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DOI: 10.1055/s-0042-1755335
Nanomaterial Characterisation of Diluted Platina and Alcohol Control Samples
- Abstract
- Introduction
- Materials and Methods
- Results
- HRTEM and EDS Analyses of Platina and Alcohol Control Samples
- Discussion
- Conclusion
- Highlights
- References
Abstract
Background The healing effects of homeopathic ultra-high potencies (UHPs) have always been a puzzle for material science, though recent research papers have now characterised the nanomaterial nature of several such UHPs. This study aimed to analyse the material content of clinically used potencies of the homeopathic medicine Platina (platinum) compared with alcohol control samples.
Methods Potencies of Platina were analysed under dynamic light scattering (DLS), high resolution transmission electron microscopy (HRTEM) with energy dispersive spectroscopy (EDS) and selected area electron diffraction (SAED) to identify the nanomaterial content. As control samples, both unsuccussed and potencies of alcohol were analysed by using DLS and HRTEM.
Results Platina 30c to CM: Nanoparticles were identified under DLS (mean particle size varying from 1.3 nm in 30c to 6.5 nm in CM) and HRTEM (particle size varying from 3.31 to 12.7 nm in 30c to 1.94 to 8.54 nm in CM). EDS confirmed the presence of platinum in all the samples of Platina. SAED analysis of Platina 30c, 200c, 1M and 10M confirmed also the presence of platinum dioxide (PtO2). For control samples, DLS and the HRTEM analyses of pharmaceutical grade unsuccussed alcohol and potentized Alcohol (6c, 12c and 30c) did not show any particles.
Conclusion Homeopathic potentization generated NPs of platinum in ultra-dilutions. NPs in potencies of Platina showed platinum in EDS and PtO2 in SAED. Importantly, control samples of alcohol did not show the presence of particles under DLS or HRTEM.
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Introduction
Homeopathic ultra-high potencies (UHPs) have been used by homeopathic physicians around the world for the last two centuries in the treatment of multiple different illnesses. Using modern technology, the outcome of recent research provides ample evidence of the fact that UHPs of homeopathy contain nanoparticles (NPs) of source material.[1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
In historical debates during the many decades of this discipline, plausibility arguments and experimental evidence[11] have supported new and incoming perspectives,[12] and these clearly favoured the nanoparticulate nature of homeopathic UHPs. This idea was furthered by some to view homeopathy as unique and personalised nanomedicine,[10] opening the possibility for further exploration into homeopathy and its therapeutics based on UHPs.
The sample medicines used for the current study and the control samples of alcohol potencies were prepared according to the guidance of the Homeopathic Pharmacopoeia of India (HPI).[13] The manufacturing process of homeopathic UHPs involves step-by-step dilution and potentization, not simple dilution alone. Recent developments show that the manufacturing process of homeopathic potencies is similar to the top-down approach being adopted in nanotechnology,[14] giving additional insight into the whole process of homeopathic medicine preparation and its nanopharmacology.
In the majority of the studies of homeopathic UHPs, the sample potencies being studied have been in the range of 200c.[1] [3] The present study has been designed for the analyses of various sample potencies of Platina (30c to CM) and comparison with sample potencies of alcohol as control.
Platina is a homeopathic constitutional medicine proved by Dr. Samuel Hahnemann and described in his book ‘Chronic Diseases’.[15] In clinical practice, Platina is prescribed for conditions such as depression, delusions and hysteria, and for uterine, ovarian and autoimmune disorders.[16]
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Materials and Methods
Samples
The samples of Platina were procured from Willmar Schwabe India (P) Ltd., New Delhi, a GMP-certified ISO 9001:2015 homeopathic pharmaceutical company.
The glassware used in the preparation of UHPs was pharmaceutical grade USP type III soda-lime-silica glass. In the preparation of potencies, separate glassware was used up to 200c. From 200c to CM potency, the same glassware was used in the mechanized potentizer, giving 10 succussions (vertical agitations) in every step. Pharmaceutical-grade alcohol, as per the HPI, was used as a vehicle for the preparation of all UHPs. The same pharmaceutical-grade alcohol was procured from Willmar Schwabe India (P) Ltd., New Delhi, for the preparation of alcohol control samples. Sterile, pharmaceutical grade soda-lime-silica glasswares was used for the preparation of control samples. The control samples were prepared according to the existing method of preparation of centesimal scale of potencies as described in the HPI.[13] Potencies were prepared at the ratio of 1:99 of the previous potency to the vehicle. Ten powerful downward strokes on a hard, elastic body were applied for the preparation of potencies. Separate glassware was used for the preparation of control samples of alcohol.
