The polyacrylamide–water system: Application of differential calorimetry to study the mechanisms of dissolution

Life Origination Hydrate Hypothesis (LOH-Hypothesis)

“…The combination of the below-considered size agreement between the hydrate and DNA structures and specific features of this phenomenon was the “hook” that initiated our thinking over this puzzle. Just the experimental results [ 35 , 36 , 37 ] on the water interaction with functional polymers led us to the idea of the formation of hydrate-like structures around functional groups of polymers in the water environment. The same phenomenon was used by us as the basis for the hypothetic explanation of physical and chemical mechanisms of some principal intracellular processes, including mitosis of eukaryotes and binary fission of prokaryotes [ 38 , 39 , 40 ].…”

Generalized hypothesis of the origin of the living-matter simplest elements, transformation of the Archean atmosphere, and the formation of methane – hydrate deposits

“…³ÒËÓËÐÞÏ [5] ±Ñ [70,71], ÂÍÓËÎÂÏËAEÑÏ (AA) [11,12] Ë ÂÏËÐÑÍËÔÎÑÕÂÏË (¡¬) (ÅÎËÙËÐÑÏ Ë ÂÎÂÐËÐÑÏ) [72]. (²ÂÐÇÇ Ä [73,74] £ ËÉÇ ÔÖÏÏËÓÑÄÂÐÞ ÓÇÊÖÎßÕÂÕÞ, ÒÑÎÖÚÇÐÐÞÇ AEÎâ ÓÇÂÍÙËÌ (10), (11), (12), (13) ËÏÇÇÏ ÊÐÂÚÇÐËâ: …”

Mitosis and DNA Replication and Life Origination Hydrate Hypotheses: Common Physical and Chemical Grounds

“…For example, in Josse et al (1961), there is no evidence of the absence of H 2 O desorption from sperm samples during their preparation and XRD measurements. Meanwhile, our experiments (Ostrovskii & Tsurkova, 1997, 1998a, 1998bOstrovskii et al, , 2001 with the PAA-H 2 O system led us to the following conclusions. The approach of the system to the equilibrium is very slow: within 30 days, a sample of dry polymer sorbs only one-third of the equilibrium H 2 O amount; the establishment of the complete equilibrium takes about a year.…”

“…To make certain that the functional groups of PAA and DNA are similar in their chemical properties, we studied the available data on the valence angles and lengths of the valence bonds in the AGs of these two substances and made sure of their identity . We also studied water-vapor sorption and desorption in the PAA-H 2 O system by adsorption and microcalorimetric methods (Ostrovskii & Tsurkova, 1997, 1998a, 1998bOstrovskii et al, , 2001; most of the experiments were performed in undisturbed highly-concentrated semi-liquid aqueous media at about 290 K. Each substrate-water system intended for desorption measurements was aged before the experiments up to the equilibrium for no less than a week with no agitation. For comparison, H 2 O sorption and desorption were also studied in the alaninewater and glycine-water systems .…”

“…In our experiments, the following specific features of H 2 O sorption by polymers with functional AGs were revealed. When H 2 O vapor contacts with PAA in air of almost 100% humidity at about 290 K, water sorption proceeds very slowly and terminates or, at least, moderates critically at a stoichiometry of AG·(17÷18)H 2 O; in desorption experiments, heightened molar differential heats of H 2 O sorption are obtained at this composition of the PAA-H 2 O system (Ostrovskii & Tsurkova, 1997, 1998a, 1998b.…”