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Xu M, Liao Z, Liu Y, Guo S, Hu H, Chen T, Wu Y, Wan S, Zhou M, Lu M, Jiluo S, Yao L, Pu X, Wang S, Fan Q. Preparation and optimization of poly (lactic-co-glycolic acid) rod-shaped particles in nano size range for paclitaxel delivery. Front Bioeng Biotechnol 2022; 10:1103990. [PMID: 36588954 PMCID: PMC9800425 DOI: 10.3389/fbioe.2022.1103990] [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: 11/21/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Nanoparticle shape has been acknowledged as an important design parameter due to its influence on nanoparticle interaction with biological systems. However, there is lacking of simple and scalable preparation technique for drug loaded non-spherical polymeric nanoparticles for a long time, thus hindering the potential applications. Although our previous research has modified the traditional emulsion solvent evaporation technique by adding guest molecules to prepare non-spherical poly (lactic-co-glycolic acid) (PLGA) particles, it is difficult to obtain nano-sized rods with minor axis less than 200 nm, which may have great potential in cancer therapy. Herein, in present research, the two-step ESE method was used and optimized to prepare poly (lactic-co-glycolic acid) nanorods for paclitaxel delivery. Firstly, the single-factor experiment was used to screen the influence of multi-factors including type of guest molecules, concentration of guest molecules, emulsification method, surfactant concentration, oil volume, poly (lactic-co-glycolic acid) concentration on the size and shape to determine the range of variables; based on the above range, a multi-factor and multi-level orthogonal experiment was designed. The formula is evaluated by the rod fabrication yield and the aspect ratio of major axis to minor axis. The results showed that the yield of nanorods in the optimal formula was 99% and the aspect ratio was 5.35 ± 2.05 with the minor axis of 135.49 ± 72.66 nm, and major axis of 657.77 ± 307.63 nm. In addition, the anti-cancer drug paclitaxel was successfully encapsulated in PLGA nanorods by the same technique. Our results not only enrich the ESE technique for preparing small sized poly (lactic-co-glycolic acid) nanorods, but also envision the potential application of nanorods for targeted cancer therapy with the delivery of paclitaxel.
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Affiliation(s)
- Mengyao Xu
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Zuyue Liao
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Yang Liu
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Shiwei Guo
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Haiyang Hu
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Tao Chen
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Yuesong Wu
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Shengli Wan
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Meiling Zhou
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Muhe Lu
- Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Shiluo Jiluo
- Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Lan Yao
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Xiaofeng Pu
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Shurong Wang
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China,*Correspondence: Shurong Wang, ; Qingze Fan,
| | - Qingze Fan
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,Department of Clinical Pharmacy, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China,*Correspondence: Shurong Wang, ; Qingze Fan,
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Bjørge IM, Correia CR, Mano JF. Hipster microcarriers: exploring geometrical and topographical cues of non-spherical microcarriers in biomedical applications. MATERIALS HORIZONS 2022; 9:908-933. [PMID: 34908074 DOI: 10.1039/d1mh01694f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Structure and organisation are key aspects of the native tissue environment, which ultimately condition cell fate via a myriad of processes, including the activation of mechanotransduction pathways. By modulating the formation of integrin-mediated adhesions and consequently impacting cell contractility, engineered geometrical and topographical cues may be introduced to activate downstream signalling and ultimately control cell morphology, proliferation, and differentiation. Microcarriers appear as attractive vehicles for cell-based tissue engineering strategies aiming to modulate this 3D environment, but also as vehicles for cell-free applications, given the ease in tuning their chemical and physical properties. In this review, geometry and topography are highlighted as two preponderant features in actively regulating interactions between cells and the extracellular matrix. While most studies focus on the 2D environment, we focus on how the incorporation of these strategies in 3D systems could be beneficial. The techniques applied to design 3D microcarriers with unique geometries and surface topographical cues are covered, as well as specific tissue engineering approaches employing these microcarriers. In fact, successfully achieving a functional histoarchitecture may depend on a combination of fine-tuned geometrically shaped microcarriers presenting intricately tailored topographical cues. Lastly, we pinpoint microcarrier geometry as a key player in cell-free biomaterial-based strategies, and its impact on drug release kinetics, the production of steerable microcarriers to target tumour cells, and as protein or antibody biosensors.
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Affiliation(s)
- Isabel M Bjørge
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal.
| | - Clara R Correia
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal.
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal.
