A new, single-step method of fabricating microcapsules, which have potential commercial applications as a substrate for surface-enhanced Raman spectroscopy (SERS), and in industries including medicine, agriculture and diagnostics, has been developed by researchers at the University of Cambridge, UK. Their have been published in Science titled “One-Step Fabrication of Supramolecular Microcapsules from Microfluidic Droplets”.
Archaeologists examining late period Mayan containers have identified nicotine traces from a codex-style flask, revealing the first physical evidence of tobacco use by ancient Mayans. The study published in Rapid Communications in Mass Spectrometry reveals the flask is marked with Mayan hieroglyphics reading, “y-otoot ’u-may” (“the home of its/his/her tobacco”), making it only the second case to confirm that the text on the exterior of a Mayan vessel corresponds to its ancient use.
The Federation of Analytical Chemistry and Spectroscopy Societies (FACSS) has announced the winners of the 2011 FACSS Innovations Awards. The FACSS Innovation Awards showcase the newest and most creative science debuted orally at a FACSS-organised conference. Shortlisted finalists competed in front of expert panels at the 2011 FACSS conference in Reno, NV, USA (2–7 October 2011). The panel commended the high quality of entries and selected four equal awardees.
Part of managing diabetes involves piercing a finger several times daily to monitor blood sugar levels. Attempts have been made for decades to find a suitable spectroscopic method to replace this invasive procedure for monitoring glucose with a painless one. A number of spectroscopic techniques, including near infrared (NIR), have shown promise, but now instrumental developments in Raman spectroscopy may offer a solution.
For the past 30 years, one of the most valuable and widely used techniques for studying electronic structures has been Angle-Resolved PhotoEmission Spectroscopy (ARPES). However, this technique primarily looks at surfaces. Now, for the first time, bulk electronic structures have been opened to comparable scrutiny through a new variation of this standard called Hard x-ray Angle-Resolved PhotoEmission Spectroscopy (HARPES).
Researchers have used mass spectrometry imaging to uncover exactly how a human egg captures an incoming sperm to begin the fertilisation process, in a new study published this week in Science. The research identifies the sugar molecule that makes the outer coat of the egg “sticky”, which is vital for enabling the sperm and egg to bind together. Researchers across the world have been trying to understand what performs this task for over 30 years.
Using two-dimensional spectroscopy, researchers in Berlin have shown that electrons in a semiconductor are best described as a cloud with a size of a few nanometres. The cloud size is determined by the interaction of the electron with vibrations in the crystal lattice.
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- Total reflection X-ray fluorescence technique for multi-elemental analysis of food
- Investigation of paper collages by near infrared imaging techniques
- Synchrotron infrared near-field spectroscopy in photothermal mode
- The CAL(AI)2DOSCOPE: a microspectrophotometer for accurate recording of correlated absorbance and fluorescence emission spectra
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