Abstract:
:Chitosan-glutaraldehyde microparticles were produced by emulsion crosslinking method to be used as drug delivery system for polyphenols from Thymus serpyllum L. aqueous extract. The effect of preparation conditions, chitosan concentration (1.5-3% w/v), and glutaraldehyde/chitosan (GA/Ch) mass ratio (0.15-1.20) on water and polyphenols transport properties was investigated. Swelling ratio of dry particles (68-230 µm) in water ranged from 280% to 530%, depending on the formulation. The decrease in swelling was observed with increased GA/Ch mass ratio (i.e. crosslinking degree) at the same chitosan concentration, or with increased chitosan concentration at the same GA/Ch mass ratio. The increase in GA/Ch mass ratio was also manifested by increased particle compactness i.e. decreased size and reduced surface roughness. The sorption capacity for polyphenols seems to be a complex interplay of swelling behaviour and interactions chitosan-glutaraldehyde-polyphenols identified by Fourier transmission infrared analysis. An increase in crystallinity of chitosan was observed upon crosslinking with glutaraldehyde and encapsulation of polyphenols, as observed by X-ray diffraction analysis. The results obtained from release kinetics of selected polyphenolic compounds (caffeic acid, rosmarinic acid, total flavonoids, and total phenol content) showed that polyphenols were released at a lower amount (2-4 times) in water, but more rapidly (45-120 min) in comparison with the release in gastric followed by intestinal simulated fluid (SGF-SIF) (120-240 min). The experimental results of the time-dependent swelling in water and polyphenols release in both, water and SGF-SIF, were analyzed with several mathematical models. The results depicted Fickian diffusion as the water transport mechanism. In the case of polyphenols, only empirical Weibull model could be suggested for describing release kinetics.
journal_name
J Biomater Appljournal_title
Journal of biomaterials applicationsauthors
Trifković K,Milašinović N,Djordjević V,Zdunić G,Kalagasidis Krušić M,Knežević-Jugović Z,Šavikin K,Nedović V,Bugarski Bdoi
10.1177/0885328215598940subject
Has Abstractpub_date
2015-11-01 00:00:00pages
618-31issue
5eissn
0885-3282issn
1530-8022pii
0885328215598940journal_volume
30pub_type
杂志文章abstract::A multifunctional targeted nanoplatform combining photothermal therapy and chemotherapy has emerged as a promising strategy for comprehensive therapies of breast cancer. In this study, we constructed human epidermal growth factor receptor 2 (Her2)-targeted gold nanoshelled poly(lactic-co-glycolic acid) hybrid nanocaps...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328220929616
更新日期:2020-09-01 00:00:00
abstract::Herb borneol is usually used in clinics for the treatment of central nervous system illness, for its ability of blood-brain barrier permeability, although its poor water solubility and poor bioavailability limit its clinical application to some degree. In this study, we developed a novel nanoparticle combining the ben...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328218799551
更新日期:2018-10-01 00:00:00
abstract::In this study, the effects of sodium carbonate (Na(2)CO(3) ) solution with different concentrations (10, 15, 20, and 25 wt%) as liquid phase on the setting time and compressive strength of tricalcium silicate bone cements are investigated. The in vitro bioactivity and degradability of the resultant Ca(3)SiO(5)-Na(2)CO...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328208088714
更新日期:2008-11-01 00:00:00
abstract::Nanohydroxyapatite (nanoHA), due to its chemical properties, has appeared as an exceptionally promising bioceramic to be used as bone regeneration material. Staphylococcus epidermidis have emerged as major nosocomial pathogens associated with infections of implanted medical devices. In this work, the purpose was to st...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328213507300
更新日期:2014-05-01 00:00:00
abstract::Nonviral gene delivery systems are finding widespread use due to their safety, rapid and economical production, and ease of modification. In this work, series of N-alkyl-substituted linear polyethylenimine (CP) polymers have been synthesized, characterized, and investigated about how degree of substitution (hydrophobi...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328217710125
更新日期:2017-07-01 00:00:00
abstract::Polymer biocomposites based on segmented poly(ester urethane) and extracellular matrix components have been prepared for the development of tissue engineering applications with improved biological characteristics of the materials in contact with blood and tissues for long periods. Thermal, dynamical, and dielectrical ...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328210394468
更新日期:2012-08-01 00:00:00
