201
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Rahimi M, Valeh-e-Sheyda P, Zarghami R, Rashidi H. On the mixing characteristics of a poorly water soluble drug through microfluidic-assisted nanoprecipitation: Experimental and numerical study. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.23074] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Masoud Rahimi
- CFD Research Center; Chemical Engineering Department; Razi University; Taghe Bostan Kermanshah Iran
| | | | - Reza Zarghami
- Multiphase Systems Research Laboratory; School of Chemical Engineering; College of Engineering; University of Tehran; P.O. Box 11155-4563 Tehran Iran
| | - Hamed Rashidi
- Chemical Engineering Department; Kermanshah University of Technology; Kermanshah Iran
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202
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Gu C, Liu Z, Yuan X, Li W, Zu Y, Fu Y. Preparation of Vitexin Nanoparticles by Combining the Antisolvent Precipitation and High Pressure Homogenization Approaches Followed by Lyophilization for Dissolution Rate Enhancement. Molecules 2017; 22:molecules22112038. [PMID: 29165376 PMCID: PMC6150166 DOI: 10.3390/molecules22112038] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 11/16/2017] [Accepted: 11/18/2017] [Indexed: 01/22/2023] Open
Abstract
Vitexin, a natural flavonoid found in many medicinal plants, is well known for its rich pharmacological activities. However, the poor water solubility of vitexin has limited its therapeutic application. The aim of this study was to prepare the nanoparticles of vitexin by combining the antisolvent precipitation (ASP) and high pressure homogenization (HPH) approaches followed by lyophilization for improving the dissolution rate of this poorly water-soluble drug. The effects of main factors influencing the mean particle size (MPS) of vitexin were investigated and optimized. Under optimum conditions, vitexin nanosuspensions with an MPS of 80.5 nm were obtained and then lyophilized to form nanoparticles. The obtained vitexin nanoparticles were further characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), mass spectrometry (MS), X-ray powder diffraction (XRPD), gas chromatography (GC) and dissolution testing. The results showed that the nanoparticles of vitexin were converted into an amorphous form, with its chemical structure unchanged. Additionally, the residual dimethyl sulfoxide (DMSO) is lower than the International Conference on Harmonization (ICH) limit for class 3 solvents. The dissolution rate of processed vitexin was significantly higher (5.58-fold) than that of raw drug. Overall, the combinative process we developed is an effective way to produce vitexin nanoparticles with markedly enhanced dissolution rate.
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Affiliation(s)
- Chengbo Gu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
| | - Ziwei Liu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
| | - Xiaohan Yuan
- Life Science and Biotechnique Research Center, Northeast Agricultural University, Harbin 150030, China.
| | - Wang Li
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
| | - Yuangang Zu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
| | - Yujie Fu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
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203
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Guha IF, Anand S, Varanasi KK. Creating nanoscale emulsions using condensation. Nat Commun 2017; 8:1371. [PMID: 29118327 PMCID: PMC5678165 DOI: 10.1038/s41467-017-01420-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 09/12/2017] [Indexed: 12/02/2022] Open
Abstract
Nanoscale emulsions are essential components in numerous products, ranging from processed foods to novel drug delivery systems. Existing emulsification methods rely either on the breakup of larger droplets or solvent exchange/inversion. Here we report a simple, scalable method of creating nanoscale water-in-oil emulsions by condensing water vapor onto a subcooled oil-surfactant solution. Our technique enables a bottom-up approach to forming small-scale emulsions. Nanoscale water droplets nucleate at the oil/air interface and spontaneously disperse within the oil, due to the spreading dynamics of oil on water. Oil-soluble surfactants stabilize the resulting emulsions. We find that the oil-surfactant concentration controls the spreading behavior of oil on water, as well as the peak size, polydispersity, and stability of the resulting emulsions. Using condensation, we form emulsions with peak radii around 100 nm and polydispersities around 10%. This emulsion formation technique may open different routes to creating emulsions, colloidal systems, and emulsion-based materials. Emulsions—stabilized mixtures of immiscible liquids—are found in many products, ranging from pharmaceuticals to food. Here Guha et al. propose a simple emulsification method where water vapor is condensed onto oil with surfactant, producing a water-in-oil emulsion with droplets as small as 100 nm.
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Affiliation(s)
- Ingrid F Guha
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Sushant Anand
- Department of Mechanical & Industrial Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA. .,Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
| | - Kripa K Varanasi
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
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204
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Hong J, Liu Y, Xiao Y, Yang X, Su W, Zhang M, Liao Y, Kuang H, Wang X. High drug payload curcumin nanosuspensions stabilized by mPEG-DSPE and SPC: in vitro and in vivo evaluation. Drug Deliv 2017; 24:109-120. [PMID: 28155567 PMCID: PMC8253124 DOI: 10.1080/10717544.2016.1233589] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 09/04/2016] [Accepted: 09/04/2016] [Indexed: 11/13/2022] Open
Abstract
CONTEXT Curcumin (CUR) is a promising drug candidate based on its broad bioactivities and good antitumor effect, but the application of CUR is potentially restricted because of its poor solubility and bioavailability. OBJECTIVE This study aims at developing a simple and effective drug delivery system for CUR to enhance its solubility and bioavailability thus to improve its antitumor efficacy. MATERIALS AND METHODS Curcumin nanosuspensions (CUR-NSps) were prepared by precipitation-ultrasonication method using mPEG2000-DSPE and soybean lecithin as a combined stabilizer. RESULTS CUR-NSps with a high drug payload of 67.07% were successfully prepared. The resultant CUR-NSps had a mean particle size of 186.33 ± 2.73 nm with a zeta potential of -19.00 ± 1.31 mV. In vitro cytotoxicity assay showed that CUR-NSps exhibited enhanced cytotoxicity compared to CUR solution. The pharmacokinetics results demonstrated that CUR-NSps exhibited a significantly greater AUC0-24 and prolonged MRT compared to CUR injections after intravenous administration. In the biodistribution study, CUR-NSps demonstrated enhanced biodistribution compared with CUR injections in liver, spleen, kidney, brain, and tumor. The CUR-NSps also showed improved antitumor therapeutic efficacy over the injections (70.34% versus 40.03%, p < 0.01). CONCLUSIONS These results suggest that CUR-NSps might represent a promising drug formulation for intravenous administration of CUR for the treatment of cancer.
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Affiliation(s)
- Jingyi Hong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yingying Liu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, China, and
| | - Yao Xiao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, China, and
| | - Xiaofeng Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Wenjing Su
- Life Science and Environmental Science Center, Harbin University of Commerce, Harbin, China
| | - Mingzhu Zhang
- Life Science and Environmental Science Center, Harbin University of Commerce, Harbin, China
| | - Yonghong Liao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Haixue Kuang
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, China, and
| | - Xiangtao Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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205
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Gera S, Talluri S, Rangaraj N, Sampathi S. Formulation and Evaluation of Naringenin Nanosuspensions for Bioavailability Enhancement. AAPS PharmSciTech 2017; 18:3151-3162. [PMID: 28534300 DOI: 10.1208/s12249-017-0790-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 04/20/2017] [Indexed: 11/30/2022] Open
Abstract
The clinical potential of naringenin (NRG) is compromised due to its poor aqueous solubility and low oral bioavailability. The study is aimed at addressing these issues by means of naringenin nanosuspensions (NRG-NS) formulated using polyvinylpyrrolidone (PVP K-90) as stabiliser via antisolvent sonoprecipitation method. Optimisation of sonication time, drug concentration and stabilisers was done based on particle size. Characterisation of pure NRG and NRG-NS was carried out by scanning electron microscopy, differential scanning calorimetry (DSC), x-ray powder diffractometry (XRD) and Fourier transform infrared spectroscopy (FTIR). In vitro dissolution, intestinal absorption by non-everted rat intestinal sac model and in situ single pass intestinal perfusion techniques were performed for further investigation. Nanosuspensions prepared using PVP K-90 lead to minimum particle size (117 ± 5 nm) with zeta potential of -14.6 ± 5.6 mV. The particle size was affected by increasing sonication time, concentration of stabiliser and drug. Nanosizing process converted the crystalline drug into amorphous form as predicted from DSC and XRD patterns. FTIR demonstrated the formation of hydrogen bonds between drug and polymer. NRG-NS displayed a higher dissolution amount (91 ± 4.4% during 60 min) compared to NRG powder (42 ± 0.41%). The apparent and effective permeability of NRG-NS was increased as compared to the pure NRG. The in vivo pharmacokinetics demonstrated that the C max and AUC0-24 h values of NRG-NS were approximately 2- and 1.8-fold superior than the pure drug. Hence, overall results confirmed nanosuspensions as promising approach for NRG delivery with high absorption in gastrointestinal tract, improved dissolution and oral bioavailability.
