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Synthesis of Electrical Conductive Metal-Organic Frameworks for Elelctrochemical Applications
Chem Rec. 2023 Sep 18:e202300141. doi: 10.1002/tcr.202300141. Online ahead of print.ABSTRACTElectrical conductivity is very important property of nanomaterials for using wide range of applications especially energy applications. Metal-organic frameworks (MOFs) are notorious for their low electrical conductivity and less considered for usage in pristine forms. However, the advantages of high surface area, porosity and confined catalytic active sites motivated researchers to improve the conductivity of MOFs. Therefore, 2D electrical conductive MOFs (ECMOF) have been widely synthesized by developing the effective synthetic st...
Source: Chemical Record - September 19, 2023 Category: Chemistry Authors: Syed Shoaib Ahmad Shah Muhammad Altaf Nazir Azhar Mahmood Manzar Sohail Aziz Ur Rehman Muhammad Khurram Tufail Tayyaba Najam Muhammad Sufyan Javed Sayed M Eldin Md Rezaur Rahman Mohammed M Rahman Source Type: research
A visible light-driven direct synthesis of industrially relevant glutaric acid diesters from aldehydes
Chem Commun (Camb). 2023 Sep 19. doi: 10.1039/d3cc02557h. Online ahead of print.ABSTRACTA straightforward and practical method has been developed to access α-substituted glutaric diesters from acrylates and aldehydes using visible light, with Eosin Y facilitating hydrogen atom transfer (HAT) and subsequent Giese-type addition. Also, sunlight has been successfully used as an alternative sustainable light source. The method has also been explored to access substituted 4,5-dihydro-2H-pyridazinones, which have potential biological and industrial applications. Comprehensive mechanistic investigations have been carried out.PMID...
Source: Chemical Communications - September 19, 2023 Category: Chemistry Authors: Anindita Bhowmick Abhijit Chatterjee Sidharth S Pathak Ramakrishna G Bhat Source Type: research
Potassium stearate doped PEDOT:PSS improves the performance of inverted perovskite solar cells
Chem Commun (Camb). 2023 Sep 19. doi: 10.1039/d3cc03539e. Online ahead of print.ABSTRACTPoly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) suffers from lower conductivity and surface defects, which hinders the extraction and transport of effective charges, thereby reducing the Power conversion efficiency (PCE) and long-term stability of PSCs. Therefore, this study introduces potassium stearate (KSt) doping in PEDOT:PSS to regulate its conductivity and interface charge transfer. As a result, KSt-doped PEDOT:PSS increase the PCE of the device from 16.35% to 18.35%. Moreover, the PCE of PSCs with KSt-doped PE...
Source: Chemical Communications - September 19, 2023 Category: Chemistry Authors: Ying Li Yanqing Yao Yuanlin Yang Xusheng Zhao Wan Cheng Banghui Chen Lijia Chen Ping Li Shuhui Tang Source Type: research
The glass transition in the high-density amorphous Zn/Co-ZIF-4
Chem Commun (Camb). 2023 Sep 19. doi: 10.1039/d3cc02492j. Online ahead of print.ABSTRACTThe high-density amorphous phases (HDAs) of bimetallic zeolitic imidazolate frameworks (Zn/Co-ZIF-4) were prepared. The temperature dependence of the isobaric heat capacity (Cp) of ZIF-4 HDAs was measured to determine the glass transition temperature (Tg) of HDAs. The Tg non-linearly decreases with the molar ratio R, where R is Co/(Co + Zn), indicating the presence of a mixed-metal node effect. This effect arises from the non-linear increase of the degree of configurational freedom in the HDA as R increases. The degree of configurationa...
Source: Chemical Communications - September 19, 2023 Category: Chemistry Authors: Zijuan Du Ang Qiao Hemin Zhou Zhencai Li Wessel M W Winters Jiexin Zhu Guanjie He Ivan P Parkin Haizheng Tao Yuanzheng Yue Source Type: research
Computational Studies and Synthesis of New Heterocyclics as CNS Agents
CONCLUSION: The designed scheme was executed in the departmental laboratory. The chemical structure of the compounds was confirmed on the basis of TLC, IR, and 1HNMR analyses. The docking study revealed a good docking score of the compounds. The Log P value of the compounds indicated their good penetration into CNS. The compounds were also screened for anxiolytic activity. Among them, compounds 4f, 4h, and P3 showed maximum activity as anti-anxiolytic agents.PMID:37723630 | DOI:10.2174/1570163820666230918100218
Source: Current Drug Discovery Technologies - September 19, 2023 Category: Drugs & Pharmacology Authors: Pooja Saini Sushil Kumar Source Type: research
Effect of electrical and chemical (activation versus inactivation) stimulation of the infralimbic division of the medial prefrontal cortex in rats with chronic neuropathic pain
This study aimed to investigate the participation of the infralimbic division (IFL) of the mPFC in chronic NP, as well as the role of the N-methyl-D-aspartic acid receptor (NMDAr) in the elaboration of chronic NP. Male Wistar rats were submitted to the von Frey and acetone tests to assess mechanical and cold allodynia after 21 days of chronic constriction injury (CCI) of the sciatic nerve or Sham-procedure ("false operated"). Electrical neurostimulation of the IFL/mPFC was performed by low-frequency stimuli (20 μA, 100 Hz) applied for 15 s by deep brain stimulation (DBS) device 21 days after CCI. Either cobalt chloride (C...
