Thiacalixarene Covalently Functionalized Multiwalled Carbon Nanotubes as Chemically Modified Electrode Material for Detection of Ultratrace Pb2+ Ions

L Wang, X Wang, G Shi, C Peng, Y Ding - Analytical chemistry, 2012 - ACS Publications
This paper presents the preparation of novel thiacalixarene (TCA) covalently functionalized
multiwalled carbon nanotubes (MWCNTs) and an enhanced differential pulse anodic …

Azulene-ethylenediaminetetraacetic acid: A versatile molecule for colorimetric and electrochemical sensors for metal ions

GO Buica, IG Lazar, L Birzan, C Lete, M Prodana… - Electrochimica …, 2018 - Elsevier
A new synthesized molecular receptor, 2, 2'-(ethane-1, 2-diylbis ((2-(azulen-2-ylamino)-2-
oxoethyl) azanediyl)) diacetic acid (L) has been used as building block for the development …

Reactions drive conformations. Biomimetic properties and devices, theoretical description

TF Otero - Journal of Materials Chemistry B, 2013 - pubs.rsc.org
Life is supported by cellular reactions driving conformational, folding and unfolding
macromolecular movements with ionic and aqueous exchange. Here we review the state of …

Synthesis of azulenic compounds substituted in the 1-position with heterocycles

AC Razus, L Birzan - Monatshefte für Chemie-Chemical Monthly, 2019 - Springer
The review proposes an overview of the important general routes for the achievement of 1-
heteroarylazulenes using both azulene substitution by heterocycles and azulenic cyclic …

Ultrasensitive modified electrode based on poly (1H-pyrrole-1-hexanoic acid) for Pb (II) detection

GO Buica, IG Lazar, E Saint-Aman, V Tecuceanu… - Sensors and Actuators B …, 2017 - Elsevier
Metal ion complexing modified electrodes were obtained by oxidative electropolymerization
of 1H-pyrrole-1-hexanoic acid (monomer L) on glassy carbon disks with very good …

1-vinylazulenes with oxazolonic ring-potential ligands for metal ion detectors; synthesis and products properties

M Cristea, L Bîrzan, F Dumitrascu, C Enache… - Symmetry, 2021 - mdpi.com
As a continuation of research on 1-vinylazulenes synthesis, on their physico–chemical
properties as well as on their use as colorimetric and electrochemical materials for the …

1-vinylazulenes–potential host molecules in ligands for metal ion detectors

L Birzan, M Cristea, CC Draghici, V Tecuceanu… - Tetrahedron, 2016 - Elsevier
Several vinylazulenes containing metalophilic groups were prepared as potential host
molecules in ligands for metal ion detectors. The azulene-1-carbaldehyde derivatives were …

Colorimetric and voltammetric sensing of mercury ions using 2, 2′-(ethane-1, 2-diylbis ((2-(azulen-2-ylamino)-2-oxoethyl) azanediyl)) diacetic acid

GO Buica, AA Ivanov, IG Lazar, GL Tatu… - Journal of …, 2019 - Elsevier
Abstract 2, 2′-(Ethane-1, 2-diylbis ((2-(azulen-2-ylamino)-2-oxoethyl) azanediyl)) diacetic
acid (L) derivative was used to develop novel multi-signal sensor platforms for mercury ions …

Vinylazulenes chromophores: Synthesis and characterization

L Birzan, M Cristea, CC Draghici, V Tecuceanu… - Dyes and …, 2016 - Elsevier
Several vinylazulenes containing heterocyclic units were prepared using Knoevenagel
condensation. The condensation took place between electron rich 1-azulenecarbaldehyde …

Influence of the electrografting method on the performances of a flow electrochemical sensor using modified electrodes for trace analysis of copper (II)

B Feier, I Fizesan, C Mériadec, SA Girard… - Journal of …, 2015 - Elsevier
The performances of carboxylate-and cyclam-modified graphite felt electrodes prepared by
different electrografting methods for trace analysis of copper (II) were compared to determine …