Results 31 to 40 of about 403,971 (148)

In vitro transport of methotrexate by Drosophila Multidrug Resistance-associated Protein. [PDF]

open access: yesPLoS ONE, 2018
Methotrexate (MTX) is a widely used chemotherapeutic agent, immune suppressant and antimalarial drug. It is a substrate of several human ABC proteins that confer multidrug resistance to cancer cells and determine compartmentalization of a wide range of ...
Agnes Karasik   +2 more
doaj   +1 more source

Guanine-based amphiphiles: synthesis, ion transport properties and biological activity

open access: yesBioorganic & Medicinal Chemistry, 2015
Novel amphiphilic guanine derivatives, here named Gua1 and Gua2, have been prepared through few, simple and efficient synthetic steps. In ion transport experiments through phospholipid bilayers, carried out to evaluate their ability to mediate H(+) transport, Gua2 showed high activity.
MUSUMECI, DOMENICA   +5 more
openaire   +4 more sources

Overcrowding induces fast colloidal solitons in a slowly rotating potential landscape

open access: yesNature Communications, 2023
Collective particle transport across periodic energy landscapes is ubiquitously present in many condensed matter systems spanning from vortices in high-temperature superconductors, frictional atomic sliding, driven skyrmions to biological and active ...
Eric Cereceda-López   +4 more
doaj   +1 more source

Synthesis and biological activity of squaramido-tethered bisbenzimidazoles as synthetic anion transporters

open access: yesRSC Advances, 2021
A series of squaramido-tethered bisbenzimidazoles were synthesized and found to exhibit moderate anion transport and cytotoxicity.
Zhong-Kun Wang   +4 more
openaire   +3 more sources

The Contribution of Hydrophobic Interactions to Conformational Changes of Inward/Outward Transmembrane Transport Proteins

open access: yesMembranes, 2022
Proteins transporting ions or other molecules across the membrane, whose proper concentration is required to maintain homeostasis, perform very sophisticated biological functions.
Irena Roterman   +2 more
doaj   +1 more source

206 An artificial active DNA transporter from biological building blocks [PDF]

open access: yesJournal of Biomolecular Structure and Dynamics, 2013
The selective transport of molecules across membrane pores is an essential biological process that occurs in all living organisms. Examples include the chaperone of proteins and mRNA in and out the cell nucleus mediated by the nuclear pore complex and the transport of specific molecules across a biological membrane mediated by active and passive ...
Lorenzo Franceschini   +2 more
openaire   +1 more source

Long-time diffusion and energy transfer in polydisperse mixtures of particles with different temperatures

open access: yesPhysical Review Research, 2021
Evidence suggests that the transport rate of a passive particle at long time scales is enhanced due to interactions with the surrounding active ones in a size- and composition-dependent manner.
Efe Ilker   +2 more
doaj   +1 more source

From Lab to Launchpad: A Modular Transport Incubator for Controlled Thermal and Power Conditions of Spaceflight Payloads

open access: yesInstruments
Maintaining physiologically controlled conditions during the transport of biological experiments remains a long-standing but under-addressed challenge in spaceflight operations. Pre-launch thermal or mechanical stress induce artefacts that compromise the
Sebastian Feles   +2 more
doaj   +1 more source

Evolutionary ancestry and novel functions of the mammalian glucose transporter (GLUT) family

open access: yesBMC Evolutionary Biology, 2010
Background In general, sugar porters function by proton-coupled symport or facilitative transport modes. Symporters, coupled to electrochemical energy, transport nutrients against a substrate gradient.
Patron Nicola   +2 more
doaj   +1 more source

Learning to control active matter

open access: yesPhysical Review Research, 2021
The study of active matter has revealed novel non-equilibrium collective behaviors, illustrating their potential as a new materials platform. However, most work treat active matter as unregulated systems with uniform microscopic energy input, which we ...
Martin J. Falk   +3 more
doaj   +1 more source

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