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Yu DG, Gong W, Zhou J, Liu Y, Zhu Y, Lu X. Engineered shapes using electrohydrodynamic atomization for an improved drug delivery. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1964. [PMID: 38702912 DOI: 10.1002/wnan.1964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 05/06/2024]
Abstract
The shapes of micro- and nano-products have profound influences on their functional performances, which has not received sufficient attention during the past several decades. Electrohydrodynamic atomization (EHDA) techniques, mainly include electrospinning and electrospraying, are facile in manipulate their products' shapes. In this review, the shapes generated using EHDA for modifying drug release profiles are reviewed. These shapes include linear nanofibers, round micro-/nano-particles, and beads-on-a-string hybrids. They can be further divided into different kinds of sub-shapes, and can be explored for providing the desired pulsatile release, sustained release, biphasic release, delayed release, and pH-sensitive release. Additionally, the shapes resulted from the organizations of electrospun nanofibers are discussed for drug delivery, and the shapes and inner structures can be considered together for developing novel drug delivery systems. In future, the shapes and the related shape-performance relationships at nanoscale, besides the size, inner structure and the related structure-performance relationships, would further play their important roles in promoting the further developments of drug delivery field. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies.
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Affiliation(s)
- Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, China
| | - Wenjian Gong
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, China
| | - Jianfeng Zhou
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, China
| | - Yanan Liu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, China
| | - Yunajie Zhu
- Department of Dermatology, Naval Special Medical Center, Naval Medical University, Shanghai, China
| | - Xuhua Lu
- Department of Orthopaedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, China
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2
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Mim JJ, Hasan M, Chowdhury MS, Ghosh J, Mobarak MH, Khanom F, Hossain N. A comprehensive review on the biomedical frontiers of nanowire applications. Heliyon 2024; 10:e29244. [PMID: 38628721 PMCID: PMC11016983 DOI: 10.1016/j.heliyon.2024.e29244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 04/03/2024] [Accepted: 04/03/2024] [Indexed: 04/19/2024] Open
Abstract
This comprehensive review examines the immense capacity of nanowires, nanostructures characterized by unbounded dimensions, to profoundly transform the field of biomedicine. Nanowires, which are created by combining several materials using techniques such as electrospinning and vapor deposition, possess distinct mechanical, optical, and electrical properties. As a result, they are well-suited for use in nanoscale electronic devices, drug delivery systems, chemical sensors, and other applications. The utilization of techniques such as the vapor-liquid-solid (VLS) approach and template-assisted approaches enables the achievement of precision in synthesis. This precision allows for the customization of characteristics, which in turn enables the capability of intracellular sensing and accurate drug administration. Nanowires exhibit potential in biomedical imaging, neural interfacing, and tissue engineering, despite obstacles related to biocompatibility and scalable manufacturing. They possess multifunctional capabilities that have the potential to greatly influence the intersection of nanotechnology and healthcare. Surmounting present obstacles has the potential to unleash the complete capabilities of nanowires, leading to significant improvements in diagnostics, biosensing, regenerative medicine, and next-generation point-of-care medicines.
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Affiliation(s)
- Juhi Jannat Mim
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Mehedi Hasan
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Md Shakil Chowdhury
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Jubaraz Ghosh
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Md Hosne Mobarak
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Fahmida Khanom
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Nayem Hossain
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
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Uskoković V, Abuna G, Hampton JR, Geraldeli S. Tunable Release of Calcium from Chitosan-Coated Bioglass. Pharmaceutics 2023; 16:39. [PMID: 38258050 PMCID: PMC10818729 DOI: 10.3390/pharmaceutics16010039] [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: 12/06/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
Bioglass presents a standard biomaterial for regeneration of hard tissues in orthopedics and dentistry. The notable osteo-inductive properties of bioglass are largely due to the release of calcium ions from it. However, this release is not easily controllable and can often be excessive, especially during the initial interaction of the biomaterial with the surrounding tissues. Consequently, this excessive release can deplete the calcium content of the bioglass, ultimately reducing its overall bioactivity. In this study, we have tested if applying biopolymer chitosan coatings of different thicknesses would be able to mitigate and regulate the calcium ion release from monodisperse bioglass nanoparticles. Calcium release was assessed for four different chitosan coating thicknesses at different time points over the period of 28 days using a fluorescence quencher. Expectedly, chitosan-coated particles released less calcium as the concentration of chitosan in the coating solution increased, presumably due to the increased thickness of the chitosan coating around the bioglass particles. The mechanism of release remained constant for each coating thickness, corresponding to anomalous, non-Fickian diffusion, but the degree of anomalousness increased with the deposition of chitosan. Zeta potential testing showed an expected increase in the positive double layer charge following the deposition of the chitosan coating due to the surface exposure of the amine groups of chitosan. Less intuitively, the zeta potential became less positive as thickness of the chitosan coating increased, attesting to the lower density of the surface charges within thicker coatings than within the thinner ones. Overall, the findings of this study demonstrate that chitosan coating efficiently prevents the early release of calcium from bioglass. This coating procedure also allows for the tuning of the calcium release kinetics by controlling the chitosan concentration in the parent solution.
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Affiliation(s)
- Vuk Uskoković
- TardigradeNano LLC, 7 Park Vista, Irvine, CA 92604, USA
- Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - Gabriel Abuna
- School of Dental Medicine, East Carolina University, 1851 MacGregor Downs Rd, Greenville, NC 27834, USA; (G.A.); (J.R.H.)
| | - Joseph Ryan Hampton
- School of Dental Medicine, East Carolina University, 1851 MacGregor Downs Rd, Greenville, NC 27834, USA; (G.A.); (J.R.H.)
| | - Saulo Geraldeli
- School of Dental Medicine, East Carolina University, 1851 MacGregor Downs Rd, Greenville, NC 27834, USA; (G.A.); (J.R.H.)
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Kitayama Y, Takigawa S, Harada A. Effect of Poly(Vinyl Alcohol) Concentration and Chain Length on Polymer Nanogel Formation in Aqueous Dispersion Polymerization. Molecules 2023; 28:molecules28083493. [PMID: 37110725 PMCID: PMC10143144 DOI: 10.3390/molecules28083493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/04/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Nanotechnology has attracted increasing interest in various research fields for fabricating functional nanomaterials. In this study, we investigated the effect of poly(vinyl alcohol) (PVA) addition on the formation and thermoresponsive properties of poly(N-isopropyl acrylamide)-based nanogels in aqueous dispersion polymerizations. During dispersion polymerization, PVA appears to play three roles: (i) it bridges the generated polymer chains during polymerization, (ii) it stabilizes the formed polymer nanogels, and (iii) it regulates the thermoresponsive properties of the polymer nanogels. By regulating the bridging effect of PVA via changing the PVA concentration and chain length, the size of the obtained polymer gel particles was maintained in the nanometer range. Furthermore, we found that the clouding-point temperature increased when using low-molecular weight PVA. We believe that the knowledge gained in this study regarding the effect of PVA concentration and chain length on nanogel formation will aid in the future fabrication of functional polymer nanogels.
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Affiliation(s)
- Yukiya Kitayama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Shunsuke Takigawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Atsushi Harada
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
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5
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Uskoković V. Supplementation of Polymeric Reservoirs with Redox-Responsive Metallic Nanoparticles as a New Concept for the Smart Delivery of Insulin in Diabetes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:786. [PMID: 36676521 PMCID: PMC9862131 DOI: 10.3390/ma16020786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/05/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Type 1 diabetes is caused by the inability of the pancreatic beta cells to produce sufficient amounts of insulin, an anabolic hormone promoting the absorption of the blood glucose by various cells in the body, primarily hepatocytes and skeletal muscle cells. This form of impaired metabolism has been traditionally treated with subcutaneous insulin injections. However, because one such method of administration does not directly correspond to the glucose concentrations in the blood and may fail to reduce hyperglycemia or cause hypoglycemia, the delivery of insulin in a glucose-dependent manner has been researched intensely in the present and past. This study tested the novel idea that the supplementation of polymeric reservoirs containing insulin with metallic nanoparticle precursors responsive to the redox effect of glucose could be used to create triggers for the release of insulin in direct response to the concentration of glucose in the tissue. For that purpose, manganese oxide nanoparticles were dispersed inside a poly(ε-caprolactone) matrix loaded with an insulin proxy and the resulting composite was exposed to different concentrations of glucose. The release of the insulin proxy occurred in direct proportion to the concentration of glucose in the medium. Mechanistically, as per the central hypothesis of the study, glucose reduced the manganese cations contained within the metal oxide phase, forming finer and more dissipative zero-valent metallic nanoparticles, thus disrupting the polymeric network, opening up pores in the matrix and facilitating the release of the captured drug. The choice of manganese for this study over other metals was justified by its use as a supplement for protection against diabetes. Numerical analysis of the release mechanism revealed an increasingly nonlinear and anomalous release accompanied by a higher diffusion rate at the expense of chain rigidity as the glucose concentration increased. Future studies should focus on rendering the glucose-controlled release (i) feasible within the physiological pH range and (ii) sensitive to physiologically relevant glucose concentrations. These technical improvements of the fundamental new concept proven here may bring it closer to a real-life application for the mitigation of symptoms of hyperglycemia in patients with diabetes.
