Abstract:
OBJECTIVES:In this study, central composite factorial design was used for the preparation and optimization of chitosan/Na-alginate hydrogel films containing metformin via solvent evaporation technique. METHODS:Low and high molecular weight (MW) chitosan was used as a polymer in different concentrations while genipin was used as a crosslinking agent. Drug release studies were performed in simulated gastric and intestinal fluids at pH 1.2 and 7.4 of formulated hydrogels. RESULTS:For low MW chitosan hydrogel, the highest drug release at pH 1.2 was observed i.e., 9.82% for 2 hrs while at pH 7.4, 95.52% drug release was observed after 12 hrs. In case of high MW chitosan hydrogel 9.67% drug release at ph1.2 for 2 hrs and 90.63% drug release at pH 7.4 after 12 hrs was observed. The highest T50% of low MW and high MW chitosan hydrogel was observed as 22.72 and 33.34 hrs, respectively, while the highest dynamic swelling was observed as 8.21 and 7.9, respectively. CONCLUSION:It was found that by changing the ratios of polymers as well as crosslinking agent, the release rate of metformin can be modified. Low MW chitosan hydrogel showed an increased release rate than high MW chitosan hydrogel and by increasing the concentration of crosslinking agent, the release rate was found to be decreased and vice versa.
journal_name
Curr Drug Delivjournal_title
Current drug deliveryauthors
Ubaid M,Murtaza Gdoi
10.2174/1567201815666180409102459subject
Has Abstractpub_date
2018-01-01 00:00:00pages
1146-1158issue
8eissn
1567-2018issn
1875-5704pii
CDD-EPUB-89599journal_volume
15pub_type
杂志文章abstract::The aim of this work is to study liposomes as carriers of nutrients and therapeutic agents in aquaculture with Venerupis decussatus and Venerupis pullastra larvae. Multilamellar (MLVs) and large unilamellar (LUVs) vesicles were prepared from a commercial mixture of soy phosphatidylcholine, rich in unsaturated and poly...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201043479957
更新日期:2004-04-01 00:00:00
abstract:BACKGROUND:Tuberculosis is an infection and caused by gentle growing bacteria. The Internet provides opportunities for people with tuberculosis (TB) to connect with one another to address these challenges. OBJECTIVE:The aim of this paper is to introduce readers to the platforms on which Tuberculosis participants inter...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/1567201814666171120125916
更新日期:2018-01-01 00:00:00
abstract::Several groups have shown that vaccine antigens can be encapsulated within polymeric microparticles and can serve as potent antigen delivery systems. We have recently shown that an alternative approach involving charged polylactide co-glycolide (PLG) microparticles with surface adsorbed antigen(s) can also be used to ...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/156720106775197565
更新日期:2006-01-01 00:00:00
abstract::Medicated foams and film forming systems are dosage forms formulated to undergo a controlled metamorphosis when applied on the skin. Indeed, due to the presence of propellant or a particular air-spray foam pump, a liquid can generate foam when applied on the stratum corneum, or a liquid or conventional dosage form can...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/1567201816666190118124439
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVE:An injectable long acting In-Situ Forming Gel (ISFG) of human Growth Hormone (hGH) was prepared by using triblock PCL-PEG-PCL (Mw 1500-1500-1500). Ring-Opening Polymerization (ROP) of triblock using microwave was applied. METHODS:The BCA protein assay Kit was used to determine the concentration of hGH in the...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201817666200120120105
更新日期:2020-01-01 00:00:00
abstract::Therapeutic drug monitoring (TDM) is a valuable tool for tailoring the dosage of the prescribed medication(s) to the individual pharmacokinetic characteristics of a patient. In psychiatry and neurology, however, proven evidence that TDM should be used for treatment with the multiple neuropsychiatric medications is res...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201812666151029100909
更新日期:2016-01-01 00:00:00
abstract::Methylene blue (MB) has been shown to slow down the progression of the Alzheimer's disease (AD) and other tauopathies; however distribution of MB into the brain is limited due its high hydrophilicity. In this study, we aimed to prepare novel hydrophobic glutathione coated PLGA nanoparticles to improve bioavailability ...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201810666131113102037
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Drug design and discovery studies still remain of great importance in the search for more convenient chemotherapeutic to avoid the drug resistance, systemic toxicity or the longterm side effects. OBJECTIVE:A series of mononuclear gold (III) and platinum (II) complexes based on 4-dihydroxyboryl- DL-phenylala...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201815666180727145724
