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2015 ALS Shutdown

The upcoming long-term operating schedule has been published and users will note that it includes an extended shutdown period (October 26, 2015-January 13, 2016) for the ALS. The lengthy shutdown is in part because it spans the Thanksgiving and Holiday shutdown periods, as well as being indicative of the amount of time required to implement major upgrades. The main project for this shutdown is the completion of the final phase of the Storage Ring Radio Frequency (SRRF) Upgrade. Read more »

Peptoid Nanosheets Offer a Diversity of Functionalities

Researchers at the ALS have recently observed peptoid nanosheets as they self-assemble at an oil–water interface. This development opens the door to designing peptoid nanosheets of increasing complexity and functionality for a broad range of applications, including improved chemical sensors and separators, and safer, more effective drug-delivery vehicles. Read more »PPT-icon-35 PDF-icon-35

Ligand Noninnocence in Coinage Metal Corroles: A Silver Knife-Edge

In contrast to noninnocent copper corroles and essentially innocent gold corroles, silver corroles appear to be poised on a knife-edge between the two electronic-structural descriptions. The summit trail of Mount Sir Alexander, a peak of the Canadian Rockies described by mountaineer Chris Goulet as a knife-edge that only a mouse can walk on, provides anRead More Read more »

A Milky Mystery: The Case of the Casein Micelles

We all know that milk contains important nutrients such as calcium and protein that help build bones and muscle. But how much do we really know about these ingredients at the molecular level? To learn more, scientists from New Zealand and Australia came to the ALS to x-ray some milk.
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Molecular Structure of Water at Gold Electrodes Revealed

ALS researchers have now made a first-ever observation of the molecular structure of liquid water at a gold surface under different charging conditions. This marks the first time that the scientific community has been able to achieve such high sensitivity in an in situ environment under working electrode conditions. Read more »PPT-icon-35 PDF-icon-35

Protein Instability and Lou Gehrig’s Disease

A new study uses small-angle x-ray scattering as well as several advanced biophysical techniques to link protein instability to the progression of a lethal degenerative disease: amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig’s disease. Read more »PPT-icon-35 PDF-icon-35

2015 General User Proposals: Timeline for March 4 Submissions

The User Office received 279 new General User Proposals (GUPs) and 421 Beam Time Requests (BTRs) for the 2015-2 running cycle. The User Office has processed all the proposals. Users submitting new proposals should have received an email inviting them to log in to ALSHub to review the proposal PDF that will be sent to reviewers. Read more »

Electronic Structure Changes in Supercapacitor Electrodes Observed In Operando

Profound bias- and time-dependent changes in the electronic structure of graphene-based supercapacitor electrodes are demonstrated under operating conditions via a combination of in operando x-ray spectroscopy and ab initio modeling by J.R.I. Lee and co-workers. The evolution in electronic structure reflects changes in the surface chemistry and morphology induced by polarization of the electrode-electrolyte interface and points to distinct pseudocapacitive and electric-double-layer capacitive channels for charge storage. Read more »