Showing 1-30 of 104 results for "11630"
Antonelle Pardo et al.
Journal of chromatography. A, 1364, 128-139 (2014-09-10)
Molecularly imprinted polymers (MIPs) based on quercetin and synthesized by either bulk, precipitation or suspension polymerization were characterized in terms of size and shape by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). After a study of rebinding protocols...
John T Wilson et al.
The AAPS journal, 17(2), 358-369 (2014-12-17)
Protein-based vaccines offer a number of important advantages over organism-based vaccines but generally elicit poor CD8(+) T cell responses. We have previously demonstrated that pH-responsive, endosomolytic polymers can enhance protein antigen delivery to major histocompatibility complex class I (MHC-I) antigen...
Hazit Zayas et al.
Organic & biomolecular chemistry, 12(36), 6994-7003 (2014-06-17)
Six novel functional monomers: 4-(4-vinylphenyl)pyridine (M1), 4′-vinylbiphenyl-4-ol (M2), N,N-dimethyl-4′-vinylbiphenyl-3-amine (M3), (4′-vinylbiphenyl-4-yl)methanol (M4), 4′-vinylbiphenyl-4-carboxylic acid (M5) and 4-hydroxy-5-methyl-4′-vinylbiphenyl-3-carboxylic acid (M6), were examined for their ability to imprint theophylline (1). Using a molecular modelling-NMR titration approach, M2 and M6 were predicted to...
Abhishek Chauhan et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 985, 110-118 (2015-02-11)
Nano-sized molecularly imprinted polymer (nMIP) was synthesized through precipitation polymerization method and used it as solid phase extraction (SPE) sorbent for the selective and simultaneous extraction of hydroxylated metabolites of polycyclic aromatic hydrocarbons (PAHs) from urine followed by ultra-high performance...
K Shivaji Sharma et al.
Langmuir : the ACS journal of surfaces and colloids, 24(23), 13581-13590 (2008-11-05)
A novel class of nonionic amphipols (NAPols) designed to handle membrane proteins in aqueous solutions has been synthesized, and its solution properties have been examined. These were synthesized through free radical cotelomerization of glucose-based hydrophilic and amphiphilic monomers derived from...
Martina Miteva et al.
Biomaterials, 38, 97-107 (2014-12-03)
A series of endosomolytic mixed micelles was synthesized from two diblock polymers, poly[ethylene glycol-b-(dimethylaminoethyl methacrylate-co-propylacrylic acid-co-butyl methacrylate)] (PEG-b-pDPB) and poly[dimethylaminoethyl methacrylate-b-(dimethylaminoethyl methacrylate-co-propylacrylic acid-co-butyl methacrylate)] (pD-b-pDPB), and used to determine the impact of both surface PEG density and PEG molecular weight...
Lizhen Qiao et al.
Journal of chromatography. A, 1360, 240-247 (2014-08-19)
Glucaminium-based ionic liquids are a new class of recently developed ionic liquids and prepared by functionalizing the amine group of N-methyl-d-glucamine, which renders them good hydrophilicity due to the presence of the glucose structure and charged quaternary ammonium group. In...
Atsushi Mahara et al.
Journal of biomaterials science. Polymer edition, 25(14-15), 1590-1601 (2014-07-19)
We previously developed an antibody-conjugated cell rolling column that successfully separates stem cell subpopulations depending on the cell surface marker density, but a large amount of the injected cells were retained in the column because of non-specific interactions. In this...
Yoshinori Kadoma et al.
In vivo (Athens, Greece), 25(1), 49-53 (2011-02-02)
Melatonin shows antioxidant/prooxidant activity but its mechanism of action remains unknown. The radical-scavenging activity of melatonin and various melatonin/co-antioxidant mixtures in a 1:1 molar ratio was evaluated in terms of the length of the induction period (IP) for polymerization of...
Seyed Javad Ahmadi et al.
Journal of hazardous materials, 175(1-3), 193-197 (2009-11-03)
UO(2)(2+) ion-imprinted polymer materials used for solid-phase extraction were prepared by copolymerization of a ternary complex of uranyl ions with styrene and divinyl benzene in the presence of 2,2'-azobisisobutyronitrile. The imprinted particles were leached by HCl 6M. Various parameters in...
