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Li L, Sevciuc A, van Rijn P. Layered Double Hydroxides as an Intercalation System for Hydrophobic Molecules. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:3145. [PMID: 38133041 PMCID: PMC10745577 DOI: 10.3390/nano13243145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Layered double hydroxides (LDHs) have been extensively studied as drug delivery systems due to their favorable characteristics, including biocompatibility, high loading efficiency, and pH-responsive release. However, the current research predominantly focuses on LDHs as carriers for various anionic drugs, while there are only limited reports on LDHs as carriers for hydrophobic drugs. In this study, we successfully achieved the loading of a hydrophobic drug mimic, Nile red (NR), into LDHs using sodium dodecyl sulfate (SDS) as an intermediate storage medium. Furthermore, we optimized the experimental methods and varied the SDS/NR molar ratio to optimize this intercalation system. With an increase in the SDS/NR molar ratio from 2/1 to 32/1, the loading efficiency of LDH-SDS-NR for NR initially increased from 1.32% for LDH-SDS-NR_2/1 to 4.46% for LDH-SDS-NR_8/1. Then, the loading efficiency slightly decreased to 3.64% for LDH-SDS-NR_16.8/1, but then increased again to 6.31% for LDH-SDS-NR_32/1. We believe that the established method and the obtained results in this study broaden the application scope of LDHs as delivery systems for hydrophobic drugs and contribute to the further expansion of the application scope of LDHs.
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Affiliation(s)
- Lei Li
- Department of Biomedical Engineering-FB40, University of Groningen, University Medical Center Groningen, Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science-FB41, University of Groningen, University Medical Center Groningen, Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Anastasia Sevciuc
- Department of Biomedical Engineering-FB40, University of Groningen, University Medical Center Groningen, Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science-FB41, University of Groningen, University Medical Center Groningen, Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Patrick van Rijn
- Department of Biomedical Engineering-FB40, University of Groningen, University Medical Center Groningen, Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science-FB41, University of Groningen, University Medical Center Groningen, Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
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Parveen S, Ali MS, Al-Lohedan HA, Hoti N, Tabassum S. Molecular interaction of lysozyme with therapeutic drug azithromycin: Effect of sodium dodecyl sulfate on binding profile. Int J Biol Macromol 2023; 242:124844. [PMID: 37210056 DOI: 10.1016/j.ijbiomac.2023.124844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/22/2023]
Abstract
This paper describes an inclusive biophysical study elucidating the interaction of therapeutic drug azithromycin (Azith) with hen egg white lysozyme (HEWL). Spectroscopic and computational tools have been employed to study the interaction of Azith with HEWL at pH 7.4. The fluorescence quenching constant values (Ksv) exhibited a decrease with the increase in temperature which revealed the occurrence of static quenching mechanism between Azith and HEWL. The thermodynamic data demonstrated that hydrophobic interactions were predominantly involved in the Azith-HEWL interaction. The negative value of standard Gibbs free energy (ΔG°) stated that the Azith-HEWL complex formed via spontaneous molecular interactions. The effect of sodium dodecyl sulfate (SDS) surfactant monomers on the binding propensity of Azith with HEWL was insignificant at lower concentrations however the binding significantly decreased at increased concentrations of the former. Far-UV CD data revealed alteration in the secondary structure of HEWL in the presence of Azith and the overall HEWL conformation changed. Molecular docking results revealed that the binding of Azith with HEWL takes place through hydrophobic interactions and hydrogen bonds.
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Affiliation(s)
- Sabiha Parveen
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
| | - Mohd Sajid Ali
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, the Kingdom of Saudi Arabia
| | - Hamad A Al-Lohedan
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, the Kingdom of Saudi Arabia
| | | | - Sartaj Tabassum
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
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Shoaib T, Ha JM, Han Y, Chen WR, Do C. SANS characterization of time dependent, slow molecular exchange in an SDS micellar system. Phys Chem Chem Phys 2022; 24:16988-16996. [PMID: 35665787 DOI: 10.1039/d2cp00930g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have investigated the molecular exchange of sodium dodecyl sulfate (SDS) micelles in aqueous solution by time-resolved small angle neutron scattering (TR-SANS) measurements as a function of the surfactant and salt concentration. Starting with deuterated (d-SDS) and protonated (h-SDS) SDS micelles, surfactant exchange across the micelles leads to a randomized distribution of d-SDS and h-SDS within each micelle. By employing the contrast matching technique, we have studied this randomization process which is a direct measure of the molecular exchange of this system. Our results show that the randomization of the pure h-SDS and d-SDS micelles occurs in two steps: first, an almost instantaneous drop in the scattering intensity is observed where ∼80% of the micelles are randomized (contrast matched). After this, micelle randomization progresses slowly spanning over ∼100 hours. Importantly, we show that the kinetics in the second step are dominated by the formation of domains rich in either h-SDS, d-SDS and randomized (50 : 50 h-SDS : d-SDS). The slow exchange step is modeled via a phenomenological approach by drawing analogy to the Langmuir adsorption theory. Finally, the effects of the surfactant and salt concentrations on the instantaneous, and the time dependent randomization of SDS micelles are discussed.
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Affiliation(s)
- Tooba Shoaib
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
| | - Jae-Min Ha
- Samsung Electronics, Hwaseong, Gyeonggi 18448, Republic of Korea
| | - Youngkyu Han
- Basic Research & Innovation Division, Amorepacific Corporation R&D Center, Yongin 17074, Republic of Korea
| | - Wei-Ren Chen
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
| | - Changwoo Do
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
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Shao D, Gao Q, Sheng Y, Li S, Kong Y. Construction of a dual-responsive dual-drug delivery platform based on the hybrids of mesoporous silica, sodium hyaluronate, chitosan and oxidized sodium carboxymethyl cellulose. Int J Biol Macromol 2022; 202:37-45. [PMID: 35033530 DOI: 10.1016/j.ijbiomac.2022.01.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/21/2021] [Accepted: 01/06/2022] [Indexed: 12/16/2022]
Abstract
An intelligent drug delivery platform based on the hybrids of mesoporous silica nanoparticles (MSN), sodium hyaluronate (HA), chitosan (CS) and oxidized sodium carboxymethyl cellulose (oxCMC) is developed, which can be used for dual-responsive dual-drug delivery. Hydrophilic cytarabine (Cyt) is first loaded into the mesopores of the aminated MSN (NH2-MSN), which is encapsulated by the hydrogel of HA and cystamine (Cys) crosslinked via amidation. The Cyt encapsulated hydrogel which is denoted as Cyt/NH2-MSN/HA is co-encapsulated with hydrophobic methotrexate (MTX) into the hydrogel of CS and oxCMC resulted from Schiff base reaction. Since the acylhydrazone bonds (-HC=N-) between CS and oxCMC are sensitive to pH and the disulfide bonds (-S-S-) in Cys are sensitive to glutathione (GSH), the resultant dual-drug encapsulated hydrogel, denoted as Cyt/NH2-MSN/HA/MTX/CS/oxCMC, can be used for dual-responsive (pH and GSH) drug delivery. The results of cell viability demonstrate that the developed dual-drug encapsulated hydrogel has significantly higher efficacy of chemotherapy than that of single-drug (MTX or Cyt) encapsulated hydrogel.
