1
|
Zheng G, Cui Y, Jiang Z, Zhou M, Yu Y, Wang P, Wang Q. Fiber-based photothermal, UV-resistant, and self-cleaning coatings fabricated by silicon grafted copolymers of chitosan derivatives and gallic acid. Int J Biol Macromol 2022; 222:1560-1577. [PMID: 36195235 DOI: 10.1016/j.ijbiomac.2022.09.230] [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: 07/22/2022] [Revised: 09/22/2022] [Accepted: 09/25/2022] [Indexed: 11/25/2022]
Abstract
Superhydrophobic and hydrophobic properties are generally created by adopting low surface free energy materials. Therefore, most studies have focused on creating surface hydrophobicity by using hydrophobic or fluorinated materials. However, few studies are reported on realizing surface hydrophobicity by directly introducing hydrophilic molecules, which is also a challenge. Herein, with platinum nanozyme as the catalyst, the novel hydrophobic coatings have been rapidly gained via anchoring the polymer of hydrophilic gallic acid and chitosan or chitosan quaternary ammonium salt onto cotton fabric surface. Notably, the novel hydrophobic coatings exhibit significant advances compared with conventional hydrophobic ones created by utilizing fluorinated or hydrophobic materials, which breaks the limitation of employing low surface energy materials for gaining surface hydrophobicity. Subsequently, the sodium methyl silicate was grafted on the polymer's coatings to strengthen surface hydrophobicity and the abrasion resistance of hydrophobicity. Interestingly, the heating could induce the hydrophilicity of cotton fabric to recover to hydrophobicity. Moreover, the hydrophobic coatings also possess good photothermal conversion, UV resistance, and anti-oxidation activity for self-cleaning application and oil water separation. Briefly, the present work may open a new direction for preparing novel hydrophobic coatings by combining gallic acid and chitosan-based macromolecular carbohydrates.
Collapse
Affiliation(s)
- Guolin Zheng
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, PR China
| | - Yifan Cui
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, PR China
| | - Zhe Jiang
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, PR China
| | - Man Zhou
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, PR China
| | - Yuanyuan Yu
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, PR China
| | - Ping Wang
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, PR China
| | - Qiang Wang
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, PR China.
| |
Collapse
|
2
|
Lin CR, Ivanova OS, Edelman IS, Knyazev YV, Zharkov SM, Petrov DA, Sokolov AE, Svetlitsky ES, Velikanov DA, Solovyov LA, Chen YZ, Tseng YT. Carbon Double Coated Fe3O4@C@C Nanoparticles: Morphology Features, Magnetic Properties, Dye Adsorption. NANOMATERIALS 2022; 12:nano12030376. [PMID: 35159723 PMCID: PMC8839792 DOI: 10.3390/nano12030376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/19/2022] [Accepted: 01/21/2022] [Indexed: 02/08/2023]
Abstract
This work is devoted to the study of magnetic Fe3O4 nanoparticles doubly coated with carbon. First, Fe3O4@C nanoparticles were synthesized by thermal decomposition. Then these synthesized nanoparticles, 20–30 nm in size were processed in a solution of glucose at 200 °C during 12 h. The morphology and features of the magnetic properties of the obtained hybrid nanoparticles were characterized by transmission electron microscopy, differential thermo-gravimetric analysis, vibrating sample magnetometer, magnetic circular dichroism and Mössbauer spectroscopy. It was shown that the magnetic core of Fe3O4@C nanoparticles was nano-crystalline, corresponding to the Fe3O4 phase. The Fe3O4@C@C nanoparticles presumably contain Fe3O4 phase (80%) with admixture of maghemite (20%), the thickness of the carbon shell in the first case was of about 2–4 nm. The formation of very large nanoparticle conglomerates with a linear size up to 300 nm and of the same regular shape is a remarkable peculiarity of the Fe3O4@C@C nanoparticles. Adsorption of organic dyes from water by the studied nanoparticles was also studied. The best candidates for the removal of dyes were Fe3O4@C@C nanoparticles. The kinetic data showed that the adsorption processes were associated with the pseudo-second order mechanism for cationic dye methylene blue (MB) and anionic dye Congo red (CR). The equilibrium data were more consistent with the Langmuir isotherm and were perfectly described by the Langmuir–Freundlich model.