Marieta Constantin et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 62, 86-95 (2014-05-23)
A dual drug delivery system based on a "biosensor" (pH-sensitive unit) and a delivery component (thermosensitive hydrogel) was developed. The pH/thermosensitive hydrogel is able to restore the thermosensitive characteristics after electrostatic interaction of the pH-sensitive units with selected biologically active...
Idil Ipek Yilmaz et al.
Macromolecular rapid communications, 33(9), 856-862 (2012-04-21)
Polymers containing maleimide groups on their side chains have been synthesized by utilization of a novel styrenic monomer containing a masked-maleimide unit. AIBN initiated free radical polymerization and reverse addition-fragmentation chain transfer (RAFT) polymerization was utilized for synthesis of copolymers...
Xinjiong Ni et al.
Journal of chromatography. A, 1370, 263-269 (2014-12-03)
A novel polymeric micelle, formed by random copolymer poly (stearyl methacrylate-co-methacrylic acid) (P(SMA-co-MAA)) has been used as pseudostationary phase (PSP) in electrokinetic chromatography (EKC) for simultaneous and rapid determination of 11 kinds of water- and fat-soluble vitamins in this work....
Mahmoud Seifi et al.
International journal of pharmaceutics, 471(1-2), 37-44 (2014-05-06)
In the present work a series of tramadole imprinted micro- and nanoparticles were prepared and study their recognition properties. Methacrylic acid (MAA), as a functional monomer, ethylene glycol dimethacrylate (EGDMA) as a cross-linker and different solvents (chloroform, toluene and acetonitrile...
Virginia Bernabé-Zafón et al.
Electrophoresis, 30(21), 3748-3756 (2009-10-10)
Lauryl methacrylate (LMA)-ester based monolithic columns photo-polymerized using lauroyl peroxide (LPO) as initiator were prepared, and their morphological and CEC properties were studied. The composition of the polymerization mixture (i.e. ratios of monomers/porogenic solvents, 1,4-butanediol/1-propanol and LMA/crosslinker) was optimized. The...
Tu Liang et al.
Journal of chromatography. A, 1388, 110-118 (2015-03-03)
A diterpene glycoside compound, rebaudioside A (commonly abbreviated as RA), was immobilized onto porous silica surface through "thiol-ene" click chemistry strategy. The successful immobilization of the RA on the silica support was confirmed by FT-IR and elemental analysis. Chromatographic characteristics...
Mathieu Le Noir et al.
Journal of separation science, 32(9), 1471-1479 (2009-04-29)
Highly efficient removal of endocrine-disrupting compounds (EDCs) such as 17beta-estradiol (E2), 4-nonylphenol (NP) and atrazine from water was achieved using a novel macroporous adsorption medium. The medium consisted of a macroporous poly(vinyl alcohol) (PVA) cryogel with molecularly imprinted polymer (MIP)...
Kazutoshi Haraguchi et al.
Biomacromolecules, 15(6), 1992-2003 (2014-04-30)
Novel amphiphilic block copolymers composed of hydrophobic (poly(2-methoxyethyl acrylate): M) and hydrophilic (poly(N,N-dimethylacrylamide): D) segments were synthesized by living radical polymerization: a reversible addition-fragmentation chain-transfer polymerization. Two types of amphiphilic block copolymers, triblock (MDM) and 4-arm block ((MD)4) copolymers with...
Hai-Bo He et al.
Journal of chromatography. A, 1361, 23-33 (2014-08-31)
This paper reports a nanomagnetic polyhedral oligomeric silsesquioxanes (POSS)-directing strategy toward construction of molecularly imprinted hybrid materials for antibiotic residues determination in milk samples. The imprinted polymeric layer was facilely obtained through the copolymerization of active vinyl groups present on...
Shuwen Li et al.
