18 results on '"Carsten Sinkel"'
Search Results
2. Data on synthesis of oligomeric and polymeric poly(butylene adipate-co-butylene terephthalate) model substrates for the investigation of enzymatic hydrolysis
- Author
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Veronika Perz, Klaus Bleymaier, Carsten Sinkel, Ulf Kueper, Melanie Bonnekessel, Doris Ribitsch, and Georg M. Guebitz
- Subjects
Computer applications to medicine. Medical informatics ,R858-859.7 ,Science (General) ,Q1-390 - Abstract
The aliphatic-aromatic copolyester poly(butylene adipate-co-butylene terephthalate) (PBAT), also known as ecoflex, contains adipic acid, 1,4-butanediol and terephthalic acid and is proven to be compostable [1–3]). We describe here data for the synthesis and analysis of poly(butylene adipate-co-butylene terephthalate variants with different adipic acid:terephatalic acid ratios and 6 oligomeric PBAT model substrates. Data for the synthesis of the following oligomeric model substrates are described: mono(4-hydroxybutyl) terephthalate (BTa), bis(4-(hexanoyloxy)butyl) terephthalate (HaBTaBHa), bis(4-(decanoyloxy)butyl) terephthalate (DaBTaBDa), bis(4-(tetradecanoyloxy)butyl) terephthalate (TdaBTaBTda), bis(4-hydroxyhexyl) terephthalate (HTaH) and bis(4-(benzoyloxy)butyl) terephthalate (BaBTaBBa). Polymeric PBAT variants were synthesized with adipic acid:terephatalic acid ratios of 100:0, 90:10, 80:20, 70:30, 60:40 and 50:50. These polymeric and oligomeric substances were used as ecoflex model substrates in enzymatic hydrolysis experiments in the article “Substrate specificities of cutinases on aliphatic-aromatic polyesters and on their model substrates” [4]. Keywords: Oligomer synthesis, Oligomer analysis, Polyester model substrates
- Published
- 2016
- Full Text
- View/download PDF
3. Biodegradation of poly(butylene succinate) in soil laboratory incubations assessed by stable carbon isotope labelling
- Author
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Taylor F, Nelson, Rebekka, Baumgartner, Madalina, Jaggi, Stefano M, Bernasconi, Glauco, Battagliarin, Carsten, Sinkel, Andreas, Künkel, Hans-Peter E, Kohler, Kristopher, McNeill, and Michael, Sander
- Subjects
Carbon Isotopes ,Soil ,Biodegradation, Environmental ,Polymers ,Isotope Labeling ,Polyesters ,Succinates ,Carbon Dioxide ,Butylene Glycols ,Plastics ,Carbon - Abstract
Using biodegradable instead of conventional plastics in agricultural applications promises to help overcome plastic pollution of agricultural soils. However, analytical limitations impede our understanding of plastic biodegradation in soils. Utilizing stable carbon isotope (
- Published
- 2021
4. Data on synthesis of oligomeric and polymeric poly(butylene adipate-co-butylene terephthalate) model substrates for the investigation of enzymatic hydrolysis
- Author
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Klaus Bleymaier, Doris Ribitsch, Ulf Kueper, Melanie Bonnekessel, Veronika Perz, Georg M. Guebitz, and Carsten Sinkel
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THF, tetrahydrofuran ,Substrate Specificities ,BaBTaBBa, bis(4-(benzoyloxy)butyl) terephthalate ,Ada, adipic acid ,Ta, terephthalic acid ,H, 1,6-hexanediol ,HTaH, bis(4-hydroxyhexyl) terephthalate ,02 engineering and technology ,010501 environmental sciences ,lcsh:Computer applications to medicine. Medical informatics ,TdaBTaBTda, bis(4-(tetradecanoyloxy)butyl) terephthalate ,01 natural sciences ,BTaB, bis(4-hydroxybutyl) terephthalate ,chemistry.chemical_compound ,Oligomer analysis ,Poly(butylene adipate-co-butylene terephthalate) ,Enzymatic hydrolysis ,Polymer chemistry ,DaBTaBDa, bis(4-(decanoyloxy)butyl) terephthalate ,Organic chemistry ,BTa, mono(4-hydroxybutyl) terephthalate ,lcsh:Science (General) ,Data Article ,0105 earth and related environmental sciences ,Terephthalic acid ,Multidisciplinary ,Adipic acid ,PBAT, (poly(butylene adipate-co-butylene terephthalate) ,Oligomer synthesis ,Da, decanoic acid ,021001 nanoscience & nanotechnology ,Polyester ,Ba, benzoic acid ,chemistry ,lcsh:R858-859.7 ,Polyester model substrates ,0210 nano-technology ,Ha, hexanoic acid ,HaBTaBHa, bis(4-(hexanoyloxy)butyl) terephthalate ,Tda, tetradecanoic acid ,lcsh:Q1-390 - Abstract
