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1. The Silver Lining

   Keahey, K. (August 2020, IEEE internet computing)

   Clouds are shareable scientific instruments that create the potential for reproducibility by ensuring that all investigators have access to a common execution platform on which computational experiments can be repeated and compared. By virtue of the interface they present, they also lead to the creation of digital artifacts compatible with the cloud, such as images or orchestration templates, that go a long way—and sometimes all the way—to representing an experiment in a digital, repeatable form. In this article, I describe how we developed these natural advantages of clouds in the Chameleon testbed and argue that we should leverage them to create a digital research marketplace that would make repeating experiments as natural and viable part of research as sharing ideas via reading papers is today. 

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2. Emerging investigator series: characterization of silver and silver nanoparticle interactions with zinc finger peptides

   https://doi.org/10.1039/C9EN00065H  

   Park, Grace; Amaris, Zoe N.; Eiken, Madeline K.; Baumgartner, Karl V.; Johnston, Kathryn A.; Williams, Mari A.; Marckwordt, Jasmine G.; Millstone, Jill E.; Splan, Kathryn E.; Wheeler, Korin E. (January 2019, Environmental Science: Nano)

   In biological systems, chemical and physical transformations of engineered silver nanomaterials (AgENMs) are mediated, in part, by proteins and other biomolecules. Metalloprotein interactions with AgENMs are also central in understanding toxicity, antimicrobial, and resistance mechanisms. Despite their readily available thiolate and amine ligands, zinc finger (ZF) peptides have thus far escaped study in reaction with AgENMs and their Ag( i ) oxidative dissolution product. We report spectroscopic studies that characterize AgENM and Ag( i ) interactions with two ZF peptides that differ in sequence, but not in metal binding ligands: the ZF consensus peptide CP-CCHC and the C-terminal zinc finger domain of HIV-1 nucleocapsid protein p7 (NCp7_C). Both ZF peptides catalyze AgENM (10 and 40 nm, citrate coated) dissolution and agglomeration, two important AgENM transformations that impact bioreactivity. AgENMs and their oxidative dissolution product, Ag( i )(aq), mediate changes to ZF peptide structure and metalation as well. Spectroscopic titrations of Ag( i ) into apo-ZF peptides show an Ag( i )–thiolate charge transfer band, indicative of Ag( i )–ZF binding. Fluorescence studies of the Zn( ii )–NCp_7 complex indicate that the Ag( i ) also effectively competes with the Zn( ii ) to drive Zn( ii ) displacement from the ZFs. Upon interaction with AgENMs, Zn( ii ) bound ZF peptides show a secondary structural change in circular dichroism spectroscopy toward an apo-like structure. The results suggest that Ag( i ) and AgENMs may alter ZF protein function within the cell. 

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3. Tug-of-War between DNA Chelation and Silver Agglomeration in DNA–Silver Cluster Chromophores

   https://doi.org/10.1021/acs.jpcb.2c01054  

   Petty, Jeffrey T.; Lewis, David; Carnahan, Savannah; Kim, Dahye; Couch, Caroline (June 2022, The Journal of Physical Chemistry B)
4. Bubble-Printed Microscale Silver Thermistors

   https://doi.org/10.1021/acs.jpcc.4c00598  

   Swain, Anand; Kollipara, Pavana Siddhartha; Zheng, Yuebing (May 2024, The Journal of Physical Chemistry C)

   Microscale temperature sensing and control are essential in various applications. Thermistors are widely utilized for temperature sensing owing to their simple design and high sensitivity. The future of thermistors lies in miniaturization and integration in highly customizable and sustainable electronics. Moreover, the ever-reducing size of the transistors requires the thermistors to scale down proportionally, without any compromise to its functionality. However, fabricating microscale thermistors exhibiting high accuracy and repeatable measurements has been challenging for state-of-the-art device miniaturization. Here, we develop versatile printing of microscale thermistors from silver fluoride solution by exploiting laser-induced opto-thermal microbubbles. The microscale temperature gradients on the bubble surface create an enhanced concentration of silver ions around the bubble to enable high-resolution printing of submicrometer structures with low-concentration precursors and low wastage. We demonstrate the bubble printing of thermistor arrays with both positive and negative thermal coefficients by exploiting the size effect on the electrical conductivity. We further investigate the sensing performance and long-term stability of the printed thermistors and conclude that the bubble-printed thermistors exhibit high-resolution sensing capabilities with long-term stability, promising enhanced performance in medical and semiconductor applications. 

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5. Dinuclear Silver Complexes in Catalysis

   https://doi.org/10.1002/anie.202106937  

   Elkoush, Tasneem; Reich, Natasha D.; Campbell, Michael G. (July 2021, Angewandte Chemie International Edition)

   Abstract Over the past two decades, there has been a substantial increase in the number of synthetically useful transformations catalyzed by silver. Across the range of silver‐catalyzed reactions that have been reported, dinuclear species often emerge as a common feature, either as the (pre‐)catalysts themselves or as intermediates during catalysis. This Minireview explores the role of dinuclear silver complexes in homogeneous catalysis, which we hope will aid in the development of improved design principles for silver catalysts. 

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