Negative / Null Result ReportOpen accessChemistry
Hilal Daglar, Hasan Can Gülbalkan, Gökay Avcı et al. · 2021 · Angewandte Chemie International Edition
Abstract Development of computation‐ready metal–organic framework databases (MOF DBs) has accelerated high‐throughput computational screening (HTCS) of materials to identify the best candidates for gas storage and separation. These DBs…
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Julio Wainstein, Tali Ganz, Mona Boaz et al. · 2012 · Journal of Medicinal Food
Olive tree (Olea europaea L.) leaves have been widely used in traditional remedies in European and Mediterranean countries as extracts, herbal teas, and powder. They contain several potentially bioactive compounds that may have…
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Alice Cheng, Charles E. Grant, William Stafford Noble et al. · 2018 · Bioinformatics
MOTIVATION: Post-translational modifications (PTMs) of proteins are associated with many significant biological functions and can be identified in high throughput using tandem mass spectrometry. Many PTMs are associated with short sequence…
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Tyler S. Hageman, David D. Weis · 2019 · Analytical Chemistry
Differential hydrogen exchange-mass spectrometry (HX-MS) measurements are valuable for identification of differences in the higher order structures of proteins. Typically, the data sets are large with many differential HX values…
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Erick Cardenas, Wei‐Min Wu, Mary Beth Leigh et al. · 2010 · Applied and Environmental Microbiology
Massively parallel sequencing has provided a more affordable and high-throughput method to study microbial communities, although it has mostly been used in an exploratory fashion. We combined pyrosequencing with a strict indicator species…
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John D. Bagert, Yushu Joy Xie, Michael J. Sweredoski et al. · 2014 · Molecular & Cellular Proteomics
An approach to proteomic analysis that combines bioorthogonal noncanonical amino acid tagging (BONCAT) and pulsed stable isotope labeling with amino acids in cell culture (pSILAC) provides accurate quantitative information about rates of cellular protein synthesis on time scales of minutes. The method is capable of quantifying 1400 proteins produced by HeLa cells during a 30 min interval, a time scale that is inaccessible to isotope labeling techniques alone. Potential artifacts in protein quantification can be reduced to insignificant levels by limiting the extent of noncanonical amino acid t
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Xiao‐Qiang Hu, Yuxing Zhang, Yixin Zhang et al. · 2020 · ChemCatChem
Abstract Ligand steric bulk is one of the most important parameters on determining activity, polymer molecular weight, and branching density in α‐diimine Ni(II) and Pd(II) catalyzed ethylene polymerization. In this contribution, we…
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Julia A. Bubis, Lev I. Levitsky, Mark V. Ivanov et al. · 2017 · Rapid Communications in Mass Spectrometry
Rationale Label‐free quantification (LFQ) is a popular strategy for shotgun proteomics. A variety of LFQ algorithms have been developed recently. However, a comprehensive comparison of the most commonly used LFQ methods is still rare, in…
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Marco R. Oggioni, Joana Rosado Coelho, Leonardo Furi et al. · 2015 · Current Pharmaceutical Design
There is a growing concern by regulatory authorities for the selection of antibiotic resistance caused by the use of biocidal products. We aimed to complete the detailed information on large surveys by investigating the relationship…
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Priyanka Lahiri, Kenneth B. Wiberg, Patrick H. Vaccaro · 2013 · The Journal of Physical Chemistry A
The optical rotatory dispersion of two monocyclic ketones, (R)-3-methylcyclopentanone [R-3MCP] and (R)-3-methylcyclohexanone [R-3MCH], has been investigated under isolated and solvated conditions to explore the role of ring size/morphology…
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Andrew T. Rajczewski, J. Alfredo Blakeley‐Ruiz, Annaliese Meyer et al. · 2025 · PROTEOMICS
Mass spectrometry (MS)-based metaproteomics is used to identify and quantify proteins in microbiome samples, with the frequently used methodology being data-dependent acquisition mass spectrometry (DDA-MS). However, DDA-MS is limited in…
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Santosh Lohumi, Lalit Mohan Kandpal, Young Wook Seo et al. · 2016 · Journal of Biosystems Engineering
Purpose: Fusel oil is a potent volatile aroma compound found in many alcoholic beverages. At low concentrations, it makes an essential contribution to the flavor and aroma of fermented alcoholic beverages, while at high concentrations, it…
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Tongbo Zhu, Zhiying Wang, Lynn M. McMullen et al. · 2021 · Microorganisms