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Instruments
Dynamic light scattering (DLS) analysis was conducted with Horiba scientific nanopartica SZ-100, path length 100 nm. It helped to analyse the NPs and find their average size.
High resolution transmission electron microscopy (HRTEM) was conducted in a Jeol TEM 2100 with an operating voltage 200 kV; a 200-mesh carbon-coated copper grid was used for the analysis of the sample. The energy dispersive spectroscopy (EDS) analyses were performed with an Oxford instrument INCA, which helped to analyse the elemental composition of the NPs. The HRTEM and the EDS analyses were performed simultaneously. Selected area electron diffraction (SAED) images were captured during the HRTEM analysis.
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Preparation of Samples and Analysis
DLS Analysis
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DLS analysis of Platina: The selected samples of UHPs of Platina were sonicated for 20 minutes at 50 Hz. Immediately after sonication, 2 mL of the drug solution was taken in a well-cleaned quartz cuvette and mounted into the DLS chamber for analysis.
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DLS analysis of alcohol: The selected samples of pharmaceutical grade unsuccussed alcohol and potentized Alcohol were sonicated and analysed, as in the case of Platina.
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HRTEM and EDS Analyses
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HRTEM and EDS analyses of Platina: Samples of Platina were sonicated for 20 minutes at 50 Hz. One micro-drop of the solution was taken from the middle of the bottle with a micro-pipette and dropped on the TEM grid. The grid was dried overnight under an infrared lamp. The grid was mounted on the TEM chamber and the NPs were identified. For Platina samples bright-field TEM images were taken and the particle size was measured. SAED images were taken during the TEM analysis. Simultaneously, EDS was used to determine the composition of the NPs.
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HRTEM and EDS analyses of alcohol: The control samples of pharmaceutical grade unsuccussed alcohol and potentised Alcohol were sonicated and analysed under HRTEM, as in the case of Platina. EDS analysis could not be performed, as no particles were found during the HRTEM analysis.
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Results
DLS Analyses of Platina and Alcohol Control Samples
The DLS analyses of Platina 30c to CM potencies showed the presence of NPs with a mean particle size of 1.3 nm (30c, [Fig. 1A]), 5.00 nm (200c), 0.7 nm (1M), 1.7 nm (10M), 6.2 nm (50M) and 6.5 nm (CM) [[Supplementary files: 1.1]—DLS image of Platina 30c; [1.2]—DLS image of Platina 200c; [1.3]—DLS image of Platina 1M; [1.4]—DLS image of Platina 10M; [1.5]—DLS image of Platina 50M; [1.6]—DLS image of Platina CM]. The supplementary files are available online only.
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The DLS analyses of pharmaceutical grade unsuccussed alcohol and Alcohol 6c, 12c and 30c ([Fig. 1B]) did not show the presence of any particle [[Supplementary files: 2.1]—DLS image of pharmaceutical grade unsuccussed alcohol; [2.2]—DLS image of Alcohol 6c; [2.3]—DLS image of Alcohol 12c; [2.4]—DLS image of Alcohol 30c]. The supplementary files are available online only.
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HRTEM and EDS Analyses of Platina and Alcohol Control Samples
Platina 30c, 200c, 1M, 10M, 50M and CM potencies were analysed by HRTEM and EDS. The results are given as HRTEM images ([Figs. 2A] and [B], [3A] and [B], [4A] and [B], [5A] and [B], [6A] and [B] and [7A] and [B]), which clearly demonstrate the presence of NPs and aggregates. NPs showed polydispersity in relation to their size and shape. The morphology of NPs was different from 30c to CM; moreover polydispersity was noticed within the same potency.
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Confirmation of the Elemental Composition of Particles by EDS
EDS analysis was performed and the elemental composition of the particles was identified in all the samples ([Table 1]). EDS is used to analyse the elemental composition of solid surfaces. During the analysis the X-ray emission is stimulated by irradiation of the surface with a high energy beam of charged particles. Excitation of the electronic structure of an atom can produce an X-ray emission, the energy signature of which is a unique characteristic of each element. Therefore, a signature spectral fingerprint can be obtained, allowing identification of an element via comparison with reference spectra. Platinum (Pt) was detected in all the potencies of Platina ([Supplementary files 3.1] to [3.6]: EDS graphs of Platina 30c, 200c, 1M, 10M, 50M and CM respectively; available online only).
