1
|
In situ encapsulation of biologically active ingredients into polymer particles by polymerization in dispersed media. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2022.101637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
2
|
Maurya L, Singh S, Shah K, Dewangan HK. Dual Vinorelbine bitartrate and Resveratrol Loaded Polymeric Aqueous core Nanocapsules for Synergistic Efficacy in Breast Cancer. J Microencapsul 2022; 39:299-313. [PMID: 35470755 DOI: 10.1080/02652048.2022.2070679] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
AIM The current study focused on the development and evaluation of aqueous core nanocapsules (ACNs) as an effective carrier to deliver an optimal synergistic combination of a highly water soluble Vinorelbine bitartrate (VRL) and a poorly water-soluble Resveratrol (RES) for treatment of breast cancer. METHODS Various molar ratios of VRL to RES were screened against MCF-7 cell lines to determine the synergistic effects using Chou-Talalay method. Synergistic ratio of therapeutic agents was then incorporated into aqueous core nanocapsules utilizing a double emulsion solvent evaporation technique to yield dual drug loaded nanocapsules (dd-ACNs). The dd-ACNs were optimized using Box-Behnken design and characterized for physicochemical parameters such as particle size, zeta potential, polydispersity index, total drug content and encapsulation efficiency, surface morphology, drug excipient compatibility by FTIR and DSC, release kinetics, toxicity studies and anticancer efficacy (in-vitro and in-vivo). RESULTS Results demonstrated that the combination exhibited maximum synergy when higher doses of VRL were combined with smaller doses of RES (1:1, 5:1, and 10:1). The dual drug loaded ACNs were found to be stable and depicted a core-shell structure, narrow size range (150.2 ± 3.2 nm) with enhanced encapsulation (80% for VRL and 99% for RES). Moreover, the dd-ACNs were 5 times more efficacious in-vitro than a combination of free drugs, while reducing systemic toxicity. Also, pre-clinical evaluation of dd-ACNs also depicted drastic reduction of tumor volume as compared tp pristine VRL and physical combination of drugs. CONCLUSION The developed dd-ACNs can be applied as potential carrier for delivery of combination of chemotherapeutics at a synergistic ratio at tumor site.
Collapse
Affiliation(s)
- Lakshmi Maurya
- KIET School of Pharmacy, KIET Group of Institutions, Delhi-NCR, Meerut Road (NH-58), Ghaziabad-201206, India
| | - Sanjay Singh
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi- 221005, India
| | - Kamal Shah
- Institute of Pharmaceutical Research (IPR), GLA University, Mathura, NH-2 Mathura Delhi Road, PO- Chamuhan, Mathura, Uttar Pradesh-281406, India
| | - Hitesh Kumar Dewangan
- University Institute of Pharma Sciences (UIPS), Chandigarh University NH-95, Chandigarh Ludhiana Highway, Mohali- 160101, Punjab, India
| |
Collapse
|
3
|
Dabholkar N, Waghule T, Krishna Rapalli V, Gorantla S, Alexander A, Narayan Saha R, Singhvi G. Lipid shell lipid nanocapsules as smart generation lipid nanocarriers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
4
|
AbdElhamid AS, Zayed DG, Heikal L, Khattab SN, Mady OY, El-Gizawy SA, Elzoghby AO. Recent advances in polymer shell oily-core nanocapsules for drug-delivery applications. Nanomedicine (Lond) 2021; 16:1613-1625. [PMID: 34189946 DOI: 10.2217/nnm-2021-0037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Polymeric nanocapsules are vesicular drug-delivery systems composed of an inner oily reservoir surrounded by polymeric membranes. Nanocapsules have various advantages over other nanovesicular systems such as providing controlled drug release properties. We discuss the recent advances in polymeric shell oily-core nanocapsules, illustrating the different types of polymers used and their implementation. Nanocapsules can be utilized for many purposes, especially encapsulation of highly lipophilic drugs. They have been shown to have variable applications, especially in cancer therapy, due to the ability of the polymeric shell to direct the loaded drugs to their target sites, as well as their high internalization efficacy. Those productive applications guaranteed their high potential as drug-delivery systems. However, their clinical development is still in an early stage.
Collapse
Affiliation(s)
- Ahmed S AbdElhamid
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Dina G Zayed
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Lamia Heikal
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Sherine N Khattab
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt.,Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, 21321, Egypt
| | - Omar Y Mady
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Sanaa A El-Gizawy
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Ahmed O Elzoghby
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt.,Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| |
Collapse
|
5
|
Mehanna MM, Mneimneh AT. Formulation and Applications of Lipid-Based Nanovehicles: Spotlight on Self-emulsifying Systems. Adv Pharm Bull 2021; 11:56-67. [PMID: 33747852 PMCID: PMC7961215 DOI: 10.34172/apb.2021.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 03/31/2020] [Accepted: 04/19/2020] [Indexed: 12/31/2022] Open
Abstract
The drug delivery investigation field is continuously widened and adapted to overcome many factors such as poor drug solubility, absorption, rapid metabolism, the variability of drug plasma levels, cellular efflux and many others. Due to resemblance to body constituents and their biocompatibility, lipids offer a promising scheme for poorly water-soluble and lipophilic drugs. Various nanoparticles including vesicular systems, lipid particulate systems, and emulsion systems provide some unique benefits as pharmaceutical carriers in drug and biomolecules delivery systems. Nowadays synthesis is directed toward simple, costless techniques, therefore, self-emulsifying systems have gained superiority over the other carriers. Self nano-emulsifying systems composed of oil, surfactant, and co-surfactant emulsified upon contact with an aqueous medium, has been widely exploited. This review attempts to provide a comprehensive interpretation of different types of lipid-based carriers emphasizing on the self-nanoemulsifying system, why it is gaining interest, formulation, composition, and applications.