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Malekpour Z, Akbari V, Varshosaz J, Taheri A. Preparation and characterization of poly (lactic-co-glycolic acid) nanofibers containing simvastatin coated with hyaluronic acid for using in periodontal tissue engineering. Biotechnol Prog 2021; 37:e3195. [PMID: 34296538 DOI: 10.1002/btpr.3195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 07/04/2021] [Accepted: 07/18/2021] [Indexed: 01/02/2023]
Abstract
Periodontal diseases can lead to soft tissue defects. Tissue engineering can provide functional replacements for damaged tissues. Recently, electrospun nanofibers have attracted great interest for tissue engineering and drug delivery applications. This has been revealed that statins exhibit positive impacts on the proliferation and regeneration of periodontal tissues. Electrospun simvastatin loaded poly (lactic-co-glycolic acid) (SIM-PLGA-NF) were prepared using electrospinning technique. Optimal conditions for preparation of SIM-PLGA-NF (PLGA concentration of 30 wt%, voltage of 15 kV, and flow rate of 1.5 ml h-1 ) were identified using a 23 factorial design. The optimized SIM-PLGA-NFs (diameter of 640.2 ± 32.5 nm and simvastatin entrapment efficacy of 99.6 ± 1.5%) were surface modified with 1% w/v hyaluronic acid solution (1%HA- SIM-PLGA-NF) to improve their compatibility with fibroblasts and potential application as a periodontal tissue engineering scaffold. HA-SIM-PLGA NFs were analyzed using SEM, FTIR, and XRD. 1%HA-SIM-PLGA-NF had uniform, bead-free and interwoven morphology, which is similar to the extracellular matrix. The mechanical performance of SIM-PLGA-NFs and release profile of simvastatin from these nanofibers have been also greatly improved after coating with HA. In vitro cellular tests showed that the proliferation, adhesion, and differentiation of fibroblast cells positively enhanced on the surface of 1%HA- SIM-PLGA-NF. These results demonstrate the potential application of 1%HA-SIM-PLGA-NFs as a scaffold for periodontal tissue engineering.
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Affiliation(s)
- Zahra Malekpour
- Novel Drug Delivery Systems Research Center, Department of Pharmaceutics, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Vajihe Akbari
- Department of Pharmaceutical Biotechnology and Isfahan Pharmaceutical Research Center, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jaleh Varshosaz
- Novel Drug Delivery Systems Research Center, Department of Pharmaceutics, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Azade Taheri
- Novel Drug Delivery Systems Research Center, Department of Pharmaceutics, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
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Polymeric non-spherical coarse microparticles fabricated by double emulsion-solvent evaporation for simvastatin delivery. Colloids Surf B Biointerfaces 2021; 199:111560. [DOI: 10.1016/j.colsurfb.2021.111560] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/18/2020] [Accepted: 01/03/2021] [Indexed: 01/24/2023]
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Liu M, Feng D, Liang X, Li M, Yang J, Wang H, Pang L, Zhou Z, Yang Z, Kong D, Li C. Old Dog New Tricks: PLGA Microparticles as an Adjuvant for Insulin Peptide Fragment-Induced Immune Tolerance against Type 1 Diabetes. Mol Pharm 2020; 17:3513-3525. [PMID: 32787283 DOI: 10.1021/acs.molpharmaceut.0c00525] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Poly[lactic-co-(glycolic acid)] (PLGA) is arguably one of the most versatile synthetic copolymers used for biomedical applications. In vivo delivery of multiple substances including cells, pharmaceutical compounds, and antigens has been achieved by using PLGA-based micro-/nanoparticles although, presently, the exact biological impact of PLGA particles on the immune system remains controversial. Type 1 diabetes (T1D) is one subtype of diabetes characterized by the attack of immune cells against self-insulin-producing pancreatic islet cells. Considering the autoimmune etiology of T1D and the recent use of PLGA particles for eliciting desired immune responses in various aspects of immunotherapy, for the present study, a combination of Ins29-23 peptide (a known autoantigen of T1D) and PLGA microparticles was selected for T1D prevention assessment in nonobese diabetic (NOD) mice, a well-known animal model with spontaneous development of T1D. Thus, inoculation of PLGA microparticles + Ins29-23 completely prevented T1D development, significantly better than untreated controls and mice treated by either PLGA microparticles or Ins29-23 per se. Subsequent mechanistic investigation further revealed a facilitative role of PLGA microparticles in immune tolerance induction. In summary, our data demonstrate an adjuvant potential of PLGA microparticles in tolerance induction and immune remodulation for effective prevention of autoimmune diseases such as T1D.
