If you're having trouble viewing this email, you may see it online.
|When static contact angle is not enough|
|Researchers in Finland report that
surfaces in the real world cannot be characterized properly with a
single static contact angle measurement.1 This is
something we've known for many years here at ramé-hart. We've
offered an Automated Dispensing System for the past 20 years and for
over 30 years we've offered a tilting base. Both of these
accessories are useful for capturing the advancing and receding
Professor Robin Ras at Aalto University suggests that in evaluating the properties of new surfaces, it's important that a higher level of precision is used that extends beyond the simple static contact angle measurement. By capturing the maximum and minimum allowable contact angles and roll-off angle, one can better understand how liquids will interact with the surface in real world conditions. "It is crucial that we are able to conduct research based on shared and reliable standards," says Professor Robin Ras. The suggestion is that we move from reporting static contact angle to reporting advancing and receding contact angle. Many of our customers are steps ahead in an effort to move toward this practice.
To that end, ramé-hart offers three
different models (Models
and 790) which include
both the Automated Dispensing System as well as the Automated
Dispensing System. These highly automated instruments can all
measure advancing and receding contact angles using either of the
two most widely used methods - the add/remove volume method (with
the Automated Dispensing System)2 or the tilting plate
method (using the Automated Tilting Base).3 All of our
other models support the Automated Dispensing System as a option and
most support either our Manual or Automated Tilting Base.
|What's new at ramé-hart|
It's been a busy Fall so far here at
ramé-hart instrument co. In September, we released our new DROPimage
Pro Software. This has been a huge success to date and our customers
have expressed appreciation for adding so many new features (like
the Surface Tension Tool) and functionality - without any increase
in price.1 We launched our new Model 210 which ships with
DROPimage Pro (and replaces Model 200) and this has also been
Last month in October, we released our new Model 90, built from the ground up to be the most cost-effective contact angle goniometer currently on the market.2 The Pro Edition of Model 90 ships with our new DROPimage Pro software which includes contact angle, surface energy, and surface tension tools. The Model 90 Base Edition ships with our DROPimage CA software.
To be clear, DROPimage Pro does not replace our top-of-the-line DROPimage Advanced software. However, we've added a number of new features to the new v3 of Advanced, also recently released, including the Surface Tension Tool. DROPimage Advanced includes a methods-based experiment design tool and can perform advanced measurements such as surface dilatational elasticity and viscosity3 and is optimized for time-dependant studies. In short, no matter what your requirements are, we have an edition of DROPimage that is best for you: DROPimage CA measures contact angle and is included with our Base Edition of Model 90; DROPimage Pro (which replaces DROPimage Standard) is for general surface analysis and is optimized for contact angle, surface energy, surface tension, and interfacial tension; and DROPimage Advanced offers support for every available ramé-hart accessories and includes additional tools for advanced studies and dynamic analysis with powerful reporting, logging and graphing tools.
The International Conference on Nature
Inspired Surface Engineering (NISE), a multidisciplinary conference,
will be held on June 12-14, 2019. The conference will be hosted at
the Stevens Institute of Technology here in Northern New Jersey,
USA. NISE chair is Dr. Chang-Hwan Choi, Professor at the Department
of Mechanical Engineering of Stevens Institute of Technology. For
more information on this conference, please visit