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Sustainable applications of polyhydroxyalkanoates in various fields: A critical review. Int J Biol Macromol 2022; 221:1184-1201. [PMID: 36113591 DOI: 10.1016/j.ijbiomac.2022.09.098] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 09/06/2022] [Accepted: 09/10/2022] [Indexed: 01/23/2023]
Abstract
PHA is one of the most promising candidates in bio-polymer family which is biodegradable and environment-friendly in nature. In recent years, it has been applied as a biodegradable alternative for petroleum-based plastic across different domains. In literature, several research groups have scrutinised the biocompatibility and biodegradability of PHA in both in vivo settings as well as in in vitro conditions. Microbial yield polyhydroxyalkanoates (PHAs) are promoted at present as biodegradable plastics. On the other hand, only a limited number of products is being commercially manufactured out of PHAs (e.g., bottles). A succession of microbes (prokaryotes in addition to eukaryotes) has been identified as potential candidates that can disintegrate PHAs. These materials have been successfully employed in packaging industry, medical devices and implants, moulded goods, paper coatings, adhesives, performance additives, mulch films, non-woven fabrics, etc. The present paper reviews and focuses on the potential applications of PHA and its derivatives in different industries.
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2
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Sarfraz M, Qamar S, Rehman MU, Tahir MA, Ijaz M, Ahsan A, Asim MH, Nazir I. Nano-Formulation Based Intravesical Drug Delivery Systems: An Overview of Versatile Approaches to Improve Urinary Bladder Diseases. Pharmaceutics 2022; 14:pharmaceutics14091909. [PMID: 36145657 PMCID: PMC9501312 DOI: 10.3390/pharmaceutics14091909] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/25/2022] [Accepted: 08/30/2022] [Indexed: 12/02/2022] Open
Abstract
Intravesical drug delivery is a direct drug delivery approach for the treatment of various bladder diseases. The human urinary bladder has distinctive anatomy, making it an effective barrier against any toxic agent seeking entry into the bloodstream. This screening function of the bladder derives from the structure of the urothelium, which acts as a semi-permeable barrier. However, various diseases related to the urinary bladder, such as hyperactive bladder syndrome, interstitial cystitis, cancer, urinary obstructions, or urinary tract infections, can alter the bladder’s natural function. Consequently, the intravesical route of drug delivery can effectively treat such diseases as it offers site-specific drug action with minimum side effects. Intravesical drug delivery is the direct instillation of medicinal drugs into the urinary bladder via a urethral catheter. However, there are some limitations to this method of drug delivery, including the risk of washout of the therapeutic agents with frequent urination. Moreover, due to the limited permeability of the urinary bladder walls, the therapeutic agents are diluted before the process of permeation, and consequently, their efficiency is compromised. Therefore, various types of nanomaterial-based delivery systems are being employed in intravesical drug delivery to enhance the drug penetration and retention at the targeted site. This review article covers the various nanomaterials used for intravesical drug delivery and future aspects of these nanomaterials for intravesical drug delivery.
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Affiliation(s)
- Muhammad Sarfraz
- College of Pharmacy, Al-Ain University, Al-Ain 64141, United Arab Emirates
| | - Shaista Qamar
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Masood Ur Rehman
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad 45320, Pakistan
| | - Muhammad Azam Tahir
- Department of Pharmacy, Khalid Mahmood Institute of Medical Sciences, Sialkot 51310, Pakistan
| | - Muhammad Ijaz
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
- Correspondence: (M.I.); or (I.N.); Tel.: +92-306-3700456 (M.I.); +92-0992-383591 (I.N.)
| | - Anam Ahsan
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | | | - Imran Nazir
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
- Correspondence: (M.I.); or (I.N.); Tel.: +92-306-3700456 (M.I.); +92-0992-383591 (I.N.)
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3
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Assaf SM, Ghanem AM, Alhaj SA, Khalil EA, Sallam AA. Formulation and Evaluation of Eudragit® RL Polymeric Double Layer Films for Prolonged-Release Transdermal Delivery of Tamsulosin Hydrochloride. AAPS PharmSciTech 2022; 23:210. [PMID: 35902492 DOI: 10.1208/s12249-022-02358-x] [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: 04/23/2022] [Accepted: 07/07/2022] [Indexed: 11/30/2022] Open
Abstract
Transdermal drug delivery systems (TDDSs) were developed for prolonged tamsulosin (TMS) delivery. Double layer (DL) TDDSs were prepared using Eudragit® RL by conventional film-forming. Ethylene-vinyl acetate was used as the backing layer, triethylcitrate as plasticizer, and Capmul® PG-8-70 NF and Captex 170 EP as penetration enhancers (PEs). An increase in either drug or PE concentration caused a significant increase in drug permeation flux. Modulation of drug permeation across Strat-M® membrane was examined using a single layer (SL) having the same thickness and drug content as the DLs, while the DLs were formulated to have variable drug spatial distribution across each layer (DL 4:6 and DL 6:4). SL/TDDS showed significantly higher daily drug permeation than DL/TDDSs for the first 4 days which could be related to the presence of high TMS concentration located on the upper surface of SL/TDDS as a result of solute migration of TMS during the drying process. However, this increase was followed by a progressive linear decrease after 5 days. Deflection points that were characterized by lower drug flux had been shown by SL/TDDS at more than one-point times. In contrast, DL 4:6 and DL 6:4 TDDSs demonstrated an ability to sustain TMS delivery for up to 2 weeks.
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Affiliation(s)
- Shereen M Assaf
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, P. O. Box 3030, Irbid, 22110, Jordan.
| | - Aya M Ghanem
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, P. O. Box 3030, Irbid, 22110, Jordan
| | - Shayma'a A Alhaj
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, P. O. Box 3030, Irbid, 22110, Jordan
| | - Enam A Khalil
- Department of Pharmaceutics and Pharmaceutical Technology, School of Pharmacy, The University of Jordan, Amman, 11942, Jordan
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Review of the Developments of Bacterial Medium-Chain-Length Polyhydroxyalkanoates (mcl-PHAs). Bioengineering (Basel) 2022; 9:bioengineering9050225. [PMID: 35621503 PMCID: PMC9137849 DOI: 10.3390/bioengineering9050225] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 12/30/2022] Open
Abstract
Synthetic plastics derived from fossil fuels—such as polyethylene, polypropylene, polyvinyl chloride, and polystyrene—are non-degradable. A large amount of plastic waste enters landfills and pollutes the environment. Hence, there is an urgent need to produce biodegradable plastics such as polyhydroxyalkanoates (PHAs). PHAs have garnered increasing interest as replaceable materials to conventional plastics due to their broad applicability in various purposes such as food packaging, agriculture, tissue-engineering scaffolds, and drug delivery. Based on the chain length of 3-hydroxyalkanoate repeat units, there are three types PHAs, i.e., short-chain-length (scl-PHAs, 4 to 5 carbon atoms), medium-chain-length (mcl-PHAs, 6 to 14 carbon atoms), and long-chain-length (lcl-PHAs, more than 14 carbon atoms). Previous reviews discussed the recent developments in scl-PHAs, but there are limited reviews specifically focused on the developments of mcl-PHAs. Hence, this review focused on the mcl-PHA production, using various carbon (organic/inorganic) sources and at different operation modes (continuous, batch, fed-batch, and high-cell density). This review also focused on recent developments on extraction methods of mcl-PHAs (solvent, non-solvent, enzymatic, ultrasound); physical/thermal properties (Mw, Mn, PDI, Tm, Tg, and crystallinity); applications in various fields; and their production at pilot and industrial scales in Asia, Europe, North America, and South America.
