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Crisscross Nanoseed Detection: Nanotechnology-Powered Infectious Disease Diagnostics
This nanotech-based diagnostic platform uses a unique nucleation mechanism that assembles a DNA "nanoseed" in the presence of a pathogen-derived biomarker that then is amplified within 15 minutes to create a signal for easy detection. It is highly robust, and cost-effective, and can be adapted to detect a variety of biomarkers.
DNA Nanotechnology Tools: From Design to Applications
DNA nanostructures with their potential for cell and tissue permeability, biocompatibility, and high programmability at the nanoscale level are promising candidates as new types of drug delivery vehicles, highly specific diagnostic devices, and tools to decipher how biomolecules dynamically change their shapes, and interact with each other and with candidate drugs. Wyss Institute researchers are...
Toehold Switches for Synthetic Biology
The burgeoning field of synthetic biology is designing artificial gene circuits that recognize molecules in their environment and respond by regulating genes with desired activities. In the future, such capabilities could allow the engineering of cells as diagnostic or therapeutic devices, factories for the production of clinically or industrially coveted molecules, and as specialized devices...
Toehold Probes for Nucleic Acid Detection
The accurate detection of specific DNA or RNA sequences is important for many research and diagnostic applications, and unspecific detection of similar sequences that can differ by only a single nucleotide can give false positive results. In addition, researchers and clinicians would like to accurately test for presence or absence of multiple single base changes...
DNA Nanostructures for Drug Delivery
Researchers at the Wyss Institute have developed two methods for building arbitrarily shaped nanostructures using DNA, with a focus on translating the technology towards nanofabrication and drug delivery applications. One proprietary nanofabrication technique, called “DNA-brick self-assembly,” uses short, synthetic strands of DNA that work like interlocking Lego® bricks. It capitalizes on the ability to program...
Multiplexed Molecular Force Spectroscopy
Programmable DNA nanoswitches, invented at the Wyss Institute, can now be used in combination with a benchtop Centrifuge Force Microscope (CFM) as a highly reliable tool to observe thousands of individual molecules and their responses to mechanical forces in parallel. By analyzing the responses of single molecules under conditions where they experience such forces, it is possible...
Inexpensive Super-Resolution Microscopy
Wyss Institute scientists have developed a highly versatile and inexpensive microscopic imaging platform designed to visualize objects with molecular-scale resolution and unprecedented complexity. The DNA-powered imaging technology can reveal the inner workings of cells at the single molecule level, using conventional microscopes found in most laboratories. Key to the Wyss Institute’s DNA-driven imaging super resolution...