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Eco-friendly and facile production of antibacterial zinc oxide nanoparticles from Grewia flavescens (G. flavescens) leaf extract for biomedical applications. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Malviya R, Awasthi R, Sharma PK, Dubey SK. Stabilization of Etoricoxib Nanosuspension Using Acacia chundra Gum and Copolymers: Preparation, Characterization, and In Vitro Cytotoxic Study. Assay Drug Dev Technol 2021; 19:306-321. [PMID: 34015226 DOI: 10.1089/adt.2020.1054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Present communication deals with the stabilization of etoricoxib nanosuspension using Acacia chundra gum and its acrylamide-grafted and carboxymethylated copolymers. Acrylamide grafting and carboxymethylation of A. chundra gum were carried out and synthesized copolymers were characterized. Ultrasound-assisted solvent-antisolvent method was utilized to co-precipitate the stabilizers over etoricoxib nanoprecipitates. A 32 full factorial design was used to evaluate the effect of independent variables, that is, the concentration of drug and stabilizer over the dependent variables, that is, particle size (PS), and entrapment efficiency (EE%) of nanoparticles. The effect of process parameters over super saturation, nucleation, and PS were studied and the role of mixing and ultrasound radiation was correlated. FTIR, DSC, and 1H NMR analysis showed a significant difference between the copolymers. The application of stabilizers leads to the synthesis of small, spherical, no aggregated, and composite nanoparticles. PS growth analysis after 45 days showed no sign of "Ostwald repining" and aggregation. Optimized formulations prepared using A. chundra gum (formulation K9), acrylamide-grafted (formulation A8), and carboxymethylated (formulation C1) copolymers showed t80% in 190, 270, and 170 min, respectively. Cytotoxic studies showed that the formulation A8 had better control over cell growth than the pure drug against MCF-7 cell line. The results indicated that the A. chundra gum and its acrylamide and carboxymethylated copolymers can be easily synthesized and utilized for the fabrication of stabilized nanosuspension.
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Affiliation(s)
- Rishabha Malviya
- Polymer Science Laboratory, Department of Pharmacy, School of Medical & Allied Sciences, Galgotias University, Greater Noida, India.,Department of Pharmacy, Uttarakhand Technical University, Dehradun, India
| | - Rajendra Awasthi
- Amity Institute of Pharmacy, Amity University Uttar Pradesh, Noida, India
| | - Pramod Kumar Sharma
- Polymer Science Laboratory, Department of Pharmacy, School of Medical & Allied Sciences, Galgotias University, Greater Noida, India
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3
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Advances in nanotechnology and nanomaterials based strategies for neural tissue engineering. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101617] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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4
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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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Kandilli B, Ugur Kaplan AB, Cetin M, Taspinar N, Ertugrul MS, Aydin IC, Hacimuftuoglu A. Carbamazepine and levetiracetam-loaded PLGA nanoparticles prepared by nanoprecipitation method: in vitro and in vivo studies. Drug Dev Ind Pharm 2020; 46:1063-1072. [DOI: 10.1080/03639045.2020.1769127] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Busra Kandilli
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Afife Busra Ugur Kaplan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Meltem Cetin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Numan Taspinar
- Department of Medical Pharmacology, Faculty of Medicine, Usak University, Usak, Turkey
| | - Muhammed Sait Ertugrul
- Department of Pharmacology, Faculty of Pharmacy, Agri Ibrahim Cecen University, Agri, Turkey
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Ismail Cagri Aydin
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Ahmet Hacimuftuoglu
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
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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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7
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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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8
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Das M, Goswami U, Bhattacharyya S, Kandimalla R, Chattopadhyay A, Ghosh SS. Integration of a Nonsteroidal Anti-Inflammatory Drug with Luminescent Copper for in Vivo Cancer Therapy in a Mouse Model. ACS APPLIED BIO MATERIALS 2020; 3:227-238. [DOI: 10.1021/acsabm.9b00751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Madhumita Das
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
- Guwahati Neurological Research Centre (GNRC) Medical Lab, North Guwahati 781031, India
| | - Upashi Goswami
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Srirupa Bhattacharyya
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Raghuram Kandimalla
- Institute of Advance Study of Science and Technology, Guwahati 781035, India
| | - Arun Chattopadhyay