Collapse
Affiliation(s)
- Chun-Rong Lin
- Department of Applied Physics, National Pingtung University, Pingtung City 90003, Taiwan; (Y.-Z.C.); (Y.-T.T.)
- Correspondence: (C.-R.L.); (O.S.I.)
| | - Oxana S. Ivanova
- Kirensky Institute of Physics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia; (I.S.E.); (Y.V.K.); (S.M.Z.); (D.A.P.); (A.E.S.); (E.S.S.); (D.A.V.)
- Institute of Engineering Physics and Radioelectronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
- Correspondence: (C.-R.L.); (O.S.I.)
| | - Irina S. Edelman
- Kirensky Institute of Physics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia; (I.S.E.); (Y.V.K.); (S.M.Z.); (D.A.P.); (A.E.S.); (E.S.S.); (D.A.V.)
| | - Yuriy V. Knyazev
- Kirensky Institute of Physics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia; (I.S.E.); (Y.V.K.); (S.M.Z.); (D.A.P.); (A.E.S.); (E.S.S.); (D.A.V.)
- Institute of Engineering Physics and Radioelectronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Sergey M. Zharkov
- Kirensky Institute of Physics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia; (I.S.E.); (Y.V.K.); (S.M.Z.); (D.A.P.); (A.E.S.); (E.S.S.); (D.A.V.)
- Institute of Engineering Physics and Radioelectronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Dmitry A. Petrov
- Kirensky Institute of Physics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia; (I.S.E.); (Y.V.K.); (S.M.Z.); (D.A.P.); (A.E.S.); (E.S.S.); (D.A.V.)
| | - Alexey E. Sokolov
- Kirensky Institute of Physics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia; (I.S.E.); (Y.V.K.); (S.M.Z.); (D.A.P.); (A.E.S.); (E.S.S.); (D.A.V.)
- Institute of Engineering Physics and Radioelectronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Eugeniy S. Svetlitsky
- Kirensky Institute of Physics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia; (I.S.E.); (Y.V.K.); (S.M.Z.); (D.A.P.); (A.E.S.); (E.S.S.); (D.A.V.)
| | - Dmitry A. Velikanov
- Kirensky Institute of Physics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia; (I.S.E.); (Y.V.K.); (S.M.Z.); (D.A.P.); (A.E.S.); (E.S.S.); (D.A.V.)
| | - Leonid A. Solovyov
- Institute of Chemistry and Chemical Technology, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia;
| | - Ying-Zhen Chen
- Department of Applied Physics, National Pingtung University, Pingtung City 90003, Taiwan; (Y.-Z.C.); (Y.-T.T.)
| | - Yaw-Teng Tseng
- Department of Applied Physics, National Pingtung University, Pingtung City 90003, Taiwan; (Y.-Z.C.); (Y.-T.T.)
| |
Collapse
|
3
|
Organic dyes (acid red, fluorescein, methylene blue) and copper(II) adsorption on amino silica spherical particles with tailored surface hydrophobicity and porosity. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116301] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
4
|
Rezazadeh M, Akbari V, Varshosaz J, Karbasizadeh P, Minaiyan M. Sustained-release of erythropoietin using a novel injectable thermosensitive hydrogel: in vitro studies, biological activity, and efficacy in rats. Pharm Dev Technol 2021; 26:412-421. [PMID: 33538616 DOI: 10.1080/10837450.2021.1883059] [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] [Indexed: 10/22/2022]
Abstract
In the current study erythropoietin (EPO) loaded trimethyl chitosan/tripolyphosphate nanoparticles-embedded in a thermosensitive hydrogel was prepared. The influence of the main experimental factors on the properties of EPO-loaded nanoparticles were evaluated using a two-factors central composite design and the optimized formulation was then freeze dried. Sodium dodecyl sulfate-page and circular dichroismspectroscopy were used to confirm the structural stability of EPO following encapsulation and freeze drying. Rheological properties, and the release rate of EPO from the hydrogel were examined. Mean particle size, zeta potential, and entrapment efficiency of the optimized EPO-loaded nanoparticles were confirmed 151.5 ± 16 nm, 11.5 ± 1.8 mV, and 78.5 ± 5.9%, respectively. The hydrogel containing nanoparticles existed as a solution at room temperature converted to a semisolid upon increasing the temperature to 35 ± 1.2 °C and demonstrated controlled release of EPO for more than 10 days. The stability of EPO in the hydrogel system was further investigated using in vivo biological activity assay and the result revealed relative potency of 0.85 as calibrated with standard EPO. Finally, a single injection of the EPO-loaded nanoparticles-embedded in the hydrogel administered to Sprague-Dawley rats resulted in elevated reticulocytes for about 20 days compared to control group received blank hydrogel.
