1,098 results match your criteria: "Centre for Chemical[Affiliation]"

Targeting tumor angiogenesis with safe endogenous protein inhibitors is a promising therapeutic approach despite the plethora of the first line of emerging chemotherapeutic drugs. The extracellular matrix network in the blood vessel basement membrane and growth factors released from endothelial and tumor cells promote the neovascularization which supports the tumor growth. Contrastingly, small cleaved cryptic fragments of the C-terminal non collagenous domains of the same basement membrane display antiangiogenic effect.

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Access to information about chemicals in products and articles is critical for supporting enforcement of chemical regulations, assessing risks from chemicals, allowing informed consumer choices, and enabling product circularity. In this work, we identified and evaluated available databases (DBs) on chemicals in products and articles from the literature using a defined protocol and from European national market surveillance authorities, nongovernmental agencies, and industrial sector groups using questionnaires. This is the first comprehensive review of DBs that provide information about chemicals in products and articles.

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Global landscape of Vibrio parahaemolyticus research: a bibliometric analysis.

World J Microbiol Biotechnol

January 2025

Institute of Climate Adaptation and Marine Biotechnology (ICAMB), Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, 21030, Malaysia.

Vibrio parahaemolyticus poses a notable threat to marine ecosystems and can cause infections and disease outbreaks in seafood species, which can affect humans upon consumption. The global impacts of such infections and outbreaks on human and animal health led to a growing number of studies from various countries discussing the prevention, control, treatment, and overall implications of V. parahaemolyticus.

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The development of all-solid-state frustrated Lewis pairs (FLPs) metal-free hydrogenation catalysts with excellent activity and stability remains a significant challenge. In this work, B, N codoped FLPs catalysts (De-rGO-NB) were prepared by the strategy of fabricating carbon defects and heteroatom doping on the surface of reduced graphene oxide and applied in the selective hydrogenation of α,β-unsaturated aldehydes to unsaturated alcohols. It was found that electron-rich pyridine-N (Lewis base) and adjacent electron-deficient B-N (Lewis acid) sites could be constructed on the surface of reduced graphene oxide using dicyandiamide and metaboric acid as N and B sources, thus forming FLPs sites.

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Developing the mechanism for MOF formation is crucial for the rapid development of new materials. This work demonstrates that Deuterium NMR spectroscopy is the optimal inter-laboratory methodology for understanding the in situ kinetics of metal-organic framework (MOF) formation. This method is facile, affordable, and allows for the isolation and monitoring of individual reagents by using one deuterated component while the remaining components are protonated.

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Current Scenario in Associating Clinical COVID-19 Biomarkers for Developing Surveillance Platforms.

Curr Med Chem

January 2025

Department of Physics, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar, Tamil Nadu, 626126, India.

The novel coronavirus that caused the epidemic and pandemic resulting in the acute respiratory illness known as coronavirus disease 2019 (COVID-19) has plagued the world. This is unlike other coronavirus outbreaks that have occurred in the past, such as Middle East respiratory syndrome (MERS) or severe acute respiratory syndrome (SARS). COVID-19 has spread more quickly and posed special challenges due to the lack of appropriate treatments and vaccines.

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This study examined the impacts of different LED spectra on the growth of in vitro cultures of Musa acuminata cv. red banana and their biochemical profile, including the antioxidant enzymes catalase and ascorbate peroxidase, photosynthetic pigment and accumulation of total carbohydrate content. The far-red LEDs significantly increase shoot elongation (10.

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Bracken Fern Carcinogen, Ptaquiloside, Forms a Guanine -Adduct in DNA.

J Agric Food Chem

January 2025

Centre for Chemical Biology, Department of Chemistry, Institute for Nucleic Acids, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K.

Bracken fern ( sp.) is a viable and vigorous plant with invasive potential, ingestion of which causes chronic illness and cancers in farm animals. Bracken is a suspected human carcinogen, and exposure can result from ingestion of bracken-contaminated water, dairy products, or meat derived from livestock grazing on bracken fern.

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Structure-Guided Development of ClpP Agonists with Potent Therapeutic Activities against Infection.

J Med Chem

January 2025

State Key Laboratory of Drug Research, Centre for Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.

