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Samanta R, Nayak S, Das B, Nayak AK. Chitosan-carboxymethyl tamarind gum in situ polyelectrolyte complex-based floating capsules of ofloxacin: In vitro-in vivo studies. Int J Biol Macromol 2023; 253:127507. [PMID: 37865378 DOI: 10.1016/j.ijbiomac.2023.127507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/03/2023] [Accepted: 10/12/2023] [Indexed: 10/23/2023]
Abstract
The current research attempted to design and evaluate sustained stomach-specific ofloxacin delivery by single-unit hydrodynamically balanced system (HBS)-based floating capsules. These HBS-based floating capsules of ofloxacin were prepared using two oppositely ionic polymers, namely cationic-natured low molecular mass chitosan (LMMCH) and anionic-natured carboxymethyl tamarind gum (CMTG). FTIR results indicated the in situ formation of a polyelectrolyte complex in-between two oppositely charged polymers (i.e., in-between -NH2 group of the cationic natured LMMCH and -COOH groups of the anionic natured CMTG) and the nonexistence of any drug-polymer interaction(s) within these formulated ofloxacin HBS capsules. All these LMMCH-CMTG ofloxacin HBS capsules exhibited drug content uniformity, a sustained in vitro drug-releasing profile over 10 h. The ofloxacin HBS capsules (formulated with 75 mg LMMCH and 25 mg CMTG), which was selected as best formulation (for further studies), exhibited excellent in vitro floatation behaviour in SGF (pH 1.2) over 6 h without any floating lag-time, whereas the same formulation containing barium sulfate (100 mg) instead of drug demonstrated prolonged stomach-specific gastroretention in an in vivo X-ray imaging study using rabbits. Therefore, these types of HBS floating capsules can be useful for stomach-specific gastroretentive floating delivery of other drugs.
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Affiliation(s)
- Radheshyam Samanta
- Department of Pharmaceutics, Seemanta Institute of Pharmaceutical Sciences, Jharpokharia, Mayurbhanj 757086, Odisha, India; Department of Pharmaceutics, Kalinga Institute of Pharmaceutical Sciences, Seragarh 756040, Odisha, India
| | - Sukanta Nayak
- Department of Pharmaceutics, Seemanta Institute of Pharmaceutical Sciences, Jharpokharia, Mayurbhanj 757086, Odisha, India
| | - Biswarup Das
- Department of Pharmaceutics, Seemanta Institute of Pharmaceutical Sciences, Jharpokharia, Mayurbhanj 757086, Odisha, India
| | - Amit Kumar Nayak
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India.
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Fazal T, Murtaza BN, Shah M, Iqbal S, Rehman MU, Jaber F, Dera AA, Awwad NS, Ibrahium HA. Recent developments in natural biopolymer based drug delivery systems. RSC Adv 2023; 13:23087-23121. [PMID: 37529365 PMCID: PMC10388836 DOI: 10.1039/d3ra03369d] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 07/24/2023] [Indexed: 08/03/2023] Open
Abstract
Targeted delivery of drug molecules to diseased sites is a great challenge in pharmaceutical and biomedical sciences. Fabrication of drug delivery systems (DDS) to target and/or diagnose sick cells is an effective means to achieve good therapeutic results along with a minimal toxicological impact on healthy cells. Biopolymers are becoming an important class of materials owing to their biodegradability, good compatibility, non-toxicity, non-immunogenicity, and long blood circulation time and high drug loading ratio for both macros as well as micro-sized drug molecules. This review summarizes the recent trends in biopolymer-based DDS, forecasting their broad future clinical applications. Cellulose chitosan, starch, silk fibroins, collagen, albumin, gelatin, alginate, agar, proteins and peptides have shown potential applications in DDS. A range of synthetic techniques have been reported to design the DDS and are discussed in the current study which is being successfully employed in ocular, dental, transdermal and intranasal delivery systems. Different formulations of DDS are also overviewed in this review article along with synthesis techniques employed for designing the DDS. The possibility of these biopolymer applications points to a new route for creating unique DDS with enhanced therapeutic qualities for scaling up creative formulations up to the clinical level.
