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Tai W, Arnold JC, Chan HK, Kwok PCL. Spray freeze dried cannabidiol with dipalmitoylphosphatidylcholine (DPPC) for inhalation and solubility enhancement. Int J Pharm 2024; 659:124235. [PMID: 38762165 DOI: 10.1016/j.ijpharm.2024.124235] [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: 03/04/2024] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/20/2024]
Abstract
Pulmonary delivery is an efficient route of administration to deliver cannabidiol (CBD) due to the high bioavailability and fast onset of action. The major formulation challenge is the poor aqueous solubility of CBD. This study aimed to produce inhalable CBD powders with enhanced solubility and characterise their solid-state properties. CBD was spray freeze dried with mannitol or trehalose dihydrate with and without dipalmitoylphosphatidylcholine (DPPC). All four powders had acceptable yields at > 70 % with porous and spherical particles. The two crystalline mannitol powders contained less residual solvent than both amorphous trehalose ones. The addition of DPPC did not affect the crystallinity and residual solvent level of the powders. Instead, DPPC made the particles more porous, decreased the particle size from 19-23 µm to 11-13 µm, and increased CBD solubility from 0.36 µg/mL to over 2 µg/mL. The two DPPC powders were dispersed from a low resistance RS01 inhaler, showing acceptable aerosol performance with emitted fractions at 91-93 % and fine particle fractions < 5 µm at 34-43 %. These formulations can be used as a platform to deliver CBD and other cannabinoids by inhalation.
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Affiliation(s)
- Waiting Tai
- Advanced Drug Delivery Group, Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, NSW 2006, Australia
| | - Jonathon Carl Arnold
- Lambert Initiative for Cannabinoid Therapeutics, Brain and Mind Centre, The University of Sydney, NSW 2050, Australia; Discipline of Pharmacology, Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, NSW 2006, Australia
| | - Hak-Kim Chan
- Advanced Drug Delivery Group, Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, NSW 2006, Australia
| | - Philip Chi Lip Kwok
- Advanced Drug Delivery Group, Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, NSW 2006, Australia.
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2
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Alcantara KP, Malabanan JWT, Nalinratana N, Thitikornpong W, Rojsitthisak P, Rojsitthisak P. Cannabidiol-Loaded Solid Lipid Nanoparticles Ameliorate the Inhibition of Proinflammatory Cytokines and Free Radicals in an In Vitro Inflammation-Induced Cell Model. Int J Mol Sci 2024; 25:4744. [PMID: 38731964 PMCID: PMC11083812 DOI: 10.3390/ijms25094744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/16/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Cannabidiol (CBD) is a non-psychoactive compound derived from Cannabis sativa. It has demonstrated promising effects in combating inflammation and holds potential as a treatment for the progression of chronic inflammation. However, the clinical application of CBD is limited due to its poor solubility and bioavailability. This study introduces an effective method for preparing CBD-loaded solid lipid nanoparticles (CBD-SLNs) using a combination of low-energy hot homogenization and ultrasonication. We enhanced this process by employing statistical optimization with response surface methodology (RSM). The optimized CBD-SLN formulation utilizes glyceryl monostearate as the primary lipid component of the nanocarrier. The CBD-SLN formulation is screened as a potential tool for managing chronic inflammation. Stable, uniformly dispersed spherical nanoparticles with a size of 123 nm, a surface charge of -32.1 mV, an encapsulation efficiency of 95.16%, and a drug loading of 2.36% were obtained. The CBD-SLNs exhibited sustained release properties, ensuring prolonged and controlled CBD delivery, which could potentially amplify its therapeutic effects. Additionally, we observed that CBD-SLNs significantly reduced both reactive oxygen and nitrogen species and proinflammatory cytokines in chondrocyte and macrophage cell lines, with these inhibitory effects being more pronounced than those of free CBD. In conclusion, CBD-SLNs demonstrated superiority over free CBD, highlighting its potential as an effective delivery system for CBD.
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Affiliation(s)
- Khent Primo Alcantara
- Center of Excellence in Natural Products for Ageing and Chronic Diseases, Chulalongkorn University, Bangkok 10330, Thailand; (K.P.A.); (J.W.T.M.); (N.N.); (W.T.); (P.R.)
- Department of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - John Wilfred T. Malabanan
- Center of Excellence in Natural Products for Ageing and Chronic Diseases, Chulalongkorn University, Bangkok 10330, Thailand; (K.P.A.); (J.W.T.M.); (N.N.); (W.T.); (P.R.)