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Application of Dendrimers in Anticancer Diagnostics and Therapy. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103237. [PMID: 35630713 PMCID: PMC9144149 DOI: 10.3390/molecules27103237] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 11/16/2022]
Abstract
The application of dendrimeric constructs in medical diagnostics and therapeutics is increasing. Dendrimers have attracted attention due to their compact, spherical three-dimensional structures with surfaces that can be modified by the attachment of various drugs, hydrophilic or hydrophobic groups, or reporter molecules. In the literature, many modified dendrimer systems with various applications have been reported, including drug and gene delivery systems, biosensors, bioimaging contrast agents, tissue engineering, and therapeutic agents. Dendrimers are used for the delivery of macromolecules, miRNAs, siRNAs, and many other various biomedical applications, and they are ideal carriers for bioactive molecules. In addition, the conjugation of dendrimers with antibodies, proteins, and peptides allows for the design of vaccines with highly specific and predictable properties, and the role of dendrimers as carrier systems for vaccine antigens is increasing. In this work, we will focus on a review of the use of dendrimers in cancer diagnostics and therapy. Dendrimer-based nanosystems for drug delivery are commonly based on polyamidoamine dendrimers (PAMAM) that can be modified with drugs and contrast agents. Moreover, dendrimers can be successfully used as conjugates that deliver several substances simultaneously. The potential to develop dendrimers with multifunctional abilities has served as an impetus for the design of new molecular platforms for medical diagnostics and therapeutics.
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Patel V, Patel P, Patel JV, Patel PM. Dendrimer as a versatile platform for biomedical application: A review. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100516] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Mascarenhas-Melo F, Carvalho A, Beatriz S. Gonçalves M, Cláudia Paiva-Santos A, Veiga F. Nanocarriers for the topical treatment of psoriasis - pathophysiology, conventional treatments, nanotechnology, regulatory and toxicology. Eur J Pharm Biopharm 2022; 176:95-107. [DOI: 10.1016/j.ejpb.2022.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/24/2022] [Accepted: 05/17/2022] [Indexed: 11/24/2022]
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Ali F, Neha K, Sharma K, Khasimbi S, Chauhan G. Nanotechnology-based medicinal products and patents: a promising way to treat psoriasis. Curr Drug Deliv 2022; 19:587-599. [PMID: 35081890 DOI: 10.2174/1567201819666220126163943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/28/2021] [Accepted: 12/13/2021] [Indexed: 11/22/2022]
Abstract
Psoriasis is an autoimmune skin disorder that is characterised by chronic inflammation and erythematous scaly patches. It has a significant impact on the patient's quality of life and can cause psychological stress. There are several aspects which cause psoriasis for instance, environmental issues, immune disorders, bacterial infections, and genetic issues. Plentiful therapeutic means or treatments are accessible, but not any of them can completely and effectively cure psoriasis without hindering patient compliance. Hence, it becomes challenging to discover a new drug moiety or any drug delivery method to cure psoriasis. Conventional treatment of psoriasis involves anti-inflammatory agents, immune suppressants, phototherapy, and biologic treatment, those were given in different forms such as topical, oral, or systemic formulations, but these all were unsuccessful to accomplish complete reduction of psoriasis as well as causing adverse side effects. In terms of dose frequency, doses, efficacy, and side effects, nanotechnology-based new formulations are the most promising prospects for addressing the challenges and limits associated with present psoriasis formulations. Hence, our major goal of this review is to present various advanced nanotechnological approaches for effective topical treatment of psoriasis. In short, nano-formulations continue to be formed as very promising modality in the treatment of psoriasis as they suggest improved penetration, targeted delivery, increased safety, and efficacy.
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Affiliation(s)
- Faraat Ali
- Department of Inspection and Enforcement, Laboratory Services, Botswana Medicines Regulatory Authority, Plot 112, International Finance Park, Gaborone, Botswana
| | - Kumari Neha
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), DPSR University, New Delhi, India
| | - Kamna Sharma
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), DPSR University, New Delhi, India
| | - Shaik Khasimbi
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), DPSR University, New Delhi, India
| | - Garima Chauhan
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), DPSR University, New Delhi, India
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Supercritical CO 2 Assisted Impregnation of Ibuprofen on Medium-Chain-Length Polyhydroxyalkanoates (mcl-PHA). Molecules 2021; 26:molecules26164772. [PMID: 34443357 PMCID: PMC8400196 DOI: 10.3390/molecules26164772] [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: 07/21/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 11/29/2022] Open
Abstract
In this work, we propose the utilization of scCO2 to impregnate ibuprofen into the mcl-PHA matrix produced by Pseudomonas chlororaphis subs. aurantiaca (DSM 19603). The biopolymer has adhesive properties, is biocompatible and has a melting temperature of 45 °C. Several conditions, namely, pressure (15 and 20 MPa) and impregnation time (30 min, 1 h and 3 h) were tested. The highest ibuprofen content (90.8 ± 6.5 mg of ibuprofen/gPHA) was obtained at 20 MPa and 40 °C, for 1 h, with an impregnation rate of 89 mg/(g·h). The processed mcl-PHA samples suffered a plasticization, as shown by the decrease of 6.5 °C in the Tg, at 20 MPa. The polymer’s crystallinity was also affected concomitantly with the matrices’ ibuprofen content. For all the impregnation conditions tested the release of ibuprofen from the biopolymer followed a type II release profile. This study has demonstrated that the mcl-PHA produced by P. chlororaphis has a great potential for the development of novel topical drug delivery systems.
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Delyanee M, Akbari S, Solouk A. Amine-terminated dendritic polymers as promising nanoplatform for diagnostic and therapeutic agents' modification: A review. Eur J Med Chem 2021; 221:113572. [PMID: 34087497 DOI: 10.1016/j.ejmech.2021.113572] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/24/2021] [Accepted: 05/07/2021] [Indexed: 12/22/2022]
Abstract
It is often challenging to design diagnostic and therapeutic agents that fulfill all functional requirements. So, bulk and surface modifications as a common approach for biomedical applications have been suggested. There have been considerable research interests in using nanomaterials to the prementioned methods. Among all nanomaterials, dendritic materials with three-dimensional structures, host-guest properties, and nano-polymeric dimensions have received considerable attention. Amine-terminated dendritic structures including, polyamidoamine (PAMAM), polypropyleneimine (PPI), and polyethyleneimine (PEI), have been enormously utilized in bio-modification. This review briefly described the structure of these three common dendritic polymers and their use to modify diagnostic and therapeutic agents in six major applications, including drug delivery, gene delivery, biosensor, bioimaging, tissue engineering, and antimicrobial activity. The current review covers amine-terminated dendritic polymers toxicity challenging and improvement strategies as well.