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Affiliation(s)
- Dan Shao
- Department of PET Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Qiang Gao
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou 518000, China.
| | - Yanshan Sheng
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Shangji Li
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yong Kong
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
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Martinelli H, Tasca E, Andreozzi P, Libertone S, Ritacco H, Giustini M, Moya SE. Polarity studies of single polyelectrolyte layers in polyelectrolyte multilayers probed by steady state and life time doxorubicin fluorescence. J Colloid Interface Sci 2021; 607:153-162. [PMID: 34506997 DOI: 10.1016/j.jcis.2021.08.207] [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] [Received: 07/24/2021] [Revised: 08/20/2021] [Accepted: 08/30/2021] [Indexed: 11/27/2022]
Abstract
HYPOTHESIS Polarity in polyelectrolyte multilayers (PEMs) may vary from the inner to the top layers of the film as the charge compensation of the layers is more effective inside the PEMs than in outer layers. Doxorubicin hydrochloride (DX) is used here to sense polarity at the single polyelectrolyte level inside PEMS. EXPERIMENTAL DX is complexed electrostatically to a polyanion, either polystyrene sulfonate (PSS) or polyacrylic acid (PAA) and assembled at selected positions in a multilayer of the polyanion and polyallylamine hydrochloride (PAH) as polycation. Local polarity in the layer domain is evaluated through changes in the intensity ratio of the first to second band of spectra of DX (I1/I2 ratio) by steady state fluorescence, and by Lifetime fluorescence. FINDINGS PAH/PSS multilayers, show a polarity similar to water with DX/PSS as top layer, decreasing to I1/I2 ratios similar to organic solvents as the number of polyelectrolyte layers assembled on top increases. For PAH/PAA multilayers, polarity values reflect a more polar environment than water when DX/PAA is the top layer, remaining unaltered by the assembly of polyelectrolyte layers on top. Results show that different polar environments may be present in a PEM when considering polarity at the single layer level.
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Affiliation(s)
- Hernan Martinelli
- Instituto de Física del Sur (IFISUR-CONICET), Av. Alem 1253, Bahía Blanca (8000), Argentina; Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
| | - Elisamaria Tasca
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain; Chemistry Department, University "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy
| | - Patrizia Andreozzi
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain; Consorzio Sistemi a Grande Interfase, Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - Sara Libertone
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
| | - Hernan Ritacco
- Instituto de Física del Sur (IFISUR-CONICET), Av. Alem 1253, Bahía Blanca (8000), Argentina
| | - Mauro Giustini
- Chemistry Department, University "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy; Consorzio Sistemi a Grande Interfase, Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain; Chemistry Department, University "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy.
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Borbora A, Manna U. Impact of chemistry on the preparation and post-modification of multilayered hollow microcapsules. Chem Commun (Camb) 2021; 57:2110-2123. [PMID: 33587065 DOI: 10.1039/d0cc06917e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In the last few years, various chemical bondings and interactions were rationally adopted to develop different multilayered microcapsules, where the empty interior accommodated various important cargoes, including bioactive molecules, nanoparticles, antibodies, enzymes, etc., and the thin membrane protected/controlled the release of the loaded cargo. Eventually, such materials are with immense potential for a wide range of prospective applications related to targeted drug delivery, sensing, bio-imaging, developing biomimetic microreactors, and so on. The emphasis on the use of various chemistries for the development of functional and useful microcapsules is rarely illustrated in the literature in the past. In this feature article, the rational uses of different chemistries for (a) preparing and (b) post-modifying various functional microcapsules are accounted. The appropriate selection of chemical bondings/interactions, including electrostatic interaction, host-guest interaction, hydrogen bonding, and covalent bonding, allowed the integration of essential constituents during the layer-by-layer deposition process for 'in situ' tailoring of the relevant and diverse properties of the hollow microcapsules. Recently, different chemically reactive hollow microcapsules were also introduced through the strategic association of 'click chemistry', ring-opening azlactone reaction, thiol-ene reaction, and 1,4-conjugate addition reaction for facile and desired post covalent modifications of the multilayer membrane. The strategic selection of chemistry remained as the key basis to synthesize smart and useful microcapsules.
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Affiliation(s)
- Angana Borbora
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
| | - Uttam Manna
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India and Centre for Nanotechnology, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
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7
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Ru L, Wu N, Wei K, Zeng Y, Li Q, Weng C, Ren C, Ren B, Huo D, Li Y, Hu X, Qin Z, Fang Y, Zhu C, Liu Y. Improving cell survival and engraftment in vivo via layer-by-layer nanocoating of hESC-derived RPE cells. Stem Cell Res Ther 2020; 11:495. [PMID: 33239074 PMCID: PMC7687756 DOI: 10.1186/s13287-020-01986-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/20/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Human embryonic stem cell-derived retinal pigment epithelial (hESC-RPE) cell transplants have served as a cell therapy for treating retinal degenerative diseases. However, how to optimize the survival and engraftment of hESC-RPE cells is a great challenge. METHODS Here, we report hESC-RPE cells that are embedded with polyelectrolytes gelatin and alginate by layer-by-layer (LbL) self-assembly technique, based on the opposite charge of alternate layers. Cells were assessed for cell survival, immunogenicity, and function in vitro and in vivo. RESULTS This strategy obviously decreased the immunogenicity of hESC-RPE cells without affecting its activity. LbL-RPE cell transplants into the subretinal space of Royal College of Surgeons (RCS) rats optimized cell engraftment and decreased immunogenicity compared to untreated RPE cell transplants (immunosuppression was not used during the 21-week study). Visual-functional assay with electroretinogram recordings (ERGs) also showed higher B wave amplitudes in RCS rats with LbL-RPE cell transplants. CONCLUSIONS We demonstrate that transplanted LbL-RPE cells have better viability and grafting efficiency, optimized immunogenicity, and visual function. Therefore, LbL engineering is a promising method to increase the efficacy of hESC-RPE cell transplantation.
