1
|
Ren Z, Li H, Li J, Cai J, Zhong L, Ma Y, Pang Y. Green synthesis of reduced graphene oxide/chitosan/gold nanoparticles composites and their catalytic activity for reduction of 4-nitrophenol. Int J Biol Macromol 2023; 229:732-745. [PMID: 36586657 DOI: 10.1016/j.ijbiomac.2022.12.282] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/17/2022] [Accepted: 12/25/2022] [Indexed: 12/31/2022]
Abstract
Gold nanoparticles (AuNPs) have attracted extensive attention in the past few years due to their unique properties and great potential application in catalysis. However, the application of AuNPs remains a significant challenge due to the lack of high efficiency and stability caused by aggregation. Immobilization of AuNPs on appropriate support shows promising results in avoiding aggregation and improving catalytic activity. In this work, reduced graphene oxide/chitosan/gold nanoparticles (rGO/CHS/AuNPs) composites were prepared using chitosan with different molecular weights (MW) as a reducing agent and stabilizer, and characterized by FT-IR, XRD, XPS, SEM, FESEM, EDS, TEM, HRTEM, and TGA. The preparation conditions of rGO/CHS/AuNPs composites, including chitosan MW, CHS/GO mass ratio, reaction temperature and time, and HAuCl4 concentration were investigated in detail. The results indicated that reduction activity of chitosan for GO increased with the decrease of chitosan MW. The C/O ratio of rGO reduced by low molecular weight chitosan (LMWC) with viscosity-average molecular weight (Mv) of 21 kDa was 6.34. Small spherical AuNPs were uniformly immobilized on the rGO surface. The particle size of AuNPs increased from 9.29 to 13.03 nm as chitosan MW decreased from 465 to 21 kDa. The rGO/CHS/AuNPs showed good catalytic activity for the reduction of 4-NP in the presence of NaBH4. The catalytic activity of rGO/CHS/AuNPs was closely related to chitosan MW. rGO/CHS/AuNPs synthesized by LMWC with Mv of 21 kDa showed the highest kinetic rate constant of 0.2067 min-1. The results of this experimental study could be useful in the development of effective catalysts for the reduction of aromatic nitro compounds.
Collapse
Affiliation(s)
- Zhijie Ren
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Huanhuan Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Jin Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
| | - Jun Cai
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Lian Zhong
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Yingqi Ma
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Yajie Pang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| |
Collapse
|
2
|
Sethi S, Medha, Kaith BS. A review on chitosan-gelatin nanocomposites: Synthesis, characterization and biomedical applications. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
3
|
Jafar M, Khalid MS, Alghamdi H, Amir M, Al Makki SA, Alotaibi OS, Al Rmais AA, Imam SS, Alshehri S, Gilani SJ. Formulation of Apigenin-Cyclodextrin-Chitosan Ternary Complex: Physicochemical Characterization, In Vitro and In Vivo Studies. AAPS PharmSciTech 2022; 23:71. [PMID: 35146576 DOI: 10.1208/s12249-022-02218-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 01/17/2022] [Indexed: 01/01/2023] Open
Abstract
The current investigation was performed with an aim to improve the aqueous solubility, dissolution rate, and thus the biological activity of apigenin (APG) using the solubilizers hydroxypropyl beta-cyclodextrin (HPβCD) and chitosan (CTSN). A binary and ternary inclusion complexes of APG with HPβCD and CTSN were prepared by physical mixing, fusion, and solvent evaporation methods. The liquid state characterization of the APG, the solubilizers, and the physical and chemical interactions between them was done through phase solubility approach. The solid-state characterization was performed by proton nuclear magnetic resonance (1H-NMR), differential scanning calorimetry (DSC), and X-ray diffractometry (XRD). The in vitro dissolution test and antioxidant activity and in vivo anti-inflammatory activity of the ternary inclusion complex in albino rats were performed to assess the performance of the APG. Phase solubility study results revealed a remarkable increase in apparent stability constant (Kc) and complexation efficiency (CE) of HPβCD in presence of CTSN in ternary complex with above 8 folds more increment in solubility of APG than its binary complex. The in vitro dissolution rate, antioxidant activity, and the anti-inflammatory effect of the APG ternary inclusion complex were found to be significantly higher than that of pure APG. Solid state characterization confirmed the formation of a ternary inclusion complex. 1H-NMR study gave more insight at molecular level into how different groups of APG were responsible for complex formation with the HPβCD and how CTSN was significantly influencing on the APG-HPβCD complex formed. Nevertheless, pharmacokinetic and histopathological studies of our APG-HPβCD-CTSN ternary complex would yield much rewarding results.
