ברצוננו להודות לינוס ד סאן Jeenah יונג, אשר מקורו השימוש במחשב מעוצב, 3-D כוננים מודפסים במעבדה שלנו להקלטה מעכברים. בנוסף, ברצוננו להודות לכל חברי בעבר ובהווה וילסון מעבדה על תרומתם כונן מיקרו והטכנולוגיה tetrode הפיתוח במעבדה.

<ol>
	<li>Yamamoto, J., Wilson, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Large-scale+chronically+implantable+precision+motorized+microdrive+array+for+freely+behaving+animals.">Large-scale chronically implantable precision motorized microdrive array for freely behaving animals.</a> J. Neurophysiol. 100 (4), 2430-2440 (2008).</li></ol>

פרוטוקול זה מתאר את המאפיינים הכלליים של תהליך מיקרו כונן את הבניין. זה כבר שונה בהצלחה לייצר כונן arrays עם מטרות הקלטה מרובות או מערכים קטנים יותר עבור הקלטות בעכברים. בנוסף להקלטה של ​​ההיפוקמפוס, חוקרים רבים להשתמש כוננים אלה למקד מבנים קורטיקליים ותת קורטיקליים. השימוש בברגים יותר עשויות להידרש על מנת להקליט מבנים מוחיים עמוקים יותר. עם שינוי נרחב לבסס את הכונן, הכוננים ממונע שלי לשמש במקום אלה באופן ידני שהפך, מה שמאפשר דיוק, התאמה tetrode מרחוק (ימאמוטו ווילסון, 2008). אישית נייח צינורית הסדרים מדריך שימשו במקום צינורית הראשי מעגלי להשיג שליטה מרחבית על חלוקת tetrodes בקליפת ו בהיפוקמפוס.

