The Research about Microplastics Protection

Qi601™ Biofilm Shield™: A Postbiotic Technology Designed to Bind Microplastics and Nanoplastics in the Gut

Overview

Qi601™ Biofilm Shield™ is a patented, orally administered, non-living postbiotic technology derived from inactivated Lactobacillus fermentum Qi6. The Qi6 strain is cultivated under biofilm-promoting conditions to form self-aggregating, high-surface-area macrostructures approximately 200 microns in diameter.

Qi6 has been designated Generally Recognized As Safe (GRAS) by the FDA under GRN No. 0988. Because Qi601™ forms larger biofilm-like structures that are not intended to be absorbed, it is designed to work locally in the gastrointestinal tract as a physical binding matrix.

In laboratory studies, Qi601™ has been evaluated for its ability to bind microplastics and nanoplastics, including particles measuring approximately 10 microns and 100 nanometers. These studies suggest that Qi601™ may help physically sequester plastic particles in the gut and reduce their interaction with intestinal epithelial cells.

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Key Research Findings on Qi601™ and Microplastic Binding

Microplastic and Nanoplastic Binding

Laboratory testing using fluorescence microscopy showed that Qi601™ aggregates can physically associate with fluorescent microplastic and nanoplastic particles on microscope slides and in test tubes. Areas without Qi601™ showed little to no fluorescent signal, supporting the observed binding activity between Qi601™ material and plastic particles.

Dose-Dependent Nanoplastic Adsorption

In test tube experiments, Qi601™ adsorbed up to 87.6% of 100 nm nanoplastics at 3–4 mg concentrations. Adsorption appeared to stabilize at higher doses, suggesting a saturation point in the binding matrix.

High-Surface-Area Biofilm Structure

Qi601™ forms biofilm-like aggregates averaging approximately 200 microns in size. This structure provides a high-surface-area matrix that may support efficient capture of microplastic and nanoplastic particles within the gastrointestinal environment.

Reduced Microplastic Adherence to Human Intestinal Cells

In laboratory tissue culture models using human intestinal epithelial cells, Qi601™ reduced microplastic adherence by 83% compared with untreated controls. These findings suggest that Qi601™ may help limit direct interaction between plastic particles and intestinal cell surfaces in controlled laboratory conditions.

Simulated Gastric Binding Performance

Qi601™ also demonstrated strong binding activity in simulated gastric conditions, with reported binding efficacy of up to 99% in laboratory models.

Early Animal Model Findings

Early animal model research using C. elegans worms showed plastic particles moving out of the gut, with evidence suggesting Qi601™ may help reduce nanoplastic presence in intestinal tissue under experimental conditions.

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What These Findings May Mean

The available research suggests that Qi601™ Biofilm Shield™ may offer a non-systemic, gut-level strategy for addressing microplastic and nanoplastic exposure. Rather than acting through absorption into the body, Qi601™ is designed to work as a physical binding matrix in the digestive tract.

By binding microplastic and nanoplastic particles, Qi601™ may help reduce their interaction with intestinal epithelial cells and support their natural movement through the gastrointestinal system.

These findings position Qi601™ as a promising microbiome-friendly postbiotic technology for daily gut defense from microplastic exposure.

Qi601™ Biofilm Shield™: SEM Imaging Shows Microplastic and Nanoplastic Binding Near Human Intestinal Cells

The scanning electron microscopy image above shows Qi601™ Biofilm Shield™ positioned near the surface of human intestinal cells. In the visualization, human intestinal cells are shown in red, the Qi601™ biofilm matrix is shown in blue, and free-floating 100-nanometer plastic particles are shown in green.

The image illustrates how Qi601™ can physically bind nanoplastic particles in the cellular environment. Rather than being absorbed by intestinal cells, the Qi601™ biofilm-like structure acts as a physical binding matrix, helping capture plastic particles before they interact with the gut lining.

This supports the role of Qi601™ as a non-systemic microplastic and nanoplastic binding technology designed to work within the gastrointestinal tract.

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Conclusion: Qi601™ as a Biofilm Shield™ for Microplastic Defense

Qi601™ uses its biofilm-like structure to help bind microplastics and nanoplastics in the gastrointestinal tract. In vitro and tissue culture studies support its ability to physically capture plastic particles and reduce their interaction with intestinal cells.

This makes Qi601™ a novel, patented nutritional supplement technology designed for daily gut-level microplastic defense.

To better understand how Qi601™ performs under conditions that mimic real digestion, Quorum Innovations conducted laboratory studies using simulated human gastric fluids. These digestive models included acidic pH conditions and digestive enzymes under both fasted and fed states.

In these simulated gastric environments, Qi601™ biofilm aggregates retained their binding activity and captured up to 99% of introduced nanoparticles. Researchers measured the remaining unbound particles in the supernatant using spectrophotometry, comparing samples with and without Qi601™.

The findings suggest that once nanoplastic particles bind to Qi601™, they remain attached in conditions designed to model the human stomach environment. This supports a plausible gut-level pathway in which Qi601™ captures plastic particles early in digestion, before they can reach or interact with the intestinal lining.

Because Qi601™ retains binding activity even in stomach-acid conditions, it may help hold captured plastics as they move through the digestive process, supporting their natural passage through the body.