The aliphatic-aromatic copolyester poly(butylene adipate-co-butylene terephthalate) (PBAT), also known as ecoflex, contains adipic acid, 1,4-butanediol and terephthalic acid and is proven to be compostable [1–3]). We describe here data for the synthesis and analysis of poly(butylene adipate-co-butylene terephthalate variants with different adipic acid:terephatalic acid ratios and 6 oligomeric PBAT model substrates. Data for the synthesis of the following oligomeric model substrates are described: mono(4-hydroxybutyl) terephthalate (BTa), bis(4-(hexanoyloxy)butyl) terephthalate (HaBTaBHa), bis(4-(decanoyloxy)butyl) terephthalate (DaBTaBDa), bis(4-(tetradecanoyloxy)butyl) terephthalate (TdaBTaBTda), bis(4-hydroxyhexyl) terephthalate (HTaH) and bis(4-(benzoyloxy)butyl) terephthalate (BaBTaBBa). Polymeric PBAT variants were synthesized with adipic acid:terephatalic acid ratios of 100:0, 90:10, 80:20, 70:30, 60:40 and 50:50. These polymeric and oligomeric substances were used as ecoflex model substrates in enzymatic hydrolysis experiments in the article “Substrate specificities of cutinases on aliphatic-aromatic polyesters and on their model substrates” [4]. Keywords: Oligomer synthesis, Oligomer analysis, Polyester model substrates
- Published
- 2016
5. Substrate specificities of cutinases on aliphatic–aromatic polyesters and on their model substrates
- Author
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Melanie Bonnekessel, Klaus Bleymaier, Ulf Kueper, Veronika Perz, Georg M. Guebitz, Doris Ribitsch, and Carsten Sinkel
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0301 basic medicine ,Cutinase ,Polyesters ,Phthalic Acids ,Sordariales ,Bioengineering ,Biodegradable Plastics ,02 engineering and technology ,Substrate Specificity ,Fungal Proteins ,03 medical and health sciences ,chemistry.chemical_compound ,Hydrolysis ,Bacterial Proteins ,Enzymatic hydrolysis ,Polymer chemistry ,Transition Temperature ,Organic chemistry ,Molecular Biology ,Soil Microbiology ,Benzoic acid ,Terephthalic acid ,Adipic acid ,Polyethylene Terephthalates ,General Medicine ,021001 nanoscience & nanotechnology ,Actinobacteria ,Polyester ,Kinetics ,Phthalic acid ,Biodegradation, Environmental ,030104 developmental biology ,chemistry ,0210 nano-technology ,Carboxylic Ester Hydrolases ,Biotechnology - Abstract
The enzymatic hydrolysis of the biodegradable polyester ecoflex and of a variety of oligomeric and polymeric ecoflex model substrates was investigated. For this purpose, substrate specificities of two enzymes of typical compost inhabitants, namely a fungal cutinase from Humicola insolens (HiC) and a bacterial cutinase from Thermobifida cellulosilytica (Thc_Cut1) were compared. Model substrates were systematically designed with variations of the chain length of the alcohol and the acid as well as with varying content of the aromatic constituent terephthalic acid (Ta). HPLC/MS identification and quantification of the hydrolysis products terephthalic acid (Ta), benzoic acid (Ba), adipic acid (Ada), mono(4-hydroxybutyl) terephthalate (BTa), mono-(2-hydroxyethyl) terephthalate (ETa), mono-(6-hydroxyhexyl) terephthalate (HTa) and bis(4-hydroxybutyl) terephthalate (BTaB) indicated that these enzymes indeed hydrolyze the tested esters. Shorter terminal chain length acids but longer chain length alcohols in oligomeric model substrates were generally hydrolyzed more efficiently. Thc_Cut1 hydrolyzed aromatic ester bonds more efficiently than HiC resulting in up to 3-fold higher concentrations of the monomeric hydrolysis product Ta. Nevertheless, HiC exhibited a higher overall hydrolytic activity on the tested polyesters, resulting in 2-fold higher concentration of released molecules. Thermogravimetry and differential scanning calorimetry (TG-DSC) of the polymeric model substrates revealed a general trend that a lower difference between melting temperature (Tm) and the temperature at which the enzymatic degradation takes place resulted in higher susceptibility to enzymatic hydrolysis.
