Quantitative Study on the Blockage Degree of Pores Due to Asphaltene Precipitation During CO2 Flooding in Tight Reservoirs With NMR [0.03%]
CO₂泡沫驱沥青沉淀造成的致密油藏孔隙堵塞程度的定量核磁共振研究
Weidong Wang,Weian Huang,Qian Sang et al.
Weidong Wang et al.
CO2 flooding is commonly employed for enhanced oil recovery in tight reservoirs. However, asphaltene deposition-induced pore blockage occurs during injection. Conventional studies primarily neglect pore-scale impairment mechanisms. To accur...
Revealing and Modeling NMR Relaxation Processes in Tissues: Endometrial Cancer Tissue as an Example [0.03%]
组织中NMR弛豫过程的测定和建模：子宫内膜癌组织为例
Karol Kolodziejski,Farman Ullah,Krzysztof Jablonski et al.
Karol Kolodziejski et al.
These studies are intended to be a step towards the identification of characteristic markers of relaxation processes in tissues, with the aim of revealing the extent to which they are tissue and/or cancer specific, and thus to consider the ...
ERETIC2-Assisted NMR Determination of Acid Dissociation Constants (pKa) for Some Novel Coumarin-Substituted Benzimidazolium Salts [0.03%]
基于ERETIC2辅助的新型香豆素取代苯并咪唑盐的酸离解常数(pKa)的核磁测定法研究
Akın Mumcu
Akın Mumcu
Coumarin and benzimidazole are widely preferred pharmacophores in drug design due to their broad spectrum of biological activities, and hybrid molecules formed by the combination of these two structures are thought to possess improved pharm...
Quality Control Assays of Essential Oils Using Benchtop NMR Spectroscopy: Quantification of Key Terpenes, Terpenoids, and Aldehydes Using an Internal Calibrant Approach [0.03%]
使用台式核磁共振光谱法进行精油质量控制分析：采用内标法定量关键单萜、倍半萜和醛类化合物
Juan F Araneda,Matthew C Leclerc,Susanne D Riegel
Juan F Araneda
NMR spectroscopy has been widely used for the identification and structural elucidation of key components found in essential oils. For many years, the combination of NMR spectroscopy with other analytical techniques, such as gas chromatogra...
Synthesis and Evidence for the Stereo/Region-Specific Structure of 5,7-Di(het)aryl-4,5,6,7-tetrahydro-6-nitroazolo[1,5-a]pyrimidines [0.03%]
5,7-二芳杂环-4,5,6,7-四氢-6-硝基氮杂嘌呤类化合物的合成及其构型/区域特异性的结构表征
Denis D Chirkov,Iliya I Butorin,Oleg S Eltsov et al.
Denis D Chirkov et al.
The series of new 2-substituted-5,7-di(het)aryl-6-nitro-4,5,6,7-tetrahydroazolo[1,5-a]pyrimidines were synthesized by reaction between imine and 1-substituted 2-nitroethylene derivatives. The structure of the obtained compounds including st...
Solid-State NMR Elucidation of Intermolecular Interactions in Venetoclax-Fumaric Acid Cocrystal [0.03%]
固态NMR研究维奈托克-富马酸共晶中的分子间相互作用
Shovik Ray,Ranadeep Bokalial,Rahul B Chavan et al.
Shovik Ray et al.
Cocrystallization is of fundamental importance in active pharmaceutical ingredients in order to enhance their physicochemical properties, particularly solubility, stability, and bioavailability, without altering the pharmacological activity...
The Mechanism of [IrCl6]2- Complex Transformation in Acetone Solutions Studied by EPR and UV-Vis Spectroscopy [0.03%]
UV-可见光谱和EPR研究醋酸溶液中[IrCl6]2-配合物的转化机制
Natalia A Chumakova,Sergey O Travin,Olga V Rudnitskaya et al.
Natalia A Chumakova et al.
The substitution reaction of Cl- ion in the complex [IrCl6]2- with the acetone molecule was investigated in detail by CW X-band EPR and UV-Vis spectroscopy methods. An original software package for deconvolution of a series of EPR or optica...
Rashmi Agrata,Ranabir Das
Rashmi Agrata
Deamidation, a modification of glutamine residues in host proteins, plays a key role in bacterial pathogenesis, where bacterial effectors manipulate host signaling pathways by modifying proteins like ubiquitin (Ub) and Ub-like protein NEDD8...
Exploring Dysregulated Plasma Metabolites in Sickle-Cell Disease Patients Using Comparative NMR-Based Metabolomics [0.03%]
基于比较核磁共振的代谢组学在镰状细胞病患者失调血浆代谢物中的应用探索
Libun Pradhan,Chinmay Kumar Sahoo,Blessymol Varghese et al.
Libun Pradhan et al.
Sickle-Cell Disease (SCD) is one of the most common autosomal recessive genetic blood disorders that manifest in abnormal behavior of the red blood cells (RBCs). The mutated Hb causes sickling of RBCs under deoxygenated conditions, reducing...
Dynamic NMR Simulations: A Case Study of Solution-State CPMG-RD and CEST Experiments [0.03%]
动态核磁共振模拟：CPMG-RD和CEST实验的实例研究
Janarthanan Krishnamoorthy,Dipita Bhattacharyya,Anirban Bhunia
Janarthanan Krishnamoorthy
Simulations are essential in NMR spectroscopy for understanding and quantitatively predicting the outcomes of experiments. Dynamic NMR experiments are influenced by relaxation and chemical exchange phenomena, which complicate their interpre...