Showing 1-20 of 20 results for "137456"
Luqiao Wen et al.
Drug development and industrial pharmacy, 46(2), 283-295 (2020-01-17)
In this study, we evaluated and screened the effects of the molecular weight (MW) and molar ratio of poly(2-ethyl-2-oxazoline)-cholesteryl methyl carbonate (PEtOz-CHMC) on the pH sensitivity, stability, and antitumor efficacy of liposomes. The pH sensitivity of PEtOz-CHMC with different MWs...
Chenxi Li et al.
Molecular pharmaceutics, 16(6), 2648-2660 (2019-05-03)
The complement system plays an important role in host innate immunity, and its activation can be exploited as a potential strategy for vaccine adjuvants. Herein, a pH-responsive micellar vaccine platform (COOH-NPs) was developed using a carboxyl-modified diblock copolymer of poly(2-ethyl-2-oxazoline)-poly(d,l-lactide)...
Ondrej Sedlacek et al.
Biomaterials, 146, 1-12 (2017-09-12)
We designed and synthesized a new delivery system for the anticancer drug doxorubicin based on a biocompatible hydrophilic poly(2-ethyl-2-oxazoline) (PEtOx) carrier with linear architecture and narrow molar mass distribution. The drug is connected to the polymer backbone via an acid-sensitive...
Blaise L Tardy et al.
Biomacromolecules, 20(3), 1421-1428 (2019-02-23)
Metal-phenolic network (MPN) coatings have generated increasing interest owing to their biologically inspired nature, facile fabrication, and near-universal adherence, especially for biomedical applications. However, a key issue in biomedicine is protein fouling, and the adsorption of proteins on tannic acid-based...
Naile Ozturk et al.
Journal of microencapsulation, 37(7), 467-480 (2020-07-07)
This study was conducted to evaluate block copolymers containing two different poly(ethyleneimine) (PEI) amounts, as new pH-sensitive micellar delivery systems for doxorubicin. Micelles were prepared with block copolymers consisting of poly(2-ethyl-2-oxazoline)-co-poly(ethyleneimine) (PEtOx-co-PEI) and poly(ε-caprolactone) (PCL) as hydrophilic and hydrophobic blocks...
A Sofia Silva et al.
International journal of pharmaceutics, 519(1-2), 240-249 (2017-01-24)
Functionalized gold nanoparticles (AuNPs) have been widely investigated as promising multifunctional nanosystems for the theragnosis of lung cancer, the most common and prominent cause of cancer death worldwide. Nevertheless, nanoparticles are not in appropriate sizes for an accurate deep lung...
Xiaoyou Qu et al.
Drug delivery, 25(1), 210-225 (2018-01-10)
To ensure that antitumor drugs can be effectively transported across intestinal barrier and then quickly released in tumor cells, mixed polymeric micelles (Mix-PMs) were designed and fabricated by combining poly(2-ethyl-2-oxazoline)-vitamin E succinate (PEOz-VES) with TPGS1000 for enhancing intestinal absorption of...
Synthesis of poly (2-ethyl-2-oxazoline)-b-poly (styrene) copolymers via a dual initiator route combining cationic ring-opening polymerization and atom transfer radical polymerization.
Becer CR, et al.
Macromolecules, 41(14), 5210-5215 (2008)
Huan Xu et al.
Pharmaceutical research, 31(11), 3038-3050 (2014-05-09)
A novel bifunctional liposome with long-circulating and pH-sensitive properties was constructed using poly(2-ethyl-oxazoline)-cholesteryl methyl carbonate (PEtOz-CHMC) in this study. PEtOz-CHMC was synthesized and characterized by TLC, IR and (1)H-NMR. The obtained PEtOz lipid was inserted into liposomes by the post-insertion...
Dishi Wang et al.
ACS applied materials & interfaces, 9(8), 6916-6930 (2017-02-12)
pH-responsive polymeric micelles have shown promise for the targeted and intracellular delivery of antitumor agents. The present study aimed to elucidate the possible mechanisms of pH-sensitivity and cellular internalization of PEOz-b-PLA micelles in detail, further unravel the effect of hydrophilic/hydrophobic...
Abbas Dadkhah Tehrani et al.
Carbohydrate polymers, 97(1), 98-104 (2013-06-19)
The cellulose nanocrystals, prepared by acid hydrolysis of cotton linter, consisted of slender rods with an average length of 173 nm and diameter of 80 nm, respectively. The surface of obtained cellulose nanocrystals was chemically modified using tosyl chloride and...
Yajie Gao et al.
Pharmaceutical research, 32(8), 2649-2662 (2015-02-14)
The purpose of the present study was to design and fabricate endosomal pH-sensitive dual-ligand-modified micellar nanoparticles to achieve enhanced drug delivery to tumor cells and facilitated intracellular drug release. End-group-carboxylated poly(2-ethyl-2-oxazoline)-poly(D,L-lactide) and cyclic Arg-Gly-Asp-Tyr-Lys- and anti-prostate specific membrane antigen antibody-modified...
Mohsen Salmanpour et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 136, 104941-104941 (2019-05-29)
SN-38 is the active metabolite of irinotecan, an FDA-approved chemotherapeutic agent indicated for colorectal carcinoma, which would not be clinically applicable due to its very poorly soluble and hydrolytic degradation properties. To overcome these limitations, it was proposed to conjugate...
Seiji Tsunega et al.
ChemPlusChem, 85(4), 619-626 (2020-04-03)
Systems that show circularly polarized luminescence (CPL) are usually constructed in one of two possible ways: either covalently binding the chiral moieties (usually organic compounds) to luminophores (inorganic or organic compounds) or associating the luminophores as guests with chiral hosts...
Yuanhang Zhou et al.
Biomaterials science, 8(18), 5029-5046 (2020-08-20)
Combination therapy has been proved to be an effective strategy to inhibit metastasis, however, its efficacy is always compromised by the poor delivery efficiency of drugs. In this study, multi pH-sensitive polymer-drug conjugate mixed micelles were fabricated by the self-assembly...
Bryn D Monnery et al.
International journal of pharmaceutics, 521(1-2), 249-258 (2017-02-25)
The mechanism of polycation cytotoxicity and the relationship to polymer molecular weight is poorly understood. To gain an insight into this important phenomenon a range of newly synthesised uniform (near monodisperse) linear polyethylenimines, commercially available poly(l-lysine)s and two commonly used...
Ziqi Wang et al.
Acta biomaterialia, 62, 144-156 (2017-08-27)
To concurrently suppress multidrug resistance (MDR) and metastasis of breast cancer cells, paclitaxel (PTX) and honokiol (HNK) were coencapsulated into pH-sensitive polymeric micelles based on poly(2-ethyl-2-oxazoline)-poly(d,l-lactide) (PEOz-PLA). The physicochemical properties of dual drug-loaded PEOz-PLA micelles were characterized in size, drug...
Shabnam Sattari et al.
International journal of biological macromolecules, 156, 1126-1134 (2019-11-22)
Although many techniques have been devoted to promote therapeutic purposes of drug carrier systems, however, there are still many challenges in this area. Here, we designed co-loaded delivery systems, composed of curcumin loaded cyclodextrin-graphene oxide core (Cur@CD-GO) and gallic acid...

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