Results 41 to 50 of about 43,349 (285)

From sequence-defined macromolecules to macromolecular pin codes [PDF]

open access: yes, 2020
Dynamic sequence-defined oligomers carrying a chemically written pin code are obtained through a strategy combining multicomponent reactions with the thermoreversible addition of 1,2,4-triazoline-3,5-diones (TADs) to indole substrates.
Badi, Nezha   +4 more
core   +1 more source

Molecular Structures and Intermolecular Hydrogen Bonding of Silylated 2-Aminopyrimidines

open access: yesCrystals, 2023
A series of silylated 2-aminopyrimidines Me(4−n)Si(NHpyr)n (Me = methyl, NHpyr = pyrimid-2-ylamino, n = 1, 2, 3, 4), i.e., compounds 1, 2, 3, and 4, respectively, was prepared from a series of the respective chlorosilanes Me(4−n)SiCln and 2 ...
Marcus Herbig, Edwin Kroke, Jörg Wagler
doaj   +1 more source

Material Strength in Polymer Shape Deposition Manufacturing [PDF]

open access: yes, 1998
Shape Deposition Manufacturing (SDM) is a layered manufacturing process involving an iterative combination of material addition and material removal. Polymer SDM processes have used castable thermoset resins to build a variety of parts. The strength of
Kietzman, J. W., Prinz, F. B.
core   +2 more sources

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

open access: yesMolecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon   +13 more
wiley   +1 more source

A combined numerical and theoretical study on the strengthening and toughening mechanisms of double network hydrogels

open access: yesInternational Journal of Smart and Nano Materials
Double network (DN) hydrogels, comprising two interpenetrating networks, exhibit superior mechanical strength and toughness compared to single-network hydrogels.
Bo Gong, Ji Lin, Yu Xie, Jin Qian
doaj   +1 more source

Structure elucidation of polyheptazine imide by electron diffraction — a templated 2D carbon nitride networkw [PDF]

open access: yes, 2009
Structure elucidation of a condensed carbon IV) nitride with a stoichiometry close to C3N4 by electron diffraction reveals a two-dimensional planar heptazine-based network containing isolated melamine molecules in the trigonal ...
Döblinger, Markus   +5 more
core   +1 more source

Therapeutic strategies for MMAE‐resistant bladder cancer through DPP4 inhibition

open access: yesMolecular Oncology, EarlyView.
We established monomethyl auristatin E (MMAE)‐resistant bladder cancer (BC) cell lines by exposure to progressively increasing concentrations of MMAE in vitro. RNA sequencing showed DPP4 expression was increased in MMAE‐resistant BC cells. Both si‐DPP4 and the DPP4 inhibitor sitagliptin suppressed the viability of MMAE‐resistant BC cells.
Gang Li   +10 more
wiley   +1 more source

Visible light photoredox-catalyzed deoxygenation of alcohols

open access: yesBeilstein Journal of Organic Chemistry, 2014
Carbon–oxygen single bonds are ubiquitous in natural products whereas efficient methods for their reductive defunctionalization are rare. In this work an environmentally benign protocol for the activation of carbon–oxygen single bonds of alcohols towards
Daniel Rackl   +3 more
doaj   +1 more source

Oxidative aromatization of olefins with dioxygen catalyzed by palladium trifluoroacetate [PDF]

open access: yes, 2008
Molecular oxygen can replace sacrificial olefins as the hydrogen acceptor in the palladium trifluoroacetate catalyzed dehydrogenation of cyclohexene and related cyclic olefins into aromatics.
Bercaw, John E.   +2 more
core  

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

open access: yesMolecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala   +15 more
wiley   +1 more source

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