Peritonitis caused by poses a severe threat to patients with end-stage renal failure. Treating multidrug-resistant infections requires the use of antibiotics with diverse mechanisms of action. Caseinolytic protease P (ClpP) is a promising antibacterial target; however, selective activation of (ClpP) over human ClpP (ClpP) remains challenging.

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Wastewater ozonation is commonly employed to enhance the subsequent biodegradation of effluent organic matter (EfOM) and contaminants of concern. However, there is evidence suggesting the formation of recalcitrant ozonation products (OPs) from EfOM. To investigate the biodegradability of OPs we conducted batch biodegradation experiments using wastewater effluent ozonated with mass-labeled (O) ozone.

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Pharmacological investigation of selected 1,2,4 triazole derivative against ethanol induced gastric ulcer.

Bioorg Chem

January 2025

Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad Pakistan. Electronic address:

The present study aims to assess the therapeutic potential of (2S,3S,4S,5S,6S-2-(acetoxymethyl)-6-(4-chlorophenyl)-3-(pyridine-4-yl)5-thioxo-4,5-dihydro-1,2,4-triazol-1-yl tetrahydro-2H-pyran 3,4,5tryltriacetate (JAK05) on gastric ulcer. The current study was designed to evaluate the anti-ulcer potential of JAK05 against ethanol-induced gastric ulcer by employing in silico, in vitro and in vivo techniques. In silico studies, JAK05 has a binding score ranging from -8.

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This study focuses on a novel lipase from Bacillus licheniformis IBRL-CHS2. The lipase gene was cloned into the pGEM-T Easy vector, and its sequences were registered in GenBank (KU984433 and AOT80658). It was identified as a member of the bacterial lipase subfamily 1.

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The evolution of energetic materials science presents new challenging tasks associated with the creation of advanced technologies for sustainable development of the future. In this work, a set of new heat-resistant high-energy materials incorporating the polynitrophenyl-1,2,5-oxadiazole scaffold enriched with azo/azoxy moieties have been designed and synthesized. Due to a smart combination of explosophoric groups and 1,2,5-oxadiazole rings, the prepared high-energy substances have excellent thermal stability (up to 300 °C), good densities (up to 1.

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Structure-guided development of selective caseinolytic protease P agonists as antistaphylococcal agents.

Cell Rep Med

December 2024

State Key Laboratory of Drug Research, Centre for Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China; Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai 264117, China. Electronic address:

Methicillin-resistant Staphylococcus aureus is a ubiquitous pathogen, posing a serious threat to human health worldwide. Thus, there is a high demand for antibiotics with distinct targets. Caseinolytic protease P (ClpP) is a promising target for combating staphylococcal infections; however, selectively activating S.

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Isothermal titration calorimetry (ITC) is a well-established and convenient label-free technique for measuring biomolecular interactions in aqueous solutions. ITC enables accurate measurement of the affinities and thermodynamic parameters, such as changes in Gibbs energy, enthalpy, and entropy, which help dissect the binding mechanisms. ITC is commonly used to study protein-protein, protein-peptide, protein-DNA, and small-molecule inhibitor binding to target proteins.

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Fluorescence polarization (FP) is a reliable and straightforward mix-and-read assay to quantify the interaction of a protein-peptide pair. Labeling the peptide with a suitable fluorophore enables the distinction between the protein-bound and protein-unbound states of a peptide by a change in the emitted light's polarization. Hereby, we present the method to establish the binding affinity for FOXO3a phosphopeptide with 14-3-3ɛ protein using FP.

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The main objective of this study is to produce novel triazoles-loaded tetrazoles, which are crucial in the development of prospective therapeutic agents in medicinal chemistry. Recent investigations have found a wide range of uses for these derivatives, and they are prospective lead molecules for the synthesis of substances with enormous therapeutic utility for various diseases, especially for bacterial therapy. New series of 1,2,3-triazole derivatives have been synthesized from methyl (2S,4S)-4-azido-1-(2,4-difluoro-3-methylbenzoyl)pyrrolidine-2-carboxylate () using a well-established click reaction that has several advantages to afford a novel heterocyclic compound based on tetrazole moieties.