Collapse
Affiliation(s)
- Mohammed M Mehanna
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Amina Tarek Mneimneh
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| |
Collapse
|
6
|
Fressinaud C, Thomas O, Umerska AM, Saulnier P. Lipid Nanoparticles Vectorized with NFL-TBS.40-63 Peptide Target Oligodendrocytes and Promote Neurotrophin-3 Effects After Demyelination In Vitro. Neurochem Res 2020; 45:2732-2748. [PMID: 32910302 DOI: 10.1007/s11064-020-03122-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 08/01/2020] [Accepted: 08/30/2020] [Indexed: 12/13/2022]
Abstract
Promoting remyelination in multiple sclerosis is important to prevent axon degeneration, given the lack of curative treatment. Although some growth factors improve this repair, unspecific delivery to cells and potential side effects limit their therapeutic use. Thus, NFL-TBS.40-63 peptide (NFL)-known to enter specifically myelinating oligodendrocytes (OL)-was used to vectorize 100 nm diameter lipid nanoparticles (LNC), and the ability of NFL-LNC to specifically target OL from newborn rat brain was assessed in vitro. Specific uptake of DiD-labeled NFL-LNC by OL characterized by CNP and myelin basic protein was observed by confocal microscopy, as well as DiD colocalization with NFL and with Rab5-a marker of early endosomes. Unvectorized LNC did not significantly penetrate OL and there was no uptake of NFL-LNC by astrocytes. Canonical maturation of OL which extended compacted myelin-like membranes was observed by transmission electron microscopy in cells grown up to 9 days with NFL-LNC. Endocytosis of NFL-LNC appeared to depend on several pathways, as demonstrated by inhibitors. In addition, vectorized NFL-LNC adsorbed on neurotrophin-3 (NT-3) potentiated the proremyelinating effects of NT-3 after demyelination by lysophosphatidyl choline, allowing noticeably decreasing NT-3 concentration. Our results if they were confirmed in vivo suggest that NFL-vectorized LNC appear safe and could be considered as putative carriers for specific drug delivery to OL in order to increase remyelination.
Collapse
Affiliation(s)
- Catherine Fressinaud
- Neurology Department, University Hospital, 4 rue Larrey, 49933, Angers Cedex 9, France. .,MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France.
| | - Olivier Thomas
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
| | - Anita Monika Umerska
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
| | - Patrick Saulnier
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
| |
Collapse
|
7
|
Samith VD, Navarro S, Dabirian R. Morphological and Semi-empirical Study of the Pluronic F68/Imogolite/Sudan III Intersurfaces Composite for the Controlled Temperature Release of Hydrophobic Drugs. ACS OMEGA 2020; 5:20707-20723. [PMID: 32875204 PMCID: PMC7450501 DOI: 10.1021/acsomega.9b02965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 03/03/2020] [Indexed: 06/11/2023]
Abstract
Some PluronicF68 (F68) triblock copolymer properties demonstrate surprising applications in selective drug administration, such as the transportation of hydrophobic anti-inflammatories through epithelial barriers. Nuclear magnetic resonance (1H-NMR) spectroscopy was carried out for micelle precursor dispersions and F68 films modified with a synthetic imogolite (IMO) biocompatible hydrogel. Theoretical calculations and morphological assessment for the process of morphogenesis of dendritic crystallization were performed by molecular docking and atomic force microscopy (AFM) of the Sudan III-IMO-F68 composite, which was more hydrophobic than Sudan III-F68 and carried out the prolonged release of the Sudan III "drug" captured by a water-octanol interface determined by standard absorbance. Surface fusions were measured and compared to the unmodified matrix. However, despite the superior properties of the composite, the critical micelle concentration (CMC) was practically unmodified because solitary IMO strands attached to Sudan III formed Sudan III-IMO. These strands unraveled in a stable manner by expanding like a "spiderweb" in hydrophilic interfaces according to NMR analysis of the hydrogen one H1 polarization of Sudan III and F68 methyl, whose correlation relates hydrophobicity of Sudan III-IMO-F68 with dendrite properties from F68 concentrations. CMC and surface fusions equivalent to F68 surface properties, calculated by differential scanning calorimetry and dynamic Raman spectroscopy, were determined by AFM and high-resolution ellipsometry. Our results show highly specialized pharmacological applications since micelle surfaces expand, triggering maximum deliveries of "Drugs" from its interior to the physiological environment. The implanted sensor prototype determined equilibria reached Sudan III according to temperature (32-50 °C) and time it took to cross the membrane model 1-octanol (48 h). The findings suggest that the targested design of a F68-IMO-"Drug" would function as a microdevice for the prolonged release of hydrophobic drugs. In addition, the said microdevice could regenerate the damaged tissue in the central nervous system or other organs of the body. This is due to the fact that it could perform both tasks simultaneously, given the properties and characteristics acquired by the compatible material depending on the temperature of the physiological environment.