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Affiliation(s)
- Mahsa Delyanee
- Biomedical Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Somaye Akbari
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran.
| | - Atefeh Solouk
- Biomedical Engineering Department, Amirkabir University of Technology, Tehran, Iran
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Silva JB, Pereira JR, Marreiros BC, Reis MA, Freitas F. Microbial production of medium-chain length polyhydroxyalkanoates. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.01.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Tan IKP, Foong CP, Tan HT, Lim H, Zain NAA, Tan YC, Hoh CC, Sudesh K. Polyhydroxyalkanoate (PHA) synthase genes and PHA-associated gene clusters in Pseudomonas spp. and Janthinobacterium spp. isolated from Antarctica. J Biotechnol 2020; 313:18-28. [PMID: 32171790 DOI: 10.1016/j.jbiotec.2020.03.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/07/2020] [Accepted: 03/10/2020] [Indexed: 12/31/2022]
Abstract
The polyhydroxyalkanoate (PHA) producing capability of four bacterial strains isolated from Antarctica was reported in a previous study. This study analyzed the PHA synthase genes and the PHA-associated gene clusters from the two antarctic Pseudomonas isolates (UMAB-08 and UMAB-40) and the two antarctic Janthinobacterium isolates (UMAB-56 and UMAB-60) through whole-genome sequence analysis. The Pseudomonas isolates were found to carry PHA synthase genes which fall into two different PHA gene clusters, namely Class I and Class II, which are involved in the biosynthesis of short-chain-length-PHA (SCL-PHA) and medium-chain-length-PHA (MCL-PHA), respectively. On the other hand, the Janthinobacterium isolates carry a Class I and an uncharacterized putative PHA synthase genes. No other gene involved in PHA synthesis was detected in close proximity to the uncharacterized putative PHA synthase gene in the Janthinobacterium isolates, therefore it falls into a separate clade from the ordinary Class I, II, III and IV clades of PHA synthase (PhaC) phylogenetic tree. Multiple sequence alignment showed that the uncharacterized putative PHA synthase gene contains all the highly conserved amino acid residues and the proposed catalytic triad of PHA synthase. PHA biosynthesis and in vitro PhaC enzymatic assay results showed that this uncharacterized putative PHA synthase from Janthinobacterium sp. UMAB-60 is funtional. This report adds new knowledge to the PHA synthase database as we describe scarce information of PHA synthase genes and PHA-associated gene clusters from the antarctic bacterial isolates (extreme and geographically isolated environment) and comparing with those from non-antarctic PHA-producing bacteria.
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Affiliation(s)
- Irene Kit Ping Tan
- Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Choon Pin Foong
- Ecobiomaterial Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
| | - Hua Tiang Tan
- Ecobiomaterial Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
| | - Hui Lim
- Ecobiomaterial Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
| | - Noor-Afiqah Ahmad Zain
- Ecobiomaterial Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
| | - Yung Chie Tan
- Department of Science and Technology, Codon Genomics S/B, Taman Dutamas, Balakong, 43200 Seri Kembangan, Malaysia
| | - Chee Choong Hoh
- Department of Science and Technology, Codon Genomics S/B, Taman Dutamas, Balakong, 43200 Seri Kembangan, Malaysia
| | - Kumar Sudesh
- Ecobiomaterial Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia.
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Complete Genome Sequence of a Novel Polyhydroxyalkanoate (PHA) Producer, Jeongeupia sp. USM3 (JCM 19920) and Characterization of Its PHA Synthases. Curr Microbiol 2020; 77:500-508. [PMID: 31893298 DOI: 10.1007/s00284-019-01852-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 12/17/2019] [Indexed: 10/25/2022]
Abstract
A novel polyhydroxyalkanoate (PHA)-producing bacterium, Jeongeupia sp. USM3 (JCM 19920) was isolated from the limestone soil at Gua Tempurung, Perak, Malaysia. This is the first report on the complete genome sequence for the genus Jeongeupia. This genome consists of a circular chromosome with a size of 3,788,814 bp and contains 3557 genes. Two PHA synthase (phaC) genes encoding for the key enzyme in the polymerization of PHA monomers and other PHA-associated genes were identified from the genome. Phylogenetic analysis of the PhaC protein sequences has revealed that both PhaC1 and PhaC2 of Jeongeupia sp. USM3 are categorized as Class I PHA synthases with 56% similarity to each other. Both of the PHA synthase genes of this isolate were cloned and heterologously expressed in a PHA mutant strain Cupriavidus necator PHB-4. The ability of the transformants to accumulate PHA showed that both PhaC1 and PhaC2 were functional.
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Chung J, Kwak S. Effect of nanoscale confinement on molecular mobility and drug release properties of cellulose acetate/sulindac nanofibers. J Appl Polym Sci 2019. [DOI: 10.1002/app.47863] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Junho Chung
- Department of Materials Science and EngineeringSeoul National University, 1 Gwanak‐ro, Gwanak‐gu Seoul 08826 South Korea
| | - Seung‐Yeop Kwak
- Department of Materials Science and EngineeringSeoul National University, 1 Gwanak‐ro, Gwanak‐gu Seoul 08826 South Korea
- Research Institute of Advanced Materials (RIAM)Seoul National University, 1 Gwanak‐ro, Gwanak‐gu Seoul 08826 South Korea
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Jijie R, Barras A, Boukherroub R, Szunerits S. Nanomaterials for transdermal drug delivery: beyond the state of the art of liposomal structures. J Mater Chem B 2017; 5:8653-8675. [PMID: 32264260 DOI: 10.1039/c7tb02529g] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A wide range of biomedical materials have been proposed to meet the different needs for controlled oral or intravenous drug delivery. The advantages of oral delivery such as self-administration of a pre-determined drug dose at defined time intervals makes it the most convenient means for the delivery of small molecular drugs. It fails however to delivery therapeutic macromolecules due to rapid degradation in the stomach and size-limited transport across the epithelium. The primary mode of administration of macromolecules is presently via injection. This administration mode is not without limitations, as the invasive nature of injections elicits pain and decreases patients' compliance. Alternative routes for drug delivery have been looked for, one being the skin. Delivery of drugs via the skin is based on the therapeutics penetrating the stratum corneum (SC) with the advantage of overcoming first-pass metabolism of drugs, to deliver drugs with a short-half-life time more easily and to eliminate frequent administrations to maintain constant drug delivery. The transdermal market still remains limited to a narrow range of drugs. The low permeability of the SC to water-soluble and macromolecular drugs poses significant challenges to transdermal administration via passive diffusion through the skin, as is the case for all topically administered drug formulations intended to bring the therapeutic into the general circulation. To widen the scope of drugs for transdermal delivery, new procedures to enhance skin permeation to hydrophilic drugs and macromolecules are under development. Next to the integration of skin enhancers into pharmaceutical formulations, nanoparticles based on lipid carriers have been widely considered and reviewed. While being briefly reviewed here, the main focus of this article is on current advancements using polymeric and metallic nanoparticles. Next to these passive technologies, the handful of active technologies for local and systemic transdermal drug delivery will be discussed and put into perspective. While passive approaches dominate the literature and the transdermal market, active delivery based on microneedles or iontophoresis approaches have shown great promise for transdermal drug delivery and have entered the market, in the last decade. This review gives an overall idea of the current activities in this field.