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SAED Analysis Confirmed the Presence of Platinum Dioxide
SAED is a crystallographic experimental technique performed using a transmission electron microscope. In SAED, standard crystallographic diffraction patterns are used to identify the material. In a SAED pattern, the spots are due to the specific electron diffraction from a single crystal and the rings are due to the diffraction from multiple crystals. SAED analysis was performed simultaneously in 30c, 200c, 1M and 10M potencies of Platina during the experiment ([Figs. 2C], [3C], [4C] and [5C]). Analysis of the d-space value of 30c to 10M potencies of Platina confirmed the presence of platinum dioxide (PtO2).
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Control Samples of Alcohol Did Not Show Any Particles
The control samples of alcohol (pharmaceutical grade unsuccussed alcohol and potentised Alcohol [6c, 12c and 30c]) were analysed with DLS and HRTEM: no particles were found on either analysis. The DLS analyses of the alcohol control samples were blank, without any graph, due to a complete absence of particles in the analysed solution.
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HRTEM and EDS Analyses of Platina by potency
Weight percentages of the elements present in the NPs were measured using EDS attached to the HRTEM. All the potencies of Platina from 30c to CM showed the presence of the element platinum in various weight percentages ([Table 1]). During the HRTEM analysis, the sizes of NPs were measured. The measurement given shows the size of the smallest and the largest particles in the fields ([Table 2]).
Platina 30C
Particles were identified in Platina 30c ([Fig. 2A, B]). The size of particles measured was between 3.31 and 12.7 nm. Particles were seen isolated as well as in aggregation. On EDS, the weight percentage of platinum was 16.93 and iron was 83.07 ([Supplementary file 3.1], available online only—EDS graph of Platina 30c). SAED analysis identified the planes of PtO2 ([Fig. 2C]) in Platina 30c.
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Platina 200C
NPs were detected in different fields ([Fig. 3A, B]), with particle size 0.69 to 3.01 nm. In 200c Platina, EDS analysis revealed the presence of platinum (weight percentage, 2.32), carbon (weight percentage, 96.51) and copper (weight percentage, 1.17) ([Supplementary file 3.2], available online only—EDS graph of Platina 200c). d-Space analysis using SAED in 200c potency confirmed the presence of platinum in the form of PtO2 ([Fig. 3C])
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Platina 1M
In 1M potency Platina, particles were identified ([Fig. 4A, B]) in different fields and the measurement varied from 2.28 to 7.89 nm. EDS analysis of the NPs revealed the weight percentage of platinum as 32.74, copper as 39.39 and zinc as 27.86 ([Supplementary file 3.3], available online only—EDS graph of Platina 1M). Analysis of the SAED pattern ([Fig. 4C]) confirmed the presence of PtO2.
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Platina 10M
HRTEM images ([Fig. 5A, B]) of Platina 10M showed unique clusters and a large number of independent particles in different fields. The particle size measured was 3.67 to 5.51 nm. EDS analysis was confirmatory for platinum (weight percentage, 19.62), copper (74.91) and iron (5.48) ([Supplementary file 3.4], available online only—EDS graph of Platina 10M). d-Space analysis by SAED ([Fig. 5C]) showed that platinum was present as PtO2.
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Platina 50M
HRTEM images of Platina 50M ([Fig. 6A, B]) showed the presence of NPs in various fields. Particles were seen in isolation as well as in aggregation, with the size ranging between 2.38 and 5.99 nm. EDS showed that weight percentage of platinum was 0.68 and carbon 99.32 ([Supplementary file 3.5] available online only—EDS graph of Platina 50M).
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Platina CM
In CM potency Platina, HRTEM analysis ([Fig. 7A, B]) showed the presence of particles in various fields. Particles were between 1.94 and 8.54 nm. EDS analysis of the NPs showed the weight percentage of platinum as 44.48 and hafnium as 55.52 ([Supplementary file 3.6] available online only—EDS graph of Platina CM).
