Browsing by Author "Kumar, A."

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A Novel Biosensor for Gabapentin Drug Detection Based on the Pd-Decorated Aluminum Nitride Nanotube
(Springer, 2021) Yaşar, S.; Hosseinian, A.; Ebadi, A.; Ahmadi, S.; Ebrahimiasl, S.; Kumar, A.
Density functional theory calculations were performed to inspect the potential application of pristine AlN nanotube (AlNNT) as well as Pd-decorated AlNNT (Pd@AlNNT) in recognition of gabapentin (GB) drug. The sensing response of AlNNT to the GB drug is very small (~ 5.2 at 298 K) attributed to the small adsorption energy (AE) of −0.16 eV. Molecular orbital energy decomposition method (EDA) showed that the contributions of electrostatic attraction, Pauli repulsion, orbital relations, and dispersion forces in the AE are about −0.21, 0.19, −0.11, and −0.09 eV, respectively. A Pd atom preferentially adsorbed over an Al–N bond of the AlNNT, releasing the energy of 2.93 eV. We found that the GB strongly adsorbed on the Pd@AlNNT with AE of −1.29 eV and the sensing response increased to 524.6 by the Pd decoration. Based on the results, the main stabilization contribution to the AE of GB on the Pd@AlNNT comes from the electrostatic attraction based on the EDA analysis. The recovery time was achieved to be 1.8 s for the GB desorption from the Pd@AlNNT surface. Finally, we concluded that the Pd@AlNNT can transform the presence of GB molecules into electrical signal, and it may potentially be applied as an electronic sensor for GB drug detection. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
Retraction Note: a Novel Biosensor for Gabapentin Drug Detection Based on the Pd-Decorated Aluminum Nitride Nanotube (Structural Chemistry, (2021), 32, 5, (1961-1971), 10.1007/S11224-021-01771-5)
(Springer, 2023) Yaşar, S.; Hosseinian, A.; Ebadi, A.; Ahmadi, S.; Ebrahimiasl, S.; Kumar, A.
The Editor-in-Chief and Publisher have retracted this article because they have been unable to validate the content of this article. An investigation by the Publisher found evidence suggestive of attempts to inappropriately obtain or allocate authorship. The article also appears to contain inappropriate or irrelevant references. Akram Hosseinian does not agree to this retraction. Semih Yaşar, Abdolghaffar Ebadi, Sheida Ahmadi and Saeideh Ebrahimiasl have not responded to any correspondence from the editor or publisher about this retraction. Ajit Kumar has not explicitly stated whether they agree to this retraction notice. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
Sustainable Horticulture: Microbial Inoculants and Stress Interaction
(Elsevier, 2022) Seymen, M.; Kurtar, E.S.; Erdinc, C.; Kumar, A.
Sustainable Horticulture: Microbial Inoculants and Stress Interaction gives insights into the applications and formulations of microbial inoculants. In recent years, the optimum yields of horticultural plants largely influenced by rising global temperature, biotic stress (attack of pathogens) and abiotic stresses has created extra pressure for the horticulturalist to meet the need of optimum yield production for the burgeoning global population. However, the challenges of biotic and abiotic stress factors mitigated by traditional physical or chemicals methods include high application cost and adverse impact on quality limit the frequent use, hence the solutions in this book create new avenues for progress. This book covers those challenges and how microbial based bio inoculants are broadly used in horticulture to mitigate the challenges of biotic and abiotic stresses. It provides an important contribution on how to apply efficient beneficial microbes (microbial inoculants) for a sustainable society. © 2022 Elsevier Inc. All rights reserved.