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Affiliation(s)
- Roxana Jijie
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520, IEMN, F-59000 Lille, France.
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Qiu X, Cao K, Lin T, Chen W, Yuan A, Wu J, Hu Y, Guo H. Drug delivery system based on dendritic nanoparticles for enhancement of intravesical instillation. Int J Nanomedicine 2017; 12:7365-7374. [PMID: 29066888 PMCID: PMC5644558 DOI: 10.2147/ijn.s140111] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Intravesical instillation of antitumor agents following transurethral resection of bladder tumors is the standard strategy for the treatment of superficial bladder cancers. However, the efficacy of current intravesical instillation is limited partly due to the poor permeability of the urothelium. We therefore aimed to develop a high-penetrating, target-releasing drug delivery system to improve the efficacy of intravesical instillation. PAMAM, a dendrimer, were conjugated with polyethylene glycol (PEG) to form PEG-PAMAM complex as a nanocarrier. Doxorubicin (DOX) was then encapsulated into PEG-PAMAM to generate DOX-loaded PEG-PAMAM nanoparticles (PEG-PAMAM-DOX). Our results indicated that the PEG-PAMAM was a stable nanocarrier with small size and great biosafety. The release of DOX from PEG-PAMAM-DOX was sluggish but could be effectively triggered in an acid microenvironment (pH =5.0). As a drug carrier, PEG-PAMAM could penetrate mice bladder urothelium effectively and increase the amount of DOX within the bladder wall after intravesical instillation. The antitumor effect of PEG-PAMAM-DOX was evaluated using an orthotopic bladder cancer model in mice. Compared to free DOX, PEG-PAMAM-DOX showed significantly improved efficacy of DOX for intravesical instillation with limited side effects. In conclusion, we successfully developed a PEG-PAMAM-based drug delivery system to enhance the antitumor effect of intravesical instillation.
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Affiliation(s)
- Xuefeng Qiu
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China.,State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, China
| | - Kai Cao
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China.,State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, China
| | - Tingsheng Lin
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China.,State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, China
| | - Wei Chen
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
| | - Ahu Yuan
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, China
| | - Jinhui Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, China
| | - Yiqiao Hu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, China
| | - Hongqian Guo
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
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Yang R, Wei T, Goldberg H, Wang W, Cullion K, Kohane DS. Getting Drugs Across Biological Barriers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:10.1002/adma.201606596. [PMID: 28752600 PMCID: PMC5683089 DOI: 10.1002/adma.201606596] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 05/30/2017] [Indexed: 05/13/2023]
Abstract
The delivery of drugs to a target site frequently involves crossing biological barriers. The degree and nature of the impediment to flux, as well as the potential approaches to overcoming it, depend on the tissue, the drug, and numerous other factors. Here an overview of approaches that have been taken to crossing biological barriers is presented, with special attention to transdermal drug delivery. Technology and knowledge pertaining to addressing these issues in a variety of organs could have a significant clinical impact.
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Affiliation(s)
- Rong Yang
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Children's Hospital Boston, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Tuo Wei
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Children's Hospital Boston, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Hannah Goldberg
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Children's Hospital Boston, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Weiping Wang
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Children's Hospital Boston, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Kathleen Cullion
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Children's Hospital Boston, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Daniel S Kohane
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Children's Hospital Boston, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA
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Thorat Gadgil BS, Killi N, Rathna GVN. Polyhydroxyalkanoates as biomaterials. MEDCHEMCOMM 2017; 8:1774-1787. [PMID: 30108887 PMCID: PMC6084198 DOI: 10.1039/c7md00252a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Accepted: 06/23/2017] [Indexed: 12/18/2022]
Abstract
Polyhydroxyalkanoates (PHAs) are biopolymers synthesized by bacteria under unbalanced growth conditions. These biopolymers are considered as potential biomaterials for future applications because they are biocompatible, biodegradable, and easy to produce and functionalize with strong mechanical strength. Currently, PHAs are being extensively innovated for biomedical applications due to their prerequisite properties. The wide range of biomedical applications includes drug delivery systems, implants, tissue engineering, scaffolds, artificial organ constructs, etc. In this article we review the utility of PHAs in various forms (bulk/nano) for biomedical applications so as to bring about the future vision for PHAs as biomaterials for the advancement of research and technology.
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Affiliation(s)
- Bhagyashri S Thorat Gadgil
- Polymer Science and Engineering division , CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pashan , Pune , 411008 India .
| | - Naresh Killi
- Polymer Science and Engineering division , CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pashan , Pune , 411008 India .
| | - Gundloori V N Rathna
- Polymer Science and Engineering division , CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pashan , Pune , 411008 India .
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Perspectives on dendritic architectures and their biological applications: From core to cell. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:61-83. [PMID: 28564631 DOI: 10.1016/j.jphotobiol.2017.05.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/15/2017] [Accepted: 05/18/2017] [Indexed: 12/24/2022]
Abstract
The challenges of medicine today include the increasing stipulation for sensitive and effective systems that can improve the pathological responses with a simultaneous reduction in accumulation and drug side effects. The demand can be fulfilled through the advancements in nanomedicine that includes nanostructures and nanodevices for diagnosing, treating, and prevention of various diseases. In this respect, the nanoscience provides various novel techniques with carriers such as micelles, dendrimers, particles and vesicles for the transportation of active moieties. Further, an efficient way to improve these systems is through stimuli a responsive system that utilizes supramolecular hyperbranched structures to meet the above criteria. The stimuli-responsive dendritic architectures exhibit spatial, temporal, convenient, effective, safety and controlled drug release in response to specific trigger through electrostatic interactions plus π stacking. The stimuli-responsive systems are capable of sequestering the drug molecules underneath a predefined set of conditions and discharge them in a different environment through either exogenous or endogenous stimulus. The incorporation of photoresponsive moieties at various components of dendrimer such as core, branches or at the peripheral end exaggerates its significance in various allied fields of nanotechnology which includes sensors, photoswitch, electronic widgets and in drug delivery systems. This is due to the light instigated geometrical modifications at the core or at the surface molecules which generates huge conformational changes throughout the hyperbranched structure. Further, numerous synthetic methodologies have been investigated for utilization of dendrimers in therapeutic drug delivery and its applicability towards stimuli responsive systems such as photo-instigated, thermal-instigated, and pH-instigated hyperbranched structures and their advancement in the field of nanomedicine. This paper highlights the fascinating theoretical advances and principal mechanisms of dendrimer synthesis and their ability to capture light that strengthens its applicability from radiant energy to medical photonics.