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Siddhartha Sankar Ghosh
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
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Khan N, Shah FA, Rana I, Ansari MM, Din FU, Rizvi SZH, Aman W, Lee GY, Lee ES, Kim JK, Zeb A. Nanostructured lipid carriers-mediated brain delivery of carbamazepine for improved in vivo anticonvulsant and anxiolytic activity. Int J Pharm 2020; 577:119033. [PMID: 31954864 DOI: 10.1016/j.ijpharm.2020.119033] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 12/20/2019] [Accepted: 01/11/2020] [Indexed: 12/24/2022]
Abstract
The limited brain delivery of carbamezapine (CBZ) presents a major hurdle in the successful epilepsy treatment. The potential of carbamezapine-loaded nanostructured lipid carriers (CBZ-NLCs) for improved brain delivery is investigated in the current study. CBZ-NLCs were prepared by using binary mixture of trilaurin and oleic acid as a lipid core stabilized with Poloxamer 188, Tween 80 and Span 80. CBZ-NLCs were evaluated for physicochemical properties, in vitro release, in vivo brain kinetics, anticonvulsant and anxiolytic activities. The optimized CBZ-NLCs demonstrated nanometric particle size (97.7 nm), surface charge of -22 mV and high drug incorporation (85%). CBZ-NLCs displayed biphasic release pattern with initial fast followed by sustained drug release. CBZ-NLCs significantly enhanced the AUC of CBZ (520.4 µg·h/mL) in brain compared with CBZ dispersion (244.9 µg·h/mL). In vivo anticonvulsant activity of CBZ-NLCs in PTZ-induced seizure model showed a significant increase in the onset time (143.0 sec) and reduction in duration (17.2 sec) of tonic-clonic seizures compared with CBZ dispersion (75.4 and 37.2 sec). The anxiolytic activity in light-dark box and elevated-plus maze models also demonstrated superiority of CBZ-NLCs to CBZ dispersion. From the results, CBZ-NLCs presents a promising strategy to improve brain delivery and therapeutic outcomes of CBZ in epilepsy.
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Affiliation(s)
- Namrah Khan
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Fawad Ali Shah
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Isra Rana
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Muhammad Mohsin Ansari
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Fakhar Ud Din
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Syed Zaki Husain Rizvi
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Waqar Aman
- Faculty of Pharmacy, University of Central Punjab, Lahore, Pakistan
| | - Gwan-Yeong Lee
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi, Republic of Korea
| | - Eun-Sun Lee
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi, Republic of Korea
| | - Jin-Ki Kim
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi, Republic of Korea.
| | - Alam Zeb
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan.
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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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Kuk DH, Ha ES, Ha DH, Sim WY, Lee SK, Jeong JS, Kim JS, Baek IH, Park H, Choi DH, Yoo JW, Jeong SH, Hwang SJ, Kim MS. Development of a Resveratrol Nanosuspension Using the Antisolvent Precipitation Method without Solvent Removal, Based on a Quality by Design (QbD) Approach. Pharmaceutics 2019; 11:E688. [PMID: 31861173 PMCID: PMC6955680 DOI: 10.3390/pharmaceutics11120688] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/11/2019] [Accepted: 12/16/2019] [Indexed: 01/17/2023] Open
Abstract
The purpose of this study was to develop a resveratrol nanosuspension with enhanced oral bioavailability, based on an understanding of the formulation and process parameters of nanosuspensions and using a quality by design (QbD) approach. Particularly, the antisolvent method, which requires no solvent removal and no heating, is newly applied to prepare resveratrol nanosuspension. To ensure the quality of the resveratrol nanosuspensions, a quality target product profile (QTPP) was defined. The particle size (z-average, d90), zeta potential, and drug content parameters affecting the QTPP were selected as critical quality attributes (CQAs). The optimum composition obtained using a 3-factor, 3-level Box-Behnken design was as follows: polyvinylpyrrolidone vinyl acetate (10 mg/mL), polyvinylpyrrolidone K12 (5 mg/mL), sodium lauryl sulfate (1 mg/mL), and diethylene glycol monoethyl ether (DEGEE, 5% v/v) at a resveratrol concentration of 5 mg/mL. The initial particle size (z-average) was 46.3 nm and the zeta potential was -38.02 mV. The robustness of the antisolvent process using the optimized composition conditions was ensured by a full factorial design. The dissolution rate of the optimized resveratrol nanosuspension was significantly greater than that of the resveratrol raw material. An in vivo pharmacokinetic study in rats showed that the area under the plasma concentration versus time curve (AUC0-12h) and the maximum plasma concentration (Cmax) respectively, than those of the resveratrol raw material. Therefore, the prepara values of the resveratrol nanosuspension were approximately 1.6- and 5.7-fold higher,tion of a resveratrol nanosuspension using the QbD approach may be an effective strategy for the development of a new dosage form of resveratrol, with enhanced oral bioavailability.
