ABSTRACT
The aim of this work is to obtain further confirmation of the hypothesized presence, in the EDS, of molecular aggregates of water molecules. The measurements on the EDS evidenced some relevant differences compared to those on solutions with just water as solvent. We suppose that the preparation procedure of the EDS could produce permanent changes in the supramolecular structure of water. The conductivity and the pH variations caused by adding the titrant, namely NaOH or HCl in the titration procedure used, were markedly different to those of the control solutions. The experimental results were interpreted by considering the interactions that can take place between the OH– or H3O+ and the hypothesized molecular aggregates of water molecules, i.e. dissipative structures. In this work we have introduced a new methodology to study the EDS and to have more information about the presence of the dissipative structures, i.e. the gravimetric analysis. We evaporate a known quantity of the EDS at 90°C for 36–48 hours, and compare the obtained quantity of solid with the expected one given the chemical composition of the liquid, obtained via analytical measurements: atomic absorption and ICP mass. We systematically obtain that the experimental results are higher than the expected ones. The ratio of the obtained and expected results is about 3:2, putting in evidence that some water remains stable even after a very long treatment at 90°C.
Key words: conductometry, pHmetry, dissipative structures, gravimetric analysis, homeopathic dilutions.
1 INTRODUCTION
In recent articles [1, 2] we put forth a new interpretation of conductometric and pH metric titrations, performed on EDS, using HCl or NaOH as titrant. That new molecular interpretation better explains the calorimetric titrations done in the past, employing a flow-mix microcalorimetry technique [3, 4]. In both kinds of titrations (acids or bases as titrants) a strong interaction with the dissipative structures [5–7], i.e. the water molecules aggregates, is supposed, because of the measured exothermic effects. As soon as all the molecular aggregates have formed complexes with the added ions, the conductometric response shows a net increase of specific conductivity, due to added H3O+or OH– ions, that are free, while the calorimetric response is constant [8, 9]. As a matter of fact, in the pHmetric titrations using HCl as titrant, the pH variations are much lower in the EDS systems than in the control. Namely the pHs are always higher than in the control, until all the aggregates have formed complexes with the added H+, indicating a common mechanism across the conductometric, pHmetric and calorimetric titrations. The reverse happens when the titrant is NaOH solutions. Hence the whole phenomenology hints at the presence of dissipative structures with a ‘concentration’ that can be roughly determined using conductometric and pHmetric titrations with strong acids or bases. Those titrations put in evidence the ‘reactivity’ of the EDS with solutions of acids and/or bases at different concentrations. The EDS display a different physico-chemical behaviour compared to their solvent [1–3, 8–18]. They behave as complex systems, influenced by peculiar aspects of the preparation technique, as well as by the storage conditions [19–28]. The physico-chemical results led us to think to the existence of some aggregates of water molecules, giving rise to a phenomenology that depends on the age of the samples and their storage volume, in a way that is not explained by classical thermodynamics, but can rather be explained by the thermodynamics of far-from-equilibrium systems or of irreversible processes [1–4, 8–18, 29]. The agitation step might be responsible for the emergence of the novel behaviour that we witnessed, by triggering the formation of dissipative structures [5–7]. It must be underlined that, for example, the conductivity of an EDS is largely higher than the one expected given its chemical composition. In this work we introduce gravimetric analysis as a means to evidence the presence of aggregates of water molecules that are very stable to thermal treatments, up to 90°C. We simply evaporate the bulky water from EDS solutions and compare the weight of the obtained solid with the expected one
given the chemical composition of the liquid. The ratio of the obtained and expected one is about 3:2 putting in evidence that some water remains stable up to 90°C. Furthermore, by refilling the container from which the bulky water was evaporated, we are able to almost restore the previous physico-chemical behaviour, e.g. the conductivity of the EDS after the refilling process was still higher than one can predict from the chemical composition.
2 EXPERIMENTAL
2.1 Materials
The ‘extremely diluted solutions’ were prepared using, as solvent, a solution of sodium bicarbonate and/or silicic acid, at low and known concentrations (5 × 10-5 -10× 10-5 mol L-1).