- Published
- 2016
6. An Esterase from Anaerobic Clostridium hathewayi Can Hydrolyze Aliphatic–Aromatic Polyesters
- Author
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Doris Ribitsch, Tea Pavkov-Keller, Veronika Perz, Altijana Hromic, Georg M. Guebitz, Ulf Kueper, Carsten Sinkel, Georg Steinkellner, Claudia Mayrhofer, Klaus Bleymaier, Sabine Zitzenbacher, Armin Zankel, Armin Baumschlager, Karl Gruber, and Katharina Schlegel
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0301 basic medicine ,Adipates ,Polyesters ,030106 microbiology ,Population ,Esterase ,Gene Expression Regulation, Enzymologic ,03 medical and health sciences ,chemistry.chemical_compound ,Bacterial Proteins ,Biogas ,Environmental Chemistry ,Organic chemistry ,education ,Clostridium ,Terephthalic acid ,Clostridium hathewayi ,education.field_of_study ,Esterases ,Gene Expression Regulation, Bacterial ,General Chemistry ,Biodegradation ,Polyester ,Biodegradation, Environmental ,030104 developmental biology ,chemistry ,Environmental Pollutants ,Anaerobic exercise - Abstract
Recently, a variety of biodegradable polymers have been developed as alternatives to recalcitrant materials. Although many studies on polyester biodegradability have focused on aerobic environments, there is much less known on biodegradation of polyesters in natural and artificial anaerobic habitats. Consequently, the potential of anaerobic biogas sludge to hydrolyze the synthetic compostable polyester PBAT (poly(butylene adipate-co-butylene terephthalate) was evaluated in this study. On the basis of reverse-phase high-performance liquid chromatography (RP-HPLC) analysis, accumulation of terephthalic acid (Ta) was observed in all anaerobic batches within the first 14 days. Thereafter, a decline of Ta was observed, which occurred presumably due to consumption by the microbial population. The esterase Chath_Est1 from the anaerobic risk 1 strain Clostridium hathewayi DSM-13479 was found to hydrolyze PBAT. Detailed characterization of this esterase including elucidation of the crystal structure was performed. The crystal structure indicates that Chath_Est1 belongs to the α/β-hydrolases family. This study gives a clear hint that also micro-organisms in anaerobic habitats can degrade manmade PBAT.
- Published
- 2016
7. Hydrolysis of synthetic polyesters byClostridium botulinumesterases
- Author
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Karl Gruber, Armin Baumschlager, Klaus Bleymaier, Veronika Perz, Altijana Hromic, Georg M. Guebitz, Ulf Küper, Doris Ribitsch, Georg Steinkellner, Sabine Zitzenbacher, Carsten Sinkel, Andrzej Łyskowski, and Andris Pairitsch
- Subjects
0301 basic medicine ,chemistry.chemical_classification ,biology ,Stereochemistry ,Active site ,Bioengineering ,medicine.disease_cause ,Applied Microbiology and Biotechnology ,Esterase ,Amino acid ,03 medical and health sciences ,Hydrolysis ,030104 developmental biology ,chemistry ,Hydrolase ,biology.protein ,medicine ,Organic chemistry ,Clostridium botulinum ,Enzyme kinetics ,Binding site ,Biotechnology - Abstract
Two novel esterases from the anaerobe Clostridium botulinum ATCC 3502 (Cbotu_EstA and Cbotu_EstB) were expressed in Escherichia coli BL21-Gold(DE3) and were found to hydrolyze the polyester poly(butylene adipate-co-butylene terephthalate) (PBAT). The active site residues (triad Ser, Asp, His) are present in both enzymes at the same location only with some amino acid variations near the active site at the surrounding of aspartate. Yet, Cbotu_EstA showed higher kcat values on para-nitrophenyl butyrate and para-nitrophenyl acetate and was considerably more active (sixfold) on PBAT. The entrance to the active site of the modeled Cbotu_EstB appears more narrowed compared to the crystal structure of Cbotu_EstA and the N-terminus is shorter which could explain its lower activity on PBAT. The Cbotu_EstA crystal structure consists of two regions that may act as movable cap domains and a zinc metal binding site.