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206
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Woźniak A, Grześkowiak BF, Babayevska N, Zalewski T, Drobna M, Woźniak-Budych M, Wiweger M, Słomski R, Jurga S. ZnO@Gd2O3 core/shell nanoparticles for biomedical applications: Physicochemical, in vitro and in vivo characterization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:603-615. [DOI: 10.1016/j.msec.2017.07.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 05/31/2017] [Accepted: 07/08/2017] [Indexed: 01/10/2023]
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207
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Granata G, Consoli GML, Lo Nigro R, Geraci C. Hydroxycinnamic acids loaded in lipid-core nanocapsules. Food Chem 2017; 245:551-556. [PMID: 29287408 DOI: 10.1016/j.foodchem.2017.10.106] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 10/19/2017] [Accepted: 10/19/2017] [Indexed: 12/30/2022]
Abstract
Ferulic, caffeic, sinapic, and coumaric acids, belonging to the class of hydroxycinnamic acids (HAs), are bioactive polyphenols widespread in the plant kingdom and present in the human diet. Due to their biological properties and effects in the prevention of various diseases associated with oxidative stress, HAs can be exploited for attractive nutraceutical applications. Starting from this and in order to increase bioaccessibility, we encapsulated HAs in lipid-core nanocapsules (NCs) based on a biodegradable and biocompatible poly(ε-caprolactone) polymer. The results showed that nanoparticles loaded with hydroxycinnamic acids (HA-NCs) have diameter of 224-253 nm, encapsulation efficiency of 53-78%, and are stable over time (30 days). In vitro tests evidenced that NCs are able to preserve HAs in the gastric simulated fluid and release them in the intestinal simulated fluid. The delivery system developed could be employed to create novel functional foods.
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Affiliation(s)
- Giuseppe Granata
- Istituto Chimica Biomolecolare - C.N.R., Via Paolo Gaifami 18, 95126, Italy
| | - Grazia M L Consoli
- Istituto Chimica Biomolecolare - C.N.R., Via Paolo Gaifami 18, 95126, Italy
| | - Raffaella Lo Nigro
- Istituto per la Microelettronica e i Microsistemi - C.N.R., Stradale Primo Sole 50, 95121 Catania, Italy
| | - Corrada Geraci
- Istituto Chimica Biomolecolare - C.N.R., Via Paolo Gaifami 18, 95126, Italy.
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208
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Sugumaran A, Ponnusamy C, Kandasamy P, Krishnaswami V, Palanichamy R, Kandasamy R, Lakshmanan M, Natesan S. Development and evaluation of camptothecin loaded polymer stabilized nanoemulsion: Targeting potential in 4T1-breast tumour xenograft model. Eur J Pharm Sci 2017; 116:15-25. [PMID: 28987538 DOI: 10.1016/j.ejps.2017.10.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 09/06/2017] [Accepted: 10/03/2017] [Indexed: 11/18/2022]
Abstract
Targeted delivery of anticancer agents is poised to improve cancer therapy, for which polymers can serve as targeting ligands or nanocarriers for chemotherapeutic agents. In this study, we have developed and evaluated the efficacy of a camptothecin (CPT)-loaded polymer stabilized nanoemulsion (PSNE) for the passive targeted delivery to breast cancer. Based on the pseudo-ternary phase diagrams, PSNEs were developed using capmul MCM:poloxamer 407 (4:1), solutol HS 15:simulsol P23 (1:2) and water. CPT polymer mixture was developed by solvent evaporation technique. The PSNEs were characterized for droplet size distribution, plasma protein adsorption, drug release, in-vivo targeting potential, hemolytic potential, cytotoxicity, genotoxicity, in-vivo biodistribution and CPT lactone ring stability. The developed PSNEs showed uniform droplet distribution, extended drug release (76.59±6.12% at 24h), acceptable hemolytic potential, significant cytotoxicity (IC50=176±4.3ng/mL) and genotoxicity against MCF-7 cancer cells but low DNA damage potential in human peripheral blood lymphocytes. The efficiency of PSNEs for the targeted delivery of CPT into the tumour regions was documented in 4T1-breast tumour xenografted BALB/c mice. In-vivo biodistribution study shows that 7105.84±568.46ng/g of CPT was passively targeted from PSNE to breast cancer tissue. About 80% of the lactone form was stable for 24h. Taken together, our study provides a promising strategy for developing PSNE-targeted drug delivery system for the breast cancer therapy.
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Affiliation(s)
- Abimanyu Sugumaran
- Department of Pharmaceutical Technology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, India; Department of Pharmaceutics, SRM College of Pharmacy, SRM University, Kattankulathur, India
| | - Chandrasekar Ponnusamy
- Department of Pharmaceutical Technology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, India
| | - Palanivel Kandasamy
- Department of Animal Science, Bharathidasan University, Tiruchirappalli, India
| | - Venkateshwaran Krishnaswami
- Department of Pharmaceutical Technology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, India
| | - Rajaguru Palanichamy
- Department of Biotechnology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, India
| | - Ruckmani Kandasamy
- Department of Pharmaceutical Technology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, India
| | | | - Subramanian Natesan
- Department of Pharmaceutical Technology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, India.
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209
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Colombo M, Orthmann S, Bellini M, Staufenbiel S, Bodmeier R. Influence of Drug Brittleness, Nanomilling Time, and Freeze-Drying on the Crystallinity of Poorly Water-Soluble Drugs and Its Implications for Solubility Enhancement. AAPS PharmSciTech 2017; 18:2437-2445. [PMID: 28168626 DOI: 10.1208/s12249-017-0722-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 01/16/2017] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to assess whether wet bead milling of dexamethasone and tacrolimus suspensions leads to a lower degree of crystallinity of nanocrystals, and if the degree of crystallinity affects the drug solubility, in addition to particle size. Powder X-ray diffraction (XRD) was used to determine the degree of crystallinity of the particles, which decreased during milling until reaching a plateau: the particles had ∼79% degree of crystallinity after 5 h milling. Different milling times were required for the two drugs in order to reach their plateaux, 2 h for dexamethasone and 3 h for tacrolimus. These results could be explained with the brittleness of the drugs. Dexamethasone was more brittle than tacrolimus, with an apparent elastic modulus of 16 GPa compared to ∼12 GPa of tacrolimus. Freeze-drying the nanosuspensions resulted in a reduction in the degree of crystallinity to ∼35% for dexamethasone and to ∼45% for tacrolimus in comparison to non-freeze-dried particles. Solubility studies were performed with a Sirius® inForm based on in situ UV/VIS spectroscopy. The reduced degree of crystallinity of nanocrystals after milling was responsible, in addition to the nanoparticle size, for the solubility increase. Indeed, while the smallest particle size (394 nm for dexamethasone and 240 nm for tacrolimus) did not always result in the highest increase in solubility (factor of 1.04 for dexamethasone and 1.3 with tacrolimus), the smallest degree of crystallinity was always characteristic of the maximum solubility obtained (factor of 1.15 for dexamethasone and 1.7 for tacrolimus).
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210
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Wang H, Sun Y, Yang B, Li S. Association between the physical stability of flurbiprofen suspension and the interaction of HPMC/SDS. Asian J Pharm Sci 2017; 13:63-71. [PMID: 32104379 PMCID: PMC7032101 DOI: 10.1016/j.ajps.2017.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/25/2017] [Accepted: 08/05/2017] [Indexed: 11/25/2022] Open
Abstract
The anionic surfactant sodium dodecylsulfate (SDS) has improved the physical stability of flurbiprofen (FBP) suspension, which was suspended by 0.2% (w/v) hydroxypropylmethyl cellulose (HPMC, K4M). Therefore, the physical stability of FBP suspensions and the interaction of HPMC/SDS were studied, and a certain association between them was revealed. The anti-solvent precipitation method was used to prepare suspensions. The apparent drug concentration from different sites was evaluated to get the dispersion of drug actually. The process of flocculation and deflocculation with the addition of SDS was caught by analyzing the morphology of the suspended particles. The physical stability of the FBP suspensions was characterized mainly by measuring the re-dispersion time, the zeta potential and particle size. Meanwhile, conductivity measurements were carried out to obtain the characteristic concentrations of SDS in HPMC/SDS system. The viscosities, the abilities for improving the solubility and wettability of FBP in the separate and mixed HPMC/SDS solutions were also contrasted respectively. The suspensions prepared with HPMC/SDS possessed better physical stability. The suspensions were uniform when the concentration of SDS was between the critical adsorption concentration (CAC) and the polymer saturation point (PSP). After PSP, the uniformity became worse and worse until the SDS was enough to form a deflocculation state. Besides, the re-dispersion time of FBP suspensions was longest when the concentration of SDS around CAC and shorter by shorter after the critical micelle concentration (CMC). The article provided a new sight on the relation between the interaction of excipient matrix and pharmaceutical preparations.
