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Ortiz-Islas E, Ponce-Juárez A, Tzompantzi-Morales F, Manríquez-Ramírez M, Rubio C, Calvillo-Velasco M, Chávez-Cortes G, Missirlis F, Rubio-Osornio M. Formation of intraneuronal iron deposits following local release from nanostructured silica injected into rat brain parenchyma. Heliyon 2024; 10:e27786. [PMID: 38524581 PMCID: PMC10958361 DOI: 10.1016/j.heliyon.2024.e27786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 03/06/2024] [Accepted: 03/06/2024] [Indexed: 03/26/2024] Open
Abstract
Nanostructured materials with controllable properties have been used to cage and release various types of compounds. In the present study, iron-loaded nanostructured sol-gel SiO2-Fe materials were prepared and injected into the rat brain to develop a method for gradual iron delivery into the neurons with the aims to avoid acute iron toxicity and develop an animal model of gradual, metal-induced neurodegeneration. Nanoparticles were prepared by the traditional method of hydrolysis and condensation reactions of tetraethyl orthosilicate at room temperature and subsequent heat treatment at 200 °C. FeSO4 was added in situ during the silica preparation. The resulting materials were characterized by UV-VIS and infrared spectroscopies, X-ray diffraction, and N2 adsorption-desorption. An in vitro ferrous sulfate release test was carried out in artificial cerebrospinal fluid as the release medium showing successful ferrous sulfate loading on nanostructured silica and sustained iron release during the test time of 10 h. Male Wistar rats administered with SiO2-Fe nanoparticles in the substantia nigra pars compacta (SNpc) showed significant intraneuronal increase of iron, in contrast to the animals administered with FeSO4 that showed severe neuronal loss, 72 h post-treatment. Both treatments induced lipid fluorescent product formation in the ventral midbrain, in contrast to iron-free SiO2 and PBS-only injection controls. Circling behavior was evaluated six days after the intranigral microinjection, considered as a behavioral end-point of brain damage. The apomorphine-induced ipsilateral turns in the treated animals presented significant differences in relation to the control groups, with FeSO4 administration leading to a dramatic phenotype, compared to a milder impact in SiO2-Fe administrated animals. Thus, the use of SiO2-Fe nanoparticles represents a slow iron release system useful to model the gradual iron-accumulation process observed in the SNpc of patients with idiopathic Parkinson's disease.
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Affiliation(s)
- E. Ortiz-Islas
- Laboratory of Molecular Neuropharmacology and Nanotechnology, National Institute of Neurology and Neurosurgery, Manuel Velasco Suarez. Insurgentes Sur 3877. Col. La Fama, 14269., Mexico City, Mexico
| | - A.A. Ponce-Juárez
- Doctoral Program in Biomedical Sciences, National University Autonomous of Mexico. Universidad 3004, Copilco, Coyoacán, 04510, Mexico City, Mexico
| | - F. Tzompantzi-Morales
- Metropolitan Autonomous University-Iztapalapa. Av. San Rafael Atlixco, Iztapalapa, 09340., Mexico City, Mexico
| | - M.E. Manríquez-Ramírez
- ESIQIE-National Polytechnic Institute. Instituto Politécnico Nacional s/n, Col. Zacatenco, 07738, Mexico City, Mexico
| | - C. Rubio
- Neurophysiology Department, National Institute of Neurology and Neurosurgery, Manuel Velasco Suarez. Insurgentes Sur 3877. Col. La Fama, 14269., Mexico City, Mexico
| | - M. Calvillo-Velasco
- Experimental Laboratory of Neurodegenerative Diseases, National Institute of Neurology and Neurosurgery, Manuel Velasco Suarez. Insurgentes Sur 3877. Col. La Fama, 14269., Mexico City, Mexico
| | - G. Chávez-Cortes
- Experimental Laboratory of Neurodegenerative Diseases, National Institute of Neurology and Neurosurgery, Manuel Velasco Suarez. Insurgentes Sur 3877. Col. La Fama, 14269., Mexico City, Mexico
| | - F. Missirlis
- Department of Physiology, Biophysics and Neuroscience, Cinvestav. Avenida Instituto Politécnico Nacional 2508, San Pedro Zacatenco, Gustavo A. Madero, 07360., Mexico City, Mexico
| | - M. Rubio-Osornio
- Neurochemistry Department, National Institute of Neurology and Neurosurgery, Manuel Velasco Suarez. Insurgentes Sur 3877. Col. La Fama, 14269., Mexico City, Mexico
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Tiwari AK, Sen D, Das A, Bahadur J. Evidence of Size Stratification in Colloidal Glass Microgranules Realized by Rapid Evaporative Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15572-15586. [PMID: 37882047 DOI: 10.1021/acs.langmuir.3c01872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Evaporation is a ubiquitous phenomenon. Rapid evaporation of the continuous phase from micrometric colloidal droplets can be used to realize nanostructured microgranules, constituting the assembled nanoparticles. One of the important aspects of such nonequilibrium assembly is the nature of the packing of nanoparticles in the microgranules. The present work demonstrates the evidence of size stratification of the nanoparticles in such far-from-equilibrium configurations. Small-angle X-ray scattering, in combination with particle packing simulation, reveals the "large on top"-type stratification in such assembled microgranules, where the larger particles get concentrated at the outer shell of the granules while the smaller particles reside in the core region. It also reveals the presence of local clusters in such a rapid evaporative assembly in aerosolized colloidal droplets.