Collapse
Affiliation(s)
- Mahboubeh Rezazadeh
- Department of Pharmaceutics, Novel Drug Delivery System Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
| | - Vajihe Akbari
- Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
| | - Jaleh Varshosaz
- Department of Pharmaceutics, Novel Drug Delivery System Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
| | - Parisa Karbasizadeh
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
| | - Mohsen Minaiyan
- Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
| |
Collapse
|
5
|
Slyusarenko N, Gerasimova M, Atamanova M, Plotnikov A, Slyusareva E. Adsorption of eosin Y on polyelectrolyte complexes based on chitosan and arabinogalactan sulfate. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125731] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
6
|
Slyusarenko NV, Vasilyeva NY, Kazachenko AS, Gerasimova MA, Romanchenko AS, Slyusareva EA. Synthesis and Properties of Interpolymer Complexes Based on Chitosan and Sulfated Arabinogalactan. POLYMER SCIENCE SERIES B 2020. [DOI: 10.1134/s1560090420020050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
7
|
Mchedlov-Petrossyan NO, Cheipesh TA, Shekhovtsov SV, Ushakova EV, Roshal AD, Omelchenko IV. Aminofluoresceins Versus Fluorescein: Ascertained New Unusual Features of Tautomerism and Dissociation of Hydroxyxanthene Dyes in Solution. J Phys Chem A 2019; 123:8845-8859. [PMID: 31539249 DOI: 10.1021/acs.jpca.9b05810] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Within the course of this spectroscopic research, we revealed novel features of the protolytic behavior, which extend the knowledge of the chemistry of xanthene dyes and rationalize the utilization of these compounds. In addition to the well-known tautomerism of the molecular form, H2R, of fluorescein dyes, new aspects of tautomeric transformation of anions are disclosed. First, for the dyes bearing the substituents in the phthalic acid residue, 4'- and 5'-aminofluoresceins and 4'-fluorescein isothiocyanate, the monoanion HR- exists in non-hydrogen-bond donor solvents not only as a tautomer with the ionized carboxylic and nonionized OH group but also as a "phenolate" ion with a nonionized COOH group. Such state of HR- ions is typical for dyes bearing halogen atoms or NO2 groups in the xanthene moiety but was not observed until now in the case of substitution in the phthalic residue. Second, the possibility of the existence of the HR- species in DMSO in the form of colorless lactone is deduced for the 5'-aminofluorescein using the visible and infrared spectra. This results in a dramatic difference in medium effects. For instance, whereas for fluorescein in DMSO, the inversion of the stepwise ionization constants takes place and the Ka1/Ka2 value equals 0.08, the same ratio for 5'-aminofluorescein is as high as ∼800. In addition, the pKa values of sulfonefluorescein, erythrosin, methyl ether of fluorescein, and phenol red were obtained to verify the acidity scale in DMSO and to support the detailed scheme of protolytic equilibria of fluorescein dyes.
