Results 91 to 100 of about 169,076 (377)

Melanin's backups [PDF]

The Journal of Cell Biology, 2006
![][1] Tyrosinase dispersal (top) requires Rab32 (bottom). Sports teams and melanin-making cells follow the same strategy: they have substitutes in case a regular can't perform.
openaire   +2 more sources

Direct Laser Writing of Polymer Nanocomposites for Tunable Structural Color

Advanced Materials, EarlyView.
Herein, direct laser writing is used to polymerize self‐assembled nanocomposite materials. Using fabrication parameters, the interparticle spacing is finely tuned beyond the thermodynamically stable state. This is exploited to generate wide gamut structural color in water.
Teodora Faraone, Jing Qian, Srikanth Kolagatla, A. Louise Bradley, Larisa Florea, Colm Delaney   +5 more
wiley   +1 more source

Suppression of mycotoxins production and efficient chelation of heavy metals using natural melanin originated from Aspergillus flavus and Aspergillus carbonarius

BMC Biotechnology
Background This study employed melanin synthesized by Aspergillus flavus and Aspergillus carbonarius to inhibit the production of mycotoxins and bioremediation of heavy metals (HMs).
Nashwa El-Gazzar, Esraa Abdo, Gamal Rabie, Manal Tawfeek El-Sayed   +3 more
doaj   +1 more source

Characterization of melanin from Exophiala mesophila with the prospect of potential biotechnological applications

Frontiers in Fungal Biology
IntroducionFungal melanin is an underexplored natural biomaterial of great biotechnological interest in different areas. This study investigated the physical, chemical, electrochemical, and metal-binding properties of melanin extracted from the ...
Cristy Medina-Armijo, Cristy Medina-Armijo, Ibraheem Yousef, Antonio Berná, Anna Puerta, Abraham Esteve-Núñez, Marc Viñas, Francesc X. Prenafeta-Boldú   +7 more
doaj   +1 more source

Quantitative photoluminescence of broad band absorbing melanins: A procedure to correct for inner filter and re-absorption effects

, 2004
We report methods for correcting the photoluminescence emission and excitation spectra of highly absorbing samples for re-absorption and inner filter effects.
Forest, Gallas, Hecht, Hill, Jennifer Riesz, Joel Gilmore, Kollias, Lakowicz, McGuiness, Menon, Meredith, Mosca, Nofsinger, Paul Meredith, Prota, Stark, Taylor, Teuchner, Vitkin, Williams   +19 more
core   +1 more source

Depigmented wing patch size is a condition-dependent indicator of viability in male collared flycatchers [PDF]

, 2003
Honesty of sexual advertisement is thought to be the result of signalling costs. Because production costs of depigmented plumage patches are probably very low, their role as honest signals of individual quality has been questioned. Costs of bearing these
Garamszegi, László Zsolt, Hegyi, Gergely, Török, János   +2 more
core   +1 more source

Recognition of DHN-melanin by MelLec, is required for protective immunity to Aspergillus

Nature, 2018
Resistance to infection is critically dependent on the ability of pattern recognition receptors to recognize microbial invasion and induce protective immune responses.
M. Stappers, Alexandra E. Clark, V. Aimanianda, Stefan Bidula, Delyth M. Reid, P. Asamaphan, S. Hardison, I. Dambuza, I. Valsecchi, B. Kerscher, Anthony Plato, C. Wallace, R. Yuecel, Betty Hebecker, Maria da Glória Teixeira Sousa, C. Cunha, Yan Liu, T. Feizi, A. Brakhage, K. Kwon-Chung, N. Gow, M. Zanda, M. Piras, C. Zanato, M. Jaeger, M. Netea, F. L. van de Veerdonk, J. Lacerda, António Campos, A. Carvalho, J. Willment, J. Latgé, Gordon D. Brown   +32 more
semanticscholar   +1 more source

Effect of Nanoparticle Distribution on Photothermal Absorption in Binary Mixtures of Colloidal Supraballs

Advanced Photonics Research, EarlyView.
This work combines molecular dynamics and finite‐difference time‐domain computational approaches to study the photothermal properties of melanin nanoparticle–based supra‐assemblies. Based on the results of this study, the binary mixtures of melanin and silica with higher concentrations of melanin and with more segregated levels of mixing are able to ...
Hanieh Mohsenzadeh Hedeshi, Anvay Patil, Christian M. Heil, Nitant Gupta, Shahrzad Dehghani, Arthi Jayaraman, Ali Dhinojwala   +6 more
wiley   +1 more source

Role of Melanin Chemiexcitation in Melanoma Progression and Drug Resistance

Frontiers in Oncology, 2020
Melanoma is the deadliest type of skin cancer. Human melanomas often show hyperactivity of nitric oxide synthase (NOS) and NADPH oxidase (NOX), which, respectively, generate nitric oxide (NO·) and superoxide (O2·−).
Sanjay Premi
doaj   +1 more source

Monte Carlo Analysis of Optical Interactions in Reflectance and Transmittance Finger Photoplethysmography [PDF]

, 2019
Photoplethysmography (PPG) is a non-invasive photometric technique that measures the volume changes in arterial blood. Recent studies have reported limitations in developing and optimising PPG-based sensing technologies due to unavailability of the ...
Anatomy, Bashkatov, Budidha, Gosling, Jacques, Lapeyre, Marks, Moyle, Panayiotis Kyriacou, Rushambwa, Subhasri Chatterjee, Tuchin, Tuchin, Webster   +13 more
core   +1 more source