Results 71 to 80 of about 169,076 (377)
Electrochemical synthesis of melanin-like polyindolequinone [PDF]
, 2006 Conducting polymer is a rapidly developing area of research due to its potential in combining the physical properties of polymers with electrical properties previously found only in inorganic systems. These conducting polymers owe their unique properties
Subianto, Surya
core +1 more source
Nanomorphology of the blue iridescent wings of a giant tropical wasp, "Megascolia procer javanensis" (Hymenoptera) [PDF]
, 2008 The wings of the giant wasp "Megascolia Procer Javanensis" are opaque and iridescent. The origin of the blue-green iridescence is studied in detail, using reflection spectroscopy, scanning electron microscopy and physical modelling.
Rassart, Marie +3 more
core +2 more sources
Fluorescent quantification of melanin [PDF]
Pigment Cell & Melanoma Research, 2016 SummaryMelanin quantification is reportedly performed by absorption spectroscopy, commonly at 405 nm. Here, we propose the implementation of fluorescence spectroscopy for melanin assessment. In a typical in vitro assay to assess melanin production in response to an external stimulus, absorption spectroscopy clearly overvalues melanin content.
Fernandes, Bruno Pacheco +4 more
openaire +4 more sources
Advanced Materials, EarlyView.Upconversion nanoparticle‐covalent organic framework core–shell particles provide enhanced contrast for optoacoustic imaging by leveraging the optical absorption of upconversion luminescence within the covalent organic framework matrix. Beyond their role as contrast agents, these particles enable customizable therapeutic agent loading and release, as ...
Dong Wook Kim +8 more
wiley +1 more source
Genetic validation and spectroscopic detailing of DHN-melanin extracted from an environmental fungus
Biochemistry and Biophysics Reports, 2017 Accurate characterization of melanin using analytical methodologies has proved to be difficult due to its heterogeneity, insolubility in wide pH and broad range of solvents.
Nitya Meenakshi Raman, Suganthi Ramasamy
doaj +1 more source
Journal of Advanced Pharmaceutical Technology & Research, 2022 To extract the melanin pigment from marine microbes and their biological potential, the present study was done. Isolation and identification of the melanin-producing Nocardiopsis sp. were obtained from the sediment samples. Zone of inhibition and minimal
R Sundar, Pitchiah Sivaperumal
doaj +1 more source
Spontaneous melanotic lesions in axillary seabream, Pagellus acarne (Risso) [PDF]
, 2013 In this paper, we describe spontaneous melanotic lesions in the skin of axillary seabream, Pagellus acarne (Risso) from a defined area of the Portuguese Coast, located in Cabo da Roca and Foz do Arelho.
Branco, Sandra, Ramos, Paula, Victor, P
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Photonic Nanomaterials for Wearable Health Solutions
Advanced Materials, EarlyView.This review discusses the fundamentals and applications of photonic nanomaterials in wearable health technologies. It covers light‐matter interactions, synthesis, and functionalization strategies, device assembly, and sensing capabilities. Applications include skin patches and contact lenses for diagnostics and therapy. Future perspectives emphasize AI‐
Taewoong Park +3 more
wiley +1 more source
Pigment Melanin: Pattern for Iris Recognition
, 2009 Recognition of iris based on Visible Light (VL) imaging is a difficult problem because of the light reflection from the cornea. Nonetheless, pigment melanin provides a rich feature source in VL, unavailable in Near-Infrared (NIR) imaging.
Araabi, Babak N. +2 more
core +1 more source
Harnessing Photo‐Energy Conversion in Nanomaterials for Precision Theranostics
Advanced Materials, EarlyView.Harnessing photo‐energy conversion in nanomaterials enables precision theranostics through light‐driven mechanisms such as photoluminescence, photothermal, photoelectric, photoacoustic, photo‐triggered surface‐enhanced Raman scattering (SERS), and photodynamic processes. This review explores six fundamental principles of photo‐energy conversion, recent
Jingyu Shi +4 more
wiley +1 more source