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Jaffur BN, Kumar G, Jeetah P, Ramakrishna S, Bhatia SK. Current advances and emerging trends in sustainable polyhydroxyalkanoate modification from organic waste streams for material applications. Int J Biol Macromol 2023; 253:126781. [PMID: 37696371 DOI: 10.1016/j.ijbiomac.2023.126781] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/29/2023] [Accepted: 09/05/2023] [Indexed: 09/13/2023]
Abstract
The current processes for producing polyhydroxyalkanoates (PHAs) are costly, owing to the high cost of cultivation feedstocks, and the need to sterilise the growth medium, which is energy-intensive. PHA has been identified as a promising biomaterial with a wide range of potential applications and its functionalization from waste streams has made significant advances recently, which can help foster the growth of a circular economy and waste reduction. Recent developments and novel approaches in the functionalization of PHAs derived from various waste streams offer opportunities for addressing these issues. This study focuses on the development of sustainable, efficient, and cutting-edge methods, such as advanced bioprocess engineering, novel catalysts, and advances in materials science. Chemical techniques, such as epoxidation, oxidation, and esterification, have been employed for PHA functionalization, while enzymatic and microbial methods have indicated promise. PHB/polylactic acid blends with cellulose fibers showed improved tensile strength by 24.45-32.08 % and decreased water vapor and oxygen transmission rates while PHB/Polycaprolactone blends with a 1:1 ratio demonstrated an elongation at break four to six times higher than pure PHB, without altering tensile strength or elastic modulus. Moreover, PHB films blended with both polyethylene glycol and esterified sodium alginate showed improvements in crystallinity and decreased hydrophobicity.
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Affiliation(s)
- Bibi Nausheen Jaffur
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Mauritius, Réduit 80837, Mauritius.
| | - Gopalakrishnan Kumar
- Institute of Chemistry, Bioscience and Environmental, Engineering, Faculty of Science and Technology, University of Stavanger, Stavanger, Norway; School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, South Korea
| | - Pratima Jeetah
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Mauritius, Réduit 80837, Mauritius
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, 9 Engineering Drive 1, 117575, Singapore
| | - Shashi Kant Bhatia
- Department of Biological Engineering, Konkuk University, Seoul 05029, South Korea
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2
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Song L, Wang M, Yu D, Li Y, Yu H, Han X. Enhancing Production of Medium-Chain-Length Polyhydroxyalkanoates from Pseudomonas sp. SG4502 by tac Enhancer Insertion. Polymers (Basel) 2023; 15:polym15102290. [PMID: 37242866 DOI: 10.3390/polym15102290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Pseudomonas sp. SG4502 screened from biodiesel fuel by-products can synthesize medium-chain-length polyhydroxyalkanoates (mcl-PHAs) using glycerol as a substrate. It contains a typical PHA class II synthase gene cluster. This study revealed two genetic engineering methods for improving the mcl-PHA accumulation capacity of Pseudomonas sp. SG4502. One way was to knock out the PHA-depolymerase phaZ gene, the other way was to insert a tac enhancer into the upstream of the phaC1/phaC2 genes. Yields of mcl-PHAs produced from 1% sodium octanoate by +(tac-phaC2) and ∆phaZ strains were enhanced by 53.8% and 23.1%, respectively, compared with those produced by the wild-type strain. The increase in mcl-PHA yield from +(tac-phaC2) and ∆phaZ was due to the transcriptional level of the phaC2 and phaZ genes, as determined by RT-qPCR (the carbon source was sodium octanoate). 1H-NMR results showed that the synthesized products contained 3-hydroxyoctanoic acid (3HO), 3-hydroxydecanoic acid (3HD) and 3-hydroxydodecanoic acid (3HDD) units, which is consistent with those synthesized by the wild-type strain. The size-exclusion chromatography by GPC of mcl-PHAs from the (∆phaZ), +(tac-phaC1) and +(tac-phaC2) strains were 2.67, 2.52 and 2.60, respectively, all of which were lower than that of the wild-type strain (4.56). DSC analysis showed that the melting temperature of mcl-PHAs produced by recombinant strains ranged from 60 °C to 65 °C, which was lower than that of the wild-type strain. Finally, TG analysis showed that the decomposition temperature of mcl-PHAs synthesized by the (∆phaZ), +(tac-phaC1) and +(tac-phaC2) strains was 8.4 °C, 14.7 °C and 10.1 °C higher than that of the wild-type strain, respectively.