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Affiliation(s)
- Vuk Uskoković
- TardigradeNano LLC, 7 Park Vista, Irvine, CA 92604, USA; or or
- Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
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6
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Uskoković V, Wu VM. Altering Microbiomes with Hydroxyapatite Nanoparticles: A Metagenomic Analysis. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5824. [PMID: 36079205 PMCID: PMC9456825 DOI: 10.3390/ma15175824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
Hydroxyapatite (HAp), the most abundant biological material among mammals, has been recently demonstrated to possess moderate antibacterial properties. Metagenomics provides a series of tools for analyzing the simultaneous interaction of materials with larger communities of microbes, which may aid in optimizing the antibacterial activity of a material such as HAp. Here, a microbiome intrinsic to the sample of sandy soil collected from the base of an African Natal plum (Carissa macrocarpa) shrub surrounding the children's sandbox at the Arrowhead Park in Irvine, California was challenged with HAp nanoparticles and analyzed with next-generation sequencing for hypervariable 16S ribosomal DNA base pair homologies. HAp nanoparticles overwhelmingly reduced the presence of Gram-negative phyla, classes, orders, families, genera and species, and consequently elevated the relative presence of their Gram-positive counterparts. Thermodynamic, electrostatic and chemical bonding arguments were combined in a model proposed to explain this selective affinity. The ability of amphiphilic surface protrusions of lipoteichoic acid in Gram-positive bacteria and mycolic acid in mycobacteria to increase the dispersibility of the bacterial cells and assist in their resistance to capture by the solid phase is highlighted. Within the Gram-negative group, the variability of the distal, O-antigen portion of the membrane lipopolysaccharide was shown to be excessive and the variability of its proximal, lipid A portion insufficient to explain the selectivity based on chemical sequence arguments. Instead, flagella-driven motility proves to be a factor favoring the evasion of binding to HAp. HAp displayed a preference toward binding to less pathogenic bacteria than those causative of disease in humans, while taxa having a positive agricultural effect were largely captured by HAp, indicating an evolutionary advantage this may have given it as a biological material. The capacity to selectively sequester Gram-negative microorganisms and correspondingly alter the composition of the microbiome may open up a new avenue in environmental and biomedical applications of HAp.
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Affiliation(s)
- Vuk Uskoković
- TardigradeNano LLC, Irvine, CA 92604, USA;
- Department of Mechanical Engineering, San Diego State University, San Diego, CA 92182, USA
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Yamazoe H, Kominami C, Abe H. Superior Adhesion of a Multifunctional Protein-Based Micropatch to Intestinal Tissue by Harnessing the Hydrophobic Effect. SMALL METHODS 2022; 6:e2200153. [PMID: 35460203 DOI: 10.1002/smtd.202200153] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Indexed: 06/14/2023]
Abstract
Drug delivery systems comprising drug carriers capable of adhering to intestinal tissue have considerable potential to realize more sophisticated systemic drug delivery and topical drug treatments in the intestinal tract. The development of innovative strategies for improving the adhesion efficiency of carriers is of high importance for the advancement of this field. Herein, a novel approach to achieving high adhesion efficiency of drug carriers is presented, where the accessibility of the carrier to the intestinal surface and its subsequent adhesion to the intestinal tissue are promoted by utilizing the thermodynamic tendency of the hydrophobic carrier and its dispersion solvent, triacetin, to be excluded from the aqueous environment. Drug carriers are fabricated using proteins, imparting multiple functions, including drug release and the removal of reactive oxygen species (ROS). Results of ex vivo studies indicate that this multifunctional protein-based carrier, "protein micropatch," adheres to various mouse intestinal tissues, including the small intestine, colon, and inflamed colon, with high efficiency. Furthermore, protein micropatches, administered to mice via oral or rectal routes, successfully adhere to the intestinal tract. This approach and the highly functionalized carrier described in the study have the potential to significantly contribute to the development of bioadhesive carrier-based drug delivery systems.
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Affiliation(s)
- Hironori Yamazoe
- Advanced Medical Devices Research Group, Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka, 563-8577, Japan
| | - Chizuko Kominami
- Advanced Medical Devices Research Group, Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka, 563-8577, Japan
| | - Hiroko Abe
- Cellular Function Analysis Research Group, Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14 Hayashi-cho, Takamatsu, Kagawa, 761-0395, Japan
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8
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Xing Z, Zhao S, Guo W, Guo X. Geometric Feature Extraction of Point Cloud of Chemical Reactor Based on Dynamic Graph Convolution Neural Network. ACS OMEGA 2021; 6:21410-21424. [PMID: 34471744 PMCID: PMC8388001 DOI: 10.1021/acsomega.1c02213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 07/20/2021] [Indexed: 05/05/2023]
Abstract
Geometric features are an important factor for the classification of drugs and other transport objects in chemical reactors. The moving speed of drugs and other transport objects in chemical reactors is fast, and it is difficult to obtain their features by imaging and other methods. In order to avoid the mistaken and missed distribution of drugs and other objects, a method of extracting geometric features of the drug's point cloud in a chemical reactor based on a dynamic graph convolution neural network (DGCNN) is proposed. In this study, we first use MATLAB R2019a to add a random number of noise points in each point cloud file and label the point cloud. Second, k-nearest neighbor (KNN) is used to construct the adjacency relationship of all nodes, and the effect of DGCNN under different k values and the confusion matrix under the optimal k value are analyzed. Finally, we compare the effect of DGCNN with PointNet and PointNet++. The experimental results show that when k is 20, the accuracy, precision, recall, and F1 score of DGCNN are higher than those of other k values, while the training time is much shorter than that of k = 25, 30, and 35; in addition, the effect of DGCNN in extracting geometric features of the point cloud is better than that of PointNet and PointNet++. The results show that it is feasible to use DGCNN to analyze the geometric characteristics of drug point clouds in a chemical reactor. This study fills the gap of the end-to-end extraction method for a point cloud's corresponding geometric features without a data set. In addition, this study promotes the institutionalization, standardization, and intelligent design of safe production and management of drugs and other objects in the chemical reactor, and it has positive significance for the production cost and resource utilization of the whole pharmaceutical process. At the same time, it provides a new method for the intelligent processing of point cloud data.
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Affiliation(s)
- Zhizhong Xing
- College
of Mechanical Engineering, Xi’an
University of Science and Technology, Xi’an, Shaanxi 710054, China
| | - Shuanfeng Zhao
- College
of Mechanical Engineering, Xi’an
University of Science and Technology, Xi’an, Shaanxi 710054, China
| | - Wei Guo
- College
of Mechanical Engineering, Xi’an
University of Science and Technology, Xi’an, Shaanxi 710054, China
| | - Xiaojun Guo
- School
of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510641, China
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Luo Z, Paunović N, Leroux JC. Physical methods for enhancing drug absorption from the gastrointestinal tract. Adv Drug Deliv Rev 2021; 175:113814. [PMID: 34052229 DOI: 10.1016/j.addr.2021.05.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 01/01/2023]
Abstract
Overcoming the gastrointestinal (GI) barriers is a formidable challenge in the oral delivery of active macromolecules such as peptide- and protein- based drugs. In the past four decades, a plethora of formulation strategies ranging from permeation enhancers, nanosized carriers, and chemical modifications of the drug's structure has been investigated to increase the oral absorption of these macromolecular compounds. However, only limited successes have been achieved so far, with the bioavailability of marketed oral peptide drugs remaining generally very low. Recently, a few approaches that are based on physical interactions, such as magnetic, acoustic, and mechanical forces, have been explored in order to control and improve the drug permeability across the GI mucosa. Although in the early stages, some of these methods have shown great potential both in terms of improved bioavailability and spatiotemporal delivery of drugs. Here, we offer a concise, yet critical overview of these rather unconventional technologies with a particular focus on their potential and possible challenges for further clinical translation.
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Liaw J, Hsieh WH, Chiou SH, Huang YS, Chang SF. Assessment of the Oral Delivery of a Myelin Basic Protein Gene Promoter with Antiapoptotic bcl-x L (pMBP-bcl-x L) DNA by Cyclic Peptide Nanotubes with Two Aspect Ratios and Its Biodistribution in the Brain and Spinal Cord. Mol Pharm 2021; 18:2556-2573. [PMID: 34110176 DOI: 10.1021/acs.molpharmaceut.1c00057] [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: 01/08/2023]
Abstract
Cyclo-(D-Trp-Tyr) peptide nanotubes (PNTs) were reported to be potential carriers for oral gene delivery in our previous study; however, the effect of the aspect ratio (AR) of these PNTs on gene delivery in vivo could affect penetration or interception in biological environments. The aim of this study was to assess the feasibility of cyclo-(D-Trp-Tyr) PNTs with two ARs as carriers for oral pMBP-bcl-xL-hRluc delivery to the spinal cord to treat spinal cord injury (SCI). We evaluated the biodistribution of oligodendrocyte (OLG)-specific myelin basic protein gene promoter-driven antiapoptotic DNA (pMBP-bcl-xL) to the brain and spinal cord delivered with cyclo-(D-Trp-Tyr) PNTs with large (L) and small (S) PNTs with two ARs. After complex formation, the length, width, and AR of the L-PNTs/DNA were 77.86 ± 3.30, 6.51 ± 0.28, and 13.75 ± 7.29 μm, respectively, and the length and width of the S-PNTs/DNA were 1.17 ± 0.52 and 0.17 ± 0.05 μm, respectively, giving an AR of 7.12 ± 3.17 as detected by scanning electron microscopy. Each of these three parameters exhibited significant differences (p < 0.05) between L-PNTs/DNA and S-PNTs/DNA. However, there were no significant differences (p > 0.05) between the L-PNTs and S-PNTs for either their DNA encapsulation efficiency (29.72 ± 14.19 and 34.31 ± 16.78%, respectively) or loading efficiency (5.15 ± 2.58 and 5.95 ± 2.91%). The results of the in vitro analysis showed that the S-PNT/DNA complexes had a significantly higher DNA release rate and DNA permeation in the duodenum than the L-PNT/DNA complexes. Using Cy5 and TM-rhodamine to individually and chemically conjugate the PNTs with plasmid DNA, we observed, using laser confocal microscopy, that the PNTs and DNA colocalized in complexes. We further confirmed the complexation between DNA and the PNTs using fluorescence resonance energy transfer (FRET). Data from an in vivo imaging system (IVIS) showed that there was no significant difference (p > 0.05) in PNT distribution between L-PNTs/DNA and S-PNTs/DNA within 4 h. However, the S-PNT/DNA group had a significantly higher DNA distribution (p < 0.05) in several organs, including the ilium, heart, lungs, spleen, kidneys, testes, brain, and spinal cord. Finally, we determined the bcl-xL protein expression levels in the brain and spinal cord regions for the L-PNT/DNA and S-PNT/DNA complex formulations. These results suggested that either L-PNTs or S-PNTs may be used as potential carriers for oral gene delivery to treat SCI.