2.2 Procedures
The EDS preparation follows the typical technique of homeopathic medicine proposed by Hahnemann [30] that essentially implies the iteration of two steps: dilution (centesimal or decimal) and ‘dynamization’. The process of ‘dynamization’ consists of violent agitations (succussions) of the solution, by means of a mechanical apparatus. The studied EDS were single dilutions or a mix of many solutions with different active principles and dilution degrees (CH), because we needed high quantities of EDS for the experimental procedures of titration. The conductometric titrations were performed measuring the specific electrical conductivity of a solution of EDS (1.5 – 10 mL) as a function of the volume of added HCl or NaOH, and thus of the concentration of the added titrant in the final solution. Likewise, in the pHmetric titrations we measured the pH of the solution when varying the quantity of the added titrants. The same titration procedure was employed for the control solutions, namely solutions of sodium bicarbonate at the same concentration of the EDS solutions. Samples of two different solutes were used: AA: Asernicum Album (As2O3); 2,4D: Dichlorophenoxicacethic acid; the samples labelled GP (glass powder) [2, 31] were obtained by putting in contact, for a period of several months, glass powder of the employed vials and twice distilled water. The aim was to simulate a solution containing the components of the glass (Na2O, SiO2, B2O3, Al2O3), thus a very similar composition to that of the EDS, to gain some insight into the behaviour of the control in the titration procedure with HCl or NaOH solutions, and on the weight to expect after the evaporation process of an ordinary chemical solution or one containing dissipative structures (EDS).
2.3 Analytical determination of impurities
The sodium concentration was determined through the spectroscopic method of atomic absorption,
using a Spectra A Varian instrument The Si, Al and B concentrations were determined through the ICP-mass method using an Agilent 7500 ICP-MS instrument
2.4 Evaporation process
EDS solutions that undergo the evaporation process are kept in vials of about 40 ml that are then placed in a stove at 90°C for 36–48 hours, until a solid deposit is obtained, caused by the presence of impurities in the glass (sodium carbonate, silicic acid, boric acid, aluminium trioxide). The vials undergo several cycles of heating in the stove at the temperature of 90°C, until every vial reaches a steady weight. The weight can be considered constant when the weight difference between a cycle and the following varies in the range of ±0.1 mg. This range is equal to the sensitivity of the used analytic balance (Gibertini E 42 S). The solid deposit after the evaporation of bulk water reaches a constant weight after about 12 hours of stasis at a temperature of 25 ± 0.5°C. The refilling process consists in adding twice-distilled water to the solid deposit on the bottom of the vial. The water is added in a quantity equal to the weight of the solution before the evaporation process. The measurements show that electrical conductivity slowly grows during the following 24–48 hours, and then it reaches a constant value that is very close to the one measured before the evaporation process (from zero to 20% less). We set forth a hypothesis on the chemical species of the deposit that result from the evaporation process. The hypothesis was tested on GP solutions (see the procedures section) that are considered control solutions since they do not contain dissipative structures. By hypothesizing that the chemical species in the solid deposit are Na2CO3, H4SiO4, H2BO3 and Al2O3 (see Table 2), we obtain an expected weight that matches the actual experimental weight.
