Chemiresistive graphene sensors for ammonia detection

C Mackin, V Schroeder, A Zurutuza, C Su… - … applied materials & …, 2018 - ACS Publications
The primary objective of this work is to demonstrate a novel sensor system as a convenient
vehicle for scaled-up repeatability and the kinetic analysis of a pixelated testbed. This work …

Cooperativity in Diiron (III) porphyrin Dication Diradical-Catalyzed Oxa-Diels–Alder Reactions: Spectroscopic and Mechanistic Insights

S Sarkar, P Sarkar, D Samanta, SK Pati, SP Rath - ACS Catalysis, 2022 - ACS Publications
Here, we delineate a maiden example of a diiron (III) dication diradical porphyrin dimer as a
competent catalyst for the oxa-Diels–Alder type reaction of aldehydes with 1, 3-dienes …

Unusual Stabilization of an Intermediate Spin State of Iron upon the Axial Phenoxide Coordination of a Diiron (III)–Bisporphyrin: Effect of Heme–Heme Interactions

S Bhowmik, S Dey, D Sahoo… - Chemistry–A European …, 2013 - Wiley Online Library
The binding of a series of substituted phenols as axial ligands onto a diiron (III)
bisporphyrin framework have been investigated. Spectroscopic characterization revealed …

Axial Thiophenolate Coordination on Diiron (III) bisporphyrin: Influence of Heme–Heme Interactions on Structure, Function and Electrochemical Properties of the …

D Sil, FST Khan, SP Rath - Inorganic Chemistry, 2014 - ACS Publications
The binding of a series of substituted thiophenols as axial ligands on a highly flexible ethane-
bridged diiron (III) bisporphyrin framework has been investigated as a model of diheme …

Axial phenoxide coordination on di-iron (III) bisporphyrin: Insights from experimental and DFT studies

S Bhowmik, D Sil, R Patra, SP Rath - Journal of Chemical Sciences, 2011 - Springer
Synthesis, structure and properties of new five-coordinate phenolate complexes of di-iron
(III) bisporphyrin are reported here, in which phenol binds in η 1-fashion as an axial ligand …

Modulation of iron spin in ethane-bridged diiron (III) porphyrin dimer: anion dependent spin state switching

FST Khan, AK Pandey, SP Rath - Journal of Chemical Sciences, 2018 - Springer
The multiheme cytochrome c involves extensive interaction among the heme centers to
enable them to perform a wide variety of enzymatic activities. In an attempt to exploit such …

Solution-Processed Functionalized Graphene Film Prepared by Vacuum Filtration for Flexible NO2 Sensors

M Dieng, S Sankar, P Ni, I Florea, P Alpuim, A Capasso… - Sensors, 2023 - mdpi.com
Large-scale production of graphene nanosheets (GNSs) has led to the availability of
solution-processable GNSs on the commercial scale. The controlled vacuum filtration …

Porphyrin molecules boost the sensitivity of epitaxial graphene for NH3 detection

I Iezhokin, D Den Boer, P Offermans… - Journal of Physics …, 2016 - iopscience.iop.org
The sensitivity of quasi-free standing epitaxial graphene for NH 3 detection is strongly
enhanced by chemical functionalization with cobalt porphyrins resulting in a detection limit …

Spin‐Flip via Subtle Electronic Perturbation in Axially Ligated Diiron(III) Porphyrin Dimer

P Chakraborty, N Ghosh, N Awasthi… - Chemistry–A European …, 2024 - Wiley Online Library
Spin state switching in the metal center is a crucial phenomenon in many enzymatic
reactions in biology. The spin state alteration, a critical step in cytochrome P450 catalysis, is …

Ferric complexes of 3-hydroxy-4-pyridinones characterized by density functional theory and Raman and UV–vis spectroscopies

J Sebestik, M Safarik, P Bouř - Inorganic Chemistry, 2012 - ACS Publications
Deferiprone and other 3-hydroxy-4-pyridinones are used in metal chelation therapy of iron
overload. To investigate the structure and stability of these compounds in the natural …