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1

Deep Dehydration of Antarctic Lichen Leptogium puberulum Hue Observed by NMR and Sorption Isotherm

100%

Harańczyk H., Bacior M., Jastrzębska P., Olech M.

Acta Physica Polonica A

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2009

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vol. 115

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issue 2

516-520

EN

Hydration kinetics, sorption isotherm, and proton free induction decays are measured for Leptogium puberulum Hue thalli hydrated from gaseous phase. Very tightly, tightly and loosely bound water fraction are distinguished. The hydration dependence of mobile NMR signal component is non-linear and fitted well by rational function, which suggest the presence of water soluble solid (presumably carbohydrate) fraction in thallus structures of L. puberulum.

2

Initial Phases of Antarctic Ramalina terebrata Hook f. & Taylor Thalli Rehydration Observed by Proton Relaxometry

88%

Harańczyk H., Pater Ł., Nowak P., Bacior M., Olech M.

Acta Physica Polonica A

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2012

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vol. 121

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issue 2

480-484

EN

Hydration kinetics, sorption isotherm, and proton free induction decays are measured for Ramalina terebrata thalli rehydrated from gaseous phase. Very tightly, tightly, and loosely bound water fractions are distinguished. Sorption isotherm is sigmoidal in form with the mass of water saturating primary water binding sites equal to Δ m/m_0 = 0.046. Proton free induction decays show the presence of immobilized water fraction (T_{2 L_1}* ≈ 100 μs) and mobile water pool (T_{2 L_2}* ≈ 330 μs). Sorption isotherm fitted to the NMR data shows the absence of water fraction "sealed" in pores of dry thallus.

3

Rehydration of Digalactosyldiacylglycerol Model Membrane Lyophilizates Observed by NMR and Sorption Isotherm

88%

Harańczyk H., Bacior M., Jamróz J., Jemioła-Rzemińska M., Strzałka K.

Acta Physica Polonica A

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2009

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vol. 115

|

issue 2

521-525

EN

The initial stages of rehydration of digalactosyldiacylglycerol model membrane lyophilizates were observed using hydration kinetics, sorption isotherm, and high power proton relaxometry (at 30 MHz). Hydration time courses are single exponential and the sorption isotherm is sigmoidal in form. The mass of water saturating primary binding sites equals Δ M/m_0= 0.019±0.001. Proton free induction decays distinguish (i) immobilized protons of solid matrix of lyophilizate, signal S_0; (ii) protons of water fraction tightly bound to the lyophilizate surface, L_1; and (iii) mobile protons of loosely bound water pool, L_2. Hydration dependence of total water signal (L_1+L_2)/S_0 shows the presence of water fraction "sealed" in liposome structures, which equals Δ M_{S}/m_0 = 0.092±0.007.

4

The Influence of Alloying Additions on High Temperature Interaction Between Molten Compacted Graphite Iron and Alumina

72%

Sobczak N., Bacior M., Turalska P., Bruzda G., Homa M., Sobczak J. J., Sobczak N., Bacior M., Turalska P., Bruzda G., Homa M., Sobczak J. J.

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vol. 65

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issue 3

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3 Acta Physica Polonica A

1 Archives of Metallurgy and Materials

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4 Bacior M.

3 Harańczyk H.

2 Olech M.

1 Bruzda G.

1 Homa M.

1 Jamróz J.

1 Jastrzębska P.

1 Jemioła-Rzemińska M.

1 Nowak P.

1 Pater Ł.

1 Sobczak J. J.

1 Sobczak N.

1 Strzałka K.

1 Turalska P.

Deep Dehydration of Antarctic Lichen Leptogium puberulum Hue Observed by NMR and Sorption Isotherm

Initial Phases of Antarctic Ramalina terebrata Hook f. & Taylor Thalli Rehydration Observed by Proton Relaxometry

Rehydration of Digalactosyldiacylglycerol Model Membrane Lyophilizates Observed by NMR and Sorption Isotherm

The Influence of Alloying Additions on High Temperature Interaction Between Molten Compacted Graphite Iron and Alumina