Collapse
Affiliation(s)
- Vicente D. Samith
- Departamento de
Química, Facultad de Ciencias, Universidad
de Chile, Las Palmeras 3425, Santiago 244355, Chile
- Institute for Medical
and Biological Engineering, Schools of Engineering, Biological Sciences
and Medicine, Pontificia Universidad Católica
de Chile, Santiago 7800003, Chile
| | - Sebastián Navarro
- Departamento de
Química, Facultad de Ciencias, Universidad
de Chile, Las Palmeras 3425, Santiago 244355, Chile
| | - Reza Dabirian
- Departamento de
Química, Facultad de Ciencias, Universidad
de Chile, Las Palmeras 3425, Santiago 244355, Chile
- Istituto per la Sintesi
Organica e la Fotoreattività, Consiglio
Nazionale delle Ricerche, Via Gobetti 101, 40129 Bologna, Italy
| |
Collapse
|
8
|
Moura RP, Pacheco C, Pêgo AP, des Rieux A, Sarmento B. Lipid nanocapsules to enhance drug bioavailability to the central nervous system. J Control Release 2020; 322:390-400. [PMID: 32247807 DOI: 10.1016/j.jconrel.2020.03.042] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 12/15/2022]
Abstract
The central nervous system (CNS), namely the brain, still remains as the hardest area of the human body to achieve adequate concentration levels of most drugs, mainly due to the limiting behavior of its physical and biological defenses. Lipid nanocapsules emerge as a versatile platform to tackle those barriers, and efficiently delivery different drug payloads due to their numerous advantages. They can be produced in a fast, solvent-free and scalable-up process, and their properties can be fine-tuned for to make an optimal brain drug delivery vehicle. Moreover, lipid nanocapsule surface modification can further improve their bioavailability towards the central nervous system. Coupling these features with alternative delivery methods that stem to disrupt or fully circumvent the blood-brain barrier may fully harness the therapeutic advance that lipid nanocapsules can supply to current treatment options. Thus, this review intends to critically address the development of lipid nanocapsules, as well as to highlight the key features that can be modulated to ameliorate their properties towards the central nervous system delivery, mainly through intravenous methods, and how the pathological microenvironment of the CNS can be taken advantage of. The different routes to promote drug delivery towards the brain parenchyma are also discussed, as well as the synergetic effect that can be obtained by combining modified lipid nanocapsules with new/smart administration routes.
Collapse
Affiliation(s)
- Rui Pedro Moura
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; CESPU - Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal
| | - Catarina Pacheco
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; CESPU - Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal
| | - Ana Paula Pêgo
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; FEUP - Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Anne des Rieux
- Université Catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Avenue E. Mounier 73, 1200 Brussels, Belgium
| | - Bruno Sarmento
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; CESPU - Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal.
| |
Collapse
|
9
|
Loukanov A, Nikolova S, Filipov C, Nakabayashi S. Nanomaterials for cancer medication: from individual nanoparticles toward nanomachines and nanorobots. PHARMACIA 2019. [DOI: 10.3897/pharmacia.66.e37739] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The nanomaterials for cancer medication are already reality providing a wide range of new tools and possibilities, from earlier diagnostics and improved imaging to better, more efficient, and more targeted anticancer therapies. The purpose of this critical review is to focus on the current use of clinically approved nanoparticles for cancer theranostic, nanovaccines and delivery platforms for gene therapy. These include inorganic, metal and polymer nanoparticles, nanocrystals and varieties of drug delivery nanosystems (micelles, liposomes, microcapsules and etc.). The recent progress in cancer nanomedicine enables to combine the benefits of individual nanoparticles with biomolecules into a multifunction nanomachines and even highly advanced nanorobots for targeted therapies. Nowadays clinical trials with advanced anticancer nanomachines provide potential for more accurately and effective identification and destruction of the cancer cells present in the human body.
