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Elbanna SA, Ebada HMK, Abdallah OY, Essawy MM, Abdelhamid HM, Barakat HS. Novel tetrahydrocurcumin integrated mucoadhesive nanocomposite κ-carrageenan/xanthan gum sponges: a strategy for effective local treatment of oral cancerous and precancerous lesions. Drug Deliv 2023; 30:2254530. [PMID: 37668361 PMCID: PMC10481765 DOI: 10.1080/10717544.2023.2254530] [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: 02/28/2023] [Revised: 07/27/2023] [Accepted: 08/26/2023] [Indexed: 09/06/2023] Open
Abstract
Oral cancer is one of the leading causes of death worldwide. Oral precancerous lesions (OPL) are the precursors of oral cancer, with varying degrees of progression. Tetrahydrocurcumin (THC) is a major metabolite of curcumin with superior anticancer properties against various types of cancer. However, THC's clinical outcome is limited by its poor aqueous solubility. Herein, we developed novel mucoadhesive biopolymer-based composite sponges for buccal delivery of THC, exploiting nanotechnology and mucoadhesion for efficient prevention and treatment of oral cancer. Firstly, THC-nanocrystals (THC-NC) were formulated and characterized for subsequent loading into mucoadhesive composite sponges. The anticancer activity of THC-NC was assessed on a human tongue squamous carcinoma cell line (SCC-4). Finally, the chemopreventive activity of THC-NC loaded sponges (THC-NC-S) was examined in DMBA-induced hamster OPL. The selected THC-NC exhibited a particle size of 532.68 ± 13.20 nm and a zeta potential of -46.08 ± 1.12 mV. Moreover, THC-NC enhanced the anticancer effect against SCC-4 with an IC50 value of 80 µg/mL. THC-NC-S exhibited good mucoadhesion properties (0.24 ± 0.02 N) with sustained drug release, where 90% of THC was released over 4 days. Furthermore, THC-NC-S had a magnificent potential for maintaining high chemopreventive activity, as demonstrated by significant regression in the dysplasia degree and a decline in cyclin D1 (control: 40.4 ± 12.5, THC-NC-S: 12.07 ± 5.2), culminating in significant amelioration after 25 days of treatment. Conclusively, novel THC-NC-S represent a promising platform for local therapy of OPL, preventing their malignant transformation into cancer.
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Affiliation(s)
- Shimaa A. Elbanna
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Heba M. K. Ebada
- Central Lab, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt
| | - Ossama Y. Abdallah
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Marwa M. Essawy
- Department of Oral Pathology, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
- Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Hend M. Abdelhamid
- Department of Oral Pathology, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
- Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Hebatallah S. Barakat
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Wagle SR, Ionescu CM, Kovacevic B, Jones M, Foster T, Lim P, Lewkowicz M, Ðanić M, Mikov M, Mooranian A, Al-Salami H. Pharmaceutical characterization of probucol bile acid-lithocholic acid nanoparticles to prevent chronic hearing related and similar cellular oxidative stress pathologies. Nanomedicine (Lond) 2023; 18:923-940. [PMID: 37529927 DOI: 10.2217/nnm-2023-0092] [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] [Indexed: 08/03/2023] Open
Abstract
Background: Sensorineural hearing loss has been associated with oxidative stress. However, an antioxidant that passes effectively through the ear remains elusive. Method: Probucol (PB)-based nanoparticles were formed using a spray-drying encapsulation technique, characterized and tested in vitro. Results: Uniform, spherical nanoparticles were produced. The addition of lithocholic acid to PB formulations did not affect drug content or production yield, but it did modify capsule size, surface tension, electrokinetic stability and drug release. Cell viability, bioenergetics and inflammatory profiles were improved when auditory cells were exposed to PB-based nanoparticles, which showed antioxidant properties (p < 0.05). Conclusion: PB-based nanoparticles can potentially protect the auditory cell line from oxidative stress and could be used in future in vivo studies as a potential new therapeutic agent for sensorineural hearing loss.
