Results 81 to 90 of about 225,499 (292)

Hierarchically Engineered Multi‐Enzyme Nanoreactors for in vitro Drug Biosynthesis and Pathway Transplantation Into Cells

Advanced Materials, EarlyView.
A hierarchically structured metal–organic framework (eMIL) is shown to host the complete six‐enzyme biosynthesis pathway for the anti‐cancer pigment violacein, reshaping reaction dynamics and multiplying in vitro yields. eMIL nanoreactors deliver this reconstituted bacterial multi‐protein system into mammalian cells, where cell‐derived substrates and ...
Ainur Sharip, Somayah S. Qutub, Manar M. Farooqui, Walaa Baslyman, Nida Khalfay, Lukman O. Alimi, Patricia Lopez Sanchez, Lingyun Zhao, Milena Chernyshevskaia, Giovanni Colombo, Niveen M. Khashab, Stefan T. Arold, Raik Grünberg   +12 more
wiley   +1 more source

Vortex Lattices in Quantum Mechanics

, 2001
Vortex lattices are constructed in terms of linear combinations of solutions for Scr\"{o}dinger equation with a constant potential. The vortex lattices are mapped on the spaces with two-dimensional rotationally symmetric potentials by using conformal ...
Balazs, Barton, Batchelor, Bialynicki-Birula, Bohm, Bohm, Bohm, Bohm, Bohm, Briet, Castagnino, Chakaraborty, Crabtree, Das Sarma, de Broglie, Dirac, Dirac, Dirac, Dmitriyev, Ghosh, Hirschfelder, Hirschfelder, Hirschfelder, Hirschfelder, Hirschfelder, Kennard, Khare, Kobayashi, Kobayashi, Lamb, Landau, Madelung, Prange, Saffman, Schecter, Schönberg, Shimbori, Shimbori, Shimbori, Takabayasi, Takabayasi, Tsunehiro Kobayashi, Wilczek   +42 more
core   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

High-gradient microelectromechanical system quadrupole electromagnets for particle beam focusing and steering

Physical Review Special Topics. Accelerators and Beams, 2015
Recent advancements in microelectromechanical system (MEMS) fabrication techniques have enabled the batch-fabrication of quadrupole MEMS electromagnets producing 100 mT-scale field across sub-mm gaps with the potential for transformational advances in ...
Jere Harrison, Yongha Hwang, Omeed Paydar, Jimmy Wu, Evan Threlkeld, James Rosenzweig, Pietro Musumeci, Rob Candler   +7 more
doaj   +1 more source

Elastic constants of nematic liquid crystals of uniaxial symmetry

, 2004
We study in detail the influence of molecular interactions on the Frank elastic constants of uniaxial nematic liquid crystals composed of molecules of cylindrical symmetry.
Allen M P, Brook-Levinson E T, Chandrasekhar S, de Jau W H, de Jau W H, Denton A R, Gray C G, Hara M, Kimura H, Kohli M, Madhusudana N V, Madhusudana N V, Mishra P, Nakajima N, Osipov M A, Pines A, Poniewierski A, Priest R G, Ram J, Rott L A, Rowell J C, Singh S, Singh Y, Singh Y, Singh Y, Stecki J, Tsykalo A I, van der Meer B W, Zakhrov A V   +28 more
core   +2 more sources

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

Chaos of Charged Particles in Quadrupole Magnetic Fields Under Schwarzschild Backgrounds

Universe
A four-vector potential of an external test electromagnetic field in a Schwarzschild background is described in terms of a combination of dipole and quadrupole magnetic fields. This combination is an interior solution of the source-free Maxwell equations.
Qihan Zhang, Xin Wu
doaj   +1 more source

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source

Classical Analysis of Phenomenological Potentials for Metallic Clusters

, 1994
The classical trajectories of single particle motion in a Wodds-Saxon and a modified Nilsson potential are studied for axial quadrupole deformation. Both cases give rise to chaotic behaviour when the deformation in the Woods-Saxon and the l**2 term in ...
A. Bohr, A. Bulgac, C. Brechignas, C. Yannouleas, H. Nishioka, J. Blocki, J. Lerme, J. Mansikka-ako, K. Clemenger, K. Clemenger, M. Brack, M. C. Gutzwiller, N. Pavloff, R. Arvieu, R. G. Nazmitdinov, S. Bjornholm, S. Frauendorf, T. P. Martin, V. M. Strutinsky, W. A. Heer, W. D. Heiss, W. D. Heiss, W. Kohn   +22 more
core   +2 more sources

Reactive Laser Additive Manufacturing of Hierarchically Structured Aerogels

Advanced Materials, EarlyView.
Reactive laser additive manufacturing transforms printing into a chemically active synthesis step. Salt‐enabled transient reaction environments drive in situ formation of hierarchically structured graphitic aerogels with microtubular and nanoscale features in seconds.
Shuichiro Hayashi, Ankit Das, Marco Rupp, Elizabeth Stump, Joshua Miller, Michele L. Sarazen, Craig B. Arnold   +6 more
wiley   +1 more source