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Tao J, Wu K, Chen Y, Li W, Gu Y, Liu R, Luo J. A facile one-pot strategy for the preparation of porous polymeric microspheres via UV irradiation-induced polymerization in emulsions. SOFT MATTER 2023; 19:1407-1417. [PMID: 36723259 DOI: 10.1039/d2sm01459a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In this study, a facile one-pot strategy was developed to prepare porous polymeric microspheres via photopolymerization, where organic solvents functioned as porogens. In this strategy, an oil phase containing organic solvents and photopolymerizable materials was stabilized in water to form a stable oil-in-water emulsion. Upon UV irradiation, the photopolymerizable materials (photosensitive monomers/photosensitive prepolymers) underwent polymerization to form microspheres and the subsequent removal of organic solvents left pores in microspheres, leading to the generation of porous polymeric microspheres with high yielding. The effects of organic solvents and the chemical structure and concentration of photopolymerizable materials on the microsphere structure were systematically explored. It was found that the polarity of the organic solvents played a decisive role in the preparation of porous microspheres. In addition, the increases in the solvent content and functionalities of photopolymerizable materials were more favorable for the generation of porous microspheres. This strategy could be applicable for a wide selection of photopolymerizable materials, which endowed this strategy with good applicability. The preparation of porous microspheres by this method was facile and easy to handle, enabling the scalable preparation of porous microspheres. In addition, the whole process can be completed within a few minutes at ambient temperature, which was time-saving and energy-saving.
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Affiliation(s)
- Junjie Tao
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Lihu Street 1800, Wuxi, 214122, China.
| | - Kaiyun Wu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Lihu Street 1800, Wuxi, 214122, China.
| | - Yaxin Chen
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Lihu Street 1800, Wuxi, 214122, China.
| | - Wei Li
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Lihu Street 1800, Wuxi, 214122, China.
| | - Yao Gu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Lihu Street 1800, Wuxi, 214122, China.
| | - Ren Liu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Lihu Street 1800, Wuxi, 214122, China.
| | - Jing Luo
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Lihu Street 1800, Wuxi, 214122, China.
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Abstract
Polyanhydrides (PAs) are a class of synthetic biodegradable polymers employed as controlled drug delivery vehicles. They can be synthesized and scaled up from low-cost starting materials. The structure of PAs can be manipulated synthetically to meet desirable characteristics. PAs are biocompatible, biodegradable, and generate nontoxic metabolites upon degradation, which are easily eliminated from the body. The rate of water penetrating into the polyanhydride (PA) matrix is slower than the anhydride bond cleavage. This phenomenon sets PAs as "surface-eroding drug delivery carriers." Consequently, a variety of PA-based drug delivery carriers in the form of solid implants, pasty injectable formulations, microspheres, nanoparticles, etc. have been developed for the sustained release of small molecule drugs, and vaccines, peptide drugs, and nucleic acid-based active agents. The rate of drug delivery is often controlled by the polymer erosion rate, which is influenced by the polymer structure and composition, crystallinity, hydrophobicity, pH of the release medium, device size, configuration, etc. Owing to the above-mentioned interesting physicochemical and mechanical properties of PAs, the present review focuses on the advancements made in the domain of synthetic biodegradable biomedical PAs for therapeutic delivery applications. Various classes of PAs, their structures, their unique characteristics, their physicochemical and mechanical properties, and factors influencing surface erosion are discussed in detail. The review also summarizes various methods involved in the synthesis of PAs and their utility in the biomedical domain as drug, vaccine, and peptide delivery carriers in different formulations are reviewed.