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Affiliation(s)
- Susbin R Wagle
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Corina M Ionescu
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Bozica Kovacevic
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Melissa Jones
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Thomas Foster
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Patrick Lim
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Michael Lewkowicz
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Maja Ðanić
- Department of Pharmacology, Toxicology & Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad (Hajduk Veljkova 3, 21101), Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology & Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad (Hajduk Veljkova 3, 21101), Serbia
| | - Armin Mooranian
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
- School of Pharmacy, University of Otago, Dunedin, 9016, Otago, New Zealand
| | - Hani Al-Salami
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Perth, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
- Medical School, University of Western Australia, Perth 6907, Western Australia, Australia
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3
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Preparation, Characterization and Pharmacokinetics of Tolfenamic Acid-Loaded Solid Lipid Nanoparticles. Pharmaceutics 2022; 14:pharmaceutics14091929. [PMID: 36145677 PMCID: PMC9503184 DOI: 10.3390/pharmaceutics14091929] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/26/2022] Open
Abstract
The clinical use of nonsteroidal anti-inflammatory drugs is limited by their poor water solubility, unstable absorption, and low bioavailability. Solid lipid nanoparticles (SLNs) exhibit high biocompatibility and the ability to improve the bioavailability of drugs with low water solubility. Therefore, in this study, a tolfenamic acid solid lipid nanoparticle (TA-SLN) suspension was prepared by a hot melt–emulsification ultrasonication method to improve the sustained release and bioavailability of TA. The encapsulation efficiency (EE), loading capacity (LC), particle size, polydispersity index (PDI), and zeta potential of the TA-SLN suspension were 82.50 ± 0.63%, 25.13 ± 0.28%, 492 ± 6.51 nm, 0.309 ± 0.02 and −21.7 ± 0.51 mV, respectively. The TA-SLN suspension was characterized by dynamic light scattering (DLS), fluorescence microscopy (FM), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and Fourier transform infrared (FT-IR) spectroscopy. The TA-SLN suspension showed improved sustained drug release in vitro compared with the commercially available TA injection. After intramuscular administration to pigs (4 mg/kg), the TA-SLN suspension displayed increases in the pharmacokinetic parameters Tmax, T1/2, and MRT0–∞ by 4.39-, 3.78-, and 3.78-fold, respectively, compared with TA injection, and showed a relative bioavailability of 185.33%. Thus, this prepared solid lipid nanosuspension is a promising new formulation.
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Zhang J, Cran MJ. Production of polyhydroxyalkanoate nanoparticles using a green solvent. J Appl Polym Sci 2022. [DOI: 10.1002/app.52319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jianhua Zhang
- Institute for Sustainable Industries and Liveable Cities Victoria University Melbourne Australia
| | - Marlene J. Cran
- Institute for Sustainable Industries and Liveable Cities Victoria University Melbourne Australia
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Kumar R, Butreddy A, Kommineni N, Reddy PG, Bunekar N, Sarkar C, Dutt S, Mishra VK, Aadil KR, Mishra YK, Oupicky D, Kaushik A. Lignin: Drug/Gene Delivery and Tissue Engineering Applications. Int J Nanomedicine 2021; 16:2419-2441. [PMID: 33814908 PMCID: PMC8009556 DOI: 10.2147/ijn.s303462] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/05/2021] [Indexed: 02/06/2023] Open
Abstract
Lignin is an abundant renewable natural biopolymer. Moreover, a significant development in lignin pretreatment and processing technologies has opened a new window to explore lignin and lignin-based bionanomaterials. In the last decade, lignin has been widely explored in different applications such as drug and gene delivery, tissue engineering, food science, water purification, biofuels, environmental, pharmaceuticals, nutraceutical, catalysis, and other interesting low-value-added energy applications. The complex nature and antioxidant, antimicrobial, and biocompatibility of lignin attracted its use in various biomedical applications because of ease of functionalization, availability of diverse functional sites, tunable physicochemical and mechanical properties. In addition to it, its diverse properties such as reactivity towards oxygen radical, metal chelation, renewable nature, biodegradability, favorable interaction with cells, nature to mimic the extracellular environment, and ease of nanoparticles preparation make it a very interesting material for biomedical use. Tremendous progress has been made in drug delivery and tissue engineering in recent years. However, still, it remains challenging to identify an ideal and compatible nanomaterial for biomedical applications. In this review, recent progress of lignin towards biomedical applications especially in drug delivery and in tissue engineering along with challenges, future possibilities have been comprehensively reviewed.
