of chitosan was lower when chitosan combined with tripolyphosphate. The drug-release performance of the microspheres was affected by the pH value of the media. In acid media, the release of levodopa slowed down when the concentration of chitosan was higher or when the mass ratio of levodopa to chitosan increased. In basic media, the drug-releasing rate was, on the whole, higher than that in acid media.
- levodopa,
- chitosan,
- microspheres,
- ionic cross-linking
1. [1]
  Dong-Bing Cheng , Junxin Duan , Haiyu Gao . Experimental Teaching Design on Chitosan Extraction and Preparation of Antibacterial Gel. University Chemistry, 2024, 39(2): 330-339. doi: 10.3866/PKU.DXHX202308053
2. [2]
  Xiaojun Liu , Lang Qin , Yanlei Yu . Dynamic Manipulation of Photonic Bandgaps in Cholesteric Liquid Crystal Microdroplets for Applications. Acta Physico-Chimica Sinica, 2024, 40(5): 2305018-0. doi: 10.3866/PKU.WHXB202305018
3. [3]
  Sumiya Akter Dristy , Md Ahasan Habib , Shusen Lin , Mehedi Hasan Joni , Rutuja Mandavkar , Young-Uk Chung , Md Najibullah , Jihoon Lee . Exploring Zn doped NiBP microspheres as efficient and stable electrocatalyst for industrial-scale water splitting. Acta Physico-Chimica Sinica, 2025, 41(7): 100079-0. doi: 10.1016/j.actphy.2025.100079
4. [4]
  Ying Li , Yushen Zhao , Kai Chen , Xu Liu , Tingfeng Yi , Li-Feng Chen . Rational Design of Cross-Linked N-Doped C-Sn Nanofibers as Free-Standing Electrodes towards High-Performance Li-Ion Battery Anodes. Acta Physico-Chimica Sinica, 2024, 40(3): 2305007-0. doi: 10.3866/PKU.WHXB202305007
5. [5]
  Zhicheng JU , Wenxuan FU , Baoyan WANG , Ao LUO , Jiangmin JIANG , Yueli SHI , Yongli CUI . MOF-derived nickel-cobalt bimetallic sulfide microspheres coated by carbon: Preparation and long cycling performance for sodium storage. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 661-674. doi: 10.11862/CJIC.20240363
6. [6]
  Xiutao Xu , Chunfeng Shao , Jinfeng Zhang , Zhongliao Wang , Kai Dai . Rational Design of S-Scheme CeO₂/Bi₂MoO₆ Microsphere Heterojunction for Efficient Photocatalytic CO₂ Reduction. Acta Physico-Chimica Sinica, 2024, 40(10): 2309031-0. doi: 10.3866/PKU.WHXB202309031
7. [7]
  Tong WANG , Qinyue ZHONG , Qiong HUANG , Weimin GUO , Xinmei LIU . Mn-doped carbon quantum dots/Fe-doped ZnO flower-like microspheres heterojunction: Construction and photocatalytic performance. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1589-1600. doi: 10.11862/CJIC.20250011
8. [8]
  Qi Li , Pingan Li , Zetong Liu , Jiahui Zhang , Hao Zhang , Weilai Yu , Xianluo Hu . Fabricating Micro/Nanostructured Separators and Electrode Materials by Coaxial Electrospinning for Lithium-Ion Batteries: From Fundamentals to Applications. Acta Physico-Chimica Sinica, 2024, 40(10): 2311030-0. doi: 10.3866/PKU.WHXB202311030
9. [9]
  Li'na ZHONG , Jingling CHEN , Qinghua ZHAO . Synthesis of multi-responsive carbon quantum dots from green carbon sources for detection of iron ions and L-ascorbic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 709-718. doi: 10.11862/CJIC.20240280
10. [10]