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Affiliation(s)
- Pulikanti Guruprasad Reddy
- School of Pharmacy-Faculty of Medicine, The Hebrew University of Jerusalem, and Centre for Cannabis Research and the Institute of Drug Research, The Alex Grass Centre for Drug Design and Synthesis, Jerusalem 9112002, Israel
| | - Abraham J Domb
- School of Pharmacy-Faculty of Medicine, The Hebrew University of Jerusalem, and Centre for Cannabis Research and the Institute of Drug Research, The Alex Grass Centre for Drug Design and Synthesis, Jerusalem 9112002, Israel
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Sarcinelli MA, Martins da Silva T, Artico Silva AD, Ferreira de Carvalho Patricio B, Mendes de Paiva FC, Santos de Lima R, Leal da Silva M, Antunes Rocha HV. The pulmonary route as a way to drug repositioning in COVID-19 therapy. J Drug Deliv Sci Technol 2021; 63:102430. [PMID: 33649708 PMCID: PMC7903910 DOI: 10.1016/j.jddst.2021.102430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 02/04/2021] [Accepted: 02/12/2021] [Indexed: 12/12/2022]
Abstract
Introduction The outbreak of the disease caused by the new coronavirus (COVID-19) has been affecting society's routine and its patterns of interaction worldwide, in addition to the impact on the global economy. To date, there is still no clinically effective treatment for this comorbidity, and drug repositioning might be a good strategy considering the established clinical safety profile. In this context, since COVID-19 affects the respiratory tract, a promising approach would be the pulmonary drug delivery. Objective Identify repurposing drug candidates for the treatment of COVID-19 based on the data of ongoing clinical trials and in silico studies and also assess their potential to be applied in formulations for pulmonary administration. Method A integrative literature review was conducted between June and July 2020, by extracting the results from Clinical Trials, PubMed, Web of Science and Science Direct databases. Results By crossing the results obtained from diverse sources, 21 common drugs were found, from which only 4 drugs presented studies of pulmonary release formulations, demonstrating the need for greater investment and incentive in this field. Conclusion Even though the lung is a target that facilitates viral infection and replication, formulations for pulmonary delivery of suitable drugs are still lacking for COVID-19 treatment. However, it is indisputable that the pandemic constitutes a concrete demand, with a profound impact on public health, and that, with the appropriate investments, it will give the pharmaceutical industry an opportunity to reinforce the pulmonary delivery field.
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Affiliation(s)
- Michelle Alvares Sarcinelli
- Laboratório de Micro e Nanotecnologia, Instituto de Tecnologia Em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, 21040-361, Brazil.,Rede Rio de Inovação em Nanossistemas para a Saúde - NanoSAÚDE/ FAPERJ, Rio de Janeiro, RJ, Brazil
| | - Thalita Martins da Silva
- Laboratório de Micro e Nanotecnologia, Instituto de Tecnologia Em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, 21040-361, Brazil.,Rede Rio de Inovação em Nanossistemas para a Saúde - NanoSAÚDE/ FAPERJ, Rio de Janeiro, RJ, Brazil.,Programa de Pós-graduação em Pesquisa Translacional em Fármacos e Medicamentos, Instituto de Tecnologia em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, 21040-361, Brazil
| | - Andressa Daniele Artico Silva
- Laboratório de Micro e Nanotecnologia, Instituto de Tecnologia Em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, 21040-361, Brazil.,Rede Rio de Inovação em Nanossistemas para a Saúde - NanoSAÚDE/ FAPERJ, Rio de Janeiro, RJ, Brazil
| | - Beatriz Ferreira de Carvalho Patricio
- Laboratório de Micro e Nanotecnologia, Instituto de Tecnologia Em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, 21040-361, Brazil.,Rede Rio de Inovação em Nanossistemas para a Saúde - NanoSAÚDE/ FAPERJ, Rio de Janeiro, RJ, Brazil
| | - Flávia Costa Mendes de Paiva
- Laboratório de Micro e Nanotecnologia, Instituto de Tecnologia Em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, 21040-361, Brazil.,Rede Rio de Inovação em Nanossistemas para a Saúde - NanoSAÚDE/ FAPERJ, Rio de Janeiro, RJ, Brazil.,Programa de Pós-graduação em Pesquisa Translacional em Fármacos e Medicamentos, Instituto de Tecnologia em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, 21040-361, Brazil
| | - Raissa Santos de Lima
- Programa de Pós-Graduação em Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, 21041-361, Brazil
| | - Manuela Leal da Silva
