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Li Y, Gao Q, Ruan Z. Effects of side-chain lengths on the structure and properties of anhydrides modified starch micelles: Experimental and DPD simulation studies. Carbohydr Polym 2024; 343:122451. [PMID: 39174130 DOI: 10.1016/j.carbpol.2024.122451] [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: 04/21/2024] [Revised: 06/04/2024] [Accepted: 06/28/2024] [Indexed: 08/24/2024]
Abstract
Anhydride-modified starch micelles have great potential in the delivery of hydrophobic guest molecules. This study aimed to experimentally explore the effects of side-chain lengths on the structure and properties of anhydride-modified starch micelles, and to visualize the self-assembly and loading process of these micelles through Dissipative particle dynamics (DPD) simulations. Starch micelles could only form when the carbon chain length exceeded four. The highly hydrophobic C18 starch micelle exhibited the minimum particle size (65 nm) and maximum loading capability (59.10 μg/mg). For each addition carbon atom in the anhydride side chains, the critical micelle concentration (CMC) of starch micelles decreased average of 1.79 %. Thermodynamic results showed that the micellization was an entropy-dominated driven process, and longer carbon chains enhanced the stability of starch micelles. DPD results showed that the starch chains formed the small clusters then spherical aggregates and finally core-shell structure spherical micelle. Curcumin was loaded into micelles by adjoint aggregation-micellization-adsorption mechanism. Overall, this study provides microscopic insight into the micellization and drug-loading mechanisms for anhydrides modified starch micelles.
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Affiliation(s)
- Yang Li
- Carbohydrate Laboratory, School of Food Science and Engineering, South China University of Technology, 381 Wushan Rd., Tianhe District, Guangzhou 510640, PR China
| | - Qunyu Gao
- Carbohydrate Laboratory, School of Food Science and Engineering, South China University of Technology, 381 Wushan Rd., Tianhe District, Guangzhou 510640, PR China; Collaborative Innovation Center of Functional Food by Green Manufacturing, Xuchang, Henan Province 461000, PR China.
| | - Zheng Ruan
- Carbohydrate Laboratory, School of Food Science and Engineering, South China University of Technology, 381 Wushan Rd., Tianhe District, Guangzhou 510640, PR China
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2
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Kang L, Han X, Chang X, Su Z, Fu F, Shan Y, Guo J, Li G. Redox-sensitive self-assembling polymer micelles based on oleanolic modified hydroxyethyl starch: Synthesis, characterisation, and oleanolic release. Int J Biol Macromol 2024; 266:131211. [PMID: 38552688 DOI: 10.1016/j.ijbiomac.2024.131211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 03/12/2024] [Accepted: 03/26/2024] [Indexed: 04/05/2024]
Abstract
Our study aimed at developing polymer micelles that possess redox sensitivity and excellent controlled release properties. 3,3'-dithiodipropionic acid (DTDPA, Abbreviation in synthetic polymers: SS) was introduced as ROS (Reactive oxygen species)response bond and connecting arm to couple hydroxyethyl starch (HES) with oleanolic acid (OA), resulting in the synthesis of four distinct grafting ratios of HES-SS-OA. FTIR (Fourier Transform infrared spectroscopy) and 1H NMR (1H Nuclear magnetic resonance spectra) were used to verify the triumphant combination of HES-SS-OA. Polymer micelles were found to encapsulate OA in an amorphous form, as indicated by the results of XRD (X-ray diffraction) and DSC (Differential scanning calorimetry). When the OA grafting rate on HES increased from 7.72 % to 11.75 %, the particle size decreased from 297.79 nm to 201.39 nm as the polymer micelles became compact due to enhanced hydrophobicity. In addition, the zeta potential changed from -16.42 mv to -25.78 mv, the PDI (polydispersity index) decreased from 0.3649 to 0.2435, and the critical micelle concentration (CMC) decreased from 0.0955 mg/mL to 0.0123 mg/mL. Results of erythrocyte hemolysis, cytotoxicity and cellular uptake illustrated that HES-SS-OA had excellent biocompatibility and minimal cytotoxicity for AML-12 cells. Disulfide bond breakage of HES-SS-OA in the presence of H2O2 and GSH confirmed the redox sensitivity of the HES-SS-OA micelles and their excellent controlled release properties for OA. These findings suggest that HES-SS-OA can be potentially used in the future as a healthcare drug and medicine for the prevention or adjuvant treatment of inflammation.