- Published
- 2015
8. New Insights into the Ring-Opening Polymerization of β-Butyrolactone Catalyzed by Chromium(III) Salphen Complexes
- Author
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Carsten Sinkel, Alexander Kronast, Malte Winnacker, Peter Deglmann, Robert Loos, Bernhard Rieger, Peter T. Altenbuchner, and Sergei I. Vagin
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chemistry.chemical_classification ,Reaction mechanism ,Organic Chemistry ,chemistry.chemical_element ,Polymer ,Heterogeneous catalysis ,Ring-opening polymerization ,Catalysis ,Inorganic Chemistry ,Chromium ,chemistry ,Polymer chemistry ,Organic chemistry ,Physical and Theoretical Chemistry - Published
- 2015
9. Polymers, Biodegradable
- Author
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Gabriel Skupin, Andreas Künkel, Johannes Becker, Sebastian Koltzenburg, Jens Hamprecht, Lars Börger, Michael Bernhard Schick, Robert Loos, Motonori Yamamoto, Carsten Sinkel, and Katharina Schlegel
- Subjects
0301 basic medicine ,chemistry.chemical_classification ,03 medical and health sciences ,030104 developmental biology ,chemistry ,Polymer science ,Polymer ,010501 environmental sciences ,01 natural sciences ,0105 earth and related environmental sciences - Published
- 2016
10. Polymer-bound 4-methylcoumarin/1-heptanoyl-5-fluorouracil photodimers: NMR elucidation of dimer structure
- Author
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Seema Agarwal, Carsten Sinkel, Martin C. Schwarzer, Andreas Greiner, and Gernot Frenking
- Subjects
chemistry.chemical_classification ,Stereochemistry ,Dimer ,General Chemistry ,Nuclear magnetic resonance spectroscopy ,Polymer ,Prodrug ,Chromophore ,chemistry.chemical_compound ,chemistry ,Drug delivery ,Copolymer ,General Materials Science ,Two-dimensional nuclear magnetic resonance spectroscopy - Abstract
Heterodimers based on the polymer-bound chromophore 4-methylcoumarin and the prodrug 1-heptanoyl-5-fluorouracil, synthesized by photochemical [2 + 2]-cycloaddition are promising photoresponsive drug depots. Drug release experiments are one possibility to deliver proof of a successful reversible drug immobilization, whereas NMR spectroscopy is a potent tool for further structural characterization of these polymer-bound heterodimers. In case of the random copolymer poly(methyl methacrylate-co-7-(2′-methacryloyloxyethoxy)-4-methylcoumarin) three dimers have been identified of which the syn head-to-tail was the predominant one. In contrast, only the syn head-to-head dimer was formed in reasonable yield when the 4-methylcoumarin monofunctionalized pMMA was used as the base polymer. 1D and 2D NMR spectroscopic techniques combined with some theoretical calculations helped in successfully closing one major gap concerning polymer bound 4-methylcoumarin/1-heptanoyl-5-fluorouracil heterodimers that are of potential use in photoresponsive drug delivery devices. Copyright © 2011 John Wiley & Sons, Ltd.
- Published
- 2011
11. A Polymeric Drug Depot Based on 7-(2′-Methacryloyloxyethoxy)-4-methylcoumarin Copolymers for Photoinduced Release of 5-Fluorouracil Designed for the Treatment of Secondary Cataracts
- Author
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Carsten Sinkel, Andreas Greiner, and Seema Agarwal
- Subjects
chemistry.chemical_classification ,Polymers and Plastics ,Bulk polymerization ,Organic Chemistry ,technology, industry, and agriculture ,Polymer ,Condensed Matter Physics ,Miscibility ,chemistry.chemical_compound ,Monomer ,chemistry ,Polymer chemistry ,Materials Chemistry ,Copolymer ,Surface modification ,Polymer blend ,Physical and Theoretical Chemistry ,Drug carrier - Abstract
The synthesis of a polymeric, photoresponsive drug-delivery system on the basis of 4-methylcoumarin-side-chain-functionalized methacrylic copolymers with different degrees of functionalization is reported. Drug-release experiments in solution indicated a maximum release of 22 μg of 5-fluorouracil per 1 mg of polymer. Polymer analogous photochemical drug immobilization does not lead to observable intermolecular cross-linking. Miscibility experiments with PMMA suggest that the bulk polymerization of homogeneous, transparent polymer sheets for intraocular lens fabrication, using MMA as the matrix monomer and incorporating the polymer-drug conjugates as a functional component, is possible.