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Affiliation(s)
- Liyan Ru
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Nan Wu
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Keyu Wei
- Department of Anatomy, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, Burn and Combined injury, Department of Plastic and Aesthetic Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Yuxiao Zeng
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Qiyou Li
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Chuanhuang Weng
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Chunge Ren
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Bangqi Ren
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Da Huo
- Department of Anatomy, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, Burn and Combined injury, Department of Plastic and Aesthetic Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Yijian Li
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Xisu Hu
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Zuoxin Qin
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Yajie Fang
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China
| | - Chuhong Zhu
- Department of Anatomy, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, Burn and Combined injury, Department of Plastic and Aesthetic Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China.
| | - Yong Liu
- Department of Ophthalmology, Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Southwest Hospital, Chongqing, 400038, China.
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8
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Vadodaria SS, He Y, Mills T, Wildman R. Fabrication of surfactant-polyelectrolyte complex using valvejet 3D printing-aided colloidal self assembly. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124914] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Zhang J, Zhao IS, Yu OY, Li Q, Mei ML, Zhang C, Chu CH. Layer-by-layer self-assembly polyelectrolytes loaded with cyclic adenosine monophosphate enhances the osteo/odontogenic differentiation of stem cells from apical papilla. J Biomed Mater Res A 2020; 109:207-218. [PMID: 32441418 DOI: 10.1002/jbm.a.37017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 04/02/2020] [Accepted: 04/19/2020] [Indexed: 12/26/2022]
Abstract
Cyclic adenosine monophosphate (cAMP) is a second messenger involved in the dental regeneration. However, efficient long-lasting delivery of cAMP that is sufficient to mimic the in vivo microenvironment remains a major challenge. Here, cAMP was loaded in stem cells from apical papilla (SCAPs) using layer-by-layer self-assembly with gelatin and alginate polyelectrolytes (LBL-cAMP-SCAPs). LBL-cAMP-SCAPs expressed cAMP and increased the phosphorylation level of cAMP-response element-binding protein (CREB) which were evaluated by immunofluorescence and western blotting (WB). Enzyme-linked immunosorbent assay (ELISA) demonstrated that a sustained release of cAMP and vascular endothelial growth factor (VEGF) were present up to 14 days. Scanning electron microscopy (SEM) found LBL-coated SCAPs exhibited a spheroid-like morphology. CCK8 and live/dead staining showed that LBL treatment had no significant effect on cell proliferation and viability. LBL-cAMP-SCAPs enhanced mineralized nodule formation and up-regulated the mRNA levels of the osteogenesis-related genes, as well as related transcription factor-2 protein level which were revealed by Alizarin red staining, RT-PCR and WB, respectively. In conclusion, LBL self-assembly loaded with cAMP promoted the osteo/odontogenic differentiation of SCAPs, thereby providing a potential strategy for bioactive molecular delivery in dental regeneration.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Oral Disease Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China.,Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Irene ShuPing Zhao
- School of Stomatology, Shenzhen University Health Science Center, Shenzhen, China
| | - Ollie YiRu Yu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - QuanLi Li
- Key Laboratory of Oral Disease Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - May Lei Mei
- Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - ChengFei Zhang
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Chun Hung Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
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Shi P, Qin J, Wu X, Wang L, Zhang T, Yang D, Zan X, Appelhans D. A Facile and Universal Method to Efficiently Fabricate Diverse Protein Capsules for Multiple Potential Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39209-39218. [PMID: 31553877 DOI: 10.1021/acsami.9b15019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Proteins are considered to be one of the most important highly reproducible and monodisperse building blocks with specific functions in life sciences and material science. Protein capsules and their hybrids composed of protein-polymer conjugates have been intensively explored in drug delivery, catalysis, and cell-mimicking functions. Herein, we present a facile, universal, and efficient method to fabricate the diverse protein capsules, independent of the molecular weight (Mw), isoelectric points (IEP), wettability, amino acid sequence, and functional domains of enumerated proteins. The protein capsules were well characterized by various techniques. Furthermore, their ability to store the original protein functionality was demonstrated, which was mainly embodied in their enzyme responsiveness and good biocompatibility in vitro and in vivo. We believe that these protein capsules have multiple potential applications such as in drug delivery, tissue engineering, catalysis, and other application fields.
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Affiliation(s)
- Pengzhong Shi
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering , Wenzhou Medical University , Wenzhou , Zhejiang Province 325035 , P. R. China
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang Province 325001 , P. R. China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang Province 325001 , P. R. China
| | - Jianghui Qin
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering , Wenzhou Medical University , Wenzhou , Zhejiang Province 325035 , P. R. China
| | - Xiaoxiao Wu
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering , Wenzhou Medical University , Wenzhou , Zhejiang Province 325035 , P. R. China
| | - Liwen Wang
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering , Wenzhou Medical University , Wenzhou , Zhejiang Province 325035 , P. R. China
| | - Tinghong Zhang
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang Province 325001 , P. R. China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang Province 325001 , P. R. China
| | - Dejun Yang
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang Province 325001 , P. R. China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang Province 325001 , P. R. China
| | - Xingjie Zan
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering , Wenzhou Medical University , Wenzhou , Zhejiang Province 325035 , P. R. China
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang Province 325001 , P. R. China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang Province 325001 , P. R. China
| | - Dietmar Appelhans
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , Dresden 01069 , Germany
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11
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Cytotoxicity and in vitro evaluation of whey protein-based hydrogels for diabetes mellitus treatment. INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY 2019. [DOI: 10.1007/s40090-019-0185-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Zhang Y, An Q, Tong W, Li H, Ma Z, Zhou Y, Huang T, Zhang Y. A New Way to Promote Molecular Drug Release during Medical Treatment: A Polyelectrolyte Matrix on a Piezoelectric-Dielectric Energy Conversion Substrate. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802136. [PMID: 30117268 DOI: 10.1002/smll.201802136] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/30/2018] [Indexed: 06/08/2023]
Abstract
Enhanced drug releases in a timely manner during urgent medical treatments would significantly enhance the prognosis of patients. Inspired by the facilitated molecular transports by the potentials, an enhanced drug release strategy driven by mechanical disturbances that widely exist in medical treatment processes is proposed. This strategy is enabled by a functional material comprised of multilayers of dendrimers as the drug reservoir, which are built on a piezoelectric-dielectric flexible film with reduced graphene oxide fillers. The generated voltages are higher and last longer than that in regular piezoelectric films. Photochemical crosslinking leads to a stable drug matrix which is even sustained in electric fields and high ionic strengths. The device enhances releases of positively, negatively, and zwitterionically charged molecules in response to mechanical stimuli and supports high cell viabilities. An illustrative application is demonstrated by preparing the material on the surface of a gastric lavage tube. The results show that the release of antiemetic drug increased by 200% within 60 min in response to forces mimicking human swallowing. This study contributes an integrative material that can realize electrically triggered releases that are previously only realized using complicated electrochemical setups. It is believed that this material can facilitate medicine applications in various emergent situations.
