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Carboxylated Pillar[5]arene Meets Medicinal Biguanides: Host−Guest Complexes with Alexidine and Phenformin in the Crystal and Solution/Gas Phase
(American Chemical Society, 2023-10-12)Here we discuss crystal and solution/gas phase complexes of carboxylated pillar[5]arene with two cationic guests, alexi-dine and phenformin, revealing host-guest and assembly curiosities, the role of hydrogen bonding and ... -
Carboxylated Pillar[6]arene Emulates Pillar[5]arene in the Host–Guest Crystal Complexes and Shows Conformational Flexibility in the Solution/Gas Phase
(American Chemical Society, 2022-12-08)Despite the thriving interest in the aqueous complexation properties of carboxylated pillar[6]arene, its solid state supramolecular chemistry has remained a mystery. Here, overcoming challenging crystallogenesis, we report ... -
CAT on MOUSE: Control and automation of temperature for single-sided NMR instruments such as NMR-MOUSE
(John Wiley & Sons, 2023)Temperature-dependent experiments are a rapidly growing area of interest for low-field NMR. In this work, we present a new device for wide-range temperature control for single-sided NMR instruments. The presented device, ... -
Catalytic Ketonization over Oxide Catalysts (Part XIV): The Ketonization and Cross-Ketonization of Anhydrides, Substituted Acids and Esters
(MDPI, 2024-01-24)A series of 20 wt.% MO2 /S catalysts (where M = Ce, Mn or Zr and S = SiO2 or Al2 O3 ) were prepared using various precursors of the active phases. The resulting catalysts were characterized using different methods (XRD, ... -
Characterization of charge transfer excited states in [2Fe–2S] iron–sulfur clusters using conventional configuration interaction techniques
(Springer, 2020-06-22)The experimental UV–Vis spectra of the biologically relevant [2Fe–2S] iron–sulfur clusters feature typically three bands in the 300–800 nm range. Based on ground-state orbitals and using the one electron transition picture, ... -
Charging dynamics of electrical double layers inside a cylindrical pore: predicting the effects of arbitrary pore size
(Royal Society of Chemistry, 2021-12-06)Porous electrodes are found in energy storage devices such as supercapacitors and pseudocapacitors. However, the effect of electrode-pore-size distribution on their energy storage properties remains unclear. Here, we develop ... -
Chemical and structural properties of reduced graphene oxide – dependence on the reducing agent
(Springer, 2020-11-09)Graphene oxide (GO) prepared from graphite powder using a modified Hummers method and reduced graphene oxide (rGO) obtained from GO using different reductants, i.e. sodium borohydride, hydrazine, formaldehyde, sodium ... -
Chemical Memory with Discrete Turing Patterns Appearing in the Glycolytic Reaction
(MDPI, 2023-04-13)Memory is an essential element in information processing devices. We investigated a network formed by just three interacting nodes representing continuously stirred tank reactors (CSTRs) in which the glycolytic reaction ... -
Chitosan-Based N‑Doped Carbon Materials for Electrocatalytic and Photocatalytic Applications
(American Chemical Society, 2020)Chitosan-derived N-doped carbon materials are attractive candidates for the preparation of catalysts with a wide range of applications. Chitosan is a nitrogen rich (∼7 wt %) renewable biomass resource derived from seafood ... -
Chromophore hydrolysis and release from photoactivated rhodopsin in native membranes
(National Academy of Sciences USA, 2022-11-02)For sustained vision, photoactivated rhodopsin (Rho*) must undergo hydrolysis and release of all-trans-retinal, producing substrate for the visual cycle and apo-opsin available for regeneration with 11-cis-retinal. The ... -
CO2 Hydrogenation to Methane over Ni-Catalysts: The Effect of Support and Vanadia Promoting
(MDPI, 2021-03-28)Within the Waste2Fuel project, innovative, high-performance, and cost-effective fuel production methods are developed to target the “closed carbon cycle”. The catalysts supported on different metal oxides were characterized ... -
Colloidal synthesis of metal chalcogenide nanomaterials from metal–organic precursors and capping ligand effect on electrocatalytic performance: progress, challenges and future perspective
(Royal Society of Chemistry, 2021-08-02)Renewable and sustainable functional nanomaterials, which can be employed in alternative green energy sources, are highly desirable. Transition metal chalcogenides are potential catalysts for processes resulting in energy ... -
Combined Influence of Low-Grade Metakaolins and Natural Zeolite on Compressive Strength and Heavy Metal Adsorption of Geopolymers
(MDPI, 2021-05-01)Metakaolins (MKs) prepared from low-grade kaolins located in the Alvarães (A) and Barqueiros (B) regions of Portugal were used as the aluminosilicate source to compare their effect on the compressive strength and heavy ... -
Combining rotary wet-spinning biofabrication and electro-mechanical stimulation for the in vitro production of functional myo-substitutes
(IOP, 2023-08-09)In this work, we present an innovative, high-throughput rotary wet-spinning biofabrication method for manufacturing cellularized constructs composed of highly-aligned hydrogel fibers. The platform is supported by an ... -
Computing With Networks of Chemical Oscillators and its Application for Schizophrenia Diagnosis
(Frontiers Media S.A., 2022)Chemical reactions are responsible for information processing in living organisms, yet biomimetic computers are still at the early stage of development. The bottom-up design strategy commonly used to construct semiconductor ... -
Congo red protects bacteriophages against UV irradiation and allows for the simultaneous use of phages and UV for membrane sterilization
(Royal Society of Chemistry, 2023-01-16)The membrane bioreactor market has been expected to grow by 4.9 billion USD within five years – from 2021 to 2026. Biofouling caused by the deposition of microorganisms and their extracellular substances decreases the ... -
Continuous non-equilibrium transition driven by the heat flow
(American Physical Society, 2021-08-02)We discovered an out-of-equilibrium transition in the ideal gas between two walls, divided by an inner, adiabatic, movable wall. The system is driven out-of-equilibrium by supplying energy directly into the volume of the ... -
Confinement of Colloids with Competing Interactions in Ordered Porous Materials
(American Chemical Society, 2020)In this work, we explore the possibility of promoting the formation of ordered microphases by confinement of colloids with competing interactions in ordered porous materials. For that aim, we consider three families of ... -
Correlation between adhesion strength and phase behaviour in solid-supported lipid membranes
(Elsevier, 2020)Fundamental understanding of vesicle adhesion in the size range ≤ 200 nm is of major importance when addressing biologically relevant processes involving the presence of small vesicles like exosomes or endosomes. Using ... -
Cytotoxicity and oxidative stress induced by atmospheric mono-nitrophenols in human lung cells
(Environmental Pollution, 2021-05-15)Nitrophenols (NPs) are hazardous pollutants found in various environmental matrices, including ambient fine particulate matter (PM2.5), agricultural residues, rainwater, wildfires, and industrial wastes. This study showed ...