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Total 514633 results found since Jan 2013.
Photocatalytic oxygenation of sulfide using solar light and ingenious GQDs@AQ catalyst: Mechanistic and synthetic investigations
In this study, we investigate the use of solar light and a novel catalyst consisting of Graphene Quantum Dots (GQDs) decorated with an ingeniously designed aqueous quantum (AQ) system for efficient sulfide oxygenation. AbstractThe combination of excellent electronic properties and thermal stability positions orange-derived graphene quantum dots (GQDs) as promising materials for solar light-based applications. Researchers are actively exploring their potential in fields such as photovoltaics, photocatalysis, optoelectronics, and energy storage. Their abundance, cost-effectiveness, and eco-friendly nature further contribute ...
Source: Photochemistry and Photobiology - September 23, 2023 Category: Science Authors: Rahnuma Siddique,
Rajesh K. Yadav,
Satyam Singh,
Rehana Shahin,
Arun K. Dubey,
Alok Kumar Singh,
Atresh K. Singh,
Navneet Kumar Gupta,
Jin ‐Ook Baeg,
Tae Wu Kim Tags: RESEARCH ARTICLE Source Type: research
Sensors, Vol. 23, Pages 8042: Effect of Tryptic Digestion on Sensitivity and Specificity in MALDI-TOF-Based Molecular Diagnostics through Machine Learning
nathan Thompson
The digestion of protein into peptide fragments reduces the size and complexity of protein molecules. Peptide fragments can be analyzed with higher sensitivity (often > 102 fold) and resolution using MALDI-TOF mass spectrometers, leading to improved pattern recognition by common machine learning algorithms. In turn, enhanced sensitivity and specificity for bacterial sorting and/or disease diagnosis may be obtained. To test this hypothesis, four exemplar case studies have been pursued in which samples are sorted into dichotomous groups by machine learning (ML) software based on MALDI-TOF spect...
Source: Sensors - September 23, 2023 Category: Biotechnology Authors: Sumon Sarkar Abigail Squire Hanin Diab Md. Kaisar Rahman Angela Perdomo Babafela Awosile Alexandra Calle Jonathan Thompson Tags: Article Source Type: research
Bill Gates speaks out on major overlooked contributor to Earth ’s overheating: ‘The one that people are probably least aware of’
There are a number of contributors to global heating that many of us could likely list without much trouble. Chemical waste, vehicle pollution, single-use plastics, and deforestation are among the most well known. However, while discussing the subject on his podcast, “Unconfuse Me,” Bill Gates…#billgates #gates #worldcounts #reddit #yahoo
Source: Reuters: Health - September 22, 2023 Category: Consumer Health News Source Type: news
Chemical Analysis of Limb Microfluidics
Conditions: Limb Ischemia; Compartment Syndrome of Leg Intervention: Device: Microdialysis catheter + biosensor Sponsors: Imperial College London; The Drummond Foundation (RAMC charity) Recruiting
Source: ClinicalTrials.gov - September 22, 2023 Category: Research Source Type: clinical trials
Starch/PVOH aqueous solutions: a chemical –physical characterization
This article is licensed under aCreative Commons Attribution-NonCommercial 3.0 Unported Licence.Paolino Caputo, Valeria Loise, Maria Francesca Colella, Michele Porto, Rosachiara A. Salvino, Cesare Oliviero Rossi, Giuseppina De Luca This work investigates the relationship between the structure and physicochemical properties of three different starches in starch/polyvinyl alcohol aqueous solutions. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - Phys. Chem. Chem. Phys. latest articles - September 22, 2023 Category: Chemistry Authors: Paolino Caputo Source Type: research
Enhancing Energy Transfer by Regulating Electron Transport Pathways in Semiconductor Metal-Organic Framework
J. Mater. Chem. A, 2023, Accepted Manuscript DOI: 10.1039/D3TA04403C, PaperPeng-da Liu, Yuan Chen, Ao-gang Liu, Zi-tong Chen, Bao Li Photocatalysis is an effective approach to convert solar energy into chemical energy using semiconductor materials. However, the fast recombination rate of electron-hole pairs in these materials leads to low energy... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - J. Mater. Chem. latest articles - September 22, 2023 Category: Chemistry Authors: Peng-da Liu Source Type: research
Quality consistency evaluation of chemical composition and pharmacology of Shaoyao-Gancao decoction dispensing granules and traditional decoction
This study presents a method for evaluating the quality consistency of DGCM and TD of SGD, offering novel insights into the evaluation of consistency between DGCM and TD.PMID:37736670 | DOI:10.1002/bmc.5745
Source: Biomedical Chromatography : BMC - September 22, 2023 Category: Biomedical Science Authors: Fengyu Dong Mengdi Xie Manwen Xu Lu Lu Yan Miao Panpan Zhang Xiaopeng Li Xinjing Gui Ruixin Liu Source Type: research
Automated radiosynthesis of < sup > 18 < /sup > FFMPEP- < em > d < /em > < sub > 2 < /sub > for cannabinoid receptor PET imaging
Am J Nucl Med Mol Imaging. 2023 Aug 15;13(4):171-178. eCollection 2023.ABSTRACTThe cannabinoid subtype 1 receptor (CB1R) is highly expressed in the central nervous system and abnormalities in regional CB1R density are associated with neurodegenerative disorders. The PET tracer [18F]FMPEP-d2 is an inverse CB1R agonist which was shown to be suitable for non-invasive PET imaging. In this work, we reported the fully automated radiosynthesis of [18F]FMPEP-d2 on a Synthra RNplus research module. In a total synthesis time of 70 min, [18F]FMPEP-d2 was obtained in 2.2 ± 0.1 GBq (n = 3) with excellent radiochemical and chemical pur...