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Affiliation(s)
- Yi Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Wangshu Tong
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Haitao Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Zequn Ma
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Yan Zhou
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Tao Huang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
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13
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Rather AM, Shome A, Bhunia BK, Panuganti A, Mandal BB, Manna U. Simultaneous and controlled release of two different bioactive small molecules from nature inspired single material. J Mater Chem B 2018; 6:7692-7702. [DOI: 10.1039/c8tb02406e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Simultaneous and extended (over 6 months) release of two different bioactive small molecules from single polymeric material was successfully achieved through strategic use of metastable trapped air for the first time.
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Affiliation(s)
- Adil M. Rather
- Department of Chemistry
- Indian Institute of Technology-Guwahati
- Kamrup
- India
| | - Arpita Shome
- Department of Chemistry
- Indian Institute of Technology-Guwahati
- Kamrup
- India
| | - Bibhas K. Bhunia
- Department of Chemistry
- Indian Institute of Technology-Guwahati
- Kamrup
- India
| | - Aparna Panuganti
- Department of Chemistry
- Indian Institute of Technology-Guwahati
- Kamrup
- India
| | - Biman B. Mandal
- Department of Chemistry
- Indian Institute of Technology-Guwahati
- Kamrup
- India
| | - Uttam Manna
- Department of Chemistry
- Indian Institute of Technology-Guwahati
- Kamrup
- India
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14
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Liu G, Li L, Huo D, Li Y, Wu Y, Zeng L, Cheng P, Xing M, Zeng W, Zhu C. A VEGF delivery system targeting MI improves angiogenesis and cardiac function based on the tropism of MSCs and layer-by-layer self-assembly. Biomaterials 2017; 127:117-131. [PMID: 28284103 DOI: 10.1016/j.biomaterials.2017.03.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/21/2017] [Accepted: 03/01/2017] [Indexed: 12/29/2022]
Abstract
Myocardial infarction (MI) is a serious ischemic condition affecting many individuals around the world. Vascular endothelial growth factor (VEGF) is considered a promising factor for enhancing cardiac function by promoting angiogenesis. However, the lack of a suitable method of VEGF delivery to the MI area is a serious challenge. In this study, we screened a suitable delivery carrier with favorable biocompatibility that targeted the MI area using the strategy of an inherent structure derived from the body and that was based on characteristics of the MI. Mesenchymal stem cells (MSCs) are important infiltrating cells that are derived from blood and have an inherent tropism for the MI zone. We hypothesized that VEGF-encapsulated MSCs targeting MI tissue could improve cardiac function by angiogenesis based on the tropism of the MSCs to the MI area. We first developed VEGF-encapsulated MSCs using self-assembled gelatin and alginate polyelectrolytes to improve angiogenesis and cardiac function. In vitro, the results showed that VEGF-encapsulated MSCs had a sustained release of VEGF and tropism to SDF-1. In vivo, VEGF-encapsulated MSCs migrated to the MI area, enhanced cardiac function, perfused the infarcted area and promoted angiogenesis. These preclinical findings suggest that VEGF-loaded layer-by-layer self-assembled encapsulated MSCs may be a promising and minimally invasive therapy for treating MI. Furthermore, other drugs loaded to layer-by-layer self-assembled encapsulated MSCs may be promising therapies for treating other diseases.
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Affiliation(s)
- Ge Liu
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Li Li
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Da Huo
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Yanzhao Li
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Yangxiao Wu
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Lingqing Zeng
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Panke Cheng
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Malcolm Xing
- Department of Mechanical Engineering, Biochemistry & Medical Genetics, University of Manitoba, 75A Chancellors Circle, Winnipeg, Manitoba R3T 2N2, Canada; Manitoba Institute of Child Health, 715 McDermot Ave, Winnipeg, Manitoba R3E3P4, Canada
| | - Wen Zeng
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Chuhong Zhu
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China.
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15
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Song B, Wu C, Chang J. Ultrasound-triggered dual-drug release from poly(lactic-co-glycolic acid)/mesoporous silica nanoparticles electrospun composite fibers. Regen Biomater 2015; 2:229-37. [PMID: 26816645 PMCID: PMC4676330 DOI: 10.1093/rb/rbv019] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 08/31/2015] [Accepted: 09/10/2015] [Indexed: 01/23/2023] Open
Abstract
The aim of this study was to achieve on-demand controlled drug release from the dual-drug-loaded poly(lactic-co-glycolic acid)/mesoporous silica nanoparticles electrospun composite fibers by the application of ultrasound irradiation. Two drugs were loaded in different part of the composite fibrous materials, and it was found that ultrasound as an external stimulus was able to control release of drugs due to both its thermal effect and non-thermal effect. With the selective irradiation of ultrasound, the drug carrier enabled to realize controlled release, and because of different location in fibers and sensitivity of two different kinds of drugs to ultrasound irradiation, the release rate of two drugs was different. These results indicated that ultrasound irradiation was a facile method to realize the on-demand controlled release of two drugs from the electrospun fibers.
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Affiliation(s)
| | | | - Jiang Chang
- *Correspondence address. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People’s Republic of China. Tel: +86 21 52412804; Fax: +86 21 52413903; E-mail:
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16
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Zan X, Garapaty A, Champion JA. Engineering Polyelectrolyte Capsules with Independently Controlled Size and Shape. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:7601-7608. [PMID: 26114616 DOI: 10.1021/acs.langmuir.5b01578] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Polyelectrolyte capsules (PECs) are a promising delivery system that has the ability to carry a large payload of a variety of cargoes. Controlling PEC properties is critical to understanding and tuning their cellular uptake efficiency, kinetics, and mechanism as well as their biodistribution in the body. The lack of a method to independently engineer PEC size, shape, and chemistry impedes both basic understanding of how physicochemical parameters affect PEC behavior in drug delivery and other applications, and the ability to optimize parameters for best function. Here, we report the successful fabrication of PECs having constant surface chemistry with independently controlled size and shape by combining soft organic templates created by the particle stretching method and a modified layer-by-layer (LBL) deposition process. Changing the template dispersion solution during LBL deposition from water to ethanol allowed us to overcome previous issues with organic templates, such as aggregation and template removal. These results will contribute not only to the basic study of the role of capsule shape and size on its function but also to the optimization of capsule properties for drug or imaging carriers, sensors, reactors, and other applications.