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Affiliation(s)
- Tanzeela Fazal
- Department of Chemistry, Abbottabad University of Science and Technology Pakistan
| | - Bibi Nazia Murtaza
- Department of Zoology, Abbottabad University of Science and Technology Pakistan
| | - Mazloom Shah
- Department of Chemistry, Faculty of Science, Grand Asian University Sialkot Pakistan
| | - Shahid Iqbal
- Department of Chemistry, School of Natural Sciences (SNS), National University of Science and Technology (NUST) H-12 Islamabad 46000 Pakistan
| | - Mujaddad-Ur Rehman
- Department of Microbiology, Abbottabad University of Science & Technology Pakistan
| | - Fadi Jaber
- Department of Biomedical Engineering, Ajman University Ajman UAE
- Center of Medical and Bio-Allied Health Sciences Research, Ajman University Ajman UAE
| | - Ayed A Dera
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University Abha Saudi Arabia
| | - Nasser S Awwad
- Chemistry Department, Faculty of Science, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia
| | - Hala A Ibrahium
- Biology Department, Faculty of Science, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia
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3
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Guru PR, Kar RK, Nayak AK, Mohapatra S. A comprehensive review on pharmaceutical uses of plant-derived biopolysaccharides. Int J Biol Macromol 2023; 233:123454. [PMID: 36709807 DOI: 10.1016/j.ijbiomac.2023.123454] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023]
Abstract
Biopolysaccharides extracted from plants are mainly photosynthetic byproducts found in leaves, pods, stems, fruits, grains, seeds, corms, rhizomes, roots, bark exudates, and other plant parts. Recently, these plant-derived biopolysaccharides have received a great deal of attention as pharmaceutical excipients in a range of different dosage forms because of several key advantages, such as widespread accessibility from nature as plant-based sources are readily available, sustainable production, availability of easy and cost-effective extraction methodologies, aqueous solubility, swelling capability in the aqueous medium, non-toxicity, biodegradability, etc. The current review presents a comprehensive overview of the uses of plant-derived biopolysaccharides as effective pharmaceutical excipients in the formulations of different kinds of dosage forms, for example gels, pastes, films, emulsions, suspensions, capsules, tablets, nanoparticles, microparticles, beads, buccal formulations, transdermal formulations, ocular formulations, nasal formulations, etc.
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Affiliation(s)
- Pravat Ranjan Guru
- Department of Pharmaceutics, Dadhichi College of Pharmacy, Vidya Vihar, Sundargram, Cuttack 754002, Odisha, India
| | - Rajat Kumar Kar
- Department of Pharmaceutics, Dadhichi College of Pharmacy, Vidya Vihar, Sundargram, Cuttack 754002, Odisha, India
| | - Amit Kumar Nayak
- Department of Pharmaceutics, Seemanta Institute of Pharmaceutical Sciences, Jharpokharia, Mayurbhanj 757086, Odisha, India.
| | - Snehamayee Mohapatra
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India.
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4
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Froelich A, Jakubowska E, Jadach B, Gadziński P, Osmałek T. Natural Gums in Drug-Loaded Micro- and Nanogels. Pharmaceutics 2023; 15:pharmaceutics15030759. [PMID: 36986620 PMCID: PMC10059891 DOI: 10.3390/pharmaceutics15030759] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
Gums are polysaccharide compounds obtained from natural sources, such as plants, algae and bacteria. Because of their excellent biocompatibility and biodegradability, as well as their ability to swell and their sensitivity to degradation by the colon microbiome, they are regarded as interesting potential drug carriers. In order to obtain properties differing from the original compounds, blends with other polymers and chemical modifications are usually applied. Gums and gum-derived compounds can be applied in the form of macroscopic hydrogels or can be formulated into particulate systems that can deliver the drugs via different administration routes. In this review, we present and summarize the most recent studies regarding micro- and nanoparticles obtained with the use of gums extensively investigated in pharmaceutical technology, their derivatives and blends with other polymers. This review focuses on the most important aspects of micro- and nanoparticulate systems formulation and their application as drug carriers, as well as the challenges related to these formulations.
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Rajput K, Tawade S, Nangare S, Shirsath N, Bari S, Zawar L. Formulation, optimization, and in-vitro-ex-vivo evaluation of dual-crosslinked zinc pectinate-neem gum-interpenetrating polymer network mediated lansoprazole loaded floating microbeads. Int J Biol Macromol 2022; 222:915-926. [PMID: 36181884 DOI: 10.1016/j.ijbiomac.2022.09.216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/15/2022] [Accepted: 09/24/2022] [Indexed: 11/05/2022]
Abstract
Low methoxy pectin (LM pectin) suffers from burst release owing to its high swellability and solubility in water. Consequently, in ways to design an ideal drug delivery system, these obstacles must be surmounted. Therefore, the work aimed to design dual crosslinked LM pectin -neem gum (NG) mediated interpenetrating polymer network (IPN) floating mucoadhesive microbeads for lansoprazole (LNZ) gastro-retentive delivery. In short, LNZ-loaded floating microbeads were achieved by using the ionic gelation method wherein zinc acetate was preferred as a crosslinking agent. The optimization of IPN microbeads was performed employing a 32-factorial design wherein concentration of pectin and NG was considered as independent factors whereas dependant factors are entrapment efficiency and drug release. Importantly, carboxylic functionality of low methoxy (LM) pectin and hydroxylic functionality NG cross-linked with Zn+2 forms a 3D network. Diffractogram and thermogram revealed that conversion of drug from crystalline to amorphous form because of entrapment of drug within polymeric network. Anticipated floating microbeads showed that polymer concentration had considerable effect on drug encapsulation efficiency and drug release. Briefly, optimizing floating microbeads (Batch B:5) showed maximum drug entrapment (87.47 %) with a delayed drug release (69.20 %, at 8 h) due to formation of strong IPN. Moreover, it showed good mucoadhesive aptitude with goat stomach mucosa because of entanglement between gum and mucus layer. In addition, use of calcium silicate assists to modulate floating profile of IPN microbeads. Therefore, designing dual crosslinked zinc-pectinate-NG mediated IPN floating mucoadhesive microbeads will offer a new substitute for floating delivery.
