Results 81 to 90 of about 7,289 (188)

"Black gold" - melanins in human life [PDF]

, 2016
Melaniny to ogólna nazwa grupy wielkocząsteczkowych barwników odpowiedzialnych za ciemną pigmentację organizmów. Powstają w wyniku oksydacyjnej polimeryzacji związków fenolowych i indolowych.
Lisiecki, Sławomir, Łopusiewicz, Łukasz   +1 more
core  

Potassium ion-mediated synthesis of highly water-soluble dendritically functionalized melanins

, 2014
A series of melanin derivatives has been prepared by functionalization with dendritic azobenzene molecules under basic conditions with (K 2CO3) and without (Et3N) a potassium ion.
Wang, Qun, Cheung, Po Ling, Yu, Jimmy C., Lee, Siu Fung, Wong, Ka Wai, Chan, Donald Ka Long, Ong, Beng S., Leung, Ken Cham Fai   +7 more
core   +1 more source

Isolation, characterization and assessment of the photoprotective effect of two fungal melanins

, 2013
Melanins are a diverse group of pigmented biopolymers present in living organisms at all phylogenetic levels. Properties such as light scattering and absorption through a wide range of wavelengths, and scavenging of free radicals are common to all ...
Olaizola, Carolina
core   +1 more source

THE BASOPHILIA OF MELANINS [PDF]

Journal of Histochemistry & Cytochemistry, 1955
openaire   +2 more sources

Microscopy-based Raman spectroscopy of fungal melanins in a genetically amenable ascomycete

, 2017
Fungal melanins are distinctive markers of rock-inhabiting ascomycetes. These complex polyphenols play important roles in stress tolerance while being essential components of fungal cell walls and useful biomarkers.
Breitenbach, Romy, Knabe, Nicole
core  

MelC tyrosinase-dependent enzymatic synthesis of functional melanins from phenolic monomers. [PDF]

J Biol Eng
Krishnan N, Devi KM, Yeo CS, Choi KY.
europepmc   +1 more source

Characterizing excited triplet states of synthetic eumelanin and pheomelanin by the application of selected diene probes. [PDF]

Sci Rep
Mokrzyński K, Szewczyk G, Sarna T.
europepmc   +1 more source

Effects of synthetic dopamine-melanins on oxygen radical formation induced by metal ions with dopamine.

, 2001
To understand the possible physiological roles of the neuromelanins, we examined effects of synthetic dopamine-melanins on oxygen radical formation by metal ions with dopamine. Oxygen radical formation was detected by DNA cleavage analysis.
白石 久二雄, 426996, 426997, 426994, 426995, 426992, 426993, Okabe, Masashi, 426990, Shiraishi, Kunio, 426991, 木村 真三, Saito, Takeshi, Kimura, Shinzo, 426989, Hosokawa, Toshiyuki, Niioka, Tadashi, 426998, Kurasaki, Masaaki, Ito, Keizo   +19 more
core  

Zn²⁺-induced electronic polarization and local reactivity in melanin-like dopamine oligomers: a DFT study. [PDF]

J Mol Model
Dionizio JP, Souza-Silva HR, Teixeira JVU, Gomes OP, Bégué D, Lisboa-Filho PN, Batagin-Neto A.   +6 more
europepmc   +1 more source

Unraveling UVA1-Induced Photomodifications of Eumelanin and Pheomelanin in Human Skin: Insights into Pigment Darkening. [PDF]

Int J Mol Sci
Ito S, Sok J, Nakanishi Y, Wakamatsu K, Del Bino S.   +4 more
europepmc   +1 more source