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Ultrasound-Assisted Rapid Extraction of Bacterial Intracellular Medium-Chain-Length Poly(3-Hydroxyalkanoates) (mcl-PHAs) in Medium Mixture of Solvent/Marginal Non-solvent. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2015. [DOI: 10.1007/s13369-015-1833-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Huang B, Dong WJ, Yang GY, Wang W, Ji CH, Zhou FN. Dendrimer-coupled sonophoresis-mediated transdermal drug-delivery system for diclofenac. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:3867-76. [PMID: 26229447 PMCID: PMC4517524 DOI: 10.2147/dddt.s75702] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The purpose of the present study was to develop a novel transdermal drug-delivery system comprising a polyamidoamine dendrimer coupled with sonophoresis to enhance the permeation of diclofenac (DF) through the skin. The novel transdermal drug-delivery system was developed by using a statistical Plackett–Burman design. Hairless male Wistar rat skin was used for the DF-permeation study. Coupling media concentration, ultrasound-application time, duty cycle, distance from probe to skin, and a third-generation polyamidoamine-dendrimer concentration were selected as independent variables, while in vitro drug release was selected as a dependent variable. Independent variables were found to be statistically significant (P<0.05). DF gel without dendrimer and ultrasound treatment to skin (passive delivery, run 13) showed 56.69 µg/cm2 cumulative drug permeated through the skin, while the DF-dendrimer gel without sonophoresis treatment (run 14) showed 257.3 µg/cm2 cumulative drug permeated through the skin after 24 hours. However, when the same gel was applied to sonophoresis-treated skin, drastic permeation enhancement was observed. In the case of run 3, the cumulative drug that permeated through the skin was 935.21 µg/cm2. It was concluded that dendrimer-coupled sonophoresis-mediated transdermal drug delivery system has the potential to enhance the permeation of DF through the skin.
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Affiliation(s)
- Bin Huang
- Department of Ultrasound, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Wei-Jiang Dong
- Department of Ultrasonography, Tongxiang Chinese Medicine Hospital, Jiaxing, People's Republic of China
| | - Gao-Yi Yang
- Department of Ultrasound, Hangzhou Red Cross Hospital, Hangzhou, People's Republic of China
| | - Wei Wang
- Department of Ultrasound, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Cong-Hua Ji
- Department of Ultrasound, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Fei-Ni Zhou
- Department of Medical Records and Statistics, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
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Yang J, Hu J, He B, Cheng Y. Transdermal delivery of therapeutic agents using dendrimers (US20140018435A1): a patent evaluation. Expert Opin Ther Pat 2015; 25:1209-14. [DOI: 10.1517/13543776.2015.1044974] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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24
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Garg T, Rath G, Goyal AK. Nanotechnological approaches for the effective management of psoriasis. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1374-82. [PMID: 25919064 DOI: 10.3109/21691401.2015.1037885] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Psoriasis is a chronic disorder with erythematous scaly patches, which typically affects the exposed surfaces of the body and scalp. Various factors such as bacterial infection, genetic and environmental factors, and immune disorders play an important role in causing psoriasis. Different types of psoriasis can be observed, such as guttate psoriasis, inverse psoriasis, pustular psoriasis, and psoriatic arthritis. Various ancient, topical, and systemic approaches have been used to control the disease, but have failed to achieve a complete reduction of the disease, besides causing toxic effects. Therefore, our main aim in this review article is to introduce the different advanced nanotechnological approaches for effective treatment of psoriasis.
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Affiliation(s)
- Tarun Garg
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga , Punjab , India
| | - Goutam Rath
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga , Punjab , India
| | - Amit K Goyal
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga , Punjab , India
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25
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Mutalik S, Shetty PK, Kumar A, Kalra R, Parekh HS. Enhancement in deposition and permeation of 5-fluorouracil through human epidermis assisted by peptide dendrimers. Drug Deliv 2013; 21:44-54. [DOI: 10.3109/10717544.2013.845861] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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26
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Expand classical drug administration ways by emerging routes using dendrimer drug delivery systems: a concise overview. Adv Drug Deliv Rev 2013; 65:1316-30. [PMID: 23415951 DOI: 10.1016/j.addr.2013.01.001] [Citation(s) in RCA: 238] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 12/08/2012] [Accepted: 01/30/2013] [Indexed: 12/21/2022]
Abstract
Drugs are introduced into the body by numerous routes such as enteral (oral, sublingual and rectum administration), parenteral (intravascular, intramuscular, subcutaneous and inhalation administration), or topical (skin and mucosal membranes). Each route has specific purposes, advantages and disadvantages. Today, the oral route remains the preferred one for different reasons such as ease and compliance by patients. Several nanoformulated drugs have been already approved by the FDA, such as Abelcet®, Doxil®, Abraxane® or Vivagel®(Starpharma) which is an anionic G4-poly(L-lysine)-type dendrimer showing potent topical vaginal microbicide activity. Numerous biochemical studies, as well as biological and pharmacological applications of both dendrimer based products (dendrimers as therapeutic compounds per se, like Vivagel®) and dendrimers as drug carriers (covalent conjugation or noncovalent encapsulation of drugs) were described. It is widely known that due to their outstanding physical and chemical properties, dendrimers afforded improvement of corresponding carried-drugs as dendrimer-drug complexes or conjugates (versus plain drug) such as biodistribution and pharmacokinetic behaviors. The purpose of this manuscript is to review the recent progresses of dendrimers as nanoscale drug delivery systems for the delivery of drugs using enteral, parenteral and topical routes. In particular, we focus our attention on the emerging and promising routes such as oral, transdermal, ocular and transmucosal routes using dendrimers as delivery systems.
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Chen Y, Wang M, Fang L. Biomaterials as novel penetration enhancers for transdermal and dermal drug delivery systems. Drug Deliv 2013; 20:199-209. [DOI: 10.3109/10717544.2013.801533] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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28
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Babu RP, O'Connor K, Seeram R. Current progress on bio-based polymers and their future trends. Prog Biomater 2013; 2:8. [PMID: 29470779 PMCID: PMC5151099 DOI: 10.1186/2194-0517-2-8] [Citation(s) in RCA: 340] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 02/21/2013] [Indexed: 01/19/2023] Open
Abstract
This article reviews the recent trends, developments, and future applications of bio-based polymers produced from renewable resources. Bio-based polymers are attracting increased attention due to environmental concerns and the realization that global petroleum resources are finite. Bio-based polymers not only replace existing polymers in a number of applications but also provide new combinations of properties for new applications. A range of bio-based polymers are presented in this review, focusing on general methods of production, properties, and commercial applications. The review examines the technological and future challenges discussed in bringing these materials to a wide range of applications, together with potential solutions, as well as discusses the major industry players who are bringing these materials to the market.