- Published
- 2010
12. Synthesis, characterization, and property evaluations of copolymers of diamantyl methacrylate with methyl methacrylate
- Author
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Natalie A. Fokina, Carsten Sinkel, Peter R. Schreiner, and Seema Agarwal
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Materials science ,Polymers and Plastics ,Radical polymerization ,General Chemistry ,Methacrylate ,Surfaces, Coatings and Films ,Methacryloyl chloride ,chemistry.chemical_compound ,Monomer ,chemistry ,Polymer chemistry ,Materials Chemistry ,Copolymer ,Thermal stability ,Methyl methacrylate ,Glass transition - Abstract
This work reports the homo- and copoly- merization behavior of previously unknown 4-diamantyl methacrylate (DMA) with vinyl comonomers like methyl methacrylate (MMA); the starting monomer DMA was synthesized in our laboratory using 4-diamantanol and methacryloyl chloride. The structures of the homo- and copolymers were analyzed using NMR techniques. DMA was found to be more reactive than MMA during copoly- merization. The reactivity ratios as determined by the Kelen-Tudos method are rMMA ¼ 0.58 and rDMA ¼ 1.75. The incorporation of a few mol % of diamantyl units into the PMMA backbone led to a significant increase in its thermal stability and glass transition temperature. The pol- ymers with 15 and 42 mol % of DMA units in the copoly- mers showed increased Tg values of 126 � C and 172 � C, respectively. V C 2009 Wiley Periodicals, Inc. J Appl Polym Sci 114: 2109-2115, 2009
- Published
- 2009
13. Synthesis, Characterization, and Properties Evaluation of Methylcoumarin End-Functionalized Poly(methyl methacrylate) for Photoinduced Drug Release
- Author
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Carsten Sinkel, Seema Agarwal, and Andreas Greiner
- Subjects
chemistry.chemical_classification ,Polymers and Plastics ,Chemistry ,Atom-transfer radical-polymerization ,Organic Chemistry ,Polymer ,Poly(methyl methacrylate) ,Inorganic Chemistry ,chemistry.chemical_compound ,End-group ,Bromide ,visual_art ,Polymer chemistry ,Materials Chemistry ,Benzophenone ,visual_art.visual_art_medium ,Methyl methacrylate ,Drug carrier - Abstract
The synthesis of novel methylcoumarin end-functionalized poly(methyl methacrylate) of different molecular weights using atom transfer radical polymerization (ATRP) is reported. 7-(2′-Bromoisobutyryloxy)-4-methylcoumarin was used as the ATRP initiator at 70 °C using copper(I) bromide/1,1,4,7,7-pentamethyldiethylenetriamine (PMDETA) as the catalyst system. The theoretical and experimental number-average molecular weights Mn with narrow polydispersities (Mw/Mn = 1.1−1.4) agreed very well. Photochemical drug loading of the methylcoumarin end-functionalized polymer was performed in solution (chloroform/acetone 1:2) with benzophenone as additional photosensitizer using a 50-fold excess of the pro-drug 1-heptanoyl-5-fluorouracil (H5FU). UV/vis and NMR spectroscopy were used for the characterization of the polymer drug conjugate and indicated an almost quantitative conversion of coumarin moieties into photodimers. The change of polymer properties like thermal stability, glass transition, and molecular weight afte...
- Published
- 2008
14. Hydrolysis of synthetic polyesters by Clostridium botulinum esterases
- Author
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Veronika, Perz, Armin, Baumschlager, Klaus, Bleymaier, Sabine, Zitzenbacher, Altijana, Hromic, Georg, Steinkellner, Andris, Pairitsch, Andrzej, Łyskowski, Karl, Gruber, Carsten, Sinkel, Ulf, Küper, Doris, Ribitsch, and Georg M, Guebitz
- Subjects
Models, Molecular ,Nitrophenols ,Butyrates ,Zinc ,Protein Conformation ,Catalytic Domain ,Hydrolysis ,Polyesters ,Clostridium botulinum ,Esterases ,Crystallography, X-Ray ,Substrate Specificity - Abstract
Two novel esterases from the anaerobe Clostridium botulinum ATCC 3502 (Cbotu_EstA and Cbotu_EstB) were expressed in Escherichia coli BL21-Gold(DE3) and were found to hydrolyze the polyester poly(butylene adipate-co-butylene terephthalate) (PBAT). The active site residues (triad Ser, Asp, His) are present in both enzymes at the same location only with some amino acid variations near the active site at the surrounding of aspartate. Yet, Cbotu_EstA showed higher kcat values on para-nitrophenyl butyrate and para-nitrophenyl acetate and was considerably more active (sixfold) on PBAT. The entrance to the active site of the modeled Cbotu_EstB appears more narrowed compared to the crystal structure of Cbotu_EstA and the N-terminus is shorter which could explain its lower activity on PBAT. The Cbotu_EstA crystal structure consists of two regions that may act as movable cap domains and a zinc metal binding site.