- Department of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nonthaneth Nalinratana
- Center of Excellence in Natural Products for Ageing and Chronic Diseases, Chulalongkorn University, Bangkok 10330, Thailand; (K.P.A.); (J.W.T.M.); (N.N.); (W.T.); (P.R.)
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Worathat Thitikornpong
- Center of Excellence in Natural Products for Ageing and Chronic Diseases, Chulalongkorn University, Bangkok 10330, Thailand; (K.P.A.); (J.W.T.M.); (N.N.); (W.T.); (P.R.)
- Department of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Pornchai Rojsitthisak
- Center of Excellence in Natural Products for Ageing and Chronic Diseases, Chulalongkorn University, Bangkok 10330, Thailand; (K.P.A.); (J.W.T.M.); (N.N.); (W.T.); (P.R.)
- Department of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Pranee Rojsitthisak
- Center of Excellence in Natural Products for Ageing and Chronic Diseases, Chulalongkorn University, Bangkok 10330, Thailand; (K.P.A.); (J.W.T.M.); (N.N.); (W.T.); (P.R.)
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok 10330, Thailand
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3
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Hossain KR, Alghalayini A, Valenzuela SM. Current Challenges and Opportunities for Improved Cannabidiol Solubility. Int J Mol Sci 2023; 24:14514. [PMID: 37833962 PMCID: PMC10572536 DOI: 10.3390/ijms241914514] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Cannabidiol (CBD), derived from the cannabis plant, has gained significant attention due to its potential therapeutic benefits. However, one of the challenges associated with CBD administration is its low bioavailability, which refers to the fraction of an administered dose that reaches systemic circulation. This limitation necessitates the exploration of various approaches to enhance the bioavailability of CBD, thus helping to maximize its therapeutic potential. A variety of approaches are now emerging, including nanoemulsion-based systems, lipid-based formulations, prodrugs, nanocarriers, and alternative routes of administration, which hold promise for improving the bioavailability of CBD and pave the way for novel formulations that maximize the therapeutic potential of CBD in various medical conditions. This opinion piece presents the current understanding surrounding CBD bioavailability and considers strategies aimed at improving both its absorption and its bioavailability.
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Affiliation(s)
- Khondker Rufaka Hossain
- School of Life Sciences, University of Technology Sydney, Sydney, NSW 2007, Australia; (K.R.H.); (A.A.)
| | - Amani Alghalayini
- School of Life Sciences, University of Technology Sydney, Sydney, NSW 2007, Australia; (K.R.H.); (A.A.)
- ARC Research Hub for Integrated Device for End-User Analysis at Low-Levels (IDEAL), Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Stella M. Valenzuela
- School of Life Sciences, University of Technology Sydney, Sydney, NSW 2007, Australia; (K.R.H.); (A.A.)
- ARC Research Hub for Integrated Device for End-User Analysis at Low-Levels (IDEAL), Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
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Liu Y, Sprando RL. Physiologically based pharmacokinetic modeling and simulation of cannabinoids in human plasma and tissues. J Appl Toxicol 2023; 43:589-598. [PMID: 36272108 DOI: 10.1002/jat.4409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 10/06/2022] [Accepted: 10/20/2022] [Indexed: 11/11/2022]
Abstract
There has been an increased public interest in developing consumer products containing nonintoxicating cannabinoids, such as cannabidiol (CBD) and cannabigerol (CBG). At the present time, there is limited information available on the pharmacokinetics of cannabinoids in humans. Since pharmacokinetic profiles are important in understanding the pharmacological and toxicological effects at the target sites, physiologically based pharmacokinetic (PBPK) modeling was used to predict the plasma and tissue concentrations of 17 cannabinoids in humans. PBPK models were established using measured (in vitro) and predicted (in silico) physicochemical and pharmacokinetic properties, such as water solubility and effective human jejunal permeability. Initially, PBPK models were established for CBD and the model performance was evaluated using reported clinical data after intravenous and oral administration. PBPK models were then developed for 16 additional cannabinoids including CBG, and the plasma and tissue concentrations were predicted after 30 mg oral administration. The pharmacokinetic profiles of the 16 cannabinoids were similar to CBD, and the plasma concentration and time profiles of CBD agreed well with clinical data in the literature. Although low exposure was predicted in the plasma (maximum plasma concentrations < 15 nM), the predicted tissue concentrations, especially the liver (maximum liver concentrations 70-183 nM), were higher after oral administration of 30 mg cannabinoids. These predicted plasma and tissue concentrations could be used to guide further in vitro and in vivo testing.