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Affiliation(s)
- Linxin Song
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun 130118, China
- Jilin Province Key Laboratory of Fungal Phenomics, Jilin Agricultural University, Changchun 130118, China
| | - Ming Wang
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun 130022, China
| | - Dengbin Yu
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun 130118, China
- Jilin Province Key Laboratory of Fungal Phenomics, Jilin Agricultural University, Changchun 130118, China
| | - Yu Li
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun 130118, China
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Hongwen Yu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Xuerong Han
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun 130118, China
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun 130022, China
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Hanna DH, Hamed AA, Saad GR. Synthesis and characterization of poly(3-hydroxybutyrate)/chitosan-graft poly (acrylic acid) conjugate hyaluronate for targeted delivery of methotrexate drug to colon cancer cells. Int J Biol Macromol 2023; 240:124396. [PMID: 37037346 DOI: 10.1016/j.ijbiomac.2023.124396] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/26/2023] [Accepted: 04/05/2023] [Indexed: 04/12/2023]
Abstract
Anti-cancer medications that are delivered specifically to the tumor site possess greater efficacy with less negative effects on the body. So, the current research relies on a novel method for intercalating the anticancer medication methotrexate in poly(3-hydroxybutyrate)/chitosan-graft poly (acrylic acid) conjugated with sodium hyaluronate. The graft copolymers were synthesized through persulfate-initiated grafting of acrylic acid onto a binary mixture of various amounts of chitosan and poly(3-hydroxybutyrate) (2/1, 1/1 and 1/2, w/w) using microwave irradiation. The graft copolymer was conjugated with sodium hyaluronate for targeted delivery of methotrexate drug specifically to colon cancer cell lines (Caco-2). The graft copolymers were characterized by many physical techniques. The maximum drug loading efficiency was observed in case of the graft copolymer/hyaluronate rich in chitosan content 69.7 ± 2.7 % (4.65 mg/g) with a sustained release about 98.6 ± 1.12 %, at pH 7.4. The findings of severe cytotoxicity having a value of the IC50 of 11.7 μg/ml, a substantial proportion of apoptotic cells (67.88 %), and an elevated level of DNA breakage inside the treated Caco-2 cells verified the effective release of methotrexate from the loaded copolymer matrix. Besides, the high stability and biological activity of the released drug was exhibited through occurrence of greater increment of reactive oxygen species and effect on the extent of expression of genes connected to apoptosis and anti-oxidant enzymes within the treated cells. Ultimately, this system can be recommended as potent carrier for methotrexate administration to targeted cancerous cells in the colon.
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Affiliation(s)
- Demiana H Hanna
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.
| | - Amira A Hamed
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Gamal R Saad
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
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Kim M, Kang J, Yun SI. Alginate-reinforced poly(3-hydroxybutyrate)/ poly(hydroxybutyrate-co-hydroxyvalerate) aerogel monoliths fabricated by phase separation as environmental floating adsorbents. Int J Biol Macromol 2022; 217:956-968. [PMID: 35908678 DOI: 10.1016/j.ijbiomac.2022.07.188] [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: 04/29/2022] [Revised: 07/16/2022] [Accepted: 07/23/2022] [Indexed: 11/05/2022]
Abstract
Poly(3-hydroxybutyrate) (PHB)/poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) aerogel monoliths were prepared via nonsolvent induced phase separation and then sequentially immersed in ethanol and sodium alginate (ALG) solutions. The resulting composite aerogels contained up to a 52 wt% fraction ALG, causing a remarkable increase in their compressive modulus and collapse strength from 0.3 MPa and 33 kPa to 4 MPa and 406 kPa, respectively, i.e., by 13/12 times. An increase in the ALG contents in the composite aerogels allowed them to effectively adsorb both water and soybean oil, according to pseudo-second-order adsorption kinetics. The highly porous composite aerogel acted as an efficient floating adsorbent for a cationic dye (i.e., methylene blue (MB)) in water. MB adsorption was found to be strongly dependent on ALG contents in the adsorbent, as well as operating parameters such as the initial concentration, pH, and temperature of MB solutions. MB adsorption is best described by the Langmuir isotherm and follows pseudo-second-order kinetics. Ca2+-crosslinking of ALG further increased compressive strength but significantly decreased MB adsorption capability following pseudo-first-order kinetics, implying a slow internal diffusion step for MB adsorption due to its tightened network structure relative to noncrosslinked adsorbents.
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Affiliation(s)
- Minji Kim
- Department of Chemical Engineering and Materials Science, College of Biochemical Engineering, Sangmyung University, Seoul 03016, Republic of Korea
| | - Jiseon Kang
- Department of Chemical Engineering and Materials Science, College of Biochemical Engineering, Sangmyung University, Seoul 03016, Republic of Korea
| | - Seok Il Yun
- Department of Chemical Engineering and Materials Science, College of Biochemical Engineering, Sangmyung University, Seoul 03016, Republic of Korea.
