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Categories: Engineering: Biometric, Physics: Acoustics and Ultrasound

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Researchers have moved closer toward this goal by developing a nanopore sequencing platform that, for the first time, can detect the presence of nucleobases, the building blocks of DNA and RNA.

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New research shows 3D printers can be identified by thermodynamic properties, which could could aid intellectual property, security.

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Careful criminals usually clean a scene, wiping away visible blood and fingerprints. However, prints made with trace amounts of blood, invisible to the naked eye, could remain. Dyes can detect these hidden prints, but the dyes don't work well on certain surfaces. Now, researchers have developed a fluorescent polymer that binds to blood in a fingerprint -- without damaging any DNA also on the surface -- to create high-contrast images.

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Mathematicians and engineers have teamed up to show how ultrasound waves can organize carbon particles in water into a sort of pattern that never repeats. The results, they say, could result in materials called 'quasicrystals' with custom magnetic or electrical properties.

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Since the introduction of plastic (polymer) banknotes in 2016, the number of counterfeit notes on the streets has increased, however, researchers have developed a novel technique called Polymer Substrate Fingerprinting, which identifies every banknote's fingerprint which is unique and unclonable.

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A new brain imaging application uses ultrasound to predict intended movements before they happen.

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A new study suggests coronaviruses, including the virus that causes COVID-19, may be vulnerable to ultrasound vibrations. Simulations suggest ultrasound waves at medical imaging frequencies can cause the virus' shell and spikes to collapse and rupture.

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Scientists have developed a quadruple fusion optical and ultrasound imaging system using a transparent ultrasound transducer.

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Researchers have developed a way to coax microscopic particles and droplets into precise patterns by harnessing the power of sound in air. The implications for printing, especially in the fields of medicine and electronics, are far-reaching.

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The remarkable genetic scissors called CRISPR/Cas9, the discovery that won the 2020 Nobel Prize in Chemistry, sometimes cut in places that they are not designed to target.

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Scientists have succeeded in propelling microvehicles against a fluid flow using ultrasound. In future, these tiny vehicles are set to be introduced into the human bloodstream, thereby revolutionizing the field of medicine.

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New research has found that optical coherence tomography (OCT) imaging technology can be utilized to distinguish between legitimate and counterfeit travel documents.

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Researchers are reporting an advancement of a chemical sensing chip that could lead to handheld devices that detect trace chemicals -- everything from illicit drugs to pollution -- as quickly as a breathalyzer identifies alcohol.

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A single strand of hair in a crime scene contains many clues that can help identify a perpetrator. In a recent study, scientists have combined two modern techniques, called surface-enhanced Raman spectroscopy and X-ray fluorescence, to distinguish between different colors in individual hair strands. Both these techniques are almost non-destructive and can be conducted with portable devices, making this a promising way to get supportive evidence in forensic investigations.

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Human fingerprints have a self-regulating moisture mechanism that not only helps us to avoid dropping our smartphone, but could help scientists to develop better prosthetic limbs, robotic equipment and virtual reality environments, a new study reveals.

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Forensic science experts are refining an innovative counter-terrorism technique that checks for environmental DNA in the dust on clothing, baggage, shoes or even a passport.

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Biometric authentication, which uses unique anatomical features such as fingerprints or facial features to verify a person's identity, is increasingly replacing traditional passwords for accessing everything from smartphones to law enforcement systems.

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The CRISPR system is a powerful tool for the targeted editing of genomes, with significant therapeutic potential, but runs the risk of inappropriately editing ''off-target'' sites. However, a new study shows that mutating the enzyme at the heart of the CRISPR gene editing system can improve its fidelity.

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Scientists have developed a tool called FloChip, a new microfluidic take on the widely used chromatin immunoprecipitation (ChIP) technique. By automating and cutting the cost of ChIP and sequential-ChIP, FloChIP has the potential to become a widely used tool for the study of chromatin biology and gene regulation.

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Researcher have used the principles that underpin the whispering-gallery effect to create an unbeatable anti-counterfeiting system. The researchers' system is a microchip consisting of two-step authentication. Step 1 is the visible pattern on the chip. Step 2 is the non-forgeable color fingerprint of the chip. These microchips will be useful for high-security authentication.