Results 131 to 140 of about 31,317 (271)

1,2‐Diazetidines − Structure, Synthesis, and Functionalization

European Journal of Organic Chemistry, EarlyView.
1,2‐Diazetidines are saturated four‐membered heterocycles featuring two adjacent nitrogen atoms. Despite recent advances in their synthesis and promising potential in medicinal chemistry, the chemistry of these cyclic hydrazines remains underexplored.
Stefan Roesner
wiley   +1 more source

Poly(2‐Oxazoline)‐Based Polyphotoacids: Synthesis, Solution Behavior, and Cellular Uptake of Multi‐Responsive Intracellular Transporters

Macromolecular Rapid Communications, EarlyView.
The ability of photoacids to increase their acidity in response to light irradiation (excited state proton transfer, ESPT) makes them attractive building blocks for the design of stimuli‐responsive copolymers. In this contribution, we present highly biocompatible polyphotoacids based on poly(2‐oxazoline)s bearing 1‐hydroxypyrene units. Low cytotoxicity,
Leonid I. Kaberov, Amod Godbole, Laura Klement, Sreevalsan Achikkulathu, Avinash Chettri, Benjamin Dietzek‐Ivanšić, Carsten Hoffmann, Felix H. Schacher   +7 more
wiley   +1 more source

Aliphatic Poly(Carbonate)s with Acid Responsive Release Mechanisms for Micellar Anti‐Tumor Drug Delivery

Macromolecular Rapid Communications, EarlyView.
Micellar systems based on biodegradable aliphatic polycarbonates and acid‐responsive triggers enhance drug solubility, stability, and tumor‐selective release. This review covers micelles with acid‐cleavable drug linkages and those that disassemble via acid‐sensitive functionalities.
Adrian V. Hauck, Lutz Nuhn
wiley   +1 more source

From 0D to 3D liquid crystal elastomers architectures: Fabrications and applications

Responsive Materials, EarlyView.
This review presents a dimension‐oriented overview of liquid crystal elastomers (LCEs), highlighting their molecular alignment, fabrication strategies, and programmable deformations from 0D particles to 3D architectures. Emphasis is placed on how dimensionality guides design principles, enables diverse actuation modes, and bridges fundamental ...
Mingxuan Liu, Zongxuan Wu, Jinquan Zheng, Yidan Zhu, Yanjun Liu, Lingling Ma, Wei Hu, Yan‐Qing Lu, Dan Luo   +8 more
wiley   +1 more source

Unlocking the potential of stimuli‐responsive liquid crystal polymer bio‐interfaces for adaptive cell modulation

Responsive Materials, EarlyView.
This Perspective discusses the potential of stimuli‐responsive liquid crystal polymer bio‐interfaces in modulating cell behavior as next generation dynamic artificial scaffolds. Unlike current artificial biomaterials that have static properties, LCPs offer fast, reversible, and spatially programmable deformation that reflects the dynamic properties of ...
Ruth M. C. Verbroekken, Burcu Gumuscu, Albert P. H. J. Schenning   +2 more
wiley   +1 more source

Azobenzene as an Effective Ligand in Europium Chemistry—A Synthetic and Theoretical Study

Molecules
The preparation and characterization of two novel europium–azobenzene complexes that demonstrate the effectiveness of this ligand for stabilizing reactive, redox-active metals are reported.
Damian G. Allis, Ana Torvisco, Cody C. Webb, Miriam M. Gillett-Kunnath, Karin Ruhlandt-Senge   +4 more
doaj   +1 more source

Ionogel Actuators: A Review

SmartBot, EarlyView.
Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao, Dongqing He, Yuanxiang Zhao, Dongdong Jin, Jiaheng Zhang, Wei Wang   +5 more
wiley   +1 more source

Shaping Function: Polymeric 3D Systems With Unconventional Geometries for Biomedical Applications

Small, EarlyView.
Particle shape is a key design parameter governing biological interactions. Advances in fabrication enable precise control over anisotropy and compartmentalization, allowing modulation of cellular uptake, transport, and biodistribution, ultimately enhancing therapeutic performance. ABSTRACT Polymer geometry is a primary determinant of physical behavior
Francisca G. Perfeito, Mariana B. Oliveira, João F. Mano   +2 more
wiley   +1 more source

Dynamic Switchable and Transient DNA Condensates Driven by Aptamer‐Ligand or Ion‐Nucleobase Bridged Complexes

Small, EarlyView.
Switchable or transient formation and dissociation of the phase‐separated DNA microdroplets generated by metal ions or aptamer‐ligand complexes crosslinking Y‐shaped DNA frameworks and dynamically separated by counter ligands eliminating the bridging metal ions or biocatalysts degrading the aptamer‐ligand complexes, are introduced.
Yichen Han, Yang Sung Sohn, Rachel Nechushtai, Fan Xia, Fujian Huang, Yunlong Qin, Itamar Willner   +6 more
wiley   +1 more source

Structural Mechanism of an Efficacy Photoswitch Targeting the β₂-adrenergic Receptor. [PDF]

Angew Chem Int Ed Engl
Time‐resolved structures from x‐ray free‐electron laser measurements combined with cellular assays demonstrate how the photoswitchable β‐blocker photoazolol‐1 acts as an efficacy switch of β2‐adrenergic receptor function. Light‐induced ligand repositioning shifts activity from inverse agonism toward neutral antagonism by altering local helical ...
Stipp R, Bertrand Q, Trabuco M, Duran-Corbera A, Ignazzitto MT, Glover H, Stierli F, Catena J, Carrillo M, Hartmann S, Seidel HP, Mulder M, Mason T, Kondo Y, Wranik M, Appleby M, Sager C, Sierra R, Gate G, Schleissner P, Cheng X, Weinert T, Cheng R, Mous S, Beale JH, Kepa M, Llebaria A, Hennig M, Rovira X, Standfuss J.   +29 more
europepmc   +2 more sources