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Kang J, Yun SI. Chitosan-reinforced PHB hydrogel and aerogel monoliths fabricated by phase separation with the solvent-exchange method. Carbohydr Polym 2022; 284:119184. [DOI: 10.1016/j.carbpol.2022.119184] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/03/2022] [Accepted: 01/22/2022] [Indexed: 01/03/2023]
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Surface Modification of Sponge-like Porous Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/Gelatine Blend Scaffolds for Potential Biomedical Applications. Polymers (Basel) 2022; 14:polym14091710. [PMID: 35566880 PMCID: PMC9104733 DOI: 10.3390/polym14091710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/05/2022] [Accepted: 04/12/2022] [Indexed: 12/04/2022] Open
Abstract
In this study, we described the preparation of sponge-like porous scaffolds that are feasible for medical applications. A porous structure provides a good microenvironment for cell attachment and proliferation. In this study, a biocompatible PHA, poly(3-hydroxybutyrate-co-4-hydroxybutyrate) was blended with gelatine to improve the copolymer’s hydrophilicity, while structural porosity was introduced into the scaffold via a combination of solvent casting and freeze-drying techniques. Scanning electron microscopy results revealed that the blended scaffolds exhibited higher porosity when the 4HB compositions of P(3HB-co-4HB) ranged from 27 mol% to 50 mol%, but porosity decreased with a high 4HB monomer composition of 82 mol%. The pore size, water absorption capacity, and cell proliferation assay results showed significant improvement after the final weight of blend scaffolds was reduced by half from the initial 0.79 g to 0.4 g. The pore size of 0.79g-(P27mol%G10) increased three-fold while the water absorption capacity of 0.4g-(P50mol%G10) increased to 325%. Meanwhile, the cell proliferation and attachment of 0.4g-(P50mol%G10) and 0.4g-(P82mol%G7.5) increased as compared to the initial seeding number. Based on the overall data obtained, we can conclude that the introduction of a small amount of gelatine into P(3HB-co-4HB) improved the physical and biological properties of blend scaffolds, and the 0.4g-(P50mol%G10) shows great potential for medical applications considering its unique structure and properties.
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Improved functionality of cinnamon oil emulsion-based gelatin films as potential edible packaging film for wax apple. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101638] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Advancing Regenerative Medicine Through the Development of Scaffold, Cell Biology, Biomaterials and Strategies of Smart Material. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2021. [DOI: 10.1007/s40883-021-00227-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Huong KH, Sevakumaran V, Amirul AA. P(3HB- co-4HB) as high value polyhydroxyalkanoate: its development over recent decades and current advances. Crit Rev Biotechnol 2021; 41:474-490. [PMID: 33726581 DOI: 10.1080/07388551.2020.1869685] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Polyhydroxyalkanoate (PHA) is a biogenic polymer that has the potential to substitute synthetic plastic in numerous applications. This is due to its unique attribute of being a biodegradable and biocompatible thermoplastic, achievable through microbial fermentation from a broad utilizable range of renewable resources. Among all the PHAs discovered, poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-co-4HB)] stands out as a next generation healthcare biomaterial for having high biopharmaceutical and medical value since it is highly compatible to mammalian tissue. This review provides a critical assessment and complete overview of the development and trend of P(3HB-co-4HB) research over the last few decades, highlighting aspects from the microbial strain discovery to metabolic engineering and bioprocess cultivation strategies. The article also outlines the relevance of P(3HB-co-4HB) as a material for high value-added products in numerous healthcare-related applications.