3 RESULTS AND DISCUSSION
The measurements on the EDS evidenced some relevant differences compared to those in solutions
with just water as solvent containing solutes (impurities) deriving from the glass containers. The experimental results were interpreted by considering the interaction that takes place between the H3O+ and OH– ions and the hypothesized molecular aggregates of water molecules or aqueous
nanostructures [32], i.e. dissipative structures. A qualitative comparison was made about the nature
of the driving force that leads to the formation of complexes between the two ions H3O+ and OH-
and the dissipative structures. The qualitative conclusion is that for OH– the binding process has a driving force of enthalpic nature, while for H3O+ the opposite happens, the driving force being of entropic nature. The whole phenomenology hints at the presence of dissipative structures with a ‘concentration’ that can be roughly determined using conductometric and pHmetric titrations with strong acids or bases.. The very complex phenomenology described is, however, self-consistent with the existence of molecular aggregates of water molecules, what we call ‘dissipative structures’, with a strong chemical affinity with the H3O+ and OH- ions. Consequently they form very stable complexes (binding phenomena). From a calorimetric point of view, in this hypothesis we must naturally expect an exothermic phenomenon, as the one actually observed. All of the different physico-chemical procedures that were employed seem to lead to only one possible hypothesis, that related to the binding phenomena, and to the existence of a single cause in the results of those three very different methodologies: a transport phenomenon (conductometry) and two phenomena tied to thermodynamic equilibrium (pHmetry and calorimetry). The good self-consistency of this interpretation prompted us to try new methodologies that would help gather new information about the properties of the aggregates, such as the gravimetric analysis approach. We supposed that the strong interaction between H3O+ and OH- would also be possible between the OH functional groups of alcohols, carbohydrates, bases and the functional groups of the acids. It is interesting to note that EDS used in homeopathic medicines typically uses hydroalcoholic mixtures or solid supports made of sugar (the globules or granules). As we said before our EDS are water solutions with a very low quantity of impurities deriving from the glass containers (H4SiO4, H2BO3, Al2O3 and sodium bicarbonate NaHCO3). All these substances are able, in principle, to produce very strong interactions with the dissipative structures. The presence of these kinds of impurities probably leads to a favourable situation for the stability of the EDS in time or in the presence of thermal excursions. The hypothesis is that dissipative structures can bind with the impurities so as to gain a very strong stability, also in the absence of bulky water. We chose to operate at atmospheric pressure and with a temperature of 90°C, for the rapidity of evaporation under those conditions.
To indirectly prove that such a harsh treatment does not alter the physico-chemical properties of the EDS, we refilled the glass container after the evaporation and performed electrical conductivity measurements. The variations of conductivity after evaporation and the refilling procedure are very low (about 0 -20%) and statistically negative. This way we can correlate the concentration of dissipative structures in the initial EDS and in the refilled one. It is interesting to underline that after the refilling procedures it takes several days before the systems reach a stable conductivity value, probably because of the slow kinetics of the dissolution process of the obtained solid. Something inside the EDS is able to reproduce the physico-chemical properties after the refilling procedures! We supposed that the aggregates of water molecules can stabilize themselves via strong interaction with the impurities and that, also at high temperature, the water aggregates do not evaporate. We estimated the weight of water aggregates contained in 20 mL, the quantity of solution that we usually evaporate. To do that we use the concentration of the aggregates obtained via conductometric titration using HCl as titrant. In the simplified hypothesis of a one-to-one binding process, aggregates of about 10–20 water molecules should produce a weight in excess of about 1–2 mg, a very measurable quantity. We performed about 30 preliminary experiments of evaporation obtaining almost every time an experimental weight in excess. After those tests, further experiments were conducted in a very careful way. The Table reports; the initial conductivity, cI (mS cm –1) i.e. the conductivity of the sample and the control (glass powder, GP) before the evaporation procedure; the excess conductivity cE (mS cm –1) of the sample and control, GP , i.e. the difference between the initial conductivity and that due to the chemical content. the expected weight from chemical analysis, mgexp (mg); the experimentally determined weight, mgexper (mg) and the Dmg (mg). The weights after evaporating about 20 mL of EDS are in effect of the order of magnitude of milligrams. The nature of the EDS is always a mix of various active principles or dilution degrees (CH).
