Results 71 to 80 of about 8,393 (209)

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, Volume 36, Issue 80, 5 October 2026.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Pediatric Toxidrome Simulation Curriculum: Lidocaine-Induced Methemoglobinemia

, 2021
Introduction Lidocaine is a common local anesthetic used during minor procedures performed on pediatric patients. A rare but toxic and life-threatening side effect of lidocaine is methemoglobinemia.
Anita Thomas, Scott Connelly, Ulysses Davila, Suzan Mazor, Chelsea Del Rosso, Nicole Hardy, Jean Pearce, Rebekah Burns   +7 more
core   +1 more source

Successful management of methemoglobinemia with oral ascorbic acid: Dual case reports

MRIMS Journal of Health Sciences
Methemoglobinemia is a rare blood disorder characterized by elevated levels of methemoglobin (MetHb), leading to a reduced capacity of red blood cells to carry oxygen, resulting in functional hypoxia and cyanosis.
Supriya Adiody, K. K. Krishnanand
doaj   +1 more source

MXene‐Based Electrocatalysts for Sustainable Nitrogen Conversion: From Ammonia Oxidation to Nitrogen and Nitrate Reduction

Advanced Materials Interfaces, Volume 13, Issue 20, 21 October 2026.
This review compares MXene‐based electrocatalysis for ammonia oxidation, nitrogen reduction, and nitrate reduction, highlighting reaction‐dependent differences in catalytic performance and stability. MXenes are generally more compatible with cathodic nitrogen and nitrate reduction, whereas anodic ammonia oxidation raises stability concerns.
Afaf Salah Eid, Alaa M. Ibrahim, Soon Hyung Kang   +2 more
wiley   +1 more source

BENZOCAINE INDUCED METHEMOGLOBINEMIA [PDF]

Pediatric Research, 1977
Severe methemoglobinemia developed in a healthy 14-month-old infant following the topical application of a benzocaine-containing gel administered for the relief of the discomfort of teething. Congenital methemoglobinemia and hemoglobin M disease were excluded by appropriate laboratory studies.
P L, Townes, M A, Geertsma, M R, White
openaire   +2 more sources

Understanding and Regulating C–N Coupling Pathways for Electrocatalytic Urea Synthesis From CO2 and NO3−/NO2−

Advanced Science, Volume 13, Issue 56, 9 October 2026.
Understanding and regulating C–N coupling is central to electrocatalytic urea synthesis from CO2 and NO3−/NO2−. This review outlines representative coupling pathways, summarizes carbon‐ and nitrogen‐side intermediate regulation strategies, and highlights in situ/operando tools for mechanistic clarification and catalyst design. ABSTRACT Electrocatalytic
Xingbao Chen, Zhuo Li, Lebin Cai, Paul Kilmartin, Bao Yu Xia, Ziyun Wang   +5 more
wiley   +1 more source

Iron and Other Metal Ions in Human Health and Disease

MedComm, Volume 7, Issue 10, October 2026.
Iron, copper, zinc, and calcium orchestrate cellular function through distinct yet cooperative mechanisms: redox‐active iron and copper cycle between oxidation states to act as Fenton catalysts and electron carriers in oxidative phosphorylation (OXPHOS); redox‐inert zinc serves as a structural component of zinc‐finger proteins and a catalytic cofactor ...
Xiaofeng Dai, Jitian Li
wiley   +1 more source

Metal–Organic Frameworks for Electrocatalytic Nitrate‐to‐Ammonia Conversion: A Review

ChemistryOpen, Volume 15, Issue 10, October 2026.
Electrocatalytic MOF‐based nitrate reduction transforms nitrate‐contaminated water into valuable ammonia. The process involves treating nitrate‐contaminated water. Engineering MOF catalysts with tunable structures. Activating dynamic metal sites within MOFs. Regulating charge transfer and proton availability.
Abdullah Shah, Muhammad Ilyas, Natasha Shehzad, Shah Faisal, Salman Khan, Nolubabalo Matinise   +5 more
wiley   +1 more source

A Case Report of Benzocaine-Induced Methemoglobinemia

, 2017
Methemoglobinemia is a serious medical condition characterized by the disrupted binding of oxygen to iron on hemoglobin, with a consequent impaired oxygen delivery to body tissues.
Michael P. Rivey, Chaundra R. Sewell
core   +1 more source

Treatment for a rare case of phenazopyridine-induced methemoglobinemia: a case report and mini-review

Frontiers in Medicine
Methemoglobinemia is a condition caused by elevated levels of methemoglobin (MetHb) in the blood, a reduced form of hemoglobin that cannot properly bind to oxygen, interfering with delivery to tissues.
Brendan M. Coyne, Syed M. Ishaq, Anjani Thota, Badal Thakkar   +3 more
doaj   +1 more source