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Affiliation(s)
- Kirti Rajput
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra state, India
| | - Shraddha Tawade
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra state, India
| | - Sopan Nangare
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra state, India
| | - Nitin Shirsath
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra state, India
| | - Sanjaykumar Bari
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra state, India
| | - Laxmikant Zawar
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra state, India.
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6
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Patel J, Moorthy NSHN, Maiti S. Ascendancy of
pH
‐irresponsive Moi gum in the design of modified xanthan gum semi‐interpenetrating network hydrogels for monitoring diabetes. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jwala Patel
- Department of Pharmacy Indira Gandhi National Tribal University Amarkantak Madhya Pradesh India
| | | | - Sabyasachi Maiti
- Department of Pharmacy Indira Gandhi National Tribal University Amarkantak Madhya Pradesh India
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7
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Recent development in the medical and industrial applications of gum karaya: a review. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04227-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Drug delivery using interpenetrating polymeric networks of natural polymers: A recent update. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102915] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Hadke J, Khan S. Preparation of Sterculia foetida-pullulan-Based Semi-interpenetrating Polymer Network Gastroretentive Microspheres of Amoxicillin Trihydrate and Optimization by Response Surface Methodology. Turk J Pharm Sci 2021; 18:388-397. [PMID: 34496478 DOI: 10.4274/tjps.galenos.2020.33341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Objectives In this study, a novel Sterculia foetida and pullulan-based semi-interpenetrating polymer network gastroretentive microsphere formulation was prepared using the emulsion crosslinking method and optimized by central composite design. Materials and Methods The effects of the amounts of glutaraldehyde, S. foetida, and pullulan on the percent drug entrapment efficiency (EE), percent mucoadhesion at 12 h, and percent in vitro drug release at 12 h were optimized. The microspheres were characterized using scanning electron microscopy, fourier transform infrared spectroscopy, and differential scanning calorimetry. Results The formulation containing 4% v/v glutaraldehyde, 8.28% w/v pullulan, and 2.14% w/v S. foetida had 88.75±1.18% EE, 80.43±1.2% drug release at 12 h, and 81.73±1.50% mucoadhesion at 12 h, which was considered optimum and was used in an in vivo radiographic study. Conclusion Semi-interpenetrating polymer network microspheres loaded with amoxicillin trihydrate were successfully prepared using S. foetida and pullulan. The prolonged retention of microspheres in the stomach with sustained drug release could effectively act against Helicobacter pylori reservoirs in the stomach and improve the therapeutic effect of amoxicillin trihydrate against H. pylori.
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Affiliation(s)
- Jayshri Hadke
- Institute of Pharmaceutical Education and Research, Department of Pharmaceutics, Wardha, India
| | - Shagufta Khan
- Institute of Pharmaceutical Education and Research, Department of Pharmaceutics, Wardha, India
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10
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Bostanudin MF, Salam A, Mahmood A, Arafat M, Kaharudin AN, Sahudin S, Mat Lazim A, Azfaralariff A. Formulation and In-Vitro Characterisation of Cross-Linked Amphiphilic Guar Gum Nanocarriers for Percutaneous Delivery of Arbutin. J Pharm Sci 2021; 110:3907-3918. [PMID: 34403653 DOI: 10.1016/j.xphs.2021.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
Nano-colloidal systems formulated from amphiphilically-modified polysaccharides (degree of modification 16.6%) are focus of prominent study due to their potential to augment active penetration across the skin. Here we report the synthesis of amphiphilically-modified guar gum (GBE-GG) prepared by grafting with glycidol butyl ether (GBE), which were subsequently formed into nanocarriers and loaded with α-arbutin (22.3% loading). The monodispersed and close-to-spherical nanocarriers (size range 239-297 nm) formed via cross-linking were adequately stable mainly at low temperature (4 °C) under physiological pH condition. α-arbutin was released from GBE-GG NPs in a more sustained manner and the release profiles can be accurately represented by the 1st order kinetic model. In-vitro interactions on immortalised human keratinocytes (HaCaT) cells revealed an increase in biological membrane permeability as well as the absence of cellular toxicity at application pertinent concentrations. No substantial haemolytic activity appeared and flow cytometry analysis revealed effective cellular uptake, suggesting their potential as promising nanocarriers for percutaneous delivery that warrants further comprehensive research.
