Results 81 to 90 of about 362,643 (306)

Direct hemoglobin measurement by monolithically integrated optical beam guidance [PDF]

, 2005
We present a concept for optical beam guidance by total internal reflection (TIR) at V-grooves as retro reflectors which are monolithically integrated on a microfluidic "lab-on-a-disk".
Brefka, T., Brenner, T., Dube, M., Ducrée, Jens, Grumann, M., Mittrnann, K., Riegger, L., Steigert, J., Zengerle, Roland   +8 more
core   +1 more source

DIRECT COLORIMETRIC ANALYSIS OF STILBESTROL DIPROPIONATE [PDF]

Bulletin of Pharmaceutical Sciences. Assiut, 1978
A convenient and specific spectrophotometric determination of stilbestrol and stilbestrol dipropionate is developed by interaction with 2,3,5-triphenyltetrazolium chloride at 50°C for 45 minutes and subsequent measurement of the color formed at 485 nm.
Nabil Omar, Nawal El-Rabbat
openaire   +1 more source

Paracrine Factor Local Gradient‐Generating System for Engineering Perfusable Vascularized Hepatocyte Tissues with Perfusion‐Induced Proliferation

Advanced Healthcare Materials, EarlyView.
A paracrine factor local gradient (PFLG)‐generating system enables microvessel penetration across 3D hepatocyte tissues. The resulting vascularized constructs recapitulate hepatic sinusoidal hepatocyte—endothelial contact architecture and enhance hepatic functions in vitro.
Yen‐Hsiang Huang, Tadahiro Yamashita, Ryo Sudo   +2 more
wiley   +1 more source

Smartphone-assisted colorimetric determination of chemical equilibrium constant (Kc) as an alternative method in high school chemistry

Chemistry Teacher International
This study aims to develop an alternative method for the determination of the chemical equilibrium constant (Kc) of thiocyanatoiron(III) complex ion, based on colorimetric analysis of smartphone-captured images.
Nugultham Kulthida, Tamuang Suparb, Seebunrueng Ketsarin, Jarujamrus Purim, Supasorn Saksri   +4 more
doaj   +1 more source

Turning Image Sensors into Position and Time Sensitive Quantitative Colorimetric Data Sources with the Aid of Novel Image Processing/Analysis Software

Sensors, 2020
Still images and video images acquired from image sensors are very valuable sources of information. From still images, position-sensitive, quantitative intensity, or colorimetric information can be obtained.
Yeongsik Yoo, Woo Sik Yoo
doaj   +1 more source

Chemoenzymatic elaboration of monosaccharides using engineered cytochrome P450_(BM3) demethylases [PDF]

, 2009
Polysaccharides comprise an extremely important class of biopolymers that play critical roles in a wide range of biological processes, but the synthesis of these compounds is challenging because of their complex structures.
Arnold, Frances H., Bastian, Sabine, Bennett, Clay S., Chen, Mike M., Fu, Yu, Greenberg, William A., Lewis, Jared C., Mitsuda, Yuuichi, Wong, Chi-Huey   +8 more
core   +1 more source

Diels‐Alder Click Chemistry as a Dynamic‐Covalent Crosslinking Method in Spheroid‐Encapsulating Hydrogels for Cartilage Engineering

Advanced Healthcare Materials, EarlyView.
This research shows the development of hydrogels with Diels‐Alder click chemistry for engineering cartilage‐like tissue. The hydrogels support cartilage spheroids which could be cultured for at least 28 days. Furthermore, the spheroids showed a tendency to fuse together into a more consistent construct, and produced important components needed for ...
Sanne M. van de Looij, Antonia G. Vasilopoulou, Lennard Spauwen, Antoinette van den Dikkenberg, Jasmijn V. Korpershoek, Mylene de Ruijter, Jos Malda, Bas G. P. van Ravensteijn, Tina Vermonden   +8 more
wiley   +1 more source

Development of a Smartphone-Linked Immunosensing System for Oxytocin Determination

Biosensors
We report an optical immunosensing system for oxytocin (OXT) based on image analysis of color reactions in an enzyme-linked immunosorbent assay (ELISA). We employed a miniaturized optical immunosensing unit that was functionally connected to an LED and a
Miku Sarubo, Yoka Suzuki, Yuka Numazaki, Hiroyuki Kudo   +3 more
doaj   +1 more source

Differentiation of Anatomic Entities in the Dog Stifle Joint Following S10B Plastination: Comparative Colorimetric and Radiological Investigations

Acta Veterinaria, 2019
The knee joint is not only the most important and complex structure to present during anatomy lectures, but also a significant region for radiologists and orthopedicians.
Bakici Caner, Akgun Remzi Orkun, Ekim Okan, Insal Burcu, Kaya Ufuk, Bilgili Hasan, Bumin Ali, Cakir Ahmet   +7 more
doaj   +1 more source

Effect of electrical stimulation and others genetic and environmental factors on colour of lamb meat [PDF]

, 2006
The research aimed to assess the effect of breed, sex, age at slaughter, rearing system and electrical stimulation on some colorimetric characteristics measured on the muscles Longissimus dorsi (LD), Gluteobiceps (Gb), Semimembranosus (Sm) and Rectus ...
BARONE, CARMELA MARIA ASSUNTA, COLATRUGLIO, PASQUALE, CONSOLANTE D., GIROLAMI A., MATASSINO D., ZULLO, ANTONIO   +5 more
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