Source: Experimental Brain Research - September 19, 2023 Category: Neuroscience Authors: Thais Lohanny Moura-Pacheco Renata Cristina Martins-Pereira Priscila Medeiros Louren ço Sbragia Christie Ramos Andrade Leite-Panissi H élio Rubens Machado Norberto Cysne Coimbra Renato Leonardo de Freitas Source Type: research
Density functional theory study on the formation mechanism of CaClOH in municipal solid waste incineration fly ash
Environ Sci Pollut Res Int. 2023 Sep 20. doi: 10.1007/s11356-023-29668-2. Online ahead of print.ABSTRACTMunicipal solid waste incineration (MSWI) fly ash is defined as a kind of hazardous waste because of its high levels of multiple pollutants. The main component of MSWI fly ash is CaClOH, and the characteristics have not achieved consensus. And density functional theory (DFT) was used to calculate the formation process of CaClOH in this study, which mainly included HCl adsorption on CaO (0 0 1) surface and Ca(OH)2 (0 0 1) surface and the surface reaction process. The reaction mechanism was investigated. The results showed...
Source: Environmental Science and Pollution Research International - September 19, 2023 Category: Environmental Health Authors: Ying Ling Qinyang Gu Baosheng Jin Source Type: research
An 18F-MD-PSMA (Multi-dentate PMSA Imaging Agent) PET/CT in Prostate Cancer Relapse: Results of a Retrospective Trial
CONCLUSION: An 18F-MD-PSMA as a radioligand was found to be superior to 11C-choline in the setting of patients with biochemical relapse after previous treatment. Its PET imaging results matched those of established PSMA radioligands, but its chemical structure was found to have added features to conjugate with other functional molecules, such as those with therapeutic properties. This radioligand lays the foundation for our further work.PMID:37724670 | DOI:10.2174/1874471016666230915103157
Source: Current Radiopharmaceuticals - September 19, 2023 Category: Radiology Authors: HongLiang Fu Sheng Liang MiaoMiao Xu Jun Guo Qiang Liu Jian Kang LinLin Zhang ZiHao Liu Lin Ding YuFei Ma Bin Yang Xudong Yao Jun Qi Hui Wang YongQuan Cai Source Type: research
Suspect screening for chemical residues in aquacultured shrimp and fish using liquid chromatography-high resolution mass spectrometry: comparison of data evaluation approaches
Anal Bioanal Chem. 2023 Sep 19. doi: 10.1007/s00216-023-04927-w. Online ahead of print.ABSTRACTHigh-resolution mass spectrometry (HRMS) has become an important tool for monitoring chemical residues in food, but the time and effort required to evaluate the large amount of data generated by HRMS can be a limiting factor in the widespread application of this tool. Suspect screening, i.e., searching HRMS data against large compound databases or mass lists, represents a practical compromise between using HRMS data to only look for target compounds and performing full non-target analysis. Several different approaches for suspect...
Source: Analytical and Bioanalytical Chemistry - September 19, 2023 Category: Chemistry Authors: Sherri B Turnipseed Christine R Casey Source Type: research
Structural basis for inhibition of a GH116 β-glucosidase and its missense mutants by GBA2 inhibitors: Crystallographic and quantum chemical study
Chem Biol Interact. 2023 Sep 17:110717. doi: 10.1016/j.cbi.2023.110717. Online ahead of print.ABSTRACTThe crystal structure of the Thermoanaerobacterium xylanolyticum in glycoside hydrolase family 116 (TxGH116) β-glucosidase provides a structural model for human GBA2 glucosylceramidase, an enzyme defective in hereditary spastic paraplegia and a potential therapeutic target for treating Gaucher disease. To assess the therapeutic potential of known inhibitors, the X-ray structure of TxGH116 in complex with isofagomine (IFG) was determined at 2.0 Å resolution and showed the IFG bound in a relaxed chair conformation. The bin...
