Sunesen M, Jacobsen RB. Study of TRP Channels by Automated Patch Clamp Systems. In: Islam MS, editor. Transient Receptor Potential Channels [Internet]. Dordrecht: Springer Netherlands; 2011. p. 107–23.
Jensen 2008. TRPM8 tested on QPatch. Sophion Application Report.
Optogenetics uses light to activate (depolarize) or inhibit (hyperpolarize) cells genetically engineered to express light-gated ion channels. In this way, control of a cell’s membrane potential can be controlled by light, allowing fast & precise control only in the cells expressing the light-gated ion channels. Channelrhodopsins (e.g. ChR2) are cation channels that when gated by light will depolarize the cell membrane; halorhodopsin (e.g. NpHR) is a chloride ion pump that can be used to hyperpolarize the cell membrane.
By combining these optogenetic actuators with cell-type specific gene promotors & using viral delivery (e.g. adenovirus), very specific neurons within a neural circuit can be targeted in vivo to define roles & mechanisms in behaviours in live, active animals.
Unsurprisingly this very powerful technique has many applications & would not be hyperbole to say it’s revolutionized neuroscience. Indeed, Nature made it their method of the year for 2010. Barring the Nobel Prize, which is sure to follow, all the main scientific prizes & plaudits have been awarded to Georg Nagel, Peter Hegemann, Ernst Bamberg & Karl Deisseroth, the scientists who invented & developed this technique.
The ability to control membrane voltage by both voltage-clamp & optogenetics on an automated patch clamp platform with the flexibility & potential this may afford researchers was not lost on Sophion. By 2018 we had developed a functional Qube with LED arrays to perform simultaneous voltage-clamp & optogenetic light control of membrane voltage. Using ‘Qube Opto’ we have now produced a book chapter, application reports & presentations.
For more info on how Qube Opto might be used in your research see the links below or contact us at firstname.lastname@example.org.
Li et al., 2021 Identification of poly(ADP-ribose)polymerase 1 and 2 (PARP1/2) as targets of andrographolide using an integrated chemical biology approach
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Ledneczki et al., 2021 HTS-based discovery and optimization of novel positive allosteric modulators of the α7 nicotinic acetylcholine receptor
Barilli et al., 2021 From High-Throughput Screening to Target Validation: Benzo[d]isothiazoles as Potent and Selective Agonists of Human Transient Receptor Potential Cation Channel Subfamily M Member 5 Possessing In Vivo Gastrointestinal Prokinetic Activity in Rodents
Lapointe et al., 2021 Discovery and Optimization of DNA Gyrase and Topoisomerase IV Inhibitors with Potent Activity against Fluoroquinolone-Resistant Gram-Positive Bacteria.
Ottosson et al., 2021 Synthetic resin acid derivatives selectively open the hKV7.2/7.3 channel and prevent epileptic seizures.
Kong et al., 2021 Design, Synthesis, and Biological Evaluation of Novel Pyrimido[4,5-b]indole Derivatives Against Gram-Negative Multidrug-Resistant Pathogens
Jiang et al., 2021 Pharmacological Inhibition of the Voltage-Gated Sodium Channel NaV1.7 Alleviates Chronic Visceral Pain in a Rodent Model of Irritable Bowel Syndrome
Zheng et al., 2021 Discovery of Methylene Thioacetal-Incorporated α-RgIA Analogues as Potent and Stable Antagonists of the Human α9α10 Nicotinic Acetylcholine Receptor for the Treatment of Neuropathic Pain