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Affiliation(s)
- Raj Kumar
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Arun Butreddy
- Formulation R&D, Biological E. Limited, IKP Knowledge Park, Hyderabad, Telangana State, 500078, India
| | - Nagavendra Kommineni
- College of Pharmacy and Pharmaceutical Sciences, Florida Agricultural and Mechanical University, Tallahassee, FL, 32307, USA
| | - Pulikanti Guruprasad Reddy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Tirupati, Tirupati, 517507, Andhra Pradesh, India
| | - Naveen Bunekar
- Department of Chemistry, Chung Yuan Christian University, Chung Li, 32023, Taiwan
| | - Chandrani Sarkar
- Department of Chemistry, Mahila College, Kolhan University, Chaibasa, Jharkhand, 833202, India
| | - Sunil Dutt
- Department of Chemistry, Govt. Post Graduate College, Una, Himachal Pradesh, India
| | | | - Keshaw Ram Aadil
- Center for Basic Sciences, Pt. Ravishankar Shukla University, Raipur, 492010, Chhattishgarh, India
| | - Yogendra Kumar Mishra
- Mads Clausen Institute, NanoSYD, University of Southern Denmark, Sønderborg, 6400, Denmark
| | - David Oupicky
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Health Systems Engineering, Department of Natural Sciences, Division of Sciences, Art, & Mathematics, Florida Polytechnic University, Lakeland, FL, 33805, USA
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Kumar R, Kumar VB, Gedanken A. Sonochemical synthesis of carbon dots, mechanism, effect of parameters, and catalytic, energy, biomedical and tissue engineering applications. ULTRASONICS SONOCHEMISTRY 2020; 64:105009. [PMID: 32106066 DOI: 10.1016/j.ultsonch.2020.105009] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 01/28/2020] [Accepted: 02/06/2020] [Indexed: 05/27/2023]
Abstract
Carbon-based nanomaterials are gaining more and more interest because of their wide range of applications. Carbon dots (CDs) have shown exclusive interest due to unique and novel physicochemical, optical, electrical, and biological properties. Since their discovery, CDs became a promising material for wide range of research applications from energy to biomedical and tissue engineering applications. At same time several new methods have been developed for the synthesis of CDs. Compared to many of these methods, the sonochemical preparation is a green method with advantages such as facile, mild experimental conditions, green energy sources, and feasibility to formulate CDs and doped CDs with controlled physicochemical properties and lower toxicity. In the last five years, the sonochemically synthesized CDs were extensively studied in a wide range of applications. In this review, we discussed the sonochemical assisted synthesis of CDs, doped CDs and their nanocomposites. In addition to the synthetic route, we will discuss the effect of various experimental parameters on the physicochemical properties of CDs; and their applications in different research areas such as bioimaging, drug delivery, catalysis, antibacterial, polymerization, neural tissue engineering, dye absorption, ointments, electronic devices, lithium ion batteries, and supercapacitors. This review concludes with further research directions to be explored for the applications of sonochemical synthesized CDs.
