Results 21 to 30 of about 96,771 (257)

Targeted Photodynamic Therapy: A Novel Approach to Abolition of Human Cancer Stem Cells

International Journal of Optics, 2018
Cancer is a global burden that has prompted extensive research into prevention and treatment, over many decades. Scientific studies have shown that subset of cells within a tumour, known as cancer stem cells (CSCs), are responsible for tumourigenesis ...
Anine Crous, Elvin Chizenga, Natasha Hodgkinson, Heidi Abrahamse   +3 more
doaj   +1 more source

The hospital environment versus carriage: transmission pathways for third-generation cephalosporin-resistant bacteria in blood in neonates in a low-resource country healthcare setting

Scientific Reports, 2022
Neonatal bloodstream infections (BSI) can lead to sepsis, with high morbidity and mortality, particularly in low-income settings. The high prevalence of third-generation cephalosporin-resistant organisms (3GC-RO) complicates the management of BSI ...
Dory Kovacs, Vitus Silago, Delfina R. Msanga, Stephen E. Mshana, Jeremiah Seni, Katarina Oravcova, Louise Matthews   +6 more
doaj   +1 more source

Enhancing Oxygen Reduction Reaction Activity on Pt/C Catalysts for PEFCs Using Phosphonium Ionic Liquid Layers: Effects of Proton Introduction and Physicochemical Properties

Electrochemistry
Polymer electrolyte fuel cells (PEFCs) have attracted significant attention as clean energy conversion systems. Pt nanoparticles are commonly used as cathode catalysts in PEFCs due to their high activity for the oxygen reduction reaction (ORR).
Hirohisa YAMADA, Takuya OKADA, Mitsuhiro MATSUMOTO, Yu YAO, Uta ANDO, Yuri OI, Toshikazu HIGASHI, Yohtaro INOUE, Katsuhiko TSUNASHIMA   +8 more
doaj   +1 more source

Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane, Valentina Giunchiglia, Michael C. B. David, Magdalena A. Kolanko, William R. Trender, Peter J. Hellyer, Harmeena Kaur, David J. Sharp, Christopher Carswell, Paresh A. Malhotra, Adam Hampshire   +10 more
wiley   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Density functional theory study of active sites on nitrogen-doped graphene for oxygen reduction reaction

Royal Society Open Science, 2021
Oxygen reduction reaction (ORR) remains challenging due to its complexity and slow kinetics. In particular, Pt-based catalysts which possess outstanding ORR activity are limited in application with high cost and ease of poisoning.
Ping Yan, Song Shu, Longhua Zou, Yongjun Liu, Jianjun Li, Fusheng Wei   +5 more
doaj   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

Unrevealing the Impact of Annealing Condition on Catalytic Activity of PtNi Alloy Electrode Towards Oxygen Reduction Reaction

Indonesian Journal of Chemistry
Alloying platinum (Pt) with transition metals such as nickel (Ni) has been an effective approach for reducing Pt loading and enhancing catalytic activities towards the sluggish oxygen reduction reaction (ORR) on the cathode of proton exchange membrane ...
Anindya Pramudya Wardhani, Salwaa Tanaya, Retna Deca Pravitasari, Damisih Damisih, Dewi Kusuma Arti, Sri Rahayu, Muhammad Didik Gumelar, Elok Fidiani   +7 more
doaj   +1 more source

Ultrafast Thermal Shock Synthesis of CuNiSnLa Medium‐Entropy Metallic Glass for Sustainable Nitrogen Fixation via Plasma‐Coupled Electrocatalysis

Advanced Functional Materials, EarlyView.
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen, Peng‐Jun Deng, Yang Liu, Shenglong Huang, Shuo Sun, Haoxuan Li, Jiajia Lu, Panagiotis Tsiakaras   +7 more
wiley   +1 more source