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Affiliation(s)
- Jiahorng Liaw
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Wei-Hsien Hsieh
- Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, Hsinchu 300, Taiwan
| | - Shih-Hsun Chiou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Yu-Shan Huang
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Shwu-Fen Chang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 111, Taiwan
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11
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Finbloom JA, Sousa F, Stevens MM, Desai TA. Engineering the drug carrier biointerface to overcome biological barriers to drug delivery. Adv Drug Deliv Rev 2020; 167:89-108. [PMID: 32535139 PMCID: PMC10822675 DOI: 10.1016/j.addr.2020.06.007] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 02/06/2023]
Abstract
Micro and nanoscale drug carriers must navigate through a plethora of dynamic biological systems prior to reaching their tissue or disease targets. The biological obstacles to drug delivery come in many forms and include tissue barriers, mucus and bacterial biofilm hydrogels, the immune system, and cellular uptake and intracellular trafficking. The biointerface of drug carriers influences how these carriers navigate and overcome biological barriers for successful drug delivery. In this review, we examine how key material design parameters lead to dynamic biointerfaces and improved drug delivery across biological barriers. We provide a brief overview of approaches used to engineer key physicochemical properties of drug carriers, such as morphology, surface chemistry, and topography, as well as the development of dynamic responsive materials for barrier navigation. We then discuss essential biological barriers and how biointerface engineering can enable drug carriers to better navigate and overcome these barriers to drug delivery.
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Affiliation(s)
- Joel A Finbloom
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA, USA
| | - Flávia Sousa
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Tejal A Desai
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA, USA.
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12
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Sharma HS, Sahib S, Tian ZR, Muresanu DF, Nozari A, Castellani RJ, Lafuente JV, Wiklund L, Sharma A. Protein kinase inhibitors in traumatic brain injury and repair: New roles of nanomedicine. PROGRESS IN BRAIN RESEARCH 2020; 258:233-283. [PMID: 33223036 DOI: 10.1016/bs.pbr.2020.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Traumatic brain injury (TBI) causes physical injury to the cell membranes of neurons, glial and axons causing the release of several neurochemicals including glutamate and cytokines altering cell-signaling pathways. Upregulation of mitogen associated protein kinase (MAPK) and extracellular signal-regulated kinase (ERK) occurs that is largely responsible for cell death. The pharmacological blockade of these pathways results in cell survival. In this review role of several protein kinase inhibitors on TBI induced oxidative stress, blood-brain barrier breakdown, brain edema formation, and resulting brain pathology is discussed in the light of current literature.
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Affiliation(s)
- Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
| | - Seaab Sahib
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Z Ryan Tian
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Dafin F Muresanu
- Department of Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania; "RoNeuro" Institute for Neurological Research and Diagnostic, Cluj-Napoca, Romania
| | - Ala Nozari
- Anesthesiology & Intensive Care, Massachusetts General Hospital, Boston, MA, United States
| | - Rudy J Castellani
- Department of Pathology, University of Maryland, Baltimore, MD, United States
| | - José Vicente Lafuente
- LaNCE, Department of Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bilbao, Spain
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
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13
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Uskoković V. Why have nanotechnologies been underutilized in the global uprising against the coronavirus pandemic? Nanomedicine (Lond) 2020; 15:1719-1734. [PMID: 32462968 PMCID: PMC7265684 DOI: 10.2217/nnm-2020-0163] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 05/07/2020] [Indexed: 12/11/2022] Open
Abstract
Prior research on nanotechnologies in diagnostics, prevention and treatment of coronavirus infections is reviewed. Gold nanoparticles and semiconductor quantum dots in colorimetric and immunochromatographic assays, silica nanoparticles in the polymerase chain reaction and spike protein nanospheres as antigen carriers and adjuvants in vaccine formulations present notable examples in diagnostics and prevention, while uses of nanoparticles in coronavirus infection treatments have been merely sporadic. The current absence of antiviral therapeutics that specifically target human coronaviruses, including SARS-CoV-2, might be largely due to the underuse of nanotechnologies. Elucidating the interface between nanoparticles and coronaviruses is timely, but presents the only route to the rational design of precisely targeted therapeutics for coronavirus infections. Such a fundamental approach is also a viable prophylaxis against future pandemics of this type.
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Affiliation(s)
- Vuk Uskoković
- Department of Mechanical & Aerospace Engineering, University of California Irvine, Engineering Gateway 4200, Irvine, CA 92697, USA
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14
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Shende P, Wakade VS. Biointerface: a nano-modulated way for biological transportation. J Drug Target 2020; 28:456-467. [DOI: 10.1080/1061186x.2020.1720218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Pravin Shende
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM’s NMIMS, Mumbai, India
| | - Varun S. Wakade
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM’s NMIMS, Mumbai, India
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15
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Micro and nanoscale technologies in oral drug delivery. Adv Drug Deliv Rev 2020; 157:37-62. [PMID: 32707147 PMCID: PMC7374157 DOI: 10.1016/j.addr.2020.07.012] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/13/2020] [Accepted: 07/17/2020] [Indexed: 12/25/2022]
Abstract
Oral administration is a pillar of the pharmaceutical industry and yet it remains challenging to administer hydrophilic therapeutics by the oral route. Smart and controlled oral drug delivery could bypass the physiological barriers that limit the oral delivery of these therapeutics. Micro- and nanoscale technologies, with an unprecedented ability to create, control, and measure micro- or nanoenvironments, have found tremendous applications in biology and medicine. In particular, significant advances have been made in using these technologies for oral drug delivery. In this review, we briefly describe biological barriers to oral drug delivery and micro and nanoscale fabrication technologies. Micro and nanoscale drug carriers fabricated using these technologies, including bioadhesives, microparticles, micropatches, and nanoparticles, are described. Other applications of micro and nanoscale technologies are discussed, including fabrication of devices and tissue engineering models to precisely control or assess oral drug delivery in vivo and in vitro, respectively. Strategies to advance translation of micro and nanotechnologies into clinical trials for oral drug delivery are mentioned. Finally, challenges and future prospects on further integration of micro and nanoscale technologies with oral drug delivery systems are highlighted.
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16
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Jin Y, Liu Q, Zhou C, Hu X, Wang L, Han S, Zhou Y, Liu Y. Intestinal oligopeptide transporter PepT1-targeted polymeric micelles for further enhancing the oral absorption of water-insoluble agents. NANOSCALE 2019; 11:21433-21448. [PMID: 31681915 DOI: 10.1039/c9nr07029j] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The intestinal epithelium is the main barrier for nanocarriers to orally deliver poorly water-soluble and absorbed agents. To further improve the transmembrane transport efficiency of polymeric micelles, intestinal oligopeptide transporter PepT1-targeted polymeric micelles were fabricated by Gly-Sar-conjugated poly(ethylene glycol)-poly(d,l-lactic acid). The functionalized polymeric micelles with about 40 nm diameter, uniform spherical morphology and favorable cytocompatibility with Caco-2 cells were demonstrated to distinctly enhance the cellular uptake and transmembrane transport of the loaded agents. The results of intestinal absorption strongly evidenced the higher accumulation of the micelles inside the epithelial cells, at the apical and basolateral sides of the epithelium within the villi in mice. Furthermore, the interaction of Gly-Sar decorated polymeric micelles with PepT1 was explored to promote the internalization of the micelles through fluorescence immunoassay, and the PepT1 level on the membrane of Caco-2 cells treated with the micelles appeared to change in a distinctly time-dependent manner. Both clathrin- and caveolae-mediated pathways were involved in the transcellular transport for undecorated polymeric micelles, while the transcellular transport pathway for Gly-Sar decorated ones was changed to be mainly mediated by clathrin and lipid rafts. The colocalization of Gly-Sar decorated micelles with the organelles observed by confocal laser scanning microscopy indicated that late endosomes, lysosomes, endoplasmic reticulum and Golgi apparatus appeared to participate in the intracellular trafficking progression of the micelles. These results suggested that PepT1-targeted polymeric micelles might have a strong potential to greatly promote the oral absorption of poorly water-soluble and absorbed agents.