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Affiliation(s)
- Raj Kumar
- Faculty of Engineering, Bar-Ilan University, Ramat Gan 52900, Israel; Bar Ilan Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 52900, Israel
| | - Vijay Bhooshan Kumar
- Bar Ilan Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 52900, Israel; Department of Chemistry, Bar-Ilan University, Ramat Gan 52900, Israel.
| | - Aharon Gedanken
- Bar Ilan Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 52900, Israel; Department of Chemistry, Bar-Ilan University, Ramat Gan 52900, Israel.
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7
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Drop-by-drop solvent hot antisolvent interaction method for engineering nanocrystallization of sulfamethoxazole to enhanced water solubility and bioavailability. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101359] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Affiliation(s)
- Raj Kumar
- School of Basic Sciences and Advanced Materials Research CentreIndian Institute of Technology Mandi Mandi, Himachal Pradesh India- 175005
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Kumar R, Singh A, Sharma K, Dhasmana D, Garg N, Siril PF. Preparation, characterization and in vitro cytotoxicity of Fenofibrate and Nabumetone loaded solid lipid nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 106:110184. [DOI: 10.1016/j.msec.2019.110184] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 08/17/2019] [Accepted: 09/09/2019] [Indexed: 12/29/2022]
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Acoustic cavitation assisted hot melt mixing technique for solid lipid nanoparticles formulation, characterization, and controlled delivery of poorly water soluble drugs. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101277] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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11
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Kumar R. Nanotechnology based approaches to enhance aqueous solubility and bioavailability of griseofulvin: A literature survey. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101221] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kumar R, Singh A, Garg N. Acoustic Cavitation-Assisted Formulation of Solid Lipid Nanoparticles using Different Stabilizers. ACS OMEGA 2019; 4:13360-13370. [PMID: 31460464 PMCID: PMC6705237 DOI: 10.1021/acsomega.9b01532] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/26/2019] [Indexed: 05/04/2023]
Abstract
Because of excellent bioavailability and high biocompatibility, solid lipid nanoparticles (SLNs) have gained attention in recent years, especially in drug delivery systems. SLNs are composed of a drug that is loaded in a lipid matrix and stabilized by surfactants. In this work, we have investigated the feasibility of the acoustic cavitation-assisted hot melt mixing method for the formulation of SLNs using different stabilizers. A lipid Compritol 888 ATO (CPT) and a poorly water-soluble drug ketoprofen (KP) were used as a model lipid and drug, respectively. Gelucire 50/13 (GEL), poloxamer 407 (POL), and Pluronic F-127 (PLU) were used as the stabilizers. The effect of the stabilizers on the physico-chemical properties of SLNs was thoroughly studied in this work. The particle size and stability in water at different temperatures were measured using a dynamic light scattering method. The spherical shape (below 250 nm) and core-shell morphology were confirmed by field-emission scanning electron microscopy and transmission electron microscopy. The chemical, crystal, and thermal properties of SLNs were studied by FTIR, XRD analysis, and DSC, respectively. SLNs prepared using different stabilizers showed an encapsulation efficiency of nearly 90% and a drug loading efficiency of 12%. SLNs showed more than 90% of drug released in 72 h and increased with pH was confirmed using in vitro drug release studies. SLNs were nontoxic to raw 264.7 cells. All stabilizers were found suitable for acoustic cavitation-assisted SLN formulation with high encapsulation efficiency and drug loading and good biocompatibility.