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Affiliation(s)
- Kai-Hee Huong
- School of Biological Sciences, Universiti Sains Malaysia, Minden, Penang, Malaysia
| | - Vigneswari Sevakumaran
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Kuala Terengganu, Terengganu, Malaysia
| | - A A Amirul
- School of Biological Sciences, Universiti Sains Malaysia, Minden, Penang, Malaysia.,Centre for Chemical Biology, Universiti Sains Malaysia, Bayan Lepas, Penang, Malaysia.,Malaysian Institute of Pharmaceuticals and Nutraceuticals, NIBM, Gelugor, Penang, Malaysia
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Kang J, Choi J, Yun SI. Nonsolvent-induced phase separation of poly(3-hydroxybutyrate) and poly(hydroxybutyrate-co-hydroxyvalerate) blend as a facile platform to fabricate versatile nanofiber gels: Aero-, hydro-, and oleogels. Int J Biol Macromol 2021; 173:44-55. [PMID: 33482207 DOI: 10.1016/j.ijbiomac.2021.01.106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/12/2021] [Accepted: 01/16/2021] [Indexed: 10/22/2022]
Abstract
We demonstrated a strategy to prepare different types of 3-D nanofibrous polymeric gels, including hydro-, aero-, and oleogels by nonsolvent-induced phase separation (NIPS). NIPS-derived gel monoliths of poly(3-hydroxybutyrate) (PHB) and poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) blends were converted into hydrogels and aerogels by solvent exchange and freeze-drying, respectively. The high hydrophobicity and porosity of the nanofibrous PHB/PHBV aerogels enabled them to absorb various oils and swell to 20-30 times their own weight. The pseudo-second-order model was successfully used to describe the oil absorption behavior, and the obtained absorption rate constant increased with increasing PHBV content. The oil-swollen aerogels were highly elastic, thereby indicating that NIPS-derived aerogels are an excellent template for the fabrication of oleogels. With an increase in the PHBV ratio, the gels exhibited reduced modulus and collapse strength but increased collapse strain, thereby revealing higher ductility by compression. The rapid separation and re-binding of the liquid phase entrapped in the nanofiber network resulted in the unique thixotropic properties of the hydro- and oleogels. Indomethacin, a hydrophobic model drug, was successfully incorporated into injectable self-healing oleogels containing soybean oil and aerogels. These gels exhibited excellent cytocompatibility, and a better sustained drug release was observed for the oleogels compared to the aerogels.
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Affiliation(s)
- Jiseon Kang
- Department of Chemical Engineering and Materials Science, Sangmyung University, Seoul 03016, Republic of Korea
| | - Jiwon Choi
- Department of Chemical Engineering and Materials Science, Sangmyung University, Seoul 03016, Republic of Korea
| | - Seok Il Yun
- Department of Chemical Engineering and Materials Science, Sangmyung University, Seoul 03016, Republic of Korea.
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Surface-Modified Highly Biocompatible Bacterial-poly(3-hydroxybutyrate- co-4-hydroxybutyrate): A Review on the Promising Next-Generation Biomaterial. Polymers (Basel) 2020; 13:polym13010051. [PMID: 33375622 PMCID: PMC7795663 DOI: 10.3390/polym13010051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 02/01/2023] Open
Abstract
Polyhydroxyalkanoates (PHAs) are bacteria derived bio-based polymers that are synthesised under limited conditions of nutritional elements with excess carbon sources. Among the members of PHAs, poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [(P(3HB-co-4HB)] emerges as an attractive biomaterial to be applied in medical applications owing to its desirable mechanical and physical properties, non-genotoxicity and biocompatibility eliciting appropriate host tissue responses. The tailorable physical and chemical properties and easy surface functionalisation of P(3HB-co-4HB) increase its practicality to be developed as functional medical substitutes. However, its applicability is sometimes limited due to its hydrophobic nature due to fewer bio-recognition sites. In this review, we demonstrate how surface modifications of PHAs, mainly P(3HB-co-4HB), will overcome these limitations and facilitate their use in diverse medical applications. The integration of nanotechnology has drastically enhanced the functionality of P(3HB-co-4HB) biomaterials for application in complex biological environments of the human body. The design of versatile P(3HB-co-4HB) materials with surface modifications promise a non-cytotoxic and biocompatible material without inducing severe inflammatory responses for enhanced effective alternatives in healthcare biotechnology. The enticing work carried out with P(3HB-co-4HB) promises to be one of the next-generation materials in biomedicines which will facilitate translation into the clinic in the future.
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Vigneswari S, Gurusamy TP, Abdul Khalil HPS, Ramakrishna S, Amirul AAA. Elucidation of Antimicrobial Silver Sulfadiazine (SSD) Blend/Poly(3-Hydroxybutyrate- co-4-Hydroxybutyrate) Immobilised with Collagen Peptide as Potential Biomaterial. Polymers (Basel) 2020; 12:polym12122979. [PMID: 33327456 PMCID: PMC7764998 DOI: 10.3390/polym12122979] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/06/2020] [Accepted: 12/10/2020] [Indexed: 01/04/2023] Open
Abstract
The quest for a suitable biomaterial for medical application and tissue regeneration has resulted in the extensive research of surface functionalization of material. Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-co-4HB)] is a bacterial polymer well-known for its high levels of biocompatibility, non-genotoxicity, and minimal tissue response. We have designed a porous antimicrobial silver SSD blend/poly(3HB-co-4HB)-collagen peptide scaffold using a combination of simple techniques to develop a scaffold with an inter-connected microporous pore in this study. The collagen peptide was immobilised via -NH2 group via aminolysis. In order to improve the antimicrobial performance of the scaffold, silver sulfadiazine (SSD) was impregnated in the scaffolds. To confirm the immobilised collagen peptide and SSD, the scaffold was characterized using FTIR. Herein, based on the cell proliferation assay of the L929 fibroblast cells, enhanced bioactivity of the scaffold with improved wettability facilitated increased cell proliferation. The antimicrobial activity of the SSD blend/P(3HB-co-4HB)-collagen peptide in reference to the pathogenic Gram-negative, Gram-positive bacteria and yeast Candida albicans exhibited SSD blend/poly(3HB-co-4HB)-12.5 wt% collagen peptide as significant construct of biocompatible antibacterial biomaterials. Thus, SSD blend/P(3HB-co-4HB)-collagen peptide scaffold from this finding has high potential to be further developed as biomaterial.