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Affiliation(s)
| | - Aisha Salam
- College of Pharmacy, Al Ain University, Abu Dhabi 112612, United Arab Emirates
| | - Arshad Mahmood
- College of Pharmacy, Al Ain University, Abu Dhabi 112612, United Arab Emirates
| | - Mosab Arafat
- College of Pharmacy, Al Ain University, Abu Dhabi 112612, United Arab Emirates
| | - Amirah N Kaharudin
- Faculty of Pharmacy, University of Cyberjaya, 63000 Cyberjaya, Selangor, Malaysia
| | - Shariza Sahudin
- Department of Pharmaceutics, Faculty of Pharmacy, Universiti Teknologi Mara, Puncak Alam Campus, 42300 Selangor, Malaysia
| | - Azwan Mat Lazim
- Department of Chemical Sciences, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Ahmad Azfaralariff
- Department of Chemical Sciences, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
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Rehman F, Khan IU, Khalid SH, Asghar S, Irfan M, Khalid I, Rasul A, Mahmood H, Yousaf AM, Shahzad Y, Mudassar M, Mohsin NUA. Optimization, in vitro release and toxicity evaluation of novel pH sensitive itaconic acid-g-poly(acrylamide)/sterculia gum semi-interpenetrating networks. Daru 2021; 29:171-184. [PMID: 33899162 PMCID: PMC8149496 DOI: 10.1007/s40199-021-00395-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 04/05/2021] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND In recent era, pH sensitive polymeric carriers that combines the materials engineering and medicine is gaining researcher's attention as they maximizes drug concentration at site of absorption and reduces side effects for e.g. orally administered cetirizine HCl (CTZ HCl) upsets the stomach and furthermore shows high intestinal absorption. Thus, development of pH sensitive hydrogels with sufficient mechanical strength will be good candidate to address this issue. METHODS Here, we developed pH sensitive itaconic acid-g-poly(acrylamide)/sterculia gum (IA-g-poly(AM)/sterculia gum) semi-interpenetrating network (semi-IPN) by free radical polymerization technique for intestinal delivery of CTZ HCL. RESULTS Optimized formulation (I5) with 6% w/w IA showed negligible swelling at pH 1.2, and maximum swelling at pH 7.4. Solid state characterization of optimized formulation showed successful development of semi-IPN structure and incorporation of drug without any noticeable drug-carrier interaction. In vitro release study showed biphasic pH dependent release of CTZ HCl, where initial burst release was observed at acidic pH followed by sustained release at basic pH. Acute oral toxicity and histopathological studies confirmed the non-toxic nature of IA-g-poly(AM)/sterculia gum. CONCLUSION Conclusively, developed biocompatible semi-IPN hydrogels with sufficient pH sensitivity and mechanical strength could serve as a potential carrier for intestinal delivery of CTZ HCL to maximize its absorption and reduce side effects.
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Affiliation(s)
- Fauzia Rehman
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
- School of Pharmacy, The University of Faisalabad, Faisalabad, Faisalabad, Pakistan
| | - Ikram Ullah Khan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan.
| | - Syed Haroon Khalid
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Sajid Asghar
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Irfan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ikrima Khalid
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Akhtar Rasul
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Huma Mahmood
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Abid Mehmood Yousaf
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Yasser Shahzad
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Muhammad Mudassar
- Pathology Department, Batterjee Medical College, Jeddah, Saudi Arabia
| | - Noor Ul Amin Mohsin
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
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Dey M, Ghosh B, Giri TK. Enhanced intestinal stability and pH sensitive release of quercetin in GIT through gellan gum hydrogels. Colloids Surf B Biointerfaces 2020; 196:111341. [DOI: 10.1016/j.colsurfb.2020.111341] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/16/2020] [Accepted: 08/13/2020] [Indexed: 11/17/2022]
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13
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Bülbül EÖ, Karantas ID, Okur ME, Siafaka PI, Okur NÜ. Schizophrenia; A Review on Promising Drug Delivery Systems. Curr Pharm Des 2020; 26:3871-3883. [DOI: 10.2174/1381612826666200523173102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 04/15/2020] [Indexed: 12/30/2022]
Abstract
Background:
Schizophrenia belongs to mental illnesses affecting 1% of the worldwide population. Its
therapy is still unmet; thus, researchers aimed to develop new pharmacological molecules which can improve its
management.