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Affiliation(s)
- Xingjie Zan
- ‡Institute of Biomaterials and Engineering, Wenzhou Medical University, Chashan University Town, Wenzhou, Zhejiang Province 325035, PR China
- §Wenzhou Institute of Biomaterials and Engineering, 16 Xinsan Rd Hi-tech Industry Park, Wenzhou, Zhejiang Province 325011, PR China
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17
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Jin G, Shin M, Kim SH, Lee H, Jang JH. SpONGE: Spontaneous Organization of Numerous-Layer Generation by Electrospray. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Jin G, Shin M, Kim SH, Lee H, Jang JH. SpONGE: Spontaneous Organization of Numerous-Layer Generation by Electrospray. Angew Chem Int Ed Engl 2015; 54:7587-91. [DOI: 10.1002/anie.201502177] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 04/03/2015] [Indexed: 11/06/2022]
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19
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Li W, Guan T, Zhang X, Wang Z, Wang M, Zhong W, Feng H, Xing M, Kong J. The Effect of Layer-by-Layer Assembly Coating on the Proliferation and Differentiation of Neural Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:3018-3029. [PMID: 25347385 DOI: 10.1021/am504456t] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanocoating of a single-cell with biocompatible materials creates a defined microenvironment for cell differentiation and proliferation, as well as a model for studies in cell biology. In addition, the acidic environment in the tissue of stroke victims necessitates drug release upon pH stimuli. Here, we report the encapsulation of single neural stem cells (NSCs) using a layer-by-layer (LbL) self-assembly technique with polyelectrolytes gelatin and alginate. Analysis of the NSCs showed that the LbL encapsulation would not affect the viability, proliferation, or differentiation of the cells. When insulin-like growth factor-1 (IGF-1) was loaded on the coating material alginate, its release from alginate into the medium presented in a time-dependent and pH-dependent way. IGF-1 significantly enhanced the proliferation of the encapsulated NSCs, demonstrating a drug-carrier function of the LbL single-cell nanocoating. It provided a potential treatment strategy for nervous system disorders such as stroke.
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Affiliation(s)
- Wenyan Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University , 30 Gaotanyan Street, Chongqing 400038, China
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20
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Polenz I, Weitz DA, Baret JC. Polyurea microcapsules in microfluidics: surfactant control of soft membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:1127-34. [PMID: 25531127 DOI: 10.1021/la5040189] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Interfacial polymerization techniques offer a versatile route for microcapsule synthesis. We designed a microfluidic process to synthesize monodisperse polyurea microcapsules (PUMCs); the microcapsules are formed by an interfacial polymerization of isocyanate dissolved in the oil and an amine dissolved in water. We measure the mechanical properties of the capsule as well as transport properties through the membrane using two microfluidic methods. We show that the elasticity and the permeability of the shell are controlled by surfactant additives, added during the synthesis. The control of the nanostructure of the shell by surfactants provides new means to design encapsulation systems with tailored mechanical and physicochemical properties.
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Affiliation(s)
- Ingmar Polenz
- Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
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21
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Wei J, Shi J, Wu Q, Yang L, Cao S. Hollow hydroxyapatite/polyelectrolyte hybrid microparticles with controllable size, wall thickness and drug delivery properties. J Mater Chem B 2015; 3:8162-8169. [DOI: 10.1039/c5tb01268f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hollow hydroxyapatite/polyelectrolyte microparticles with controllable size, wall thickness and drug delivery properties have been fabricated via the green hydrothermal method and the LbL self-assembly technique.
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Affiliation(s)
- Jing Wei
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450052
- China
| | - Jun Shi
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450052
- China
| | - Qiong Wu
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450052
- China
| | - Liu Yang
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450052
- China
| | - Shaokui Cao
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450052
- China
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22
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Chen D, Wu M, Chen J, Zhang C, Pan T, Zhang B, Tian H, Chen X, Sun J. Robust, flexible, and bioadhesive free-standing films for the co-delivery of antibiotics and growth factors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13898-13906. [PMID: 25353985 DOI: 10.1021/la503684k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Free-standing polymer films that adhere strongly to tissue and can codeliver multiple therapeutic agents in a controlled manner are useful as medical plasters. In this study, a bilayer polymer film comprising a drug reservoir layer and a supporting layer is fabricated by spin-coating poly(lactic-co-glycolic acid) (PLGA) on top of a layer-by-layer assembled film of poly(β-amino esters) (PAE), alginate sodium (ALG), and recombinant human basic fibroblast growth factor (bFGF). Apart from bFGF, the bilayer film can also load antibiotic drug ceftriaxone sodium (CTX) by a postdiffusion process. The PLGA supporting layer facilitates the direct peeling of the bilayer film from substrate to produce a robust and flexible free-standing film with excellent adhesion onto the human skin and porcine liver. The excellent adhesion of the bilayer film originates from the ALG component in the drug reservoir layer. CTX is quickly released by easily breaking its electrostatic interaction with the drug reservoir layer, whereas the sustained release of bFGF is due to the slow degradation of PAE component in the drug reservoir layer. Wounds can be synergetically treated by fast release of CTX to effectively eradicate invasive bacteria and by sustained release of bFGF to accelerate wound healing. Our results serve as a basis for designing multifunctional free-standing films with combination therapy for biomedical applications.