Journal of hazardous materials, 229-230, 42-47 (2012-06-29)
The magnetic Ni nanoparticles functionalized water-soluble graphene sheets nanocomposites (Ni@GSs-C(CH(3))(2)COONa) were fabricated via a facile and mild strategy. We designed a simple and efficient approach (the addition of cyano radicals) to improve the water solubility of nanocomposites. The Ni@GSs-C(CH(3))(2)COONa nanocomposites...
Yulei Wang et al.
Analytica chimica acta, 840, 33-41 (2014-08-05)
In this work, a new stir cake sorptive extraction (SCSE) using polymeric ionic liquid monolith as sorbent was prepared. The sorbent was obtained by in situ copolymerization of an ionic liquid, 1-allyl-3-methylimidazolium bis[(trifluoro methyl)sulfonyl]imide (AMII) and divinylbenzene (DB) in the...
J A Redondo et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 90, 38-43 (2014-12-03)
In this work, the cationic monomer N-ethyl pyrrolidine methacrylamide (EPA) was copolymerized with the neutral monomer N-hydroxypropyl methacrylamide (HPMA) at different molar ratios obtaining linear random copolymers that were characterized and evaluated in vitro as non-viral gene carriers using murine...
Sachiro Kakinoki et al.
Acta biomaterialia, 13, 42-51 (2014-12-03)
Mechanotransduction in the regulation of cellular responses has been previously studied using elastic hydrogels. Because cells interact only with the surface of biomaterials, we are focusing on the molecular mobility at the outermost surface of biomaterials. In this study, surfaces...
Zhanpeng Zhang et al.
Advanced functional materials, 25(3), 350-360 (2015-06-13)
Injectable microspheres are attractive stem cell carriers for minimally invasive procedures. For tissue regeneration, the microspheres need to present the critical cues to properly direct stem cell differentiation. In natural extracellular matrix (ECM), growth factors (GFs) and collagen nanofibers provide...
Taher Alizadeh et al.
Analytica chimica acta, 843, 7-17 (2014-08-26)
In this study, a new strategy was proposed for the preparation of As (III)-imprinted polymer by using arsenic (methacrylate)3 as template. Precipitation polymerization was utilized to synthesize nano-sized As (III)-imprinted polymer. Methacrylic acid and ethylene glycol dimethacrylate were used as...
Rongbing Yang et al.
International journal of pharmaceutics, 427(2), 320-327 (2012-03-06)
A controlled drug delivery system fabricated from a thermoresponsive polymer was designed to obtain a pulsatile release profile which was triggered by altering the temperature of the dissolution medium. Two stages of release behaviour were found: fast release for a...
Katanchalee Mai-Ngam et al.
Carbohydrate polymers, 112, 440-447 (2014-08-19)
The synthesis of two comb-like dextran surfactant polymers, that are different in their dextran molecular weight (MW) distribution and the presence of carboxylic groups, and their characterization are reported. A bimodal carboxylic dextran surfactant polymer consists of poly(vinyl amine) (PVAm)...
Marwa Ahmed et al.
Chirality, 26(11), 754-763 (2014-03-08)
New affinity monolithic capillary columns of 150 µm internal diameter were prepared in situ fused glass capillary via either immobilization or encapsulation of Candida antarctica lipase B (CALB) on or within polymer monoliths, respectively. The immobilized lipase-based monoliths were prepared...
Henrik Kempe et al.
Pharmaceutical research, 32(2), 375-388 (2014-08-12)
To develop and evaluate molecularly imprinted nanocarriers for sustained release of erythromycin in physiological buffer media. Erythromycin-imprinted poly(methacrylic acid-co-trimethylolpropane trimethacrylate) nanocarriers and corresponding control nanocarriers were prepared by free-radical precipitation polymerization. The nanocarriers were characterized by transmission electron microscopy, dynamic...
Ali Nematollahzadeh et al.
Journal of chromatography. A, 1345, 154-163 (2014-05-03)
In the present work, we report a novel method for the reinforcement of hierarchically structured molecularly imprinted polymer (MIP) for the separation of human serum albumin (HSA) and immunoglobulin G (IgG) proteins under pressure driven flow conditions. The template proteins...

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