- Published
- 2015
15. Polymer-bound 4-methylcoumarin/1-heptanoyl-5-fluorouracil photodimers: NMR elucidation of dimer structure
- Author
-
Carsten, Sinkel, Martin C, Schwarzer, Gernot, Frenking, Andreas, Greiner, and Seema, Agarwal
- Abstract
Heterodimers based on the polymer-bound chromophore 4-methylcoumarin and the prodrug 1-heptanoyl-5-fluorouracil, synthesized by photochemical [2 + 2]-cycloaddition are promising photoresponsive drug depots. Drug release experiments are one possibility to deliver proof of a successful reversible drug immobilization, whereas NMR spectroscopy is a potent tool for further structural characterization of these polymer-bound heterodimers. In case of the random copolymer poly(methyl methacrylate-co-7-(2'-methacryloyloxyethoxy)-4-methylcoumarin) three dimers have been identified of which the syn head-to-tail was the predominant one. In contrast, only the syn head-to-head dimer was formed in reasonable yield when the 4-methylcoumarin monofunctionalized pMMA was used as the base polymer. 1D and 2D NMR spectroscopic techniques combined with some theoretical calculations helped in successfully closing one major gap concerning polymer bound 4-methylcoumarin/1-heptanoyl-5-fluorouracil heterodimers that are of potential use in photoresponsive drug delivery devices.
- Published
- 2010
16. 'Lock and key' control of optical properties in a push-pull system
- Author
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Jonathan G. Mehtala, Gouher Rabani, Graeme Cooke, Vincent M. Rotello, Michael A. Pollier, Carsten Sinkel, Stuart T. Caldwell, Yuval Ofir, Brian J. Jordan, Andrew Kennedy, and Steven Joubanian
- Subjects
Record locking ,Chemistry ,business.industry ,Metals and Alloys ,Analytical chemistry ,General Chemistry ,Flavin group ,Catalysis ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Absorbance ,Diamidopyridine ,Modulation ,Intramolecular force ,Materials Chemistry ,Ceramics and Composites ,Optoelectronics ,heterocyclic compounds ,business ,Push pull - Abstract
We report the modulation of the absorbance of a flavin push-pull derivative through specific recognition by a complementary diamidopyridine (DAP), shifting the flavin intramolecular charge transfer band by approximately 30 nm.
- Published
- 2008
17. Esterases from Clostridium are involved in anaerobic degradation of synthetic polyester
- Author
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Veronika Perz, Armin Baumschlager, Klaus Bleymaier, Andrzej Łyskowski, Altijana Hromic, Karl Gruber, Carsten Sinkel, Ulf Küper, Melanie Bonnekessel, Doris Ribitsch, and Georg Guebitz
- Subjects
Polyester ,Clostridium ,Biochemistry ,biology ,Chemistry ,Bioengineering ,General Medicine ,Anaerobic degradation ,biology.organism_classification ,Molecular Biology ,Biotechnology - Published
- 2014
18. ‘Lock and key’ control of optical properties in a push–pull system.
- Author
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Brian J. Jordan, Michael A. Pollier, Yuval Ofir, Steven Joubanian, Jonathan G. Mehtala, Carsten Sinkel, Stuart T. Caldwell, Andrew Kennedy, Gouher Rabani, Graeme Cooke, and Vincent M. Rotello
- Subjects
FLAVINS ,OPTICAL properties ,CHARGE transfer ,SCIENTIFIC experimentation - Abstract
We report the modulation of the absorbance of a flavin push–pull derivative through specific recognition by a complementary diamidopyridine (DAP), shifting the flavin intramolecular charge transfer band by ∼30 nm. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
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