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Affiliation(s)
- Hongyu Wang
- Shenyang Pharmaceutical University, No.103, Wenhua Road, Shenyang 110016, China
| | - Yiwei Sun
- Linyi University, Middle section of Shuang Ling Road, Lanshan District, Linyi, Shandong 276005, China
| | - Baixue Yang
- Shenyang Pharmaceutical University, No.103, Wenhua Road, Shenyang 110016, China
| | - Sanming Li
- Shenyang Pharmaceutical University, No.103, Wenhua Road, Shenyang 110016, China
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211
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Yang C, Di P, Fu J, Xiong H, Jing Q, Ren G, Tang Y, Zheng W, Liu G, Ren F. Improving the physicochemical properties of bicalutamide by complex formation with bovine serum albumin. Eur J Pharm Sci 2017; 106:381-392. [DOI: 10.1016/j.ejps.2017.05.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/25/2017] [Accepted: 05/26/2017] [Indexed: 11/27/2022]
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212
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Chen M, Li W, Zhang X, Dong Y, Hua Y, Zhang H, Gao J, Zhao L, Li Y, Zheng A. In vitro and in vivo evaluation of SN-38 nanocrystals with different particle sizes. Int J Nanomedicine 2017; 12:5487-5500. [PMID: 28814865 PMCID: PMC5546766 DOI: 10.2147/ijn.s133816] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
7-Ethyl-10-hydroxycamptothecin (SN-38) is a potent broad-spectrum antitumor drug derived from irinotecan hydrochloride (CPT-11). Due to its poor solubility and instability of the active lactone ring, its clinical use is significantly limited. As one of the most promising formulations for poorly water-soluble drugs, nanocrystals have attracted increasing attention. In order to solve these problems and evaluate the antitumor effect of SN-38 in vitro and in vivo, two nanocrystals with markedly different particle sizes were prepared. Dynamic light scattering and transmission electron microscopy were used to investigate the two nanocrystals. The particle sizes of SN-38 nanocrystals A (SN-38/NCs-A) and SN-38 nanocrystals B (SN-38/NCs-B) were 229.5±1.99 and 799.2±14.44 nm, respectively. X-ray powder diffraction analysis showed that the crystalline state of SN-38 did not change in the size reduction process. An accelerated dissolution velocity of SN-38 was achieved by nanocrystals, and release rate of SN-38/NCs-A was significantly faster than that of SN-38/NCs-B. Cellular uptake, cellular cytotoxicity, pharmacokinetics, animal antitumor efficacy, and tissue distribution were subsequently examined. As a result, enhanced intracellular accumulation in HT1080 cells and cytotoxicity on different tumor cells were observed for SN-38/NCs-A compared to that for SN-38/NCs-B and solution. Besides, compared to the SN-38 solution, SN-38/NCs-A had a higher bioavailability after intravenous injection; while the bioavailability of SN-38/NCs-B was even lower than that of the SN-38 solution. SN-38/NCs-A exhibited a significant inhibition of tumor growth compared to SN-38 solution and SN-38/NCs-B in vivo. The antitumor effect of SN-38/NCs-B was stronger than SN-38 solution. The tissue distribution study in tumor-bearing mice showed that nanocrystals could markedly improve the drug accumulation in tumor tissue by the enhanced permeability and retention effect compared to SN-38 solution, and the amount of SN-38 in tumors of SN-38/NCs-A group was much more than that of SN-38/NCs-B group. In conclusion, nanocrystals dramatically enhanced the anticancer efficacy of SN-38 in vitro and in vivo, and the particle size had a significant influence on the dissolution behavior, pharmacokinetic properties, and tumor inhibition of nanocrystals.
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Affiliation(s)
- Min Chen
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology.,School of Pharmacy, Jinzhou Medical University, Jinzhou
| | - Wanqing Li
- School of Preclinical Medicine, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Xun Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology
| | - Ye Dong
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology
| | - Yabing Hua
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology
| | - Hui Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology
| | - Jing Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology
| | - Liang Zhao
- School of Pharmacy, Jinzhou Medical University, Jinzhou
| | - Ying Li
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology
| | - Aiping Zheng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology
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213
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Chang D, Ma Y, Cao G, Wang J, Zhang X, Feng J, Wang W. Improved oral bioavailability for lutein by nanocrystal technology: formulation development, in vitro and in vivo evaluation. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:1018-1024. [DOI: 10.1080/21691401.2017.1358732] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Daoxiao Chang
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yanni Ma
- Institute of Clinical Pharmacology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Guoyu Cao
- Forestry Technology Extension Station of Yantai City, Yantai, Shandong, China
| | - Jianhuan Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xia Zhang
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jun Feng
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Wenping Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
- Ningxia Engineering and Technology Research Center for Modernization of Hui Medicine & Key Lab of Hui Ethnic Medicine Modernization, Ministry of Education, Yinchuan, Ningxia, China
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214
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Narayan R, Pednekar A, Bhuyan D, Gowda C, Koteshwara KB, Nayak UY. A top-down technique to improve the solubility and bioavailability of aceclofenac: in vitro and in vivo studies. Int J Nanomedicine 2017; 12:4921-4935. [PMID: 28744125 PMCID: PMC5513828 DOI: 10.2147/ijn.s141504] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The aim of the present work was to tackle the solubility issue of a biopharmaceutics classification system (BCS)-II drug, aceclofenac. Although a number of attempts to increase the aqueous solubility have been made, none of the methods were taken up for scale-up. Hence size reduction technique by a top-down approach using wet milling process was utilized to improve the solubility and, consequently, the dissolution velocity of aceclofenac. The quality of the final product was ensured by Quality by Design approach wherein the effects of critical material attributes and critical process parameters were assessed on the critical quality attributes (CQAs) of nanocrystals. Box–Behnken design was applied to evaluate these effects on critical quality attributes. The optimized nanocrystals had a particle size of 484.7±54.12 nm with a polydispersity index (PDI) of 0.108±0.009. The solid state characterization of the formulation revealed that the crystalline nature of the drug was slightly reduced after the milling process. With the reduced particle size, the solubility of the nanocrystals was found to increase in both water and 0.1 N HCl when compared with that of unmilled pure aceclofenac. These results were further supported by in vitro release studies of nanocrystals where an appreciable dissolution velocity with 100.07%±2.38% release was observed for aceclofenac nanocrystals compared with 47.66%±4.53% release for pure unmilled aceclofenac at the end of 2 h. The in vivo pharmacokinetic data generated showed a statistically significant increase in the Cmax for aceclofenac nanocrystals of 3.75±0.28 µg/mL (for pure unmilled aceclofenac Cmax was 1.96±0.17 µg/mL). The results obtained indicated that the developed nanocrystals of aceclofenac were successful in improving the solubility, thus the absorption and bioavailability of the drug. Hence, it may be a viable and cost-effective alternative to the current therapy.
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Affiliation(s)
- Reema Narayan
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, India
| | - Abhyuday Pednekar
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, India
| | - Dipshikha Bhuyan
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, India.,Lupin Ltd. (Research Park), Pune, Maharashtra, India
| | - Chaitra Gowda
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, India.,Micro Labs Ltd., Bengaluru, Karnataka, India
| | - K B Koteshwara
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, India
| | - Usha Yogendra Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, India
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Steiner D, Finke JH, Kwade A. Redispersion of Nanoparticle-Loaded Orodispersible Films: Preservation of Particle Fineness. CHEM-ING-TECH 2017. [DOI: 10.1002/cite.201600139] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Denise Steiner
- Technische Universität Braunschweig; Institute for Particle Technology; Volkmaroder Straße 5 38104 Braunschweig Germany
- Technische Universität Braunschweig; PVZ - Center of Pharmaceutical Engineering; Franz-Liszt-Straße 35a 38106 Braunschweig Germany
| | - Jan Henrik Finke
- Technische Universität Braunschweig; Institute for Particle Technology; Volkmaroder Straße 5 38104 Braunschweig Germany
- Technische Universität Braunschweig; PVZ - Center of Pharmaceutical Engineering; Franz-Liszt-Straße 35a 38106 Braunschweig Germany
| | - Arno Kwade
- Technische Universität Braunschweig; Institute for Particle Technology; Volkmaroder Straße 5 38104 Braunschweig Germany
- Technische Universität Braunschweig; PVZ - Center of Pharmaceutical Engineering; Franz-Liszt-Straße 35a 38106 Braunschweig Germany
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216
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Mokhtar M, Gosselin P, Lacasse F, Hildgen P. Design of PEG-grafted-PLA nanoparticles as oral permeability enhancer for P-gp substrate drug model Famotidine. J Microencapsul 2017; 34:91-103. [PMID: 28151040 DOI: 10.1080/02652048.2017.1290155] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Bioavailability of oral drugs can be limited by an intestinal excretion process mediated by P-glycoprotein (P-gp). Polyethylene glycol (PEG) is a known P-gp inhibitor. Dispersion of Famotidine (a P-gp substrate) within PEGylated nanoparticles (NPs) was used to improve its oral bioavailability. In this work, we evaluated the potential impact of NPs prepared from a grafted copolymer of polylactic acid and PEG on P-gp function by studying in vitro permeability of Famotidine across Caco-2 cells. Copolymers of PEG grafted on polylactic acid (PLA) backbone (PLA-g-PEG) were synthesised with 1 mol% and 5 mol% PEG vs. lactic acid monomer using PEG 750 and 2000 Da. The polymers were used to prepare Famotidine-loaded NPs and tested in vitro on Caco-2 cells. Significant decrease in basolateral-to-apical transport of Famotidine was observed when Famotidine was encapsulated in NPs prepared from PLA-g-PEG5%. NPs prepared from PLA-g-PEG5% are promising to improve oral bioavailability of P-gp substrates.