Collapse
|
10
|
Rapid Serum-Free Isolation of Oligodendrocyte Progenitor Cells from Adult Rat Spinal Cord. Stem Cell Rev Rep 2018; 13:499-512. [PMID: 28509260 DOI: 10.1007/s12015-017-9742-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Oligodendrocyte progenitor cells (OPCs) play a pivotal role in both health and disease within the central nervous system, with oligodendrocytes, arising from resident OPCs, being the main myelinating cell type. Disruption in OPC numbers can lead to various deleterious health defects. Numerous studies have described techniques for isolating OPCs to obtain a better understanding of this cell type and to open doors for potential treatments of injury and disease. However, the techniques used in the majority of these studies involve several steps and are time consuming, with current culture protocols using serum and embryonic or postnatal cortical tissue as a source of isolation. We present a primary culture method for the direct isolation of functional adult rat OPCs, identified by neuron-glial antigen 2 (NG2) and platelet derived growth factor receptor alpha (PDGFrα) expression, which can be obtained from the adult spinal cord. Our method uses a simple serum-free cocktail of 3 growth factors - FGF2, PDGFAA, and IGF-I, to expand adult rat OPCs in vitro to 96% purity. Cultured cells can be expanded for at least 10 passages with very little manipulation and without losing their phenotypic progenitor cell properties, as shown by immunocytochemistry and RT-PCR. Cultured adult rat OPCs also maintain their ability to differentiate into GalC positive cells when incubated with factors known to stimulate their differentiation. This new isolation method provides a new source of easily accessible adult stem cells and a powerful tool for their expansion in vitro for studies aimed at central nervous system repair.
Collapse
|
11
|
Gonçalves A, Nikmaram N, Roohinejad S, Estevinho BN, Rocha F, Greiner R, McClements DJ. Production, properties, and applications of solid self-emulsifying delivery systems (S-SEDS) in the food and pharmaceutical industries. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.10.076] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
12
|
Santalices I, Gonella A, Torres D, Alonso MJ. Advances on the formulation of proteins using nanotechnologies. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.06.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
13
|
Highly sensitive colorimetric aptasensor for ochratoxin A detection based on enzyme-encapsulated liposome. Anal Chim Acta 2017; 1002:90-96. [PMID: 29306417 DOI: 10.1016/j.aca.2017.11.061] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/17/2017] [Accepted: 11/24/2017] [Indexed: 12/21/2022]
Abstract
A simple, low-cost, and sensitive liposome-based colorimetric aptasensor has been developed to detect ochratoxin A (OTA). Specifically, a dumbbell-shaped probe was designed, including magnetic beads (MBs), double-stranded DNA (dsDNA), and enzyme-encapsulated liposome. The dsDNA formed by the hybridization between OTA aptamer and its complementary probe. And the dsDNA was used to contact the MBs and the enzyme-encapsulated liposome. In the presence of OTA, the aptamer preferred to combine with OTA to form G-quadruplex, resulting in the release of the detection probe and the enzyme-encapsulated liposome. Each liposome contained a large amount of HRP. Thus, when the liposome was lysed by adding the mixed solution of 3,3',5,5'-tetramethylbenzidine (TMB) and H2O2, a large number of HRP were released. HRP could catalyze the H2O2-mediated oxidation of TMB and hence resulted in the color change from colorless to blue with the OTA concentration varying, and this variation can be observed by naked eyes easily. The result showed that the absorption intensity at 652 nm enhanced with the increase of OTA concentration ranging from 0.05 to 2.0 ng mL-1, and the limit of detection was calculated to be 0.023 ng mL-1 (S/N = 3). The developed colorimetric aptasensor has been applied to detect OTA concentration in corn samples with satisfied results.
Collapse
|
14
|
Heydari S, Ghanbarzadeh S, Anoush B, Ranjkesh M, Javadzadeh Y, Kouhsoltani M, Hamishehkar H. Nanoethosomal formulation of gammaoryzanol for skin-aging protection and wrinkle improvement: a histopathological study. Drug Dev Ind Pharm 2017; 43:1154-1162. [PMID: 28277843 DOI: 10.1080/03639045.2017.1300169] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Free radical scavengers and antioxidants, with the main focus on enhanced targeting to the skin layers, can provide protection against skin ageing. OBJECTIVE The aim of the present study was to prepare nanoethosomal formulation of gammaoryzanol (GO), a water insoluble antioxidant, for its dermal delivery to prevent skin aging. METHODS Nanoethosomal formulation was prepared by a modified ethanol injection method and characterized by using laser light scattering, scanning electronic microscope (SEM) and X-ray diffraction (XRD) techniques. The effects of formulation parameters on nanoparticle size, encapsulation efficiency percent (EE%) and loading capacity percent (LC%) were investigated. Antioxidant activity of GO-loaded formulation was investigated in vitro using normal African green monkey kidney fibroblast cells (Vero). The effect of control and GO-loaded nanoethosomal formulation on superoxide dismutase (SOD) and malondialdehyde (MDA) content of rat skin was also probed. Furthermore, the effect of GO-loaded nanoethosomes on skin wrinkle improvement was studied by dermoscopic and histological examination on healthy humans and UV-irradiated rats, respectively. RESULTS The optimized nanoethosomal formulation showed promising characteristics including narrow size distribution 0.17 ± 0.02, mean diameter of 98.9 ± 0.05 nm, EE% of 97.12 ± 3.62%, LC% of 13.87 ± 1.36% and zeta potential value of -15.1 ± 0.9 mV. The XRD results confirmed uniform drug dispersion in the nanoethosomes structure. In vitro and in vivo antioxidant studies confirmed the superior antioxidant effect of GO-loaded nanoethosomal formulation compared with control groups (blank nanoethosomes and GO suspension). CONCLUSIONS Nanoethosomes was a promising carrier for dermal delivery of GO and consequently had superior anti-aging effect.
