G01N33/5436

Biosensor platform and method for the simultaneous, multiplexed, ultra-sensitive and high throughput optical detection of biomarkers

Biosensing platform for simultaneous, multiplexed, high throughput and ultra-sensitive optical detection of biomarkers labelled with plasmonic nanoparticles, the platform being provided with a biosensor, a broadband and continuous spectrum illumination source, an optical detector for simultaneously capturing spatially resolved and spectrally resolved the scattering signal of each individual nanoparticle, an autofocus system and an optical system adapted to collect the scattered signal of the biosensor's surface onto the optical detector, the platform being provided with translation means for the optical system and/or the biosensor, such that the optical system and the biosensor can be displaced relative to each other in the three dimensions, and wherein the processing means are adapted to: i) simultaneously capture spatially and spectrally resolved scattering signals from each nanoparticle individually, and ii) to analyze these signals simultaneously with the capture process.

Methods and systems for circulating tumor cell capture
10786813 · 2020-09-29 ·

Methods and systems are provided for isolating circulating tumor cells from a peripheral blood supply in order to diagnose early stage cancer and/or evaluate tumor status. In one example, a system for capturing circulating tumor cells includes a substrate having a cell-capturing region, the cell-capturing region having a curved, switchback-like shape and including an array of micropillar structures within the curved, switchback-like shape.

COMPOSITIONS AND METHODS FOR MOLECULAR LABELING

The invention provides barcode libraries and methods of making and using them including obtaining a plurality of nucleic acid constructs in which each construct comprises a unique N-mer and a functional N-mer and segregating the constructs into a fluid compartments such that each compartment contains one or more copies of a unique construct. The invention further provides methods for digital PCR and for use of barcode libraries in digital PCR.

METHODS AND SYSTEMS FOR CELL-BASED NON-INVASIVE PRENATAL TESTING
20200290045 · 2020-09-17 ·

Methods and systems are provided for isolating fetal cells from a maternal blood supply in order to perform non-invasive prenatal testing. In one example, a system for non-invasive prenatal testing includes a substrate coated with a cell-capturing surface, the cell-capturing surface including an array of pillar-like structures, each pillar-like structure including a plurality of intersecting arms.

Virus-Like Particle (VLP) Based Small Molecule-Protein Interaction Trap
20200278345 · 2020-09-03 ·

This disclosure relates to a virus-like particle in which a small molecule-protein complex is entrapped, ensuring the formation of the small molecule-protein complex under physiological conditions, while protecting the small molecule-protein complex during purification and identification. The disclosure further relates to the use of such virus-like particle for the isolation and identification of small molecule-protein complexes.

METHOD FOR DETECTING ACUTE BORNA DISEASE VIRUS (BDV) INFECTIONS, AND DIAGNOSTIC KIT THEREFOR, IN PARTICULAR IN COMBINATION WITH METHODS FOR DISTINGUISHING ACUTE FROM CHRONIC AND LATENT BDV INFECTIONS, AND DIAGNOSTIC KITS THEREFOR
20200271649 · 2020-08-27 ·

One aspect of the present invention is directed to a method for detecting acute Borna Disease Virus (BDV) infections. According to the invention, the presence of heterodimers of p24 BDV phosphoprotein and p40 BDV nucleoprotein in a sample is determined by means of antibodies of both proteins using a sandwich ELISA. The invention also relates to a diagnostic kit for a sandwich ELISA for detecting mute BDV infections. Said kit uses a antibody of p24 BDV phosphoprotein and a second primary antibody of p40 BDV nucleoprotein, at least one reporter-molecule-labelled secondary antibody, means for immobilising a primary antibody on a surface, and instructions for carrying out the method according to the invention. The invention also relates to the combination of the method according to the invention and the new diagnostic kit with known methods for detecting circulating immune complexes (CIC) and antibodies. Acute BDV infections are thus distinguished from chronic and latent ones (humans and animals), allowing, for example, differential diagnosis and treatment monitoring for diseased individuals but also the identification of health risks depending on infection status in healthy carriers.

COMPOSITIONS AND METHODS FOR MOLECULAR LABELING

The invention provides barcode libraries and methods of making and using them including obtaining a plurality of nucleic acid constructs in which each construct comprises a unique N-mer and a functional N-mer and segregating the constructs into a fluid compartments such that each compartment contains one or more copies of a unique construct. The invention further provides methods for digital PCR and for use of barcode libraries in digital PCR.

Non-Invasive Prenatal Test on Single Fetal Cells Isolated From Blood of Pregnant Women
20200269245 · 2020-08-27 ·

Methods and systems are provided for isolating fetal cells from a maternal blood supply in order to perform non-invasive prenatal testing. In one example, a system for non-invasive prenatal testing includes a substrate coated with a cell-capturing surface, the cell-capturing surface including an array of pillar-like structures, each pillar-like structure including a plurality of intersecting arms.

MULTI-WELL MICROPATTERNING BY ABLATION
20200256852 · 2020-08-13 ·

The present invention is drawn to the generation of micropatterns of biomolecules and cells on standard laboratory materials through selective ablation of a physisorbed biomolecule with oxygen plasma. In certain embodiments, oxygen plasma is able to ablate selectively physisorbed layers of biomolecules (e.g., type-I collagen, fibronectin, laminin, and Matrigel) along complex non-linear paths which are difficult or impossible to pattern using alternative methods. In addition, certain embodiments of the present invention relate to the micropatterning of multiple cell types on curved surfaces, multiwell plates, and flat bottom flasks. The invention also features kits for use with the subject methods.

Methods and systems for cell-based non-invasive prenatal testing
10688492 · 2020-06-23 ·

Methods and systems are provided for isolating fetal cells from a maternal blood supply in order to perform non-invasive prenatal testing. In one example, a system for non-invasive prenatal testing includes a substrate coated with a cell-capturing surface, the cell-capturing surface including an array of pillar-like structures, each pillar-like structure including a plurality of intersecting arms.