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Affiliation(s)
- Mohamed Mokhtar
- a Faculty of Pharmacy , University of Montreal , Montreal , Quebec , Canada
| | - Patrick Gosselin
- b Corealis Pharma , Pharmaceutical R&D , Laval , Quebec , Canada
| | - François Lacasse
- a Faculty of Pharmacy , University of Montreal , Montreal , Quebec , Canada
| | - Patrice Hildgen
- c Faculty of Pharmacy , University of Montreal, Lab of Nanotech Pharmacy , Montreal , Quebec , Canada
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217
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Guo L, Kang L, Liu X, Lin X, Di D, Wu Y, Kong D, Deng Y, Song Y. A novel nanosuspension of andrographolide: Preparation, characterization and passive liver target evaluation in rats. Eur J Pharm Sci 2017; 104:13-22. [DOI: 10.1016/j.ejps.2017.03.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/11/2017] [Accepted: 03/12/2017] [Indexed: 11/15/2022]
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218
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Wang H, Zhang G, Ma X, Liu Y, Feng J, Park K, Wang W. Enhanced encapsulation and bioavailability of breviscapine in PLGA microparticles by nanocrystal and water-soluble polymer template techniques. Eur J Pharm Biopharm 2017; 115:177-185. [DOI: 10.1016/j.ejpb.2017.02.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/30/2017] [Accepted: 02/28/2017] [Indexed: 02/01/2023]
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219
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Göke K, Lorenz T, Repanas A, Schneider F, Steiner D, Baumann K, Bunjes H, Dietzel A, Finke JH, Glasmacher B, Kwade A. Novel strategies for the formulation and processing of poorly water-soluble drugs. Eur J Pharm Biopharm 2017; 126:40-56. [PMID: 28532676 DOI: 10.1016/j.ejpb.2017.05.008] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/10/2017] [Accepted: 05/15/2017] [Indexed: 12/31/2022]
Abstract
Low aqueous solubility of active pharmaceutical ingredients presents a serious challenge in the development process of new drug products. This article provides an overview on some of the current approaches for the formulation of poorly water-soluble drugs with a special focus on strategies pursued at the Center of Pharmaceutical Engineering of the TU Braunschweig. These comprise formulation in lipid-based colloidal drug delivery systems and experimental as well as computational approaches towards the efficient identification of the most suitable carrier systems. For less lipophilic substances the preparation of drug nanoparticles by milling and precipitation is investigated for instance by means of microsystem-based manufacturing techniques and with special regard to the preparation of individualized dosage forms. Another option to overcome issues with poor drug solubility is the incorporation into nanospun fibers.
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Affiliation(s)
- Katrin Göke
- Technische Universität Braunschweig, Institut für Pharmazeutische Technologie, Mendelssohnstr. 1, 38106 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Thomas Lorenz
- Technische Universität Braunschweig, Institut für Mikrotechnik, Alte Salzdahlumer Str. 203, 38124 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Alexandros Repanas
- Leibniz Universität Hannover, Institut für Mehrphasenprozesse, Callinstr. 36, 30167 Hannover, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Frederic Schneider
- Technische Universität Braunschweig, Institut für Medizinische und Pharmazeutische Chemie, Beethovenstr. 55, 38106 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Denise Steiner
- Technische Universität Braunschweig, Institut für Partikeltechnik, Volkmaroder Str. 5, 38104 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Knut Baumann
- Technische Universität Braunschweig, Institut für Medizinische und Pharmazeutische Chemie, Beethovenstr. 55, 38106 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Heike Bunjes
- Technische Universität Braunschweig, Institut für Pharmazeutische Technologie, Mendelssohnstr. 1, 38106 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Andreas Dietzel
- Technische Universität Braunschweig, Institut für Mikrotechnik, Alte Salzdahlumer Str. 203, 38124 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Jan H Finke
- Technische Universität Braunschweig, Institut für Partikeltechnik, Volkmaroder Str. 5, 38104 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Birgit Glasmacher
- Leibniz Universität Hannover, Institut für Mehrphasenprozesse, Callinstr. 36, 30167 Hannover, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Arno Kwade
- Technische Universität Braunschweig, Institut für Partikeltechnik, Volkmaroder Str. 5, 38104 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
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220
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Yang L, Hong J, Di J, Guo Y, Han M, Liu M, Wang X. 10-Hydroxycamptothecin (HCPT) nanosuspensions stabilized by mPEG 1000-HCPT conjugate: high stabilizing efficiency and improved antitumor efficacy. Int J Nanomedicine 2017; 12:3681-3695. [PMID: 28553107 PMCID: PMC5439984 DOI: 10.2147/ijn.s134005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
In this study, polyethylene glycol (PEG)ylated 10-hydroxycamptothecin (mPEG1000-HCPT) was synthesized and used as a stabilizer to prepare 10-hydroxycamptothecin (HCPT) nanosuspensions for their in vitro and in vivo antitumor investigation. The resultant HCPT nanosuspensions (HCPT-NSps) had a very high drug payload of 94.90% (w/w) and a mean particle size of 92.90±0.20 nm with narrow size distribution (polydispersity index of 0.16±0.01). HCPT-NSps could be lyophilized without the need of the addition of any cryoprotectant and then be reconstituted into nanosuspensions of a similar size by direct resuspension in water. HCPT was in crystalline form in HCPT-NSps. Using mPEG1000-HCPT as stabilizer, insoluble camptothecin and 7-ethyl-10-hydroxycamptothecin could also be easily made into nanosuspensions with similar features such as high drug payload, small particle size, and cryoprotectant-free freeze drying. The 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide assay indicated that the HCPT-NSps had a significantly higher cytotoxicity than HCPT injections, with 3.77 times lower IC50 value against HepG2 cells and 14.1 times lower IC50 value against MCF-7 cells. An in vivo study in H22 tumor-bearing mice after intravenous injection of HCPT-NSps demonstrated that HCPT-NSps significantly improved the antitumor efficacy compared to the commercially available HCPT injections (86.38% vs 34.97%) at the same dose of 5 mg/kg. Even at 1/4 of the dose, HCPT-NSps could also achieve a similar antitumor efficacy to that of HCPT injections. mPEG1000-HCPT may be a highly efficient stabilizer able to provide camptothecin-based drugs, and probably other antitumor agents containing aromatic structure, with unique nanosuspensions or nanocrystals for improved in vivo therapeutic efficacy.
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Affiliation(s)
- Linjie Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Jingyi Hong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Jing Di
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Yifei Guo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Meihua Han
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Meifeng Liu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, People's Republic of China
| | - Xiangtao Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
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221
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Nano-ophthalmology: Applications and considerations. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:1459-1472. [DOI: 10.1016/j.nano.2017.02.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 01/11/2017] [Accepted: 02/01/2017] [Indexed: 02/03/2023]
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222
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Nagaraj K, Narendar D, Kishan V. Development of olmesartan medoxomil optimized nanosuspension using the Box-Behnken design to improve oral bioavailability. Drug Dev Ind Pharm 2017; 43:1186-1196. [PMID: 28271908 DOI: 10.1080/03639045.2017.1304955] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The aim of the present investigation was to enhance the oral bioavailability of olmesartan medoxomil by improving its solubility and dissolution rate by preparing nanosuspension (OM-NS), using the Box-Behnken design. In this, four factors were evaluated at three levels. Independent variables include: concentration of drug (X1), concentration of surfactant (X2), concentration of polymer (X3) and number of homogenization cycles (X4). Based on preliminary studies, the size (Y1), zeta potential (ZP) (Y2) and % drug release at 5 min (Y3) were chosen as dependent responses. OM-NS was prepared by high pressure homogenization method. The size, PDI, ZP, assay, in vitro release and morphology of OM-NS were characterized. Further, the pharmacokinetic (PK) behavior of OM-NS was evaluated in male wistar rats. Statistically optimized OM-NS formulation exhibited mean particle size of 492 nm, ZP of -27.9 mV and 99.29% release in 5 min. OM-NS showed more than four times increase in its solubility than pure OM. DSC and XRD analyses indicated that the drug incorporated into OM-NS was in amorphous form. The morphology of OM-NS was found to be nearly spherical with high dispersity by scanning electron microscopic studies. The PK results showed that OM lyophilized nanosuspension (NS) exhibited improved PK properties compared to coarse powder suspension and marketed tablet powder suspension (TS). Oral bioavailability of lyophilized NS was increased by 2.45 and 2.25 folds when compared to marketed TS and coarse powder suspension, respectively. Results of this study lead to conclusion that NS approach was effective in preparing OM formulations with enhanced dissolution and improved oral bioavailability.