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HRTEM Analyses of Control Samples (Pharmaceutical Grade Unsuccussed Alcohol and Potentised Alcohol)
HRTEM images of pharmaceutical grade alcohol ([Fig. 8A]), Alcohol 6c ([Fig. 8B]), Alcohol 12c ([Fig. 8C]) and Alcohol 30c ([Fig. 8D]) did not show the presence of any particle in the fields.
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Discussion
The analysis of Platina 30c to CM potencies, and pharmaceutical grade unsuccussed alcohol and potentized Alcohol (6c, 12c and 30c), has given some clear results. The observations of alcohol control samples under DLS and HRTEM did not show any particles. DLS analysis of Platina showed the presence of NPs in all potencies. The analyses of the samples of Platina with HRTEM, EDS and SAED consistently showed the presence of platinum in the drug solutions. The findings prove that Platina prepared by homeopathic potentization had generated NPs in all the high dilutions, further strengthening the nanopharmacological paradigm in homeopathy.
The DLS analysis of Platina showed the presence of NPs in all sample solutions, with a mean particle size that varied from 1.3 nm in 30c to 6.5 nm in the CM potency. The smallest mean particle size was measured in 1M (0.7 nm) and the largest in CM (6.5 nm). In the HRTEM analysis of Platina, there were NPs in all sample potencies. The smallest NPs were measured in 200c (0.69 nm) and the largest in 30c (12.70 nm). The NPs of all other potencies seen were within this range. It is also observed that the NPs formed in the homeopathic manufacturing process are poly-dispersed, not mono-dispersed as in the case of manufactured NPs in nanotechnology.
In DLS, the mean particle size of the NPs in the solution is measured, whilst in the HRTEM a micro-drop of the solution is used for the analysis and only one selected area of the TEM grid is scanned at a time to identify the particles and measure their size. Therefore, there could be variations in the measurement of the particle size in the same samples by DLS and HRTEM.
EDS analysis of Platina showed the presence of the element platinum in 30c, 200c, 1M, 10M, 50M and CM potencies. Elements like C, Cu, Fe, Zn and Hf were also found in the fields during the study. Among the extra elements found, C and Cu are part of the TEM grid and the exposure to EDS beams can show their presence. The presence of C may increase further due to its presence in the vehicle (sugar of milk) used for the initial stages of preparation of Platina. Presence of Hf is a common machine error in the reading. Therefore, the actual weight percentage of Pt might be much higher than the measured values. The observation of the presence of iron and zinc might indicate impurities that may have originated from the triturated lactose, air contaminants or from containers[17]. EDS analysis is sensitive to beam parameters, topography of sample, acquisition settings, electronic and external field noises, and the atomic number of elements. Therefore the values detected may not be absolute.
SAED analysis of Platina identified planes of PtO2 in the 30c, 200c, 1M and 10M potencies of Platina. Platinum is a noble metal and it is not oxidised in nature, but the UHPs of Platina showed platinum dioxide in all the analysed samples. It is very interesting to note that platinum is oxidised during the process of homeopathic potentization. A toxic effect of platinum NPs reported[18] [19] elsewhere has never been observed in homeopathic clinical practice using UHPs of Platina. Oxidised platinum in nanoscale might be the reason for the non-toxic therapeutic action of UHPs of Platina. The process of potentization in liquid media (pharmaceutical grade alcohol) is unique in the manufacturing of homeopathic UHPs. The solution is powerfully shaken up in a glass container, which generates a large number of NPs. The kinetic energy released during the process of succussion (potentization) could be the factor helping in the formation of NPs and the oxidation of platinum.
DLS and HRTEM analysis of pharmaceutical grade alcohol and the potentized control samples did not show any particles, whereas the original drug substance was consistently seen in all UHP preparations of Platina. These observations are very relevant for future studies on the science of homeopathy.
As the nanoparticulate nature of homeopathic UHPs has been characterised repeatedly[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [14] it is relevant to know how it would influence epigenetic programming in the human genetic system: i.e. in drug-proving experiments and in the context of curative or palliative effects. Many publications have probed the biological action[20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] of homeopathic UHPs. Since NPs of smaller size (<10 nm) have unique chemical, physical and mechanical properties, they can easily penetrate into the cell and nucleus[34] and are able to directly interact with the genetic system:[35] this opens up vast scope for further research within the medical world.