- Programa de Pós-Graduação em Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, 21041-361, Brazil.,Instituto de Biodiversidade e Sustentabilidade (NUPEM), Universidade Federal Do Rio de Janeiro, Macaé, RJ, 27965-045, Brazil
| | - Helvécio Vinícius Antunes Rocha
- Laboratório de Micro e Nanotecnologia, Instituto de Tecnologia Em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, 21040-361, Brazil.,Rede Rio de Inovação em Nanossistemas para a Saúde - NanoSAÚDE/ FAPERJ, Rio de Janeiro, RJ, Brazil.,Programa de Pós-graduação em Pesquisa Translacional em Fármacos e Medicamentos, Instituto de Tecnologia em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, RJ, 21040-361, Brazil
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Haim-Zada M, Basu A, Hagigit T, Schlinger R, Grishko M, Kraminsky A, Hanuka E, Domb AJ. Alternating Poly(ester-anhydride) by Insertion Polycondensation. Biomacromolecules 2016; 17:2253-9. [PMID: 27198864 DOI: 10.1021/acs.biomac.6b00523] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report on a synthetic method where polyanhydride is used as starting material and the ester monomers are inserted through complete esterification, leading to an alternating ester-anhydride copolymer. The molar ratio of ricinoleic acid (RA) and sebacic acid (SA) was optimized until polysebacic acid is completely converted to carboxylic acid-terminated RA-SA and RA-SA-RA ester-dicarboxylic acids. These dimers and trimers were activated with acetic anhydride, polymerized under heat and vacuum to yield alternating RA-SA copolymer. The resulting alternating poly(ester-anhydride) have the RA at regular intervals. The regular occurrences of RA side chains prevent anhydride interchange, enhancing hydrolytic stability, which allows storage of the polymer at room temperature.
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Affiliation(s)
- Moran Haim-Zada
- School of Pharmacy, Institute of Drug Research, Hebrew University of Jerusalem , Jerusalem 9112001, Israel
| | - Arijit Basu
- School of Pharmacy, Institute of Drug Research, Hebrew University of Jerusalem , Jerusalem 9112001, Israel
| | - Tal Hagigit
- Dexcel Pharma Technologies, Ltd , Or-Akiva 30600000, Israel
| | - Ron Schlinger
- Dexcel Pharma Technologies, Ltd , Or-Akiva 30600000, Israel
| | - Michael Grishko
- TAMI- Institute for Research & Development, Ltd , Haifa Bay 26111, Israel
| | | | - Ezra Hanuka
- TAMI- Institute for Research & Development, Ltd , Haifa Bay 26111, Israel
| | - Abraham J Domb
- School of Pharmacy, Institute of Drug Research, Hebrew University of Jerusalem , Jerusalem 9112001, Israel
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Sun M, Yin W, Dong X, Yang W, Zhao Y, Yin M. Fluorescent supramolecular micelles for imaging-guided cancer therapy. NANOSCALE 2016; 8:5302-5312. [PMID: 26881415 DOI: 10.1039/c6nr00450d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A novel smart fluorescent drug delivery system composed of a perylene diimide (PDI) core and block copolymer poly(d,l-lactide)-b-poly(ethyl ethylene phosphate) is developed and named as PDI-star-(PLA-b-PEEP)8. The biodegradable PDI-star-(PLA-b-PEEP)8 is a unimolecular micelle and can self-assemble into supramolecular micelles, called as fluorescent supramolecular micelles (FSMs), in aqueous media. An insoluble drug camptothecin (CPT) can be effectively loaded into the FSMs and exhibits pH-responsive release. Moreover, the FSMs with good biocompatibility can also be employed as a remarkable fluorescent probe for cell labelling because the maximum emission of PDI is beneficial for bio-imaging. The flow cytometry and confocal laser scanning microscopy analysis demonstrate that the micelles are easily endocytosed by cancer cells. In vitro and in vivo tumor growth-inhibitory studies reveal a better therapeutic effect of FSMs after CPT encapsulation when compared with the free CPT drug. The multifunctional FSM nanomedicine platform as a nanovehicle has great potential for fluorescence imaging-guided cancer therapy.
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Affiliation(s)
- Mengmeng Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, 100029, Beijing, China.
| | - Wenyan Yin
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China.
| | - Xinghua Dong
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China.
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, 100029, Beijing, China.
| | - Yuliang Zhao
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China.
| | - Meizhen Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, 100029, Beijing, China.
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