Collapse
Affiliation(s)
- Saman Heydari
- a Institute for Stem Cell and Regenerative Medicine and Students' Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Saeed Ghanbarzadeh
- b Zanjan Pharmaceutical Nanotechnology Research Center and Department of Pharmaceutics, Faculty of Pharmacy , Zanjan University of Medical Sciences , Zanjan , Iran
| | - Behzad Anoush
- c Dermatology & Dermopharmacy Research Team and Department of Dermatology, Sina Hospital , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Mohammadreza Ranjkesh
- c Dermatology & Dermopharmacy Research Team and Department of Dermatology, Sina Hospital , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Yousef Javadzadeh
- d Biotechnology Research Center and Faculty of Pharmacy , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Maryam Kouhsoltani
- e Department of Oral & Maxillofacial Pathology, Faculty of Dentistry , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Hamed Hamishehkar
- f Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran
| |
Collapse
|
15
|
Lipid-based nanocarriers for oral peptide delivery. Adv Drug Deliv Rev 2016; 106:337-354. [PMID: 27080735 DOI: 10.1016/j.addr.2016.04.001] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 03/30/2016] [Accepted: 04/03/2016] [Indexed: 12/23/2022]
Abstract
This article is aimed to overview the lipid-based nanostructures designed so far for the oral administration of peptides and proteins, and to analyze the influence of their composition and physicochemical (particle size, zeta potential) and pharmaceutical (drug loading and release) properties, on their interaction with the gastro-intestinal environment, and the subsequent PK/PD profile of the associated drugs. The ultimate goal has been to highlight and comparatively analyze the key factors that may be determinant of the success of these nanocarriers for oral peptide delivery. The article ends with some prospects on the challenges to be addressed for the intended commercial success of these delivery vehicles.
Collapse
|
16
|
NFL-lipid nanocapsules for brain neural stem cell targeting in vitro and in vivo. J Control Release 2016; 238:253-262. [DOI: 10.1016/j.jconrel.2016.08.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/02/2016] [Accepted: 08/04/2016] [Indexed: 12/15/2022]
|
17
|
Nanocarriers for the treatment of glioblastoma multiforme: Current state-of-the-art. J Control Release 2016; 227:23-37. [PMID: 26892752 DOI: 10.1016/j.jconrel.2016.02.026] [Citation(s) in RCA: 158] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 02/12/2016] [Accepted: 02/13/2016] [Indexed: 01/26/2023]
Abstract
Glioblastoma multiforme, a grade IV glioma, is the most frequently occurring and invasive primary tumor of the central nervous system, which causes about 4% of cancer-associated-deaths, making it one of the most fatal cancers. With present treatments, using state-of-the-art technologies, the median survival is about 14 months and 2 year survival rate is merely 3-5%. Hence, novel therapeutic approaches are urgently necessary. However, most drug molecules are not able to cross the blood-brain barrier, which is one of the major difficulties in glioblastoma treatment. This review describes the features of blood-brain barrier, and its anatomical changes with different stages of tumor growth. Moreover, various strategies to improve brain drug delivery i.e. tight junction opening, chemical modification of the drug, efflux transporter inhibition, convection-enhanced delivery, craniotomy-based drug delivery and drug delivery nanosystems are discussed. Nanocarriers are one of the highly potential drug transport systems that have gained huge research focus over the last few decades for site specific drug delivery, including drug delivery to the brain. Properly designed nanocolloids are capable to cross the blood-brain barrier and specifically deliver the drug in the brain tumor tissue. They can carry both hydrophilic and hydrophobic drugs, protect them from degradation, release the drug for sustained period, significantly improve the plasma circulation half-life and reduce toxic effects. Among various nanocarriers, liposomes, polymeric nanoparticles and lipid nanocapsules are the most widely studied, and are discussed in this review. For each type of nanocarrier, a general discussion describing their composition, characteristics, types and various uses is followed by their specific application to glioblastoma treatment. Moreover, some of the main challenges regarding toxicity and standardized evaluation techniques are narrated in brief.