<table>
<tbody>
	<tr>
<td>3D-printed plastic parts</td>
<td>Material</td>
<td>American Precision Prototyping (www.approto.com)</td>
<td>&nbsp;</td>
<td>Parts are printed by stereolithography (SLA) using DSM 14120 'ABS-like', DSM 11120 'Watershed' or Accura 55 resins. Request high resolution, no sandblasting.</td>
</tr>
<tr>
<td>stainless steel tubing</td>
<td>Material</td>
<td>Small Parts (www.smallparts.com)</td>
<td>&nbsp;</td>
<td>Cut to custom length and deburred. Sizes: 13 Ga (1pc @ 10 mm), 15 Ga (1pc @ 50 mm), 20 Ga thin wall (21pcs @ 5 mm), 23 Ga (21pcs @ 14 mm) </td>
</tr>
<tr>
<td>Dental cement powder</td>
<td>Material</td>
<td>A-M Systems (www.a-msystems.com)</td>
<td>525000</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Dental cement solvent</td>
<td>Material</td>
<td>A-M Systems</td>
<td>526000</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Electrode interface board</td>
<td>Material</td>
<td>Neuralynx (www.neuralynx.com)</td>
<td>EIB-81</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>micro-drive screws</td>
<td>Material</td>
<td>Advanced Machining and Tooling (www.amtmfg.com)</td>
<td>&nbsp;</td>
<td>Custom made screws with M1.2x0.25 threads (1.2mm major diameter; 0.25 mm thread pitch) </td>
</tr>
<tr>
<td>'Tap-Ease' tapping lubricant </td>
<td>Tool</td>
<td>AGS Company</td>
<td>TA-2</td>
<td>Available from MSC Industrial Supply (www.mscdirect.com)</td>
</tr>
<tr>
<td>Polyimide tubing </td>
<td>Material</td>
<td>IWG High Performance Conductors (www.iwghpc.com)</td>
<td>&nbsp;</td>
<td>Sizes:
30 Ga (outer diam: 0.0071", inner diam: 0.0116") 
5 mil (nominal outer diam: 0.0055", wall: 0.0010") </td>
</tr>
<tr>
<td>Cordless drill/driver </td>
<td>Tool</td>
<td>DeWalt (www.dewalt.com)</td>
<td>DC750KA </td>
<td>Any drill/driver with low-speed setting will do.</td>
</tr>
<tr>
<td>Variable-Speed Rotary Tool Kit with Flex-Shaft </td>
<td>Tool</td>
<td>Dremel (www.dremel.com)</td>
<td>3956-02</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Razor blades </td>
<td>Tool</td>
<td>VWR (www.vwr.com)</td>
<td>55411-050</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Watch glass </td>
<td>Tool</td>
<td>VWR</td>
<td>66112-107</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Tap for custom screws</td>
<td>Tool</td>
<td>Balax</td>
<td>01302</td>
<td>M1.2x0.25 Thredfloer thread-forming tap. Available from MSC Industrial Supply.</td>
</tr>
<tr>
<td>Taps</td>
<td>Tool</td>
<td>Small Parts</td>
<td>HSBT-0172, HSBT-0080 </td>
<td>1-72, 0-80 bottoming taps</td>
</tr>
<tr>
<td>Pin vise</td>
<td>Tool</td>
<td>Vargus</td>
<td>3SHC1--I </td>
<td>To hold taps. Available from MSC Industrial Supply</td>
</tr>
<tr>
<td>Drill bits</td>
<td>Tool</td>
<td>Small Parts</td>
<td>&nbsp;</td>
<td>Sizes: 65, 61, 1.55mm</td>
</tr>
<tr>
<td>Benchtop vise</td>
<td>Tool</td>
<td>Panavise</td>
<td>301</td>
<td>Available from DigiKey (www.digikey.com).</td>
</tr>
<tr>
<td>No.2 Dumont forceps</td>
<td>Tool</td>
<td>Stoelting (www.stoeltingco.com)</td>
<td>52100-27</td>
<td>Used for inserting 20 Ga thin wall sleeves.</td>
</tr>
<tr>
<td>5-minute epoxy</td>
<td>Tool</td>
<td>Allied Electronics (www.alliedelec.com)</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Accu-Tek Carbofib Tip Tweezers</td>
<td>Tool</td>
<td>Aven (www.aveninc.com)</td>
<td>18768 (Pattern 304)</td>
<td>Used for handling polyimide tubing.</td>
</tr>
<tr>
<td>Micro Dissecting Scissors</td>
<td>Tool</td>
<td>Biomedical Research Instruments (www.biomedinstr.com)</td>
<td>25-1000</td>
<td>Used for cutting polyimide carrier tubes</td>
</tr>
<tr>
<td>Xcelite 378M Pliers</td>
<td>Tool</td>
<td>Newark</td>
<td>96F8903</td>
<td>Used for handling stainless steel tubing and for construction of custom screwdriver.</td>
</tr>
<tr>
<td>mini pin vise</td>
<td>Tool</td>
<td>MSC Industrial Supply (www.mscdirect.com)</td>
<td>00920314 </td>
<td>Used as a handle for custom made screwdriver.</td>
</tr>		
</tbody>
</table>

micro-drive array for chronic in vivo recording: drive fabrication

הקלטה כרונית של אוכלוסיות גדולות של נוירונים היא טכניקה ערך עבור לומד את הפונקציה של מעגלים עצביים אצל חולדות מתנהג ער. מכשירי הקלטה קל נושא מערך צפיפות גבוהה של tetrodes לאפשר ניטור סימולטני של פעילות של עשרות עד מאות נוירונים בודדים. כאן אנו מתארים פרוטוקול עבור ייצור של מערך כונן מיקרו עם 21 עצמאי מטלטלין מיקרו כוננים. מכשיר זה שימש בהצלחה להקליט נוירונים בהיפוקמפוס ואת קליפת המוח במעבדה שלנו. אנחנו מראים איך להכין אישית מעוצבת, 3-D בסיס פלסטיק מודפס כי תקיים מיקרו כוננים. אנו מדגימים כיצד לבנות את הפרט מיקרו כוננים כיצד להרכיב את מערך שלם כונן מיקרו. הכנה נוספת של מערך הכונן להשתלה כירורגית, כגון ייצור של tetrodes, הטעינה של tetrodes לתוך מערך את הכונן ציפוי זהב, מכוסה במאמר וידאו הבאים.

Watch this Scientific Journal Video about Micro-drive Array for Chronic in vivo Recording: Drive Fabrication at JoVE.com

Micro-drive Array for Chronic in vivo Recording: Drive Fabrication

בפרוטוקול זה אנו מדגימים כיצד לפברק מערך כונן מיקרו להקלטות אלקטרו כרונית בחולדות.