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Affiliation(s)
- K Nagaraj
- a Department of Pharmaceutical Sciences , Laboratory of Nanotechnology, University College of Pharmaceutical Sciences, Kakatiya University , Warangal , India
| | - D Narendar
- a Department of Pharmaceutical Sciences , Laboratory of Nanotechnology, University College of Pharmaceutical Sciences, Kakatiya University , Warangal , India
| | - V Kishan
- a Department of Pharmaceutical Sciences , Laboratory of Nanotechnology, University College of Pharmaceutical Sciences, Kakatiya University , Warangal , India
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223
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Malik T, Chauhan G, Rath G, Murthy RSR, Goyal AK. "Fusion and binding inhibition" key target for HIV-1 treatment and pre-exposure prophylaxis: targets, drug delivery and nanotechnology approaches. Drug Deliv 2017; 24:608-621. [PMID: 28240046 PMCID: PMC8241151 DOI: 10.1080/10717544.2016.1228717] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
More than 35 million people are living with HIV worldwide with approximately 2.3 million new infections per year. Cascade of events (cell entry, virus replication, assembly and release of newly formed virions) is involved in the HIV-1 transmission process. Every single step offers a potential therapeutic strategy to halt this progression and HIV fusion into the human host cell is one such stage. Controlling the initial event of HIV-1 transmission is the best way to control its dissemination especially when prophylaxis is concerned. Action is required either on the HIV’s or host’s cell surface which is logically more rational when compared with other intracellular acting moieties. Aim of this manuscript is to detail the significance and current strategies to halt this initial step, thus blocking the entry of HIV-1 for further infection. Both HIV-1 and the possible host cell’s receptors/co-receptors are under focus while specifying the targets available for inhibiting this fusion. Current and under investigation moieties are categorized based on their versatile mechanisms. Advanced drug delivery and nanotechnology approaches present a key tool to exploit the therapeutic potential in a boosted way. Current drug delivery and the impact of nanotechnology in potentiating this strategy are detailed.
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Affiliation(s)
- Tanushree Malik
- a DBT Lab, Indo Soviet Friendship College of Pharmacy , Moga , India and
| | - Gaurav Chauhan
- a DBT Lab, Indo Soviet Friendship College of Pharmacy , Moga , India and.,b Centre for Nanosciences, Department of Chemical Engineering, Indian Institute of Technology Kanpur , Kanpur , India
| | - Goutam Rath
- a DBT Lab, Indo Soviet Friendship College of Pharmacy , Moga , India and
| | - R S R Murthy
- a DBT Lab, Indo Soviet Friendship College of Pharmacy , Moga , India and
| | - Amit K Goyal
- a DBT Lab, Indo Soviet Friendship College of Pharmacy , Moga , India and
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B A, D N, Veerabrahma K. Development of olmesartan medoxomil lipid-based nanoparticles and nanosuspension: preparation, characterization and comparative pharmacokinetic evaluation. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:126-137. [PMID: 28290712 DOI: 10.1080/21691401.2017.1299160] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The aim was to enhance the oral bioavailability of olmesartan medoxomil (OM) by preparing solid lipid nanoparticles (SLNs) and comparing with nanosuspension (OM-NS). OM-SLNs and OM-NS were prepared by known methods. Prepared SLNs were evaluated for physical characters and in vivo pharmacokinetic (PK) performance in rats. OM-NS showed more than four-fold increase in the solubility. During DSC and XRD studies, drug incorporated in SLNs was found to be in amorphous form. The relative bioavailability of OM-SLN and OM-NS was 7.21- and 3.52-fold when compared with that of coarse suspension. Further, OM-SLNs also increased the oral bioavailability by two-fold over that of OM-NS.
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Affiliation(s)
- Arun B
- a Laboratory of Nanotechnology, Department of Pharmaceutical Sciences , University college of Pharmaceutical Sciences, Kakatiya University , Warangal , Telangana , India
| | - Narendar D
- a Laboratory of Nanotechnology, Department of Pharmaceutical Sciences , University college of Pharmaceutical Sciences, Kakatiya University , Warangal , Telangana , India
| | - Kishan Veerabrahma
- a Laboratory of Nanotechnology, Department of Pharmaceutical Sciences , University college of Pharmaceutical Sciences, Kakatiya University , Warangal , Telangana , India
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225
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Pal R. Viscosity-concentration relationships for nanodispersions based on glass transition point. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22810] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rajinder Pal
- Department of Chemical Engineering; University of Waterloo; Waterloo ON, N2L 3G1 Canada
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226
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Preparation and in-vitro/in-vivo characterization of trans-resveratrol nanocrystals for oral administration. Drug Deliv Transl Res 2017; 7:395-407. [DOI: 10.1007/s13346-017-0362-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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227
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Candesartan cilexetil loaded nanodelivery systems for improved oral bioavailability. Ther Deliv 2017; 8:79-88. [DOI: 10.4155/tde-2016-0063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Candesartan cilexetil (CC), an antihypertensive drug, has low oral bioavailability due to poor solubility and hepatic first-pass metabolism. These are major limitations in oral delivery of CC. Several approaches are known to reduce the problems of solubility and improve the bioavailability of CC. Among various approaches, nanotechnology-based delivery of CC has potential to overcome the challenges associated with the oral administration. This review focuses on various nano-based delivery systems available and tried for improving the aqueous solubility, dissolution and consequently bioavailability of CC upon oral administration. Of all, solid lipid nanoparticles appear to be promising delivery system, based on current reported results, for delivery of CC, as this system improved the oral bioavailability and possessed prolonged pharmacodynamic effect.
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228
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Antônio E, Antunes ODR, de Araújo IS, Khalil NM, Mainardes RM. Poly(lactic acid) nanoparticles loaded with ursolic acid: Characterization and in vitro evaluation of radical scavenging activity and cytotoxicity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:156-166. [PMID: 27987693 DOI: 10.1016/j.msec.2016.09.080] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 05/10/2016] [Accepted: 09/29/2016] [Indexed: 12/15/2022]
Abstract
The purpose of this study was to develop poly(lactic acid) (PLA) nanoparticles containing ursolic acid (UA) by an emulsification-solvent evaporation technique and evaluate the radical scavenging activity over hypochlorous acid (HOCl) and cytotoxicity over erythrocytes and tumor cells. Nanoparticles were successfully obtained and presented mean size of 246nm with spherical or slightly oval morphology, negative zeta potential and 96% of UA encapsulation efficiency. Analyses of FTIR, XRD and DSC-DTG suggest interaction/complexation of UA with PLA matrix and drug amorphization promoted by nanoencapsulation process. Stability study showed that room temperature was the best condition for nanoparticles storage. The in vitro release study showed UA was released from the polymeric matrix over two constants (α, β), suggesting a second order kinetics. After 120h of assay, 60% of UA were released by diffusion. In the HOCl scavenging activity, after 72h of assay UA-loaded nanoparticles presented the same efficacy of free drug. In cytotoxicity test over red blood cells, UA-loaded nanoparticles showed less toxicity on cells than free drug. The cytotoxicity assay over melanoma cells line (B16-F10) showed after 72h that nanoparticles were able to reduce the cell viability in 70%. PLA nanoparticles showed be potential carriers for UA maintaining the antioxidant and antitumor activity of the UA and decreasing its cytotoxicity over normal cells.
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Affiliation(s)
- Emilli Antônio
- Universidade Estadual do Centro-Oeste, Laboratory of Pharmaceutical Nanotechnology, Rua Simeão Camargo Varela de Sá 03, 85040-080 Guarapuava, PR, Brazil
| | - Osmar Dos Reis Antunes
- Universidade Estadual do Centro-Oeste, Laboratory of Pharmaceutical Nanotechnology, Rua Simeão Camargo Varela de Sá 03, 85040-080 Guarapuava, PR, Brazil
| | - Isis Souza de Araújo
- Universidade Estadual do Centro-Oeste, Laboratory of Pharmaceutical Nanotechnology, Rua Simeão Camargo Varela de Sá 03, 85040-080 Guarapuava, PR, Brazil
| | - Najeh Maissar Khalil
- Universidade Estadual do Centro-Oeste, Laboratory of Pharmaceutical Nanotechnology, Rua Simeão Camargo Varela de Sá 03, 85040-080 Guarapuava, PR, Brazil
| | - Rubiana Mara Mainardes
- Universidade Estadual do Centro-Oeste, Laboratory of Pharmaceutical Nanotechnology, Rua Simeão Camargo Varela de Sá 03, 85040-080 Guarapuava, PR, Brazil.
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229
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Analysis and optimization of drug solubility to improve pharmacokinetics. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2017. [DOI: 10.1007/s40005-016-0299-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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230
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Leung SSY, Wong J, Guerra HV, Samnick K, Prud’homme RK, Chan HK. Porous mannitol carrier for pulmonary delivery of cyclosporine A nanoparticles. AAPS JOURNAL 2017; 19:578-586. [DOI: 10.1208/s12248-016-0039-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 12/29/2016] [Indexed: 01/31/2023]
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231
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Lakshmipathy M, Nanda A. Nanosuspensions in Nanobiomedicine. PHARMACEUTICAL SCIENCES 2017. [DOI: 10.4018/978-1-5225-1762-7.ch049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The tremendous success in developing new nanomaterials and fostering technological innovation arises from the focus on interdisciplinary research and collaboration between physical and medical scientists. The concept of nano-medicine is one of the most important and exciting ideas ever generated by the applications of nanoscience. One of the most challenging tasks in the pharmaceutical industry is the formulation of poorly soluble drugs. The implication of conventional techniques for improving the solubility has gained limited success. Nanoparticles facilitate formulation with improved solubility and efficacy mainly through nanosuspension approach. Techniques such as media milling, high-pressure homogenization, and use of microemulsion have been used for production of nanosuspensions for a novel delivery system. Moreover, they are manoeuvred to patient-acceptable dosage forms like tablets, capsules, and lyophilized powder products. Nanosuspension technology has also been studied for active and passive targeted drug delivery systems, which the chapter highlights on various formulational perspectives and applications as a biomedicine delivery system.