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Affiliation(s)
- Dongdong Chen
- State Key Laboratory of Supramolecular Structure and Materials, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University , Changchun, P. R. China 130012
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23
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Teixeira RFA, van den Berg O, Nguyen LTT, Fehér K, Du Prez FE. Microencapsulation of Active Ingredients Using PDMS as Shell Material. Macromolecules 2014. [DOI: 10.1021/ma501897j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | | | - Le-Thu T. Nguyen
- SIM vzw, Technologiepark 935, B-9052 Zwijnaarde, Belgium
- Department
of Polymer Materials, Faculty of Materials Technology, Ho Chi Minh
City University of Technology, Vietnam National University, Ly Thuong Kiet 268, District
10, Ho Chi Minh City, Vietnam
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24
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Layer-by-layer microcapsules for pH-controlled delivery of small molecules. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2014. [DOI: 10.1007/s40005-014-0153-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Chen L, Jiang T, Cai C, Wang L, Lin J, Cao X. Polypeptide-based "smart" micelles for dual-drug delivery: a combination study of experiments and simulations. Adv Healthc Mater 2014; 3:1508-17. [PMID: 24652770 DOI: 10.1002/adhm.201300638] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 02/21/2014] [Indexed: 11/11/2022]
Abstract
A dual-drug-loaded micelle is designed and constructed from a mixture of poly(propylene oxide)-b-poly(γ-benzyl-l-glutamate)-b-poly(ethylene glycol) (PPO-b-PBLG-b-PEG) triblock terpolymers and two model drugs, doxorubicin (DOX) and naproxen (Nap). In the micelles, the DOX is chemically linked to the PBLG backbones through an acid-cleavable hydrazone bond, whereas the Nap is physically encapsulated in the cores. The drug loading and releasing behaviors of the dual-drug-loaded micelles as well as single drug-loaded micelles (DOX-conjugated or Nap-loaded micelles) are studied. The structures of micelles are characterized by means of microscopies and dynamic light scattering, and further examined by dissipative particle dynamics (DPD) simulations. It is revealed that the micelles possess a core-shell-corona structure in which the PPO/Nap, PBLG/DOX, and PEG aggregate to form the core, shell, and corona, respectively. In vitro studies reveal that the release of DOX and Nap is pH- and thermosensitive. Such drug releasing behaviors are also examined by DPD simulations, and more information regarding the mechanism is obtained. In addition, the bio-related properties such as cellular uptake of the micelles and biocompatibility of the deliveries are evaluated. The results show that the dual-drug-loaded micelles are biocompatible at normal physiological conditions and retain the anti-cancer efficiency.
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Affiliation(s)
- Lili Chen
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Tao Jiang
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Xuguang Cao
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
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26
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Du L, Zhang S, Chen G, Yin G, Du C, Tan Q, Sun Y, Qu Y, Gao Y. Polyelectrolyte assisted synthesis and enhanced oxygen reduction activity of Pt nanocrystals with controllable shape and size. ACS APPLIED MATERIALS & INTERFACES 2014; 6:14043-9. [PMID: 25058739 DOI: 10.1021/am503372f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The shape control of platinum nanocrystals is significant to the enhancement of their catalytic performance in terms of activity and selectivity. However, it still remains a major challenge to prepare Pt nanocrystals with tunable shape and clean surface in an eco-friendly way. This article develops a facile and green strategy to prepare well tuned platinum nanocrystals employing poly(diallyldimethylammonium chloride) (PDDA) as the capping agent, reductant, and stabilizer simultaneously in a facile hydrothermal process. It is identified that the variation of PDDA concentration is crucial to control the growth of crystalline facets, leading to the formation of cubic, truncated cubic, and octahedral Pt nanocrystals with sizes tunable from ca. 17 nm to ca. 50 nm. The resultant Pt nanocrystals exhibit excellent electrocatalytic activity and stability toward the oxygen reduction reaction (ORR) in acidic media compared with those of commercial Pt black and the state-of-the-art Pt/C catalyst. It is proposed that the preferential Pt surface and the decoration of PDDA, which modulates the electronic structures and electrooxidation of Pt nanocrystals, synergistically contribute to the enhanced catalytic performance.
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Affiliation(s)
- Lei Du
- Institute of Advanced Chemical Power Sources, School of Chemical Engineering and Technology, Harbin Institute of Technology , 92 West Dazhi Street, Harbin 150001, China
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27
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Borges J, Mano JF. Molecular Interactions Driving the Layer-by-Layer Assembly of Multilayers. Chem Rev 2014; 114:8883-942. [DOI: 10.1021/cr400531v] [Citation(s) in RCA: 609] [Impact Index Per Article: 60.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- João Borges
- 3B’s
Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra,
S. Cláudio do Barco 4806-909 Caldas das Taipas, Guimarães, Portugal
- ICVS/3B’s
− PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João F. Mano
- 3B’s
Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra,
S. Cláudio do Barco 4806-909 Caldas das Taipas, Guimarães, Portugal
- ICVS/3B’s
− PT Government Associate Laboratory, Braga/Guimarães, Portugal
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28
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Mandapalli PK, Labala S, Vanamala D, Koranglekar MP, Sakimalla LA, Venuganti VVK. Influence of charge on encapsulation and release behavior of small molecules in self-assembled layer-by-layer microcapsules. Drug Deliv 2013; 21:605-14. [PMID: 24328418 DOI: 10.3109/10717544.2013.867381] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objective of this study is to investigate the influence of charge of model small molecules on their encapsulation and release behavior in layer-by-layer microcapsules (LbL-MC). Poly(styrene sulfonate) and poly(ethylene imine) were sequentially adsorbed on calcium carbonate sacrificial templates to prepare LbL-MC. Model molecules with varying charge, anionic - ascorbic acid, cationic - imatinib mesylate (IM) and neutral - 5-fluorouracil were encapsulated in LbL-MC. Free and encapsulated LbL-MC were characterized using zetasizer, FTIR spectroscope and differential scanning calorimeter. The influence of IM-loaded LbL-MC on cell viability was studied in B16F10 murine melanoma cells. Furthermore, biodistribution of IM-loaded LbL-MC with and without PEGylation was studied in BALB/c mice. Results showed spherical LbL-MC of 3.0 ± 0.4 μm diameter. Encapsulation efficiency of LbL-MC increased linearly (R(2 )= 0.89-0.99) with the increase in solute concentration. Increase in pH from 2 to 6 increased the encapsulation of charged molecules in LbL-MC. Charged molecules showed greater encapsulation efficiency in LbL-MC compared with neutral molecule. In vitro release kinetics showed Fickian and non-Fickian diffusion of small molecules, depending on the nature of molecular interactions with LbL-MC. At 50 μM concentration, free IM showed significantly (p < 0.05) more cytotoxicity compared with IM-loaded LbL-MC. Biodistribution studies showed that PEGylation of LbL-MC decreased the liver and spleen uptake of IM-encapsulated LbL-MC. In conclusion, LbL-MC can be developed as a potential carrier for small molecules depending on their physical and chemical properties.