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Conclusion
This study confirms the presence of the source material, platinum, in all UHPs of Platina and the total absence of particles in the alcohol control samples. It shows that presence of the source material in the primary step of potentization is essential to generate NPs in UHPs. The size of NPs of Platina is mostly less than 10 nm, which gives them exceptional capability for size-dependent nuclear entry. The particles are poly-dispersed, not mono-dispersed as in the case of manufactured NPs. Presence of NPs of the source material in all UHPs would point toward nanopharmacology as the therapeutic basis for homeopathy. The SAED analysis of 30c, 200c, 1M and 10M potencies showed the presence of platinum dioxide. Therefore, it is clear that homeopathic potentization is an effective method to oxidise the noble metal platinum to platinum dioxide, thereby nullifying its toxic effects. Further studies based on these findings may bring more definite answers to the question about the therapeutic properties of UHPs.
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Highlights
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HRTEM (high resolution transmission electron microscope) and EDS (energy dispersive spectroscopy) studies revealed that UHPs of Platina contain NPs of the original source material (platinum).
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SAED (selected area electron diffraction) analysis of Platina UHPs showed that platinum is present as platinum dioxide.
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Unsuccussed and potentized Alcohol samples did not contain any particles.
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Conflict of Interest
None declared.
Acknowledgement
The researcher would like to thank the Nanotechnology Laboratory of Mahatma Gandhi University, Kottayam, for the facilities offered.
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References
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Address for correspondence
Publication History
Received: 07 February 2022
Accepted: 04 June 2022
Article published online:
09 January 2023
© 2023. Faculty of Homeopathy. This article is published by Thieme.
Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany
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References
- 1 Chikramane PS, Suresh AK, Bellare JR, Kane SG. Extreme homeopathic dilutions retain starting materials: a nanoparticulate perspective. Homeopathy 2010; 99: 231-242
- 2 Rajendran ES. Nanoparticle characterization of Homeo Agrocare (agro homeopathic drug) by HRTEM and EDS. Int J High Dilution Res 2020; 19: 10-22
- 3 Bell IR, Muralidharan S, Schwartz GE. Nanoparticle characterization of traditional homeopathically-manufactured silver (Argentum metallicum) medicines and placebo controls. J Nanomed Nanotechnol 2015; 6: 4
- 4 Konovalov AI, Ryzhkina IS. Highly diluted aqueous solutions: formation of nano-sized molecular assemblies (nanoassociates). Geochem Int 2014; 52: 1207-1226
- 5 Kar S, Bandopadhyay P, Chakraborty S. et al. Derivation of an empirical relation between the size of the nanoparticle and the potency of homeopathic medicines. Int J High Dilution Res 2015; 14: 2-7
- 6 Demangeat JL. Gas nanobubbles and aqueous nanostructures: the crucial role of dynamization. Homeopathy 2015; 104: 101-115
- 7 Rajendran ES. An evaluation of Avogadro's number in the light of HRTEM and EDS studies of high dilutions of Ferrum metallicum 6, 30, 200, 1M, 10M and 50Mc. Int J High Dilution Res 2015; 14: 3-9
- 8 Rajendran ES. Nano pharmacological aspect of homeopathic drugs – A comparative study of different scales of ultra-high dilutions based on HRTEM analysis and NP characterization of homeopathic drug Natrum muriaticum 6C–CM and LM1–LM30. Med Pharm Sci 2017; 3: 89-106
- 9 Rajendran ES. Homeopathy a material science! Nanoparticle characterization of Aurum metallicum 6c, 30c, 200c, 1000c, 10000c, 50000c and 100000c. Int J Curr Res 2017; 9: 48923-48927
- 10 Rajendran ES. Homeopathy seen as personalised nanomedicine. Homeopathy 2019; 108: 66-70
- 11 Rutten L, Mathie RT, Fisher P, Goossens M, van Wassenhoven M. Plausibility and evidence: the case of homeopathy. Med Health Care Philos 2013; 16: 525-532
- 12 Dei A. Experimental evidence supports new perspectives in homeopathy. Homeopathy 2020; 109: 256-260
- 13 Homeopathic Pharmacopoeia of India Vol II. , 2nd ed. Government of India, Ministry of Health and Family Welfare; 1984: 10-11
- 14 Bell IR, Schwartz GE. Adaptive network nanomedicine: an integrated model for homeopathic medicine. Front Biosci (Schol Ed) 2013; 5: 685-708
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