Results 31 to 40 of about 8,903 (209)

Quality of Vitamin B12 Supplements Regarding Vitamin Assay and Content of Heavy Metals

Molecules
Vegetarians must rely on supplements to meet the recommended daily intake of vitamin B12. Therefore, it is essential to establish a rapid, inexpensive, and reliable method of determining B12 levels in order to accurately characterize and assess the ...
Magdalena Krawczyk-Coda, Agnieszka Zgoła-Grześkowiak, Ewa Stanisz   +2 more
doaj   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

Advanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo, Mi Jeong Lee, Hyun Wook Kang, Seonhee Byeon, Soo‐Kyoung Choi, Nakwon Choi, Seung‐Woo Cho, Yoonhee Jin   +7 more
wiley   +1 more source

Determination of Chlorophyll and Carotenoids Present in the Seeds of the Plant Family Apiaceae and the Impact on Seed Quality

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2018
In this study, we assessed the content of chlorophyll a and b, β-carotene and lutein in seeds of carrot, celery, dill, parsley and parsnip commercial varieties by spectrophotometric method.
Marie Grulichová, Peter Mendel, Václav Trojan, Tomáš Vyhnánek   +3 more
doaj   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Spectrophotometric evaluation of coronal discoloration induced by bioceramic root canal filling materials

Journal of Oral Research, 2021
The aim of this study is to evaluate the crown discoloration induced by bioceramic root canal filling materials (OrthoMTA and iRoot SP) compared to AH Plus.
Afaf Al-Haddad, Sebastian Yung Yung Kah weng, Jannisa Adelene Anak jawa, Shahirah Zainol Abidi, Tracie Lau Phui Yi, Yasmin Ryzall, K Kranthi Raja   +6 more
doaj   +1 more source

Neutrophil‐Mimetic MRI Enables Ultra‐Early Detection of Vascular Inflammation After Stroke

Advanced Healthcare Materials, EarlyView.
In this study, we developed neutrophil‐mimetic MRI probes that detect ultra‐early neuroinflammation following ischemic stroke by targeting E‐selectin. Within seconds of their injection, these microparticles mimic initial leukocyte adhesion to the activated cerebral endothelium.
Marion Isabelle Morvan, Damien Levard, Eloïse Lemarchand, Amal Boublay, Charly Helaine, Jolan Malherbe, Mikaël Naveau, Didier Goux, Igor Khalin, Ankita Talukdar, Cheun Pelleter, Charlène Jacqmarcq, Erwan Baudron, Isabelle Bardou, Sara Martinez de Lizarrondo, Maxime Gauberti, Denis Vivien, Antoine Philippe Fournier   +17 more
wiley   +1 more source

Spectrophotometric investigation of the Fe(III)-disulphonate hydroquinone complex [PDF]

Journal of the Serbian Chemical Society, 2005
Iron(III) form an indigo-blue complex with the disulphonated product of hydroquinone (K2S2Hy) in acid media with an absorption maxima at 600 nm.
Obradović Mirjana V., Mitić Snežana S., Tošić Snežana B., Pavlović A.N.   +3 more
doaj   +1 more source

Near‐Infrared‐Driven Metal–Organic Frameworks‐Based Nanorobots for Controlled Photothermal‐Chemical Therapy Synergistic Induction of Cancer Cell Death

Advanced Robotics Research, EarlyView.
To achieve efficient cancer cell death, a bowl‐shaped PDA@UiO‐66@DOX nanorobot drug‐delivery nanoplatform was developed. Near‐infrared irradiation not only drives the nanorobot to exhibit self‐thermophoretic motion and elevates temperature but also triggers Doxorubicin (DOX) release via hyperthermia, enhancing cancer cells uptake of DOX and thereby ...
Tong Lin, Jie Yang, Yongcheng Li, Yuepeng Cai, Xiaosong Zhou, Ting Chen, Renfeng Dong   +6 more
wiley   +1 more source

Spectrophotometric Studies of 4-[N’-(4-Imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid as a Reagent for the Determination of Palladium

Acta Chimica Slovenica, 2015
The spectrophotometric behavior of a new, first-time synthesized reagent – 4-[N’-(4-imino-2-oxo-thiazolidin-5-ylidene)hydrazino]-benzenesulfonic acid (ITHBA), has been investigated.
Lesya Lozynska, Oleksandr Tymoshuk, Taras Chaban   +2 more
doaj   +1 more source

Protonation of maleic and fumaric acid in aqueous sulfuric acid solutions [PDF]

Journal of the Serbian Chemical Society, 2000
The protonations of maleic and fumaric acid in an acidic medium (aqueous solutions of sulfuric acid) were followed spectrophotometrically at room temperature. The acid-base equilibria were characterised qualitatively and quantitatively. The pKBH+
Jankovska Katica, Šoptrajanova Lidija, Spirevska Ilinka   +2 more
doaj   +1 more source