Collapse
Affiliation(s)
| | - Tatyana A Cheipesh
- Department of Physical Chemistry , V. N. Karazin Kharkov National University , Kharkov 61022 , Ukraine
| | - Sergey V Shekhovtsov
- Department of Physical Chemistry , V. N. Karazin Kharkov National University , Kharkov 61022 , Ukraine
| | - Elena V Ushakova
- Department of Physical Chemistry , V. N. Karazin Kharkov National University , Kharkov 61022 , Ukraine
| | - Alexander D Roshal
- Department of Physical Chemistry , V. N. Karazin Kharkov National University , Kharkov 61022 , Ukraine
| | - Iryna V Omelchenko
- Institute for Single Crystals (SSI) , 60 Nauka Avenue , Kharkov 61001 , Ukraine
| |
Collapse
|
8
|
Slyusarenko N, Gerasimova M, Plotnikov A, Gaponik N, Slyusareva E. Photoluminescence properties of self-assembled chitosan-based composites containing semiconductor nanocrystals. Phys Chem Chem Phys 2019; 21:4831-4838. [PMID: 30775747 DOI: 10.1039/c8cp07051b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The photoluminescence (PL) properties of composites obtained by embedding green-emitting semiconductor nanocrystals (NCs) of two different types (thiol-capped CdTe and CdSe/ZnS) into chitosan-based biopolymer particles were investigated. The synthesis of self-assembled particles from oppositely charged polysaccharides involved a preliminary electrostatic binding of positively charged chitosan chains by negatively charged functional groups of NC stabilizing ligands. The amount of NCs and the acidity of the solution were found to be important parameters influencing the PL. The PL properties were mainly discussed in terms of the colloidal stability of the particles and changes in energy gap of NCs. Generally, the obtained biocompatible composites with NCs randomly distributed within a biopolymer particle demonstrated a higher PL resistance to the solution acidity that expands the applicability range of thiol-capped NCs.
Collapse
Affiliation(s)
- Nina Slyusarenko
- Siberian Federal University, Svobodny Prospect 79, 660041 Krasnoyarsk, Russia.
| | | | | | | | | |
Collapse
|
9
|
de Lima C, Gomes D, de Morais Filho J, Pereira M, Fonseca J. Anionic and cationic drug sorption on interpolyelectrolyte complexes. Colloids Surf B Biointerfaces 2018; 170:210-218. [DOI: 10.1016/j.colsurfb.2018.05.071] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 05/29/2018] [Accepted: 05/31/2018] [Indexed: 01/17/2023]
|
10
|
Rezazadeh M, Parandeh M, Akbari V, Ebrahimi Z, Taheri A. Incorporation of rosuvastatin-loaded chitosan/chondroitin sulfate nanoparticles into a thermosensitive hydrogel for bone tissue engineering: preparation, characterization, and cellular behavior. Pharm Dev Technol 2018; 24:357-367. [DOI: 10.1080/10837450.2018.1484765] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Mahboubeh Rezazadeh
- Department of Pharmaceutics and Novel Drug Delivery System Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Parandeh
- Department of Pharmaceutics and Novel Drug Delivery System Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Vajihe Akbari
- Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Ebrahimi
- Department of Pharmaceutics and Novel Drug Delivery System Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Azade Taheri
- Department of Pharmaceutics and Novel Drug Delivery System Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
11
|
Silva PMO, Francisco JE, Cajé JCM, Cassella RJ, Pacheco WF. A batch and fixed bed column study for fluorescein removal using chitosan modified by epichlorohydrin. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 53:55-64. [PMID: 28961068 DOI: 10.1080/10934529.2017.1368301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study evaluates the feasibility of commercial chitosan (CQ) and modified chitosan (MQ) by epichlorohydrin to be used as a solid phase to remove fluorescein (FSC) from aqueous solutions by two different approaches: in batch and on a fixed column bed. For the batch study, all parameters that influence sorption capacity were evaluated, such as: pH, mass, ionic strength, temperature and time of contact. In the optimized condition, 75% removal was obtained for FSC using CQ, while the modification allowed an increase up to 99%, as well as an increase in the stability of the polymer. In the fixed column bed study, the influence of all the parameters was evaluated through breakthrough curves, and the thermodynamics parameters of each approach were obtained. The results of these studies demonstrate that the modification with epichlorohydrin enhanced the sorptive properties (from 35% to 95% in fixed bed experiments) and the polymer stability (making it insoluble), making it suitable to be used in wastewater treatment.