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Affiliation(s)
- Yao Jin
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Qi Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Chuhang Zhou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Xinping Hu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Leqi Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Shidi Han
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Yuanhang Zhou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Yan Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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17
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Chen HJ, Hang T, Yang C, Liu D, Su C, Xiao S, Liu C, Lin DA, Zhang T, Jin Q, Tao J, Wu MX, Wang J, Xie X. Functionalized Spiky Particles for Intracellular Biomolecular Delivery. ACS CENTRAL SCIENCE 2019; 5:960-969. [PMID: 31263755 PMCID: PMC6598163 DOI: 10.1021/acscentsci.8b00749] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Indexed: 05/08/2023]
Abstract
The intracellular delivery of biomolecules is of significant importance yet challenging. In addition to the conventional delivery of nanomaterials that rely on biochemical pathways, vertical nanowires have been recently proposed to physically penetrate the cell membrane, thus enabling the direct release of biomolecules into the cytoplasm circumventing endosomal routes. However, due to the inherent attachment of the nanowires to a planar 2D substrate, nanowire cell penetrations are restricted to in vitro applications, and they are incapable of providing solution-based delivery. To overcome this structural limitation, we created polyethylenimine-functionalized microparticles covered with nanospikes, namely, "spiky particles", to deliver biomolecules by utilizing the nanospikes to penetrate the cell membrane. The nanospikes might penetrate the cell membrane during particle engulfment, and this enables the bound biomolecules to be released directly into the cytosol. TiO2 spiky particles were fabricated through hydrothermal routes, and they were demonstrated to be biocompatible with HeLa cells, macrophage-like RAW cells, and fibroblast-like 3T3-L1 cells. The polyethylenimine-functionalized spiky particles provided direct delivery of fluorescent siRNA into cell cytosol and functional siRNA for gene knockdown as well as successful DNA plasmid transfection which were difficult to achieve by using microparticles without nanospikes. The spiky particles presented a unique direct cell membrane penetrant vehicle to introduce biomolecules into cell cytosol, where the biomolecules might bypass conventional endocytic degradation routes.
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Affiliation(s)
- Hui-Jiuan Chen
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
| | - Tian Hang
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
| | - Chengduan Yang
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
| | - Di Liu
- Pritzker
School of Medicine, University of Chicago, Chicago, Illinois 60637, United States
| | - Chen Su
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
| | - Shuai Xiao
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
| | - Chenglin Liu
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
| | - Di-an Lin
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
| | - Tao Zhang
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
- College
of Electrical and Information Engineering, Huaihua University, Huaihua 418000, China
| | - Quanchang Jin
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
| | - Jun Tao
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
| | - Mei X. Wu
- Department
of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Ji Wang
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
- Department
of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Xi Xie
- The
First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory
of Optoelectronic Materials and Technologies, School of Electronics
and Information Technology, Sun Yat-Sen
University, Guangzhou 510275, China
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18
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Wu VM, Huynh E, Tang S, Uskoković V. Brain and bone cancer targeting by a ferrofluid composed of superparamagnetic iron-oxide/silica/carbon nanoparticles (earthicles). Acta Biomater 2019; 88:422-447. [PMID: 30711662 DOI: 10.1016/j.actbio.2019.01.064] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 01/11/2019] [Accepted: 01/30/2019] [Indexed: 01/02/2023]
Abstract
Despite the advances in molecularly targeted therapies, delivery across the blood-brain barrier (BBB) and the targeting of brain tumors remains a challenge. Like brain, bone is a common site of metastasis and requires therapies capable of discerning the tumor from its healthy cellular milieu. To tackle these challenges, we made a variation on the previously proposed concept of the earthicle and fabricated an aqueous, surfactant-free ferrofluid containing superparamagnetic iron oxide nanoparticles (SPIONs) coated with silicate mesolayers and carbon shells, having 13 nm in size on average. Nanoparticles were synthesized hydrothermally and characterized using a range of spectroscopic, diffractometric, hydrodynamic and electron microscopy techniques. The double coating on SPIONs affected a number of physicochemical and biological properties, including colloidal stability and cancer targeting efficacy. Nanoparticles decreased the viability of glioblastoma and osteosarcoma cells and tumors more than that of their primary and non-transformed analogues. They showed a greater preference for cancer cells because of a higher rate of uptake by these cells and a pronounced adherence to cancer cell membrane. Even in an ultralow alternate magnetic field, nanoparticles generated sufficient heat to cause tumor death. Nanoparticles in MDCK-MDR1 BBB model caused mislocalization of claudin-1 at the tight junctions, underexpression of ZO-1 and no effect on occludin-1 and transepithelial resistance. Nanoparticles were detected in the basolateral compartments and examination of LAMP1 demonstrated that nanoparticles escaped the lysosome, traversed the BBB transcellularly and localized to the optic lobes of the third instar larval brains of Drosophila melanogaster. The passage was noninvasive and caused no adverse systemic effects to the animals. In conclusion, these nanoparticulate ferrofluids preferentially bind to cancer cells and, hence, exhibit a greater toxicity in these cells compared to the primary cells. They are also effective against solid tumors in vitro, can cross the BBB in Drosophila, and are nontoxic based on the developmental studies of flies raised in ferrofluid-infused media. STATEMENT OF SIGNIFICANCE: We demonstrate that a novel, hydrothermally synthesized composite nanoparticle-based ferrofluid is effective in reducing the viability of osteosarcoma and glioblastoma cells in vitro, while having minimal effects on primary cell lines. In 3D tumor spheroids, nanoparticles greatly reduced the metastatic migration of cancer cells, while the tumor viability was reduced compared to the control group by applying magnetic hyperthermia to nanoparticle-treated spheroids. Both in vitro and in vivo models of the blood-brain barrier evidence the ability of nanoparticles to cross the barrier and localize to the brain tissue. These composite nanoparticles show great promise as an anticancer biomaterial for the treatment of different types of cancer and may serve as an alternative or addendum to traditional chemotherapies.
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Affiliation(s)
- Victoria M Wu
- Advanced Materials and Nanobiotechnology Laboratory, Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA 92618-1908, USA
| | - Eric Huynh
- Advanced Materials and Nanobiotechnology Laboratory, Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA 92618-1908, USA
| | - Sean Tang
- Advanced Materials and Nanobiotechnology Laboratory, Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA 92618-1908, USA
| | - Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA 92618-1908, USA; Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, IL 60607-7052, USA.
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19
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Jiang X, Zhang X, Gray P, Zheng J, Croley TR, Fu PP, Yin JJ. Influences of simulated gastrointestinal environment on physicochemical properties of gold nanoparticles and their implications on intestinal epithelial permeability. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2019; 37:116-131. [PMID: 31230526 DOI: 10.1080/10590501.2019.1602994] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Gold nanoparticles (Au NPs) hold great promise in food, industrial and biomedical applications due to their unique physicochemical properties. However, influences of the gastrointestinal tract (GIT), a likely route for Au NPs administration, on the physicochemical properties of Au NPs has been rarely evaluated. Here, we investigated the influence of GIT fluids on the physicochemical properties of Au NPs (5, 50, and 100 nm) and their implications on intestinal epithelial permeability in vitro. Au NPs aggregated in fasted gastric fluids and generated hydroxyl radicals in the presence of H2O2. Cell studies showed that GIT fluids incubation of Au NPs affected the cellular uptake of Au NPs but did not induce cytotoxicity or disturb the intestinal epithelial permeability.
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Affiliation(s)
- Xiumei Jiang
- a Division of Analytical Chemistry and Division of Bioanalytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , U.S. Food and Drug Administration , College Park , Maryland , USA
| | - Xiaowei Zhang
- a Division of Analytical Chemistry and Division of Bioanalytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , U.S. Food and Drug Administration , College Park , Maryland , USA
| | - Patrick Gray
- a Division of Analytical Chemistry and Division of Bioanalytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , U.S. Food and Drug Administration , College Park , Maryland , USA
| | - Jiwen Zheng
- b Division of Biology, Chemistry and Materials Sciences, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health , U.S. Food and Drug Administration , Silver Spring , Maryland , USA
| | - Timothy R Croley
- a Division of Analytical Chemistry and Division of Bioanalytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , U.S. Food and Drug Administration , College Park , Maryland , USA
| | - Peter P Fu
- c National Center for Toxicological Research , U.S. Food and Drug Administration , Jefferson , Arkansas , USA
| | - Jun-Jie Yin
- a Division of Analytical Chemistry and Division of Bioanalytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , U.S. Food and Drug Administration , College Park , Maryland , USA
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20
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Uskoković V, Wu VM. Astromimetics: The dawn of a new era for (bio)materials science? Nanobiomedicine (Rij) 2018; 5:1849543518794345. [PMID: 30147757 PMCID: PMC6100122 DOI: 10.1177/1849543518794345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 07/22/2018] [Indexed: 11/25/2022] Open
Abstract
Composite, multifunctional fine particles are likely to be at the frontier of materials science in the foreseeable future. Here we present a submicron composite particle that mimics the stratified structure of the Earth by having a zero-valent iron core, a silicate/silicide mantle, and a thin carbonaceous crust resembling the biosphere and its biotic deposits. Particles were formulated in a stable colloidal form and made to interact with various types of healthy and cancer cells in vitro. A selective anticancer activity was observed, promising from the point of view of the intended use of the particles for tumor targeting across the blood–brain barrier. As an extension of the idea underlying the fabrication of a particle mimicking the planet Earth, we propose a new field of mimetics within materials science: astromimetics. The astromimetic approach in the context of materials science consists of the design of particles after the structure of celestial bodies. With Earth being the most chemically diverse and fertile out of all the astral bodies known, it is anticipated that the great majority of astromimetic material models will fall in the domain of geo-inspired ones.