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Affiliation(s)
- Raj Kumar
- School
of Basic Sciences, Advanced Material Research Centre, and Bio-X Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
| | - Ashutosh Singh
- School
of Basic Sciences, Advanced Material Research Centre, and Bio-X Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
| | - Neha Garg
- School
of Basic Sciences, Advanced Material Research Centre, and Bio-X Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
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Kumar R, Soni P, Siril PF. Engineering the Morphology and Particle Size of High Energetic Compounds Using Drop-by-Drop and Drop-to-Drop Solvent-Antisolvent Interaction Methods. ACS OMEGA 2019; 4:5424-5433. [PMID: 31459707 DOI: 10.1021/acsomega.8b0321410.1021/acsomega.8b03214.s001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 03/06/2019] [Indexed: 05/27/2023]
Abstract
Morphology-controlled precipitation of three powerful organic high energetic compounds (HECs) viz. cyclotrimethylenetrinitramine (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), and 2-methyl-1,3,5-trinitrobenzene (TNT) was achieved by two different processes, namely, drop-by-drop (DBD) and drop-to-drop (DTD) solvent-antisolvent interaction methods. Effect of different experimental parameters on the mean size and morphology of the prepared submicron-sized particles of HECs was investigated thoroughly. The DBD method favors the formation of nanosized particles of RDX and TNT at lower concentrations (5 mM). However, a significant increase in the mean particle size occurred at higher concentrations (25 and 50 mM). Formation of facetted crystals of RDX, HMX, and nanorods of TNT was observed at higher concentrations because of the interaction of crystal facets with the antisolvent. Relatively, smaller sized, spherical particles of RDX and HMX could be prepared through the DTD method even at higher concentrations (25 mM). The DTD method is a continuous process and hence is a facile method for industrial applications. X-ray diffraction and Fourier transform infrared spectroscopy studies revealed that RDX, HMX and TNT were precipitated in their most stable polymorphic forms α, β, and monoclinic, respectively. Differential scanning calorimetry showed that the thermal response of the nano-HECs was similar to the respective raw-HECs. A slight decrease in crystallinity and the melting point was observed because of the decrease in the mean particle size.
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Affiliation(s)
- Raj Kumar
- School of Basic Sciences and Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
- School of Basic Sciences and Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
| | - Pramod Soni
- Terminal Ballistics Research Laboratory, Sector-30, Chandigarh 160030, India
| | - Prem Felix Siril
- School of Basic Sciences and Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
- School of Basic Sciences and Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
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Kumar R, Soni P, Siril PF. Engineering the Morphology and Particle Size of High Energetic Compounds Using Drop-by-Drop and Drop-to-Drop Solvent-Antisolvent Interaction Methods. ACS OMEGA 2019; 4:5424-5433. [PMID: 31459707 PMCID: PMC6648681 DOI: 10.1021/acsomega.8b03214] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 03/06/2019] [Indexed: 05/09/2023]
Abstract
Morphology-controlled precipitation of three powerful organic high energetic compounds (HECs) viz. cyclotrimethylenetrinitramine (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), and 2-methyl-1,3,5-trinitrobenzene (TNT) was achieved by two different processes, namely, drop-by-drop (DBD) and drop-to-drop (DTD) solvent-antisolvent interaction methods. Effect of different experimental parameters on the mean size and morphology of the prepared submicron-sized particles of HECs was investigated thoroughly. The DBD method favors the formation of nanosized particles of RDX and TNT at lower concentrations (5 mM). However, a significant increase in the mean particle size occurred at higher concentrations (25 and 50 mM). Formation of facetted crystals of RDX, HMX, and nanorods of TNT was observed at higher concentrations because of the interaction of crystal facets with the antisolvent. Relatively, smaller sized, spherical particles of RDX and HMX could be prepared through the DTD method even at higher concentrations (25 mM). The DTD method is a continuous process and hence is a facile method for industrial applications. X-ray diffraction and Fourier transform infrared spectroscopy studies revealed that RDX, HMX and TNT were precipitated in their most stable polymorphic forms α, β, and monoclinic, respectively. Differential scanning calorimetry showed that the thermal response of the nano-HECs was similar to the respective raw-HECs. A slight decrease in crystallinity and the melting point was observed because of the decrease in the mean particle size.