Collapse
Affiliation(s)
- P M O Silva
- a Analytical Chemistry Department, Chemistry Institute , UFF - Federal Fluminense University , Niterói-RJ , Brazil
| | - J E Francisco
- a Analytical Chemistry Department, Chemistry Institute , UFF - Federal Fluminense University , Niterói-RJ , Brazil
| | - J C M Cajé
- a Analytical Chemistry Department, Chemistry Institute , UFF - Federal Fluminense University , Niterói-RJ , Brazil
| | - R J Cassella
- a Analytical Chemistry Department, Chemistry Institute , UFF - Federal Fluminense University , Niterói-RJ , Brazil
| | - W F Pacheco
- a Analytical Chemistry Department, Chemistry Institute , UFF - Federal Fluminense University , Niterói-RJ , Brazil
| |
Collapse
|
12
|
Xie TX, Chu FH, Yan WQ, Xu B, Chen J, Zhao R, Zhang YZ, Wang PL, Lei HM. Synthesis and biological evaluation of new peroxo-bridged diosgenin derivatives. CHINESE HERBAL MEDICINES 2018. [DOI: 10.1016/j.chmed.2017.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
|
13
|
|
14
|
Jia M, Zhao R, Xu B, Yan W, Chu F, Gu H, Xie T, Xiang H, Ren J, Chen D, Wang P, Lei H. Synthesis and biological activity evaluation of novel peroxo-bridged derivatives as potential anti-hepatitis B virus agents. MEDCHEMCOMM 2017; 8:148-151. [PMID: 30108700 DOI: 10.1039/c6md00344c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 10/08/2016] [Indexed: 01/09/2023]
Abstract
Previous studies have demonstrated that natural steroid compounds containing a peroxide bridge exhibited potential anti-hepatitis B virus activity. To continue our research, a simple and regioselective methodology, using Eosin Y as a clean photosensitized oxidation catalyst, was developed for the synthesis of a peroxide bridge in steroids. The method that using Eosin Y as the catalyst was exposed to visible light and furbished in high yields, did not involve tedious work-up or purification, and avoided using environmentally hazardous solvents. It can be regarded as a green protocol. Moreover, a series of cholesterol and β-sitosterol derivatives containing a peroxide bridge were synthesized using this method and screened for their anti-HBV activity. Among the compounds synthesized in this research, 5α,8α-cyclicobioxygen-6-vinyl-3-oxo-cholesterone (1f, 3.13 μg ml-1) had the most potent activity with inhibition rates of 77.45% ± 6.01% and 58.73% ± 8.64% on the secretion of HBsAg and HBeAg antigens, respectively, after 8 days. Further acute toxicity test showed that the LD50 value of compound 1f was 362.46 mg kg-1 after an intraperitoneal injection in mice. Moreover, structure-activity relationships of cholesterol and β-sitosterol derivatives were briefly discussed.
Collapse
Affiliation(s)
- Menglu Jia
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Rui Zhao
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Bing Xu
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Wenqiang Yan
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Fuhao Chu
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Hongshun Gu
- Department of Pharmacology , Xuanwu Hospital of Capital Medical University , Key Laboratory for Neurodegenerative Diseases of Ministry of Education , Beijing 100053 , China
| | - Tianxin Xie
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Hongjun Xiang
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Jian Ren
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Dagang Chen
- Beijing lam ze biological technology co, LTD , 102500 , China
| | - Penglong Wang
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Haimin Lei
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| |
Collapse
|
15
|
Yan W, Zhang C, Li B, Xu X, Liang M, Gu S, Chu F, Xu B, Ren J, Wang P, Lei H. A Series of Oleanolic Acid Derivatives as Anti-Hepatitis B Virus Agents: Design, Synthesis, and in Vitro and in Vivo Biological Evaluation. Molecules 2016; 21:402. [PMID: 27023498 PMCID: PMC6273212 DOI: 10.3390/molecules21040402] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/16/2016] [Accepted: 03/21/2016] [Indexed: 02/06/2023] Open
Abstract
A series of oleanolic acid derivatives were synthesized by diverse reactions, including the introduction of conjugated alkadiene and epoxy ring moieties formed by means of photosensitized oxidation. Eosin Y was used as photosensitizer during this process. Next the cytotoxicity of the products was evaluated on HepG2.2.15 cells to determine the appropriate treatment concentration for the subsequent experiments. Most of the OA derivatives exhibited anti-HBV antigens secretion activity in HepG2.2.15 cells. Among the tested compounds, OA-4 (3.13 µg/mL) showed significant activity against the secretion of HBsAg, HBeAg, and HBV DNA replication with inhibitory ratios of 90.52% ± 1.78%, 31.55% ± 3.65%, and 94.57% ± 3.11% after 6 days, respectively. Besides, OA-4 was further investigated in a duck model with DHBV infection. When OA-4 was administered at a dosage of 500 mg/kg, the results revealed a significant inhibitory effects of DHBV at 19.94% ± 2.87%, 28.80% ± 3.62% and 29.25% ± 2.65% at days 5, 10, and 3 after the cessation of OA-4 treatment, respectively. It's worth noting that OA-4 is superior to lamivudine in the inhibition of rebound of viral replication rate. The structure-activity relationships of OA derivatives had been preliminary discussed, which should be useful to explore further novel anti-HBV agents.