Methods:
Moreover, the current typical and atypical antipsychotics should be formulated in more efficacious
systems that can deliver the drug in the brain with as few side effects as possible. Further, the development of
long-acting efficient drug delivery systems could be significant in minimizing frequent dosing which is nonpreferred
to schizophrenics.
Results:
Herein, authors focused on current developments of antipsychotic medications used in schizophrenia
management. Various studies, which include the use of first and second-generation antipsychotics, were analyzed
according to their efficacy. In fact, in this review, oral, injectable, transdermal and intranasal formulations entrapped
antipsychotics are presented to be valuable guidance for scientists to formulate more effective drug delivery
systems for schizophrenic patients.
Conclusions:
This review aimed to assist researchers working on schizophrenia management by summarizing
current medications and newly synthesized drug delivery systems recently found in the literature.
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Affiliation(s)
- Ece Ö. Bülbül
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, Istanbul, Turkey
| | - Ioannis D. Karantas
- Hippokration General Hospital, 2nd Clinic of Internal Medicine, Thessaloniki, Greece
| | - Mehmet E. Okur
- Department of Pharmacology, Faculty of Pharmacy, University of Health Sciences, Istanbul, Turkey
| | - Panoraia I. Siafaka
- Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Neslihan Ü. Okur
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Health Sciences, Istanbul, Turkey
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14
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Novel interpenetrating polymeric network based microbeads for delivery of poorly water soluble drug. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02077-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Encapsulation of Black Seed Oil in Alginate Beads as a pH-Sensitive Carrier for Intestine-Targeted Drug Delivery: In Vitro, In Vivo and Ex Vivo Study. Pharmaceutics 2020; 12:pharmaceutics12030219. [PMID: 32131539 PMCID: PMC7150899 DOI: 10.3390/pharmaceutics12030219] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 12/13/2022] Open
Abstract
Black seed oil (BSO) has been used for various therapeutic purposes around the world since ancient eras. It is one of the most prominent oils used in nutraceutical formulations and daily consumption for its significant therapeutic value is common phenomena. The main aim of this study was to develop alginate-BSO beads as a controlled release system designed to control drug release in the gastrointestinal tract (GIT). Electrospray technology facilitates formulation of small and uniform beads with higher diffusion and swelling rates resulting in process performance improvement. The effect of different formulation and process variables was evaluated on the internal and external bead morphology, size, shape, encapsulation efficiency, swelling rate, in vitro drug release, release mechanism, ex vivo mucoadhesive strength and gastrointestinal tract qualitative and quantitative distribution. All the formulated beads showed small sizes of 0.58 ± 0.01 mm (F8) and spherical shape of 0.03 ± 0.00 mm. The coefficient of weight variation (%) ranged from 1.37 (F8) to 3.93 (F5) ng. All formulations (F1–F9) were studied in vitro for release characteristics and swelling behaviour, then the release data were fitted to various equations to determine the exponent (ns), swelling kinetic constant (ks), swelling rate (%/h), correlation coefficient (r2) and release kinetic mechanism. The oil encapsulation efficiency was almost complete at 90.13% ± 0.93% in dried beads. The maximum bead swelling rate showed 982.23 (F8, r2 = 0.996) in pH 6.8 and the drug release exceeded 90% in simulated gastrointestinal fluid (pH 6.8). Moreover, the beads were well distributed throughout various parts of the intestine. This designed formulation could possibly be advantageous in terms of increased bioavailability and targeted drug delivery to the intestine region and thus may find applications in some diseases like irritable bowel syndrome.
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16
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Liu W, Wang S, Lu W, Cheng Z, Jiang N. Sustained Release Ziprasidone Microparticles Prepared by Spray Drying with Soluplus® and Ethyl Cellulose to Eliminate Food Effect and Enhance Bioavailability. AAPS PharmSciTech 2019; 21:27. [PMID: 31858315 DOI: 10.1208/s12249-019-1592-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 11/25/2019] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study was to develop and evaluate a new formulation of ziprasidone (ZIP) for improved fasted state absorption and sustained drug release. ZIP solid dispersions were produced via spray drying using Soluplus®, an amphiphilic polymer, as the solubility enhancer. Physicochemical analysis proved that ZIP presented at amorphous state in the spray-dried microparticles and the dissolution rate of ZIP from the Soluplus®-ZIP composite microparticles was significantly increased compared with that of the physical mixtures. Commonly used encapsulation materials including Eudragit® RL, Eudragit® S100 and Ethyl Cellulose were incorporated into the solid dispersions to regulate the drug release kinetics. The formulation containing ethyl cellulose provided the most sustained release behaviors. Pharmacokinetic studies in beagle dogs confirmed that there was no significant difference in oral bioavailability of the microparticles under fasted and fed states, and a prolonged Tmax value was simultaneously achieved compared with the commercial ZIP capsules.
