Security in research

Research collaboration is one of the key markers of success for a university, particularly with international partners. It’s an opportunity for institutions to widen the scope of their influence, enhance innovation and prove that they are important players on the global stage. However, in an uncertain political climate, universities must take steps to consider how to keep sensitive research secure from potentially hostile foreign states, while still ensuring that researchers have the freedom to work with other academics across the world.

In April, a consultation led by former UK Deputy Prime Minister Oliver Dowden was announced to protect universities from national security threats posed by foreign states. The initiative followed warnings from MI5 and the National Cyber Security Centre (NCSC) about foreign states targeting UK universities to advance their authoritarian, military and commercial goals, particularly through acquiring cutting-edge technology.

During a security briefing with Vice Chancellors from 24 leading UK universities (the Russell Group), Dowden emphasised the need to balance openness and security. The consultation focused on protecting sensitive research with potential dual civilian and military uses and preventing dependency on foreign investment.

Dr Andrew Walsh, Executive Director of Research & Business Engagement at the UK’s University of Manchester, was keen to emphasise to QS Insights Magazine the importance of government guidance in research security: “The government has an incredibly important role to play in helping keep research secure through advice [including advisory bodies such as RCAT and NPSA] and policies like export controls and ATAS. We all have our part to play in protecting research security, while enabling academic freedom within the law.”

Tobin Smith, Senior Vice President for Government Relations and Public Policy at AAU is at the forefront of matters relating to international research collaboration, plus regulatory and compliance issues. “Universities take ensuring the security and integrity of the research they conduct on behalf of the federal government very seriously. They are already taking important steps to ensure research security, including implementing new and enhanced foreign visitor policies to better monitor, and in some instances restrict, visitors (including international visitors) to specific laboratories on university campuses,” he says.

“Additionally, universities are reviewing international collaborations, contracts, and foreign gifts to assess potential risks involved in such engagements; in some instances, they choose not to enter into such agreements because of research security risks.”

Certain areas of research are under the microscope more than others when it comes to their potential to be used against a country’s national security interests, particularly those with military or scientific applications. However, it isn’t only academics in specific fields who need to follow government guidelines.

Dr Walsh explains how the University of Manchester advises researchers in all faculty areas to consider how their work may be used: “Research may be applied in different ways that weren’t intended by the researcher, so we encourage all staff to think about the risks of ‘dual use’ and make sure they comply with the relevant legislation. We also keep aware of the particular risks involved in emerging technologies.”

Smith echoes Dr Walsh, with the AAU considering not only the focus of the research, but the potential usage: “While there is often a great deal of focus and concern of theft and academic integrity surrounding certain ‘sensitive’ areas of research and critical and emerging technologies [for example, AI, quantum computing, biotechnology], perhaps more important is assessing the nature and technical readiness level (TRL) of the research involved. It is important to keep fundamental research for which an application is still unclear open if science is to advance, even in these areas of research.

“It is also important that we not overlook the need to protect the integrity and the security of certain data on all research projects, even fundamental research like pre-publication data/information and certain intellectual property like grant proposals under review by US federal agencies.”

Unfortunately, there are concerns of overreach by governments in protecting research could lead to a decline in global collaboration and reduce the value of research. International research collaboration is beneficial for several reasons, such as diversity of perspectives, sharing of resources, talent mobility, and perhaps most importantly, tackling challenges such as climate change, pandemics and food security, which are global and require coordinated international efforts.

Professor Milligan is a keen proponent of international collaboration, saying: “While geopolitical realities do influence the international partnerships that the University of Waterloo enters into, and institutional collaborations are evaluated on a case-by-case basis, we remain convinced that international collaboration is necessary to tackle the profound international challenges that face our world today, from climate change to international governance.

“We have been working closely with partners in the US, in Europe and the UK, in Australia and elsewhere to work to develop shared approaches on research security.”

This is a point echoed by Dr Walsh, who describes the approach taken by the University of Manchester when considering research partners: “Research is a global endeavour of opportunities and operational challenges. We aim to continue to produce world-class research with impact which yields economic, environmental, health, social and cultural benefits across the world. We are committed to encouraging and enabling global collaborations to address major global challenges.

“We also recognise that we must navigate complexity to operate in this global environment. This includes regulations concerning potential risks to national security, and the moral and practical considerations when collaborating with partners in low-income countries or in conflict zones, for example.”

The AAU have previously warned about excessive regulation stifling international research efforts, as Smith explains: “We have opposed and been fighting against some legislatives proposals we believe would stifle the ability of our universities and greatly discourage their faculty to engaging in important international collaborations, such as the DETERRENT Act.

