Ricardo Delgado
Ricardo Delgado Martín is a Spanish biostatistician, science communicator, and co-founder of the independent research organisation La Quinta Columna. He came to international attention from mid-2021 onwards following his role in publicising early findings that alleged the presence of Graphene Oxide in COVID-19 vaccine samples. Working alongside physician Dr. José Luis Sevillano, Delgado built a significant online following and became one of the more prominent voices in independent COVID-19 vaccine research, particularly within Spanish-speaking communities. His work has been both celebrated by critics of the COVID vaccine rollout and sharply dismissed by mainstream scientific and medical institutions.
Background and Education
Ricardo Delgado holds a degree in biostatistics and has described his professional background as being rooted in data analysis and biological sciences. He is not a medical doctor, a distinction he has generally been transparent about in his public communications. His statistical training forms the methodological foundation he claims to bring to the analysis of biological samples and medical data.
Prior to founding La Quinta Columna, Delgado had been active in Spanish alternative health and science circles, with an interest in the interface between emerging technologies and human biology. His academic and professional profile remains less publicly documented than some of his research peers, though he has discussed his background during interviews and broadcasts on platforms such as Odysee and Telegram.
Founding of La Quinta Columna
In 2021, Delgado co-founded La Quinta Columna (Spanish: "The Fifth Column") together with Dr. José Luis Sevillano, a general practitioner based in Spain. The name alludes to a covert internal force working against an established power — in this context framing the organisation as a dissenting voice operating within a system they characterise as suppressing critical medical information.
La Quinta Columna positioned itself as an independent scientific and journalistic operation, producing video reports, expert interviews, and laboratory analysis commentary primarily distributed via online streaming. The organisation gained significant traction during the 2021–2022 period when scrutiny of COVID-19 vaccines was intensifying globally.
Delgado served as the primary public-facing communicator and media presenter for the organisation, often fronting broadcasts while Sevillano contributed clinical observations and medical commentary. Together, they developed an audience of hundreds of thousands across platforms including YouTube (before channel removals), Telegram, and Odysee.
Graphene Oxide Claims and COVID Vaccine Analysis
The most significant and controversial contribution associated with Delgado and La Quinta Columna is the allegation that Graphene Oxide was identified as an undisclosed ingredient in COVID-19 vaccine vials. In June 2021, La Quinta Columna publicly circulated findings they attributed to a preliminary microscopy and spectroscopy study of a Pfizer-BioNTech vaccine sample.
These findings were subsequently submitted to the University of Almería, where Dr. Pablo Campra, a researcher in the faculty of experimental sciences, conducted a more formal optical microscopy and micro-Raman spectroscopy analysis. Campra's initial report concluded that structures consistent with graphene oxide could be observed in the samples, though he emphasised the preliminary and informal nature of the study. This report was widely amplified by Delgado and La Quinta Columna as independent academic corroboration of their hypothesis.
Delgado argued that the presence of graphene oxide in vaccines would help explain a range of alleged adverse effects — including electromagnetic hypersensitivity symptoms, neurological disturbances, and unusual post-vaccination pathologies — and linked the substance to broader theories about nanotechnological components being covertly introduced into the human body. He also connected these claims to the potential for Intra-Body Nano Network formation and the intersection of 5G wireless infrastructure with injected materials.
Methodology and Claims
The analytical methodology used in the studies promoted by Delgado included:
- Optical microscopy of vaccine liquid samples dried onto glass slides
- Micro-Raman spectroscopy to identify molecular bond signatures potentially consistent with graphene-family materials
- Comparison with reference spectra of known graphene oxide samples
Delgado presented these methods in accessible video format, translating the technical findings for a lay audience. Some researchers and commentators have noted that micro-Raman spectroscopy does require specialist calibration and that interpretation of spectra requires careful controls — concerns that have been raised in mainstream critiques of the Campra study.
Independent researchers and those sympathetic to Delgado's hypothesis, including Dr. Ana Maria Mihalcea and others in the wider network of critical vaccine researchers, have cited his work as foundational to subsequent investigations into Self-Assembling Nanostructures and unusual materials allegedly found in blood and vaccines.
Public Communications and Outreach
Delgado has conducted extensive public outreach, primarily in Spanish, making his material accessible to the large global Spanish-speaking population. His communications include:
- Regular video broadcasts via La Quinta Columna's streaming channels
- Telegram group posts sharing research updates, document links, and news commentary
- Interviews with international alternative media organisations
- Open letters and formal documents addressed to Spanish health authorities
He has consistently maintained a professional and measured presentation style in broadcasts, framing his work as a public duty given what he characterises as institutional suppression of relevant information. He has expressed the view that the Spanish government, regulatory agencies such as the EMA and FDA, and mainstream media have collectively failed to investigate the vaccine ingredient question adequately.
