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Items: 1 to 20 of 161

1.

Disentangling eumelanin "black chromophore": visible absorption changes as signatures of oxidation state- and aggregation-dependent dynamic interactions in a model water-soluble 5,6-dihydroxyindole polymer.

Pezzella A, Iadonisi A, Valerio S, Panzella L, Napolitano A, Adinolfi M, d'Ischia M.

J Am Chem Soc. 2009 Oct 28;131(42):15270-5. doi: 10.1021/ja905162s.

PMID:
19919162
2.

Lack of visible chromophore development in the pulse radiolysis oxidation of 5,6-dihydroxyindole-2-carboxylic acid oligomers: DFT investigation and implications for eumelanin absorption properties.

Pezzella A, Panzella L, Crescenzi O, Napolitano A, Navaratnam S, Edge R, Land EJ, Barone V, d'Ischia M.

J Org Chem. 2009 May 15;74(10):3727-34. doi: 10.1021/jo900250v.

PMID:
19385623
3.

Eumelanin buildup on the nanoscale: aggregate growth/assembly and visible absorption development in biomimetic 5,6-dihydroxyindole polymerization.

Arzillo M, Mangiapia G, Pezzella A, Heenan RK, Radulescu A, Paduano L, d'Ischia M.

Biomacromolecules. 2012 Aug 13;13(8):2379-90. doi: 10.1021/bm3006159. Epub 2012 Jul 17.

PMID:
22651227
4.

5,6-Dihydroxyindole oxidation in phosphate buffer/polyvinyl alcohol: a new model system for studies of visible chromophore development in synthetic eumelanin polymers.

Pezzella A, Ambrogi V, Arzillo M, Napolitano A, Carfagna C, d'Ischia M.

Photochem Photobiol. 2010 May-Jun;86(3):533-7. doi: 10.1111/j.1751-1097.2010.00730.x. Epub 2010 Apr 16.

PMID:
20408984
5.

Intermolecular π-electron perturbations generate extrinsic visible contributions to eumelanin black chromophore in model polymers with interrupted interring conjugation.

Ascione L, Pezzella A, Ambrogi V, Carfagna C, d'Ischia M.

Photochem Photobiol. 2013 Mar-Apr;89(2):314-8. doi: 10.1111/php.12003. Epub 2012 Nov 2.

PMID:
23002723
6.

Bottom-up approach to eumelanin photoprotection: emission dynamics in parallel sets of water-soluble 5,6-dihydroxyindole-based model systems.

Corani A, Huijser A, Iadonisi A, Pezzella A, Sundström V, d'Ischia M.

J Phys Chem B. 2012 Nov 8;116(44):13151-8. doi: 10.1021/jp306436f. Epub 2012 Oct 29.

PMID:
23072413
7.

Ultrafast excited state dynamics of 5,6-dihydroxyindole, a key eumelanin building block: nonradiative decay mechanism.

Gauden M, Pezzella A, Panzella L, Napolitano A, d'Ischia M, Sundström V.

J Phys Chem B. 2009 Sep 17;113(37):12575-80. doi: 10.1021/jp903190k.

PMID:
19691267
8.

Effect of stacking and redox state on optical absorption spectra of melanins -- comparison of theoretical and experimental results.

Stark KB, Gallas JM, Zajac GW, Golab JT, Gidanian S, McIntire T, Farmer PJ.

J Phys Chem B. 2005 Feb 10;109(5):1970-7.

PMID:
16851181
9.

Time-resolved and steady-state fluorescence spectroscopy of eumelanin and indolic polymers.

Nighswander-Rempel SP, Mahadevan IB, Rubinsztein-Dunlop H, Meredith P.

Photochem Photobiol. 2007 Nov-Dec;83(6):1449-54.

PMID:
18028220
10.

Short-lived quinonoid species from 5,6-dihydroxyindole dimers en route to eumelanin polymers: integrated chemical, pulse radiolytic, and quantum mechanical investigation.

Pezzella A, Panzella L, Crescenzi O, Napolitano A, Navaratman S, Edge R, Land EJ, Barone V, d'Ischia M.

J Am Chem Soc. 2006 Dec 6;128(48):15490-8.

PMID:
17132016
11.
12.

Synthesis and polymerization studies of organic-soluble eumelanins.

Lawrie KJ, Meredith P, McGeary RP.

Photochem Photobiol. 2008 May-Jun;84(3):632-8. doi: 10.1111/j.1751-1097.2007.00295.x. Epub 2008 Feb 11.

PMID:
18282186
13.
14.

Artificial biomelanin: highly light-absorbing nano-sized eumelanin by biomimetic synthesis in chicken egg white.

della Vecchia NF, Cerruti P, Gentile G, Errico ME, Ambrogi V, D'Errico G, Longobardi S, Napolitano A, Paduano L, Carfagna C, d'Ischia M.

Biomacromolecules. 2014 Oct 13;15(10):3811-6. doi: 10.1021/bm501139h. Epub 2014 Sep 29.

PMID:
25224565
15.
16.

Exploring the frontiers of synthetic eumelanin polymers by high-resolution matrix-assisted laser/desorption ionization mass spectrometry.

Reale S, Crucianelli M, Pezzella A, d'Ischia M, De Angelis F.

J Mass Spectrom. 2012 Jan;47(1):49-53. doi: 10.1002/jms.2025.

PMID:
22282089
17.

Degree of polymerization of 5,6-dihydroxyindole-derived eumelanin from chemical degradation study.

Okuda H, Yoshino K, Wakamatsu K, Ito S, Sota T.

Pigment Cell Melanoma Res. 2014 Jul;27(4):664-7. doi: 10.1111/pcmr.12254. Epub 2014 May 12.

PMID:
24750564
18.

Solvochromic effects in model eumelanin compounds.

Nighswander-Rempel SP, Mahadevan IB, Bernhardt PV, Butcher J, Meredith P.

Photochem Photobiol. 2008 May-Jun;84(3):620-6. doi: 10.1111/j.1751-1097.2007.00290.x. Epub 2008 Feb 7.

PMID:
18266819
19.

Structural effects on the electronic absorption properties of 5,6-dihydroxyindole oligomers: the potential of an integrated experimental and DFT approach to model eumelanin optical properties.

d'Ischia M, Crescenzi O, Pezzella A, Arzillo M, Panzella L, Napolitano A, Barone V.

Photochem Photobiol. 2008 May-Jun;84(3):600-7. doi: 10.1111/j.1751-1097.2007.00249.x.

PMID:
18435616
20.

Onset of the Electronic Absorption Spectra of Isolated and π-Stacked Oligomers of 5,6-Dihydroxyindole: An Ab Initio Study of the Building Blocks of Eumelanin.

Tuna D, Udvarhelyi A, Sobolewski AL, Domcke W, Domratcheva T.

J Phys Chem B. 2016 Apr 14;120(14):3493-502. doi: 10.1021/acs.jpcb.6b01793. Epub 2016 Apr 5.

PMID:
27005558

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