![]() ![]() Hermanson GT (ed) (1995) Bioconjugate Techniques. Sabanayagam CR, Smith CL, Cantor CR (2000) Nucleic Acids Res 28:e33, ii–iv between the dextran and the carrier surface are formed by a photolinker. Reichmuth P, Sigrist H, Badertscher M, Morf WE, de Rooij NF, Pretsch E (2002) Bioconjug Chem 13:90–96 Hydroxyl groups on the oxide surfaces are reacted with a metal reagent complex. Sutthira Sutthasupa reported the synthesis of amino acid-based norbornene block copolymer with ester and carboxyl. Finally, photolytic cleavage of the resin (XIII). Sigrist H, Collioud A, Clemence J-F, Gao H, Luginbuehl R, Saenger M, Sundarababu G (1995) Opt Eng (Bellingham, Washington) 34:2339–2348 O’Reilly group synthesized the amino acid-based chiral amphiphilic block copolymers using RAFT technique, and elucidated its self-assembly into spherical micelles with optically active hydrophobic core. dimethoxytritylated at the aliphatic hydroxyl and attached through the phenol. Haynes CA, Norde W (1995) J Colloid Interface Sci 169:313–328īuijs J, Norde W, Lichtenbelt JWT (1996) Langmuir 12:1605–1613Ĭhevrier D, Rasmussen SR, Guesdon J (1993) Mol Cell Probes 7:187–197 Wessa T, Rapp M, Sigrist H (1999) Colloids Surf B Biointerfaces 15:139–146 For this study DNA oligonucleotides were chosen as a model system of biomolecular probes, and fluorescence detection of DNA microarrays served as method of detection. The photolabile crosslinker was added to MeHA-RGD-TBA via esterification of the primary hydroxyl groups on the polymer (Scheme S3). The adhesive peptide ligand with sequence GCGYGRGDSPG. ![]() Of all photolinkers and substrates tested, PTD as photolinker and COC as substrate showed the highest photolinking efficiencies and fastest reaction times. hydroxyethyl photolinker precursor (4-4-(1-hydroxyethyl)-2-methoxy-5-nitrophenoxybutyric acid) was obtained from Advanced Chemtech. We compared the overall photolinking efficiency of all photolinkers with respect to the polymer substrate they are applied to, and we found considerable differences for certain photolinker/substrate combinations. The influence of substrate material is discussed, and three different polymers served as representative substrates: poly(methyl methacrylate) (PMMA), polystyrene (PS), and a cycloolefin copolymer (COC). The influence of these variables are investigated for four prominent photolinkers: ketyl-reactive benzophenone (BP) and anthraquinone (AQ), nitrene-reactive nitrophenyl azide (NPA), and carbene-reactive phenyl-(trifluoromethyl)diazirine (PTD). This study addresses the selection of photolinker and the adjustment of reaction conditions, such as the concentration of biomolecule applied, and irradiation time. The use of photolinkers (photoactivatable heterobifunctional crosslinkers) is a popular method to attach biomolecules to polymer surfaces. ![]()
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