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Affiliation(s)
- Anand Kumar Tiwari
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Debasis Sen
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Avik Das
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Jitendra Bahadur
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
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Yao S, Chen N, Sun X, Wang Q, Li M, Chen Y. Size-Dependence of the Skin Penetration of Andrographolide Nanosuspensions: In Vitro Release-Ex Vivo Permeation Correlation and Visualization of the Delivery Pathway. Int J Pharm 2023:123065. [PMID: 37225025 DOI: 10.1016/j.ijpharm.2023.123065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/04/2023] [Accepted: 05/17/2023] [Indexed: 05/26/2023]
Abstract
Particle size is a key parameter to determine the capacity of nanoparticles to overcome the skin barrier; however, such effect and the possible mechanism remain only partially understood for nanosuspensions. In this work, we examined the skin delivery performance of andrographolide nanosuspensions (AG-NS) ranging in diameter from 250 nm to 1000 nm and analyzed the role of particle size in influencing their ability of skin penetration. The AG-NS with particle sizes of about 250 nm (AG-NS250), 450 nm (AG-NS450), and 1000 nm (AG-NS1000) were successfully prepared by ultrasonic dispersion method and characterized by transmission electron microscopy. The drug release and penetration via the intact and barrier-removed skin were compared by the Franz cell method, and the related mechanisms were probed using laser scanning confocal microscopy (LSCM) via visualization of penetration routes and histopathological study via observation of structural change of the skin. Our finding revealed that drug retention in the skin or its sub-layers was increased with the reduction of particle size, and the drug permeability through the skin also exhibited an obvious dependence on the particle size from 250 nm to 1000 nm. The linear relationship between the in vitro drug release and ex vivo permeation through the intact skin was well established among different preparations and in each preparation, indicating the skin permeation of the drug was mainly determined by the release process. The LSCM indicated that all these nanosuspensions could deliver the drug into the intercellular lipid space, as well as block the hair follicle in the skin, where a similar size dependence was also observed. The histopathological investigation showed that the formulations could make the stratum corneum of the skin loose and swelling without severe irritation. In conclusion, the reduction of particle size of nanosuspension would facilitate topical drug retention mainly via the modulation of drug release.
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Affiliation(s)
- Sicheng Yao
- Department of Pharmaceutics, School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Naiying Chen
- Department of Pharmaceutics, School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Xinxing Sun
- Department of Pharmaceutics, School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Qiuyue Wang
- Department of Pharmaceutics, School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Mingming Li
- Department of Pharmaceutics, School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Yang Chen
- Department of Pharmaceutics, School of Pharmacy, China Medical University, Shenyang 110122, China.
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Biswas P, Sen D, Prasher M, Sarkar SK, Dasgupta K. Confinement driven anomalous freezing in nano porous spray dried microspheres. NANOTECHNOLOGY 2021; 32:385707. [PMID: 34116521 DOI: 10.1088/1361-6528/ac0ab6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/11/2021] [Indexed: 06/12/2023]
Abstract
One-step evaporative jamming of colloidal silica particles in contact-free spray droplets resulted in well-defined powder micro-granules with interstitial nanopores. This paper reports the anomalous freezing behaviour of confined water in the microspheres synthesized using spray drying. It has been revealed that the freezing point of water in these microspheres gets significantly lowered (∼-45 °C) owing to the confinement effect. Thermoporometry results are corroborated with the structural details obtained using complementary techniques of gas adsorption measurements and small-angle x-ray scattering.
