Results 31 to 40 of about 17,950 (258)

Bias‐Tunable Two‐Terminal Organic Photodetector for Intelligent Imaging

Advanced Science, EarlyView.
A vertically stacked two‐terminal photodetector with a symmetric donor–acceptor–donor trilayer active exhibits reconfigurable photoresponse with bias‐tunable magnitude and polarity, together with sub‐millisecond response speed and a wide tunable output window.
Sangin Hahn, Sanghoon Park, Seunghyup Yoo   +2 more
wiley   +1 more source

Acute methemoglobinemia- Diagnosing and managing in family practice

Journal of Family Medicine and Primary Care
Methemoglobinemia is a rare but serious disorder in which hemoglobin is oxidized to methemoglobin, impairing oxygen transport. This condition can present in primary care with cyanosis and oxygen desaturation and is potentially misdiagnosed as respiratory
Raj D. Vyas
doaj   +1 more source

Biodegradable Acoustic Targeting for Ultrasound‐Supported Gene Therapy (BATUS) in Glioblastoma

Advanced Science, EarlyView.
ABSTRACT Glioblastoma (GBM) remains one of the most challenging brain malignancies due to the restrictive nature of the blood–brain barrier (BBB), which severely limits effective drug and gene delivery. To overcome this, we introduce Biodegradable Acoustic Targeting for Ultrasound‐Supported Gene Therapy (BATUS), a modular platform that enables safe ...
Gulsah Erel‐Akbaba, Jinyoung Park, Achal Duhoon, Cao Thuy Giang Nguyen, Nitu Bhaskar, Sumanta Kumar Karan, Hasan Akbaba, Parbeen Singh, Thi Bao Tram Tran, Yuhui Zhu, Zhiming Li, I'jaaz Muhammad, Xiaojun Zhang, Hoang Quan Truong, A. Daniel Davidar, Elizabeth Schmitzer, Vikas N. Vattipally, Angelica F. Lopez, Patrick Kramer, Victor M. Quiroz, Ben Bykov, Claire Hao, Amir Manbachi, Nicholas Theodore, Joshua C. Doloff, Thanh D. Nguyen   +25 more
wiley   +1 more source

Arterial Blood‐Mediated Deep‐Tissue Photoacoustic Oximetry

Advanced Science, EarlyView.
The arterial prior method (APM+) for photoacoustic oximetry is introduced, which leverages the high arterial blood oxygenation to calibrate the fluence at the artery and estimate the oxygenation of the surrounding tissue, thus circumventing the spectral coloring problem. APM+’s accuracy and consistency are shown in a series of phantom and in vivo human
Karteekeya Sastry, Junhao Zhu, Joshua Olick‐Gibson, Li Lin, Lei Li, Jigmi Basumatary, Yang Zhang, Lihong V. Wang   +7 more
wiley   +1 more source

CO-Oximetry interference by perflubron emulsion: comparison of hemolyzing and nonhemolyzing instruments [PDF]

Clinical Chemistry, 1998
Abstract Perflubron emulsion is expected to be in clinical use soon as a non-hemoglobin blood substitute. A preliminary report indicates that this new oxygen-carrying fluorocarbon interferes with the measurements of CO-oximeters. Therefore, we have quantified the interference that perflubron causes in the measurements of eight widely ...
A P, Shepherd, J M, Steinke
openaire   +2 more sources

Soft, Multi‐Wavelength Photoplethysmography Enables Reliable Neonatal Blood Pressure Monitoring Via Error Stratification

Advanced Science, EarlyView.
A soft hybrid multi‐wavelength PPG wearable acquires neonatal signals. Synchronized PPG and invasive ABP data are segmented into fixed windows. A 1D‐EfficientNet model predicts segment‐level SBP and DBP. Model performance is examined with retrospective subgroup analysis across acquisition conditions.
Wenqi Shi, Lanlan Mi, Jiarong Chen, Biao Liu, Min Wang, Zisheng Dai, Bin Liu, Ruize Gao, Yunfeng Lin, Weiwei Guo, Guoxing Wang, Wenyi Luo, Cheng Chen   +12 more
wiley   +1 more source

Three Faces of Methemoglobinemia: Drug-induced, Herbal-associated, and Congenital: A Case Series

Archives of Medicine and Health Sciences
Methemoglobinemia is a rare, potentially life-threatening disorder caused by oxidation of hemoglobin’s iron from ferrous (Fe2+) to ferric (Fe3+), impairing oxygen delivery.
Tuphan Kanti Dolai, Kaustav Ghosh, Shipla Roy   +2 more
doaj   +1 more source

Accidental dapsone ingestion leading to methemoglobinemia in a child: A case report

Journal of Pediatric Critical Care, 2019
Dapsone is a sulfone antibacterial drug used in the treatment of Leprosy and common skin conditions such as acne. Known to cause hypersensitivity syndromes apart from adverse effects such as tachycardia, tachypnea, vomiting, hemolytic anemias and ...
Venkat Sandeep Reddy, Ajay Walimbe, Bhakti Sarangi, Sanjay Lalwani   +3 more
doaj   +1 more source

Bypassing Heteronuclear MRI: Metal‐Free Organosilicon Nanotracers for Background‐Free Hotspot 1H Imaging on Clinical Hardware

Advanced Science, EarlyView.
Organosilicon micelles enable background‐free molecular magnetic resonance imaging (MRI) while remaining fully compatible with standard proton (1H) hardware. By exploiting a spectrally silent 1H window at ∼0 ppm, the silicone nanotracer allows hotspot detection by 1H chemical‐shift imaging (CSI) without metals or heteronuclei, enabling direct overlay ...
Martin Orsagh, Dominik Havlicek, Andrea Galisova, Ondrej Sedlacek, Daniel Jirak   +4 more
wiley   +1 more source

Refractory hypoxia and saturation gap in a COVID-19 patient

Practical Laboratory Medicine
Acquired methemoglobinemia, predominantly due to oxidizing medications occurs when heme iron in hemoglobin is oxidized from ferrous to ferric ion and binds oxygen irreversibly leading to functional anemia, cyanosis, and tissue hypoxia.
Abidah Mobarak, Subashini C. Thambiah, Ana Daliela Masiman, Intan Nureslyna Samsudin, Yin Ye Lai   +4 more
doaj   +1 more source