Collapse
|
4
|
Xu L, Ma F, Leung FKL, Qin C, Lu WW, Tang B. Chitosan-strontium chondroitin sulfate scaffolds for reconstruction of bone defects in aged rats. Carbohydr Polym 2021; 273:118532. [PMID: 34560945 DOI: 10.1016/j.carbpol.2021.118532] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/14/2021] [Accepted: 07/30/2021] [Indexed: 12/20/2022]
Abstract
Bone defects caused by trauma have become increasingly common in aged populations. Clinically, because of the relatively decreased bone healing capacity compared with the youth adults, bone defect repair in the elderly remains challenging. The development of effective biomaterials targeted at bone defects in the elderly is a key component of bone-tissue engineering strategies. However, little attention has been paid to bone regeneration in the elderly. Here, we developed a new scaffold chitosan-Strontium chondroitin sulfate (CH-SrCS) and evaluated its effect on improving bone regeneration. We find that the CH-SrCS scaffold displayed positive effects on downregulation of inflammation and osteoclastogenesis related mRNA expressions while demonstrating a significant increase in the expression level of BMP2. Finally, we show that the bone defects healing effects as assessed using an aged rats' bone defects model. Ultimately, this work also provides insights into the design of effective biomaterials targeted at bone defects in the elderly.
Collapse
Affiliation(s)
- Lei Xu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, PR China; Department of Orthopeadics and Traumatology, LKS Faculty of Medicine, the University of Hong Kong, HK SAR, PR China; Department of Orthopeadics and Traumatology, Guangdong Second Provincial General Hospital, Guangzhou 510317, PR China
| | - Fenbo Ma
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, PR China
| | - Frankie K L Leung
- Department of Orthopeadics and Traumatology, LKS Faculty of Medicine, the University of Hong Kong, HK SAR, PR China
| | - Chenghe Qin
- Department of Orthopeadics and Traumatology, Guangdong Second Provincial General Hospital, Guangzhou 510317, PR China.
| | - William W Lu
- Department of Orthopeadics and Traumatology, LKS Faculty of Medicine, the University of Hong Kong, HK SAR, PR China.
| | - Bin Tang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, PR China; Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, PR China; Shenzhen Key Laboratory of Cell Microenvironment, PR China.
| |
Collapse
|
5
|
In vitro-in vivo evaluation of olopatadine incorporated chitosan nanoparticles for the treatment of ocular allergy. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
6
|
Cyclodextrin Multicomponent Complexes: Pharmaceutical Applications. Pharmaceutics 2021; 13:pharmaceutics13071099. [PMID: 34371790 PMCID: PMC8309128 DOI: 10.3390/pharmaceutics13071099] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 11/16/2022] Open
Abstract
Cyclodextrins (CDs) are naturally available water-soluble cyclic oligosaccharides widely used as carriers in the pharmaceutical industry for their ability to modulate several properties of drugs through the formation of drug-CD complexes. The addition of an auxiliary substance when forming multicomponent complexes is an adequate strategy to enhance complexation efficiency and to facilitate the therapeutic applicability of different drugs. This review discusses multicomponent complexation using amino acids; organic acids and bases; and water-soluble polymers as auxiliary excipients. Special attention is given to improved properties by including information on the solubility, dissolution, permeation, stability and bioavailability of several relevant drugs. In addition, the use of multicomponent CD complexes to enhance therapeutic drug effects is summarized.
