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RheoSense Blog: In Viscosity News...

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RheoSense Blog

David Nieto

Recent Posts

Severe blood loss treated wIth Hyper-Viscosity

Posted by David Nieto

Aug 3, 2016 2:10:25 PM

Researchers from UC San Diego have come up with a radically different solution for severe blood loss treatment. In their study, fluids with much higher salt content than conventional saline are combined with viscosity enhancers with the purpose of thickening blood. 

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Topics: viscosity, Blood Viscosity

Viscosity vs. Concentration: L-Arginine Dilute Solutions in Water & PBS

Posted by David Nieto

Mar 15, 2016 4:09:04 PM

 The exact mechanism by which Arginine molecules affect protein molecules in solution is unclear. Nonetheless, its benefits increasing solubility and controlling viscosity have spread out its application in biopharma formulations, specially for high concentration antibody solutions. 

In our application note, we examine the effect of concentration on the viscosity of dilute solutions of L-Arginine in water and PBS. Additionally, we study the Intrinsic Viscosity of this solutions to better understand molecular size and solubility in dilution. 

Download L-Arginine  Application Note

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Topics: Viscosity Measurements, Applications, Biotechnology, Rheometer, m-VROC, Proteins, Viscometer, RheoSense, Inc., Automatic Viscometer, VROC initium, High throughput Viscometer

Viscosity of  Conductive Inks, Coatings, Paints, & Pastes

Posted by David Nieto

Mar 1, 2016 11:49:06 AM

Whether you work with printed electronics, touch displays, or any of the number of applications working with conductive inks, coatings, paints and pastes, viscosity is one of the key parameters in the development of your process. Over the last few months, RheoSense has released a number of applications related to conductive inks. Our instruments allow for accurate rheological charaterization of these samples between 4°C and 105°C. Check them out!

  Access our Ink Application Library!

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Topics: microVISC, Viscometer, viscosity, Conductive Inks, Inks Viscosity

TRUE Blood (Viscosity) and Vampires THIS FEBRUARY AT RHEOSENSE!

Posted by David Nieto

Feb 9, 2016 10:35:58 AM

Even in California, winter can be a bit of a traumatic season. With the sun going down at 5 P.M. we got a bit of a vampire complex and decided to make February our month dedicated to the viscosity of blood and its derivatives. To go with our mood, we also published an application note on the viscosity of plasma and serum. However, this seemed a bit like decaf coffee to us. If you know the RheoSense crew, we love our coffee! Hence, we wanted to look at the real thing!

Download Whole Blood  Application Note

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Topics: Plasma Viscosity, Blood Viscosity, Clinical Diagnosis, Serum Viscosity

BioPharma poster - SLAS 2016

Posted by David Nieto

Jan 26, 2016 11:01:00 AM

RheoSense will be presenting a poster next week at SLAS meeting in San Diego. Come by our booth (#601) or the poster session if you want to lear more about our instruments and related applications! 

Download Free Poster - SLAS 2016

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Topics: Conference/Event, Poster

Application Corner - Conductive Inks

Posted by David Nieto

Jan 19, 2016 11:44:27 AM


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Viscosity of conductive inks with m-VROC® and microVISC™:


Viscosity of conductive inks, paints and coatings is key to establish manufacturing processes for printed electronics and display systems. The complexity of printing and coating technologies has motivated a rapid growth of the conductive inks industry. To meet the market demands, efficient, highly accurate and fast characterization methods are required.
 
Conventional viscometers are often unable to fully characterize complex fluids (i.e. they are not able to measure viscosity as a function of shear rate or extensional properties). On the other hand, rheometers are limited to relatively low (<10,000 1/s) deformation rates. Our microfluidic-based VROC® (Viscometer/Rheometer On a Chip) technology overcomes these limitations.
 
RheoSense viscometers are able to fully characterize the flow curves (viscosity vs shear rate) of complex fluids for shear rates ranging from 0.5 to 1,400,000 1/s. Additionally, we offer measurements of extensional viscosity and temperature control from 4°C to 105°C. Accurate measurements of shear and extensional viscosity at the deformation rates and temperatures relevant for the fabrication processes are essential to understand the subtleties of the different printing and coating technologies.

VROC® powered instruments, provide a solution to the challenges of conventional technologies. The high accuracy and repeatability over a wide range of deformation rates make our systems Simply Precise™ at a fraction of the sample volume and testing time!
 
 
 
 
Target Keywords
Inks Viscosity
Non-Newtonian Inks
Shear Thinning Inks
Accurate Low Viscosity Measurements
 
 
 
 
Industries:
Inkjet Inks
Ceramic Inks
Water Based Inks
Biopolymer and Protein Inkjet
 
 
 
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Topics: microVISC, Viscosity Measurements, VROC Technology, Rheometer, m-VROC, viscosity

Viscosity & 3D PRINTING, TASTY 3D PRINTING!

Posted by David Nieto

Jan 5, 2016 12:01:23 PM

That's right! You can 3D-print food. This presents a new and very interesting perspective in cooking with opportunities to modify the structure of the goods we eat. Icing, syrups, honey, nutella, dough... there are few limitations and some challenges to this process. 


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Topics: Viscosity Measurements, Fun with Viscosity

What (Fluid Viscosity) Would You Like Us to Measure?

Posted by David Nieto

Dec 17, 2015 12:08:24 PM



Every event we go to, we get asked for the viscosity of bunch of different common fluids. What is the viscosity of honey? Have you measured motor oil? Was it used oil? What about paints and inks? In this last post of the year, right before the holiday break, we ask you: What would you like us to measure?

You can always check our application library to see what fluids we have already tested:

Please send us comments with your suggestions through this page or through any social media      (     ). We will select a few of those fluids and measure the viscosity!

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Topics: Promotion, RheoSense, Inc., Announcement, viscosity, Fun with Viscosity

Wine Paired with Good Science at GGPF November Meeting!

Posted by David Nieto

Nov 18, 2015 11:12:55 AM

A few weeks ago, RheoSense sponsored November’s meeting for the Golden Gate Polymer Forum: "Properties and Applications of Synthetic Adhesive Polymers Inspired by Mussels, Wine, Tea, Chocolate and Other Edibles” by Prof. Phillip Messersmith from U.C. Berkeley.

Professor Phillip Messersmith's research is focused on biologically inspired materials. To learn more about Professor Messersmith's work, please check out his website

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Topics: RheoSense, Inc., Conference/Event

Spiders Fight Humidity with Viscosity

Posted by David Nieto

Nov 5, 2015 12:49:33 PM

Looks like every spider will be shopping this holiday season for a viscometer to fine tune the viscosity of the glue droplets that cover spider webs and strands. Luckily RheoSense made the microVISC™, a portable and battery powered viscometer/rheometer. As Spidey (the little spider living in one of the corners of my backyard) puts it: “I needed a fast, portable and Simply Precise™ instrument. Rheosense had the perfect solution for me. Now my spider webs are stickier than ever!”

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Topics: microVISC

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