abstract::Titanium and hydroxyapatite (HA) are widely used as biomaterials for dental and medical applications. HA-coated titanium implants have excellent biocompatibility and mechanical properties. However, the adherence of HA film formed on titanium substrate is weak because of the lack of chemical interaction between HA and ...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328209340334
更新日期:2010-03-01 00:00:00
abstract::Cellulose acetate phthalate and Pluronic F-127 combined together (70:30 wt:wt) create a rigid, surface-eroding association polymer. To impart flexibility into the polymer system and allow for a drug delivery film that can contour to varying wound shapes, plasticizers were added. Triethyl citrate or tributyl citrate wa...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328213480979
更新日期:2014-01-01 00:00:00
abstract::The aim of this study was to evaluate the possibility of metal complex formation between sodium-phosphorylated chitosan (PCTS) and ZnO. The polymer-metal complex formation was investigated in terms of thermal degradation. The structure deduction of the PCTS/ZnO complex was investigated by means of Fourier transform in...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328211408371
更新日期:2012-11-01 00:00:00
abstract::The purpose of this study was to develop a specific targeting magnetic nanoparticle probe for magnetic resonance imaging and therapy in the form of local hyperthermia. Carboxymethyl dextran-coated ultrasmall superparamagnetic iron oxide nanoparticles with carboxyl groups were coupled to cyclic arginine-glycine-asparti...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328213493486
更新日期:2014-03-01 00:00:00
abstract::Polypropylene meshes are standard for hernia repair. Matrix metalloproteinases play a central role in inflammation. To reduce the inflammatory response and improve remodelling with an associated reduction of hernia recurrence, we modified polypropylene meshes by nanofibre coating and saturation with the broad-spectrum...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328218759043
更新日期:2018-05-01 00:00:00
abstract::Phase-sensitive in situ gel-forming controlled release formulations of insulin were prepared using poly(lactide-co-glycolide) and a solvent system consisting of various proportions of benzyl benzoate and benzyl alcohol. The in vitro release samples of formulations were assayed for insulin content by enzyme linked immu...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328209359959
更新日期:2011-03-01 00:00:00
abstract::This investigation describes the synthesis and in vitro evaluation of cationic hydrogel sub-microparticles based on polydimethylaminoethylmethacrylate for oral insulin delivery. Polymerization of dimethylaminoethylmethacrylate was carried out in aqueous medium with potassium persulfate as the initiator. Quaternization...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328212437392
更新日期:2013-07-01 00:00:00
abstract::The process of molecular self-assembly plays a crucial role in formulation of polymeric nanoparticulated drug delivery carriers as it creates the possibility for enhanced drug encapsulation and carrier surface engineering. This study aimed to develop a novel self-assembled polymeric micelles for targeted delivery in t...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328214549612
更新日期:2015-01-01 00:00:00
abstract::Hydrogels were prepared from 2-hydroxyethyl methacrylate and ethylene glycol dimethacrylate as cross-linking agent. Two different polymerization techniques were followed, namely bulk polymerization initiated by dibenzoyl peroxide and solution polymerization, in water, using a redox initiator system. Differences in the...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/088532829801200402
更新日期:1998-04-01 00:00:00
abstract::An experimental and computational investigation of the self-tapping ability of carbon fibre reinforced polyetheretherketone (CFR-PEEK) has been conducted. Six CFR-PEEK suture anchor designs were investigated using PEEK-OPTIMA® Reinforced, a medical grade of CFR-PEEK. Experimental tests were conducted to investigate th...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328214535274
更新日期:2014-10-01 00:00:00
abstract::The development of an effective wound dressing with the ability to induce skin wound healing is a great challenge in medicine. Nanofibers are highly attractive for wound dressing preparation due to their properties such as hemostasis induction, good absorption of wound exudates, and facilitation of cell growth. Chitos...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328217739562
更新日期:2018-01-01 00:00:00
abstract::The adhesion of platelets, red blood cells, and lymphocytes onto various polymer substrates, hydrophobic to hydrophilic in nature, has been studied. Cell adhesion is found to be higher on hydrophilic substrates. The stability of these adhered cells has also been studied under a flow rate of 20 ml/min. Further the effe...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/088532829100600105
更新日期:1991-07-01 00:00:00