Micro-Drive Array עבור כרונית In vivo</emהקלטה>: כונן ייצור

Chronic recording of large populations of neurons is a valuable technique for studying the function of neuronal circuits in awake behaving rats. ...

micro-drive-array-for-chronic-in-vivo-recording-drive-fabrication

Nanyang Technological University

Research

JoVE Journal

Biology

Micro-drive Array for Chronic in vivo Recording: Drive Fabrication

25.2K Views.  MIT - Massachusetts Institute of Technology. בפרוטוקול זה אנו מדגימים כיצד לפברק מערך כונן מיקרו להקלטות אלקטרו כרונית בחולדות.

Video: Micro-drive Array for Chronic in vivo Recording: Drive Fabrication

Population Replacement Strategies for Controlling Vector Populations and the Use of Wolbachia pipientis for Genetic Drive

In this video, Jason Rasgon discusses population replacement strategies to control vector-borne diseases such as malaria and dengue. "Population replacement" is the replacement of wild vector populations (that are competent to transmit pathogens) with those that are not competent to transmit pathogens. There are several theoretical strategies to accomplish this. One is to exploit the maternally-inherited symbiotic bacteria Wolbachia pipientis. Wolbachia is a widespread reproductive parasite that spreads in a selfish manner at the extent of its host's fitness. Jason Rasgon discusses, in detail, the basic biology of this bacterial symbiont and various ways to use it for control of vector-borne diseases.

In this interview, Jason Rasgon explains the concept of genetic drive and the characteristics of an effective gene drive system. The use of the endosymbiotic bacterium, Wolbachia pipientis, as a means to spread genes through mosquito populations, is hypothesized.

החלפת אוכלוסייה אסטרטגיות אוכלוסיות וקטור שליטה ושימוש Wolbachia pipientis עבור כונן גנטי

In this video, Jason Rasgon discusses population replacement strategies to control vector-borne diseases such as malaria and dengue. "Population ...

Application of Light-cured Dental Adhesive Resin for Mounting Electrodes or Microdialysis Probes in Chronic Experiments

In chronic recording experiments, self-curing dental acrylic resins have been used as a mounting base of electrodes or microdialysis-probes. Since these acrylics do not bond to the bone, screws have been used as anchors. However, in small experimental animals like finches or mouse, their craniums are very fragile and can not successfully hold the anchors. In this report, we propose a new application of light-curing dental resins for mounting base of electrodes or microdialysis probes in chronic experiments. This material allows direct bonding to the cranium. Therefore, anchor screws are not required and surgical field can be reduced considerably. Past experiences show that the bonding effect maintains more than 2 months. Conventional resin's window of time when the materials are pliable and workable is a few minutes. However, the window of working time for these dental adhesives is significantly wider and adjustable.

In this report, we propose a new application of light-curing dental resins for mounting base of electrodes or microdialysis probes in chronic experiments. This material allows direct bonding to the cranium.

יישום של שרף אור נרפא, דבק שיניים אלקטרודות הרכבה או בדיקות Microdialysis בניסויים כרונית

In chronic recording experiments, self-curing dental acrylic resins have been used as a mounting base of electrodes or microdialysis-probes. Since these ...

Immunohistochemistry on Paraffin Sections of Mouse Epidermis Using Fluorescent Antibodies

In the epidermis, immunohistochemistry is an efficient means of localizing specific proteins to their relative expression compartment; namely the basal, suprabasal, and stratum corneum layers. The precise localization within the epidermis of a particular protein lends clues toward its functional role within the epidermis. In this chapter, we describe a reliable method for immunolocalization within the epidermis modified for both frozen and paraffin sections that we use very routinely in our laboratory. Paraffin sections generally provide much better morphology, hence, superior results and photographs; however, not all antibodies will work with the harsh fixation and treatment involved in their processing. Therefore, the protocol for frozen sectioning is also included. Within paraffin sectioning, two fixation protocols are described (Bouin's and paraformaldehyde); the choice of fixative will be directly related to the antibody specifications and may require another fixing method.

We describe a reliable method for immunolocalization within the epidermis modified for both frozen and paraffin sections that we use very routinely in our laboratory.