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Affiliation(s)
- Raj Kumar
- School
of Basic Sciences and Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
| | - Pramod Soni
- Terminal
Ballistics Research Laboratory, Sector-30, Chandigarh 160030, India
| | - Prem Felix Siril
- School
of Basic Sciences and Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
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Kumar R, Singh A, Garg N, Siril PF. Solid lipid nanoparticles for the controlled delivery of poorly water soluble non-steroidal anti-inflammatory drugs. ULTRASONICS SONOCHEMISTRY 2018; 40:686-696. [PMID: 28946474 DOI: 10.1016/j.ultsonch.2017.08.018] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 08/09/2017] [Accepted: 08/18/2017] [Indexed: 05/16/2023]
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (IBP) are among the most prescribed drugs across the globe. However, most NSAIDs are insoluble in water leading them to have poor bioavailability and erratic absorption. Moreover, NSAIDs such as IBP and ketoprofen (KP) have to be administered very frequently due to their short plasma half-life leading to side effects. Controlled release formulations of IBP, KP and nabumetone (NBT) based on solid lipid nanoparticles (SLNs) were successfully synthesised in the present study to solve the above-mentioned challenges that are associated with NSAIDs. SLNs were prepared in two steps; hot-melt homogenization followed by sonication to formulate SLNs with spherical morphology. While capmul® GMS-50K (capmul) was used as the lipid due to the high solubility of the studied drugs in it, gelucire® 50/13 (gelucire) was used as the surfactant. It was found that particle size was directly proportional to drug concentration and inversely proportional to surfactant concentration, volume of water added and temperature of water. Ultrasonication in a pulse mode with optimum duration of 15min was essential to obtain smaller nanoparticles through the formation of a nanoemulsion. Drug loaded SLNs with small particle size and narrow size distribution with good solid loading, encapsulation efficiency and drug loading percentage could be prepared using the optimised conditions. SLNs prepared at the optimised condition were characterized thoroughly by using different techniques such as dynamic light scattering (DLS), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR). The cytotoxicity results showed that the prepared SLNs are non-toxic to Raw cell line. The drugs IBP, KP and NBT showed 53, 74 and 69% of percentage entrapment efficiency with drug loading of 6, 2 and 7% respectively. Slow, steady and sustained drug release was observed from the SLNs for over 6days.
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Affiliation(s)
- Raj Kumar
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India; Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
| | - Ashutosh Singh
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India; Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
| | - Neha Garg
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India; Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India
| | - Prem Felix Siril
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India; Advanced Material Research Centre, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India.
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Kumar R, Siril PF. Enhancing the Solubility of Fenofibrate by Nanocrystal Formation and Encapsulation. AAPS PharmSciTech 2018; 19:284-292. [PMID: 28702816 DOI: 10.1208/s12249-017-0840-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 06/22/2017] [Indexed: 12/20/2022] Open
Abstract
Development of techniques to enhance bioavailability of drugs having poor water solubility is a big challenge for pharmaceutical industry. Solubility can be enhanced by particle size reduction and encapsulation using hydrophilic polymers. Fenofibrate (FF) is a drug for regulating lipids. Multi-fold enhancement in solubility of FF has been achieved by nanocrystal formation in the present study. Nanoparticles were prepared by an evaporation-assisted solvent-antisolvent interaction (EASAI) approach. Water-soluble polymers, viz. polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), and hydroxypropyl methylcellulose (HPMC), were used to encapsulate and thus control the particle size of FF nanocrystals. Spherical particles having average particle size well below 30 nm could be prepared under optimum conditions. Almost complete release of the drug molecules from the polymer-stabilized nanocrystals within 2 h was clearly evident from the in vitro drug release studies. Infrared (FTIR) spectroscopy indicated the absence of solvent impurities and any strong interaction between the drug and stabilizers. The polymorphic form of raw-FF was retained in the nanoparticles as per the X-ray diffraction (XRD) patterns. Lower crystallinity of the nanoformulated samples compared to raw-FF was confirmed by differential scanning calorimetric (DSC) studies.
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