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Affiliation(s)
- Vuk Uskoković
- Department of Bioengineering, University of Illinois, Chicago, IL, USA
| | - Victoria M Wu
- Department of Biomedical and Pharmaceutical Sciences, Center for Targeted Drug Delivery, Chapman University, Irvine, CA, USA
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21
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Wagner AM, Gran MP, Peppas NA. Designing the new generation of intelligent biocompatible carriers for protein and peptide delivery. Acta Pharm Sin B 2018; 8:147-164. [PMID: 29719776 PMCID: PMC5925450 DOI: 10.1016/j.apsb.2018.01.013] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/26/2018] [Accepted: 01/28/2018] [Indexed: 12/11/2022] Open
Abstract
Therapeutic proteins and peptides have revolutionized treatment for a number of diseases, and the expected increase in macromolecule-based therapies brings a new set of challenges for the pharmaceutics field. Due to their poor stability, large molecular weight, and poor transport properties, therapeutic proteins and peptides are predominantly limited to parenteral administration. The short serum half-lives typically require frequent injections to maintain an effective dose, and patient compliance is a growing issue as therapeutic protein treatments become more widely available. A number of studies have underscored the relationship of subcutaneous injections with patient non-adherence, estimating that over half of insulin-dependent adults intentionally skip injections. The development of oral formulations has the potential to address some issues associated with non-adherence including the interference with daily activities, embarrassment, and injection pain. Oral delivery can also help to eliminate the adverse effects and scar tissue buildup associated with repeated injections. However, there are several major challenges associated with oral delivery of proteins and peptides, such as the instability in the gastrointestinal (GI) tract, low permeability, and a narrow absorption window in the intestine. This review provides a detailed overview of the oral delivery route and associated challenges. Recent advances in formulation and drug delivery technologies to enhance bioavailability are discussed, including the co-administration of compounds to alter conditions in the GI tract, the modification of the macromolecule physicochemical properties, and the use of improved targeted and controlled release carriers.
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Affiliation(s)
- Angela M. Wagner
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, TX 78712, USA
| | - Margaret P. Gran
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Nicholas A. Peppas
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, TX 78712, USA
- Department of Pediatrics, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
- Department of Surgery and Perioperative Care, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
- Division of Pharmaceutics, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
- Corresponding author at: McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA. Tel.: +1 512 471 6644; fax: +1 512 471 8227.
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22
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Progress in topographically defined scaffolds for drug delivery system. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2018. [DOI: 10.1007/s40005-017-0379-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Zhang L, Qin H, Li J, Qiu JN, Huang JM, Li MC, Guan YQ. Preparation and characterization of layer-by-layer hypoglycemic nanoparticles with pH-sensitivity for oral insulin delivery. J Mater Chem B 2018; 6:7451-7461. [DOI: 10.1039/c8tb02113a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We developed an insulin oral delivery system with the combination of pH-sensitive material and structure to avoid intestinal degradation.
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Affiliation(s)
- Li Zhang
- School of Life Science, South China Normal University
- Guangzhou 510631
- China
- National Engineering Research Center for Healthcare Devices, Guangdong Key Lab of Medical Electronic Instruments and Polymer Material Products, Guangdong Institute of Medical Instruments
- Guangzhou 510500
| | - Han Qin
- School of Life Science, South China Normal University
- Guangzhou 510631
- China
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Academy of Advanced Optoelectronics, South China Normal University
- Guangzhou 510006
| | - Jian Li
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University
- Guangzhou 510631
- China
| | - Jia-Ni Qiu
- School of Life Science, South China Normal University
- Guangzhou 510631
- China
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Academy of Advanced Optoelectronics, South China Normal University
- Guangzhou 510006
| | - Jing-Min Huang
- School of Life Science, South China Normal University
- Guangzhou 510631
- China
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Academy of Advanced Optoelectronics, South China Normal University
- Guangzhou 510006
| | - Ming-Chao Li
- School of Life Science, South China Normal University
- Guangzhou 510631
- China
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Academy of Advanced Optoelectronics, South China Normal University
- Guangzhou 510006
| | - Yan-Qing Guan
- School of Life Science, South China Normal University
- Guangzhou 510631
- China
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Academy of Advanced Optoelectronics, South China Normal University
- Guangzhou 510006
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24
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Ichikawa S, Shimokawa N, Takagi M, Kitayama Y, Takeuchi T. Size-dependent uptake of electrically neutral amphipathic polymeric nanoparticles by cell-sized liposomes and an insight into their internalization mechanism in living cells. Chem Commun (Camb) 2018; 54:4557-4560. [DOI: 10.1039/c8cc00977e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The size-dependent uptake of amphipathic uncharged-nanoparticles in cell-sized liposomes is emerging as a new insight into their internalization mechanism in living cells.
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Affiliation(s)
- S. Ichikawa
- Graduate School of Engineering
- Kobe University
- Kobe 657-8501
- Japan
| | - N. Shimokawa
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Ishikawa 923-1292
- Japan
| | - M. Takagi
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Ishikawa 923-1292
- Japan
| | - Y. Kitayama
- Graduate School of Engineering
- Kobe University
- Kobe 657-8501
- Japan
| | - T. Takeuchi
- Graduate School of Engineering
- Kobe University
- Kobe 657-8501
- Japan
- Medical Device Fabrication Engineering Center
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25
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Fan W, Xia D, Zhu Q, Li X, He S, Zhu C, Guo S, Hovgaard L, Yang M, Gan Y. Functional nanoparticles exploit the bile acid pathway to overcome multiple barriers of the intestinal epithelium for oral insulin delivery. Biomaterials 2018; 151:13-23. [DOI: 10.1016/j.biomaterials.2017.10.022] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 10/10/2017] [Accepted: 10/11/2017] [Indexed: 02/06/2023]
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26
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Harloff-Helleberg S, Nielsen LH, Nielsen HM. Animal models for evaluation of oral delivery of biopharmaceuticals. J Control Release 2017; 268:57-71. [DOI: 10.1016/j.jconrel.2017.09.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 09/06/2017] [Accepted: 09/15/2017] [Indexed: 12/20/2022]
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27
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Hejjaji EM, Smith AM, Morris GA. Designing chitosan-tripolyphosphate microparticles with desired size for specific pharmaceutical or forensic applications. Int J Biol Macromol 2017; 95:564-573. [DOI: 10.1016/j.ijbiomac.2016.11.092] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 11/17/2016] [Accepted: 11/23/2016] [Indexed: 11/28/2022]
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Micro- and nano-carrier systems: The non-invasive and painless local administration strategies for disease therapy in mucosal tissues. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:153-171. [DOI: 10.1016/j.nano.2016.08.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 08/05/2016] [Accepted: 08/17/2016] [Indexed: 12/12/2022]
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29
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Steichen S, O'Connor C, Peppas NA. Development of a P((MAA-co-NVP)-g-EG) Hydrogel Platform for Oral Protein Delivery: Effects of Hydrogel Composition on Environmental Response and Protein Partitioning. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600266] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/29/2016] [Indexed: 01/14/2023]
Affiliation(s)
- Stephanie Steichen
- Department of Biomedical Engineering; The University of Texas at Austin; 107 West Dean Keeton Street Stop C0800 Austin TX 78712 USA
- Institute for Biomaterials; Drug Delivery, and Regenerative Medicine; The University of Texas at Austin; 107 West Dean Keeton Street Stop C0800 Austin TX 78712 USA
| | - Colleen O'Connor
- Department of Biomedical Engineering; The University of Texas at Austin; 107 West Dean Keeton Street Stop C0800 Austin TX 78712 USA
- Institute for Biomaterials; Drug Delivery, and Regenerative Medicine; The University of Texas at Austin; 107 West Dean Keeton Street Stop C0800 Austin TX 78712 USA
| | - Nicholas A. Peppas
- Department of Biomedical Engineering; The University of Texas at Austin; 107 West Dean Keeton Street Stop C0800 Austin TX 78712 USA
- Institute for Biomaterials; Drug Delivery, and Regenerative Medicine; The University of Texas at Austin; 107 West Dean Keeton Street Stop C0800 Austin TX 78712 USA
- McKetta Department of Chemical Engineering; The University of Texas at Austin; 200 East Dean Keeton Street Stop C0400 Austin TX 78712 USA
- Department of Surgery and Perioperative Care; Dell Medical School; The University of Texas at Austin; 1501 Red River Street Austin TX 78702 USA
- Division of Pharmaceutics; College of Pharmacy; The University of Texas at Austin; 2409 University Avenue Austin TX 78712 USA
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30
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Nanofabrication Techniques and Their Applications in Drug Delivery. Drug Deliv 2016. [DOI: 10.1201/9781315382579-20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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31
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Nanostructured materials for ocular delivery: nanodesign for enhanced bioadhesion, transepithelial permeability and sustained delivery. Ther Deliv 2016; 6:1365-76. [PMID: 26652282 DOI: 10.4155/tde.15.75] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Effective drug delivery to the eye is an ongoing challenge due to poor patient compliance coupled with numerous physiological barriers. Eye drops for the front of the eye and ocular injections for the back of the eye are the most prevalent delivery methods, both of which require relatively frequent administration and are burdensome to the patient. Novel drug delivery techniques stand to drastically improve safety, efficacy and patient compliance for ocular therapeutics. Remarkable advances in nanofabrication technologies make the application of nanostructured materials to ocular drug delivery possible. This article focuses on the use of nanostructured materials with nanoporosity or nanotopography for ocular delivery. Specifically, we discuss nanotopography for enhanced bioadhesion and permeation and nanoporous materials for controlled release drug delivery. As examples, application of polymeric nanostructures for greater transepithelial permeability, nanostructured microparticles for enhanced preocular retention time and nanoporous membranes for tuning drug release profile are covered.
