Coulomb excitation of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ca</mml:mi><mml:mprescripts /><mml:none /><mml:mn>44</mml:mn></mml:mmultiscripts></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ar</mml:mi><mml:mprescripts /><mml:none /><mml:mn>46</mml:mn></mml:mmultiscripts></mml:math>

Călinescu, S.; Cáceres, L.; Grévy, S.; Sorlin, O.; Dombrádi, Zs.; Stănoiu, M.; Astabatyan, R. A.; Borcea, C.; Borcea, R.; Bowry, M.; Catford, W. N.; Clément, E.; Franchoo, S.; Garcı́a, Rocı́o; Gillibert, R.; Guerin, I. H.; Kuti, I.; Lepailleur, A.; Маслов, В. А.; Morfouace, P.; Mrázek, J.; Negoiţă, F.; Nııkura, M.; Perrot, L.; Podolyák, Zs.; Petrone, C.; Penionzhkevich, Y. E.; Roger, T.; Rotaru, F.; Sohler, D.; Stefan, I.; Thomas, J. C.; Vajta, Zsolt; Wilson, E.

doi:10.1103/physrevc.93.044333

Cited by 24 publications

(10 citation statements)

References 51 publications

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“…zeta potential Gold nanoparticles (GNPs) are considered by major pharmaceutical companies as a drug delivery agent of the future for the treatment of cancer and other diseases [1][2][3][4][5][6][7][8]. Even the cosmetic industry develop today new products based on noble metal nanoparticles like gold, silver or platinum [9][10][11][12]. However, at present are not known in detail the interaction mechanisms between nanoparticles and living cells.…”

mentioning

confidence: 99%

Optimization of Gold Nanoparticles Synthesis using Design of Experiments Technique

Turcu-Știolică¹,

Popescu²,

Bubulica³

et al. 2017

Rev. Chim.

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Gold nanoparticles are considered the newest drug carriers for different diseases. Therefore it is appropriate continuous optimization of their preparation. In this study, gold colloids with an average size of 1 -26 nm were obtained by the reduction of tetrachloroauric acid with trisodium citrate. The nanomaterials were characterized by UV-Vis spectroscopy and dynamic light scattering technique. In addition, zeta potential was measured for samples synthesized in order to determine the stability of the colloids. A Two-level Full Factorial design was chosen to determine the optimum set of process parameters (chloroauric acid concentration and sodium citrate concentration) and their effect on various gold nanoparticles characteristics (size and zeta potential). These effects were quantified using Design of Experiments (DoE) with 5 runs and 1 centerpoint. The selected objective and process model in this investigation are screening and interaction. Findings from this research show that to obtain particles larger than 35 nm, it is recommended to increase sodium citrate concentration, at low chloroauric acid values. These conditions will help to achieve smaller zeta potential, too.

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mentioning

confidence: 99%

Optimization of Gold Nanoparticles Synthesis using Design of Experiments Technique

Turcu-Știolică¹,

Popescu²,

Bubulica³

et al. 2017

Rev. Chim.

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“…On the contrary, the N = 28 closure in 46 Ar was predicted from mass measurements, 2 + energies and from B(E2) values, see e.g. [19,20]. Interestingly, the present interaction reproduces well the first two but not the E2 transition strength.…”

Section: Shell Effects In the Nuclear Quasi-continuummentioning

confidence: 53%

“…It was shown in Ref. [20] that none of the available shell-model interactions in the sd − pf model space is able to reproduce the experimental value of B(E2; 2 + → 0 + ) in 46 Ar. One can thus expect that a similar problem concerns the magnetic transition strengths and that the de-excitation strength function may be influenced by the N = 28 shell closure also in the argon chain.…”

Section: Shell Effects In the Nuclear Quasi-continuummentioning

confidence: 99%

Recent shell-model calculations of gamma-decay strength functions

Sieja¹,

Goriely²

2019

Preprint

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We present recent shell-model calculations of the γ-decay in sd−pf and pf -shell nuclei. We focus on the M 1 part of the dipole strength which was shown to exhibit interesting low-energy effects, in particular a low-energy enhancement which can have a considerable impact on the radiative neutron capture. We discuss the persistence of the shell effects in the nuclear quasicontinuum and the relation between the shape of the strength function at low energy and nuclear deformation.

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“…The nucleus 46 Ar has challenged existing shell model calculations which overpredict the B(E2) excitation strength to the first 2 + state [5,22,23,24], while describing well other observables, most recently related to masses of the Ar isotopes around N = 28, for example [25]. This is not without experimental controversy, where an excited-state lifetime measurement yields higher collectivity in agreement with shell model calculations [26], but disagrees with several Coulomb excitation measurements that consistently yield a lower B(E2) value [5,22,24].…”

Section: Learning From N = 29 -A Complementary Approachmentioning

confidence: 99%

News on the Nuclear Structure of Neutron-rich Nuclei at and beyond N = 28

Gade

2018

Proceedings of the Ito International Research Center Symposium "Perspectives of the Physics of Nuclear Structure"

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The nuclear potential and resulting shell structure are well established for the valley of stability, however, dramatic modifications to the familiar ordering of single-particle orbitals in rare isotopes with a large imbalance of proton and neutron numbers have been found: new shell gaps emerge and conventional magic numbers are no longer valid. This article outlines some of the recent in-beam γ-ray spectroscopy measurements at NSCL aimed at shedding light on the evolution of nuclear structure around neutron number N = 28 in neutron-rich Ar and S isotopes.

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Coulomb excitation ofCa44andAr46

Cited by 24 publications

References 51 publications

Optimization of Gold Nanoparticles Synthesis using Design of Experiments Technique

Optimization of Gold Nanoparticles Synthesis using Design of Experiments Technique

Recent shell-model calculations of gamma-decay strength functions

News on the Nuclear Structure of Neutron-rich Nuclei at and beyond N = 28

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