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Affiliation(s)
- Lingtao Kang
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Hunan Provincial Key Laboratory for Fruits and Vegetables Storage Processing and Quality Safety, Changsha 410125, China
| | - Xiaolei Han
- Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Xia Chang
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Hunan Provincial Key Laboratory for Fruits and Vegetables Storage Processing and Quality Safety, Changsha 410125, China
| | - Zhipeng Su
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Hunan Provincial Key Laboratory for Fruits and Vegetables Storage Processing and Quality Safety, Changsha 410125, China
| | - Fuhua Fu
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Hunan Provincial Key Laboratory for Fruits and Vegetables Storage Processing and Quality Safety, Changsha 410125, China
| | - Yang Shan
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Hunan Provincial Key Laboratory for Fruits and Vegetables Storage Processing and Quality Safety, Changsha 410125, China
| | - Jiajing Guo
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Hunan Provincial Key Laboratory for Fruits and Vegetables Storage Processing and Quality Safety, Changsha 410125, China.
| | - Gaoyang Li
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Hunan Provincial Key Laboratory for Fruits and Vegetables Storage Processing and Quality Safety, Changsha 410125, China.
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3
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Nath PC, Sharma R, Debnath S, Nayak PK, Roy R, Sharma M, Inbaraj BS, Sridhar K. Recent advances in production of sustainable and biodegradable polymers from agro-food waste: Applications in tissue engineering and regenerative medicines. Int J Biol Macromol 2024; 259:129129. [PMID: 38181913 DOI: 10.1016/j.ijbiomac.2023.129129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/30/2023] [Accepted: 12/27/2023] [Indexed: 01/07/2024]
Abstract
Agro-food waste is a rich source of biopolymers such as cellulose, chitin, and starch, which have been shown to possess excellent biocompatibility, biodegradability, and low toxicity. These properties make biopolymers from agro-food waste for its application in tissue engineering and regenerative medicine. Thus, this review highlighted the properties, processing methods, and applications of biopolymers derived from various agro-food waste sources. We also highlight recent advances in the development of biopolymers from agro-food waste and their potential for future tissue engineering and regenerative medicine applications, including drug delivery, wound healing, tissue engineering, biodegradable packaging, excipients, dental applications, diagnostic tools, and medical implants. Additionally, it explores the challenges, prospects, and future directions in this rapidly evolving field. The review showed the evolution of production techniques for transforming agro-food waste into valuable biopolymers. However, these biopolymers serving as the cornerstone in scaffold development and drug delivery systems. With their role in wound dressings, cell encapsulation, and regenerative therapies, biopolymers promote efficient wound healing, cell transplantation, and diverse regenerative treatments. Biopolymers support various regenerative treatments, including cartilage and bone regeneration, nerve repair, and organ transplantation. Overall, this review concluded the potential of biopolymers from agro-food waste as a sustainable and cost-effective solution in tissue engineering and regenerative medicine, offering innovative solutions for medical treatments and promoting the advancement of these fields.
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Affiliation(s)
- Pinku Chandra Nath
- Department of Bio Engineering, National Institute of Technology Agartala, Jirania 799046, India; Department of Applied Biology, University of Science & Technology Meghalaya, Baridua 793101, India
| | - Ramesh Sharma
- Department of Bio Engineering, National Institute of Technology Agartala, Jirania 799046, India; Department of Food Technology, Shri Shakthi Institute of Engineering and Technology, Coimbatore 641062, India
| | - Shubhankar Debnath
- Department of Bio Engineering, National Institute of Technology Agartala, Jirania 799046, India
| | - Prakash Kumar Nayak
- Department of Food Engineering and Technology, Central Institute of Technology Kokrajhar, Kokrajhar 783370, India
| | - Rupak Roy
- SHRM Biotechnologies Pvt Ltd., Kolkata 700155, India
| | | | | | - Kandi Sridhar
- Department of Food Technology, Karpagam Academy of Higher Education (Deemed to be University), Coimbatore 641021, India.