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232
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Ultrafine clarithromycin nanoparticles via anti-solvent precipitation in subcritical water: Effect of operating parameters. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2016.09.073] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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233
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Sharma SK, Woldetsadik AD, Blanton T, O'Connor MJ, Magzoub M, Jagannathan R. Production of nanostructured molecular liquids by supercritical CO2 processing. OPENNANO 2017. [DOI: 10.1016/j.onano.2016.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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234
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Jog R, Burgess DJ. Pharmaceutical Amorphous Nanoparticles. J Pharm Sci 2017; 106:39-65. [DOI: 10.1016/j.xphs.2016.09.014] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 09/06/2016] [Accepted: 09/15/2016] [Indexed: 01/18/2023]
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235
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Nguyen VTA, De Pauw-Gillet MC, Sandre O, Gauthier M. Biocompatible Polyion Complex Micelles Synthesized from Arborescent Polymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:13482-13492. [PMID: 27993030 DOI: 10.1021/acs.langmuir.6b03683] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Water-dispersible polyion complex (PIC) micelles were prepared by the self-assembly of an arborescent polystyrene-graft-poly(2-vinylpyridine) copolymer (denoted G0PS-g-P2VP or G1) serving as core and a poly(acrylic acid)-block-poly(2-hydroxyethyl acrylate) (PAA-b-PHEA) double-hydrophilic block copolymer (DHBC) forming a shell. Varying the density of hydrophilic polymer chains in the stabilizing layer provided control over the size and structure of the entities obtained, from large flocculated species to stable isolated PIC micelles with diameters ranging from 42 to 67 nm. The hydrodynamic radius (determined from dynamic light scattering measurements), and the weight-average molar mass (M̅w) and radius of gyration of the scatterers (extracted from static multiangle light scattering data) evidenced the formation of either isolated or aggregated PIC micelles depending on the self-assembly conditions used (pH, concentration and mixing molar ratio f). Changes in the morphology of the arborescent copolymer after complexation were observed by atomic force microscopy (AFM) imaging. In particular, by varying the force applied with the AFM tip on the samples, the core-shell structure of the PIC micelles was clearly evidenced. The PIC micelles displayed no significant cytotoxicity toward mouse fibroblast L929 cells, a standard cell line recommended for toxicity assays, due to the good biocompatibility of the hydrophilic PAA-b-PHEA shell. In spite of a negative residual zeta potential due to an excess of negative charges, fluorescently labeled PIC* micelles were successfully internalized by L929 cells, as confirmed by laser scanning confocal microscopy (LSCM) and transmission electron microscopy (TEM).
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Affiliation(s)
- Vo Thu An Nguyen
- Univ. Bordeaux, LCPO, UMR 5629, F-33600 Pessac, France
- CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33600 Pessac, France
- Department of Chemistry, University of Waterloo , Waterloo, Ontario N2L 3G1, Canada
| | | | - Olivier Sandre
- Univ. Bordeaux, LCPO, UMR 5629, F-33600 Pessac, France
- CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33600 Pessac, France
| | - Mario Gauthier
- Department of Chemistry, University of Waterloo , Waterloo, Ontario N2L 3G1, Canada
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Nguyen DN, Clasen C, Van den Mooter G. Encapsulating darunavir nanocrystals within Eudragit L100 using coaxial electrospraying. Eur J Pharm Biopharm 2016; 113:50-59. [PMID: 27993734 DOI: 10.1016/j.ejpb.2016.12.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 11/07/2016] [Accepted: 12/04/2016] [Indexed: 10/20/2022]
Abstract
Electrospraying is renowned for its simplicity and versatility, and which can effectively produce particles with well-controlled size, size distribution, particle shape, morphology and microstructure at the nano/microscale. In this study, coaxial electrospraying was used to investigate its feasibility for preparing nanoparticles made up of nanocrystals encapsulated within a polymer shell. Firstly, aqueous nanosuspensions of darunavir were prepared by wet media milling. Then the nanosuspension and solutions of an enteric polymer, Eudragit L100, were used as the inner/core liquid and outer/shell liquid in a coaxial electrospraying setup, respectively. As long as a sufficiently high voltage was applied, a stable Taylor cone-jet mode was obtained to produce very fine core-shell structure nanoparticles with high darunavir encapsulation efficiency of approximately 90%. The influence of the starting nanosuspension and the flow rates on the characteristics of the final electrosprayed particles was also evaluated. Using an optimized nanosuspension with reasonable size, size distribution and flow rates, the enteric coating layer reduced the percentage of DRV release in acidic medium in the in vitro dissolution test to ca. 20%. This study indicates that coaxial electrospraying is a potential and unique technique for encapsulating drug nanocrystals within a polymeric shell.
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Affiliation(s)
- Duong Nhat Nguyen
- KU Leuven - University of Leuven, Department of Pharmaceutical and Pharmacological Sciences, Drug Delivery and Disposition, Leuven B-300, Belgium
| | - Christian Clasen
- KU Leuven - University of Leuven, Department of Chemical Engineering, Leuven B-3001, Belgium
| | - Guy Van den Mooter
- KU Leuven - University of Leuven, Department of Pharmaceutical and Pharmacological Sciences, Drug Delivery and Disposition, Leuven B-300, Belgium.
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237
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Jain A, Thakur D, Ghoshal G, Katare O, Singh B, Shivhare U. Formation and functional attributes of electrostatic complexes involving casein and anionic polysaccharides: An approach to enhance oral absorption of lycopene in rats in vivo. Int J Biol Macromol 2016; 93:746-756. [DOI: 10.1016/j.ijbiomac.2016.08.071] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 08/06/2016] [Accepted: 08/25/2016] [Indexed: 01/16/2023]
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238
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Yue P, Xiao M, Xie Y, Ma Y, Guan Y, Wu Z, Hu P, Wang Y. The Roles of Vitrification of Stabilizers/Matrix Formers for the Redispersibility of Drug Nanocrystals After Solidification: a Case Study. AAPS PharmSciTech 2016; 17:1274-1284. [PMID: 26689405 DOI: 10.1208/s12249-015-0461-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 11/30/2015] [Indexed: 11/30/2022] Open
Abstract
To elucidate the roles of vitrification of stabilizers/matrix formers for the redispersibility of drug nanocrystal powder after solidification at storage stress, the influence of different drying methods and storage stresses on stability of drug nanocrystals was systemically investigated. A poorly soluble drug, baicalin, used as model drug was converted into baicalin nanocrystals (BCN-NC). The residual moisture contents of BCN-NC were applied at two different stress conditions defined as "conservative" (<1%) and "aggressive" (>1%), respectively. The influence of different stabilizers, matrix formers, and storage stresses on the redispersibility of BCN-NC powder was systemically investigated, respectively. The results showed that storage stresses had significantly influence the redispersibility of BCN-NC. Aggressive storage temperature and residual moisture could be unfavorable factors for stability of drug nanocrystals, due to the exacerbation of aggregation of BCN-NC induced by vitrification. It was demonstrated that vitrification of spray-dried BCN-NC was dependent on temperature and time. The polymeric stabilizers hydroxypropylmethylcellulose (HPMC) and sodium carboxymethyl starch (CMS-Na) with high glass transition temperature (T g) played more important role in protecting the BCN-NC from breakage during storage, compared to the surfactants Tween 80, D-α-tocopherol acid polyethylene glycol 1000 succinate (TPGS), or RH 40. Besides, the polyvinylpyrrolidone K30 (PVP K30) and lactose with high T g were effective matrix formers for preserving the redispersibility of BCN-NC. It was concluded that the vitrification transition of stabilizers/matrix formers could be responsible for aggregation of drug nanocrystals during storage, which was a time-dependent process. The suitable residual moisture contents (RMC) and T g were very important for preserving the stability of drug nanocrystals during storage.
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239
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Shah SMH, Ullah F, Khan S, Shah SMM, de Matas M, Hussain Z, Minhas MU, AbdEl-Salam NM, Assi KH, Isreb M. Smart nanocrystals of artemether: fabrication, characterization, and comparative in vitro and in vivo antimalarial evaluation. Drug Des Devel Ther 2016; 10:3837-3850. [PMID: 27920499 PMCID: PMC5125812 DOI: 10.2147/dddt.s114962] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Artemether (ARTM) is a very effective antimalarial drug with poor solubility and consequently low bioavailability. Smart nanocrystals of ARTM with particle size of 161±1.5 nm and polydispersity index of 0.172±0.01 were produced in <1 hour using a wet milling technology, Dena® DM-100. The crystallinity of the processed ARTM was confirmed using differential scanning calorimetry and powder X-ray diffraction. The saturation solubility of the ARTM nanocrystals was substantially increased to 900 µg/mL compared to the raw ARTM in water (145.0±2.3 µg/mL) and stabilizer solution (300.0±2.0 µg/mL). The physical stability studies conducted for 90 days demonstrated that nanocrystals stored at 2°C-8°C and 25°C were very stable compared to the samples stored at 40°C. The nanocrystals were also shown to be stable when processed at acidic pH (2.0). The solubility and dissolution rate of ARTM nanocrystals were significantly increased (P<0.05) compared to those of its bulk powder form. The results of in vitro studies showed significant antimalarial effect (P<0.05) against Plasmodium falciparum and Plasmodium vivax. The IC50 (median lethal oral dose) value of ARTM nanocrystals was 28- and 54-fold lower than the IC50 value of unprocessed drug and 13- and 21-fold lower than the IC50 value of the marketed tablets, respectively. In addition, ARTM nanocrystals at the same dose (2 mg/kg) showed significantly (P<0.05) higher reduction in percent parasitemia (89%) against P. vivax compared to the unprocessed (27%), marketed tablets (45%), and microsuspension (60%). The acute toxicity study demonstrated that the LD50 value of ARTM nanocrystals is between 1,500 mg/kg and 2,000 mg/kg when given orally. This study demonstrated that the wet milling technology (Dena® DM-100) can produce smart nanocrystals of ARTM with enhanced antimalarial activities.