Collapse
Affiliation(s)
- Wenqiang Yan
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Chenze Zhang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Bi Li
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Xin Xu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Miao Liang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Shun Gu
- Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China.
| | - Fuhao Chu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Bing Xu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Jian Ren
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Penglong Wang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Haimin Lei
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
| |
Collapse
|
16
|
Slyusareva E, Gerasimova M, Slabko V, Abuzova N, Plotnikov A, Eychmüller A. Synthesis and Characterization of Chitosan-Based Polyelectrolyte Complexes Doped with Xanthene Dyes. Chemphyschem 2015; 16:3997-4003. [DOI: 10.1002/cphc.201500634] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Evgenia Slyusareva
- Siberian Federal University; Svobodny Prospect 79 660041 Krasnoyarsk Russia
| | - Marina Gerasimova
- Siberian Federal University; Svobodny Prospect 79 660041 Krasnoyarsk Russia
| | - Vitaliy Slabko
- Siberian Federal University; Svobodny Prospect 79 660041 Krasnoyarsk Russia
| | - Nina Abuzova
- Siberian Federal University; Svobodny Prospect 79 660041 Krasnoyarsk Russia
| | - Alexei Plotnikov
- Technische Universität Dresden; Bergstraße 66b 01062 Dresden Germany
| | | |
Collapse
|
17
|
Jardim KV, Joanitti GA, Azevedo RB, Parize AL. Physico-chemical characterization and cytotoxicity evaluation of curcumin loaded in chitosan/chondroitin sulfate nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 56:294-304. [PMID: 26249593 DOI: 10.1016/j.msec.2015.06.036] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 05/16/2015] [Accepted: 06/16/2015] [Indexed: 11/18/2022]
Abstract
In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L(-1) free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively.
Collapse
Affiliation(s)
- Katiúscia Vieira Jardim
- Universidade de Brasília (UnB) - Campus Planaltina (FUP) - Área Universitária n°01, Vila N. Sa. De Fátima, CEP: 73345-010 - Planaltina, Brasília, DF, Brazil
| | - Graziella Anselmo Joanitti
- Universidade de Brasília (UnB) - Campus Ceilândia (FCE) - Centro Metropolitano - Conjunto A - Lote 01, CEP: 72220-900 - Ceilândia, Brasília, DF, Brazil
| | - Ricardo Bentes Azevedo
- Laboratório de Nanobiotecnologia - Instituto de Ciências Biológicas - Universidade de Brasília - UnB - Campus Universitário Darcy Ribeiro - CEP 70910-900 - Asa Norte, Brasília, DF, Brazil
| | - Alexandre Luis Parize
- Universidade de Brasília (UnB) - Campus Planaltina (FUP) - Área Universitária n°01, Vila N. Sa. De Fátima, CEP: 73345-010 - Planaltina, Brasília, DF, Brazil; Departamento de Química - Universidade Federal de Santa Catarina - CEP: 88040-900 - Trindade, Florianópolis, SC, Brazil.
| |
Collapse
|