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Affiliation(s)
- Ramesh P Babu
- Centre for Research Adoptive Nanostructures and Nano Devices, Trinity College, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Kevin O'Connor
- School of Biomolecular and Biomedical Sciences, Centre for Synthesis and Chemical Biology, UCD Conway Institute, and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Ramakrishna Seeram
- NUSNNI, National University of Singapore, 2 Engineering Drive 3, Singapore, 117581 Singapore
- Institute of Materials Research and Engineering, Singapore, 117602 Singapore
- Jinan University, Guangzhou, China
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29
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Impallomeni G, Carnemolla GM, Puzzo G, Ballistreri A, Martino L, Scandola M. Characterization of biodegradable poly(3-hydroxybutyrate-co-butyleneadipate) copolymers obtained from their homopolymers by microwave-assisted transesterification. POLYMER 2013. [DOI: 10.1016/j.polymer.2012.11.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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30
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Mutalik S, Parekh H, Anissimov Y, Grice J, Roberts M. Iontophoresis-Mediated Transdermal Permeation of Peptide Dendrimers across Human Epidermis. Skin Pharmacol Physiol 2013; 26:127-38. [DOI: 10.1159/000348469] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 01/29/2013] [Indexed: 11/19/2022]
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31
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Borowska K, Wołowiec S, Głowniak K, Sieniawska E, Radej S. Transdermal delivery of 8-methoxypsoralene mediated by polyamidoamine dendrimer G2.5 and G3.5--in vitro and in vivo study. Int J Pharm 2012; 436:764-70. [PMID: 22884834 DOI: 10.1016/j.ijpharm.2012.07.067] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 07/27/2012] [Accepted: 07/29/2012] [Indexed: 11/19/2022]
Abstract
In this work, we have focused on 8-methoxypsoralene (8-MOP) complexed with G2.5 and G3.5 poly(amido amine) (PAMAM) dendrimers. The purpose of this study was to investigate the efficacy of half-generation G2.5 and G3.5 PAMAM dendrimers conjugated with 8-MOP for delivery of 8-MOP in vitro study through polivinyldifluoride membrane (PVDE) and prepared pig ear skin (PES) using Franz diffusion and in vivo study through the skin of experimental animals (hairless rat skin). The tissue concentration of 8-MOP in hairless rat skin was analyzed by high performance liquid chromatography (HPLC) after 1 and 2 h. Detailed distribution of 8-MOP in skin layers and cellular structures were analyzed using laser scanning microscopy (CLSM). In vitro and in vivo studies showed that half-generation G2.5 and G3.5 PAMAM dendrimers are able to facilitate transdermal delivery of 8-MOP. G2.5 PAMAM dendrimer appeared to be more effective 8-MOP penetration enhancer than G3.5 PAMAM dendrimer, but in vivo the differences are not statistically significant. The concept of using G2.5 and G3.5 PAMAM dendrimers as carriers seems to be a promising method for the delivery of 8-MOP for PUVA (psoralen-UV-A) therapy.
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Affiliation(s)
- Katarzyna Borowska
- Department of Cosmetology, University of Information Technology and Management In Rzeszów, 2 Sucharskiego Str., 35-325 Rzeszów, Poland.
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Borowska K, Wołowiec S, Rubaj A, Głowniak K, Sieniawska E, Radej S. Effect of polyamidoamine dendrimer G3 and G4 on skin permeation of 8-methoxypsoralene--in vivo study. Int J Pharm 2012; 426:280-283. [PMID: 22310461 DOI: 10.1016/j.ijpharm.2012.01.041] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Accepted: 01/19/2012] [Indexed: 11/18/2022]
Abstract
In the present study we have assessed the ability of (PAMAM) dendrimers G3 and G4 to facilitate transdermal delivery of 8-methoxypsoralen (8-MOP) in vivo. In vitro study using Franz diffusion cell revealed an enhanced transdermal flux for 8-MOP in complex with G3 and G4 dendrimer in relation to standard 8-MOP solution. In present study in vivo skin permeation potential of 8-MOP complex with G3 and G4 PAMAM dendrimer was assessed using confocal laser scanning microscopy (CLSM), which revealed an enhanced permeation of the 8-MOP to the deeper layers of the skin and significantly higher concentration in comparison with standard 8-MOP solution. Skin tissue 8-MOP concentration, evaluated by HPLC indicates that G3 and G4 PAMAM application significantly increase 8-MOP skin deposition in comparison with standard 8-MOP solutions after 1 and 2h. G4 appeared to be a more effective 8-MOP penetration enhancer than G3 PAMAM. Our results suggest the feasibility of G3 and G4 PAMAM dendrimers for transdermal delivery of 8-MOP resulting in better skin permeation and higher concentration of 8-MOP in epidermis and dermis of the drug that could help to improve effectiveness and safety of PUVA therapy.
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Affiliation(s)
- Katarzyna Borowska
- Department of Cosmetology, University of Information Technology and Management In Rzeszów, 2 Sucharskiego Str., 35-325 Rzeszów, Poland
| | - Stanisław Wołowiec
- Department of Cosmetology, University of Information Technology and Management In Rzeszów, 2 Sucharskiego Str., 35-325 Rzeszów, Poland.
| | - Andrzej Rubaj
- Department of Cardiology, Medical University of Lublin. 8 Jaczewskiego Str. 20-954 Lublin, Poland
| | - Kazimierz Głowniak
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin,1 Chodźki Str.,20-093 Lublin, Poland
| | - Elwira Sieniawska
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin,1 Chodźki Str.,20-093 Lublin, Poland
| | - Sebastian Radej
- Department of Human Anatomy, Medical University of Lublin, 4 Jaczewskiego Str., 20-090 Lublin, Poland
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Gajbhiye V, Kumar PV, Sharma A, Agarwal A, Asthana A, Jain NK. Dendrimeric nanoarchitectures mediated transdermal and oral delivery of bioactives. Indian J Pharm Sci 2011; 70:431-9. [PMID: 20046766 PMCID: PMC2792561 DOI: 10.4103/0250-474x.44589] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2007] [Revised: 03/08/2008] [Accepted: 07/10/2008] [Indexed: 02/05/2023] Open
Abstract
Transdermal route is an evolving panorama in novel drug deliverance and with oral route they proffer immense potential. Most recently there is hastening in approaches for delivering bioactives via these routes, amongst them revolution has been made by dendrimers. Encapsulation and conjugation of bioactives with these virus sized robots have shown immense employment for delivery of hydrophobic and labile remedies. Transport of these nano-cruises from corner to corner of skin and through epithelial hurdle of gastrointestinal tract depends upon dendrimer characteristics. An improved thoughtful of these characteristics is an obligation for their use in these rambling fields. These characteristics embrace generation size, molecular weight, surface charge, incubation time and concentration. This context demarcates the imperative role of dendrimers in transdermal and oral drug delivery. This review also highlights concerning mechanism of convey of nanoarrays via epithelial hurdle of GIT.