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Chong-Boon Ong, Mohamad Suffian Mohamad Annuar. Hydrogels Responsive Towards Important Biological-Based Stimuli. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422200015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Banach Ł, Williams GT, Fossey JS. Insulin Delivery Using Dynamic Covalent Boronic Acid/Ester‐Controlled Release. ADVANCED THERAPEUTICS 2021. [DOI: 10.1002/adtp.202100118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Łukasz Banach
- School of Chemistry University of Birmingham Edgbaston Birmingham West Midlands B15 2TT UK
| | - George T. Williams
- School of Chemistry University of Birmingham Edgbaston Birmingham West Midlands B15 2TT UK
| | - John S. Fossey
- School of Chemistry University of Birmingham Edgbaston Birmingham West Midlands B15 2TT UK
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6
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Cui C, Ji N, Wang Y, Xiong L, Sun Q. Bioactive and intelligent starch-based films: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.08.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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Shen D, Yu H, Wang L, Chen X, Feng J, Li C, Xiong W, Zhang Q. Glucose-responsive hydrogel-based microneedles containing phenylborate ester bonds and N-isopropylacrylamide moieties and their transdermal drug delivery properties. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110348] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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8
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Atanase LI. Micellar Drug Delivery Systems Based on Natural Biopolymers. Polymers (Basel) 2021; 13:477. [PMID: 33540922 PMCID: PMC7867356 DOI: 10.3390/polym13030477] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 12/30/2022] Open
Abstract
The broad diversity of structures and the presence of numerous functional groups available for chemical modifications represent an enormous advantage for the development of safe, non-toxic, and cost-effective micellar drug delivery systems (DDS) based on natural biopolymers, such as polysaccharides, proteins, and peptides. Different drug-loading methods are used for the preparation of these micellar systems, but it appeared that dialysis is generally recommended, as it avoids the formation of large micellar aggregates. Moreover, the preparation method has an important influence on micellar size, morphology, and drug loading efficiency. The small size allows the passive accumulation of these micellar systems via the permeability and retention effect. Natural biopolymer-based micellar DDS are high-value biomaterials characterized by good compatibility, biodegradability, long blood circulation time, non-toxicity, non-immunogenicity, and high drug loading, and they are biodegraded to non-toxic products that are easily assimilated by the human body. Even if some recent studies reported better antitumoral effects for the micellar DDS based on polysaccharides than for commercial formulations, their clinical use is not yet generalized. This review is focused on the studies from the last decade concerning the preparation as well as the colloidal and biological characterization of micellar DDS based on natural biopolymers.
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Affiliation(s)
- Leonard Ionut Atanase
- Department of Biomaterials, Faculty of Medical Dentistry, "Apollonia" University of Iasi, Pacurari Street, No. 11, 700511 Iasi, Romania
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Gong Y, Mohd S, Wu S, Liu S, Pei Y, Luo X. pH-Responsive Cellulose-Based Microspheres Designed as an Effective Oral Delivery System for Insulin. ACS OMEGA 2021; 6:2734-2741. [PMID: 33553891 PMCID: PMC7860066 DOI: 10.1021/acsomega.0c04946] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 01/14/2021] [Indexed: 05/06/2023]
Abstract
Functional modified cellulose microsphere (CMs) materials exhibit great application potential in drug various fields. Here, we designed pH-responsive carboxylated cellulose microspheres (CCMs) by the citric/hydrochloric acid hydrolysis method to enhance oral bioavailability of insulin by a green route. The CMs were high purity cellulose that dissolved and regenerated from a green solvent by the green sol-gel method. The prepared microspheres were characterized by spectroscopic techniques, such as field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectrum (FT-IR), X-ray diffraction (XPS), etc. The spherical porous structure and carboxylation of cellulose were confirmed by FESEM and FT-IR, respectively. Insulin was loaded into the CCMs by electrostatic interactions, and the insulin release was controlled through ionization of carboxyl groups and proton balance. In vitro insulin release profiles demonstrated the suppression of insulin release in artificial gastric fluid (AGF), while a significant increase at artificial intestinal fluid (AIF) was observed. The insulin release profile was fitted in Korsmeyer-Peppas kinetic model, and insulin release was governed by the Fickian diffusion mechanism. The stability of the secondary structure of insulin was studied by dichroism circular. Excellent biocompatibility and no cytotoxicity of designed CCMs cast them as a potential oral insulin carrier.
