Results 81 to 90 of about 689,520 (364)

Urea formaldehyde

California Agriculture, 1962
California Agriculture - All ...
T Byrne, O Lunt
doaj  

Toward Better Understanding of Molecular Fluorophore Covalent Binding to Carbon Dots

Small Structures
The mechanism of the molecular photoluminescence of carbon dots (CDs) has gained much attention recently, due to several reports of formation of small fluorophore species at reaction conditions applied in CD synthesis.
Wiktor Kasprzyk, Piotr P. Romańczyk, Katarzyna Starzak, Alicja Wysocka, Łukasz Waluda, Tomasz Świergosz, Nataliia V. Bashmakova, George V. Klishevich, Andriy M. Dmytruk, Illya S. Klyuyev, Mykhailo V. Bondar   +10 more
doaj   +1 more source

Effect of Urea on Drug Extraction Efficiency in Reverse Iontophoresis

Pharmaceutics
Background/Objectives: Reverse iontophoresis (R-IP) is a technology that transdermally delivers components from inside the body to outside the body using electroosmotic flow (EOF) generated by applying a low electric current through the skin.
Rie Yamauchi, Shuji Ohno, Yasuko Obata
doaj   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Role of urea and methylamines in buoyancy of elasmobranchs

, 1994
The possible role of urea and trimethylamine oxide (TMAO) in providing positive buoyancy has been examined for elasmobranch fishes. TMAO has a considerably lower density than an equimolar solution of urea, and solutions of both TMAO and urea are ...
Withers, P, Hefter, G., Pang, T.
core  

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

Advanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera, Chiranjeevi Kanike, Appurva Tiwari, Hongyan Wu, Larry D. Unsworth, Ben Bin Xu, Xuehua Zhang   +6 more
wiley   +1 more source

Rasio Urea-Metanol Dalam Proses Metanolisis Urea Secara Visual

, 2010
Telah dilakukan perbaikan rasio urea-metanol sebagai reaktan dalam pembuatan dimetil karbonat (DMC). Dimetil Karbonat adalah bahan dasar dalam pembuatan toluen diisosianat yang merupakan hardener Propelan Roket LAPAN RPS 420.
Luthfia Hajar Abdillah
core  

A comparison of Erythropoietin hormone level at male diabetic patients with and without nephropathy

Kufa Journal for Nursing Sciences, 2013
Objective: It aims to estimate the level of Erythropoietin hormone at the serum of diabetic patient males with and without nephropathy. Methodology: the present study was carried out in the center of Diabetes mellitus and Endocrinology in AL-Sader ...
Esraa Mahdi Zahid, Saher Muhmood Jwad AL-Jammali   +1 more
doaj   +1 more source

Bioinspired Mechanically Robust Organic–Inorganic Hybridized Bio‐Adhesives With up to 50% Inorganic Components by Bi‐Continuous Phase Engineering

Advanced Functional Materials, EarlyView.
A robust plant protein adhesive was prepared by fabricating a bi‐continuous organic–inorganic hybrid structure. Compared with traditional organic–inorganic hybrid adhesives, the addition amount of inorganic phase is increased from 0.2%–3.0% to 50%, and the strength and toughness are increased by 6 and 121 times, respectively.
Zheng Liu, Wenlong Luo, Xu Yang, Xin Zhang, Yuru Zhu, Jingchao Li, Jianzhang Li, Jing Luo, Zhezhe Zhou, Pingan Song, Qiang Gao   +10 more
wiley   +1 more source

Coordination compounds of indium, gadolinium, and erbium nitrates with low urea content

Тонкие химические технологии
Objectives. To date, compounds of rare earth nitrates with urea in a ratio of 1:4 and indium in a ratio of 1:6 have been synthesized and structurally characterized.
E. V. Savinkina, I. A. Karavaev, E. K. Bettels, G. A. Buzanov, A. S. Kubasov   +4 more
doaj   +1 more source