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Affiliation(s)
- Sevakumaran Vigneswari
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | | | | | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore 117581, Singapore;
| | - Al-Ashraf Abdullah Amirul
- School of Biological Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia;
- Centre for Chemical Biology, Universiti Sains Malaysia, Bayan Lepas, Penang 11900, Malaysia
- Malaysian Institute of Pharmaceuticals and Nutraceuticals, NIBM, Penang 11700, Malaysia
- Correspondence:
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Le NTT, Nguyen TNQ, Cao VD, Hoang DT, Ngo VC, Hoang Thi TT. Recent Progress and Advances of Multi-Stimuli-Responsive Dendrimers in Drug Delivery for Cancer Treatment. Pharmaceutics 2019; 11:E591. [PMID: 31717376 PMCID: PMC6920789 DOI: 10.3390/pharmaceutics11110591] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/02/2019] [Accepted: 11/06/2019] [Indexed: 12/20/2022] Open
Abstract
Despite the fact that nanocarriers as drug delivery systems overcome the limitation of chemotherapy, the leakage of encapsulated drugs during the delivery process to the target site can still cause toxic effects to healthy cells in other tissues and organs in the body. Controlling drug release at the target site, responding to stimuli that originated from internal changes within the body, as well as stimuli manipulated by external sources has recently received significant attention. Owning to the spherical shape and porous structure, dendrimer is utilized as a material for drug delivery. Moreover, the surface region of dendrimer has various moieties facilitating the surface functionalization to develop the desired material. Therefore, multi-stimuli-responsive dendrimers or 'smart' dendrimers that respond to more than two stimuli will be an inspired attempt to achieve the site-specific release and reduce as much as possible the side effects of the drug. The aim of this review was to delve much deeper into the recent progress of multi-stimuli-responsive dendrimers in the delivery of anticancer drugs in addition to the major potential challenges.
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Affiliation(s)
- Ngoc Thuy Trang Le
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam;
| | - Thi Nhu Quynh Nguyen
- Faculty of Pharmacy, Lac Hong University, Buu Long Ward, Bien Hoa City, Dong Nai Province 810000, Vietnam; (T.N.Q.N.); (V.D.C.); (D.T.H.); (V.C.N.)
| | - Van Du Cao
- Faculty of Pharmacy, Lac Hong University, Buu Long Ward, Bien Hoa City, Dong Nai Province 810000, Vietnam; (T.N.Q.N.); (V.D.C.); (D.T.H.); (V.C.N.)
| | - Duc Thuan Hoang
- Faculty of Pharmacy, Lac Hong University, Buu Long Ward, Bien Hoa City, Dong Nai Province 810000, Vietnam; (T.N.Q.N.); (V.D.C.); (D.T.H.); (V.C.N.)
| | - Van Cuong Ngo
- Faculty of Pharmacy, Lac Hong University, Buu Long Ward, Bien Hoa City, Dong Nai Province 810000, Vietnam; (T.N.Q.N.); (V.D.C.); (D.T.H.); (V.C.N.)
| | - Thai Thanh Hoang Thi
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
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Grigore ME, Grigorescu RM, Iancu L, Ion RM, Zaharia C, Andrei ER. Methods of synthesis, properties and biomedical applications of polyhydroxyalkanoates: a review. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:695-712. [DOI: 10.1080/09205063.2019.1605866] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mădălina Elena Grigore
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
| | - Ramona Marina Grigorescu
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
| | - Lorena Iancu
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
| | - Rodica-Mariana Ion
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
- Valahia University, Materials Engineering Department, 13th Aleey Sinaia, Targoviste, Romania
| | - Cătălin Zaharia
- Advanced Polymer Materials Group, University Politehnica of Bucharest, Bucharest, Romania
| | - Elena Ramona Andrei
- "Evaluation and Conservation of Cultural Heritage” Research Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
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