abstract::The purpose of this research was to develop novel nanoparticles (NPs) of star-like copolymer mannitol-functionalized poly(lactide)-vitamin E TPGS (M-PLA-TPGS) for paclitaxel delivery for prostate cancer treatment, and evaluate their therapeutic effects in prostate cancer cell line and animal model in comparison with t...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328214527486
更新日期:2014-09-01 00:00:00
abstract::Sodium alginate is an effective biomaterial for tissue engineering applications. Non-purified alginate is contaminated with protein, lipopolysaccharide, DNA, and RNA, which could elicit adverse immunological reactions. We developed a purification protocol to generate biocompatible alginate based on (a) activated charc...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328216645952
更新日期:2016-10-01 00:00:00
abstract::The effect of an ampholytic surfactant on the swelling properties of polymeric materials was studied, using various swelling liquids. Tablets were prepared consisting of hydroxypropyl methylcellulose, poly(oxyethylene) and sodium alginate. Tego betain was the non-ionic surfactant used as an additive in a series of sam...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1106/GX1T-2JC6-QWC6-69GC
更新日期:2000-07-01 00:00:00
abstract::An electronic sensor system for urinary bladder pressure monitoring requires an imbedding into a biocompatible, flexible, and liquid-impermeable material. Poly(dimethylsiloxane) (PDMS) was selected in the present set-up as packaging material because it fulfills the abovementioned requirements. However, the surface of ...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328211422119
更新日期:2013-02-01 00:00:00
abstract::The purpose of this study is the development of a nerve electrode that reorganizes nerve geometry slowly and controllably. The Flat Interface Nerve Electrode (FINE) can reshape the nerve into an elongated oval and provide selective stimulation. However, the rate of closure of this electrode is difficult to control. Th...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328208097426
更新日期:2009-09-01 00:00:00
abstract::The objective of the study was to produce three-dimensional and porous nanofiber reinforced hydrogel scaffolds that can mimic the hydrated composite structure of the cartilage extracellular matrix. In this regard, wet-electrospun poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) nanofiber reinforced carboxymethyl ch...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328220930714
更新日期:2020-10-01 00:00:00
abstract::The relative surface charge and free energy of forty-one coagulase-negative staphylococci were found to be normally distributed; therefore, they can be considered a homogeneous group under strict statistical criteria. The adherence of these bacteria to eight different biomaterials (seven synthetic and one biologic) wa...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/088532829200700203
更新日期:1992-10-01 00:00:00
abstract::The paper studies the coupling reaction by covalent bonding of acetylamino-2-sulfamoyl-1,3,4-thiodiazole (AcAA) on the poly(acrylic acid-costyrene) copolymer (PAcA-S) in homogeneous system, in the presence of dicyclohexylcarbodiimide (DCC) as activator. The influence of some factors on coupling efficiency (the drug/su...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/088532829200700105
更新日期:1992-07-01 00:00:00
abstract::Polylactic acid (PLA)-derived polymers are widely used in many biotechnological fields, thanks to their biocompatibility and resorbability through natural pathways. Moreover, PLA is one of the few polymers in which both the properties and the stereochemical structure can be easily modified, making possible a specific ...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328211398298
更新日期:2012-08-01 00:00:00
abstract::Hemocompatibility is the goal for any biomaterial contained in extracorporeal life supporting medical devices. The hallmarks for hemocompatibility include nonthrombogenicity, platelet preservation, and maintained platelet function. Both in vitro and in vivo assays testing for compatibility of the blood/biomaterial int...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章,评审
doi:10.1177/0885328214538866
更新日期:2014-10-01 00:00:00
abstract::Excessive demineralization in osteoporotic bones impairs its self-regeneration potential following a defect/fracture and is of great concern among the aged population. In this context, implants with inherent osteogenic ability loaded with therapeutic ions like Strontium (Sr2+) may bring forth promising outcomes. Micro...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1177/0885328216647197
更新日期:2016-10-01 00:00:00
abstract::Using a hydraulic stress simulator, the mechanical behavior of the porcine pericardium used in the construction of cardiac valve leaflets was characterized following the same procedure employed with calf pericardium in Part 1 of this study. One hundred fifty pairs of tissue samples were subjected to tensile testing to...
journal_title:Journal of biomaterials applications
pub_type: 杂志文章
doi:10.1106/3JXM-UTPN-PXTG-72DT
更新日期:2001-07-01 00:00:00