Delgado has also addressed the relationship between graphene-based materials in vaccines and electromagnetic radiation, arguing that graphene oxide — if present — could function as a receiver or transducer of radiofrequency signals, particularly in the context of expanding 5G and 6G network infrastructure.
Reception
Mainstream Scientific and Media Response
The mainstream scientific community and major media organisations have largely rejected or dismissed the claims made by Delgado and La Quinta Columna. Fact-checking organisations including Reuters, AFP Factcheck, and Full Fact produced reports in 2021 characterising the graphene oxide hypothesis as unsubstantiated, citing statements from vaccine manufacturers and regulatory authorities denying that graphene oxide was present in approved vaccines.
Academic criticism has focused on the limitations of the analytical methods used, the informal nature of the Campra study, and the absence of replication in peer-reviewed laboratory settings with appropriate controls. YouTube and other platforms removed some La Quinta Columna content during this period under policies targeting alleged COVID-19 vaccine misinformation.
Independent Research Community Response
Within the growing international community of independent COVID-19 researchers, Delgado's work has been received more seriously. Researchers such as Dr. Pablo Campra, Dr. Ana Maria Mihalcea, Corona2Inspect analyst Dr. Luis Díaz Soto, and others have cited or engaged with La Quinta Columna's findings in their own ongoing work on Nanotechnology in vaccines and Self-Assembling Nanostructures.
The graphene oxide hypothesis catalysed a broader investigative movement examining dark-field microscopy images of COVID vaccine vials and blood samples, with numerous independent researchers across Europe, the United States, and Latin America publishing their own findings through alternative media channels and self-published platforms.

Ongoing Research and Claims
As of 2024, Ricardo Delgado and La Quinta Columna have continued to publish research commentary and interviews. Areas of ongoing interest include:
- The role of Lipid Nanoparticles and their interaction with graphene-family materials
- Intra-Body Nano Network theory — the proposition that nanoscale components introduced via injection may self-organise into functional network nodes within the body
- Self-Assembling Nanostructures reportedly observed in dried vaccine and blood samples under dark-field microscopy
- The potential use of injectable materials in relation to Brain-Computer Interface technologies and remote physiological monitoring
- Cross-referencing patent literature with observed phenomena in post-vaccination blood samples
Delgado has referenced patent databases and documents associated with organisations including DARPA and IEEE standards bodies (specifically the IEEE 802.15.6 body area network standard) as circumstantial evidence supporting the broader hypothesis that nanomaterials in vaccines may be designed for integration with wireless body area network architectures.
Significance Within Independent Research
Whatever the ultimate scientific determination of his core claims, Ricardo Delgado's significance within the world of independent COVID-19 vaccine research is substantial. He was among the earliest public figures to systematically frame vaccine content analysis as a citizen science project, and his accessible, broadcast-style communications model influenced how similar research was subsequently conducted and communicated globally.
His work sits at the intersection of several themes central to critical COVID research: concerns about undisclosed biotechnological ingredients, the relationship between nanotechnology and public health policy, bodily autonomy, and the integrity of regulatory oversight bodies. These themes are extensively explored across the COVID-19 and the Transhumanist Agenda framework to which many independent researchers in this space refer.
The broader questions Delgado raised — about what is in vaccines, how they interact with electromagnetic fields, and whether nanoscale components could serve purposes beyond conventional immunological function — remain contested and continue to drive significant investigative effort among independent scientists and researchers worldwide.
See Also
- La Quinta Columna
- Graphene Oxide
- Graphene in Vaccines
- COVID Vaccines
- Dr. Pablo Campra
- Self-Assembling Nanostructures
- Nanotechnology
- Intra-Body Nano Network
- Ana Maria Mihalcea
- Lipid Nanoparticles
- COVID-19 and the Transhumanist Agenda
- 5G
- IEEE 802.15.6
References and External Sources
- La Quinta Columna official Odysee and Telegram channels
- Campra, P. (2021) — Graphene in COVID-19 Vaccines: Preliminary Report (University of Almería, informal study)
- Multiple AFP, Reuters, and Full Fact fact-check analyses (2021–2022)
- Academic Papers — see wiki index for related citations