“We must make sure that such proposals strike the right balance between ensuring security and integrity while at the same time protecting the critical need for science to be open and scientific results to be shared. Proposals that seek to overly restrict or control research results could have a counter-productive impact on US scientific advancement, economic leadership and our national security.”

Read the article on QS Insights Magazine.

Mineral found in human bone can help fight toxic organic compounds

Many industrial processes emit volatile organic compounds (VOCs) that are hazardous to human health. In a new study, scientists from NITech, Japan, tailor the catalytic activity of hydroxyapatite, a mineral contained in human bones, using mechanical stress. This method was inexpensive and resulted in a 100% VOC conversion, potentially opening doors to effective climate control.

A team of scientists led by Prof. Takashi Shirai from Nagoya Institute of Technology (NITech), Japan, reported a complete catalytic decomposition of VOC using an inorganic compound called “hydroxyapatite” (HAp), a naturally occurring form of the mineral calcium phosphate that makes up most of the human bone structure.

“HAp is made of elements abundant in nature, is non-toxic and exhibits high biocompatibility. Our results, thus, opened up a new possibility for designing cheap, noble-metal-free catalysts for VOC control,” says Prof. Shirai. 

In a new study published in Scientific Reports, Prof. Shirai and his colleague Yunzi Xin from NITech now take things further by tailoring the “active surface” of HAp using a mechanochemical treatment under ambient conditions that leads to a highly efficient catalytic oxidation of VOC with 100% conversion to harmless compounds.

Specifically, they mixed initial HAp with ceramic balls in a vessel and conducted “planetary ball milling” at room temperature and ambient pressure. This essentially altered the chemical structure of HAp and allowed for its selective tailoring by simply changing the ball size.

By using different ball sizes (3, 10, and 15 mm) to systematically vary the morphology, crystallinity, surface defects/oxygen vacancy, acidity/basicity, and VOC affinity of HAps, the
scientists carried out their characterization using various techniques such as scanning electron microscopy, powder X-ray diffraction, Fourier transform infrared spectrometry, X-ray photoelectron spectroscopy, electron spin resonance analysis, surface acidity/basicity evaluation, and gas-flowing diffuse reflectance infrared Fourier transform spectroscopy. 

They observed a predominance of oxygen vacancy formation in the PO43- (triply charged
PO4) site along with an enhanced basic site population caused by selective mechanochemical activation of the c-plane (plane perpendicular to the symmetry axis) of the hexagonal HAp crystal and attributed it to the excellent catalytic conversion of VOC to CO2/CO. 

Moreover, they found that HAps treated with 3 mm balls showed superior catalytic activity over that treated with 10- and 15-mm balls, even though larger balls caused more defects and basicity. By looking at the surface absorption of a VOC, ethyl acetate, scientists attributed this anomaly to the inhibited absorption of ethyl acetate in HAp treated with larger balls, leading to suppressed catalysis. 

The results have excited scientists about the future prospects of HAps. “We expect that our catalyst will contribute significantly to VOC controlling and environmental cleaning all over the world by next decade, achieving the sustainable goals of clean air and water, affordable energy, and climate action,” comments Prof. Shirai, excited. 

Wearable electronics powered by human sweat

A group of scientists from Japan has successfully developed and tested a wearable biofuel cell array that generates electric power from the lactate in the wearer’s sweat, opening doors to electronic health monitoring powered by nothing but bodily fluids.

A team of scientists led by Associate Professor Isao Shitanda from Tokyo University of Science, Japan, are exploring efficient ways of using sweat as the sole source of power for wearable electronics.

In their most recent study, published in the Journal of Power Sources, they present a novel design for a biofuel cell array that uses a chemical in sweat, lactate, to generate enough power to drive a biosensor and wireless communication devices for a short time.

The study was carried out in collaboration with Dr Seiya Tsujimura from the University of Tsukuba, Dr Tsutomu Mikawa from RIKEN, and Dr Hiroyuki Matsui from Yamagata University, all in Japan. 

Their new biofuel cell array looks like a paper bandage that can be worn, for example, on the arm or forearm. It essentially consists of a water-repellent paper substrate onto which multiple biofuel cells are laid out in series and in parallel; the number of cells depends on the output voltage and power required.

In each cell, electrochemical reactions between lactate and an enzyme present in the electrodes produce an electric current, which flows to a general current collector made from a conducting carbon paste.

This is not the first lactate-based biofuel cell, but some key differences make this novel design stand out from existing lactate-based biofuel cells. One is the fact that the entire device can be fabricated via screen printing, a technique generally suitable for cost-effective mass production.

This was possible via the careful selection of materials and an ingenious layout. For example, whereas similar previous cells used silver wires as conducting paths, the present biofuel cells employ porous carbon ink.

