A nanoparticle that captures fingerprints, an invisibility cloak in reach, and iron fertilizing the ocean

Plus: US begins building 1st non-light water design nuclear reactor in 50 years                                                                                                                                                                                                                                                                                                                                                                                                                 September 14, 2024 | [Read Online]( 🗓️ [Less than a month to Engineering Talks' automotive webinar]( Our new and free webinar, "[The Future of Automated Automotive Quality Inspection](," is coming soon! Don't miss the opportunity to discover integrated solutions for automotive metrology, participate in Q&A sessions, and more. [Join our webinar]( Picking up on visible and non-visible fingerprints at a crime scene is about to get a whole lot easier, thanks to a fluorescent nanoparticle that could revolutionize forensic science. Diamond’s labSAXS used a combination of nanoparticles with special properties, such as MCM-41, chitosan, and dansylglycine, to create a new solution that can capture fingerprint residue in unprecedented detail. The new study, published in the Royal Society of Chemistry, outlines how the new forensic tool can be used on various surfaces and forgoes the need to send samples to a lab. Dive deeper into this [Must-Read](. 🔥Today’s job of the day as featured on [jobs.interestingengineering.com](: > [Senior Machine Learning Engineer]( > [Software Engineer]( Reading Time: 4 mins Did a friend forward this e-mail to you? [Subscribe here.]( MUST-READ ☝ [New nanomaterial to be used at crime scenes without lab, can transform forensics]( According to the study, [traditional methods]( for imaging fingerprints include optical, physical, and chemical processes between the [developing agent]( (often a colored or fluorescent reagent) and the fingermark [residue](. A few [studies]( in the past showed that [chitosan]( could be used to [detect]( and enhance latent [fingerprints](, but the new study shows that hierarchically structured MSNs modified with chitosan could enhance the interaction between the development reagent and fingerprint residue. Not only is the [nanoparticle]( versatile and effective, but it can also be applied directly to the crime scene without lab facilities, which could advance the field of [forensics](. ✨ [Breakthrough wave scattering method could bring invisibility cloak closer to reality]( A new [software]( that simulates complex wave scattering for metamaterial design could bring the [invisibility cloak]( a step closer to reality. Though the [T-matrix]( has been used since the 1960s, researchers have made a big step forward in computing it for particles much larger than the wavelength and with complex [shapes](. This development will improve the ability to rapidly design [metamaterials]( that amplify, block, or [deflect]([Â]([waves](, thereby, in the latter case, rendering them [invisible](. 🌊 [Billions of tons of CO2 could be captured as ocean iron fertilization revived]( Scientists are revisiting the controversial technique of [ocean iron fertilization](. Iron is believed to promote the growth of [phytoplankton](, so scientists hope to tackle [carbon emissions]( this way, though not uncontroversially. A computer model has suggested that the annual introduction of one to [two]([Â]([million]([Â]([metric tons]( of iron into the ocean could result in the removal of [45 billion metric tons of carbon]( by the year 2100. Nevertheless, the long-term [ecological impacts]( of large-scale iron fertilization are still [uncertain](. Love what you're reading, but too many emails? Sign up to IE+ to get Blueprint Weekly, our exclusive weekly premium newsletter that gives all the insights you love in a more digestible weekly format– plus, enjoy an Ad-Free experience on our website. Try IE+ today for just $1 in the first month. [Subscribe here]( HOT TOPICS OF THE DAY SCIENCE > A research team has successfully recreated and observed the extreme conditions found inside stars using a much smaller laser than previously employed. 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