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Showing 1-18 of 18 results for "14501" within Papers
N P Desai et al.
Journal of microencapsulation, 17(6), 677-690 (2000-11-04)
A mixture of alginate and polyethylene glycol acrylate was investigated as a system for the encapsulation of islets of Langerhans. This system showed dual crosslinkability: the alginate was ionically crosslinked by multivalent cations, and the PEG was covalently crosslinked by
Joseph Deere et al.
Langmuir : the ACS journal of surfaces and colloids, 24(20), 11762-11769 (2008-09-27)
The use of alpha-chymotrypsin to cleave covalently bound N-acetyl- l-tryptophan (Ac-Trp-OH) from the surfaces of aminopropylated controlled pore glass (CPG) and the polymer PEGA 1,900 was investigated. Oligoglycine spacer chains were used to present the covalently attached Ac-Trp-OH substrate to
Eric Schopf et al.
Chemical communications (Cambridge, England), (32)(32), 4818-4820 (2009-08-05)
A pyrene-functionalized polymer was patterned via electron beam lithography onto a silicon wafer and shown to selectively bind with carbon nanotubes.
Naoki Yamamoto et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 13(2), 613-625 (2006-09-16)
This paper describes synthesis of asparagine-linked sialylglycopeptides. The typical feature of our strategy for the synthesis of a sialylglycopeptide is to employ undecadisialyloligosaccharyl Fmoc-asparagine (Fmoc-Asn(CHO)-OH) 1 without protecting groups on its hydroxyl groups except for the benzyl ester of the
K Kawasaki et al.
Chemical & pharmaceutical bulletin, 43(12), 2133-2138 (1995-12-01)
Hybrids of fibronectin-related peptides [Arg-Gly-Asp (RGD), Arg-Gly-Asp-Ser (RGDS)] and poly(ethylene glycol) (PEG) were prepared and their inhibitory effects on experimental metastasis in mice were examined. The inhibitory effect of RGD was markedly potentiated by hybrid formation with poly(ethylene glycol) #6000.
Alessandra Basso et al.
Chemical communications (Cambridge, England), (11)(11), 1296-1297 (2003-06-18)
PEGA supports functionalised with permanent charges show superior swelling properties in aqueous media when compared to neutral PEGA; a novel positively charged PEGA resin significantly improves penicillin G amidase (PGA) catalysed biotransformation on solid support, by favouring accessibility of the
Cara E Humphrey et al.
Journal of the American Chemical Society, 125(46), 13952-13953 (2003-11-13)
The lipase-catalyzed kinetic resolution of (R/S)-3-phenylbutyric acid 2 using solid-supported cyclohexane-1,3-dione (CHD) 6 is described. In each case the predominant enantiomer observed, after cleavage from the resin, was (R)-(-)-3-phenylbutyric acid (R)-2 (ee > 99%) rather than the expected (S)-enantiomer of
Nian-Huan Yao et al.
Journal of combinatorial chemistry, 7(1), 123-129 (2005-01-11)
The molecular target of vancomycin, a commonly used glycopeptide antibiotic, is the D-Ala-D-Ala dipeptide subunit on the bacterial cell wall. The molecular basis of interaction between vancomycin and D-Ala-D-Ala in solution is well-known. However, there is no structural data on
Emmanuelle Bays et al.
Biomacromolecules, 10(7), 1777-1781 (2009-06-10)
Maleimide end functionalized polymers for site-selective conjugation to free cysteines of proteins were synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization. A furan-protected maleimide chain transfer agent (CTA) was employed in the RAFT polymerization of poly(ethylene glycol) methyl ether acrylate
Urrotigoity, M. and Souppe, J.
Biocatalysis, 2, 145-145 (1989)
C S Lee et al.
Artificial organs, 21(9), 1002-1006 (1997-09-01)
Various modifications of alginate-poly-L-lysine microcapsules were made, such as the inclusion of polyethylenimine (PEI) or carboxyl methyl cellulose (CMC) in the core and the coating of bis(polyoxyethylene bis[amine]) (PEGA) onto the microcapsule membrane surface. A characterization of the modified microcapsules
Gaëlle-Anne Cremer et al.
Journal of peptide science : an official publication of the European Peptide Society, 12(6), 437-442 (2006-01-25)
This paper describes the optimization of a synthesis of a difficult sequence related to a 12-mer sequence of a Pan DR epitope (PADRE). Elongation was followed by on-line monitoring of the N(alpha)-Fmoc removal adapted for the batch methodology. Studying the
Alison G Patrick et al.
Macromolecular bioscience, 10(10), 1184-1193 (2010-07-02)
The design of hydrogels that simultaneously report protease activity and remove excess protease from solution is elucidated. The hydrogels, based on amino-PEGA, combine enzyme-specific peptides flanked with FRET complimented by charged amino acid residues that facilitate protease uptake via short
Stephen J Connon et al.
Bioorganic & medicinal chemistry letters, 12(14), 1873-1876 (2002-06-28)
The synthesis and olefin metathesis activity in protic solvents of 7, a phosphine-free ruthenium alkylidene bound to a hydrophilic solid support are reported. This heterogeneous catalyst promotes relatively efficient ring closing- and cross-metathesis reactions in both methanol and water. The
S Leon et al.
Bioorganic & medicinal chemistry letters, 8(21), 2997-3002 (1999-01-05)
TentaGel, ArgoGel and PEGA resins were evaluated for on-bead biological screening, using a fluorescently-labelled peptide attached to each and assayed for papain activity. Peptide attached to PEGA was cleaved in near quantitative yield at the expected sites, whilst an identical
Phaedria M St Hilaire et al.
Journal of medicinal chemistry, 45(10), 1971-1982 (2002-05-03)
A one-bead-two-compound inhibitor library was synthesized by the split-mix method for the identification of inhibitors of a recombinant cysteine protease from Leishmania mexicana, CPB2.8DeltaCTE. The inhibitor library was composed of octapeptides with a centrally located reduced bond introduced by reductive
Takahiko Matsushita et al.
The Journal of organic chemistry, 71(8), 3051-3063 (2006-04-08)
A MUC1-related glycopeptide having five core-2 hexasaccharide branches (C330H527N46O207, MW = 8450.9) was synthesized by a new strategy using a combination of microwave-assisted solid-phase synthesis (MA-SPGS) and enzymatic sugar elongation. Synthesis of a key glycopeptide intermediate was best achieved in
L Kelemen et al.
Lab on a chip, 19(11), 1985-1990 (2019-05-03)
Whispering gallery mode (WGM) resonators are promising optical structures for microfluidic label-free biosensors mainly due to their high sensitivity, but from a practical point of view they present numerous constraints that make their use in real laboratory diagnosis application difficult.
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