Source: Chemico-Biological Interactions - September 19, 2023 Category: Molecular Biology Authors: Wijitra Meelua Natechanok Thinkumrob Patchreenart Saparpakorn Salila Pengthaisong Supa Hannongbua James R Ketudat Cairns Jitrayut Jitonnom Source Type: research
Effect of electrical and chemical (activation versus inactivation) stimulation of the infralimbic division of the medial prefrontal cortex in rats with chronic neuropathic pain
This study aimed to investigate the participation of the infralimbic division (IFL) of the mPFC in chronic NP, as well as the role of the N-methyl-D-aspartic acid receptor (NMDAr) in the elaboration of chronic NP. Male Wistar rats were submitted to the von Frey and acetone tests to assess mechanical and cold allodynia after 21 days of chronic constriction injury (CCI) of the sciatic nerve or Sham-procedure ("false operated"). Electrical neurostimulation of the IFL/mPFC was performed by low-frequency stimuli (20 μA, 100 Hz) applied for 15 s by deep brain stimulation (DBS) device 21 days after CCI. Either cobalt chloride (C...
Source: Brain Research - September 19, 2023 Category: Neurology Authors: Thais Lohanny Moura-Pacheco Renata Cristina Martins-Pereira Priscila Medeiros Louren ço Sbragia Christie Ramos Andrade Leite-Panissi H élio Rubens Machado Norberto Cysne Coimbra Renato Leonardo de Freitas Source Type: research
Distinctive Arbutin-Containing Markers: Chemotaxonomic Significance and Insights Into the Evolution of Proteaceae Phytochemistry
Chem Biodivers. 2023 Sep 19:e202301112. doi: 10.1002/cbdv.202301112. Online ahead of print.ABSTRACTNatural products isolation studies of eight endemic Tasmanian Proteaceae species - Agastachys odorata, Persoonia juniperina, Hakea megadenia, Hakea epiglottis, Orites diversifolius, Orites acicularis,Orites revolutus, and Telopea truncata - and three endemic Australian Proteaceae species Banksia serrata, Banksia praemorsa, and Banksia marginata were undertaken.Two previously unreported glycoside-derived natural products were identified, in addition to four other tremendously rare arbutin esters. The results of this study prov...
Source: Chemistry and Biodiversity - September 19, 2023 Category: Biochemistry Authors: Alex C Bissember Samuel D Zarfos Bianca J Deans Curtis C Ho Gregory J Jordan Jason A Smith Source Type: research
Novel Co-Crystal of 3-Methylcinnamic Acid with Berberine(1:1): Synthesis, Characterization, and Intestinal Absorption Property
CONCLUSIONS: The absolute molecular structure of the co-crystal was further confirmed by single crystal X-ray diffraction. The hydrogen bonds drove the formation of X-like one-dimensional unit. Compared to the BBR-HCl, BBR-3MCA cocrystal displayed superior dissolution and solubility performance, improve physical-chemical properties and significantly improve intestinal absorption.PMID:37725481 | DOI:10.1080/03639045.2023.2259460
Source: Drug Development and Industrial Pharmacy - September 19, 2023 Category: Drugs & Pharmacology Authors: Yong He Shiyun Chen Mengmeng Li Yonghao Gao Huiyi Feng Qasim Umar Dengke Yin Yisi Feng Source Type: research
In response to the Letter to the Editor from Xiao regarding our article, "FEMA GRAS assessment of natural flavor complexes: Asafetida oil, garlic oil and onion oil"
Food Chem Toxicol. 2023 Sep 17:114040. doi: 10.1016/j.fct.2023.114040. Online ahead of print.NO ABSTRACTPMID:37726071 | DOI:10.1016/j.fct.2023.114040
Source: Food and Chemical Toxicology - September 19, 2023 Category: Food Science Authors: Jeanne M Davidsen Samuel M Cohen Gerhard Eisenbrand Shoji Fukushima Nigel J Gooderham F Peter Guengerich Stephen S Hecht Ivonne M C M Rietjens Thomas J Rosol Christie L Harman Danarubini Ramanan Sean V Taylor Source Type: research
Formulation and Development of Flurbiprofen Colon-Specific Eudragit Coated Matrix Tablets: Use of a Novel Crude Banana Peel Powder as a Time-Dependent Polymer
In conclusion, utilizing CBP as a natural, time-dependent polymer in conjunction with Eudragit® S 100 to develop the flurbiprofen tablets seems like a promising approach for delivering drugs specifically to the colon.PMID:37726501 | DOI:10.1208/s12249-023-02646-0
Source: AAPS PharmSciTech - September 19, 2023 Category: Drugs & Pharmacology Authors: Sateesh Kumar Vemula Bhaskar Daravath Sridhar Babu Gummadi Michael Repka Source Type: research