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Affiliation(s)
- Praveen K Mandapalli
- Department of Pharmacy, BITS Pilani, Hyderabad Campus , Shameerpet, Hyderabad 500078, Andhra Pradesh , India
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Saleem Q, Zhang Z, Gradinaru CC, Macdonald PM. Liposome-coated hydrogel spheres: delivery vehicles with tandem release from distinct compartments. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:14603-14612. [PMID: 24156402 DOI: 10.1021/la402796k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We have fabricated unilamellar lipid bilayer VESicle-COated hydrogel spheres (VESCOgels) by carbodiimide-mediated coupling of liposomes bearing surface amines to core-shell hydrogel spheres bearing surface carboxyls. The amine-containing moiety, 3-O (2-aminoethoxyethyloxyethyl)carbamyl cholesterol (AECHO), was incorporated into large unilamellar vesicles (LUVs), diameter ∼100 nm, composed of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC). The hydrogel, diameter ∼ 1 μm, consisted of a core of poly(N-isopropyl acrylamide) (pNIPAM) and a shell of p(NIPAM-co-acrylic acid (AA)). Activation of these surface-displayed carboxyls with N-hydroxysuccinimidyl (NHS) esters permitted amine coupling upon addition of AECHO-containing POPC LUVs. Bilayer integrity of the hydrogel-bound LUVs was maintained, and fusion of LUVs did not occur. Fluorescence assays of the release of cobalt-calcein trapped within hydrogel-bound LUVs and of sodium fluorescein trapped within the hydrogel itself showed that each compartment retained its distinct release attributes: fast release from the microgel and slow release from the LUVs. It is envisioned that VESCOgels will be useful, therefore, in applications requiring temporally controlled delivery of distinct drugs.
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Affiliation(s)
- Qasim Saleem
- Department of Chemistry and ‡Department of Physics, University of Toronto , Toronto, Ontario, Canada
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Abbaspourrad A, Carroll NJ, Kim SH, Weitz DA. Polymer Microcapsules with Programmable Active Release. J Am Chem Soc 2013; 135:7744-50. [DOI: 10.1021/ja401960f] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Alireza Abbaspourrad
- School of Engineering and Applied
Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Nick J. Carroll
- School of Engineering and Applied
Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Shin-Hyun Kim
- School of Engineering and Applied
Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, United States
- Department of Chemical and Biomolecular
Engineering, KAIST, Daejeon, South Korea
| | - David A. Weitz
- School of Engineering and Applied
Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, United States
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Pavlukhina S, Sukhishvili S. Smart Layer-by-Layer Assemblies for Drug Delivery. SMART MATERIALS FOR DRUG DELIVERY 2013. [DOI: 10.1039/9781849734318-00117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Layer-by-layer (LbL) assembly is an effective tool for development of surface coatings and capsules for localized, controlled delivery of bioactive molecules. Because of the unprecedented versatility of the technique, a broad range of nanoobjects, including molecules, particles, micelles, vesicles and others with diverse chemistry and architecture can be used as building blocks for LbL assemblies, opening various routes for inclusion and delivery of functional molecules to/from LbL films. Moreover, the LbL technique continues to show its power in constructing three-dimensional (3D) delivery containers, in which LbL walls can additionally control delivery of functional molecules incorporated in the capsule interior. In this chapter, we discuss recent progress in the use of LbL assemblies to control release of therapeutic compounds via diffusion, hydrolytic degradation, pH, ionic strength or temperature variations, application of light, ultrasound, electric and magnetic field stimuli, redox activation or biological stimuli.
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Affiliation(s)
- Svetlana Pavlukhina
- Department of Chemistry Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030 USA
| | - Svetlana Sukhishvili
- Department of Chemistry Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030 USA
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Ozdal D, Asir S, Bodapati JB, Icil H. Synthesis of a novel fluorescent amphiphilic chitosan biopolymer: photophysical and electrochemical behavior. Photochem Photobiol Sci 2013; 12:1927-38. [DOI: 10.1039/c3pp50122a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhong D, Liu Z, Xie S, Zhang W, Zhang Y, Xue W. Study on poly(D,L-lactic) microspheres embedded in calcium alginate hydrogel beads as dual drug delivery systems. J Appl Polym Sci 2012. [DOI: 10.1002/app.38797] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Kurapati R, Raichur AM. Graphene oxide based multilayer capsules with unique permeability properties: facile encapsulation of multiple drugs. Chem Commun (Camb) 2012; 48:6013-5. [PMID: 22576808 DOI: 10.1039/c2cc32248j] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel composite graphene oxide (GO)/poly(allylamine hydrochloride) (PAH) multilayer capsules have been fabricated by layer-by-layer (LbL) assembly. They were found to possess unique permeability properties compared to traditional LbL capsules. These hybrid capsules showed special "core-shell" loading property for encapsulation of dual drugs simultaneously into the core and shell of the capsules respectively.
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Affiliation(s)
- Rajendra Kurapati
- Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, India.
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Wohl BM, Engbersen JF. Responsive layer-by-layer materials for drug delivery. J Control Release 2012; 158:2-14. [DOI: 10.1016/j.jconrel.2011.08.035] [Citation(s) in RCA: 171] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Accepted: 08/23/2011] [Indexed: 11/30/2022]
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Tian R, Fu X, Zheng Y, Liang X, Wang Q, Ling Y, Hou B. The preparation and characterization of double-layer microcapsules used for the self-healing of resin matrix composites. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34195f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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DUAL DRUG DELIVERY SYSTEM FROM MULTI-STEP SELF-ASSEMBLED POLYELECTROLYTE NANOPARTICLES. ACTA POLYM SIN 2011. [DOI: 10.3724/sp.j.1105.2011.11025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Polymer assemblies for controlled delivery of bioactive molecules from surfaces. Adv Drug Deliv Rev 2011; 63:822-36. [PMID: 21684313 DOI: 10.1016/j.addr.2011.03.017] [Citation(s) in RCA: 176] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Revised: 02/23/2011] [Accepted: 03/30/2011] [Indexed: 12/17/2022]
Abstract
Localized delivery of bioactive compounds from surfaces of biomedical devices affords significant therapeutic benefits, and often relies on the capability of surface coatings to provide spatial and temporal control over release rate. The layer-by-layer technique presents a unique means to construct surface coatings that can conform to a variety of biomaterial surfaces and serve as matrices enabling controlled delivery of bioactive molecules from surfaces. The versatility of layer-by-layer assembly enables construction of surface coatings of diverse chemistry and internal architecture with controlled release properties. This review focuses on recent developments in constructing such layered matrices using linear polymers, polymer nanoparticles and block copolymer micelles, including micelles with stimuli-responsive cores, as film building blocks and in controlling release rate of therapeutics from these matrices via degradation, application of pH, ionic strength, temperature, light, electric field and chemical or biological stimuli. Challenges and opportunities associated with fabrication of stratified multilayer films capable of multi-stage delivery of multiple drugs are also discussed.