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Affiliation(s)
- Mohan Liu
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Centre, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Dandan Feng
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Centre, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Xiaoyu Liang
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Centre, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Min Li
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Centre, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Jing Yang
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Centre, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Hai Wang
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Centre, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Liyun Pang
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Centre, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Zhimin Zhou
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Centre, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Zhimou Yang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Centre of Chemical Science and Engineering, and National Institute of Functional Materials, Nankai University, Tianjin 300071, China
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Centre of Chemical Science and Engineering, and National Institute of Functional Materials, Nankai University, Tianjin 300071, China
| | - Chen Li
- Tianjin Key Laboratory of Biomedical Materials, Biomedical Barriers Research Centre, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
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Preparation, characterisation and in vitro and in vivo evaluation of CD44-targeted chondroitin sulphate-conjugated doxorubicin PLGA nanoparticles. Carbohydr Polym 2019; 213:17-26. [PMID: 30879657 DOI: 10.1016/j.carbpol.2019.02.084] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/25/2018] [Accepted: 02/25/2019] [Indexed: 12/21/2022]
Abstract
The purpose of this study was to ascertain the effect of chondroitin sulphate-modified doxorubicin (Dox) nanoparticles on enhancing the tumour-targeting effect and tumour growth inhibition effect of doxorubicin both in vitro and in vivo. The chondroitin sulphate-doxorubicin conjugate and its poly(lactic-co-glycolic acid) (PLGA) nanoparticles (CS-Dox-PLGA) were successfully synthesised, and then characterized by Fourier-transform infrared spectroscopy (FTIR), proton magnetic resonance (1HNMR), thermogravimetric analysis/differential scanning calorimetry (TGA/DSC), transmission electron microscope (TEM), zeta potential and laser light scattering. Taking advantage of the enhanced permeability and CD44-mediated endocytosis, CS-Dox-PLGA showed excellent capacity for penetrating the peripheral tumour barrier and into the nucleus of tumour cells. The CS-Dox-PLGA cellular uptake was improved and exhibited a significantly higher level of cytotoxicity in U251 cells. After intravenous administration, the CS-Dox-PLGA showed good pharmacokinetic properties and excellent U251-induced tumour inhibition with low cardiac toxicity. Therefore, CS-Dox-PLGA with low cardiac toxicity and good anti-tumour ability might be a better choice for Dox in clinical practice.
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Safari H, Adili R, Holinstat M, Eniola-Adefeso O. Modified two-step emulsion solvent evaporation technique for fabricating biodegradable rod-shaped particles in the submicron size range. J Colloid Interface Sci 2018; 518:174-183. [PMID: 29454188 DOI: 10.1016/j.jcis.2018.02.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 02/08/2018] [Accepted: 02/08/2018] [Indexed: 11/15/2022]
Abstract
HYPOTHESIS Though the emulsion solvent evaporation (ESE) technique has been previously modified to produce rod-shaped particles, it cannot generate small-sized rods for drug delivery applications due to the inherent coupling and contradicting requirements for the formation versus stretching of droplets. The separation of the droplet formation from the stretching step should enable the creation of submicron droplets that are then stretched in the second stage by manipulation of the system viscosity along with the surface-active molecule and oil-phase solvent. EXPERIMENTS A two-step ESE protocol is evaluated where oil droplets are formed at low viscosity followed by a step increase in the aqueous phase viscosity to stretch droplets. Different surface-active molecules and oil phase solvents were evaluated to optimize the yield of biodegradable PLGA rods. Rods were assessed for drug loading via an imaging agent and vascular-targeted delivery application via blood flow adhesion assays. FINDINGS The two-step ESE method generated PLGA rods with major and minor axis down to 3.2 µm and 700 nm, respectively. Chloroform and sodium metaphosphate was the optimal solvent and surface-active molecule, respectively, for submicron rod fabrication. Rods demonstrated faster release of Nile Red compared to spheres and successfully targeted an inflamed endothelium under shear flow in vitro and in vivo.
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Affiliation(s)
- Hanieh Safari
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, United States
| | - Reheman Adili
- Department of pharmacology, University of Michigan, Ann Arbor, MI 48019, United States
| | - Michael Holinstat
- Department of pharmacology, University of Michigan, Ann Arbor, MI 48019, United States; Department of Cardiovascular Medicine, Samuel and Jean Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI 48109, United States
| | - Omolola Eniola-Adefeso
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, United States; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, United States; Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, MI 48109, United States.