更新日期:2018-01-01 00:00:00
abstract::The objective of present investigation was the characterization of chitosan films after in vivo implantation. Chitosan films were prepared at three dose loadings of paclitaxel by classical casting method. They were implanted subcutaneously in Swiss mice in the neck region and were removed at 7, 15, 21 and 30 days post...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/156720106777731028
更新日期:2006-07-01 00:00:00
abstract::The objective of the present study was to fabricate and evaluate a multiparticulate oral gastroretentive dosage form of baclofen characterized by a central large cavity (hollow core) promoting unmitigated floatation with practical applications to alleviate the signs and symptoms of spasticity and muscular rigidity. So...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201811666140414113838
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Chrysin is a strong inhibitor of breast cancer resistance protein (BCRP) but it is practically insoluble in water. Effective solubilization of chrysin is critical for its pharmaceutical application as an absorption enhancer via inhibition of BCRP-mediated drug efflux. OBJECTIVE:This study aimed to develop a...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201815666180924151458
更新日期:2019-01-01 00:00:00
abstract::Resveratrol is a phenolic compound that has been widely studied in the last years because of its extensive pharmacological properties. It also has physicochemical properties that are adequate for diffusion through the human skin. An analytical method by high performance liquid chromatography was developed and validate...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201812666150130161736
更新日期:2015-01-01 00:00:00
abstract::The blood brain barrier protects the brain from harmful substances in the blood stream and has stopped the development of many powerful and interesting drugs candidates for central nervous system due to the low poor distribution and by efflux mechanisms. Many different approaches have been developed in order to overco...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/156720109788680912
更新日期:2009-07-01 00:00:00
abstract::The most common feature for antigen-delivery systems is their particulate nature. Together with a certain depot effect, it is the particulate nature that primarily dictates whether the antigen-delivery system will be successful in inducing a certain type and strength of immune response. In this article, we will summar...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/156720106778559029
更新日期:2006-10-01 00:00:00
abstract:BACKGROUND:Colloidal systems are most prominent delivery systems mainly used as vehicles for the transportation, targeting the various types of biomolecules, proteins, peptides, synthetic medicinal agents. OBJECTIVE:To provide concise information on patents that are directly or indirectly related to the nanoemulsions....
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/1567201812666150901111930
更新日期:2016-01-01 00:00:00
abstract::Relief of chronic pain is an important clinical problem requiring special care and approaches. The present study was designed for the construction of a controlled release system for local application of analgesics (hydromorphone (HM), morphine (M), and codeine (C)) and a local anesthetic, bupivacaine (BP). An interpen...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201043480081
更新日期:2004-01-01 00:00:00
abstract:AIM:This study was focused on the formulation of the multi-unit extended-release peroral delivery device of lamotrigine for better management of epilepsy. BACKGROUND:The single-unit extended-release peroral preparations often suffer from all-or-none effect. A significant number of multi-unit delivery systems have been...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201817666200317124022
更新日期:2020-01-01 00:00:00
abstract::Curcumin as an antioxidative agent which has been widely used medicinally in India and China. However, rapid metabolism coupled with the instability of curcumin under physiological conditions has greatly limited its applications in vivo. In the present study, a thermosensitive hydrogel with high payload of curcumin wa...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201813666151109102532
更新日期:2016-01-01 00:00:00
abstract::The stratum corneum (SC) is a primary rate limiting barrier to permeation of drug molecules through the skin. Small molecular weight lipophilic drugs that are effective at low doses can be effectively delivered by passive transdermal delivery. The SC does not permit passage of polar/hydrophilic and macromolecules. Pas...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/156720110791011765
