Chromatography

Researchers understand heat transfer on the scales of individual molecules and in solids, but there is still much to learn about the physics of heat transfer in just a few molecules that will be used in nanometer-scale electronics. Zhaohui Wang and coauthors used a laser pulse to heat a gold substrate onto which a self-assembled monolayer of long-chain hydrocarbon molecules had been formed.

Scientists from Georgian Institute of Technology created a prototype nanogenerator that can generate electricity inside a human body. Tiny little devices traveling in our bloodstream while performing complete blood analysis and monitoring our well-being is the future of implantable biosensors. However, these nanorobots will need to be self-powered and there are two ways for achieving […]

It is interesting to note that 20 years later there is still no clear definition of nano-LC. Due to a relatively large size of the columns used in nano-HPLC (10-140 μm), the method does not fall within the realm of the conventional definition of nanotechnology – “the control of matter on a scale smaller than […]

Thanks to one of the readers of this blog – Farooq, I now have the full text of an excellent, 21-page review by the researches from Rome and Spain entitled “Recent applications in nanoliquid chromatography” (DOI 10.1002/jssc.200700061). Two months ago, I did a small article about nano liquid chromatography to answer a question posted on […]

A review was published yesterday in “Journal of Separation Science” by a group of Italian researchers. So far all I have is abstract: Since its first introduction by Karlsson and Novotny in 1988 nano-LC has emerged as a complementary and/or competitive separation method to conventional HPLC, offering several advantages such as higher efficiency, ability to […]

A breakthrough patent awarded to a New Jersey Institute of Technology (NJIT) researcher will enable manufacturers to create a device to detect miniscule amounts of airborne pollutants. Using computer chip technology, Somenath Mitra, PhD, professor and chair of NJIT’s Department of Chemistry and Environmental Sciences, has developed and patented what could eventually become a simple […]

Scientists of the University of Twente (The Netherlands) succeed in speeding up the fluid flow in a micro channel using tiny and rapidly imploding gas bubbles that also provide a new way of mixing fluids within a lab-on-a-chip, without the need of complicated external components. The scientists led by Dr. Claus-Dieter Ohl of the MESA+ […]

The large-scale studies of structure and function of proteins (proteomics) are performed using a variety of analytical techniques from two-dimensional gel electrophoresis, immunoaffinity chromatography to tandem and MALDI-TOF mass spectrometry. The words “large-scale” in proteomics definition refers to the fact that the number of proteins that need to be evaluated is enormous. For example, the […]

Yesterday “Nano Letters” released an article – “Photosensitization of ZnO Nanowires with CdSe Quantum Dots for Photovoltaic Devices” by Eray S. Aydil and et al. (DOI: 10.1021/nl070430o). I could not read the entire article because I am not a subscriber and don’t want to spend $25, but judging by the abstract the research team’s quantum-dot-sensitized […]

The research group from Rensselaer Polytechnic Institute (NY) led by Ganapathiraman Ramanath was able to glue two materials together a one nanometer-high layer of polymer chains. This thin but very strong nanoglue could become a useful adhesive in computer chips and other materials devices where thicker layers wouldn’t fit. One other unique property of the […]