How many nanometers should catalyst nanoparticles be to optimize the course of the reaction? Researchers usually look for the answer through laborious, repetitive tests. At the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw, a qualitatively new technique was developed to improve the process of such optimization in microfluidic systems. The size of the catalyst nanoparticles can now be changed interactively, during a continuous flow through the catalyst bed.
The performance of metal-carrier catalysts often depends on the size of metal nanoparticles. Usually, their size is determined over many consecutive, laborious tests. The method inflexible—once reactions have started, nothing can be done with the catalyst. At the Institute of Physical Chemistry of the Polish Academy of Sciences (IPC PAS) in Warsaw, the group of Dr. Jacinto Sa developed a new technique to optimize chemical reactions during the continuous microfluidic flow through the catalyst bed, and thus literally “on the fly.” This was achieved through interactive control of the size of the catalyst nanoparticles. Due to its simplicity and efficiency, this innovative technique should soon be used in the research on the new catalysts for the pharmaceutical and perfumery industries, among others.
“Flow catalysis is becoming more and more popular because it leads to the intensification of processes important for the industry. Our technique is the next step in this direction: We reduce the time needed to determine the sizes of catalyst nanoparticles. That means we can more quickly optimize the chemical reactions and even interactively change their course. An important argument here is also the fact that the entire process is carried out within a small device, so we reduce costs of additional equipment,” says Dr. Sa.
Image Credit: IPC PAS, Grzegorz Krzyzewski, kolorado.com.pl
News This Week
Nature wades through the literature on the new coronavirus — and summarizes key papers as they appear: 1 June — Positive coronavirus test is no guarantee of infectiousness People with COVID-19 are unlikely to [...]
In April, blood clots emerged as one of the many mysterious symptoms attributed to Covid-19, a disease that had initially been thought to largely affect the lungs in the form of pneumonia. Quickly after came [...]
Scientists from the University of Maryland School of Medicine (UMSOM) developed an experimental diagnostic test for COVID-19 that can visually detect the presence of the virus in 10 minutes. It uses a simple assay [...]
Rheumatologists at the University of Alberta are flagging similarities between the deaths of some COVID-19 patients and those with rheumatic illnesses, and are testing proven rheumatic treatments to see whether they help against [...]
Next-gen nano technologies that can prevent infection and diagnose disease are set to transform the medical industry as this important UniSA research is awarded more than $2 million dollars under the National Health and [...]
In late December last year, Dr. Li Wenliang began warning officials about a novel coronavirus in Wuhan, China, but was silenced by the police before tragically succumbing to the disease two months later. Meanwhile, [...]
Almost 10 weeks into the pandemic, COVID-19 is continuing to surprise and baffle health experts. In fact, experts' picture of exactly how COVID-19 might play out in the body is now quite different to [...]
EPFL scientists have developed a new computational approach to create artificial proteins, which showed promising results in vivo as functional vaccines. This approach opens the possibility to engineer safer and more effective vaccines. Vaccines [...]
A group of tiny RNA that should attack the virus causing COVID-19 when it tries to infect the body are diminished with age and chronic health problems, a decrease that likely helps explain why [...]
Purple rashes, swollen legs, clogged catheters and sudden death — blood clots, large and small, are a frequent complication of COVID-19, and researchers are just beginning to untangle why. For weeks, reports have poured [...]
Coronavirus vaccine trials are underway around the world. China’s hoping it can be first for ‘redemption’
In a medical centre in the eastern city of Xuzhou, a few dozen healthy adults have become some of the first to trial a vaccine candidate for the coronavirus. They are among a small [...]
A team of researchers hailing from Harvard and Université de Montréal today launched Epitopes.world, an AI-powered, interactive platform designed to facilitate COVID-19 vaccine development. It’s built atop an algorithm — CAMAP — that generates predictions for potential [...]
The "Human Brain/Cloud Interface" paper had more views that 99% of Frontiers articles. It has now been added to Frontier's "Nanotechnologies in Neuroscience and Neuroengineering" ebook which is available for download. Contributors: Frank J. [...]
This is the full-length version of this post. You can read the condensed version, which appeared as an opinion article in the Washington Post, here. The coronavirus pandemic pits all of humanity against the virus. The [...]
European photonics scientists are developing an ultrasensitive laser sensor that detects coronavirus at the earliest point of infection from a saliva or nasal swab in minutes. Responding to the European Commission’s Express Calls to [...]
Understanding how COVID-19 attacks the human body is essential to developing an effective treatment or vaccine to stop the global pandemic — but there's still so much we don't know about how it can kill us. As [...]