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17
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Optimization and in vitro evaluation of ziprasidone nanosuspensions produced by a top-down approach. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.04.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Bera H, Ang SR, Chiong SW, Chan CH, Abbasi YF, Law LP, Chatterjee B, Venugopal V. Core-shell structured pullulan based nanocomposites as erlotinib delivery shuttles. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1626389] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Hriday Bera
- Faculty of Pharmacy, AIMST University, Bedong, Malaysia
| | - Sher Reen Ang
- Faculty of Pharmacy, AIMST University, Bedong, Malaysia
| | | | | | | | - Lee Ping Law
- Faculty of Pharmacy, AIMST University, Bedong, Malaysia
| | - Bappadity Chatterjee
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuala Lumpur, Malaysia
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19
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Bera H, Abbasi YF, Yoke FF, Seng PM, Kakoti BB, Ahmmed SM, Bhatnagar P. Ziprasidone-loaded arabic gum modified montmorillonite-tailor-made pectin based gastroretentive composites. Int J Biol Macromol 2019; 129:552-563. [DOI: 10.1016/j.ijbiomac.2019.01.171] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/27/2019] [Accepted: 01/28/2019] [Indexed: 12/26/2022]
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20
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Smart karaya-locust bean gum hydrogel particles for the treatment of hypertension: Optimization by factorial design and pre-clinical evaluation. Carbohydr Polym 2019; 210:274-288. [DOI: 10.1016/j.carbpol.2019.01.069] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/10/2019] [Accepted: 01/18/2019] [Indexed: 11/22/2022]
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21
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Sterculia Gum Based Multiple Units for Oral Drug Delivery. PLANT POLYSACCHARIDES-BASED MULTIPLE-UNIT SYSTEMS FOR ORAL DRUG DELIVERY 2019. [DOI: 10.1007/978-981-10-6784-6_6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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22
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Preetha BK, Badalamoole V. Modification of Karaya gum by graft copolymerization for effective removal of anionic dyes. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1549079] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- B. K. Preetha
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, Karnataka, India
| | - Vishalakshi Badalamoole
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, Karnataka, India
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23
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Padil VVT, Wacławek S, Černík M, Varma RS. Tree gum-based renewable materials: Sustainable applications in nanotechnology, biomedical and environmental fields. Biotechnol Adv 2018; 36:1984-2016. [PMID: 30165173 PMCID: PMC6209323 DOI: 10.1016/j.biotechadv.2018.08.008] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 07/22/2018] [Accepted: 08/24/2018] [Indexed: 12/22/2022]
Abstract
The prospective uses of tree gum polysaccharides and their nanostructures in various aspects of food, water, energy, biotechnology, environment and medicine industries, have garnered a great deal of attention recently. In addition to extensive applications of tree gums in food, there are substantial non-food applications of these commercial gums, which have gained widespread attention due to their availability, structural diversity and remarkable properties as 'green' bio-based renewable materials. Tree gums are obtainable as natural polysaccharides from various tree genera possessing exceptional properties, including their renewable, biocompatible, biodegradable, and non-toxic nature and their ability to undergo easy chemical modifications. This review focuses on non-food applications of several important commercially available gums (arabic, karaya, tragacanth, ghatti and kondagogu) for the greener synthesis and stabilization of metal/metal oxide NPs, production of electrospun fibers, environmental bioremediation, bio-catalysis, biosensors, coordination complexes of metal-hydrogels, and for antimicrobial and biomedical applications. Furthermore, polysaccharides acquired from botanical, seaweed, animal, and microbial origins are briefly compared with the characteristics of tree gum exudates.
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Affiliation(s)
- Vinod V T Padil
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, Liberec 1 461 17, Czech Republic.
| | - Stanisław Wacławek
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, Liberec 1 461 17, Czech Republic
| | - Miroslav Černík
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, Liberec 1 461 17, Czech Republic.
| | - Rajender S Varma
- Water Resource Recovery Branch, Water Systems Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, MS 483, Cincinnati, Ohio 45268, USA; Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic.