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Affiliation(s)
- V Gajbhiye
- Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences, Dr. Hari Singh Gour University, Sagar-470 003, India
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Dong Z, Hamid KA, Gao Y, Lin Y, Katsumi H, Sakane T, Yamamoto A. Polyamidoamine Dendrimers Can Improve the Pulmonary Absorption of Insulin and Calcitonin in Rats. J Pharm Sci 2011; 100:1866-78. [DOI: 10.1002/jps.22428] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Revised: 10/05/2010] [Accepted: 11/09/2010] [Indexed: 11/06/2022]
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35
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Mutalik S, Nayak UY, Kalra R, Kumar A, Kulkarni RV, Parekh HS. Sonophoresis-mediated permeation and retention of peptide dendrimers across human epidermis. Skin Res Technol 2011; 18:101-7. [DOI: 10.1111/j.1600-0846.2011.00539.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Sustained release of PI3K inhibitor from PHA nanoparticles and in vitro growth inhibition of cancer cell lines. Appl Microbiol Biotechnol 2011; 89:1423-33. [DOI: 10.1007/s00253-011-3101-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 12/20/2010] [Accepted: 12/21/2010] [Indexed: 12/19/2022]
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37
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Bang SH, Kim TH, Lee HY, Shin US, Kim HW. Nanofibrous-structured biopolymer scaffolds obtained by a phase separation with camphene and initial cellular events. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03108a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Abramovits W, Granowski P, Arrazola P. Applications of nanomedicine in dermatology: use of nanoparticles in various therapies and imaging. J Cosmet Dermatol 2010; 9:154-9. [DOI: 10.1111/j.1473-2165.2010.00492.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Dong Z, Katsumi H, Sakane T, Yamamoto A. Effects of polyamidoamine (PAMAM) dendrimers on the nasal absorption of poorly absorbable drugs in rats. Int J Pharm 2010; 393:244-52. [PMID: 20417700 DOI: 10.1016/j.ijpharm.2010.04.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 04/12/2010] [Accepted: 04/19/2010] [Indexed: 11/25/2022]
Abstract
The absorption enhancing effects of polyamidoamine (PAMAM) dendrimers with various concentrations and generations on the nasal absorption of fluorescein isothiocyanate-labeled dextran with an average molecular weight of 4400 (FD4) were initially studied in rats. PAMAM dendrimers with different generations improved the nasal absorption of FD4 and the absorption enhancing effects of PAMAM dendrimers were generation dependent. The rank order of absorption enhancement effects of PAMAM dendrimers was G3>G2>G1>G0. The absorption enhancing effects of PAMAM dendrimers were shown to be concentration dependent for the same generation of PAMAM dendrimers. The nasal membrane toxicity of these PAMAM dendrimers was evaluated by measuring the release of protein and lactate dehydrogenase (LDH) in nasal cavity lavage fluid. PAMAM dendrimers with higher generations and concentrations caused some membrane damage to the nasal tissues, but it was much less than the damage caused by sodium deoxycholate as a positive control. Based on the consideration between the efficacy and safety of PAMAM dendrimers, 1% (w/v) G3 dendrimer with high effectiveness and low toxicity was considered to be a best absorption enhancer for improving the nasal absorption of FD4. 1% (w/v) G3 dendrimer also improved the nasal absorption of macromolecular compounds and drugs including FD10, FD70, insulin and calcitonin. Finally, we measured the zeta potentials of drug solutions with or without PAMAM dendrimers to elucidate their absorption enhancing mechanisms. The zeta potentials of model drug solutions changed to positive by the addition of 1% (w/v) G3 dendrimer. This changing might trigger the absorption enhancing effects of PAMAM dendrimers on the nasal absorption of FDs, insulin and calcitonin, as the first step of mechanisms. In conclusion, 1% (w/v) G3 dendrimer is a promising absorption enhancer for improving the nasal absorption of FDs, insulin and calcitonin without any membrane damage to the nasal tissues.
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Affiliation(s)
- Zhengqi Dong
- Department of Biopharmaceutics, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
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40
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Xiong YC, Yao YC, Zhan XY, Chen GQ. Application of polyhydroxyalkanoates nanoparticles as intracellular sustained drug-release vectors. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2010; 21:127-40. [PMID: 20040158 DOI: 10.1163/156856209x410283] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polyhydroxybutyrate (PHB), co-polyesters of 3-hydroxybutyrate and 3-hydroxyhexanoate (PHBHHx), and polylactic acid (PLA) were used to prepare nanoparticles with average sizes of 160, 250 and 150 nm, respectively. A lipid-soluble colorant, rhodamine B isothiocyanate (RBITC), was employed to study drug-release behaviors from these nanoparticles. A high RBITC drug-loading efficiency of over 75% was achieved with all PHA nanoparticles prepared. Macrophage endocytosis led to an intracellular RBITC drug sustained release over a period of at least 20 days for PHB and PHBHHx nanoparticles, while PLA nanoparticles and free drug lasted only 15 days and a week, respectively. Polymer properties and particle sizes showed little effect on drug-release behavior. This study showed for the first time that PHB and PHBHHx can be used effectively to achieve intracellular controlled drug releases.
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Affiliation(s)
- Yu-Cui Xiong
- Multidisciplinary Research Center, Shantou University, Shantou 515063, Guangdong, P. R. China
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Im JS, Bai BC, Lee YS. The effect of carbon nanotubes on drug delivery in an electro-sensitive transdermal drug delivery system. Biomaterials 2009; 31:1414-9. [PMID: 19931904 DOI: 10.1016/j.biomaterials.2009.11.004] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Accepted: 11/02/2009] [Indexed: 11/19/2022]
Abstract
An electro-sensitive transdermal drug delivery system was prepared by the electrospinning method to control drug release. A semi-interpenetrating polymer network was prepared as the matrix with polyethylene oxide and pentaerythritol triacrylate polymers. Multi-walled carbon nanotubes were used as an additive to increase the electrical sensitivity. The release experiment was carried out under different electric voltage conditions. Carbon nanotubes were observed in the middle of the electrospun fibers by SEM and TEM. The amount of released drug was effectively increased with higher applied electric voltages. These results were attributed to the excellent electrical conductivity of the carbon additive. The suggested mechanism of drug release involves polyethylene oxide of the semi-interpenetrating polymer network being dissolved under the effects of carbon nanotubes, thereby releasing the drug. The effects of the electro-sensitive transdermal drug delivery system were enhanced by the carbon nanotubes.
