Fast-scan cyclic voltammetry (FSCV) is an analytical tool used to probe neurochemical processes in real-time. A major drawback for specialized applications of FSCV is that instrumentation must be constructed or modified in-house by those with expertise in electronics....

Our understanding of the world around us has been greatly enhanced by our ability to detect and quantify analytes in the environment and in biology. It is highly beneficial to perform analysis at the site of interest, as many situations do not afford the luxury of time...

Metal speciation analysis has wide applicability and reveals how and when metals are available to engage in chemical processes. Real systems can be physically hard to reach, chemically dynamic, and sample collection and pretreatment fundamentally alter speciation. Ther...

There is great interest in rapidly monitoring metals of biological and environmental interest. Electrochemistry is traditionally a powerful tool for metal analysis but can be limited by its scope and low temporal resolution. The scope is limited by the potential window...

July 20, 2018

Greetings, my name is Navid Tavakoli and welcome to my blog post. My goal in crafting this post is not only to entertain you, but also to inform you. Hopefully this post will enlighten you about my experiences as part of the Hashemi Lab from high school to undergrad. T...

The medial prefrontal cortex (mPFC) is an important brain region, that controls a variety of behavioral and functional outputs. As an important step in characterizing mPFC functionality, in this paper we focus on chemically defining serotonin transmission in this area....

June 25, 2018

When I think about how fast this year has gone by, I am absolutely blown away. Time flies when your life is constantly falling apart, but, in all honesty, it flies when you’re laughing, having a blast, and doing what you want to do. I am the newest member of the Hashem...

June 1, 2018

The first thing you see is the floor of an autumnal forest, in which the leaves are switching out their summer wardrobe for various shades of orange and brown. Mushrooms are sprouting like California redwood and...sploosh! A giant moose is towering over you like an AT-...

Histamine (HA), a small molecule that is synthesized from the amino acid histidine, plays an important role in the immune system where it is associated with allergies, inflammation, and T-cell regulation. In the brain, histamine is stored in mast cells and other non-ne...

The mechanisms that control extracellular serotonin levels in vivo are not well-defined. This shortcoming makes it very challenging to diagnose and treat the many psychiatric disorders in which serotonin is implicated. Fast-scan cyclic voltammetry (FSCV) can measure ra...

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