Results 51 to 60 of about 49,014 (224)

Semidefinite Programming Approach for the Quadratic Assignment Problem with a Sparse Graph

open access: yes, 2017
The matching problem between two adjacency matrices can be formulated as the NP-hard quadratic assignment problem (QAP). Previous work on semidefinite programming (SDP) relaxations to the QAP have produced solutions that are often tight in practice, but ...
Ferreira, Jose F. S. Bravo   +2 more
core   +1 more source

Nanodiamond Quantum Sensors for Probing Free Radical Biology

open access: yesAdvanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

Probabilistic interaction network of evidence algorithm and its application to complete labeling of peak lists from protein NMR spectroscopy. [PDF]

open access: yesPLoS Computational Biology, 2009
The process of assigning a finite set of tags or labels to a collection of observations, subject to side conditions, is notable for its computational complexity.
Arash Bahrami   +3 more
doaj   +1 more source

Design and Synthesis of Peptide‐Polyester Conjugates for Cell‐Mediated Scaffold Degradation

open access: yesAdvanced Healthcare Materials, EarlyView.
This work describes polycaprolactone (PCL)‐based biomaterials engineered to degrade in response to cell‐secreted proteases. A fast‐degrading peptide (Fast) sequence is integrated into a PCL conjugate backbone to produce a biomaterial that is selectively degraded by multiple cell types compared to its scrambled control (ScrFast).
Korina Vida G. Sinad   +7 more
wiley   +1 more source

Spin-boson models for quantum decoherence of electronic excitations of biomolecules and quantum dots in a solvent

open access: yes, 2005
We give a theoretical treatment of the interaction of electronic excitations (excitons) in biomolecules and quantum dots with the surrounding polar solvent.
Barthel J   +31 more
core   +1 more source

Bifunctional Surfaces With Immobilized Antibodies and Bioactive Peptides Mediate Selective Capture and Proliferation of Endothelial Colony‐Forming Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
A tunable bifunctional surface is developed by combining Fc‐binding peptides and RGD motifs to present oriented antibodies alongside integrin‐mediated signaling. The platform selectively captures endothelial colony‐forming cells while promoting their adhesion and proliferation.
Hugo A. Level   +5 more
wiley   +1 more source

Molecular Thermodynamics Using Nuclear Magnetic Resonance (NMR) Spectroscopy

open access: yesInventions, 2019
Nuclear magnetic resonance (NMR) spectroscopy is perhaps the most widely used technology from the undergraduate teaching labs in organic chemistry to advanced research for the determination of three-dimensional structure as well as dynamics of ...
Viswanathan V. Krishnan
doaj   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

K48-ubiquitin-dependent proteases cut-up post-ER proteins

open access: yesNature Communications
Polyubiquitin chains, linked via K48 or K63 of ubiquitin, direct membrane proteins in the secretory system to distinct degradative fates. However, it’s unclear whether these linkage isomers are functionally interchangeable.
Annabel Y. Minard   +3 more
doaj   +1 more source

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