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Affiliation(s)
- Yaqi Gong
- School
of Chemical Engineering and Pharmacy, Wuhan
Institute of Technology, LiuFang Campus, No.206, Guanggu 1st road, Donghu
New & High Technology Development Zone, Wuhan, 430205 Hubei Province, P.R. China
| | - Shabbir Mohd
- School
of Chemical Engineering and Pharmacy, Wuhan
Institute of Technology, LiuFang Campus, No.206, Guanggu 1st road, Donghu
New & High Technology Development Zone, Wuhan, 430205 Hubei Province, P.R. China
| | - Simei Wu
- School
of Chemical Engineering and Pharmacy, Wuhan
Institute of Technology, LiuFang Campus, No.206, Guanggu 1st road, Donghu
New & High Technology Development Zone, Wuhan, 430205 Hubei Province, P.R. China
| | - Shilin Liu
- College
of Food Science and Technology, Huazhong
Agricultural University, Wuhan, 430205 Hubei Province, China
- School
of Materials Science and Engineering, Zhengzhou
University, No.100 Science Avenue, Zhengzhou City, 450001 Henan Province, P.R. China
| | - Ying Pei
- School
of Materials Science and Engineering, Zhengzhou
University, No.100 Science Avenue, Zhengzhou City, 450001 Henan Province, P.R. China
- . Tel.: +86-182-39907053
| | - Xiaogang Luo
- School
of Chemical Engineering and Pharmacy, Wuhan
Institute of Technology, LiuFang Campus, No.206, Guanggu 1st road, Donghu
New & High Technology Development Zone, Wuhan, 430205 Hubei Province, P.R. China
- School
of Materials Science and Engineering, Zhengzhou
University, No.100 Science Avenue, Zhengzhou City, 450001 Henan Province, P.R. China
- ; . Tel.: +86-139-86270668
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10
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Yu M, Ji N, Wang Y, Dai L, Xiong L, Sun Q. Starch‐based nanoparticles: Stimuli responsiveness, toxicity, and interactions with food components. Compr Rev Food Sci Food Saf 2020; 20:1075-1100. [DOI: 10.1111/1541-4337.12677] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Mengting Yu
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Na Ji
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Yanfei Wang
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Lei Dai
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Liu Xiong
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Qingjie Sun
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
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11
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Liu Q, Ji N, Xiong L, Sun Q. Rapid gelling, self-healing, and fluorescence-responsive chitosan hydrogels formed by dynamic covalent crosslinking. Carbohydr Polym 2020; 246:116586. [DOI: 10.1016/j.carbpol.2020.116586] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/03/2020] [Accepted: 06/03/2020] [Indexed: 11/25/2022]
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12
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Zhong Y, Song B, He D, Xia Z, Wang P, Wu J, Li Y. Galactose-based polymer-containing phenylboronic acid as carriers for insulin delivery. NANOTECHNOLOGY 2020; 31:395601. [PMID: 32554896 DOI: 10.1088/1361-6528/ab9e26] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The galactose-based polymer is a promising drug delivery material. Herein, a new galactose-based block copolymer, termed as 6-O-vinyl sebacic acid-D-galactopyranosyl ester block 3-acrylamide phenylboric acid p(OVNG-b-AAPBA) was successfully synthesized by 'block copolymer' method. The structure of p(OVNG-b-AAPBA) was proved by nuclear magnetic hydrogen spectrum (1 HNMR) and infrared (IR), the thermal stability was observed by thermogravimetric analyzer, and the molecular weights (Mw and Mn) were demonstrated by Gel permeation chromatography (GPC). The above test results suggested that the polymer of p(OVNG-b-AAPBA) was successfully synthesized, and it had optimal molecular weight and thermal stability, which could be used for investigating the drug delivery system. Then, this block copolymer was prepared to the nanoparticle (NP), these NPs had a satisfactory morphology, and their safety was verified by MTT and chronic animal toxicology test. In addition, insulin was encapsulated by the p(OVNG-b-AAPBA) NPs, the drug loading rate and encapsulation efficiency increased with that of AAPBA in the polymer. Finally, this study confirmed that these NPs can effectively maintain the blood sugar of diabetic mice at 96 h. In conclusion, the current study suggested that the insulin-loaded galactose-based polymer-block-3-acrylamide phenylboric acid NPs had slow-release/glucose-responsive drug release performance, which might play an active role in the diabetes therapy.
