Results 151 to 160 of about 59,758 (308)

Photosynthesis and calcification in the calcifying algae Halimeda discoidea studied with microsensors

, 2001
With microsensors, we measured the steady‐state microprofiles of O2, pH and Ca2+ on the topside of young segments of Halimeda discoidea, as well as the surface dynamics upon light–dark shifts. The effect of several inhibitors was studied.
de Beer, D., Larkum, A.
core  

Potential of 1-(1-napthylmethyl)-piperazine, an efflux pump inhibitor against cadmium-induced multidrug resistance in Salmonella enterica serovar Typhi as an adjunct to antibiotics. [PDF]

Braz J Microbiol, 2021
Kaur UJ, Chopra A, Preet S, Raj K, Kondepudi KK, Gupta V, Rishi P.   +6 more
europepmc   +1 more source

Polyoxometalate as Hydrogen–Electron Hub in Metal–Organic Complex for Electrocatalytic Nitrate Reduction to Ammonia

Advanced Science, EarlyView.
To tackle low electrocatalytic nitrate reduction to ammonia efficiency in neutral media, this work designs chain‐like dinuclear/trinuclear polyoxometalate‐based metal‐organic complexes. Metal clusters provide nitrate adsorption/activation sites, while polyoxometalates (POMs) drive water dissociation to generate active hydrogen (*H) that migrates to ...
Qiushuang Jiang, Xinming Wang, Shengji Tian, Haijun Pang, Yongbin Song, Huiyuan Ma   +5 more
wiley   +1 more source

Tannic Acid-Stabilized Silver Nanoparticles Used in Biomedical Application as an Effective Antimelioidosis and Prolonged Efflux Pump Inhibitor against Melioidosis Causative Pathogen. [PDF]

Molecules, 2021
Srichaiyapol O, Thammawithan S, Siritongsuk P, Nasompag S, Daduang S, Klaynongsruang S, Kulchat S, Patramanon R.   +7 more
europepmc   +1 more source

Methylation‐Induced Permanent Charge Polarization in Covalent Organic Frameworks for Visible Light‐Driven Water Decontamination and Disinfection

Advanced Science, EarlyView.
A targeted in situ methylation strategy is developed to engineer cationic centers in a quinoline‐linked COF (NQ‐COFS1‐Me), creating a strong built‐in electric field, which effectively suppresses excitonic effects and promotes charge separation. The optimized material demonstrates powerful photocatalytic ROS generation for rapid bacterial inactivation ...
Xuewen Peng, Huaji Pang, Niu Feng, Dekang Huang, Chunpeng Jiao, Jingbin Zeng, Yonggang Xiang, Yiping Chen   +7 more
wiley   +1 more source

Selenocompounds as Potent Efflux Pump Inhibitors on Gram‐positive Bacteria

ChemMedChem
AbstractIn recent years, selenocompounds have gained increasing attention as potential anticancer and antibacterial agents. Several selenoderivatives have been confirmed to act as MDR efflux pump inhibitors, based on their in vitro results against the bacterial AcrAB‐TolC system and the cancer MDR efflux pump P‐glycoprotein. Efflux pumps can contribute
Annamária Kincses, Nikoletta Szemerédi, Miguel Benito‐Lama, Dávid Dózsai, Ákos Csonka, Enrique Domínguez‐Álvarez, Gabriella Spengler   +6 more
openaire   +4 more sources

Asymmetric Cu─N─Ru Bridgedsite Nanozyme‐Loaded Injectable Thermogel Boosts Cuproptosis‐Like Death for Multidrug‐Resistant Urinary Tract Infections

Advanced Science, EarlyView.
To address multidrug‐resistant urinary tract infections (MDR‐UTIs), we developed Cu‐ZIF8‐Ru nanozyme featuring an asymmetric Cu─N─Ru catalytic site. This unique structure enhances multienzyme‐mimetic activity, eradicating resistant bacteria by inducing a cuproptosis‐like death pathway through intracellular Cu2+ accumulation and energy depletion.
Guanlin Li, Shike Zhang, Jinggong Liu, Xin Wang, Heng Wang, Hongcan Yang, Yuhao Zhou, Wen Liu, Hongxing Liu, Wenqi Wu   +9 more
wiley   +1 more source

Efflux pump-mediated resistance to new beta lactam antibiotics in multidrug-resistant gram-negative bacteria

Communications Medicine
The emergence and spread of bacteria resistant to commonly used antibiotics poses a critical threat to modern medical practice. Multiple classes of bacterial efflux pump systems play various roles in antibiotic resistance, and members of the resistance ...
Augusto Dulanto Chiang, John P. Dekker
doaj   +1 more source

Targeting the Mapk13‐Tcf1‐Slc7a5 Axis via One‐Carbon Metabolic Regulation to Prevent Chronic Allograft Vasculopathy

Advanced Science, EarlyView.
This study emphasizes the role of the Mapk13‐Tcf1‐Slc7a5‐methionine metabolism axis in stem‐like CD4+ T cells. Moreover, it uncovers the mechanism through which limiting one‐carbon metabolism in CD4+ stem‐like T cells suppresses the tide of chronic allograft vasculopathy, offering potential targets to promote long‐term graft survival.
Wang Yi, Di Wu, Jing Liu, Shi Chen, Liu Song, Bin Xie, Aini Xie, Peixiang Lan, Zhishui Chen   +8 more
wiley   +1 more source

A Cascade Recognition of Activatable Probe for Fluorescence Navigation Glioblastoma Surgery: Overcoming Blood‐Brain Barrier and Off‐Target Limitations

Advanced Science, EarlyView.
A cascade recognition of activatable probe ANG‐hCy‐MC is used for high‐precision depiction of glioblastoma (GBM) margin. This probe crosses the blood‐brain barrier (BBB) through LRP1 receptor‐mediated transport and provides excellent fluorescence signal contrast between the tumor and normal tissues, thereby enabling ultra‐selective imaging and precise ...
Xinru An, Yu Guo, Yongning Bian, Yanli Tan, Chuan Fang, Hengzhu Zhang, Xueqian Chen, Lin Yuan, Dongdong Su   +8 more
wiley   +1 more source