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Affiliation(s)
- Yitong Liu
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, Maryland, USA
| | - Robert L Sprando
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, Maryland, USA
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ElSohly MA, Shahzadi I, Gul W. Absorption and Bioavailability of Novel UltraShear Nanoemulsion of Cannabidiol in Rats. Med Cannabis Cannabinoids 2023; 6:148-159. [PMID: 37942295 PMCID: PMC10629855 DOI: 10.1159/000534473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/02/2023] [Indexed: 11/10/2023] Open
Abstract
Introduction Cannabidiol (CBD) has several potential benefits and therapeutic uses, especially in pain, inflammation, and anxiety. CBD has high hydrophobicity and very low solubility in water. CBD has also shown exceptionally low oral-gastrointestinal (oral-GI) bioavailability. In this study, we aimed to examine the oral gastrointestinal absorption and subsequent bioavailability of CBD in a nanoemulsion formulation prepared by Pressure BioSciences' UltraShearTM technology. Methods CBD nanoemulsion (2%) was provided by Pressure BioSciences, Inc. (South Easton, MA), and CBD pharmacokinetic parameters were evaluated in male Sprague-Dawley rats using LC-MS/MS technology. Results Bioavailability of orally delivered CBD UltraShear nanoemulsion was calculated to be 18.6% at 6 h and 25.4% at 24 h. While oral-GI bioavailability is unsurprisingly limited by first-pass metabolism, it is nonetheless notable that CBD bioavailability for oral-GI UltraShear nanoemulsion CBD is roughly 3-4x higher than the typical bioavailability for oral-GI CBD delivered in oil solution or conventional edible formats. Conclusion This study has provided a compelling demonstration of unprecedented speed and efficiency of oral-GI CBD absorption of CBD UltraShear nanoemulsions, achieving 10% of levels achieved for direct IV injection within 30 min and 80% of IV levels in 24 h. Notably, within just the first hour post-administration, the bioavailability of oral CBD from UltraShear nanoemulsion formulation exceeded the typical 6% total CBD oral bioavailability benchmarks reported for CBD edibles and ultimately achieved 3-4X these levels within 6-24 h.
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Affiliation(s)
| | | | - Waseem Gul
- ElSohly Laboratories, Inc., Oxford, MS, USA
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Functional supramolecular micelles driven by the amphiphilic complex of biotin-acyclic cucurbituril and cannabidiol for cell-targeted drug delivery. Int J Pharm 2022; 625:122048. [PMID: 35902054 DOI: 10.1016/j.ijpharm.2022.122048] [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: 04/20/2022] [Revised: 07/03/2022] [Accepted: 07/20/2022] [Indexed: 11/21/2022]
Abstract
Precise delivery of hydrophobic drugs has always been a great challenge for drug delivery systems. To overcome this problem, we designed and synthesized a novel supramolecular host biotin-acyclic cucurbituril (ACBB) at the first time, and we have developed a host-guest amphiphilic complex based on ACBB and amantadine-conjugated cannabinoids (AD-CBD) that self-assembles to form functionalized supramolecular micelles (FSMs) for cell-targeted drug delivery. The 1:1 stoichiometric ratio of the amphiphilic complex and its possible host-guest inclusion behaviors are obtained by fluorescence titration, nuclear magnetic resonance (NMR), Fourier transform-infrared spectroscopy (FT-IR) and thermal analysis (TGA and DSC). Using transmission electron microscope (TEM) and dynamic light scattering (DLS), we have observed that the shape of FSMs was spherical and size was 137-192 nm. In addition, MTT test results show that FSMs have good antitumor activity, taking MCF-7 as an example, the in vitro half-maximal inhibitory concentration (IC50) values of FSMs were 1.53 μM and 5.02 μM, which were better than 30.83 μM of cisplatin. Confocal laser scanning microscopy (CLSM) results showed that FSMs loaded with Rhodamine B can specifically aggregate on the surface of tumor cells and the targeting ability has been directly verified. Flow cytometry results showed that FSMs could promote tumor cell apoptosis. All results indicated that FSMs had high bioavailability, stability, accurate targeting and excellent delivery efficiency, which had great application potential in the field of drug delivery.
