Subject: Request for novel insulators, heat tracing technologies
From: Philip Sorensen
Date: Sun, 15 Dec 1996 18:13:22 +0000
I am cross-posting this message to several materials-related newsgroups.
My company is a small technology search firm. We inititate alliances
between large companies that are seeking externally-developed
technology and smaller firms or universities that have it or can develop
it.
We have a client that is seeking novel advances/innovations or new
technologies in the general area of heat tracing (i.e. distributing heat
along industrial pipe lengths). Heat-tracing products are designed to
meet diverse temperature requirements in many industries -- oil and gas,
utilities, petrochemicals, pulp and paper, commercial construction, and
others. Heating cables protect a variety of structures, such as pipes
on oil platforms at sea, from freezing. They also maintain temperatures
necessary to keep many types of delicate fluids, such as liquid food
products, flowing smoothly.
We are interested in identifying advances in core or supporting
technologies in the field of heat tracing, including but not limited to:
* novel, low-cost insulators (e.g. aerogels, nanomaterials)
* pipe supports, i.e., specialty pipe supports to manage thermal
conductivity
* cladding
Our client would consider providing funding for product development,
R&D;, or purchasing or licensing technology.
We would appreciate hearing from anyone who may be interested in
exploring this further so that we might discuss next steps, provide
add'l information, or answer any questions you might have.
Thank you in advance for your consideration.
Philip Sorensen
--
Philip Sorensen
Advanced Technology Innovations, Inc.
2800 Shirlington Road, #704
Arlington, VA 22206
Ph: 703-379-5533 Fx: 703-379-5535
Email: psati@ix.netcom.com
Subject: new url: OPTICAL CHEMOSENSORS FOR ION AND MOLECULE RECOGNITION
From: Tobias Werner
Date: Mon, 16 Dec 1996 14:21:22 +0100
Check out the new url:
http://rchsg24.uni-regensburg.de/WWW/Wolfbeis/tw/twmain.html
OPTICAL CHEMOSENSORS FOR ION AND MOLECULE RECOGNITION
CURRENT RESEARCH TOPICS
The main goal of our group is to develop and apply advanced
spectrophotometric, especially fluorescence concepts and measurements
for ionic species in different media, basically biological samples like
serum and blood. The analytical ranges we are trying to cover are
described here.
We are active in the synthesis and immobilization of chromo- and
fluoro-ionophores, in designing covalent and non-covalent chromogenic
and complexing donor-acceptor compounds as well as preparation of
optical sensor membranes for analytes, especially alkali ions, alkaline
earth ions and halide ions. The new fluorescent probes we are targeting
for should be excitable by solid state light sources.
In view to a more rational development of new optical sensors
("optodes") a detailed knowledge of the processes occurring within the
membrane phase is required. In many cases, the same reversible chemical
reactions/bindings taking place in a polymeric phase can be used to
induce a selective response in ion-selective optodes. Time-dependent
concentration profiles of various components across the sensor membrane
are optically detected and the corresponding diffusion coefficients are
evaluated. Under well-defined assumptions, optical measurements on
polymeric films allow the determination of complex formation constants
in the membrane phase.
Optical sensors gained great interest in the last decade due to their
often simple technical device and easy handling. The most promising
technique seems to be fluorescent probes immobilized in polymeric
membranes. Therefore, there is a great need for suitable fluorescent
probes based on displaying large changes in their optical properties
during interaction with the analyte. Three mechanisms may be
distinguished.
Sensing principles we are using include
the photoinduced electron transfer (PET),
the energy transfer (ET) and
the intramolecular charge transfer (ICT).
If you have questions/comments on any topic,
please drop us a line!
T. Werner
