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Baqing L, He X, Ni Q, Zhang H, Li T, Lin X, Guo T, Garba BM, Chen X, Zhang J, Peng C, Wang C, Wu L. Purification of gamma-cyclodextrin via selective coordination with potassium ions to form metal-organic frameworks. Carbohydr Polym 2024; 338:122193. [PMID: 38763708 DOI: 10.1016/j.carbpol.2024.122193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/12/2024] [Accepted: 04/20/2024] [Indexed: 05/21/2024]
Abstract
Efficient purification of gamma-cyclodextrin (γ-CD) is always challenging due to its structural similarity to other CDs and low crystallinity in water. In addressing this issue, an approach was proposed based on the formation mechanism of cyclodextrin metal-organic frameworks (CD-MOFs). This method involved the selective coordination of CDs mixture with potassium ions in water, facilitated by ethanol-induced crystallization, leading to the purification of γ-CD. The results showed that potassium ions enhanced γ-CD crystallization, and ethanol was crucial to selectively coordinating potassium ions with γ-CD. The characterizations revealed that the resulting CD-MOFs exhibited a small particle size, high surface area, and high thermal stability, and was identical to γ-CD-MOF, further indicating the final γ-CD with high purity. The separation factors of γ-CD/α-CD and γ-CD/β-CD were 309 and 260, respectively. Moreover, this method was validated through its application to the industrial enzymatic CDs mixture. The purification of γ-CD could achieve 99.99 ± 0.01 % after four crystallization cycles. Therefore, selectively coordinating with potassium ions to form MOFs provided a valuable reference for the purification of γ-CD and even the direct synthesis of γ-CD-MOF from CDs mixture. This advancement will also benefit the future production and application of γ-CD.
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Affiliation(s)
- Libumo Baqing
- Anhui University of Chinese Medicine, Anhui 230000, China; Yangtze Delta Drug Advanced Research Institute, Jiangsu 226133, China
| | - Xiaojian He
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China; Yangtze Delta Drug Advanced Research Institute, Jiangsu 226133, China
| | - Qijia Ni
- Anhui University of Chinese Medicine, Anhui 230000, China; Yangtze Delta Drug Advanced Research Institute, Jiangsu 226133, China
| | - Hanwen Zhang
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China; Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Tianfu Li
- Yangtze Delta Drug Advanced Research Institute, Jiangsu 226133, China; Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xueyuan Lin
- Yangtze Delta Drug Advanced Research Institute, Jiangsu 226133, China; Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Tao Guo
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Bello Mubarak Garba
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Xintao Chen
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Jiwen Zhang
- Anhui University of Chinese Medicine, Anhui 230000, China; Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China; NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Can Peng
- Anhui University of Chinese Medicine, Anhui 230000, China.
| | - Caifen Wang
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China; Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Li Wu
- Anhui University of Chinese Medicine, Anhui 230000, China; Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China; Yangtze Delta Drug Advanced Research Institute, Jiangsu 226133, China; Shenyang Pharmaceutical University, Shenyang 110016, China; NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients, National Institutes for Food and Drug Control, Beijing 100050, China.
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Fan T, Qin J, Dong F, Meng X, Li Y, Wang Y, Liu Q, Wang G. Effects on the crystallization behavior and biocompatibility of poly(LLA-ran-PDO-ran-GA) with poly(d-lactide) as nucleating agents. RSC Adv 2022; 12:10711-10724. [PMID: 35424991 PMCID: PMC8985167 DOI: 10.1039/d2ra00525e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/29/2022] [Indexed: 11/23/2022] Open
Abstract
The blends of poly(l-lactide acid-p-dioxanone-glycolide) (PLPG) with poly(d-lactide) (PDLA) (PLPG/PDLA) were prepared by a solution-casting method. The effects of PDLA on the properties of the PLPG were studied. DSC and WAXD results confirmed that PLA stereocomplex (sc-PLA) crystals were formed by blending PLLA segments in PLPG with PDLA, and the melting endotherm for both PLLA and sc-PLA relied on PDLA content. The non-isothermal crystallization results indicated that the crystallization process was remarkably accelerated by the addition of PDLA. Meanwhile, the results of isothermal crystallization indicated that the half-time of crystallization decreased with the increase of PDLA content. Besides, the enzymatic degradation behavior of the samples showed that with the increase of PDLA content, the mass loss gradually decreased. Furthermore, TGA and DTG results indicated that the thermal degradation of the samples was a complex process. Moreover, the biocompatibility of the samples was tested by cell culture and using CCK-8 and live/dead staining. Results showed that the samples possessed lower cytotoxicity. Therefore, the PLPG/PDLA blends are promising candidate materials in biomedical applications. Sc-PLA crystals in the PLPG/PDLA blends were formed by hydrogen bond between PDLA and PLLA segments, which enhance the crystallization ability of PLLA in the PLPG matrix by decreasing the activation free energy.![]()
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Affiliation(s)
- Tiantang Fan
- College of Medical Engineering & the Key Laboratory for Medical Functional Nanomaterials, Jining Medical University Jining 272067 P. R. China
| | - Jingwen Qin
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine Shanghai 200092 P. R. China
| | - Fen Dong
- Affiliated Hospital of Jianghan University Wuhan City 430015 P. R. China
| | - Xiao Meng
- Nanjing Recongene Biomedical Technologies, Ltd Inc. Nanjing 210032 P. R. China
| | - Yanqi Li
- College of Medical Engineering & the Key Laboratory for Medical Functional Nanomaterials, Jining Medical University Jining 272067 P. R. China
| | - Ying Wang
- College of Medical Engineering & the Key Laboratory for Medical Functional Nanomaterials, Jining Medical University Jining 272067 P. R. China
| | - Qing Liu
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine Shanghai 200092 P. R. China .,Beijing Advanced Medical Technologies, Ltd Inc. Beijing 100085 People's Republic of China
| | - Guannan Wang
- College of Medical Engineering & the Key Laboratory for Medical Functional Nanomaterials, Jining Medical University Jining 272067 P. R. China
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Abarca RL, Rodríguez FJ, Guarda A, Galotto MJ, Bruna JE, Fávaro Perez MA, Ramos Souza Felipe F, Padula M. Application of β-Cyclodextrin/2-Nonanone Inclusion Complex as Active Agent to Design of Antimicrobial Packaging Films for Control of Botrytis cinerea. FOOD BIOPROCESS TECH 2017. [DOI: 10.1007/s11947-017-1926-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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