Quantum Dots in Bio-diagnostics

The future of bio-diagnostics

Quantum dots are nanoparticles that exhibit physical properties distinct from their bulk counterparts. They fluoresce into different colors, they can be excited to emit waves, and they can be tuned based on size.

In 1998, a paper was published describing how Quantum Dots can be encapsulated in aqueous materials. That initial publication was followed by more than 100,000 manuscripts on the topic., More than 10,000 papers were published in reputable journals about the applicability of Quantum Dots to medical science, including in-vitro imaging, drug delivery systems and bio-diagnostics.

Alex Zhang developed the foundational technology for using Quantum Dots in diagnostic devices for identifying virtually any kind of biomarker. In 2013, Alex created the prototype for the world’s first Quantitative bio-diagnostic device.. Alex is now a core member of our NanoHarmonics team.

Fast forward to the present.

NanoHarmonics Inc. is now validating the first and only prototype of the Quantum Dot Rapid and Quantitative Neutralizing Antibody (NAB) Test. NAB has passed initial validations in Asia on hundreds of patients with promising initial results. The NAB test is designed to give quantitative readings of the level of N-type Covid19 antibodies present in the body. Giving medical providers a quantitative reading on the presence of antibodies (not just the simple “yes” or “no” that current tests provide) will give the patient a more accurate measure of their current condition, and an extra measure to use to decide on the need for vaccinations and/or boosters.

NanoHarmonics is simultaneously validating our Quantum Dot Rapid and Quantitative Antigen Test Prototype. Our Antigen Test, subject to further tests and validations, has been exhibiting a 99% accuracy rate (using mPCR as comparable devices) as against the 50% to 70% in devices that are currently available in the market. In an infectious disease scenario, that increase in accuracy is a very significant benefit.

Jimi Sta. Maria, NanoHarmonics’ Founding Chairman and CEO, has been working with Alex Zhang on adding the use of frequency and resonance, as a measure to determine the sizes of Quantum Dots, pre-bio-conjugation as well as post, to eliminate the possibility of cross-bleedings due to resonance issues. Jimi has also developed the initial schematic designs for the first multi-biomolecule quantum dot diagnostic devices in the USA. He is developing the architecture for platform, blockchain, and IOT with data fidelity, anonymization, and military grade encryption features to collect surveillance data for predictive modeling for infectious diseases. Our existing prototypes are already more technologically advanced than what is currently in the market, and further innovations in our prototypes are already underway, including portable units that can be deployed in the remotest parts of the world integrated with portable power sources, compact units for internet connections and secured data transmission protocols.

NanoHarmonics is also developing DIRECT TO CONSUMER diagnostic devices that don’t require FDA approvals. With these devices and our portable units, we aim to democratize testing to the level of the medical practitioners and the patients themselves. Tests in our current development cycle include: (a) Vitamin D Test, (b) Ovarian Reserve Test, (c) Syphilis Test, (d) Hepatitis C Test, and (e) HIV Tests. There are more than two dozen additional tests that are characterized by the FDA as DIRECT TO CONSUMER tests.

NanoHarmonics also sees a significant opportunity to use the convergent technologies of diagnostics, data platforms and delivery systems to provide far better outcomes in the field of infectious disease. We have already started work on rapid and quantitative diagnostics for malaria, including data surveillance and mapping, and anti-malaria drug delivery systems.

NanoHarmonics is collaborating with a major US university to identify biomarkers that are relevant to specific drugs that are in the process of being developed. Using bio-conjugation with Quantum Dots in this way, Quantitative biomarker tools can potentially accelerate drug development as well as reduce the cost of such development.

“That our generation has the capability to work with the smallest kernels of our existence is truly astounding. To use atoms to measure biomarkers…then to use bits to organize and secure the data into useful information…then use those information to develop drug delivery systems that will benefit mankind. It’s the convergence of technologies based on discoveries surrounding the atom, the bit, and the cell that will drive the next technological revolution in our society.”


We have the foundational technology to develop rapid and quantitative diagnostics tests for different biomarkers using Quantum Dots. The quantitative features as well as the accuracy levels of our tests make them ideal for immunity level detection, biomarker monitoring in drug development, infectious diseases management through population studies for predictive models, and  biomarkers trends monitoring for personal health.


We are developing a companion secured and encrypted data platform for our Quantum Dot diagnostics. Numerical data from test results will be organized and managed to allow people to monitor trends of biomarkers associated with their health concerns, anonymized positive or negative population data for infectious diseases management, and monitor biomarkers to accelerate drug development for pharmaceutical companies.


We are partnering with several companies who bring novel drug delivery systems that will benefit from our Quantum Dot diagnostics technology and our data platform to participate in population studies that we are spearheading to create predictive models for infectious diseases.  We are helping in the formulation of  new drugs with potential increases in the bioavailability of beneficial APIs while substantially reducing toxicity and side effects.