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Site-selective immobilization of different bioreceptors on individual field-effect transistors, achieved through the use of thermal scanning probe lithography. Each bioreceptor can be tuned to detect a different disease.

The University of Cape Town, along with the Giraffe Conservation Foundation, have conducted a large-scale study identifying significant cranial shape differences between four genetically distinct giraffe species. The findings suggest that these species exhibit unique developmental and morphological characteristics, which have implications for conservation efforts.

Taxonomic classification is critical for guiding good conservation strategies. Giraffes have long been categorized as one species with geographic variants, though advancements in research are reshaping this perspective.

In the study, “Heads Up—Four Giraffa Species Have Distinct Cranial Morphology,” published in PLOS ONE, researchers examined 515 skulls with 3D geometric morphometrics to analyze patterns of cranial variability. The dataset, the largest of its kind, included specimens from , wild populations, and taxidermy sources across Africa.

Apple is on the brink of becoming the first company in history to surpass a $4 trillion market valuation, Fortune reports.

Apple’s stock (AAPL) has nearly risen 40% in 2024. Before the markets opened on December 27, Apple’s market capitalization stood at $3.92 trillion, leaving the company just a modest surge in stock value away from the unprecedented milestone. The growth is said to have been fueled largely by optimism surrounding Apple Intelligence and the continued strength of its iPhone upgrade cycles.

Researchers have successfully stabilized ferrocene molecules on a flat substrate for the first time, enabling the creation of an electronically controllable sliding molecular machine.

Artificial molecular machines, composed of only a few molecules, hold transformative potential across diverse fields, including catalysis, molecular electronics, medicine, and quantum materials. These nanoscale devices function by converting external stimuli, such as electrical signals, into controlled mechanical motion at the molecular level.

Ferrocene—a unique drum-shaped molecule featuring an iron (Fe) atom sandwiched between two five-membered carbon rings—is a standout candidate for molecular machinery. Its discovery, which earned the Nobel Prize in Chemistry in 1973, has positioned it as a foundational molecule in this area of study.