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32
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Uskoković V, Wu VM. Calcium Phosphate as a Key Material for Socially Responsible Tissue Engineering. MATERIALS 2016; 9. [PMID: 27347359 PMCID: PMC4917371 DOI: 10.3390/ma9060434] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Socially responsible technologies are designed while taking into consideration the socioeconomic, geopolitical and environmental limitations of regions in which they will be implemented. In the medical context, this involves making therapeutic platforms more accessible and affordable to patients in poor regions of the world wherein a given disease is endemic. This often necessitates going against the reigning trend of making therapeutic nanoparticles ever more structurally complex and expensive. However, studies aimed at simplifying materials and formulations while maintaining the functionality and therapeutic response of their more complex counterparts seldom provoke a significant interest in the scientific community. In this review we demonstrate that such compositional simplifications are meaningful when it comes to the design of a solution for osteomyelitis, a disease that is in its natural, non-postoperative form particularly prevalent in the underdeveloped parts of the world wherein poverty, poor sanitary conditions, and chronically compromised defense lines of the immune system are the norm. We show that calcium phosphate nanoparticles, which are inexpensive to make, could be chemically designed to possess the same functionality as a hypothetic mixture additionally composed of: (a) a bone growth factor; (b) an antibiotic for prophylactic or anti-infective purposes; (c) a bisphosphonate as an antiresorptive compound; (d) a viral vector to enable the intracellular delivery of therapeutics; (e) a luminescent dye; (f) a radiographic component; (g) an imaging contrast agent; (h) a magnetic domain; and (i) polymers as viscous components enabling the injectability of the material and acting as carriers for the sustained release of a drug. In particular, calcium phosphates could: (a) produce tunable drug release profiles; (b) take the form of viscous and injectable, self-setting pastes; (c) be naturally osteo-inductive and inhibitory for osteoclastogenesis; (d) intracellularly deliver bioactive compounds; (e) accommodate an array of functional ions; (f) be processed into macroporous constructs for tissue engineering; and (g) be naturally antimicrobial. All in all, we see in calcium phosphates the presence of a protean nature whose therapeutic potentials have been barely tapped into.
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Affiliation(s)
- Vuk Uskoković
- Department of Bioengineering, University of Illinois, Chicago, IL 60607-7052, USA;
- Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA 92618-1908, USA
- Correspondence: or ; Tel.: +1-415-412-0233
| | - Victoria M. Wu
- Department of Bioengineering, University of Illinois, Chicago, IL 60607-7052, USA;
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Chen L, An HZ, Haghgooie R, Shank AT, Martel JM, Toner M, Doyle PS. Flexible Octopus-Shaped Hydrogel Particles for Specific Cell Capture. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:2001-2008. [PMID: 26929053 PMCID: PMC4903076 DOI: 10.1002/smll.201600163] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Indexed: 05/12/2023]
Abstract
Multiarm hydrogel microparticles with varying geometry are fabricated to specifically capture cells expressing epithelial cell adhesion molecule. Results show that particle shape influences cell-capture efficiency due to differences in surface area, hydrodynamic effects, and steric constraints. These findings can lead to improved particle design for cell separation and diagnostic applications.
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Affiliation(s)
- Lynna Chen
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Harry Z An
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Ramin Haghgooie
- General Fluidics, 34 Anderson St., Ste 5, Boston, MA 02114, USA
| | - Aaron T Shank
- Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Building 114, 16th Street, Charlestown, MA 02129, USA
| | - Joseph M Martel
- Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Building 114, 16th Street, Charlestown, MA 02129, USA
| | - Mehmet Toner
- Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Building 114, 16th Street, Charlestown, MA 02129, USA
| | - Patrick S Doyle
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
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Lee K, Lingampalli N, Pisano AP, Murthy N, So H. Physical Delivery of Macromolecules using High-Aspect Ratio Nanostructured Materials. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23387-97. [PMID: 26479334 PMCID: PMC6070377 DOI: 10.1021/acsami.5b05520] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
There is great need for the development of an efficient delivery method of macromolecules, including nucleic acids, proteins, and peptides, to cell cytoplasm without eliciting toxicity or changing cell behavior. High-aspect ratio nanomaterials have addressed many challenges present in conventional methods, such as cell membrane passage and endosomal degradation, and have shown the feasibility of efficient high-throughput macromolecule delivery with minimal perturbation of cells. This review describes the recent advances of in vitro and in vivo physical macromolecule delivery with high-aspect ratio nanostructured materials and summarizes the synthesis methods, material properties, relevant applications, and various potential directions.
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Affiliation(s)
- Kunwoo Lee
- Department of Bioengineering, Berkeley Sensor & Actuator Center, University of California, Berkeley, California 94720, United States
| | - Nithya Lingampalli
- Department of Bioengineering, Berkeley Sensor & Actuator Center, University of California, Berkeley, California 94720, United States
| | - Albert P. Pisano
- Department of Mechanical Engineering, Berkeley Sensor & Actuator Center, University of California, Berkeley, California 94720, United States
- Jacobs School of Engineering, University of California, San Diego, California 92093, United States
| | - Niren Murthy
- Department of Bioengineering, Berkeley Sensor & Actuator Center, University of California, Berkeley, California 94720, United States
| | - Hongyun So
- Department of Mechanical Engineering, Berkeley Sensor & Actuator Center, University of California, Berkeley, California 94720, United States
- Corresponding Author:
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35
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Fox CB, Kim J, Le LV, Nemeth CL, Chirra HD, Desai TA. Micro/nanofabricated platforms for oral drug delivery. J Control Release 2015; 219:431-444. [PMID: 26244713 DOI: 10.1016/j.jconrel.2015.07.033] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/29/2015] [Accepted: 07/30/2015] [Indexed: 12/18/2022]
Abstract
The oral route of drug administration is most preferred due to its ease of use, low cost, and high patient compliance. However, the oral uptake of many small molecule drugs and biotherapeutics is limited by various physiological barriers, and, as a result, drugs suffer from issues with low solubility, low permeability, and degradation following oral administration. The flexibility of micro- and nanofabrication techniques has been used to create drug delivery platforms designed to address these barriers to oral drug uptake. Specifically, micro/nanofabricated devices have been designed with planar, asymmetric geometries to promote device adhesion and unidirectional drug release toward epithelial tissue, thereby prolonging drug exposure and increasing drug permeation. Furthermore, surface functionalization, nanotopography, responsive drug release, motion-based responses, and permeation enhancers have been incorporated into such platforms to further enhance drug uptake. This review will outline the application of micro/nanotechnology to specifically address the physiological barriers to oral drug delivery and highlight technologies that may be incorporated into these oral drug delivery systems to further enhance drug uptake.
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Affiliation(s)
- Cade B Fox
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158, USA
| | - Jean Kim
- UC Berkeley & UCSF Graduate Program in Bioengineering, UCSF Mission Bay Campus, San Francisco, CA 94158, USA
| | - Long V Le
- UC Berkeley & UCSF Graduate Program in Bioengineering, UCSF Mission Bay Campus, San Francisco, CA 94158, USA
| | - Cameron L Nemeth
- UC Berkeley & UCSF Graduate Program in Bioengineering, UCSF Mission Bay Campus, San Francisco, CA 94158, USA
| | - Hariharasudhan D Chirra
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158, USA
| | - Tejal A Desai
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158, USA; UC Berkeley & UCSF Graduate Program in Bioengineering, UCSF Mission Bay Campus, San Francisco, CA 94158, USA.
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36
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Peng F, Cao Z, Ji X, Chu B, Su Y, He Y. Silicon nanostructures for cancer diagnosis and therapy. Nanomedicine (Lond) 2015; 10:2109-23. [DOI: 10.2217/nnm.15.53] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The emergence of nanotechnology suggests new and exciting opportunities for early diagnosis and therapy of cancer. During the recent years, silicon-based nanomaterials featuring unique properties have received great attention, showing high promise for myriad biological and biomedical applications. In this review, we will particularly summarize latest representative achievements on the development of silicon nanostructures as a powerful platform for cancer early diagnosis and therapy. First, we introduce the silicon nanomaterial-based biosensors for detecting cancer markers (e.g., proteins, tumor-suppressor genes and telomerase activity, among others) with high sensitivity and selectivity under molecular level. Then, we summarize in vitro and in vivo applications of silicon nanostructures as efficient nanoagents for cancer therapy. Finally, we discuss the future perspective of silicon nanostructures for cancer diagnosis and therapy.
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Affiliation(s)
- Fei Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Zhaohui Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Xiaoyuan Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Binbin Chu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Yuanyuan Su
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Yao He
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
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37
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Fox CB, Chirra HD, Desai TA. Planar bioadhesive microdevices: a new technology for oral drug delivery. Curr Pharm Biotechnol 2015; 15:673-83. [PMID: 25219863 DOI: 10.2174/1389201015666140915152706] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 06/01/2014] [Accepted: 06/23/2014] [Indexed: 12/12/2022]
Abstract
The oral route is the most convenient and least expensive route of drug administration. Yet, it is accompanied by many physiological barriers to drug uptake including low stomach pH, intestinal enzymes and transporters, mucosal barriers, and high intestinal fluid shear. While many drug delivery systems have been developed for oral drug administration, the physiological components of the gastro intestinal tract remain formidable barriers to drug uptake. Recently, microfabrication techniques have been applied to create micron-scale devices for oral drug delivery with a high degree of control over microdevice size, shape, chemical composition, drug release profile, and targeting ability. With precise control over device properties, microdevices can be fabricated with characteristics that provide increased adhesion for prolonged drug exposure, unidirectional release which serves to avoid luminal drug loss and enhance drug permeation, and protection of a drug payload from the harsh environment of the intestinal tract. Here we review the recent developments in microdevice technology and discuss the potential of these devices to overcome unsolved challenges in oral drug delivery.