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Silk fibroin-coated PLGA dimpled microspheres for retarded release of simvastatin. Colloids Surf B Biointerfaces 2017; 158:112-118. [DOI: 10.1016/j.colsurfb.2017.06.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 06/05/2017] [Accepted: 06/22/2017] [Indexed: 12/30/2022]
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Fan Q, Qi F, Miao C, Yue H, Gong F, Wu J, Ma G, Su Z. Direct and controllable preparation of uniform PLGA particles with various shapes and surface morphologies. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.04.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yu Z, Yu M, Zhang Z, Hong G, Xiong Q. Bovine serum albumin nanoparticles as controlled release carrier for local drug delivery to the inner ear. NANOSCALE RESEARCH LETTERS 2014; 9:343. [PMID: 25114637 PMCID: PMC4106659 DOI: 10.1186/1556-276x-9-343] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2014] [Accepted: 06/26/2014] [Indexed: 05/23/2023]
Abstract
Nanoparticles have attracted increasing attention for local drug delivery to the inner ear recently. Bovine serum albumin (BSA) nanoparticles were prepared by desolvation method followed by glutaraldehyde fixation or heat denaturation. The nanoparticles were spherical in shape with an average diameter of 492 nm. The heat-denatured nanoparticles had good cytocompatibility. The nanoparticles could adhere on and penetrate through the round window membrane of guinea pigs. The nanoparticles were analyzed as drug carriers to investigate the loading capacity and release behaviors. Rhodamine B was used as a model drug in this paper. Rhodamine B-loaded nanoparticles showed a controlled release profile and could be deposited on the osseous spiral lamina. We considered that the bovine serum albumin nanoparticles may have potential applications in the field of local drug delivery in the treatment of inner ear disorders.
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Affiliation(s)
- Zhan Yu
- Department of ENT, The Second Artillery General Hospital of Chinese People's Liberation Army, 16 Xinjiekou Outer Avenue, Beijing 100088, People's Republic of China
| | - Min Yu
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, College of Basic Medicine, China Medical University, 92 Beier Road, Shenyang 110001, People's Republic of China
| | - Zhibao Zhang
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, The Key Laboratory of Biomedical Material of Tianjin, Tianjin 300192, People's Republic of China
| | - Ge Hong
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, The Key Laboratory of Biomedical Material of Tianjin, Tianjin 300192, People's Republic of China
| | - Qingqing Xiong
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, The Key Laboratory of Biomedical Material of Tianjin, Tianjin 300192, People's Republic of China
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Du B, Wang J, Zhou Z, Tang H, Li X, Liu Y, Zhang Q. Synthesis of silk-based microcapsules by desolvation and hybridization. Chem Commun (Camb) 2014; 50:4423-6. [DOI: 10.1039/c3cc49489f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Calejo MT, Kjøniksen AL, Maleki A, Nyström B, Sande SA. Microparticles based on hydrophobically modified chitosan as drug carriers. J Appl Polym Sci 2013. [DOI: 10.1002/app.40055] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maria Teresa Calejo
- Department of Pharmaceutics; School of Pharmacy; University of Oslo; Blindern N-0316 Oslo Norway
| | - Anna-Lena Kjøniksen
- Department of Pharmaceutics; School of Pharmacy; University of Oslo; Blindern N-0316 Oslo Norway
- Faculty of Engineering; Østfold University College; 1757 Halden Norway
| | - Atoosa Maleki
- Department of Chemistry; University of Oslo; N-0315 Oslo Norway
| | - Bo Nyström
- Department of Chemistry; University of Oslo; N-0315 Oslo Norway
| | - Sverre Arne Sande
- Department of Pharmaceutics; School of Pharmacy; University of Oslo; Blindern N-0316 Oslo Norway
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Zhou Z, Anselmo AC, Mitragotri S. Synthesis of protein-based, rod-shaped particles from spherical templates using layer-by-layer assembly. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:2723-2727. [PMID: 23580475 DOI: 10.1002/adma.201300220] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Indexed: 06/02/2023]
Abstract
Nanorods provide distinct advantages over their spherical counterparts for targeted drug delivery. Here, a novel method is described for the synthesis of biocompatible protein nanorods from spherical polystyrene templates using the layer-by-layer (LBL) technique. These nanorods can be used as a vehicle for the delivery of therapeutic agents to diseased sites.
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Affiliation(s)
- Zhimin Zhou
- Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA
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