Janusz S. Szmyd

Prof. Dr. Janusz S. Szmyd

orcid

Research Focus & Metrics

Academic Career Length

45Years (1982-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 October 2014 in Journal of Nanoparticle Research
Verified
Journal Article
Open access
PDF file
ASAgnieszka Szpak
Agnieszka Szpak
SFSylwia Fiejdasz
Sylwia Fiejdasz
WPWitold Prendota
Witold Prendota
TSTomasz Strączek
Tomasz Strączek
CKCzesław Kapusta
Czesław Kapusta
Szczepan ZapotocznySzczepan Zapotoczny
Szczepan Zapotoczny
Dual-mode MRI contrast agents consisting of superparamagnetic iron oxide nanoparticle (SPION) cores and gadolinium ions associated with the ionic chitosan protecting layer were synthesized and studied. Gadolinium ions were introduced into the coating layer via direct complex formation on the nanoparticles surface, covalent attachment or electrostatically driven deposition of the preformed Gd complex. The modified SPIONs having hydrodynamic diameters ca. 100 nm form stable, well-defined dispersions in water and have excellent magnetic properties. Physiochemical properties of those new materials were characterized using e.g., FTIR spectroscopy, dynamic light scattering, X-ray fluorescence, TEM, and vibrating sample magnetometry. They behave as superparamagnetics and shorten both T1 and T2 proton relaxation times, thus influencing both r1 and r2 relaxivity values that reach 53.7 and 375.5 mM−1 s−1, respectively, at 15 MHz. The obtained materials can be considered as highly effective contrast agents for low-field MRI, particularly useful at permanent magnet-based scanners.

1 April 2009 in International Journal of Hydrogen Energy
Verified
Journal Article
Closed access
APAep Patah
Aep Patah
ATAkito Takasaki
Akito Takasaki
JSJanusz S. Szmyd
Janusz S. Szmyd

1 February 2010 in Energy
Verified
Journal Article
Closed access
YKY. Komatsu
Y. Komatsu
SKS. Kimijima
S. Kimijima
JSJanusz S. Szmyd
Janusz S. Szmyd

1 December 2010 in International Journal of Heat and Fluid Flow
Verified
Journal Article
Closed access
WWW. Wrobel
W. Wrobel
EFElzbieta Fornalik-Wajs
Elzbieta Fornalik-Wajs
JSJanusz S. Szmyd
Janusz S. Szmyd

1 February 2017 in International Journal of Hydrogen Energy
Verified
Journal Article
Closed access
JMJ. Molenda
J. Molenda
JKJ. Kupecki
J. Kupecki
RBR. Baron
R. Baron
MBM. Blesznowski
M. Blesznowski
GBGrzegorz Brus
Grzegorz Brus
AZA. Zurawska
A. Zurawska

1 August 2015 in Journal of Power Sources
Verified
Journal Article
Closed access
GBGrzegorz Brus
Grzegorz Brus
HIHiroshi Iwai
Hiroshi Iwai
ASAnna Sciazko
Anna Sciazko
MSMotohiro Saito
Motohiro Saito
HYHideo Yoshida
Hideo Yoshida
JSJanusz S. Szmyd
Janusz S. Szmyd