Background Fullerenes(C60) have some potential biological effects,such as inhibition of HTV protease,antiviral activity,specific cleavage of DNA and photodynamic therapy(PDT)(1,2).C60 also has a great potential to be ...
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Background Fullerenes(C60) have some potential biological effects,such as inhibition of HTV protease,antiviral activity,specific cleavage of DNA and photodynamic therapy(PDT)(1,2).C60 also has a great potential to be used as a antitumor drug carrier(2).Docetaxel (DTX),a first line cancer chemotherapeutic,which is in the treatment of a wide spectrum of cancers(3).Folic acid(FA),which can be used as a targeting head for target drugs to improve biodistribution and be more effective tumor therapy(4).In the present study,
Objective:To develop a novel kind of mesoporous TiO(MST)nanoparticle for loading and improving the dissolution rate of poorly water-soluble ***:the conventional calcination method was replaced by a simple ethanol ex...
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Objective:To develop a novel kind of mesoporous TiO(MST)nanoparticle for loading and improving the dissolution rate of poorly water-soluble ***:the conventional calcination method was replaced by a simple ethanol extraction method to synthesize MST *** SEM/TEM,XRD,N adsorption/desorption,scanning calorimetry(DSC),thermogravimetric analysis(TGA)and in vitro dissolution test were used to explore the role of MST on drug loading and release behaviors.
Objective:The objective of this study was to develop an efficient dual-ligand liposomal delivery system co-modified with transferring(TF) and TAT,which possessed increased cellular uptake efficiency and targeting spec...
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Objective:The objective of this study was to develop an efficient dual-ligand liposomal delivery system co-modified with transferring(TF) and TAT,which possessed increased cellular uptake efficiency and targeting specificity. Methods:Liposomes were prepared by the thin film - hydration *** the uptake study in vitro,HepG2,A2780 and HUVEC that possess different expressing level of TFR on the surface were incubated with liposomes labeled with CF-PE at 37℃for 4 hours.
Nanotechnology-based antigen delivery has been developed as a vaccine strategy due to its dose-sparing and prolonged antigen presentation *** the current study,we examined the feasibility of nanoparticle(NP)-mediated ...
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Nanotechnology-based antigen delivery has been developed as a vaccine strategy due to its dose-sparing and prolonged antigen presentation *** the current study,we examined the feasibility of nanoparticle(NP)-mediated delivery of antigenic peptides to efficiently induce cytotoxic T lymphocyte responses against tumor-associated self-antigens in C57BL/6 mouse *** biodegradable poly(D,L-lactide-co-glycolide) nanoparticle(PLGA-NP) carrying single murine melanoma antigenic peptides,
In recent years,cell-penetrating peptides (CPPs) have been proven to be a useful tool in improving the membrane translocation capacity of bioactive macromolecules via covalent *** intestinal absorption of macromolecul...
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In recent years,cell-penetrating peptides (CPPs) have been proven to be a useful tool in improving the membrane translocation capacity of bioactive macromolecules via covalent *** intestinal absorption of macromolecules can also be enhanced by electrostatic interaction with CPPs;however,the application of this strategy is restricted to negatively charged *** the present study,we devised an approach utilizing CPP-functionalized poly(lactic-co-glycolic acid) (PLGA) nanoparticles as a carrier for the oral delivery of *** surfaces of pegylated PLGA nanoparticles were functionalized with arginine-rich poly(arginine)8 peptide enantiomers (L-R8 and D-R8) via a maleimide-mediated covalent conjugating procedure.
Although brain tumor tandem targeting strategies mediated by receptors has shown success with intense research,it's difficult for these strategies to delivery therapeutic molecules into stroke brain that is charac...
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Although brain tumor tandem targeting strategies mediated by receptors has shown success with intense research,it's difficult for these strategies to delivery therapeutic molecules into stroke brain that is characterized by cessation of cerebral blood flow and reperfusion of the occluded vessel.A typical feature of ischemic stroke is the inflammatory response with recruitment of leukocytes to the site of *** leukocytes mainly include monocytes and *** RGD sequence(Arg-Gly-Asp) is known to serve as a recognition motif in multiple ligands for integrin av|31,which is highly expressed on the surface of *** coupling with
Objective:During the last decade years,Caco-2 cell monolayers have been used as an intestinal model to evaluate the effect of delivery systems on drug permeation via transcellular and paracellular *** it lacks goblet,...
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Objective:During the last decade years,Caco-2 cell monolayers have been used as an intestinal model to evaluate the effect of delivery systems on drug permeation via transcellular and paracellular *** it lacks goblet,mucus-secreting and *** order to better simulate the endosomatic environment in vitro,HT-29 subclones have been used in co-culture with Caco-2 cells to mimic the small intestinal epithelial *** aim of this study was to evaluate the transport properties of solid lipid nanoparticles (SLN) across Caco-2 and mucus-secreting Caco-2/HT29 co-culture cell monolayers.
OBJECTIVE:To sustain the release ofpaliperidone in *** Oil suspensions were prepared by mixing drugs with oil under vigorous vortex *** investigate the effects of different factors,such as particle size,suspension med...
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OBJECTIVE:To sustain the release ofpaliperidone in *** Oil suspensions were prepared by mixing drugs with oil under vigorous vortex *** investigate the effects of different factors,such as particle size,suspension medium,drug loading and dosage volume,on in vitro *** vitro release studies of paliperidone oil suspension were performed in dialysis bags in wide neck flasks with 200ml of PBS (pH 7.4) at 37℃ in water bath *** was withdrawn for analysis by HPLC at predetermined time *** The optimal patch was acquired with drug loading of 6mg/ml,and dosage volume of *** oil gave a slower drug release at early stage and higher release degree than sesame *** size had no significant effect on in vitro release within a certain *** One simple preparation method for paliperidone oil suspension was established with steady in vitro release behavior for a week.
In this study,a pH and temperature dual-sensitive liposome gel based on novel cleavable mPEG-Hz-CHEMS polymer has been applied to vaginal administration for gynecological *** pH-sensitive cleavable mPEG-Hz-CHEMS was d...
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In this study,a pH and temperature dual-sensitive liposome gel based on novel cleavable mPEG-Hz-CHEMS polymer has been applied to vaginal administration for gynecological *** pH-sensitive cleavable mPEG-Hz-CHEMS was designed as a modified pH-sensitive liposome that would selectively degrade under locally acidic vaginal physiological *** novel pH-sensitive liposome was engineered to form thermogels at body temperature and degrade in an acidic environment.
Cancer is one of the main causes leading to death,which seriously endangers human health and *** chemotherapy relies on cytotoxic drugs to kill rapidly proliferated cancer cells as much as ***,since most of the cytoto...
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Cancer is one of the main causes leading to death,which seriously endangers human health and *** chemotherapy relies on cytotoxic drugs to kill rapidly proliferated cancer cells as much as ***,since most of the cytotoxic drugs are non-specific,they could kill normal cells along with tumor cells,which causes severely damages to normal tissues and a variety of adverse effects,accordingly reduces the life quality of *** addition,the therapeutic effect of conventional chemotherapy against solid tumors,which account for more than 90%of cancer currently,is far away from validity.
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