Results 21 to 30 of about 22,643 (278)

Measurement of serum triglycerides by thin-layer chromatography and infrared spectrophotometry*

open access: yesJournal of Lipid Research, 1963
A direct and nondestructive method for the quantitative determination of serum or plasma triglycerides has been developed. The lipid extract of 1 ml of serum is chromatographed on I-mm wet-thickness silicic acid layers prepared from a water–acetone ...
Kenneth Krell, Sami A. Hashim
doaj   +1 more source

PRISMS: a portable multispectral imaging system for remote in situ examination of wall paintings [PDF]

open access: yes, 2007
We present a proto-type portable remote multispectral imaging system, PRISMS (Portable Remote Imaging System for Multispectral Scanning), that is light-weight, flexible and without any cumbersome mechanical structure for in situ high resolution colour ...
Keita, K   +5 more
core   +1 more source

Oleochemicals I: Studies on the preparation and the structure of lithium soaps.

open access: yesGrasas y Aceites, 1999
Lithium stéarate, palmitate, myristate, laurate, caprate and caprylate were prepared by means of fusion method. Elementary analysis and the infrared absorptions spectra of the prepared lithium soaps as well as their X-ray diffractions and the ...
Zein E. Shoeb   +2 more
doaj   +1 more source

Regional differences of hemodynamics and oxygenation in the human calf muscle detected by near infrared spectrophotometry [PDF]

open access: yes, 2007
PurposeMeasurements in muscle tissue are often performed at a selected single location over the muscle of interest. The hypothesis is that the values obtained reflect the status within the entire muscle or muscle group. This, however, may not be the case.
Gratton, E   +11 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

open access: yesResults 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   +4 more
doaj   +1 more source

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

open access: yesJournal 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   +5 more
doaj   +1 more source

Mimetic Core‐Sheath Silk Sutures with Superior‐Strength for Pain Management, Anti‐Infection and Wound Healing

open access: yesAdvanced Healthcare Materials, EarlyView.
ABSTRACT Sutures are crucial for tissue approximation and wound healing. Besides their strength limits requirement, they often fail to effectively address complications like infection and pain. Inspired by natural silk's “core‐sheath” structure, our suture features a wet‐spun core of n zinc‐fortified silk fibroin fibers (RSF‐Zn2+) after drawing with ...
Yi Peng   +11 more
wiley   +1 more source

Remote multispectral imaging with PRISMS and XRF analysis of Tang Tomb paintings [PDF]

open access: yes, 2011
PRISMS (Portable Remote Imaging System for Multispectral Scanning) is a multispectral/hyperspectral imaging system designed for flexible in situ imaging of wall paintings at high resolution (tens of microns) over a large range of distances (less than a ...
Rebecca Lange   +5 more
core   +1 more source

Interfacial Acid Sites‐Mediated ZnO‐Based Electrocatalysts for Sustainable Dual‐Pathway H2O2 Production and Rechargeable Zn‐H2O2 Electrochemical Cell

open access: yesAdvanced Materials, EarlyView.
In this work, a synergistic strategy introduces interfacial acid sites, oxygen vacancies, and built‐in electric field into ZnSe/ZnO heterojunction to optimize its electronic structure and electrode micro‐environment. This overcomes sluggish oxygen reduction reaction kinetics and low H2O2 selectivity, achieving record H2O2 productivity (754.4 M gcat−1 ...
Lijun Yang   +8 more
wiley   +1 more source

Gallstone analysis by infrared spectrophotometry [PDF]

open access: yes, 1982
의학과/석사[한글] 담석 분석은 1863년 Thudichum이 최초로 담석의 외형적상태에 따라 분류한 이레 여러번의 수정을 거쳐왔다. 담석의 분석은 그 성분이 담즙색소와 무기질을 함유하고 있기 때문에 어려운 점이 많다. 분석방법으로는 Stepwise solvent extraction method, X-ray diffr action method, thin layer chromatography, 그리고 Infrared spectrophotometry ...
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