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Affiliation(s)
- Do-Hoon Kuk
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (D.-H.K.); (E.-S.H.); (D.-H.H.); (W.-Y.S.); (S.-K.L.); (J.-S.J.); (J.-W.Y.)
| | - Eun-Sol Ha
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (D.-H.K.); (E.-S.H.); (D.-H.H.); (W.-Y.S.); (S.-K.L.); (J.-S.J.); (J.-W.Y.)
| | - Dong-Hyun Ha
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (D.-H.K.); (E.-S.H.); (D.-H.H.); (W.-Y.S.); (S.-K.L.); (J.-S.J.); (J.-W.Y.)
| | - Woo-Yong Sim
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (D.-H.K.); (E.-S.H.); (D.-H.H.); (W.-Y.S.); (S.-K.L.); (J.-S.J.); (J.-W.Y.)
| | - Seon-Kwang Lee
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (D.-H.K.); (E.-S.H.); (D.-H.H.); (W.-Y.S.); (S.-K.L.); (J.-S.J.); (J.-W.Y.)
| | - Ji-Su Jeong
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (D.-H.K.); (E.-S.H.); (D.-H.H.); (W.-Y.S.); (S.-K.L.); (J.-S.J.); (J.-W.Y.)
| | - Jeong-Soo Kim
- Dong-A ST Co. Ltd., Giheung-gu, Yongin, Gyeonggi 446-905, Korea;
| | - In-hwan Baek
- College of Pharmacy, Kyungsung University, 309, Suyeong-ro, Nam-gu, Busan 48434, Korea;
| | - Heejun Park
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA;
| | - Du Hyung Choi
- Department of Pharmaceutical Engineering, Inje University, Gyeongnam 621-749, Korea;
| | - Jin-Wook Yoo
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (D.-H.K.); (E.-S.H.); (D.-H.H.); (W.-Y.S.); (S.-K.L.); (J.-S.J.); (J.-W.Y.)
| | | | - Sung-Joo Hwang
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea;
| | - Min-Soo Kim
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea; (D.-H.K.); (E.-S.H.); (D.-H.H.); (W.-Y.S.); (S.-K.L.); (J.-S.J.); (J.-W.Y.)
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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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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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Stability facilitation of nanoparticles prepared by ultrasound assisted solvent-antisolvent method: Effect of neem gum, acrylamide grafted neem gum and carboxymethylated neem gum over size, morphology and drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:772-784. [DOI: 10.1016/j.msec.2018.06.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 05/17/2018] [Accepted: 06/09/2018] [Indexed: 11/19/2022]
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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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Kumar R, Siril PF, Javid F. Unusual anti-leukemia activity of nanoformulated naproxen and other non-steroidal anti-inflammatory drugs. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:1335-44. [DOI: 10.1016/j.msec.2016.08.024] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 07/08/2016] [Accepted: 08/08/2016] [Indexed: 01/10/2023]
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Kumar R, Siril PF. Preparation and characterization of polyvinyl alcohol stabilized griseofulvin nanoparticles. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.matpr.2016.04.135] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wu J, Zhou W, Cheng Q, Yang J. Polyvinylpyrrolidone-stabilized magnetic nickel nanochains for cancer hyperthermia and catalysis applications. RSC Adv 2015. [DOI: 10.1039/c4ra10545a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Novel polyvinylpyrrolidone-stabilized magnetic nickel nanochain (Ni-NC@PVP) have been reported by simple solvothermal method for potential cancer hyperthermia and catalytic applications.
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Affiliation(s)
- Jian Wu
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University
- Nanyang 639798
- Singapore
- State Key Laboratory of Coal Conversion
| | - Wei Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Qingmei Cheng
- Department of Chemistry
- Merkert Chemistry Center
- Boston College
- Chestnut Hill
- USA
| | - Jinglei Yang
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University
- Nanyang 639798
- Singapore
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