Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Papers 25894
1 page of 2,590 pages (25.9k results)
Lixia Zhang (Xiangnan University), Bin Deng (Xiangnan University)+ 3 AuthorsRuijin Yu10
Estimated H-index: 10
(NWAFU: Northwest A&F University)
Abstract Eu3+-doped bismuth lanthanum tungstate BiLaWO6 phosphors were synthesized for the first time by a conventional solid-state reaction at 1273 K. By powder X-ray diffraction (XRD), the crystal structure of the phosphor was verified, which revealed its single-phase structure. Under the 467 nm wavelength excitation, the Eu3+-doped BiLaWO6 phosphor powders showed red emission (617 nm) that was ascribed to the 5D0 → 7F2 transitions of Eu3+. The effects of concentration on luminescence properti...
Rahat Ullah6
Estimated H-index: 6
Saranjam Khan6
Estimated H-index: 6
(Islamia College University)
+ 1 AuthorsMuhammad Bilal11
Estimated H-index: 11
Abstract In current study, synchronous front-face fluorescence spectroscopy together with partial least squares regression (PLSR) is used to predict the adulteration of cow and buffalo milk quantitatively. Fresh (unprocessed milk) samples of cow and buffalo were collected from local dairy farms. Fluorescence emission from milk samples mixed in different concentrations, show intensity variations at wavelengths 370–380 nm, 410 nm, 442 nm and 520–560 nm. Among them, the emissions at band position o...
Bahareh Jamshidi6
Estimated H-index: 6
Abstract The feasibility of utilizing near-infrared (NIR) spectroscopy has been recently assessed for rapid and non-destructive detection of internal insect infestation in some fruits. Based on the findings, this technology can be used for on/in-line inspection of the fruits in terms of insect infestation if suitable instrument is selected for accurate spectral measurements and system development. The spectral range and optical measurement mode are two of the most important factors which can aff...
Zhengquan Yan4
Estimated H-index: 4
(Qufu Normal University),
Cong Wang (Qufu Normal University)+ 4 AuthorsLei Hu4
Estimated H-index: 4
(Qufu Normal University)
Abstract To illustrate the impact of molecular structure, especially heterocycle unit, on the sensing performance, two kinds of π-conjugated molecules containing aromatic heterocyclic (Dye 1) and aromatic ring (Dye 2) were identified and compared each other. Even with similar structures, they possessed quite different spectral and colorimetric responses to F−, Cl−, Br−, I−, NO3−, HSO4−, H2PO4−, ClO4− and CH3COO−, etc. The reason might result from the difference in withdraw-electron ability of ar...
Hayam M. Lotfy14
Estimated H-index: 14
(Cairo University),
Sarah S. Saleh8
Estimated H-index: 8
Christine M. El-Maraghy
Abstract An analytical investigation was carried out to study the treatment and amplification of the spectral signals produced by critical concentrations with high accuracy and precision using two advanced approaches. The factorized-spectrum approach was applied through two novel methods which were: absorptivity centering technique via both: factorized zero order absorption spectrum (ACT-FSD 0 ∆A ) and factorized ratio spectrum (ACT-FSR ∆P ). The proposed methods were found to be linear in the r...
Mohd Ishtikhar12
Estimated H-index: 12
(IITB: Indian Institute of Technology Bombay),
Zeba Siddiqui6
Estimated H-index: 6
(Integral University)
+ 2 AuthorsIftekhar Hassan9
Estimated H-index: 9
(KSU: King Saud University)
Abstract In the present study, we report the cooperative refolding/renaturation behaviour of guanidinium hydrochloride (GdnHCl) denatured bovine serum albumin (BSA) in the presence of cationic surfactant cetyltrimethylammonium bromide (CTAB), anionic surfactant sodium dodecyl sulphate (SDS) and their catanionic mixture in the solution of 60 mM sodium phosphate buffer of physiological pH 7.4, using artificial chaperone-assisted two-step method. Here, we have employed biophysical techniques to cha...
Israa Zeid1
Estimated H-index: 1
(Beirut Arab University),
Rania Al Abdallah (Beirut Arab University)+ 1 AuthorsMahmoud Korek16
Estimated H-index: 16
(Beirut Arab University)
Abstract By the use of the ab initio CASSCF/(MRCI+Q) calculations in the representation 2s+1Ʌ(+/−), the adiabatic potential energy curves and the dipole moment curves of the low lying states of the alkaline earth hydride anions (MgH−, CaH−, SrH− and BaH−) have been investigated in their singlet and triplet multiplicities. The spectroscopic parameters Te, Re, ωe, Be, αe, the dipole moment μe, and the dissociation energy De have been also calculated for the bound states of the considered molecules...
Yuee Li6
Estimated H-index: 6
Rong Shen1
Estimated H-index: 1
+ 3 AuthorsDegui Wang6
Estimated H-index: 6
Abstract Heavy metal pollution has become an important issue threatening human health and the liver is a very important metabolic organ. Here, we use label-free Raman confocal imaging to study the alterations of the liver tissue after cadmium pollution. Raman imaging has been performed on 100μmx100μm liver tissues to study the distribution of important macromolecules and the average Raman spectrum of the entire region has been used to characterize and quantize the change of biochemical compositi...
Gangqiang Yuan (Central South University Forestry and Technology), Haiyuan Ding (Central South University Forestry and Technology), Liyi Zhou3
Estimated H-index: 3
(Central South University Forestry and Technology)
Abstract In cells, lysosome is an acidic organelle (approximately pH 4.5–5.5), whose pH changes plays a key role in mediating various biological processes. To address this issue, a lot of fluorescent probes have been developed and prepared for tracking lysosomal pH changes. However, few of these probes can realize the imaging of lysosomal pH changes in biosystems. Herein, a new two-photon (TP) ratiometric fluorescent probe ( NpRhLys-pH ) by adopting the fluorescence resonance energy transfer (FR...
Chanita Boonkanon (PSU: Prince of Songkla University), Kharittha Phatthanawiwat (PSU: Prince of Songkla University)+ 1 AuthorsAree Choodum7
Estimated H-index: 7
(PSU: Prince of Songkla University)
Abstract A tapioca starch film doped with curcumin nanoparticles was successfully fabricated and applied as a novel green colorimetric sensor for detection of boron in wastewater. Curcumin nanoparticles (curn, 30–90 nm) extracted from turmeric powder were used as a green probe, while tapioca starch was used as a natural support substrate. A yellow thin film (51 μm thick) fabricated on a used plastic spoon turned red-brown after immersion in boron solution (pH 9) for 15 min with excellent selecti...