As shown in the Table the experimental weight is always higher than the expected one, two or three
times higher for the samples while, on the contrary, equal to the expected one for the control within the limits of the experimental error (± 0.1 mg). It is interesting to note that the higher the
conductivity excess, the higher is the difference between the experimentally determined weight and
the expected one. This stabilizing process of the dissipative structures that exploits the surrounding impurities, and their ability to reproduce the physico-chemical properties after the refilling procedure bears, mutatis mutandis, some similitude to the ability of some simple living systems, such as a bacterium or a protist, to stay in a quiescent state, in environmental condition not favourable to life. The microbial cyst is a resting or dormant stage of a micro organism that helps it to overcome unfavourable environmental conditions. It can be thought of as a state of suspended animation in which the metabolic processes of the cell are slowed down and the cell ceases all activities such as feeding or locomotion. The process of encystment helps the microbe to resist until more suitable conditions are reached. When the encysted microbe finds an environment favourable to its growth and survival, the cyst wall breaks down (excystation) [33]. For example, in the presence of sufficient water they assume their characteristic far-from-equilibrium state, that of dissipative structures. We can conclude that dissipative structures are water molecule aggregates and are formed in consequence of perturbations of different nature, even low energy ones. They have the capability to exist far from thermodynamic equilibrium for a long time, of the order of magnitude of several years or more [15, 29]. In the absence of bulky water, as for some of the most simple life forms, they reach a quiescent state in which they exploit a strong interaction with hydrophilic substances. This strong interaction helps them to remain in a state in which they do not dissipate energy until sufficient bulky water is at their disposal. Also in this case, as for the simplest life forms, they are able to return to active state, i.e. returning to be dissipative structures, far-from-equilibrium systems. A new intriguing similitude could be introduced with the mechanism used in homeopathic medicine to offer remedies to the patients via globules of lactose or of a mix of lactose and sucrose imbibed of liquid EDS. When the bulky water evaporates, the dissipative structures stay in a quiescent state until the patient assumes the globules. When the globules enter in contact with the biological liquids they transit to the far-from-equilibrium state of dissipative structures, capable of transmitting the eventually therapeutic information. Given the goal of this research, such consistency in the results of the four different kinds of methodologies is really encouraging!
ACKNOWLEDGMENTS
This study was financed by a grant from Laboratories Boiron. The authors wish to thank Dr. Natascia Napolitano for the cooperation.
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Table. Initial conductivity cI (mS cm –1), the excess conductivity cE (mS cm –1 ) of the sample; the
expected weight from chemical analysis, mgexpc (mg); the experimentally determined
weight, mgexper (mg) and the Dmg (mg), i.e. mgexper – mgexpc for EDS and GP samples.
EDS samples | ||||
mS cm –1 | mS cm –1 | mg | mg | mg |
cI | cE | mgexpec | mgexper | Dmg |
100 | 35 | 0.09 | 2.03 | 1.04 |
57 | 32 | 0.08 | 2.02 | 1.04 |
10 | 5 | 0.02 | 0.04 | 0.02 |
13 | 3 | 0.04 | 0.08 | 0.04 |
28 | 13 | 0.04 | 1.03 | 0.09 |
21 | 5 | 0.03 | 0.06 | 0.03 |
13 | 6 | 0.02 | 0.08 | 0.06 |
130 | 50 | 1.04 | 2.07 | 1.03 |
50 | 28 | 0.04 | 1.05 | 0.09 |
32 | 10 | 0.04 | 0.07 | 0.03 |
16 | 7 | 0.03 | 0.05 | 0.02 |
10 | 3 | 0.02 | 0.04 | 0.02 |
54 | 34 | 0.06 | 2.03 | 1.07 |
54 | 33 | 0.06 | 2.04 | 1.08 |
42 | 21 | 0.06 | 1.06 | 1.00 |
112 | 54 | 1.01 | 3.05 | 2.04 |
45 | 26 | 0.06 | 2.07 | 2.01 |
122 | 65 | 1.01 | 4.03 | 3.02 |
11 | 5 | 0.02 | 0.05 | 0.03 |
GP samples | ||||
68 | 0 | 3.01 | 3.01 | 0 |
9 | 0 | 0.02 | 0.03 | 0.01 |
18 | 0 | 1.00 | 1.02 | 0.02 |
Authors: Vittorio Elia (vittorio.elia@unina.it) & Elena Napoli (elena.napoli@unina.it), Department of Chemistry, University “Federico II” of Naples, Italy.
Paper presented at IV Spanish National Congres, Barcelona 10-12 June 2010.
Traducción al castellano en la Revista Médica de Homeopatía, Volumen 3. Especial Congreso. Junio 2010.
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