Results 21 to 30 of about 3,358,836 (338)

Identification of a Red Pigment-Producing Strain of Arthrobacter spp. and the Stability of Its Pigments

open access: yesMicroorganisms
With the rise of environmental protection and health topics in recent years, microbial production of red pigments has gradually become a research hotspot. Red pigment possesses biological properties such as anticancer and antioxidant activities and has a
Jinjun Wang, Mingliang Yang, Xinru Gao
doaj   +4 more sources

Identification of widely conserved biosynthetic gene cluster involved in pigment production of Bacillus subtilis

open access: yesmSystems
Bacillus subtilis is widely studied in the microbial secondary metabolite (SM) field due to its rich variety of important natural products and genetic tractability. We report a pigment observed in B. subtilis soil isolate MB9_B4 on certain media.
Rune Overlund Stannius   +6 more
doaj   +3 more sources

Identification of Pigment Cell Antigens Defined by Vitiligo Antibodies

open access: yesJournal of Investigative Dermatology, 1992
Patients with vitiligo have circulating antibodies to pigment cells. To characterize this response further and to identify the antigens defined by vitiligo antibodies, sera of 23 patients with vitiligo and 22 patients with unrelated conditions were ...
Harning, Ronald   +3 more
core   +3 more sources

COMPUTER-ASSISTED PIGMENT IDENTIFICATION IN ARTWORKS

open access: yes, 2007
False-color infrared represents a well known method for non-invasive pigment identification in artworks. This is particularly useful in the field of conservation of cultural heritage as it provides useful information about painting materials, techniques,
Rocco Mazzeo   +10 more
core   +3 more sources

Paul Delvaux: The Study of Nine Paintings by Non-Invasive Methods

open access: yesHeritage, 2023
Paul Delvaux (1897–1994) was a Belgian Surrealist painter known for his dreamlike and enigmatic compositions. His works often featured nude or semi-nude women and deserted urban landscapes, evoking a sense of mystery and intrigue.
Edène Derzelle   +5 more
doaj   +1 more source

An Introduction to the Electron Paramagnetic Resonance Spectral Library of Pigments

open access: yesHeritage, 2022
A library cataloguing the electron paramagnetic resonance (EPR) spectra of artists’ pigments has been created. It contains spectral data collected using several spectrometers that operate at different frequencies for, currently, 51 pigments.
Olivia R. Kuzio, Joseph P. Hornak
doaj   +1 more source

Low-Cost Multispectral System Design for Pigment Analysis in Works of Art

open access: yesSensors, 2021
To better understand and preserve works of art, knowledge is needed about the pigments used to create the artwork. Various noninvasive techniques have been used previously to create pigment maps, such as combining X-ray fluorescence and hyperspectral ...
Tania Kleynhans   +3 more
doaj   +1 more source

Review on Analysis Methods Enabled by Hyperspectral Imaging for Cultural Relic Conservation

open access: yesPhotonics, 2023
In this review, the conservation methods for various types of cultural relics enabled by hyperspectral imaging are summarized, and the hyperspectral cameras and techniques utilized in the process from data acquisition to analyzation are introduced ...
Zhongming Pei, Yong Mao Huang, Ting Zhou
doaj   +1 more source

Identification of a synergistic interaction between endothelial cells and retinal pigment epithelium [PDF]

open access: goldJournal of Cellular and Molecular Medicine, 2017
The retinal pigment epithelium located between the neurosensory retina and the choroidal vasculature is critical for the function and maintenance of both the photoreceptors and underlying capillary endothelium.
Carrie Spencer   +3 more
openalex   +2 more sources

The Importance of Preventive Analysis in Heritage Science: MA-XRF Supporting the Restoration of Madonna with Child by Mantegna

open access: yesApplied Sciences, 2023
The Madonna with Child by Andrea Mantegna owned by the Museo Poldi Pezzoli in Milan is painted on canvas with an unusual distemper technique. During the period of 1863–1865, the painting was restored by Giuseppe Molteni.
Anna Mazzinghi   +6 more
doaj   +1 more source

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