Collapse
|
7
|
Liao DW, Cheng C, Liu JP, Zhao LY, Huang DC, Chen GT. Characterization and antitumor activities of polysaccharides obtained from ginger (Zingiber officinale) by different extraction methods. Int J Biol Macromol 2020; 152:894-903. [PMID: 32126202 DOI: 10.1016/j.ijbiomac.2020.02.325] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 02/25/2020] [Accepted: 02/28/2020] [Indexed: 12/16/2022]
Abstract
Three different extraction technologies including hot water extraction (HWE), enzyme assisted extraction (EAE) and ultrasonic cell grinder extraction (UCGE) were employed to extract crude ginger polysaccharides (GPs) under their respective best parameters, then crude GPs were purified by DEAE cellulose-52 and Sephadex G-200 size-exclusion chromatography in that order. Five GPs fractions (HGP, EGP1, EGP2, UGP1, and UGP2, respectively) were obtained. The differences of five GPs in chemical composition, characterization and antitumor activities were further compared. The molecular weights were different in five GPs, varying from 11.81 to 1831.75 kDa. Mannose and glucose as the main monosaccharide and the glycosidic linkage of →4)-α-D-Glc(1→ and -α-Manp-(1→ existed in both five GPs. While EGP2 and UGP1 possessed specific structure of →6)-β-D-Galp-(1→ and UGP1 contained more sulfate group. Moreover, UGP1 exhibited strong inhibitory effect on three tumor cells especially the colon cancer. The inhibition rates of UGP1 on H1975, HCT116 and MCF-7 were 23.339 ± 2.285%, 56.843 ± 2.405% and 21.061 ± 1.920% respectively. The study indicated GPs extracted by UCGE could reserve more active structure and inhibit colon cancer more significantly.
Collapse
Affiliation(s)
- Deng-Wei Liao
- Department of Food Quality and Safety, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Chen Cheng
- Department of Food Quality and Safety, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Jun-Ping Liu
- Department of Food Quality and Safety, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Li-Yan Zhao
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - De-Chun Huang
- Department of Food Quality and Safety, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Gui-Tang Chen
- Department of Food Quality and Safety, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China.
| |
Collapse
|
8
|
Shi X, Jiang S, Hu Y, Peng X, Yang H, Qian X. Phosphorylated chitosan-cobalt complex: A novel green flame retardant for polylactic acid. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4196] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xingxing Shi
- School of Mechanical and Automotive Engineering; South China University of Technology; Guangzhou 510641 China
| | - Saihua Jiang
- School of Mechanical and Automotive Engineering; South China University of Technology; Guangzhou 510641 China
| | - Yuan Hu
- State Key Laboratory of Fire Science; University of Science and Technology of China; Hefei 230027 China
| | - Xiangfang Peng
- School of Mechanical and Automotive Engineering; South China University of Technology; Guangzhou 510641 China
| | - Hongyu Yang
- College of Materials Science and Engineering; Chongqing University; Chongqing 400044 China
| | - Xiaodong Qian
- Key Lab Firefighting & Rescuing Technology, Ministry of Public Security; Chinese People's Armed Police Force Academy; Xichang Road 220 Langfang City Hebei Province 065000 China
| |
Collapse
|
9
|
Construction of a Fluorescent H₂O₂ Biosensor with Chitosan 6-OH Immobilized β-Cyclodextrin Derivatives. Mar Drugs 2017; 15:md15090284. [PMID: 28869533 PMCID: PMC5618423 DOI: 10.3390/md15090284] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/18/2017] [Accepted: 08/26/2017] [Indexed: 11/16/2022] Open
Abstract
In the present work, a fluorescent H₂O₂ biosensor was constructed by encapsulating fluorescent probe Rhodamine B (RhmB) in the hydrophobic cavity of the cyclodextrin (β-CD) and immobilizing catalase (CAT) on the 2-NH₂ of chitosan (CTS) in a chitosan 6-OH immobilized β-cyclodextrin derivative (CTS-6-CD). The inclusion complex of CTS-6-CD to RhmB (CTS-6-CD-RhmB) was prepared by a solution method. Its structure and inclusion efficiency were determined by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and fluorescence spectroscopy (FL). CAT was immobilized on CTS-6-CD-RhmB to eventually form the functional membrane, CTS-6-CD-RhmB-CAT, via glutaraldehyde crosslinking, which was further characterized by FTIR and FL, and used as a H₂O₂ biosensor. The functional membrane was used to simultaneously oxidize and detect H₂O₂. The detection condition was optimized as pH 8, a reaction temperature of 25 °C, and an immobilized enzyme concentration of 2 × 10-4 mol/L. The fluorescence response of the biosensor exhibited a good linear relationship with the concentration of H₂O₂ in the range of 20 mΜ-300 μM and the detection limit of 10-8 mol/L.