The locus of heat resistance (LHR) confers resistance to extreme heat, chlorine and oxidative stress in Escherichia coli. This study aimed to determine the function of the LHR in maintaining bacterial cell envelope homeostasis, the regulation of the genes comprising the LHR and the contribution of the LHR to alkaline pH response. The presence of the LHR did not affect the activity of the Cpx two-component regulatory system in E. coli, which was measured to quantify cell envelope stress. The LHR did not alter E. coli MG1655 growth rate in the range of pH 6.9 to 9.2. However, RT-qPCR results ind
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Tóth Štefan, Olexa Peter, Hertelyová Zdenka et al. · 2020 · Open Chemistry
The aim of this study was to detect the concentrations of PCSK9 in various subclinical stages of atherosclerosis and to highlight its relationship with inflammation. One hundred and fifty-nine healthy patients were divided into three groups, based on the extent of atherosclerotic changes in the carotid artery: a group without identifiable atherosclerosis, cIMT>75‰ and an asymptomatic plaque group. The PCSK9 was measured by ELISA and hsCRP by the immunoturbidimetric method. Vascular changes were identified by a carotid ultrasound. PCSK9 was elevated, when comparing the healthy group with the cI
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H. Fujino, Soojung Lee, Shigeki Suzuki et al. · 2011 · Journal of Veterinary Medical Science
The adhesion-preventing effect of trehalose in visceral organs was evaluated in a rabbit model. All rabbits underwent a hysterotomy, during which mild abrasion and desiccation was induced on the surfaces of visceral organs. In the control…
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Dhesy Kartikasari, S. Mulyati, Suzanita Utama et al. · 2020
This study aims to evaluate the expression of BAX, BCL-2, and BAX/BCL-2 ratio in maturation media of cow oocytes which supplemented with Urea in vitro because BAX and BCL-2 are the main regulators of apoptosis. A total of 263 oocytes from…
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Maria A. Rezvova, Pavel A. Nikishau, Miraslau I. Makarevich et al. · 2022 · Nanomaterials
Nanocomposites based on poly(styrene- block -isobutylene- block -styrene) (SIBS) and single-walled carbon nanotubes (CNTs) were prepared and characterized in terms of tensile strength as well as bio- and hemocompatibility. It was shown that modification of CNTs using dodecylamine (DDA), featured by a long non-polar alkane chain, provided much better dispersion of nanotubes in SIBS as compared to unmodified CNTs. As a result of such modification, the tensile strength of the nanocomposite based on SIBS with low molecular weight (M n = 40,000 g mol –1 ) containing 4% of functionalized CNTs was in
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Vincent J. Farage, Désimir Janjic · 1981 · CHIMIA
In certain cases, and particularly for the BrO3-/Ce4+/malonic acid system, oxygen seems to inhibit oscillations and the mechanical stirring in a N2 atmosphere has no significant effect on the oscillations. However, for the BrO3-/Ce4+/Cyclohexanon and BrO3-/Ce4+/Cyclopentanon systems under specific experimental conditions, stirring plays a determining part and oxygen has no notable effect on the oscillations.
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Yu Jia, Cao Yu, Song Hang et al. · 2012 · Journal of the Serbian Chemical Society
Ab initio Hartree-Fock (HF) method and Density Functional Theory (DFT) were used to calculate the optical rotation of 26 chiral compounds. The effects of theory and basis sets used for calculation, solvents influence on the geometry and values of calculated optical rotation were all discussed. The polarizable continuum model, included in the calculation, did not improve the accuracy effectively, but it was superior to γs. Optical rotation of five or sixmembered of cyclic compound has been calculated and 17 pyrrolidine or piperidine derivatives which were calculated by HF and DFT methods gave a
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Marcello Zaia Oliveira, Mauro Batista Albano, M. Namba et al. · 2014
Objective: to analyze the effects of hyaluronic acid of different molecular weights in an experimental model of osteoarthritis in rabbits. Methods: forty-four male California rabbits were divided randomly into three groups and underwent…
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Naveed Ahmed, Andrea Straub · 2025 · ChemEngineering
This study aims to estimate the organic load of oily wastewater by using Chemical Oxygen Demand (COD) measurements, addressing the analytical challenges posed by the hydrophobic, nonpolar, and often emulsified nature of Fats, oil and grease (FOG). This study established a reproducible and practical methodology for measuring COD in wastewater containing FOG at a laboratory scale, utilizing the nonionic surfactant T80 as a solubilizing and emulsifying agent. Precise gravimetric methods were employed to measure the mass of T80 (indirectly from volume (100–1400 µL/L)) added, and its correlation wi
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