Results 11 to 20 of about 50,078 (268)

Autotrophic and Heterotrophic Growth Conditions Modify Biomolecole Production in the Microalga Galdieria sulphuraria (Cyanidiophyceae, Rhodophyta) [PDF]

, 2020
Algae have multiple similarities with fungi, with both belonging to the Thallophyte, a polyphyletic group of non-mobile organisms grouped together on the basis of similar characteristics, but not sharing a common ancestor.
Barone, R., Carraturo, F., D'Elia, L., De Napoli, L., Gambino, E., Guida, M., Lorito, M., Marra, R., Mayol, L., Paolucci, M., Pollio, A., Vinale, F., Volpe, M. G., Woo, S. L.   +13 more
core   +1 more source

Synthesis of silver nanoparticles using plant extracts from Erythrina abyssinica aerial parts and assessment of their anti-bacterial and anti-oxidant activities

Results in Chemistry, 2022
In the present study, silver nanoparticles were synthesized using Erythrina abyssinica aerial parts as both reducing and capping agents. Three extracts were obtained from the plant using methanol, acetone and water.
Netai Mukaratirwa-Muchanyereyi, Cecilia Gusha, Munyaradzi Mujuru, Upenyu Guyo, Stephen Nyoni   +4 more
doaj   +1 more source

Fourier transform infrared spectrophotometry and X-ray powder diffractometry as complementary techniques in characterizing clay size fraction of kaolin

Journal of Applied Sciences and Environmental Management, 2005
This study aimed at demonstrating complementary roles offered by both Fourier transform infrared (FTIR) spectrophotometry and x-ray powder diffraction (XRPD) techniques in characterizing clay size fraction of kaolins.
Georges-Ivo E Ekosse
doaj   +1 more source

Synthesis, Characterization and Antimicrobial Activities of Copper-Tea Leaves (Camellia Sinensis) Extract Nanoparticles.

Journal of Nigerian Society of Physical Sciences, 2022
Nanoparticles, NPs synthesis has gained attention recently due to their ease of preparation (especially green synthesis), availability of raw materials and usefulness. The green synthesis of copper nanoparticles (CuNPs) was done using Tea leaves extract-
Boniface Tersoo Iorhuna, Timothy Tertsea Awuhe, Igbalagh Chia Azuaga, Ernest Isaac, Faisal Shuaibu, Banwala Yohanna   +5 more
doaj   +1 more source

An Infrared Standard Curve Method for Calculating the Total Amount of Petroleum in Environmental Samples

Yankuang ceshi, 2022
BACKGROUND Petroleum oil is one of the necessary indicators for environmental monitoring, which mainly exists in the form of hydrocarbons. Therefore, infrared spectrophotometry is one of the most reliable methods to determine the total amount of ...
AN Caixiu, LIU Shuhong, SHI Huiqing, YANG Lijuan, HE Yantao, CHEN Yang   +5 more
doaj   +1 more source

Detection of Solvents by Infrared Spectrophotometry [PDF]

Journal of AOAC INTERNATIONAL, 1967
Abstract The solvent used in the recrystallization of a solid may be determined by use of the IR spectrum and gas cell. Recrystallized powders retain a minute amount of solvent which is not detectable in a KBr disk of the powder, but is detectable when a gas cell is vised.
Evelyn Sarnoff, George Schwartzman, Daniel J Sullivan   +2 more
openaire   +1 more source

Simultaneous determination of triglycerides and cholesterol esters in serum by infrared spectrophotometry

Journal of Lipid Research, 1964
With the use of a high-resolution grating infrared spectrophotometer, it is possible to analyze mixtures of cholesterol esters and triglycerides on the basis of the difference in their ester carbonyl absorption frequencies.
Norman K. Freeman
doaj   +1 more source

First Results from the rapid-response spectrophotometric characterization of Near-Earth Objects [PDF]

, 2019
As part of our multi-observatory, multi-filter campaign, we present \rmi color observations of 82 Near-Earth Objects (NEOs) obtained with the RATIR instrument on the 1.5m robotic telescope at the San Pedro Martir's National Observatory in Mexico.
Axelrod, Tim, Butler, Nathaniel, Jedicke, Robert, Mommert, Michael, Moskovitz, Nicholas, Navarro-Meza, Samuel, Pichardo, Barbara, Reyes-Ruiz, Mauricio, Trilling, David   +8 more
core   +2 more sources

Clinical data on rare Sulfamethoxazole crystalluria assessed by Fourier transform infrared spectrophotometry

Data in Brief, 2018
The data contained in this article are related to the article entitled “Case report: Uncommon Sulfamethoxazole Crystalluria” (Castiglione et al., 2018).
Vincent Castiglione, Etienne Cavalier, Romy Gadisseur   +2 more
doaj   +1 more source

The effect of constitutive pigmentation on the measured emissivity of human skin.

PLoS ONE, 2020
BackgroundThe measurement of body temperature has become commonplace in the current COVID-19 pandemic. Body temperature can be measured using thermal infrared imaging, a safe, non-contact method that relies on the emissivity of the skin being known to ...
Matthew Charlton, Sophie A Stanley, Zoë Whitman, Victoria Wenn, Timothy J Coats, Mark Sims, Jonathan P Thompson   +6 more
doaj   +1 more source