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Affiliation(s)
- Yunhua Zhong
- Department of Geratology, The First People's Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming 650032, People's Republic of China
| | - Bo Song
- School of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Dan He
- School of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Zemei Xia
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Peng Wang
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Junzi Wu
- Department of Geratology, The First People's Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming 650032, People's Republic of China
- School of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Yan Li
- Department of Geratology, The First People's Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming 650032, People's Republic of China
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13
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Garcia MAVT, Garcia CF, Faraco AAG. Pharmaceutical and Biomedical Applications of Native and Modified Starch: A Review. STARCH-STARKE 2020. [DOI: 10.1002/star.201900270] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Maria Aparecida Vieira Teixeira Garcia
- Departamento de Alimentos, Faculdade de Farmácia/UFMG Av. Presidente Antônio Carlos, 6627 ‐ Campus Pampulha ‐ CEP 31270‐901 Belo Horizonte ‐ MG ‐ Brasil Brazil
| | - Cleverson Fernando Garcia
- Departamento de QuímicaCentro Federal de Educação Tecnológica de Minas Gerais (CEFET‐MG) Av. Amazonas, 5.253, Nova Suiça. CEP 30421‐169. Belo Horizonte ‐ MG ‐ Brasil Brazil
| | - André Augusto Gomes Faraco
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia/UFMGAv. Presidente Antônio Carlos, 6627 ‐ Campus Pampulha ‐ CEP 31270‐901 Belo Horizonte ‐ MG ‐ Brasil Brazil
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Shen D, Yu H, Wang L, Khan A, Haq F, Chen X, Huang Q, Teng L. Recent progress in design and preparation of glucose-responsive insulin delivery systems. J Control Release 2020; 321:236-258. [DOI: 10.1016/j.jconrel.2020.02.014] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 02/07/2023]
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15
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Facile fabrication of pH-responsive nanoparticles from cellulose derivatives via Schiff base formation for controlled release. Carbohydr Polym 2019; 216:113-118. [PMID: 31047047 DOI: 10.1016/j.carbpol.2019.04.029] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/04/2019] [Accepted: 04/05/2019] [Indexed: 11/20/2022]
Abstract
A controllable drug delivery system demonstrates a promising tool for diverse biomedical applications. In this work, a group of amphiphilic macromolecules was designed and prepared via Schiff base reactions between 2,3-dialdehyde cellulose (DAC) with oleylamine and amino-containing compounds. Benefiting from the self-assemble process of these amphiphilic macromolecules in the poor solvent, a group of novel pH-responsive nanoparticles (NPs) were facilely fabricated by using nanoprecipitation dropping technique. The high amount of aldehyde groups on DAC chains enabled immobilization of tunable amounts of amine compounds (up to 1.67 mmol/g) in the NPs. Furthermore, the Schiff base bonds in NPs allowed the efficient release of the drug in acidic tumor microenvironment by cleaving the Schiff base linkages. This study demonstrates the formation of a group of novel pH-sensitive and drug-loadable NPs, which provide a simple and efficient drug delivery system for the potential application for cancer treatment.
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