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Affiliation(s)
| | | | - Tejal A Desai
- 1700 4th Street, Byers Hall 204, Box 2520, San Francisco, CA 94158, USA.
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38
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Wang H, Lee DK, Chen KY, Chen JY, Zhang K, Silva A, Ho CM, Ho D. Mechanism-independent optimization of combinatorial nanodiamond and unmodified drug delivery using a phenotypically driven platform technology. ACS NANO 2015; 9:3332-3344. [PMID: 25689511 DOI: 10.1021/acsnano.5b00638] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Combination chemotherapy can mediate drug synergy to improve treatment efficacy against a broad spectrum of cancers. However, conventional multidrug regimens are often additively determined, which have long been believed to enable good cancer-killing efficiency but are insufficient to address the nonlinearity in dosing. Despite improved clinical outcomes by combination treatment, multi-objective combination optimization, which takes into account tumor heterogeneity and balance of efficacy and toxicity, remains challenging given the sheer magnitude of the combinatorial dosing space. To enhance the properties of the therapeutic agents, the field of nanomedicine has realized novel drug delivery platforms that can enhance therapeutic efficacy and safety. However, optimal combination design that incorporates nanomedicine agents still faces the same hurdles as unmodified drug administration. The work reported here applied a powerful phenotypically driven platform, termed feedback system control (FSC), that systematically and rapidly converges upon a combination consisting of three nanodiamond-modified drugs and one unmodified drug that is simultaneously optimized for efficacy against multiple breast cancer cell lines and safety against multiple control cell lines. Specifically, the therapeutic window achieved from an optimally efficacious and safe nanomedicine combination was markedly higher compared to that of an optimized unmodified drug combination and nanodiamond monotherapy or unmodified drug administration. The phenotypically driven foundation of FSC implementation does not require any cellular signaling pathway data and innately accounts for population heterogeneity and nonlinear biological processes. Therefore, FSC is a broadly applicable platform for both nanotechnology-modified and unmodified therapeutic optimizations that represent a promising path toward phenotypic personalized medicine.
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Affiliation(s)
- Hann Wang
- †Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, ‡Division of Oral Biology and Medicine, School of Dentistry, §The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, ∥California NanoSystems Institute, ⊥Jonsson Comprehensive Cancer Center, #Department of Chemical and Biomolecular Engineering, and ¶Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
| | - Dong-Keun Lee
- †Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, ‡Division of Oral Biology and Medicine, School of Dentistry, §The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, ∥California NanoSystems Institute, ⊥Jonsson Comprehensive Cancer Center, #Department of Chemical and Biomolecular Engineering, and ¶Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
| | - Kai-Yu Chen
- †Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, ‡Division of Oral Biology and Medicine, School of Dentistry, §The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, ∥California NanoSystems Institute, ⊥Jonsson Comprehensive Cancer Center, #Department of Chemical and Biomolecular Engineering, and ¶Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
| | - Jing-Yao Chen
- †Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, ‡Division of Oral Biology and Medicine, School of Dentistry, §The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, ∥California NanoSystems Institute, ⊥Jonsson Comprehensive Cancer Center, #Department of Chemical and Biomolecular Engineering, and ¶Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
| | - Kangyi Zhang
- †Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, ‡Division of Oral Biology and Medicine, School of Dentistry, §The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, ∥California NanoSystems Institute, ⊥Jonsson Comprehensive Cancer Center, #Department of Chemical and Biomolecular Engineering, and ¶Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
| | - Aleidy Silva
- †Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, ‡Division of Oral Biology and Medicine, School of Dentistry, §The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, ∥California NanoSystems Institute, ⊥Jonsson Comprehensive Cancer Center, #Department of Chemical and Biomolecular Engineering, and ¶Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
| | - Chih-Ming Ho
- †Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, ‡Division of Oral Biology and Medicine, School of Dentistry, §The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, ∥California NanoSystems Institute, ⊥Jonsson Comprehensive Cancer Center, #Department of Chemical and Biomolecular Engineering, and ¶Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
| | - Dean Ho
- †Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, ‡Division of Oral Biology and Medicine, School of Dentistry, §The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, ∥California NanoSystems Institute, ⊥Jonsson Comprehensive Cancer Center, #Department of Chemical and Biomolecular Engineering, and ¶Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
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39
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Xie X, Melosh NA. Fabrication of sub-cell size “spiky” nanoparticles and their interfaces with biological cells. J Mater Chem B 2015; 3:5155-5160. [DOI: 10.1039/c5tb00452g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Synthesis of hierarchical “spiky” nanoparticles covered with stiff nanowires for biological cellular interface and engulfment.
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Affiliation(s)
- Xi Xie
- Department of Materials Science and Engineering
- Stanford University
- Stanford
- USA
- David H. Koch Institute for Integrative Cancer Research
| | - Nicholas A. Melosh
- Department of Materials Science and Engineering
- Stanford University
- Stanford
- USA
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40
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Jung HJ, Pak PJ, Park SH, Ju JE, Kim JS, Lee HS, Chung N. Silver wire amplifies the signaling mechanism for IL-1beta production more than silver submicroparticles in human monocytic THP-1 cells. PLoS One 2014; 9:e112256. [PMID: 25396430 PMCID: PMC4232372 DOI: 10.1371/journal.pone.0112256] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Accepted: 10/03/2014] [Indexed: 12/20/2022] Open
Abstract
Silver materials have been widely used in diverse fields. However, their toxicity and their mechanism, especially in different forms, have not been studied sufficiently. Thus, cytotoxicity, apoptosis, and interleukin-1beta (IL-1β) production were investigated using macrophage-like THP-1 cells in the presence of Ag microparticles (AgMPs, 2.7 µm), Ag submicroparticles (AgSMPs, 150 nm), and Ag wires (AgWs, 274 nm×5.3 µm). The levels of cytotoxicity, apoptosis, and IL-1β production by AgWs were higher than those by the other two AgSMPs and AgMPs. This trend was also observed with each step of the signaling mechanism for IL-1β production, which is a single pathway affiliated with ROS generation or lysosomal rupture or both, cathepsin B, caspase-1 (NALP3 inflammasome), and finally IL-1β production in THP-1 cells. All these results suggest that, for development of safe and effective silver materials, the shape or form of silver materials should be considered, especially for macrophage cell lines because epithelial cell lines are not overly sensitive to silver materials.
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Affiliation(s)
- Hye Jin Jung
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Pyo June Pak
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Sung Hyo Park
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Jae Eun Ju
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Joong-Su Kim
- Bioindustry Process Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience and Biotechnology, Jeoneup, Korea
| | - Hoi-Seon Lee
- College of Agriculture and Life Science, Chonbuk National University, Jeonju, Korea
- * E-mail: (NC); (H-SL)
| | - Namhyun Chung
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
- * E-mail: (NC); (H-SL)
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41
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Wang H, Mararenko A, Cao G, Gai Z, Hong K, Banerjee P, Zhou S. Multifunctional 1D magnetic and fluorescent nanoparticle chains for enhanced MRI, fluorescent cell imaging, and combined photothermal/chemotherapy. ACS APPLIED MATERIALS & INTERFACES 2014; 6:15309-15317. [PMID: 25127411 DOI: 10.1021/am503777k] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
While the assembled 1D magnetic nanoparticle (NP) chains have demonstrated synergistic magnetic effects from the individual NPs, it is essential to prepare new 1D NP chains that can combine the magnetism with other important material properties for multifunctional applications. This paper reports the fabrication and multifunctional investigation of a new type of 1D NP chains that combine the magnetic properties with fluorescent properties, photothermal conversion ability, and drug carrier function. The building block NPs are composed of magnetic Fe(3)O(4) nanocrystals clustered in the core and fluorescent carbon dots embedded in the mesoporous carbon shell with hydroxyl/carboxyl groups anchored on their surface. These NPs can assemble under the induction of external magnetic field and form stable 1D NP chains of diameter ∼ 90 nm and length ∼ 3 μm via the hydrogen bonding and π-π stacking linkage of the carbon shell. The resulted 1D hybrid NP chains not only demonstrate much higher magnetic resonance imaging (MRI) contrasting ability than the dispersed building block NPs, but also enter into intracellular region and light up the B16F10 cells under a laser excitation with strong and stable fluorescence. While the mesoporous carbon shell provides high drug loading capacity, the embedded fluorescent carbon dots convert near-infrared (NIR) light to heat, and hence kill the tumor cells efficiently and enhance the drug release rate to further improve the therapeutic efficacy under NIR irradiation. Such designed 1D magnetic-fluorescent hybrid NP chains with enhanced MRI contrast, fluorescent imaging ability, and combined chemo-/photothermal therapeutic ability have great potential for various biomedical applications.