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Affiliation(s)
| | - Farhat Ullah
- Department of Pharmacy, University of Malakand, Chakdara, Pakistan
| | - Shahzeb Khan
- Department of Pharmacy, University of Malakand, Chakdara, Pakistan; Institute of Life Sciences Research, School of Pharmacy, University of Bradford, West Yorkshire
| | | | - Marcel de Matas
- SEDA Pharmaceutical Development Services, The BioHub at Alderley Park, Cheshire, UK
| | - Zahid Hussain
- Faculty of Pharmacy, Department of Pharmaceutics, Universiti Teknologi MARA, Selangor, Malaysia
| | - Muhammad Usman Minhas
- Faculty of Pharmacy & Alternative Medicine, The Islamia University of Bahawalpur Pakistan, Bahawalpur, Pakistan
| | | | - Khaled Hafez Assi
- Institute of Life Sciences Research, School of Pharmacy, University of Bradford, West Yorkshire
| | - Mohammad Isreb
- Institute of Life Sciences Research, School of Pharmacy, University of Bradford, West Yorkshire
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240
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Ma J, Yang Y, Sun Y, Sun J. Optimization, characterization and in vitro/vivo evaluation of azilsartan nanocrystals. Asian J Pharm Sci 2016; 12:344-352. [PMID: 32104345 PMCID: PMC7032236 DOI: 10.1016/j.ajps.2016.09.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 09/17/2016] [Accepted: 09/22/2016] [Indexed: 11/07/2022] Open
Abstract
Azilsartan (AZL), a poorly soluble drug, was considered to be fit for nanocrystals to improve its solubility. Our study intended to prepare AZL nanocrystals by means of bead milling method. Eight stabilizers or their binary combination and the milling time were set to be variable factors to optimize AZL nanosuspension formulation, and six types of freeze-drying supports were investigated to reduce the aggregation of particles during the solidification. AZL nanocrystals with or without sodium deoxycholate (NaDC) as combined stabilizer with Poloxamer 188 (F68) were prepared owning mean particle sizes of about 300 nm and 460 nm. During the screening processes, the formulation containing NaDC showed a smaller particle size and better stability during lyophilization. The irregular shape and crystal form changing in AZL nanocrystals were discovered by various characterizations. And with physical mixture as reference, nanocrystals showed its improvement about in-vitro dissolution and in-vivo bioavailability. In conclusion, the nanocrystals of AZL could be prepared well in our study. Additionally, our results suggested that NaDC was an appreciated excipient on the nanocrystals platform, which can exhibit the abilities of size-reduction and stability-maintaining on freeze-drying.
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Affiliation(s)
- Jingjing Ma
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Yinxian Yang
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Yinghua Sun
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Jin Sun
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
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241
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Zhu X, Liu C, Duan J, Liang X, Li X, Sun H, Kong D, Yang J. Synthesis of three-arm block copolymer poly(lactic- co-glycolic acid)-poly(ethylene glycol) with oxalyl chloride and its application in hydrophobic drug delivery. Int J Nanomedicine 2016; 11:6065-6077. [PMID: 27895480 PMCID: PMC5117906 DOI: 10.2147/ijn.s119446] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Synthesis of star-shaped block copolymer with oxalyl chloride and preparation of micelles to assess the prospect for drug-carrier applications. MATERIALS AND METHODS Three-arm star block copolymers of poly(lactic-co-glycolic acid) (3S-PLGA)-polyethylene glycol (PEG) were synthesized by ring-opening polymerization, then PEG as the hydrophilic block was linked to the terminal hydroxyl of 3S-PLGA with oxalyl chloride. Fourier-transform infrared (FT-IR) spectroscopy, gel-permeation chromatography (GPC), hydrogen nuclear magnetic resonance (1H-NMR) spectra, and differential scanning calorimetry were employed to identify the structure and properties of 3S-PLGA-PEG. Rapamycin (RPM)-loaded micelles were prepared by solvent evaporation, and pyrene was used as the fluorescence probe to detect the critical micelle concentration of the copolymer. The particle size, distribution, and ζ-potential of the micelles were determined by dynamic light scattering, and the morphology of the RPM-loaded micelles was analyzed by transmission electron microscopy. High-performance liquid chromatography was conducted to analyze encapsulation efficiency and drug-loading capacity, as well as the release behavior of RPM-loaded micelles. The biocompatibility of material and the cytostatic effect of RPM-loaded micelles were investigated by Cell Counting Kit 8 assay. RESULTS FT-IR, GPC, and 1H-NMR suggested that 3S-PLGA-PEG was successfully synthesized. The RPM-loaded micelles prepared with the 3S-PLGA-PEG possessed good properties. The micelles had good average diameter and encapsulation efficiency. For in vitro release, RPM was released slowly from 3S-PLGA-PEG micelles, showing that 3S-PLGA-PEG-RPM exhibited a better and longer antiproliferative effect than free RPM. CONCLUSION In this study, we first used oxalyl chloride as the linker to synthesize 3S-PLGA-PEG successfully, and compared with reported literature, this method shortened the reaction procedure and improved the reaction yield. The micelles prepared with this material proved suitable for drug-carrier application.
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Affiliation(s)
- Xiaowei Zhu
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
| | - Chao Liu
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
| | - Jianwei Duan
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
| | - Xiaoyu Liang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
| | - Xuanling Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
| | - Hongfan Sun
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
| | - Deling Kong
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
| | - Jing Yang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
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242
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Zhang L, Tan L, Chen L, Chen X, Long C, Peng J, Qian Z. A simple method to improve the stability of docetaxel micelles. Sci Rep 2016; 6:36957. [PMID: 27833135 PMCID: PMC5105067 DOI: 10.1038/srep36957] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 10/24/2016] [Indexed: 02/05/2023] Open
Abstract
Self-assembled polymeric micelles have been widely applied in drug delivery systems. In this study, we found that pH value of micellar system solution was the decisive factor of physical stability. Furthermore, the weak basic solution could maintain the solution clarification for a relative long time. To investigate the stability of polymeric micelles in different pH solutions, the micellar particle size and the docetaxel content remaining in solution were detected at predetermined time points. The crystallographic assay of freeze-drying powder was characterized by an X-ray diffractometer. In vitro release results indicated that the PBS had little influence on the sustained-release effect of docetaxel-loaded polymeric micelles (DPM). Besides, the safety of micellar formulation was determined by an MTT assay on HEK293 cells, and the anti-tumor activity was tested on MCF-7 cells. The results demonstrated that DPM adjusted with PBS (DPM (PBS)) was of low toxicity and maintained the effectiveness of docetaxel. In vivo antitumor results indicated that DPM (PBS) had better antitumor efficacy than common docetaxel injection (DTX). Thus it was concluded that regulation of micellar solution PH by PBS is a safe and effective method to improve the physical stability of DPM. It might promote the application of micellar formulation in clinical applications.
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Affiliation(s)
- Lan Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China.,Research and Development Department, Guangdong Zhongsheng Pharmacy, Dongguan, 523325, China
| | - LiWei Tan
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
| | - LiJuan Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
| | - XiaoXin Chen
- Research and Development Department, Guangdong Zhongsheng Pharmacy, Dongguan, 523325, China
| | - ChaoFeng Long
- Research and Development Department, Guangdong Zhongsheng Pharmacy, Dongguan, 523325, China
| | - JinRong Peng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
| | - ZhiYong Qian
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
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243
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Suri GS, Kaur A, Sen T. A recent trend of drug-nanoparticles in suspension for the application in drug delivery. Nanomedicine (Lond) 2016; 11:2861-2876. [PMID: 27759500 DOI: 10.2217/nnm-2016-0238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Persistent development in nanomedicine has enabled successful nanosizing of most drug samples which, in turn, imparts remarkable properties to the drugs such as enhanced solubility and bioavailability for the applications in drug delivery. In this context, several review articles are available in scientific domain covering inorganic nanoparticles such as Au, Ag, SPIONs, Qdots, carbon nanotubes and graphene; however, this review covers the development of drug nanoparticles together with their possibilities and limitation from fabrication (bottom up vs top down) to application in drug delivery during the last 5 years. In addition, some distinguished studies and novel drug particles are presented in order to contribute significantly toward the understanding of drug nanocrystals and its use in drug delivery.