Collapse
|
18
|
Poltorak K, Durand A, Léonard M, Six JL, Nouvel C. Interfacial click chemistry for improving both dextran shell density and stability of biocompatible nanocapsules. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.07.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
19
|
Djekic L, Krajisnik D, Micic Z. Polyphenolics-Phospholipid Complexes as Natural Cosmetic Ingredients: Properties and Application. TENSIDE SURFACT DET 2015. [DOI: 10.3139/113.110364] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Phospholipids and polyphenolic phytoconstituents may form specific molecular complexes (polyphenolics-phospholipid complexes, phyto-phospholipid complexes) with definite chemical structure, solubility, thermal and spectroscopic characteristics. Furthermore, such specific molecular entities may self-associate into spherical unilamellar vesicles (phyto-vesicles, herbosomes) with size at nano- or microscale. Phyto-phospholipid complexation was recognised as a promising strategy to improve formulation performances and enhance efficiency of herbal polyphenolics with cosmetic relevance in comparison with pure phytoconstituents. This concise review summarizes the current knowledge on preparation methods, physico-chemical properties and aspects of application of the selected phyto-complexes as cosmetic active ingredients.
Collapse
Affiliation(s)
- Ljiljana Djekic
- University of Belgrade – Faculty of Pharmacy , Department of Pharmaceutical technology and Cosmetology, Belgrade , Serbia
| | - Danina Krajisnik
- University of Belgrade – Faculty of Pharmacy , Department of Pharmaceutical technology and Cosmetology, Belgrade , Serbia
| | - Zorica Micic
- Evropa lek d.o.o./GlaxoSmithKline Export Ltd. Representative Office , Belgrade , Serbia
| |
Collapse
|
20
|
Momoh MA, Esimone CO. Phospholipon 90H (P90H)-based PEGylated microscopic lipospheres delivery system for gentamicin: an antibiotic evaluation. Asian Pac J Trop Biomed 2015; 2:889-94. [PMID: 23569866 DOI: 10.1016/s2221-1691(12)60248-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 08/21/2012] [Accepted: 11/28/2012] [Indexed: 10/28/2022] Open
Abstract
OBJECTIVE To formulate gentamicin liposphere by solvent-melting method using lipids and polyethylene glycol 4 000 (PEG-4 000) for oral administration. METHODS Gentamicin lipospheres were prepared by melt-emulsification using 30% w/w Phospholipon® 90H in Beeswax as the lipid matrix containing PEG-4 000. These lipospheres were characterized by evaluating on encapsulation efficiency, loading capacity, change in pH and the release profile. Antimicrobial activities were evaluated against Escherichia coli, Pseudomonas aeruginosa, Salmonella paratyphii and Staphylococcus aureus using the agar diffusion method. RESULTS Photomicrographs revealed spherical particles within a micrometer range with minimal growth after 1 month. The release of gentamicin in vitro varied widely with the PEG-4 000 contents. Moreover, significant (P>0.05) amount of gentamicin was released in vivo from the formulation. The encapsulation and loading capacity were all high, indicating the ability of the lipids to take up the drug. The antimicrobial activities were very high especially against Pseudomonas compare to other test organisms. This strongly suggested that the formulation retain its bioactive characteristics. CONCLUSIONS This study strongly suggest that the issue of gentamicin stability and poor absorption in oral formulation could be adequately addressed by tactical engineering of lipid drug delivery systems such as lipospheres.
Collapse
Affiliation(s)
- Mumuni Audu Momoh
- Drug Delivery Research Unit, Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria
| | | |
Collapse
|
21
|
Carbone C, Musumeci T, Lauro M, Puglisi G. Eco-friendly aqueous core surface-modified nanocapsules. Colloids Surf B Biointerfaces 2015; 125:190-6. [DOI: 10.1016/j.colsurfb.2014.11.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 11/21/2014] [Accepted: 11/24/2014] [Indexed: 12/15/2022]
|
22
|
Resnier P, LeQuinio P, Lautram N, André E, Gaillard C, Bastiat G, Benoit JP, Passirani C. Efficient in vitro gene therapy with PEG siRNA lipid nanocapsules for passive targeting strategy in melanoma. Biotechnol J 2014; 9:1389-401. [PMID: 25262914 DOI: 10.1002/biot.201400162] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 07/28/2014] [Accepted: 09/18/2014] [Indexed: 12/30/2022]
Abstract
Small interfering RNA (siRNA)-mediated gene therapy is a promising strategy to temporarily inhibit the expression of proteins implicated in carcinogenesis or chemotherapy resistance. Although intra-tumoral administration can be envisaged, studies currently focus on formulating nanomedicines for intravenous injection to target tumor sites as well as metastases. The development of synthetic nanoparticles and liposomes has advanced greatly during the last decade. The objective of this work consists in formulating and optimizing the encapsulation of siRNA into lipid nanocapsules (LNCs) for efficient gene therapy to target melanoma cells. SiRNA LNCs were prepared from DOTAP/DOPE lipoplexes, and the siRNA amount and lipid/siRNA charge ratio were assayed to improve the stability and the encapsulation yield. Cryo-TEM imaging of the siRNA lipoplexes and LNC morphology revealed specific organization of the siRNA DOTAP/DOPE lipoplexes as well as specific lipid microstructures that can be eliminated by purification. No cytotoxicity of the siRNA LNCs against the melanoma SK-Mel28 cell line was observed at concentrations of up to 500 ng/mL siRNA. In vitro siRNA transfection experiments, compared to Oligofectamine™, demonstrated interesting targeted gene silencing effects. Finally, complement activation assays confirmed the feasibility of the PEGylation of siRNA LNCs as part of a passive targeting strategy for future in vivo melanoma- and metastasis-targeting experiments.