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Despite therapeutics based on siRNA have an immense potential for the treatment of incurable diseases such as cancers. However, the in vivo utilization of siRNA and also the delivery of this agent to the target site is one of the most controversial challenges. The helpful assistance by nanoparticles can impr...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/1567201813666160816105408
更新日期:2017-01-01 00:00:00
abstract::psyllium, a medicinally active gel forming natural polysaccharide and a dietary fiber has been used as a medicine in myriad of conditions such as constipation and inflammatory bowel syndrome. One of its more recent uses that have received attention has been its ability to reduce blood sugar levels in diabetics. Theref...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201811310030010
更新日期:2013-06-01 00:00:00
abstract::The objective of the present research is to prepare stable nano suspensions of Valsartan (VAL) with high solubility and dissolution. VAL is an orally administered anti-hypertensive drug with lower bio-availability of 25%, this is attributed to its lower aqueous solubility (0.082 mg/ml). VAL nano suspensions were prepa...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201812666150724094358
更新日期:2016-01-01 00:00:00
abstract::Motivated by the success and exhaustive research on carbon nanotubes (CNTs) based drug delivery, graphene, a two-dimensional; honey-comb crystal lattice has emerged as the rising star in recent years. Graphene is a flat monolayer of carbon atoms that holds many promising properties such as unparalleled thermal conduct...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/1567201811666140605151600
更新日期:2014-01-01 00:00:00
abstract::Hepatocellular carcinoma (HCC) is most common lethal malignancy worldwide. About 80% of liver cancer cases are attributed to the combined effects of Hepatitis B and C virus infections. The factors affecting development of HCC include cirrhosis and histological markers of increased liver cell proliferation, environment...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:
更新日期:2013-11-24 00:00:00
abstract:BACKGROUND:Gemcitabine (GEM) is found effective in the treatment of many solid tumors. However, its use is restricted due to its small circulation half-life, fast metabolism and low capacity for selective tumor uptake. Folate receptors (FRs) have been recognized as cellular surface markers, which can be used for cancer...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201815666181024112252
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVE:A new tumor targeted polymer-coated gold/graphene hybrid has been developed for achieving simultaneously thermoablation and chemoterapy of folate receptor-positive cancer cells. METHODS:The gold/graphene hybrid was prepared by depositing gold nanospheres onto graphene oxide and coating it with an inulin-fola...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/1567201813666160520113804
更新日期:2017-01-01 00:00:00
abstract::The objective of this study was to develop and evaluate mucoadhesive microsphere of diclofenac sodium with natural gums for sustained delivery. Guar gum and tragacanth were used along with sodium alginate as mucoadhesive polymers. Microspheres were formulated using orifice-ionic gelation method. Particle size, surface...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/15672018113109990054
更新日期:2013-12-01 00:00:00
abstract::A review with 93 references. Heparins are high molecular weight, hydrophilic polyanions, which are unstable under acidic conditions; and therefore they exhibit poor oral bioavailability. Consequently they must be administered via the parenteral route which is expensive, inconvenient, and limits use by outpatients. The...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/1567201054367968
更新日期:2005-07-01 00:00:00
abstract::Conventional dosage forms such as tablets, capsules and syrups are prescribed in the normal course of practice. However, concerns about patient preferences and market demands have given rise to the exploration of novel unconventional dosage forms. Among these, confectionery-based dose forms have strong potential to ov...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/1567201811666140821112637
更新日期:2015-01-01 00:00:00
abstract::Reactive oxygen species (ROS) and free radicals have been implicated in a number of diseases and disorders, and the skin, for its localization, is exposed to a large number of environmental threats. Free radical scavengers and antioxidants have thus been proposed as protective or therapeutic agents against ROS-mediate...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/156720111797635487
更新日期:2011-11-01 00:00:00