  Xiaojing Tian , Zhichun Huang , Qingsong Zhang , Xu Wang , Ning Yang , Nanping Deng . PNIPAm Thermo-Responsive Nanofibers Mats: Morphological Stability and Response Behavior under Cross-Linking. Acta Physico-Chimica Sinica, 2024, 40(4): 2304037-0. doi: 10.3866/PKU.WHXB202304037
11. [11]
  Gaofeng Zeng , Shuyu Liu , Manle Jiang , Yu Wang , Ping Xu , Lei Wang . Micro/Nanorobots for Pollution Detection and Toxic Removal. University Chemistry, 2024, 39(9): 229-234. doi: 10.12461/PKU.DXHX202311055
12. [12]
  Guimin ZHANG , Wenjuan MA , Wenqiang DING , Zhengyi FU . Synthesis and catalytic properties of hollow AgPd bimetallic nanospheres. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 963-971. doi: 10.11862/CJIC.20230293
13. [13]
  Xue Xiao , Jiachun Li , Xiangtong Meng , Jieshan Qiu . Sulfur-Doped Carbon-Coated Fe_0.95S_1.05 Nanospheres as Anodes for High-Performance Sodium Storage. Acta Physico-Chimica Sinica, 2024, 40(6): 2307006-0. doi: 10.3866/PKU.WHXB202307006
14. [14]
  Min Gu , Huiwen Xiong , Liling Liu , Jilie Kong , Xueen Fang . Rapid Quantitative Detection of Procalcitonin by Microfluidics: An Instrumental Analytical Chemistry Experiment. University Chemistry, 2024, 39(4): 87-93. doi: 10.3866/PKU.DXHX202310120
15. [15]
  Zijian Jiang , Yuang Liu , Yijian Zong , Yong Fan , Wanchun Zhu , Yupeng Guo . Preparation of Nano Zinc Oxide by Microemulsion Method and Study on Its Photocatalytic Activity. University Chemistry, 2024, 39(5): 266-273. doi: 10.3866/PKU.DXHX202311101
16. [16]
  Yuyao Wang , Zhitao Cao , Zeyu Du , Xinxin Cao , Shuquan Liang . Research Progress of Iron-based Polyanionic Cathode Materials for Sodium-Ion Batteries. Acta Physico-Chimica Sinica, 2025, 41(4): 2406014-0. doi: 10.3866/PKU.WHXB202406014
17. [17]
  Jiaxing Cai , Wendi Xu , Haoqiang Chi , Qian Liu , Wa Gao , Li Shi , Jingxiang Low , Zhigang Zou , Yong Zhou . Highly Efficient InOOH/ZnIn₂S₄ Hollow Sphere S-Scheme Heterojunction with 0D/2D Interface for Enhancing Photocatalytic CO₂ Conversion. Acta Physico-Chimica Sinica, 2024, 40(11): 2407002-0. doi: 10.3866/PKU.WHXB202407002
18. [18]
  Yu Wang , Shoulei Zhang , Tianming Lv , Yan Su , Xianyu Liu , Fuping Tian , Changgong Meng . Introduce a Comprehensive Inorganic Synthesis Experiment: Synthesis of Nano Zinc Oxide via Microemulsion Using Waste Soybean Oil. University Chemistry, 2024, 39(7): 316-321. doi: 10.3866/PKU.DXHX202311035
19. [19]
  Zeyi Yan , Ruitao Liu , Xinyu Qi , Yuxiang Zhang , Lulu Sun , Xiangyuan Li , Anchao Feng . Exploration of Suspension Polymerization: Preparation and Fluorescence Stability of Perovskite Polystyrene Microbeads. University Chemistry, 2025, 40(4): 72-79. doi: 10.12461/PKU.DXHX202405110
20. [20]
  Yadan Luo , Hao Zheng , Xin Li , Fengmin Li , Hua Tang , Xilin She . Modulating reactive oxygen species in O, S co-doped C₃N₄ to enhance photocatalytic degradation of microplastics. Acta Physico-Chimica Sinica, 2025, 41(6): 100052-0. doi: 10.1016/j.actphy.2025.100052

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(737)
HTML views(88)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return