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Affiliation(s)
- Priyanka Biswas
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai-400085, India
- Homi Bhabha National Institute, Mumbai-400094, India
| | - Debasis Sen
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai-400085, India
- Homi Bhabha National Institute, Mumbai-400094, India
| | - Meenu Prasher
- Materials Science Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - Sudip Kumar Sarkar
- Materials Science Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - Kinshuk Dasgupta
- Homi Bhabha National Institute, Mumbai-400094, India
- Glass and Advanced Materials Division, Materials Group, Bhabha Atomic Research Centre, Mumbai-400085, India
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Zhang F, Zhang N, Xu Q, Zhang L, Zhang C, Liu H, Yu Z, Zhou S, Feng G, Huang F. Decellularized nerve extracellular matrix/chitosan crosslinked by genipin to prepare a moldable nerve repair material. Cell Tissue Bank 2021; 22:419-430. [PMID: 34115245 PMCID: PMC8192270 DOI: 10.1007/s10561-020-09889-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 12/04/2020] [Indexed: 01/23/2023]
Abstract
Decellularized nerve extracellular matrix (NECM) composited with chitosan are moldable materials suitable for spinal cord repair. But the rapid biodegradation of the materials may interrupt neural tissue reconstruction in vivo. To improve the stability of the materials, the materials produced by NECM and chitosan hydrogels were crosslinked by genipine, glutaraldehyde or ultraviolet ray. Physicochemical property, degradation and biocompatibility of materials crosslinked by genipin, glutaraldehyde or ultraviolet ray were evaluated. The scaffold crosslinked by genipin possessed a porous structure, and the porosity ratio was 89.07 + 4.90%, the average diameter of pore was 85.32 + 5.34 μm. The crosslinked degree of the scaffold crosslinked by genipin and glutaraldehyde was 75.13 ± 4.87%, 71.25 ± 5.06% respectively; Uncrosslinked scaffold disintegrated when immerged in distilled water while the scaffold crosslinked by genipin and glutaraldehyde group retained their integrity. The scaffold crosslinked by genipin has better water absorption, water retention and anti-enzymatic hydrolysis ability than the other three groups. Cell cytotoxicity showed that the cytotoxicity of scaffold crosslinked by genipin was lower than that crosslinked by glutaraldehyde. The histocompatibility of scaffold crosslinked by genipin was also better than glutaraldehyde group. More cells grew well in the scaffold crosslinked by genipin when co-cultured with L929 cells. The decellularized nerve extracellular matrix/chitosan scaffold crosslinked by the genipin has good mechanical properties, micro structure and biocompatibility, which is an ideal scaffold for the spinal cord tissue engineering.
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Affiliation(s)
- Fangsong Zhang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Department of Medical Imagine, Shanghai Mental Health Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, People's Republic of China
| | - Naili Zhang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Qing Xu
- Yantai Affiliated Hosptial of Binzhou Medical University, Yantai, 264100, People's Republic of China
| | - Luping Zhang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Chunlei Zhang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Hongfu Liu
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Zhenhai Yu
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Shuai Zhou
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Guoying Feng
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Fei Huang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China.
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China.
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Mukundan S, Melo JS, Sen D, Bahadur J. Enhancement in β-galactosidase activity of Streptococcus lactis cells by entrapping in microcapsules comprising of correlated silica nanoparticles. Colloids Surf B Biointerfaces 2020; 195:111245. [DOI: 10.1016/j.colsurfb.2020.111245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 02/08/2023]
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Das A, Sen D, Bahadur J, Subramanian M. Confinement induced formation of silver nanoparticles in self-assembled micro-granules. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.05.082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Biswas P, Sen D, Ha JM, Choi SM. Anisotropic interaction driven surface modulation on spray-dried microgranules. J Colloid Interface Sci 2018; 538:149-158. [PMID: 30502536 DOI: 10.1016/j.jcis.2018.11.056] [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] [Received: 09/26/2018] [Revised: 11/09/2018] [Accepted: 11/13/2018] [Indexed: 11/16/2022]
Abstract
Rapid evaporation of solvent from spray colloidal droplets induces directed self-assembly among the nanoparticles, eventually interlocking them into correlated granular structures. In this work, it is demonstrated that anisotropy in colloidal interparticle interaction plays a key role in governing the surface topology of spray-dried granules. Colloidal dispersion comprised of spherical nanosilica (NS) and cylindrical carbon nanotubes (CNT) was chosen as a model system in this regard. For identical polarities of the colloidal components, granules with prominent wrinkle-like modulations are obtained, which is in drastic contrast with the case of opposite polarities. The extent of surface modulation depends on the relative concentration of CNT with respective to NS. A plausible mechanism for the formation of surface modulation is elucidated on the basis of the evolving anisotropic interparticle interactions during assembly. Electron microscopy, small-angle scattering, Raman spectroscopic techniques have been used for quantitative characterization of these micro-granules.
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Affiliation(s)
- Priyanka Biswas
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Mumbai 400094, India
| | - Debasis Sen
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Mumbai 400094, India.
| | - Jae-Min Ha
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305701, Korea
| | - Sung-Min Choi
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305701, Korea
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