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24
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Facile synthesis and characterization of tailor-made pectin-gellan gum-bionanofiller composites as intragastric drug delivery shuttles. Int J Biol Macromol 2018; 118:149-159. [DOI: 10.1016/j.ijbiomac.2018.06.085] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 06/06/2018] [Accepted: 06/17/2018] [Indexed: 11/17/2022]
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25
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Seslija S, Spasojević P, Panić V, Dobrzyńska-Mizera M, Immirzi B, Stevanović J, Popović I. Physico-chemical evaluation of hydrophobically modified pectin derivatives: Step toward application. Int J Biol Macromol 2018. [DOI: 10.1016/j.ijbiomac.2018.03.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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26
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Bera H, Kumar S. Diethanolamine-modified pectin based core-shell composites as dual working gastroretentive drug-cargo. Int J Biol Macromol 2018; 108:1053-1062. [DOI: 10.1016/j.ijbiomac.2017.11.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/03/2017] [Accepted: 11/05/2017] [Indexed: 10/18/2022]
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27
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Carboxymethyl fenugreek galactomannan-gellan gum-calcium silicate composite beads for glimepiride delivery. Int J Biol Macromol 2018; 107:604-614. [DOI: 10.1016/j.ijbiomac.2017.09.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 08/30/2017] [Accepted: 09/12/2017] [Indexed: 11/24/2022]
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28
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Gelled Microparticles/Beads of Sterculia Gum and Tamarind Gum for Sustained Drug Release. POLYMER GELS 2018. [DOI: 10.1007/978-981-10-6080-9_14] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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29
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Guru PR, Bera H, Das MP, Hasnain MS, Nayak AK. Aceclofenac-LoadedPlantago ovataF. Husk Mucilage-Zn+2-Pectinate Controlled-Release Matrices. STARCH-STARKE 2017. [DOI: 10.1002/star.201700136] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Pravat Ranjan Guru
- Department of Pharmaceutics; Dadhichi College of Pharmacy; Vidya Vihar, Sundargram, Cuttack 754002 Odisha India
| | - Hriday Bera
- Faculty of Pharmacy; AIMST University; Semeling 08100 Kedah Malaysia
| | - Mukti Prasad Das
- Department of Pharmaceutics; Dadhichi College of Pharmacy; Vidya Vihar, Sundargram, Cuttack 754002 Odisha India
| | - M. Saquib Hasnain
- Department of Pharmacy; Shri Venkateshwara University; NH-24, Amroha 244236 U.P. India
| | - Amit Kumar Nayak
- Department of Pharmaceutics; Seemanta Institute of Pharmaceutical Sciences; Mayurbhanj 757086 Odisha India
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30
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Bera H, Nadimpalli J, Kumar S, Vengala P. Kondogogu gum-Zn+2-pectinate emulgel matrices reinforced with mesoporous silica for intragastric furbiprofen delivery. Int J Biol Macromol 2017; 104:1229-1237. [DOI: 10.1016/j.ijbiomac.2017.07.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 05/28/2017] [Accepted: 07/04/2017] [Indexed: 10/19/2022]
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31
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Jugdawa Y, Bhaw-Luximon A, Wesner D, Goonoo N, Schönherr H, Jhurry D. Polysucrose-based hydrogels for loading of small molecules and cell growth. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.03.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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32
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Core-shell alginate-ghatti gum modified montmorillonite composite matrices for stomach-specific flurbiprofen delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:715-726. [PMID: 28482582 DOI: 10.1016/j.msec.2017.03.074] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/05/2017] [Accepted: 03/10/2017] [Indexed: 11/20/2022]
Abstract
Novel alginate-arabic gum (AG) gel membrane coated alginate-ghatti gum (GG) modified montmorillonite (MMT) composite matrices were developed for intragastric flurbiprofen (FLU) delivery by combining floating and mucoadhesion mechanisms. The clay-biopolymer composite matrices containing FLU as core were accomplished by ionic-gelation technique. Effects of polymer-blend (alginate:GG) ratios and crosslinker (CaCl2) concentrations on drug entrapment efficiency (DEE, %) and cumulative drug release after 8h (Q8h, %) were studied to optimize the core matrices by a 32 factorial design. The optimized matrices (F-O) demonstrated DEE of 91.69±1.43% and Q8h of 74.96±1.56% with minimum errors in prediction. The alginate-AG gel membrane enveloped optimized matrices (F-O, coated) exhibited superior buoyancy, better ex vivo mucoadhesion and slower drug release rate. The drug release profile of FLU-loaded uncoated and coated optimized matrices was best fitted in Korsmeyer-Peppas model with anomalous diffusion and case-II transport driven mechanism, respectively. The uncoated and coated matrices containing FLU were also characterized for drug-excipients compatibility, drug crystallinity, thermal behaviour and surface morphology. Thus, the newly developed alginate-AG gel membrane coated alginate-GG modified MMT composite matrices are appropriate for intragastric delivery of FLU over an extended period of time with improved therapeutic benefits.
