Results 31 to 40 of about 128,823 (315)

Correlation of Visible Reflectance Spectrometry and Portable Raman Data for Red Pigment Identification

Heritage
The accurate identification of pigments is of principal relevance in the field of cultural heritage conservation and restoration practices. In this preliminary study, a first attempt to set up a procedure for accurate red pigment identification, based on
Anna M. Gueli, Rosaria Galvagno, Adriana Incardona, Eleonora Pappalardo, Giuseppe Politi, Giuseppe Paladini, Giuseppe Stella   +6 more
doaj   +1 more source

HPLC-DAD-ESI/MS Identification of Light Harvesting and Light Screening Pigments in the Lake Sediments at Edmonson Point

The Scientific World Journal, 2013
The composition of sedimentary pigments in the Antarctic lake at Edmonson Point has been investigated and compared with the aim to provide a useful analytical method for pigments separation and identification, providing reference data for future ...
Rita Giovannetti, Leila Alibabaei, Marco Zannotti, Stefano Ferraro, Laura Petetta   +4 more
doaj   +1 more source

Characterization of carotenoid pigments from bacterial symbionts of soft-coral Sarcophyton sp. from North Java Sea

International Aquatic Research, 2017
Marine bacteria produce natural pigments; however, the ability of marine bacterial symbionts to produce natural pigments has been less studied. Marine bacteria associated with soft-coral Sarcophyton sp. collected from Karimunjawa Island were successfully
Lia Kusmita, Erlita Verdia Mutiara, Handung Nuryadi, Petrick Ariska Pratama, Awang Surya Wiguna, Ocky Karna Radjasa   +5 more
doaj   +1 more source

Breaking down banners: analytical approaches to determining the materials of painted banners [PDF]

, 2016
Background: This paper investigates a range of analytical techniques to yield information about the materials and processes used in making painted banners.
Hermens, E., Smith, M.J., Thompson, K.
core   +2 more sources

Evidence of late Quaternary environmental change in a continental east Antarctic lake from lacustrine sedimentary pigment distributions [PDF]

, 2005
A sediment core from Progress Lake, one of the oldest lacustrine sequences in East Antarctica, contains distinct zones dating from a previous interglacial (most likely Marine Isotope Stage 5e, c.
Hodgson, D A, Keely, B J, Squier, A H
core   +2 more sources

Spinochrome Identification and Quantification in Pacific Sea Urchin Shells, Coelomic Fluid and Eggs Using HPLC-DAD-MS

Marine Drugs, 2021
The high-performance liquid chromatography method coupled with diode array and mass spectrometric detector (HPLC-DAD-MS) method for quinonoid pigment identification and quantification in sea urchin samples was developed and validated. The composition and
Elena A. Vasileva, Natalia P. Mishchenko, Van T. T. Tran, Hieu M. N. Vo, Sergey A. Fedoreyev   +4 more
doaj   +1 more source

Combined photoluminescence and Raman microscopy for the identification of modern pigments: explanatory examples on cross-sections from Russian avant-garde paintings

Heritage Science, 2019
In conservation science, the identification of painting materials is fundamental for the study of artists’ palettes, for dating and for understanding on-going degradation phenomena.
Alessia Artesani, Marta Ghirardello, Sara Mosca, Austin Nevin, Gianluca Valentini, Daniela Comelli   +5 more
doaj   +1 more source

Pigment compositions in Siberian early Upper Paleolithic complexes

UISPP Journal, 2021
Cultural assemblages associated with archaic forms of Homo sapiens in Siberia appeared around 40 000 – 50 000 years BP, revealing the evidence of the modern behavioural complex and use of various pigments.
Liudmila Lbova
doaj   +1 more source

Identification of Novel Pigmentation Modulators by Chemical Genetic Screening [PDF]

Journal of Investigative Dermatology, 2007
There is a continual need for compounds that effectively modulate melanin synthesis. To identify novel pigmentation modulators and their cellular targets, chemical genetic screenings were performed with triazine-based combinatorial libraries that include various linkers as intrinsic components of the small molecules in the library.
Ni-Komatsu, Li, Orlow, Seth J.
openaire   +2 more sources

Overview of molecular signatures of senescence and associated resources: pros and cons

FEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas, Sylvia Vagena, Pavlos Pantelis, Giorgos Theocharous, Russel Petty, Konstantinos Evangelou, Vassilis G. Gorgoulis   +6 more
wiley   +1 more source