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Affiliation(s)
- Gurpreet S Suri
- Nano-biomaterials Research Group, School of Physical Sciences & Computing, Centre of Materials Sciences, University of Central Lancashire, Preston, PR1 2HE, UK
| | - Amritvir Kaur
- Nano-biomaterials Research Group, School of Physical Sciences & Computing, Centre of Materials Sciences, University of Central Lancashire, Preston, PR1 2HE, UK
| | - Tapas Sen
- Nano-biomaterials Research Group, School of Physical Sciences & Computing, Centre of Materials Sciences, University of Central Lancashire, Preston, PR1 2HE, UK
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244
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Katla VM, Veerabrahma K. Cationic solid self micro emulsifying drug delivery system (SSMED) of losartan: Formulation development, characterization and in vivo evaluation. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.04.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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245
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Liu M, Hong C, Li G, Ma P, Xie Y. The generation of myricetin-nicotinamide nanococrystals by top down and bottom up technologies. NANOTECHNOLOGY 2016; 27:395601. [PMID: 27535365 DOI: 10.1088/0957-4484/27/39/395601] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Myricetin-nicotinamide (MYR-NIC) nanococrystal preparation methods were developed and optimized using both top down and bottom up approaches. The grinding (top down) method successfully achieved nanococrystals, but there were some micrometer range particles and aggregation. The key consideration of the grinding technology was to control the milling time to determine a balance between the particle size and distribution. In contrast, a modified bottom up approach based on a solution method in conjunction with sonochemistry resulted in a uniform MYR-NIC nanococrystal that was confirmed by powder x-ray diffraction, scanning electron microscopy, dynamic light scattering, and differential scanning calorimeter, and the particle dissolution rate and amount were significantly greater than that of MYR-NIC cocrystal. Notably, this was a simple method without the addition of any non-solvent. We anticipate our findings will provide some guidance for future nanococrystal preparation as well as its application in both chemical and pharmaceutical area.
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Affiliation(s)
- Mingyu Liu
- Research Center for Health and Nutrition, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China. Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
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246
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McClellan P, Landis WJ. Recent Applications of Coaxial and Emulsion Electrospinning Methods in the Field of Tissue Engineering. Biores Open Access 2016; 5:212-27. [PMID: 27610268 PMCID: PMC5003012 DOI: 10.1089/biores.2016.0022] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Electrospinning has emerged as an effective method of producing nanoscale fibers for use in multiple fields of study. One area of significant interest is nanofiber utilization for tissue engineering because the nanofibrous mats can mimic the native extracellular matrix of biological tissues. A logical next step is the inclusion of certain molecules and compounds to accelerate or increase the efficacy of tissue regeneration. Two methods are under scrutiny for their capability to encapsulate therapeutic compounds within electrospun nanofibers: emulsion and coaxial electrospinning. Both have advantages and disadvantages, which need to be taken into careful consideration when deciding to use them in a specific application. Several examples are provided here to highlight the vast potential of multilayered nanofibers as well as the emergence of new techniques to produce three-dimensional scaffolds of nanofibers for use in the field of tissue engineering.
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247
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Steiner D, Finke JH, Kwade A. Efficient production of nanoparticle-loaded orodispersible films by process integration in a stirred media mill. Int J Pharm 2016; 511:804-13. [PMID: 27477101 DOI: 10.1016/j.ijpharm.2016.07.058] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 07/15/2016] [Accepted: 07/25/2016] [Indexed: 11/19/2022]
Abstract
Orodispersible films possess a great potential as a versatile platform for nanoparticle-loaded oral dosage forms. In this case, poorly water-soluble organic materials were ground in a stirred media mill and embedded into a polymer matrix. The aim of this study was the shortening of this manufacturing process by the integration of several process steps into a stirred media mill without facing disadvantages regarding the film quality. Furthermore, this process integration is time conserving due to the high stress intensities provided in the mill and applicable for high solids contents and high suspension viscosities. Two organic materials, the model compound Anthraquinone and the active pharmaceutical ingredient Naproxen were investigated in this study. Besides the impact of the film processing on the crystallinity of the particles in the orodispersible film, a particle load of up to 50% was investigated with the new developed processing route. Additionally, a disintegration test was developed, combining an appropriate amount of saliva substitute and a clear endpoint determination. In summary, high nanoparticle loads in orodispersible films with good particle size preservation after film redispersion in water as well as a manufacturing of the film casting mass within a few minutes in a stirred media mill was achieved.
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Affiliation(s)
- Denise Steiner
- Institute for Particle Technology, Technische Universität Braunschweig, PVZ-Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Germany.
| | - Jan Henrik Finke
- Institute for Particle Technology, Technische Universität Braunschweig, PVZ-Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Germany
| | - Arno Kwade
- Institute for Particle Technology, Technische Universität Braunschweig, PVZ-Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Germany
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248
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Hong J, Li Y, Li Y, Xiao Y, Kuang H, Wang X. Annonaceous acetogenins nanosuspensions stabilized by PCL-PEG block polymer: significantly improved antitumor efficacy. Int J Nanomedicine 2016; 11:3239-53. [PMID: 27486323 PMCID: PMC4957684 DOI: 10.2147/ijn.s108143] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Annonaceous acetogenins (ACGs) have shown superior antitumor activity against a variety of cancer cell lines, but their clinical application has been limited by their poor solubility. In this study, ACGs-nanosuspensions (NSps) were successfully prepared by a precipitation ultrasonic method using monomethoxypoly (ethylene glycol)2000–poly (ε-caprolactone)2000 (mPEG2000–PCL2000) as a stabilizer. The resultant ACGs-NSps had a mean particle size of 123.2 nm, a zeta potential of −20.17 mV, and a high drug payload of 73.68%. ACGs-NSps were quite stable in various physiological solutions, and they exhibited sustained drug release. Compared to free drug, ACGs-NSps exhibited stronger cytotoxicity against 4T1, MCF-7, and HeLa cells. An in vivo real-time biodistribution investigation after labeling with 1,1′-dioctadecyltetramethyl indotricarbocyanine iodide, a noninvasive near-infrared fluorescence probe, demonstrated that ACGs-NSps could effectively accumulate in tumor. An in vivo antitumor activity study in 4T1 tumor-bearing mice revealed that ACGs-NSps achieved much better therapeutic efficacy than the traditional dosage form (oil solution) even at 1/10 of the dose (74.83% vs 45.53%, P<0.05), demonstrating that NSp was a good dosage form for ACGs to treat cancer.
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Affiliation(s)
- Jingyi Hong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing
| | - Yanhong Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing; School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, People's Republic of China
| | - Yijing Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing
| | - Yao Xiao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing; School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, People's Republic of China
| | - Haixue Kuang
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, People's Republic of China
| | - Xiangtao Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing
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249
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Steiner D, Finke JH, Breitung-Faes S, Kwade A. Breakage, temperature dependency and contamination of Lactose during ball milling in ethanol. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2016.05.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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250
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Starkloff WJ, Bucalá V, Palma SD, Gonzalez Vidal NL. Design and in vitro characterization of ivermectin nanocrystals liquid formulation based on a top-down approach. Pharm Dev Technol 2016; 22:809-817. [PMID: 27346432 DOI: 10.1080/10837450.2016.1200078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The aim of this study was to develop ivermectin (IVM) nanosuspensions (NSs) to improve the dissolution rate of this poorly water-soluble drug. Different NSs combining different stabilizers, i.e. poloxamer 188 (P188), polysorbate 80 (T80), polyvinylpyrrolidone (PVP), and sodium lauryl sulfate (SLS), were prepared by high-pressure homogenization. The stabilizers were selected based on the saturation solubility and IVM stability within 72 h. The screening of formulations was performed by considering the drug content within the nanosize range. The best formulation (IVM:T80:PVP 1:0.5:0.5 wt%) was characterized in terms of the particle size distribution, morphology, crystallinity, drug content, and in vitro dissolution profile. This NS was also evaluated from a stability point of view, by conditioning samples at a constant temperature and relative humidity for six months. The fresh and conditioned best NSs Z-sizes were 174.6 and 215.7 nm, respectively; while both NSs showed low polydispersity indexes. The faster dissolution rate for the IVM NS was attributed to the presence of nanoparticles and changes to the crystal structure (i.e. amorphization) that further improved solubility. The best NS had a 4-fold faster initial dissolution rate than raw IVM, and is thus a promising formulation for the treatment of human and animal parasitic diseases.
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Affiliation(s)
- Walter Javier Starkloff
- a Departamento de Biología, Bioquímica y Farmacia , Universidad Nacional del Sur (UNS) , Bahía Blanca , Argentina.,b Planta Piloto de Ingeniería Química (PLAPIQUI), UNS-CONICET , Bahía Blanca , Argentina
| | - Verónica Bucalá
- b Planta Piloto de Ingeniería Química (PLAPIQUI), UNS-CONICET , Bahía Blanca , Argentina
| | - Santiago Daniel Palma
- c Departamento de Farmacia, Facultad de Ciencias Químicas , Universidad Nacional de Córdoba, Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA) , Córdoba , Argentina
| | - Noelia L Gonzalez Vidal
- a Departamento de Biología, Bioquímica y Farmacia , Universidad Nacional del Sur (UNS) , Bahía Blanca , Argentina.,d Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) , Bahía Blanca , Argentina
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