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Hatziagapiou K, Bethanis K, Koniari E, Christoforides E, Nikola O, Andreou A, Mantzou A, Chrousos GP, Kanaka-Gantenbein C, Lambrou GI. Biophysical Studies and In Vitro Effects of Tumor Cell Lines of Cannabidiol and Its Cyclodextrin Inclusion Complexes. Pharmaceutics 2022; 14:pharmaceutics14040706. [PMID: 35456540 PMCID: PMC9027293 DOI: 10.3390/pharmaceutics14040706] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/16/2022] [Accepted: 03/19/2022] [Indexed: 02/06/2023] Open
Abstract
Phytocannabinoids possess anticancer properties, as established in vitro and in vivo. However, they are characterized by high lipophilicity. To improve the properties of cannabidiol (CBD), such as solubility, stability, and bioavailability, CBD inclusion complexes with cyclodextrins (CDs) might be employed, offering targeted, faster, and prolonged CBD release. The aim of the present study is to investigate the in vitro effects of CBD and its inclusion complexes in randomly methylated β-CD (RM-β-CD) and 2-hyroxypropyl-β-CD (HP-β-CD). The enhanced solubility of CBD upon complexation with CDs was examined by phase solubility study, and the structure of the inclusion complexes of CBD in 2,6-di-O-methyl-β-CD (DM-β-CD) and 2,3,6-tri-O-methyl-β-CD (TM-β-CD) was determined by X-ray crystallography. The structural investigation was complemented by molecular dynamics simulations. The cytotoxicity of CBD and its complexes with RM-β-CD and HP-β-CD was tested on two cell lines, the A172 glioblastoma and TE671 rhabdomyosarcoma cell lines. Methylated β-CDs exhibited the best inclusion ability for CBD. A dose-dependent effect of CBD on both cancer cell lines and improved efficacy of the CBD–CDs complexes were verified. Thus, cannabinoids may be considered in future clinical trials beyond their palliative use as possible inhibitors of cancer growth.
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Affiliation(s)
- Kyriaki Hatziagapiou
- Choremeio Research Laboratory, First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece; (K.H.); (O.N.); (A.M.); (C.K.-G.)
- Division of Endocrinology, First Department of Pediatrics, Metabolism, and Diabetes, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece
- Physiotherapy Department, Faculty of Health and Care Sciences, State University of West Attica, Agiou Spiridonos 28, 12243 Athens, Greece
| | - Kostas Bethanis
- Physics Laboratory, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece;
- Correspondence: (K.B.); (G.I.L.)
| | - Eleni Koniari
- UNESCO Chair on Adolescent Health Care, “Aghia Sophia” Children’s Hospital, University Research Institute of Maternal and Child Health & Precision Medicine, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece; (E.K.); (G.P.C.)
| | - Elias Christoforides
- Physics Laboratory, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece;
| | - Olti Nikola
- Choremeio Research Laboratory, First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece; (K.H.); (O.N.); (A.M.); (C.K.-G.)
| | - Athena Andreou
- Genetics Laboratory, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece;
| | - Aimilia Mantzou
- Choremeio Research Laboratory, First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece; (K.H.); (O.N.); (A.M.); (C.K.-G.)
- Division of Endocrinology, First Department of Pediatrics, Metabolism, and Diabetes, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece
| | - George P. Chrousos
- UNESCO Chair on Adolescent Health Care, “Aghia Sophia” Children’s Hospital, University Research Institute of Maternal and Child Health & Precision Medicine, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece; (E.K.); (G.P.C.)
| | - Christina Kanaka-Gantenbein
- Choremeio Research Laboratory, First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece; (K.H.); (O.N.); (A.M.); (C.K.-G.)
- Division of Endocrinology, First Department of Pediatrics, Metabolism, and Diabetes, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece
| | - George I. Lambrou
- Choremeio Research Laboratory, First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias 8, 11527 Athens, Greece; (K.H.); (O.N.); (A.M.); (C.K.-G.)
- Correspondence: (K.B.); (G.I.L.)
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Li H, Zhao Q, Wang L, Wang P, Zhao B. Cannabidiol/hydroxypropyl-β-cyclodextrin inclusion complex: structure analysis, release behavior, permeability, and bioactivity under in vitro digestion. NEW J CHEM 2022. [DOI: 10.1039/d1nj05998j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The inclusion complex of CBD greatly improved its release performance and bioactivity.
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Affiliation(s)
- Hang Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qingsheng Zhao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liwei Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Peidong Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bing Zhao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
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