Collapse
Affiliation(s)
- Pauline Resnier
- PRES LUNAM, Universit é d'Angers, Angers, France; INSERM, Micro et Nanomédecines Biomimétiques, Angers, France
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Szczepanowicz K, Warszyński P. Magnetically responsive liquid core polyelectrolyte nanocapsules. J Microencapsul 2014; 32:123-8. [DOI: 10.3109/02652048.2014.950709] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
24
|
Moysan E, González-Fernández Y, Lautram N, Béjaud J, Bastiat G, Benoit JP. An innovative hydrogel of gemcitabine-loaded lipid nanocapsules: when the drug is a key player of the nanomedicine structure. SOFT MATTER 2014; 10:1767-1777. [PMID: 24652455 DOI: 10.1039/c3sm52781f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new method to form a nanoparticle-structured hydrogel is reported; it is based on the drug being loaded into the nanoparticles to form a solid structure. A lipophilic form of gemcitabine (modified lauroyl), an anti-cancer drug, was encapsulated in lipid nanocapsules (LNCs), using a phase-inversion temperature process. A gel was formed spontaneously, depending on the LNC concentration. The drug loading, measured with total entrapment efficiency, and the rheological properties of the gel were assessed. Physical studies (surface tension measurements) showed that modified gemcitabine was localised at the oil-water interface of the LNC, and that the gemcitabine moieties of the prodrug were exposed to the water phase. This particular assembly promoted inter-LNC interactions via hydrogen bonds between gemcitabine moieties that led to an LNC gel structure in water, without a matrix, like a tridimensional pearl necklace. Dilution of the gel produced a gemcitabine-loaded LNC suspension in water, and these nanoparticles presented cytotoxic activity to various cancer cell lines to a greater degree than the native drug. Finally, the syringeability of the formulation was successfully tested and perspectives of its use as a nanomedicine (intratumoural or subcutaneous injection) can be foreseen.
Collapse
Affiliation(s)
- Elodie Moysan
- LUNAM Université - Micro et Nanomédecines Biomimétiques, Université d'Angers - UMR_S1066 (MINT), IBS-CHU Angers, 4 rue Larrey, F-49933 Angers, France.
| | | | | | | | | | | |
Collapse
|
25
|
Thanki K, Gangwal RP, Sangamwar AT, Jain S. Oral delivery of anticancer drugs: Challenges and opportunities. J Control Release 2013; 170:15-40. [DOI: 10.1016/j.jconrel.2013.04.020] [Citation(s) in RCA: 330] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 04/25/2013] [Accepted: 04/26/2013] [Indexed: 12/12/2022]
|
26
|
Strategies for the design of orally bioavailable antileishmanial treatments. Int J Pharm 2013; 454:539-52. [PMID: 23871737 DOI: 10.1016/j.ijpharm.2013.07.035] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 07/08/2013] [Accepted: 07/10/2013] [Indexed: 12/21/2022]
Abstract
Leishmaniasis is one of the six major tropical diseases targeted by the World Health Organization. The most serious, life-threatening form is visceral leishmaniasis (VL). No vaccine is yet available for human use and chemotherapy is the main mean of dealing with this disease. This review focuses on the development of drug delivery systems (DDS) for treatment of leishmaniasis. After an overview of the significance of leishmaniasis in 2013, current chemotherapy and its limitations are considered, leading to possible strategies to improve the treatment of VL: new drugs, combinations of existing drugs and DDS, particularly for oral administration. Nanostructured biomaterials such as lipid-based or polymeric nanoparticles have unique physicochemical properties, ultra-small and controllable size, large surface area to mass ratio and the possibility of surface modification which can be used to advantage for the oral administration of antileishmanial drugs. They can improve the rate of dissolution of poorly water-soluble drugs, increase intestinal residence time by bioadhesion and, especially when lipid additives are used, influence the route and efficiency of absorption. These recent advances in this very active field should lead to better management of this serious disease.