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Affiliation(s)
- Hui Wang
- Department of Chemistry of The College of Staten Island and The Graduate Center, The City University of New York , Staten Island, New York 10314, United States
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42
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Lin S, Wang X, Ji Z, Chang CH, Dong Y, Meng H, Liao YP, Wang M, Song TB, Kohan S, Xia T, Zink JI, Lin S, Nel AE. Aspect ratio plays a role in the hazard potential of CeO2 nanoparticles in mouse lung and zebrafish gastrointestinal tract. ACS NANO 2014; 8:4450-64. [PMID: 24720650 PMCID: PMC4059546 DOI: 10.1021/nn5012754] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
We have previously demonstrated that there is a relationship between the aspect ratio (AR) of CeO2 nanoparticles and in vitro hazard potential. CeO2 nanorods with AR ≥ 22 induced lysosomal damage and progressive effects on IL-1β production and cytotoxicity in the human myeloid cell line, THP-1. In order to determine whether this toxicological paradigm for long aspect ratio (LAR) CeO2 is also relevant in vivo, we performed comparative studies in the mouse lung and gastrointestinal tract (GIT) of zebrafish larvae. Although oropharyngeal aspiration could induce acute lung inflammation for CeO2 nanospheres and nanorods, only the nanorods with the highest AR (C5) induced significant IL-1β and TGF-β1 production in the bronchoalveolar lavage fluid at 21 days but did not induce pulmonary fibrosis. However, after a longer duration (44 days) exposure to 4 mg/kg of the C5 nanorods, more collagen production was seen with CeO2 nanorods vs nanospheres after correcting for Ce lung burden. Using an oral-exposure model in zebrafish larvae, we demonstrated that C5 nanorods also induced significant growth inhibition, a decrease in body weight, and delayed vertebral calcification. In contrast, CeO2 nanospheres and shorter nanorods had no effect. Histological and transmission electron microscopy analyses showed that the key injury mechanism of C5 was in the epithelial lining of the GIT, which demonstrated blunted microvilli and compromised digestive function. All considered, these data demonstrate that, similar to cellular studies, LAR CeO2 nanorods exhibit more toxicity in the lung and GIT, which could be relevant to inhalation and environmental hazard potential.
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Affiliation(s)
- Sijie Lin
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Xiang Wang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Zhaoxia Ji
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Chong Hyun Chang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Yuan Dong
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, California 90095, United States
| | - Huan Meng
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California 90095, United States
| | - Yu-Pei Liao
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California 90095, United States
| | - Meiying Wang
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California 90095, United States
| | - Tze-Bin Song
- Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, United States
| | - Sirus Kohan
- Brain Research Institute, University of California, Los Angeles, California 90095, United States
| | - Tian Xia
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California 90095, United States
| | - Jeffrey I. Zink
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Shuo Lin
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, California 90095, United States
| | - André E. Nel
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California 90095, United States
- Corresponding Author: Andre Nel, M.D., Department of Medicine, Division of NanoMedicine, UCLA School of Medicine, 52-175 CHS, 10833 Le Conte Ave, Los Angeles, CA 90095-1680. Tel: (310) 825-6620, Fax: (310) 206-8107,
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Liu X, Wang S. Three-dimensional nano-biointerface as a new platform for guiding cell fate. Chem Soc Rev 2014; 43:2385-401. [DOI: 10.1039/c3cs60419e] [Citation(s) in RCA: 231] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The recent explorations of three-dimensional nano-biointerfaces for cell-related fundamental biological studies and advanced biomedical applications are reviewed.
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Affiliation(s)
- Xueli Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry Chinese Academy of Sciences
- Beijing 100190, P. R. China
- University of Chinese Academy of Sciences
- Beijing 100049, P. R. China
| | - Shutao Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Institute of Chemistry Chinese Academy of Sciences
- Beijing 100190, P. R. China
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Park CG, Kim MJ, Park M, Choi SY, Lee SH, Lee JE, Shin GS, Park KH, Choy YB. Nanostructured mucoadhesive microparticles for enhanced preocular retention. Acta Biomater 2014; 10:77-86. [PMID: 23978409 DOI: 10.1016/j.actbio.2013.08.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 08/02/2013] [Accepted: 08/14/2013] [Indexed: 01/22/2023]
Abstract
We describe nanostructured microparticles (NMs) containing a mucoadhesive polymer for enhanced preocular retention and consider them as potential carriers of drugs to the eye. These NMs are each composed of entangled nanofibers to give an enlarged specific surface area, and thus can better adhere to the preocular mucus surface. This physical design allows the microparticles still to be composed mainly of a wall material, poly(lactic-co-glycolic acid), as required for controlled drug delivery, while the effects of an additive, mucoadhesive material, polyethylene glycol, can be synergistically improved via the nanostructured morphology. Thus, when formulated in a dry tablet dosage form, the NMs in this work show more than a 10-fold increase in preocular retention in vivo compared to conventional spherical microparticles. Therefore, we conclude that these mucoadhesive NMs can reside on the preocular surface for a prolonged period, and thus appear to be a promising system for topical drug delivery to the eye.
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Affiliation(s)
- Chun Gwon Park
- Interdisciplinary Program in Bioengineering, College of Engineering, Seoul National University, Seoul 152-742, Republic of Korea
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Sakai-Kato K, Hidaka M, Un K, Kawanishi T, Okuda H. Physicochemical properties and in vitro intestinal permeability properties and intestinal cell toxicity of silica particles, performed in simulated gastrointestinal fluids. Biochim Biophys Acta Gen Subj 2013; 1840:1171-80. [PMID: 24361607 DOI: 10.1016/j.bbagen.2013.12.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 12/10/2013] [Accepted: 12/13/2013] [Indexed: 11/24/2022]
Abstract
BACKGROUND Amorphous silica particles with the primary dimensions of a few tens of nm, have been widely applied as additives in various fields including medicine and food. Especially, they have been widely applied in powders for making tablets and to coat tablets. However, their behavior and biological effects in the gastrointestinal tracts associated with oral administration remains unknown. METHODS Amorphous silica particles with diameters of 50, 100, and 200nm were incubated in the fasted-state and fed-state simulated gastric and intestinal fluids. The sizes, intracellular transport into Caco-2 cells (model cells for intestinal absorption), the Caco-2 monolayer membrane permeability, and the cytotoxicity against Caco-2 cells were then evaluated for the silica particles. RESULTS Silica particles agglomerated in fed-state simultaneous intestinal fluids. The agglomeration and increased particles size inhibited the particles' absorption into the Caco-2 cells or particles' transport through the Caco-2 cells. The in vitro cytotoxicity of silica particles was not observed when the average size was larger than 100nm, independent of the fluid and the concentration. CONCLUSION Our study indicated the effect of diet on the agglomeration of silica particles. The sizes of silica particles affected the particles' absorption into or transport through the Caco-2 cells, and cytotoxicity in vitro, depending on the various biological fluids. GENERAL SIGNIFICANCE The findings obtained from our study may offer valuable information to evaluate the behavior of silica particles in the gastrointestinal tracts or safety of medicines or foods containing these materials as additives.
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Affiliation(s)
- Kumiko Sakai-Kato
- Division of Drugs, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan.
| | - Masayuki Hidaka
- Division of Drugs, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Keita Un
- Division of Drugs, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Toru Kawanishi
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Haruhiro Okuda
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
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Abstract
The field of nanoscience has produced more hype than probably any other branch of materials science and engineering in its history. Still, the potentials of this new field largely lay undiscovered ahead of us; what we have learnt so far with respect to the peculiarity of physical processes on the nanoscale is only the tip of an iceberg. Elaborated in this critical review is the idea that the surge of interest in physical chemistry of phenomena at the nanoscale presents a natural consequence of the spatial refinement of the human ability to controllably manipulate the substratum of our physical reality. Examples are given to illustrate the sensitivity of material properties to grain size on the nanoscale, a phenomenon that directly contributed to the rise of nanoscience as a special field of scientific inquiry. Main systemic challenges faced by the present and future scientists in this field are also mentioned. In part, this perspective article resembles standing on the constantly expanding seashore of the coast of nanoscience and nanoengineering and envisioning the parts of the island where the most significant advances may be expected to occur and where, therefore, most of the attention of scientist in this field is to be directed: (a) crossing the gap between life science and materials science; (b) increasing experimentation sensitivity; (c) crisscrossing theory and experiments; and (d) conjoining top-down and bottom-up synthetic approaches. As for materials and the application areas discussed, a special emphasis is placed on calcium phosphate nanoparticles and their usage in controlled drug delivery devices and other applications of biomedical relevance. It is argued that the properties of nanoparticles as drug carriers often comprise the critical determinant for- the efficacy of the drug therapy. Therefore, the basic properties of nanoparticles to be optimized for the purpose of maximizing this efficacy are discussed: size, size distribution, morphology, polymorphic nature, crystallinity, biocompatibility, biodegradability, drug elution profiles, and aggregation propensity.
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Affiliation(s)
- Vuk Uskoković
- Therapeutic Micro and Nanotechnology Laboratory, Department of Bioengineering and Therapeutic Sciences, University of California, 1700 4th Street, San Francisco, CA 94158-2330, USA.
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Higuita-Castro N, Gallego-Perez D, Love K, Sands MR, Kaletunç G, Hansford DJ. Soft Lithography-Based Fabrication of Biopolymer Microparticles for Nutrient Microencapsulation. Ind Biotechnol (New Rochelle N Y) 2012. [DOI: 10.1089/ind.2012.0030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Natalia Higuita-Castro
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH
- Ohio Nanotech West Laboratory, The Ohio State University, Columbus, OH
| | - Daniel Gallego-Perez
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH
- Ohio Nanotech West Laboratory, The Ohio State University, Columbus, OH
| | - Kelley Love
- Abbott Nutrition Products Division, Columbus, OH
| | - Matthew R. Sands
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH
- Ohio Nanotech West Laboratory, The Ohio State University, Columbus, OH
| | - Gönül Kaletunç
- Department of Food, Agricultural and Biological Engineering, The Ohio State University, Columbus, OH
| | - Derek J. Hansford
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH
- Ohio Nanotech West Laboratory, The Ohio State University, Columbus, OH
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