אימונוהיסטוכימיה על סעיפים פרפין של האפידרמיס עכבר באמצעות נוגדנים פלורסנט

In the epidermis, immunohistochemistry is an efficient means of localizing specific proteins to their relative expression compartment; namely the basal, ...

A Craniotomy Surgery Procedure for Chronic Brain Imaging

Imaging techniques are becoming increasingly important in the study brain function. Among them, two-photon laser scanning microscopy has emerged as an extremely useful method, because it allows the study of the live intact brain. With appropriate preparations, this technique allows the observation of the same cortical area chronically, from minutes to months. In this video, we show a preparation for chronic in vivo imaging of the brain using two-photon microscopy. This technique was initially pioneered by Dr. Karel Svoboda, who is now a Howard Hughes Medical Institute Investigator at Janelia Farm. Preparations like the one shown here can be used for imaging of neocortical structure (e.g., dendritic and axonal dynamics),  to record neuronal activity using calcium-sensitive dyes, to image cortical blood flow dynamics, or for intrinsic optical imaging studies. Deep imaging of the neocortex is possible with optimal cranial window surgeries. Operating under the most sterile conditions possible to avoid infections, together with using extreme care to do not damage the dura mater during the surgery, will result in successful and long-lasting glass-covered cranial windows.


This video and protocol demonstrate how to implant a glass-covered cranial window in rodents. These preparations can be used for chronic in vivo two-photon imaging of the neocortex over time scales of months. It may also be used for other types of imaging, including optical intrinsic signal imaging.

כירורגיה Craniotomy נוהל הדמיה מוחית כרונית

Imaging techniques are becoming increasingly important in the study brain function. Among them, two-photon laser scanning microscopy has emerged as an ...

Micro-drive Array for Chronic in vivo Recording: Tetrode Assembly

The tetrode, a bundle of four electrodes, has proven to be a valuable tool for the simultaneous recording of multiple neurons in-vivo.  The differential amplitude of action potential signatures over the channels of a tetrode allows for the isolation of single-unit activity from multi-unit signals.  The ability to precisely control the stereotaxic location and depth of the tetrode is critical for studying coordinated neural activity across brain regions.  In combination with a micro-drive array, it is possible to achieve precise placement and stable control of many tetrodes over the course of days to weeks.  In this protocol, we demonstrate how to fabricate and condition tetrodes using basic tools and materials, install the tetrodes into a multi-drive tetrode array for chronic in-vivo recording in the rat, make ground wire connections to the micro-drive array, and attach a protective cone onto the micro-drive array in order to protect the tetrodes from physical contact with the environment.



Micro-drive Array for Chronic in vivo Recording: Tetrode Assembly

In this protocol we demonstrate how to fabricate and condition tetrodes for use with a micro-drive array, which was designed for chronic electrophysiological recordings in rats. In addition, we illustrate the final stages of micro-drive array construction, which includes installing ground wires and a protective cone.

Micro-Drive Array עבור כרונית In vivo</emהקלטה>: Tetrode האסיפה

The tetrode, a bundle of four electrodes, has proven to be a valuable tool for the simultaneous recording of multiple neurons in-vivo.  The differential ...