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Zhao J, Cui Y, Wang A, Fei J, Yang Y, Li J. Side effect reduction of encapsulated hydrocortisone crystals by insulin/alginate shells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:1499-1504. [PMID: 21067203 DOI: 10.1021/la103696z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Insulin/alginate (ALG) microcapsules for controllable release and side effect reduction of a glucocorticoid have been fabricated via the layer-by-layer (LbL) assembly technique. Insulin and ALG are deposited alternately onto hydrocortisone (HC) crystals to form a core-shell structure. This insulin/ALG microcapsule can prolong the release of HC under physical conditions and control the HC release rate by adjusting the number of insulin/ALG bilayers adsorbed onto HC crystals. The release of insulin from the capsule wall exhibits a little lag, compared with that of the HC. It is a great advantage for this system because hyperglycemia caused by HC usually arises a few hours after its administration, which could be inhibited by the delayed release of insulin from the shell of the microcapsule. This synergy effect might enable a new way of using one carrier to deliver two kinds of drugs and reduce their side effects at the same time.
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Affiliation(s)
- Jie Zhao
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Colloid and Interface Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, PR China
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Zhang H, Wang G, Yang H. Drug delivery systems for differential release in combination therapy. Expert Opin Drug Deliv 2011; 8:171-90. [PMID: 21226651 DOI: 10.1517/17425247.2011.547470] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Combination therapy with multiple therapeutic agents has wide applicability in medical and surgical treatment, especially in the treatment of cancer. Thus, new drug delivery systems that can differentially release two or more drugs are desired. Utilizing new techniques to engineer the established drug delivery systems and synthesizing new materials and designing carriers with new structures are feasible ways to fabricate proper multi-agent delivery systems, which are critical to meet requirements in the clinic and improve therapeutic efficacy. AREAS COVERED This paper aims to give an overview about the multi-agent delivery systems developed in the last decade for differential release in combination therapy. Multi-agent delivery systems from nanoscale to bulk scale, such as liposomes, micelles, polymer conjugates, nano/microparticles and hydrogels, developed over the last 10 years, have been collected and summarized. The characteristics of different delivery systems are described and discussed, including the structure of drug carriers, drug-loading techniques, release behaviors and consequent evaluation in biological assays. EXPERT OPINION The chemical structure of drug delivery systems is the key to controlling the release of therapeutic agents in combination therapy, and the differential release of multiple drugs could be realized by the successful design of a proper delivery system. Besides biological evaluation in vitro and in vivo, it is important to speed up practical application of the resulting delivery systems.
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Affiliation(s)
- Hongbin Zhang
- University of Science and Technology Beijing, School of Materials Science and Engineering, Beijing, PR China
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Manna U, Patil S. Hollow hemisphere and microcapsules of nonionic copolymer. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm01106a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kittitheeranun P, Sanchavanakit N, Sajomsang W, Dubas ST. Loading of curcumin in polyelectrolyte multilayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:6869-6873. [PMID: 20405963 DOI: 10.1021/la1003676] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Polyelectrolyte multilayer (PEM) thin films prepared using the layer-by-layer technique are proposed as a matrix for the immobilization of 1,7-bis-(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-2,5-dione (curcumin), a lipophilic model drug. The PEM assembly was based on the layer-by-layer deposition of cationic poly(diallyldimethyl-ammonium chloride) (PDADMAC) and anionic poly(4-styrene sulfonate, sodium salt) (PSS) onto a quartz slide. Curcumin was loaded by dipping the PEM film into a dilute solution of curcumin dispersed in an 80/20% v/v water/ethanol solution. Within a few minutes, the film turned bright yellow as a result of the curcumin loading. The effect of the solvent composition, curcumin concentration and film thickness on the final concentration of curcumin in the PEM films was measured by UV-vis spectroscopy. The loading of curcumin was driven by its partitioning in the PEM film, and its partitioning coefficient between the 80/20 solvent and the PEM thin film was found to have a value of 2.07 x 10(5). The extinction coefficient of curcumin loaded into PEM was calculated to 64,000 M(-1) cm(-1). Results show that the loading of curcumin into the PEM films increased with the number of deposited layers, implying that curcumin partitioned into the bulk of the thin film. The maximum curcumin dose in the PEM film was measured by exposing films of various thicknesses to a high concentration (0.01% w/v) of curcumin and recording the maximum absorbance after saturation. The films thicknesses were controlled by the number of deposited PDADMAC/PSS layers (10, 20, 30, 40, 50, and 60). Results show that increasing amounts of curcumin could be loaded into the film with an increasing number of layers and up to 8 microg/cm(2) of curcumin could be loaded into a 20-layer film. These results demonstrate that the loading of lipophilic curcumin in PEM thin films is done through a partitioning mechanism and that the PDADMAC/PSS film can be used as a loading matrix for lipophilic drugs.
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Affiliation(s)
- Paveenuch Kittitheeranun
- Nanoscience and Technology Program Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
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Manna U, Patil S. Glucose-triggered drug delivery from borate mediated layer-by-layer self-assembly. ACS APPLIED MATERIALS & INTERFACES 2010; 2:1521-1527. [PMID: 20423053 DOI: 10.1021/am100139j] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this study, we report a novel approach for glucose-triggered anticancer drug delivery from the self-assembly of neutral poly(vinyl alcohol) (PVA) and chitosan. In the present study, we have fabricated multilayer thin film of PVA-borate and chitosan on colloidal particle (MF particle) and monitored the layer-by-layer growth using Zeta potential measurements. Formation of multilayer membrane on MF particle has been further characterized with transmission electron microscopy (TEM) and confocal laser scanning microscopy (CLSM). Subsequently, disintegration of multilayer thin film and microcapsules was observed in presence of glucose. We investigated the disassembly of PVA-borate and chitosan self-assembly under CLSM and atomic force microscopy. These results suggest that this multilayer thin film is very efficient for encapsulation and release of DOX molecules above certain concentration of glucose (25 mM). This glucose-sensitive self-assembly is relevant for the application of anticancer therapeutic drug delivery.
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Affiliation(s)
- Uttam Manna
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560012
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Manna U, Dhar J, Nayak R, Patil S. Multilayer single-component thin films and microcapsules via covalent bonded layer-by-layer self-assembly. Chem Commun (Camb) 2010; 46:2250-2. [DOI: 10.1039/b924240f] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Higashi K, Ideura S, Waraya H, Limwikrant W, Moribe K, Yamamoto K. Simultaneous Dissolution of Naproxen and Flurbiprofen from a Novel Ternary .GAMMA.-Cyclodextrin Complex. Chem Pharm Bull (Tokyo) 2010; 58:769-72. [DOI: 10.1248/cpb.58.769] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Saori Ideura
- Graduate School of Pharmaceutical Sciences, Chiba University
| | - Haruka Waraya
- Graduate School of Pharmaceutical Sciences, Chiba University
| | | | - Kunikazu Moribe
- Graduate School of Pharmaceutical Sciences, Chiba University
| | - Keiji Yamamoto
- Graduate School of Pharmaceutical Sciences, Chiba University
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