Results 231 to 240 of about 56,741 (293)

Developing Micro/Nanostructured Fluidic Mixing Technology for Biomedical Applications

Advanced Science, EarlyView.
This review critically evaluates how micro/nanostructured mixing technologies are redefining biomedical research. By synergizing fundamental analysis, numerical modeling, structural design, and external field manipulation, these systems attain unprecedented control over mass transport.
Junkai Wang, Hanxu Chen, Yile Fang, Yuanjin Zhao   +3 more
wiley   +1 more source

A Portable and Dual‐Button Microneedle Device Enables Intelligent Multimodal Laser Sensing

Advanced Science, EarlyView.
A portable and dual‐button microneedle device enables rapid interstitial fluid sampling. Coupled with multimodal laser sensing and AI‐assisted data processing, the platform enables simultaneous molecular and elemental analysis for minimally invasive and multiplexed health assessment toward point‐of‐care diagnostics.
Yuanchao Liu, Xiujuan Hu, Shengqun Shi, Bowen Li, Zhixing Ge, Yunchen Long, Chaochao Sun, Annan Chen, Bingbing Gao, Lianbo Guo, Condon Lau, Wei Luo, Chwee Teck Lim   +12 more
wiley   +1 more source

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Rare earth element separations by high-speed counter-current chromatography

Journal of Chromatography A, 2022
Following the initial development of High-Speed Counter-Current Chromatography (HSCCC) in the 1960s, several studies have explored its applicability in the separation of rare earth elements (REEs). More recently, however, HSCCC publications have transitioned towards the separation of natural products or pharmaceuticals, leaving the application for REEs
Mateusz Dembowski, John E. Rowley, Kevin Boland, Janelle Droessler, David A. Hathcoat, Alexandria Marchi, George S. Goff, Iain May   +7 more
openaire   +2 more sources

High-speed counter-current chromatography of apple procyanidins

Journal of Chromatography A, 2000
Apple procyanidins were separated by high-speed counter-current chromatography using a type-J multilayer coil planet centrifuge. Several two-phase solvent systems with a wide range of hydrophobicities from a non-polar hexane system to polar n-butanol systems were evaluated their performance in terms of the partition coefficient and the retention of the
Y, Shibusawa, A, Yanagida, A, Ito, K, Ichihashi, H, Shindo, Y, Ito   +5 more
openaire   +2 more sources

Axial dispersion coefficient in high-speed counter-current chromatography

Journal of Chromatography A, 2009
Experimental measurements of axial dispersion coefficients in high-speed counter-current chromatography have been carried out in the single-phase and two-phase modes. Axial dispersion coefficients were calculated from the residence time distribution curve (or the elution profile).
Zhao, Chun-Xia, Xua, Ya-Lan, He, Chao-Hong   +2 more
openaire   +3 more sources

Sample capacity in preparative high-speed counter-current chromatography

Journal of Chromatography A, 2007
High-speed counter-current chromatography (HSCCC) is a versatile technique in preparative separation and purification of pure compounds from complex matrices. As a preparative chromatography, there is a need to maximize the column production. Based on the plate theory of Van Deemter, the effect of the sample load on the separation was investigated in a
Zhao, Chun-Xia, He, Chao-Hong
openaire   +3 more sources

Improved spiral disk assembly for high-speed counter-current chromatography

Journal of Chromatography A, 2003
The spiral disk for type-J high-speed counter-current chromatography (HSCCC) has been improved by placing short segments of PTFE (tetrafluoroethylene) tubing into the channel at regular intervals. The best results were obtained with a four-channel spiral column using 600 spacers, which significantly improved stationary phase retention and partition ...
Yoichiro, Ito, Fuquan, Yang, Paul, Fitze, Jimmie, Powell, David, Ide   +4 more
openaire   +2 more sources

Separation of spiramycin components using high-speed counter-current chromatography

Journal of Chromatography A, 2000
High-speed counter-current chromatography was successfully applied to the separation of the main components of spiramycin. A 25-mg quantity of sample was separated using a two-phase solvent system composed of n-hexane-ethyl acetate-methanol-water (3:6:5:5), and the fractions were analyzed by high-performance liquid chromatography and fast atom ...
H, Oka, K, Harada, M, Suzuki, Y, Ito
openaire   +2 more sources

Preparative separation of pyrrolizidine alkaloids by high-speed counter-current chromatography

Journal of Chromatography A, 1996
We have applied a high-speed counter-current chromatography (CCC) technique to the separation and purification of pyrrolizidine alkaloids from Amsinckia tessellata, Symphytum spp., Trichodesma incanum (Boraginaceae), and Senecio douglasii var. longilobus (Asteraceae).
R A, Copper, R J, Bowers, C J, Beckham, R J, uxtable   +3 more
openaire   +2 more sources

Separation of rare earth elements by high-speed counter-current chromatography

Journal of Chromatography A, 1991
Besides being widely used in electronic and glass industries, rare earth elements have recently been found to have important biological effects including the ability to stabilize and enhance interferon activity [J.J. Sedmak and S.E. Grossberg, J. Gen. Virol, 52 (1981) 195].
E, Kitazume, M, Bhatnagar, Y, Ito
openaire   +2 more sources