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HPMC-based gastroretentive dual working matrices coated with Ca +2 ion crosslinked alginate-fenugreek gum gel membrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:170-181. [DOI: 10.1016/j.msec.2016.05.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 04/11/2016] [Accepted: 05/03/2016] [Indexed: 11/18/2022]
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34
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Abbasi S, Yousefi G, Ansari AA, Mohammadi-Samani S. Formulation and in vitro evaluation of a fast-disintegrating/sustained dual release bucoadhesive bilayer tablet of captopril for treatment of hypertension crises. Res Pharm Sci 2016; 11:274-83. [PMID: 27651807 PMCID: PMC5022375 DOI: 10.4103/1735-5362.189284] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Hypertension crisis is one of the main health problems and its effective treatment is of high importance. For this purpose, fast-disintegrating and sustained release formulations of captopril, as a drug of choice, were prepared using conventional mucoadhesive polymers hydroxypropyl methylcellulose (HPMC), sodium carboxymethyl cellulose (Na-CMC), hydroxypropyl cellulose (HPC), Carbopol 934 (CP934) and sodium alginate (Na-alg). The optimum sustained release formulations were selected based on mean dissolution time (MDT). The swellability and mucoadhesive properties of selected formulations were assessed and compared. A direct relationship between swelling and release rates/adhesiveness of sustained release formulations was observed. The results showed that formulations containing combination of CP934 and cellulose-based polymers had the highest swellability, sustainability and adhesion strength. These formulations prolonged drug release up to 8 h showing good fitness to Korsemeyer-Peppas model. Moreover, the adopted fast-disintegrating tablet could release up to 100% of drug within 3 min in oral pH. Finally, a dual fast-disintegrating/sustained release bucoadhesive bilayer tablet consisting of optimized formulations was prepared releasing 30% of the drug initially within 15 min and the remaining up to 8 h which could be considered as an appropriate formulation for the treatment of hypertension crises.
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Affiliation(s)
- Sahar Abbasi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Gholamhossein Yousefi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Ali Asghar Ansari
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Soliman Mohammadi-Samani
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
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35
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Wang W, Lei Y, Sui H, Zhang W, Zhu R, Feng J, Wang H. Fabrication and evaluation of nanoparticle-assembled BSA microparticles for enhanced liver delivery of glycyrrhetinic acid. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:740-747. [DOI: 10.1080/21691401.2016.1193024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wenping Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
- Ningxia Engineering and Technology Research Center for Modernization of Hui Medicine, Yinchuan, Ningxia, China
- Key Lab of Hui Ethnic Medicine Modernization, Ministry of Education, Yinchuan, Ningxia, China
| | - Yaya Lei
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Hong Sui
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
- Ningxia Engineering and Technology Research Center for Modernization of Hui Medicine, Yinchuan, Ningxia, China
- Key Lab of Hui Ethnic Medicine Modernization, Ministry of Education, Yinchuan, Ningxia, China
| | - Wenping Zhang
- Department of Pharmaceutics, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Rongyue Zhu
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jun Feng
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Hong Wang
- Department of Pharmaceutics, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
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36
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Sterculia Gum-Based Hydrogels for Drug Delivery Applications. POLYMERIC HYDROGELS AS SMART BIOMATERIALS 2016. [DOI: 10.1007/978-3-319-25322-0_5] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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37
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Seslija S, Veljovic D, Kalagasidis Krusic M, Stevanovic J, Velickovic S, Popovic I. Cross-linking of highly methoxylated pectin with copper: the specific anion influence. NEW J CHEM 2016. [DOI: 10.1039/c5nj03320a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly methoxylated pectin was cross-linked using different copper salts. The dependence between anion type, sorption capacity, mechanical and structural properties of obtained beads was found and correlated with Hofmeister theory.
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Affiliation(s)
- Sanja Seslija
- University of Belgrade
- Institute of Chemistry
- Technology and Metallurgy
- 11000 Belgrade
- Serbia
| | - Djordje Veljovic
- University of Belgrade
- Faculty of Technology and Metallurgy
- 11000 Belgrade
- Serbia
| | | | - Jasmina Stevanovic
- University of Belgrade
- Institute of Chemistry
- Technology and Metallurgy
- 11000 Belgrade
- Serbia
| | - Sava Velickovic
- University of Belgrade
- Faculty of Technology and Metallurgy
- 11000 Belgrade
- Serbia
| | - Ivanka Popovic
- University of Belgrade
- Faculty of Technology and Metallurgy
- 11000 Belgrade
- Serbia
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