Collapse
|
27
|
Vrignaud S, Anton N, Passirani C, Benoit JP, Saulnier P. Aqueous core nanocapsules: a new solution for encapsulating doxorubicin hydrochloride. Drug Dev Ind Pharm 2013; 39:1706-11. [DOI: 10.3109/03639045.2012.730526] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
28
|
Maali A, Mosavian MTH. Preparation and Application of Nanoemulsions in the Last Decade (2000–2010). J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2011.648498] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
29
|
Lipid nanocapsule-based gels for enhancement of transdermal delivery of ketorolac tromethamine. JOURNAL OF DRUG DELIVERY 2011; 2011:571272. [PMID: 22175029 PMCID: PMC3228290 DOI: 10.1155/2011/571272] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 09/06/2011] [Indexed: 11/17/2022]
Abstract
Previous reports show ineffective transdermal delivery of ketorolac by nanostructured lipid carriers (NLCs). The aim of the present work was enhancement of transdermal delivery of ketorolac by another colloidal carriers, lipid nanocapsules (LNCs). LNCs were prepared by emulsification with phase transition method and mixed in a Carbomer 934P gel base with oleic acid or propylene glycol as penetration enhancers. Permeation studies were performed by Franz diffusion cell using excised rat abdominal skin. Aerosil-induced rat paw edema model was used to investigate the in vivo performance. LNCs containing polyethylene glycol hydroxyl stearate, lecithin in Labrafac as the oily phase, and dilution of the primary emulsion with 3.5-fold volume of cold water produced the optimized nanoparticles. The 1% Carbomer gel base containing 10% oleic acid loaded with nanoparticles enhanced and prolonged the anti-inflammatory effects of this drug to more than 12 h in Aerosil-induced rat paw edema model.
Collapse
|
30
|
Strategies for the nanoencapsulation of hydrophilic molecules in polymer-based nanoparticles. Biomaterials 2011; 32:8593-604. [DOI: 10.1016/j.biomaterials.2011.07.057] [Citation(s) in RCA: 207] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 07/17/2011] [Indexed: 11/20/2022]
|
31
|
Vrignaud S, Anton N, Gayet P, Benoit JP, Saulnier P. Reverse micelle-loaded lipid nanocarriers: A novel drug delivery system for the sustained release of doxorubicin hydrochloride. Eur J Pharm Biopharm 2011; 79:197-204. [DOI: 10.1016/j.ejpb.2011.02.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 02/14/2011] [Accepted: 02/15/2011] [Indexed: 10/18/2022]
|
32
|
Abdel-Mottaleb MMA, Neumann D, Lamprecht A. Lipid nanocapsules for dermal application: a comparative study of lipid-based versus polymer-based nanocarriers. Eur J Pharm Biopharm 2011; 79:36-42. [PMID: 21558002 DOI: 10.1016/j.ejpb.2011.04.009] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 04/14/2011] [Accepted: 04/19/2011] [Indexed: 10/18/2022]
Abstract
Lipid nanocapsules (LNC) are colloidal carriers providing controlled release profiles and improved bioavailability for many drug substances and diverse administration routes. However, they have not been explored before for transdermal application. Here, we study the behavior of LNC as a transdermal drug delivery system using ibuprofen as a model drug. A comparison to other lipid nanocarriers such as solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) and polymeric nanocarriers has been made. It was found that LNC could increase the flux rate of ibuprofen 21.9±0.5 compared to 5.8±0.4 μg/cm(2)h in case of drug solution. Similar flux rates were obtained for SLN and NLC with average values of 22.9±0.5 and 22.5±2.0 μg/cm(2)h, respectively. On the other side, comparison to polymeric nanoparticles showed that the polymer-based carriers of the same particle size had lower permeation-enhancing effect with a flux rate of 10.62±1.84 μg/cm(2)h. Polymeric carriers had fourfold higher accumulation in the skin compared to that of the LNC and twice the accumulation of SLN and NLC. These results would suggest that the LNC can be considered as efficient as SLN and NLC for the transdermal drug delivery while polymeric nanoparticles are more suitable for localized drug delivery to the skin.
Collapse
Affiliation(s)
- Mona M A Abdel-Mottaleb
- Laboratory of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Bonn, Germany.
| | | | | |
Collapse
|
33
|
Mu B, Liu P, Du P, Dong Y, Lu C. Magnetic-targeted pH-responsive drug delivery system via layer-by-layer self-assembly of polyelectrolytes onto drug-containing emulsion droplets and its controlled release. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24623] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
34
|
Iodinated blood pool contrast media for preclinical X-ray imaging applications – A review. Biomaterials 2010; 31:6249-68. [DOI: 10.1016/j.biomaterials.2010.04.066] [Citation(s) in RCA: 197] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Accepted: 04/29/2010] [Indexed: 11/23/2022]
|
35
|
In vitro drug release mechanism from lipid nanocapsules (LNC). Int J Pharm 2010; 390:208-13. [DOI: 10.1016/j.ijpharm.2010.02.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Revised: 01/30/2010] [Accepted: 02/02/2010] [Indexed: 11/18/2022]
|
36
|
Abstract
Recent advances in biotechnology demonstrate that peptides and proteins are the basis of a new generation of drugs. However, the transportation of protein drugs in the body is limited by their high molecular weight, which prevents the crossing of tissue barriers, and by their short lifetime due to immuno response and enzymatic degradation. Moreover, the ability to selectively deliver drugs to target organs, tissues or cells is a major challenge in the treatment of several human diseases, including cancer. Indeed, targeted delivery can be much more efficient than systemic application, while improving bioavailability and limiting undesirable side effects. This review describes how the use of targeted nanocarriers such as nanoparticles and liposomes can improve the pharmacokinetic properties of protein drugs, thus increasing their safety and maximizing the therapeutic effect.
Collapse
|