Compartmentalized reaction networks regulating signal processing, communication and pattern formation are central to living systems. Towards achieving life-like materials, we compartmentalized urea-urease more complex urea-urease/ester-esterase pH-feedback into hydrogel spheres investigate how fuel-driven pH fronts can be sent out from these regulated by internal networks. Membrane characteristics installed covering urease with responsive shells. We then encapsulate the two (urea-urease...

Programmable chemical circuits inspired by signaling networks in living cells are a promising approach for the development of adaptive and autonomous self-assembling molecular systems material functions. Progress has been made at level, but connecting control to larger elements such as colloids that enable real-space studies access functional materials is sparse can suffer from kinetic traps, flocculation, or difficult system integration protocols. Herein, we report toehold-mediated DNA...

Biological self-assemblies self- and cross-regulate each other via chemical reaction networks (CRNs) feedback. Although artificial transient have been realized activation/deactivation CRNs, the structures themselves do mostly not engage in CRN. We introduce a rational design approach for chemo-structural feedback, present colloidal co-assembly system, where formed co-assemblies accelerate their destruction autonomously. achieve this by immobilizing enzymes of deactivating acid-producing...

A tandem cleavage of carbon-carbon and carbon-nitrogen bonds in imidazo[1,2-a]pyridines imidazo[1,2-a]quinolines is reported the presence eosin Y visible light. The ring opening occurs under ambient conditions through singlet oxygen insertion, bond CO2 elimination, produces N-(pyridin-2-yl) amides N-(quinolin-2-yl) high yields. reaction shows good versatility, does not require strong external oxidants additives.

An ATP-fueled DNA based enzymatic reaction network regulates transient co-assemblies of micron-scale colloids. The system produces minimal waste, shows ATP-dependent behavior, and can be reactivated for up to three consecutive cycles.

Abstract Compartmentalized reaction networks regulating signal processing, communication and pattern formation are central to living systems. Towards achieving life‐like materials, we compartmentalized urea‐urease more complex urea‐urease/ester‐esterase pH‐feedback into hydrogel spheres investigate how fuel‐driven pH fronts can be sent out from these regulated by internal networks. Membrane characteristics installed covering urease with responsive shells. We then encapsulate the two...

Lead Poisoning is unfamiliar to most of the people although it still a potent industrial disease. A new explanation for fall Rome, based on evidences such as study old bones, Roman recipes and lined pots brewing poisons esteemed delicious by ancient aristocrats, given. It concluded that decline eventual Empire was net result many causes not alone, generally believed. also mistaken belief an occupational hazard. alkyls used in Gasoline are environmental subtly poisoning human populations...

Chromatographic behaviour of twentyfour amino acids has been studied on silicone fluid DC200, tiraryl phosphate (TAP) and tri-n-butylamine (TBA) impregnated silica gel-G layers in two-component mobile phases (n-propanol-water) varying ratios. The effect impregnation, phase composition the solubility hR F are discussed. mechanism migration is explained terms adsorption polarity used.

Abstract Biological self‐assemblies self‐ and cross‐regulate each other via chemical reaction networks (CRNs) feedback. Although artificial transient have been realized activation/deactivation CRNs, the structures themselves do mostly not engage in CRN. We introduce a rational design approach for chemo‐structural feedback, present colloidal co‐assembly system, where formed co‐assemblies accelerate their destruction autonomously. achieve this by immobilizing enzymes of deactivating...

Programmable chemical circuits inspired by the signaling networks in living cells are a promising approach for development of adaptive and autonomous self-assembling molecular systems material functions. Progress has been made at level, but connecting control to larger elements such as colloids that enable real-space studies access functional materials is sparse can suffer from kinetic traps, flocculation, or difficult system integration protocols. Here we report toehold-mediated DNA strand...

pH-responsive systems have gained importance for the development of smart materials and biomedical applications because they can switch between different states by simple acid/base triggers. However, such equilibrium lack autonomous behavior that is so ubiquitous in living self-regulate out equilibrium. As a contribution to emerging field chemical systems, we developed pH feedback (pH-FS) based on coupling acid- base-producing steps reaction networks. The resulting nonlinear curves be...