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Affiliation(s)
- Ji S Im
- Department of Fine Chemical Engineering and Applied Chemistry, BK21-E(2)M, Chungnam National University, Daejeon 305-764, Republic of Korea
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Mutalik S, Hewavitharana A, Shaw P, Anissimov Y, Roberts M, Parekh H. Development and validation of a reversed-phase high-performance liquid chromatographic method for quantification of peptide dendrimers in human skin permeation experiments. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:3556-62. [DOI: 10.1016/j.jchromb.2009.08.039] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2009] [Revised: 07/08/2009] [Accepted: 08/25/2009] [Indexed: 10/20/2022]
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43
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Wu Q, Wang Y, Chen GQ. Medical Application of Microbial Biopolyesters Polyhydroxyalkanoates. ACTA ACUST UNITED AC 2009; 37:1-12. [DOI: 10.1080/10731190802664429] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Venuganti VVK, Perumal OP. Poly(amidoamine) dendrimers as skin penetration enhancers: Influence of charge, generation, and concentration. J Pharm Sci 2009; 98:2345-56. [DOI: 10.1002/jps.21603] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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Jain NK, Gupta U. Application of dendrimer–drug complexation in the enhancement of drug solubility and bioavailability. Expert Opin Drug Metab Toxicol 2008; 4:1035-52. [DOI: 10.1517/17425255.4.8.1035] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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46
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Cheng Y, Xu Z, Ma M, Xu T. Dendrimers as Drug Carriers: Applications in Different Routes of Drug Administration. J Pharm Sci 2008; 97:123-43. [PMID: 17721949 DOI: 10.1002/jps.21079] [Citation(s) in RCA: 249] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Dendrimers have successfully proved themselves as useful additives in different routes of drug administration because they can render drugs greater water-solubility, bioavailability, and biocompatibility. This review demonstrated the potential of dendrimers to be applied in these detailed routes with particular reference to intravenous, oral, transdermal, and ocular delivery systems. As a necessary introduction, the structures, synthesis, and properties of dendrimers were presented. Furthermore, the interaction mechanisms between dendrimers and drug molecules, including simple encapsulation, electrostatic interaction, and covalent conjugation, were elaborated.
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Affiliation(s)
- Yiyun Cheng
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
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47
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Gupta U, Agashe HB, Asthana A, Jain NK. A review of in vitro–in vivo investigations on dendrimers: the novel nanoscopic drug carriers. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2006; 2:66-73. [PMID: 17292117 DOI: 10.1016/j.nano.2006.04.002] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2005] [Accepted: 04/07/2006] [Indexed: 11/21/2022]
Abstract
Dendrimers have emerged as one of the most interesting themes for researchers as a result of their unique architecture and macromolecular characteristics. Several groups are involved in exploring their potential as versatile carriers in drug delivery. The use of dendrimers in drug delivery has been reviewed extensively. The increasing relevance of the potential of dendrimers in drug delivery emphasizes the need to explore the routes by which they can be administered. The present review focuses on dendrimer-mediated drug delivery based on various routes of administration, a topic that has received little attention in the available literature. With this focus in mind, we present a comprehensive exploration of the recent advances in the investigational aspects of these nanoscopic polymeric devices. Also included are some in vitro studies that present data suggestive of their possible application in different routes of administration.
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Affiliation(s)
- Umesh Gupta
- Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences, Dr. Hari Singh Gour University, Sagar 470 003, India
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Abstract
Polymers occupy a major portion of materials used for controlled release formulations and drug-targeting systems because this class of materials presents seemingly endless diversity in topology and chemistry. This is a crucial advantage over other classes of materials to meet the ever-increasing requirements of new designs of drug delivery formulations. The polymer architecture (topology) describes the shape of a single polymer molecule. Every natural, seminatural, and synthetic polymer falls into one of categorized architectures: linear, graft, branched, cross-linked, block, star-shaped, and dendron/dendrimer topology. Although this topic spans a truly broad area in polymer science, this review introduces polymer architectures along with brief synthetic approaches for pharmaceutical scientists who are not familiar with polymer science, summarizes the characteristic properties of each architecture useful for drug delivery applications, and covers recent advances in drug delivery relevant to polymer architecture.
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Affiliation(s)
- Li Yan Qiu
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, 421 Wakara Way, Suite 315, Salt Lake City, Utah 84108, USA
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Devarakonda B, Li N, de Villiers MM. Effect of polyamidoamine (PAMAM) dendrimers on the in vitro release of water-insoluble nifedipine from aqueous gels. AAPS PharmSciTech 2005; 6:E504-12. [PMID: 16354011 PMCID: PMC2750397 DOI: 10.1208/pt060363] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The objective of this study was to determine the effect of ethylenediamine core PAMAM dendrimers on the release of nifedipine suspended in aqueous gels and to correlate release to the increase in solubility afforded by the dendrimers. Drug release from aqueous 5% HPMC gels containing nifedipine (2% wt/vol) through 0.2-microm membranes was measured using Enhancer cells and 50% ethanolic solution as the receptor medium. The release from gels containing PAMAM G-3 and G-5 (0.25%-1% wt/vol) was compared with gels containing the cosolvent isopropyl alcohol (10%-80% vol/vol). PAMAM dendrimers significantly increased the solubility of nifedipine. This caused a significant increase in the release rate of nifedipine from the gel suspensions. The increase in drug release depended on the concentration and generation size of the dendrimers added. For higher generations (G-5) lower concentrations were needed to obtain equivalent increases in release. Although the increase in solubility and release was not as high as from gels containing high concentrations of the cosolvent isopropyl alcohol, the dendrimers prevented the recrystallization of the drug that was observed when the gels containing isopropyl alcohol were left open.
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Affiliation(s)
- Bharathi Devarakonda
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, The University of Louisiana at Monroe, 71209 Monroe, LA
| | - Ning Li
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, The University of Louisiana at Monroe, 71209 Monroe, LA
| | - Melgardt M. de Villiers
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, 53705 Madison, WI
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Wang Z, Itoh Y, Hosaka Y, Kobayashi I, Nakano Y, Maeda I, Umeda F, Yamakawa J, Nishimine M, Suenobu T, Fukuzumi S, Kawase M, Yagi K. Mechanism of enhancement effect of dendrimer on transdermal drug permeation through polyhydroxyalkanoate matrix. J Biosci Bioeng 2003; 96:537-40. [PMID: 16233570 DOI: 10.1016/s1389-1723(04)70146-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2002] [Accepted: 09/02/2003] [Indexed: 11/29/2022]
Abstract
The possible application of polyhydroxyalkanoate (PHA) in transdermal drug delivery systems (TDDSs) for tamsulosin was previously reported. PHAs containing the drugs, ketoprofen, clonidine and tamsulosin showed good adhesiveness to the skin model used, that is, shed snake skin, and dispersed well all model drugs tested. The model drugs hardly permeated through snake skin in solution form. However, these drugs permeated well through snake skin from the PHA matrix. It was previously reported that the addition of a dendrimer, a polymeric permeation enhancer, is effective for the TDDS for tamsulosin to establish an effective clinical TDDS. The effect of dendrimer addition was examined in TDDSs for ketoprofen and clonidine. The dendrimer added did not show an enhancement effect on the TDDSs for the two drugs. To investigate the mechanism of the enhancement effect of a dendrimer on the tamsulosin TDDS, X-ray analyses were performed. With dendrimer addition, drug crystallization in PHA was promoted. The crystal in PHA had highly ordered and changed its space group. These findings are very important for exploiting high-performance PHA-based TDDSs.
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Affiliation(s)
- Zhixiong Wang
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
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