Results 71 to 80 of about 345,394 (286)

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Carrier and Light Trapping in Graded Quantum Well Laser Structures

, 2000
We investigated the carrier and light trapping in GaInAs/AlGaAs single quantum well laser structures by means of time resolved photoluminescence and Raman spectroscopy.
Aichmayr, G., Calleja, J. M., Forchel, A., Martin, M. D., Pascual, C., Reithmaier, J. P., Schafer, F., van der Meulen, H., Vina, L.   +8 more
core   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

Effects of Infrared Optical Trapping on Saccharomyces cerevisiae in a Microfluidic System

Sensors, 2017
Baker’s yeast (Saccharomyces cerevisiae) represents a very popular single-celled eukaryotic model organism which has been studied extensively by various methods and whose genome has been completely sequenced.
Zdeněk Pilát, Alexandr Jonáš, Jan Ježek, Pavel Zemánek   +3 more
doaj   +1 more source

Trapping of Bose-Einstein condensates in a three-dimensional dark focus generated by conical refraction

, 2017
We present a novel type of three-dimensional dark focus optical trapping potential for ultra-cold atoms and Bose-Einstein condensates. This 'optical bottle' is created with blue-detuned laser light exploiting the phenomenon of conical refraction ...
Ahufinger, V., Birkl, G., Küber, J., Lind, L., Mompart, J., Pfeiffer, D., Schmaltz, F., Turpin, A.   +7 more
core   +1 more source

Matrix metalloproteinase‐9 regulates cell adhesion and membrane protrusive activity of ovarian cancer cells

FEBS Open Bio, EarlyView.
Matrix metalloproteinase‐9 (MMP9) drives ovarian cancer progression. Using MMP9‐null cells (M9‐KO) created from ovarian cancer cells, we found MMP9 loss did not block Epidermal Growth Factor (EGF)‐driven E‐cadherin dissolution or EMT but delayed and reduced EGF‐driven membrane protrusions. Transient MMP9 re‐expression drove membrane protrusion.
Claire Strauel, Sam Bennett, Natalie Ehlinger, Nelson Cook, Katelyn Marvin, Caleb L. Lines, Sam Reyes, Brooke Kirby, Shawn M. Ellerbroek   +8 more
wiley   +1 more source

Trapping light, revealing properties: Laser trapping as a powerful tool for photoluminescence spectroscopy

Chemical Physics Impact
Laser trapping, a non-contact technique for manipulating microscopic objects, has gained prominence in scientific research. When coupled with fluorescence spectroscopy, it offers a powerful tool for exploring material properties.
Dr. Md. Jahidul Islam, Nashin Sayara, Tasnia Talukder, Mohammad Harun-Ur-Rashid   +3 more
doaj   +1 more source

Plasmonic Rainbow Trapping Structures for Light Localization and Spectrum Splitting [PDF]

, 2011
“Rainbow trapping” has been proposed as a scheme for localized storage of broadband electromagnetic radiation in metamaterials and plasmonic heterostructures.
Atwater, Harry, Jang, Min Seok
core   +1 more source

Photon Management in Two-Dimensional Disordered Media

, 2013
Elaborating reliable and versatile strategies for efficient light coupling between free space and thin films is of crucial importance for new technologies in energy efficiency.
A Aspect, A Bozzola, A Lagendijk, A Polman, A Taflove, AF Oskooi, C Battaglia, C Rockstuhl, C Wiesmann, D Vollhardt, Diederik S. Wiersma, DM Callahan, E Akkermans, E Yablonovitch, ED Palik, F Riboli, Francesco Riboli, G Brown, H Noh, HA Atwater, I Schnitzer, J Wang, J Yang, JD Joannopoulos, JE Lye, Kevin Vynck, LF Rojas-Ochoa, M Burresi, M Florescu, M Skoge, MA Green, Matteo Burresi, MM Sigalas, P Sebbah, P Sebbah, P Sheng, P Spinelli, RJP Engelen, S Pillai, SB Mallick, SB Mallick, T Schwartz, VE Ferry, X Meng, X Sheng, Y Yao, Z Yu   +46 more
core   +1 more source

The Collapsible Light Trap: a portable Pennsylvania Light Trap for collecting aquatic insects

Anais da Academia Brasileira de Ciências
A Collapsible Light Trap (CLT) for collecting insects, particularly aquatic insects, is described here. CLT is a modified Pennsylvania Light Trap with the advantage of being collapsible and lightweight to be carried in a small backpack and very easy to set up in the field.
JORGE LUIZ NESSIMIAN, ALLAN PAULO M. SANTOS, BRUNNO HENRIQUE L. SAMPAIO, LEANDRO L. DUMAS, ANA MARIA PES, NELSON FERREIRA-JR   +5 more
openaire   +4 more sources