Electrophysiological Recording in the Drosophila Embryo

Drosophila is a premier genetic model for the study of both embryonic development and functional neuroscience. Traditionally, these fields are quite isolated from each other, with largely independent histories and scientific communities. However, the interface between these usually disparate fields is the developmental programs underlying acquisition of functional electrical signaling properties and differentiation of functional chemical synapses during the final phases of neural circuit formation. This interface is a critically important area for investigation. In Drosophila, these phases of functional development occur during a period of &lt;8 hours (at 25&deg;C) during the last third of embryogenesis. This late developmental period was long considered intractable to investigation owing to the deposition of a tough, impermeable epidermal cuticle. A breakthrough advance was the application of water-polymerizing surgical glue that can be locally applied to the cuticle to enable controlled dissection of late-stage embryos. With a dorsal longitudinal incision, the embryo can be laid flat, exposing the ventral nerve cord and body wall musculature to experimental investigation. Whole-cell patch-clamp techniques can then be employed to record from individually-identifiable neurons and somatic muscles. These recording configurations have been used to track the appearance and maturation of ionic currents and action potential propagation in both neurons and muscles. Genetic mutants affecting these electrical properties have been characterized to reveal the molecular composition of ion channels and associated signaling complexes, and to begin exploration of the molecular mechanisms of functional differentiation. A particular focus has been the assembly of synaptic connections, both in the central nervous system and periphery. The glutamatergic neuromuscular junction (NMJ) is most accessible to a combination of optical imaging and electrophysiological recording. A glass suction electrode is used to stimulate the peripheral nerve, with excitatory junction current (EJC) recordings made in the voltage-clamped muscle. This recording configuration has been used to chart the functional differentiation of the synapse, and track the appearance and maturation of presynaptic glutamate release properties. In addition, postsynaptic properties can be assayed independently via iontophoretic or pressure application of glutamate directly to the muscle surface, to measure the appearance and maturation of the glutamate receptor fields. Thus, both pre- and postsynaptic elements can be monitored separately or in combination during embryonic synaptogenesis. This system has been heavily used to isolate and characterize genetic mutants that impair embryonic synapse formation, and thus reveal the molecular mechanisms governing the specification and differentiation of synapse connections and functional synaptic signaling properties.

Electrophysiological Recording in the Drosophila Embryo

Electrophysiological recordings from Drosophila embryos allow analyses of developing muscle and neuron electrical properties, as well as characterization of functional synaptogenesis at the glutamatergic neuromuscular junction and central cholinergic and GABAergic synapses.

הקלטה של ​​אלקטרו תסיסנית עובריים

Drosophila is a premier genetic model for the study of both embryonic development and functional neuroscience. Traditionally, these fields are quite ...

In vivo-like Organotypic Murine Retinal Wholemount Culture

Targeted ablations of genes and analysis of animal models is the classical strategy for enrolling specific retinal gene function. However, transgenic, retina-specific or conditional knockout mouse models often display early lethality or suffer from severe malformations, preventing an analysis beyond embryonic or early postnatal stages.
Primary cell culture is an alternative to investigate the effects of exogenously applied recombinant factors, overexpression of genes or siRNA-mediated gene knockdown in a controlled environment. Dissociated cell culture has the advantage that the endogenous signals reaching the target cells are reduced, thereby facilitating the identification of exogenously triggered effects after pharmacological manipulation. However, important cell-cell interactions are initially destroyed by enzymatic digestion or mechanical dissociation, even if re-aggregated retinospheroid cultures1 are used.
By contrast, organotypic retinal wholemount cultures provide a system close to the physiological in vivo situation with neuronal interactions and connections still preserved2-5.
In this video article we provide a step by step demonstration of (1) the establishment of in vivo-like organotypic retinal wholemount cultures including dissection peculiarities of embryonic, postnatal and adult murine eyes and (2) a dissociation and cytospin procedure for analysis of neuronal apoptosis and retinal cell proliferation in organotypic wholemounts, e.g. after culture in the presence of exogenously applied recombinant factors.

In vivo-like Organotypic Murine Retinal Wholemount Culture

This video article demonstrates the establishment of organotypic retinal wholemount cultures and a cytospin procedure for analysis of exogenously induced effects. Organotypic retinal wholemount cultures mimic the in vivo situation and significantly facilitate the accessibility of murine retinas for experimental manipulations while circumventing the disadvantages of classical murine animal models.

בשנת vivo, כמו תרבות Wholemount Murine Organotypic רשתית

Targeted ablations of genes and analysis of animal models is the classical strategy for enrolling specific retinal gene function. However, transgenic, ...

One-channel Cell-attached Patch-clamp Recording

Ion channel proteins are universal devices for fast communication across biological membranes. The temporal signature of the ionic flux they generate depends on properties intrinsic to each channel protein as well as the mechanism by which it is generated and controlled and represents an important area of current research. Information about the operational dynamics of ion channel proteins can be obtained by observing long stretches of current produced by a single molecule. Described here is a protocol for obtaining one-channel cell-attached patch-clamp current recordings for a ligand gated ion channel, the NMDA receptor, expressed heterologously in HEK293 cells or natively in cortical neurons. Also provided are instructions on how to adapt the method to other ion channels of interest by presenting the example of the mechano-sensitive channel PIEZO1. This method can provide data regarding the channel&#8217;s conductance properties and the temporal sequence of open-closed conformations that make up the channel&#8217;s activation mechanism, thus helping to understand their functions in health and disease.

