Results 51 to 60 of about 1,187 (190)

Manikya Bhasma is a nanomedicine to affect cancer cell viability through induction of apoptosis

Journal of Ayurveda and Integrative Medicine, 2021
Background: Ayurveda is an ancient medicine system practiced in the Indian sub-continent. Ayurvedic Bhasma is incinerated herbo-metallic/mineral preparations that consist of the particles in the range of nano/micrometers with therapeutic effects against ...
Shikha Jha, Vishal Trivedi
doaj   +1 more source

The first cave occurrence of orpiment (As2S3) from the sulfuric acid caves of Aghia Paraskevi (Kassandra Peninsula, N. Greece)

International Journal of Speleology, 2011
Orpiment, tamarugite and pickeringite occur in close association above the surface of thermal water cave pools in the active sulfuricacid caves of Aghia Paraskevi on the Kassandra peninsula, northern Greece.
Lazarides Georgios, Melfos Vasilios, Papadopoulou Lambrini   +2 more
doaj  

Poisonous books: analyses of four sixteenth and seventeenth century book bindings covered with arsenic rich green paint

Heritage Science, 2019
Efforts to read medieval manuscript waste recycled as bookbinding material in the sixteenth and seventeenth centuries have resulted in the chemical analysis of four books housed at the University Library of Southern Denmark and the Smithsonian Libraries ...
Thomas Delbey, Jakob Povl Holck, Bjarke Jørgensen, Alexandra Alvis, Vanessa Haight Smith, Gwénaëlle M. Kavich, Kimberly A. Harmon, Bertil Fabricius Dorch, Kaare Lund Rasmussen   +8 more
doaj   +1 more source

Multi-analytical investigation into the materials and techniques of paintings on Northern Wei Dynasty (398–494 CE) coffin planks excavated from Shanxi, China

Humanities & Social Sciences Communications, 2023
This study combined various non-invasive and micro-invasive analytical techniques to investigate the production process of coffin plank paintings excavated from a Northern Wei tomb in Zhijiabao Village, Datong City, Shanxi Province.
Zhiyong Guo, Shiqi Cai, Zhanyun Zhu, Yaling Qin, Xiuya Yao, Jia Wang, Wenxiao Jin, Meifeng Shi, Lanfang Li, Junchang Yang, Liu Liu   +10 more
doaj   +1 more source

Color analysis of ancient Egyptian paintings and its applications in modern digital visualization

Color Research &Application, Volume 50, Issue 1, Page 4-24, January/February 2025.
Abstract This study aims to identify the color preferences of ancient Egyptian paintings and their cultural and historical reasons through color analysis, and consequently introduce a color collection of ancient Egyptian painting colors for color matching of modern digital images.
Qiaoling Zeng
wiley   +1 more source

The darkening of copper- or lead-based pigments explained by a structural modification of natural orpiment : a spectroscopic and electrochemical study

, 2017
: A combined Raman and electrochemical study of natural orpiment (As2S3), an arsenic sulfide pigment, was used to assess the quick formation of oxidized species such as arsenic oxide (As2O3) upon exposing the pigment to 405 nm or 532 nm monochromatic ...
Nuyts, Gert, De Wael, Karolien, Vermeulen, Marc, Sanyova, Jana, De Meyer, Steven, Janssens, Koen   +5 more
core   +2 more sources

Vadose zone perspectives in global arsenic research: A review and future opportunities

Vadose Zone Journal, Volume 23, Issue 4, July/August 2024.
Abstract Few contaminants have been linked to more devastating human health and environmental impacts than carcinogenic arsenic (As). Geogenic As contamination of groundwater used as a drinking water source continues to threaten hundreds of millions of lives worldwide, with the As crisis in South and Southeast Asia often called “the largest mass ...
C. M. van Genuchten, K. Wang, R. Jakobsen   +2 more
wiley   +1 more source

Analytical imaging studies of the migration of degraded orpiment, realgar, and emerald green pigments in historic paintings and related conservation issues [PDF]

, 2016
Publisher's PDFYellow orpiment (As2S3) and red–orange realgar (As4S4) photo-degrade and the nineteenth-century pigment emerald green (Cu(C2H3O2)2·3Cu(AsO2)2) degrades into arsenic oxides.
Apurva Mehta, Jennifer Mass, Florian Meirer, Church, Jonathan, Jonathan Church, Katrien Keune, Meirer, Florian, Keune, Katrien, Mehta, Apurva, Mass, Jennifer   +9 more
core   +3 more sources

Introduction and scientific study of unique manuscript of the Nezami’s Panj Ganj in central library and documentation centre of University of Tehran [PDF]

تحقیقات کتابداری و اطلاع‌رسانی دانشگاهی, 2018
Purpose: The objective of this study is to identify the different ingredients used in the manuscript of the Nezami’s Panj Ganj. This unique illustrated version belongs to the Mughal era in the eighth century AH and it has been purchased by central ...
Lili Kordavani, Roya Bahadori, Faranak Bahrololumi   +2 more
doaj   +1 more source

A multimodal scanner coupling XRF, UV–Vis–NIR photoluminescence and Vis–NIR–SWIR reflectance imaging spectroscopy for cultural heritage studies

X-Ray Spectrometry, Volume 53, Issue 4, Page 271-281, July/August 2024.
Abstract Scanning x‐ray fluorescence (MA‐XRF), Reflectance Imaging Spectroscopy (RIS) and Luminescence Imaging Spectroscopy (LIS) are scientific methods extensively used in the investigation of artworks in Cultural Heritage Science. Nevertheless, these three highly complementary imaging methods have never been implemented in a single instrument.
R. Moreau, T. Calligaro, L. Pichon, B. Moignard, S. Hermon, I. Reiche   +5 more
wiley   +1 more source