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RheoSense Blog: In Viscosity News...

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RheoSense Blog

Latest Release & Upcoming Events

Posted by Joseph Chun

May 15, 2018 1:00:00 PM

In the upcoming weeks, we are proud to announce the release of our latest application note regarding concentration dependence in protein viscosity. In this app note, Dr. Stacey Elliott gathered viscosity data for Bovine Gamma Globulin (BgG) formulations over the full concentration range, including therapeutic levels ≥ 100 mg/mL, using the VROC®Initium. The solution buffer included sucrose which is a common additive to enhance stabilization during freeze-drying and storage. Relative viscosity versus concentration curves were fit with the Ross-Minton equation which is a frequently used analysis tool for protein formulations.

To view application note, click below!

DOWNLOAD APPLICATION NOTE

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Topics: Viscosity Measurements, Protein Solutions, bovine gamma globulin, shear rate sweep, Announcement, viscosity, Fun with Viscosity, VROC Technology, RheoSense News, Small Sample Viscometer, Viscometer, General Information, Rheometer, Proteins

Different Ways to Measure Viscosity

Posted by Joseph Chun

Mar 13, 2018 8:20:07 PM

Measuring viscosity dates back to as early as the 19th century. French physicist Jean Poiseuille discovered the concept of measuring viscosity by formulating the "mathematical expression for the flow rate for the laminar flow of fluids in circular tubes." Later on, this formulation was discovered by a German hydraulic engineer Gotthilf Hagen, which came to be known as the Hagen-Poiseuille equation (Britannica). Early measurements of viscosity focused primarily on the flow of blood. Measurements were conducted using the hemodynamometer that incorporated narrow tubes & glass capillaries in effort to measure the pressures in the arteries of horses and dogs (Sutera). 

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Topics: viscosity, Viscosity Measurements, Rheometer, General Information, Viscometer, Small Sample Viscometer, VROC Technology, High throughput Viscometer, Automatic Viscometer, Biotechnology, m-VROC, FYI

In the Blink of an Eye - Viscosity of Eye Drops

Posted by Joseph Chun

Jan 23, 2018 10:32:36 AM

Wow, it's already more than halfway through January within the new year. Time really does fly, huh? We hope that 2018 has been good and already have been a learning experience so far.

Formulate your eye drops properly

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Topics: Application Focus, m-VROC, General Information, Proteins, Viscometer, Small Sample Viscometer

2016 BioProcessing Summit

Posted by Grace

Aug 9, 2016 2:56:45 PM

RheoSense is will be exhibiting at the 2016 BioProcessing Summit from August 15 to August 19. Visit us at Booth #101 to meet our specialists and see the newautomatic, high throughput viscometer, VROC® initium! 


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Topics: microVISC, m-VROC, General Information, Viscometer, Small Sample Viscometer, RheoSense, Inc., Conference/Event, Automatic Viscometer, VROC initium, High throughput Viscometer

2016 Pittcon Conference

Posted by Grace

Feb 9, 2016 10:34:29 AM

RheoSense is will be exhibiting at the 2016 Pittcon Conference from March 6th to March 10, 2016. Visit us at Booth #1522 to meet our specialists and see the new automatic, high throughput viscometer, VROC® initium! 

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Topics: microVISC, m-VROC, General Information, Viscometer, Small Sample Viscometer, RheoSense, Inc., Conference/Event, Automatic Viscometer, Plasma Viscosity, Blood Viscosity, VROC initium, High throughput Viscometer, Serum Viscosity

2016 Society for Laboratory Automation and Screenings (SLAS) Conference

Posted by Grace

Jan 12, 2016 1:01:44 AM

RheoSense is will be exhibiting at the 2016 Society for Laboratory Automation and Screening (SLAS) Conference from January 23rd to the January 27th. Visit us at Booth #601 to meet our specialists and see the new automatic, high throughput viscometer, VROC® initium! 

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Topics: microVISC, m-VROC, General Information, Viscometer, Small Sample Viscometer, RheoSense, Inc., Conference/Event, Automatic Viscometer, VROC initium, High throughput Viscometer

Announcing Winners of Happy Holidays! 2015

Posted by Grace

Jan 12, 2016 12:28:50 AM



We want to thank all of the applicants for our 2015 Holiday promotion! Now...without further adieu, we would like to announce the winners! 

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Topics: Promotion, Small Sample Viscometer, RheoSense, Inc., Conference/Event

VISCO❄HOLIDAY: Viscometer Gift

Posted by Grace

Dec 2, 2015 3:30:05 PM

 
 
As a sign of customer appreciation and for the end of 2015, RheoSense presents a viscometer give-away and other prizes for all those completing our end-of-year survey. The following prizes will be awarded:
 
  • One Grand Prize: A microVISC viscometer* + 50$ Amazon Gift Card

  • Five Second Prizes: 50$ Amazon Gift Cards

  • All participants providing a referral to a friend or college will receive a 10% discount* in all RheoSense products and services​
 
 
 
   
                  
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Topics: Promotion, microVISC, VROC Technology, Small Sample Viscometer, Announcement

Upcoming Webinar: VROC initium, High Throughput, Automatic Viscometer

Posted by Grace

Sep 22, 2015 1:14:53 PM

NEW PRODUCT RELEASE
Automatic Viscometer, 
VROC® initium

September 30, 2015 | 11:00 am (PST)

 
 
 
 
This webinar will introduce RheoSense's automatic, high throughput viscometer, VROC® initium.  Attendees will get the first sneak peek of the instrument and data.
Key Features Include:
  • 10 microliters
  • 40 Vial Rack/96 Well Plate
  • Unattended Measurements
Major Applications of VROC® initium Include: 
  • High Throughput Screening with Viscosity 
  • Protein Therapeutics — Stability & Injectability
  • Kinetics of Chemical Reaction and Degradation
  • Intrinsic Viscosity — Protein & Polymer Size
  • Solubility

 
 
        

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Topics: VROC Technology, General Information, Small Sample Viscometer, RheoSense, Inc., Conference/Event, Product Release, Announcement

September Seminar with RheoSense Viscometers - Hosted by Insung, Korea

Posted by Grace

Sep 1, 2015 6:50:00 PM

Insung Chromatech, one of the formal South Korean distributors for RheoSense viscometers will be hosting their fall seminar on September 23, 2015 at Sunchon National University. Focusing on applications with Xantham Gum and Hyaluronic Acid, the event will include a formal demonstration of microVISCm-VROC and e-VROC viscometers

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Topics: Small Sample Viscometer, RheoSense International Partners, RheoSense Partners, Conference/Event

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