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In this manuscript, twenty-one novel fluorinated piperazine-hydroxyethylamine analogues were synthesized and tested against Plasmodium falciparum (Pf). Among tested compounds, two 13 g and 14 g exhibited promising inhibitory activity on Pf3D7 with IC values of 0.28 and 0.

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C-Reactive Protein Biosensor for Diagnosing Infections Caused by Orthopedic Trauma.

Curr Med Chem

November 2024

Faculty of Chemical Engineering & Technology & Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), 02600 Arau, Perlis Malaysia.

Introduction: Infections linked to orthopedic trauma are common complications that place a significant strain on the healthcare system. Immediate identification of the infection and its severity is essential for providing effective treatment.

Method: C-reactive Protein (CRP) is a commonly used inflammatory marker in orthopedic surgery and has proven to be a valuable biomarker for diagnosing and monitoring infections.

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Malaysia, particularly Pahang, experiences devastating floods annually, causing significant damage. The objective of the research was to create a flood susceptibility map for the designated area by employing an Ensemble Machine Learning (EML) algorithm based on geographic information system (GIS). By analyzing nine key factors from a geospatial database, flood susceptibility map was created with the ArcGIS software (ESRI ArcGIS Pro v3.

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The promiscuous biotin ligase TurboID reveals the proxisome of the T3SS chaperone IpgC in .

mSphere

November 2024

Department of Chemistry and Biomolecular Sciences, Centre for Chemical and Synthetic Biology, Host-Microbe Interactions Laboratory, University of Ottawa, Ottawa, Ontario, Canada.

Promiscuous biotin ligases derived from the bacterial enzyme BirA are used to identify proteins vicinal to a bait protein, thereby defining its proxisome. Despite the popularity of this approach, surprisingly little is known about its use in prokaryotes. Here, we compared the activity of four widely used promiscuous biotin ligases in the cytoplasm of , a pathogenic subgroup of .

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Ixotrophy is a contact-dependent predatory strategy of filamentous bacteria in aquatic environments for which the molecular mechanism remains unknown. We show that predator-prey contact can be established by gliding motility or extracellular assemblages we call "grappling hooks." Cryo-electron microscopy identified the grappling hooks as heptamers of a type IX secretion system substrate.

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Application of precursor with ultra-small particle size and uniform particle distribution for ultra-high nickel single-crystal cathode materials by coprecipitation method.

J Colloid Interface Sci

February 2025

National & Local United Engineering Research Centre for Chemical Process Simulation and Intensification, Chemical Process Simulation and Optimization Engineering Research Center of Ministry of Education, Xiangtan University, Xiangtan 411100, China. Electronic address:

Ultra-high nickel single-crystal cathode materials have become the most promising for lithium-ion batteries. However, the preparation of ultra-high nickel single-crystal precursors by a continuous coprecipitation method has the disadvantages of large particle size, wide distribution, poor morphology. The extent of the inhomogeneous reactions can be more severe in single-crystal cathodes with larger particle size.

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Integrating HRMAS-NMR Data and Machine Learning-Assisted Profiling of Metabolite Fluxes to Classify Low- and High-Grade Gliomas.

Interdiscip Sci

December 2024

Biopharmaceuticals and Biomarkers Discovery Lab, School of Biochemistry and Biotechnology, University of the Punjab, Lahore, 54590, Pakistan.

Diagnosing and classifying central nervous system tumors such as gliomas or glioblastomas pose a significant challenge due to their aggressive and infiltrative nature. However, recent advancements in metabolomics and magnetic resonance spectroscopy (MRS) offer promising avenues for differentiating tumor grades both in vivo and ex vivo. This study aimed to explore tissue-based metabolic signatures to classify/distinguish between low- and high-grade gliomas.

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Nitrogen heterocyclic scaffolds retain their leading position as valuable building blocks in material science, particularly for the design of small-molecule energetic materials. However, the search for more balanced combinations of directly linked heterocyclic cores is far from being exhausted and aims to reach ideally balanced high-energy substances. Herein, we present the synthetic route to novel pyrazole-furoxan framework enriched with nitro groups and demonstrate a promising set of properties, viz.

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