Tahir, Muhammad Majeed, Muhammad Irfan Nawaz, Haq Ali, Saqib Rashid, Nosheen Kashif, Muhammad Ashfaq, Iram Ahmad, Waqar Ghauri, Komal Sattar, Fazal
...
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
In this study, Raman spectroscopy is employed for the characterization and comparison of two different classes of exo-polysaccharides including glucans and fructans which are produced by different bacteria. For this purpose, nine samples are used including five samples of glucans and four of fructans. Raman spectral results of all these polysacchar...
Anupurath, Sumita Krishnan, Anju Namasivayam, Dhenadhayalan Rajaraman, Vasanthi Rajendran, Kumaran
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Photophysical and photochemical investigation of photoinduced electron transfer (PET)-based acridinedione dye (ADR1) with urea in the presence of a nitrogenous base (adenine) were carried out in water. Urea suppresses the PET resulting in a fluorescence enhancement and the extent of binding is correlated and governed by the number of urea molecules...
Yifrach, Yair Rahimi, Rami Portnov, Alexander Bar, Ilana
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
A new method for multiple laser beams alignment, useful in a wide range of spectroscopies, is proposed and demonstrated. The method, based on the coupling of spatial map imaging (SMI) with velocity map imaging (VMI), aided beams visualization, through interrogation of the ionization signal of different species in a time-of-flight mass spectrometer....
Zhang, Hongmei Deng, Hao Wang, Yanqing
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
In this work, the binding interaction of an artificial sweetener, acesulfame (ACS) with human serum albumin (HSA) are investigated at the molecular level by using spectral methods and molecular modeling. ACS has the ability to induce static quenching of the intrinsic fluorescence of HSA by a complex formed between HSA and ACS through weak multi-non...
Wang, Yu-Jie Li, Tie-Han Li, Lu-Qing Ning, Jing-Ming Zhang, Zheng-Zhu
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Near-infrared (NIR) spectroscopy is an effective tool for analyzing components relevant to tea quality, especially catechins and caffeine. In this study, we predicted catechins and caffeine content in green and black tea, the main consumed tea types worldwide, by using a micro-NIR spectrometer connected to a smartphone. Local models were establishe...
Rothbauer, Mario Eilenberger, Christoph Spitz, Sarah Bachmann, Barbara Pajenda, Jasmin Schwaighofer, Andreas Höll, Gregor Helmke, Palle Steen Kohl, Yvonne Lendl, Bernhard
...
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Glucose transport is key for cellular metabolism as well as physiological function and is maintained via passive facilitated and active sodium-glucose linked transport routes. Here, we present for the first time Fourier-transform infrared spectroscopy as a novel approach for quantification of apical-to-basolateral glucose transport of in vitro cell...
Ren, Guangxin Wang, Yujie Ning, Jingming Zhang, Zhengzhu
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
The evaluation of tea quality tended to be subjective and empirical by human panel tests currently. A convenient analytical approach without human involvement was developed for the quality assessment of tea with great significance. In this study, near-infrared hyperspectral imaging (HSI) combined with multiple decision tree methods was utilized as ...
Ding, Sha Xu, Aixiang Li, Mengyao Sun, Aokui Zhang, Zhe Xia, Yong Liu, Yuejun
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
A density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations have been used to study the sensing mechanism of an ON1-OFF-ON2 type fluoride anion fluorescent chemosensor (Bis[[7-(diethylamino)-2-oxo-2H-chromene]methyl-ene]‑carbonothioic dihydrazide (CTC). The current theoretical calculation presents a different...
Li, Aisen Liu, Yan Bi, Changjiang Xu, Weiqing Ma, Zhiyong Cui, Haining Xu, Shuping
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
The effects of the high pressure on two single crystals, pyrene and N,N-diphenyl-4-(pyren-1-yl)aniline (TPA-Py), were studied by in situ fluorescent and Raman spectroscopies. During the compression, the pyrene with one structureless excimer emission band showed a continuous bathochromic-shift. In contrast, with the pressure increasing to 10.36 GPa,...
Brela, Mateusz Z Klimas, Oskar Boczar, Marek Nakajima, Takahito Wójcik, Marek J
Published in
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
In this work we present the comparison study of Adenine and Thymine crystals based on the hydrogen bond dynamics. The ab initio molecular dynamics have been used as the base for the further studied interactions observed inside crystals. The generated power spectra, as well as the fluctuation of the interaction energies, showed large differences bet...