Described here is a procedure for obtaining long stretches of current recording from one ion channel with the cell-attached patch-clamp technique. This method allows for observing, in real time, the pattern of open-close channel conformations that underlie the biological signal. These data inform about channel properties in undisturbed biological membranes.

הקלטת תיקון מהדק מצורף תא אחד ערוצים

Ion channel proteins are universal devices for fast communication across biological membranes. The temporal signature of the ionic flux they generate ...

Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants

Array CGH for the detection of genomic copy number variants has replaced G-banded karyotype analysis. This paper describes the technology and its application in a clinical diagnostic service laboratory. DNA extracted from a patient&#8217;s sample (blood, saliva or other tissue types) is labeled with a fluorochrome (either cyanine 5 or cyanine 3). A reference DNA sample is labeled with the opposite fluorochrome. There follows a cleanup step to remove unincorporated nucleotides before the labeled DNAs are mixed and resuspended in a hybridization buffer and applied to an array comprising ~60,000 oligonucleotide probes from loci across the genome, with high probe density in clinically important areas. Following hybridization, the arrays are washed, then scanned and the resulting images are analyzed to measure the red and green fluorescence for each probe. Software is used to assess the quality of each probe measurement, calculate the ratio of red to green fluorescence and detect potential copy number variants.

Array Comparative Genomic Hybridization Array CGH for Detection of Genomic Copy Number Variants

Array CGH for the detection of genomic copy number variants has replaced G-banded karyotype analysis. This paper describes the technology and its application in a diagnostic service laboratory.

מערך השוואתי הגנום הכלאה (Array CGH) לאיתור של הגנום גרסאות מספר עותק

Array CGH for the detection of genomic copy number variants has replaced G-banded karyotype analysis. This paper describes the technology and its ...

In Vivo Microinjection and Electroporation of Mouse Testis

This video and article contribution gives a comprehensive description of microinjection and electroporation of mouse testis in vivo. This particular transfection technique for testicular mouse cells allows the study of unique processes in spermatogenesis.
The following protocol focuses on transfection of testicular mouse cells with plasmid constructs. Specifically, we used the reporter vector pEGFP-C1, which expresses enhanced green fluorescent protein (eGFP) and also the pDsRed2-N1 vector expressing red fluorescent protein (DsRed2). Both encoded reporter genes were under the control of the human cytomegalovirus immediate-early promoter (CMV).
For performing gene transfer into mouse testes, the reporter plasmid constructs are injected into testes of living mice. To that end, the testis of an anaesthetized animal is exposed and the site of microinjection is prepared. Our preferred place of injection is the efferent duct, with the ultimately connected rete testis as the anatomical transport route of the spermatozoa between the testis and the epididymis. In this way, the filling of the seminiferous tubules after microinjection is excellently managed and controlled due to the use of stained DNA solutions. After observing a sufficient filling of the testis by its colored tubule structure, the organ is electroporated. This enables the transfer of the DNA solution into the testicular&#160;cells. Following 3 days of incubation, the testis is removed and investigated under the microscope for green or red&#160;fluorescence, illustrating transfection success.
Generally, this protocol can be employed for delivering DNA- or RNA- constructs into living mouse testis in order to (over)express or knock down genes, facilitating in vivo gene function analysis. Furthermore, it is suitable for studying reporter constructs or putative gene regulatory elements. Thus, the main advantages of the electroporation technique are fast performance in combination with low effort as well as the moderate technical equipment and skills required compared to alternative techniques.

In Vivo Microinjection and Electroporation of Mouse Testis

This article describes microinjection and electroporation of mouse testis in&#160;vivo as a&#160;transfection technique for testicular mouse cells to study unique processes of spermatogenesis. The presented protocol involves steps of glass capillary preparation, microinjection via the efferent duct, and transfection by electroporation.

בVivo Microinjection וElectroporation של אשך העכבר

This video and article contribution gives a comprehensive description of microinjection and electroporation of mouse testis in vivo. This particular ...

Micro-Drive Array עבור כרונית In vivo: כונן ייצור