Source: Molecular Medicine - September 22, 2023 Category: Molecular Biology Authors: Huailei Jiang Yan Guo Otto Muzik Source Type: research
Bystander chemical exposures and injuries associated with nearby plastic sewer pipe manufacture: public health practice and lessons
J Environ Health. 2022 Nov;85(4):22-31.ABSTRACTCured-in-place pipes (CIPPs) are plastic liners manufactured inside existing damaged sanitary sewer, storm sewer, and water pipes that extend the service life of host pipes. This process often is conducted in neighborhoods and near roadways. Before, during, and after plastic manufacture, waste materials that include volatile materials are released into the air. Emissions from this manufacturing process can affect outdoor air quality and indoor air quality for buildings connected to the sewer system. We identified key issues and solicited stakeholder feedback to estimate and ma...
Source: Journal of Environmental Health - September 22, 2023 Category: Environmental Health Authors: Yoorae Noh Jonathan H Shannahan Anna G Hoover Kelly G Pennell Mark H Weir Andrew J Whelton Source Type: research
Composite Silica-Based Films as Platforms for Electrochemical Sensors
Chem Rec. 2023 Sep 22:e202300194. doi: 10.1002/tcr.202300194. Online ahead of print.ABSTRACTSol-gel-derived silica thin films generated onto electrode surfaces in the form of organic-inorganic hybrid coatings or other composite layers have found tremendous interest for being used as platforms for the development of electrochemical sensors and biosensors. After a brief description of the strategies applied to prepare such materials, and their interest as electrode modifier, this review will summarize the major advances made so far with composite silica-based films in electroanalysis. It will primarily focus on electrochemic...
Source: Chemical Record - September 22, 2023 Category: Chemistry Authors: Oksana Tananaiko Alain Walcarius Source Type: research
Rational Design of Hollow Structural Materials for Sodium-Ion Battery Anodes
Chem Rec. 2023 Sep 21:e202300206. doi: 10.1002/tcr.202300206. Online ahead of print.ABSTRACTThe development of sodium-ion battery (SIB) anodes is still hindered by their rapid capacity decay and poor rate capabilities. Although there have been some new materials that can be used to fabricate stable anodes, SIBs are still far from wide applications. Strategies like nanostructure construction and material modification have been used to prepare more robust SIB anodes. Among all the design strategies, the hollow structure design is a promising method in the development of advanced anode materials. In the past decade, research ...
Source: Chemical Record - September 22, 2023 Category: Chemistry Authors: Chu Qin Zhong-Jie Jiang Thandavarayan Maiyalagan Zhongqing Jiang Source Type: research
Impact of ecological stages on the soil microbiota and soil abiotic factors in tropical and subtropical Brazilian regions
Arch Microbiol. 2023 Sep 22;205(10):335. doi: 10.1007/s00203-023-03677-8.ABSTRACTOur aim was to test if ecological stages may influence the arbuscular mycorrhizal fungi (AMF), nematodes, and the soil chemical properties in agroforestry systems (AF), unassisted forest restoration (UFR), and natural ecosystem (Ne) located in the Brazilian Tropical and Subtropical regions. We collected soil samples to determine AMF, nematodes, soil pH, P, and soil organic carbon (SOC). AMF and nematode richness in the AF and Ne were similar in the tropical region. The redundancy analysis (RDA) indicated that the abundance of AMF and soil nema...
Source: Archives of Microbiology - September 22, 2023 Category: Microbiology Authors: Tancredo Augusto Feitosa de Souza Lucas J ónatan Rodrigues da Silva L ídia Klestadt Laurindo Gislaine Dos Santos Nascimento Milton C ésar Costa Campos Source Type: research
Cytochrome P450 Mediated Cyclization in Eunicellane Derived Diterpenoid Biosynthesis
Angew Chem Int Ed Engl. 2023 Sep 21:e202312490. doi: 10.1002/anie.202312490. Online ahead of print.ABSTRACTTerpene cyclization, one of the most complex chemical reactions in nature, is generally catalyzed by two classes of terpene cyclases (TCs). Cytochrome P450s that act as unexpected TC-like enzymes are known but are very rare. Here, we genome-mined a cryptic bacterial terpenoid gene cluster, named ari, from the thermophilic actinomycete strain Amycolatopsis arida. By employing a heterologous production system, we isolated and characterized three highly oxidized eunicellane derived diterpenoids, aridacins A-C (1-3), that...
Source: Angewandte Chemie - September 22, 2023 Category: Chemistry Authors: Zengyuan Wang Qian Yang Jingyi He Haixin Li Xingming Pan Zining Li Hui-Min Xu Jeffrey Rudolf Dean Tantillo Liao-Bin Dong Source Type: research
Automated radiosynthesis of < sup > 18 < /sup > FFMPEP- < em > d < /em > < sub > 2 < /sub > for cannabinoid receptor PET imaging
Am J Nucl Med Mol Imaging. 2023 Aug 15;13(4):171-178. eCollection 2023.ABSTRACTThe cannabinoid subtype 1 receptor (CB1R) is highly expressed in the central nervous system and abnormalities in regional CB1R density are associated with neurodegenerative disorders. The PET tracer [18F]FMPEP-d2 is an inverse CB1R agonist which was shown to be suitable for non-invasive PET imaging. In this work, we reported the fully automated radiosynthesis of [18F]FMPEP-d2 on a Synthra RNplus research module. In a total synthesis time of 70 min, [18F]FMPEP-d2 was obtained in 2.2 ± 0.1 GBq (n = 3) with excellent radiochemical and chemical pur...
Source: Cancer Control - September 22, 2023 Category: Cancer & Oncology Authors: Huailei Jiang Yan Guo Otto Muzik Source Type: research