Collapse
|
10
|
Construction and Characterization of a Chitosan-Immobilized-Enzyme and β-Cyclodextrin-Included-Ferrocene-Based Electrochemical Biosensor for H₂O₂ Detection. MATERIALS 2017; 10:ma10080868. [PMID: 28773229 PMCID: PMC5578234 DOI: 10.3390/ma10080868] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 07/18/2017] [Accepted: 07/25/2017] [Indexed: 12/13/2022]
Abstract
An electrochemical detection biosensor was prepared with the chitosan-immobilized-enzyme (CTS-CAT) and β-cyclodextrin-included-ferrocene (β-CD-FE) complex for the determination of H₂O₂. Ferrocene (FE) was included in β-cyclodextrin (β-CD) to increase its stability. The structure of the β-CD-FE was characterized. The inclusion amount, inclusion rate, and electrochemical properties of inclusion complexes were determined to optimize the reaction conditions for the inclusion. CTS-CAT was prepared by a step-by-step immobilization method, which overcame the disadvantages of the conventional preparation methods. The immobilization conditions were optimized to obtain the desired enzyme activity. CTS-CAT/β-CD-FE composite electrodes were prepared by compositing the CTS-CAT with the β-CD-FE complex on a glassy carbon electrode and used for the electrochemical detection of H₂O₂. It was found that the CTS-CAT could produce a strong reduction peak current in response to H₂O₂ and the β-CD-FE could amplify the current signal. The peak current exhibited a linear relationship with the H₂O₂ concentration in the range of 1.0 × 10-7-6.0 × 10-3 mol/L. Our work provided a novel method for the construction of electrochemical biosensors with a fast response, good stability, high sensitivity, and a wide linear response range based on the composite of chitosan and cyclodextrin.
Collapse
|
11
|
Molecular interactions, characterization and photoactivity of Chlorophyll a/chitosan/2-HP-β-cyclodextrin composite films as functional and active surfaces for ROS production. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.02.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
12
|
Cyclodextrin based ternary system of modafinil: Effect of trimethyl chitosan and polyvinylpyrrolidone as complexing agents. Int J Biol Macromol 2016; 84:182-8. [DOI: 10.1016/j.ijbiomac.2015.11.075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 11/18/2022]
|
13
|
Manasi, Rajesh V, Rajesh N. An indigenous Halomonas BVR1 strain immobilized in crosslinked chitosan for adsorption of lead and cadmium. Int J Biol Macromol 2015; 79:300-8. [DOI: 10.1016/j.ijbiomac.2015.04.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 04/23/2015] [Accepted: 04/27/2015] [Indexed: 12/01/2022]
|
14
|
Cheng Y, Cai H, Yin B, Yao P. Cholic acid modified N-(2-hydroxy)-propyl-3-trimethylammonium chitosan chloride for superoxide dismutase delivery. Int J Pharm 2013; 454:425-34. [DOI: 10.1016/j.ijpharm.2013.06.056] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 05/08/2013] [Accepted: 06/13/2013] [Indexed: 10/26/2022]
|
15
|
Chen H, Li M, Wan T, Zheng Q, Cheng M, Huang S, Wang Y. Design and synthesis of dual-ligand modified chitosan as a liver targeting vector. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:431-441. [PMID: 22105225 DOI: 10.1007/s10856-011-4494-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Accepted: 11/07/2011] [Indexed: 05/31/2023]
Abstract
Vector plays an important role in hepatic targeted drug delivery system. In this study, a novel material as a liver targeting vector, dual-ligand modified chitosan (GCGA) composed of chitosan (CTS), glycyrrhetinic acid (GA) and lactobionic acid (LA), was designed and synthesized by an orthogonal experiment with two-step synthesis under mild conditions. The synthesized final product was characterized and confirmed by FTIR and (1)H-NMR spectroscopy, and DS of GA and LA in CTS were measured to be 13.77 and 16.74 mol% using (1)H-NMR, respectively. The cytotoxicity of CTS and GCGA was concentration dependent which was inverse proportion to the cell viability by MTT assay using L929 cell line, and inhibitory concentration 50% (IC50) was 0.2 mg/ml for GCGA. The in vitro targeting efficiency and the in vitro cellular uptake were investigated. Compared with CTS NPs and GA-CTS NPs, GCGA NPs showed good cell specificity to BEL-7402 cells via the dual-ligand-receptor-mediated recognition, leading to a higher affinity to BEL-7402 cells. The results suggested that GCGA described here has the potential to be used as an effective vector for hepatic targeted drug therapy.
Collapse
Affiliation(s)
- Houxiang Chen
- Biomedical Materials and Engineering Center, Wuhan University of Technology, Wuhan, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|