Another advantage is the way in which lactate is delivered to the cells. Paper layers are used to collect sweat and transport it to all cells simultaneously through the capillary effect—the same effect by which water quickly travels through a napkin when it comes into contact with a water puddle.

These advantages make the biofuel cell arrays exhibit an unprecedented ability to deliver power to electronic circuits, as Dr. Shitanda remarks: “In our experiments, our paper-based biofuel cells could generate a voltage of 3.66 V and an output power of 4.3 mW. To the best
of our knowledge, this power is significantly higher than that of previously reported lactate biofuel cells.”

To demonstrate their applicability for wearable biosensors and general electronic devices, the team fabricated a self-driven lactate biosensor that could not only power itself
using lactate and measure the lactate concentration in sweat, but also communicate the measured values in real-time to a smartphone via a low-power Bluetooth device.

As explained in a previous study also led by Dr. Shitanda, lactate is an important biomarker
that reflects the intensity of physical exercise in real-time, which is relevant in the training of athletes and rehabilitation patients. However, the proposed biofuel cell arrays can power not only wearable lactate biosensors, but also other types of wearable electronics.

“We managed to drive a commercially available activity meter for 1.5 hours using one drop of artificial sweat and our biofuel cells,” explains Dr. Shitanda, “and we expect they should be capable of powering all sorts of devices, such as smart watches and other commonplace portable gadgets.”

TPU scientists offer method for producing frost-resistant fuel oil from old tire casing

Scientists of Tomsk Polytechnic University have developed a technology for producing frost-resistant fuel oil from old tire casing. They were the first in Russia to test a method of steam gasification to produce frost-resistant fuel oil.

The laboratory research demonstrated that this kind of fuel oil does not freeze up and does not lose its properties up to -50°С (conventional fuel oil freezes up in the range from 10°С to -10°С depending on its brand). Sulfur content in frost-resistant fuel oil is approximately two times lower, the derivatives of that are the main environmental contaminants.

“According to the very conservative estimate, about 1 million t of tire casing is thrown away in Russia and about 1 billiard t is thrown away in the world. Some part of the tire casing remains on rubbish dumps, where even under the sunlight, tire casing releases toxic substances, another part is burnt out with an incredible volume of harmful emissions and another 30% of thrown away tire casing is converted to crumb rubber,” Vladimir Gubin, Deputy Director for Development of the TPU School of Energy and Power Engineering, says.

“We treat tire casing not as rubbish but as a source of useful products for the manufacturing industry. We persistently searched for methods which allow converting tire casing with maximum benefit, economic and environmental.”

An experimental installation was created by the scientists at the TPU research center – ecoenergy 4.0. In this installation, under the impact of superheated water vapour, raw material that is tiny crumb rubber decompose into useful products. In particular, liquid hydrocarbons, such as fuel oil, release.

“The topic of recycling tire casing is developing in different countries, the leaders in this field are the USA and China. Pyrolysis is usually used for recycling tire casing. It is the thermal decomposition of a product. The process runs in a vacuum environment. There are a few small-capacity plants in Russia recycling tire casing using this method, however, they produce relatively small volumes of production.

“We offered to use a method of steam gasification, i.e. rubber decomposition occurs under the impact of superheated water vapor. This method and a number of our engineering solutions allowed producing recycled products of higher quality in the environmentally safe regime,” Kirill Larionov, Associate Professor of the TPU Butakov Research Center, explains.

Nowadays, fuel oil is widely used as a fuel for heating plants and ships in the Arctic zones.

“We compared fuel oil of the conventional brands and that one produced from rubber waste. The obtained data prove that the fuel oil produced from rubber waste surpasses all the properties of conventional fuel oil. Particularly, sulfur content is considerably lower in the fuel oil produced from rubber waste that makes it more environmentally friendly. At the same time, it is less viscous and solid, which is important for use. It burns and gives up the same energy as conventional brands do,” Maria Kirgina, Associate Professor of the TPU Division for Chemical Engineering, who conducted research of fuel oil, says.

The TPU scientists already conducted the required complex of fundamental research, created the experimental installation. Engineering documentation on the creation of the experimental installation capable to recycle up to 300 kg of crumb rubber per hour is currently developed jointly with an industrial partner, the Innovatech scientific production association from Saint Petersburg.

“A university is a basic site for technology adjustment. In order to take the next intensive steps towards the introduction of the technology into the industry, we require the participation of industrial partners and investment,” Vladimir Gubin notes

Besides the frost-resistant fuel oil, the technology also allows simultaneously producing gas that can be returned to a technological cycle and producing carbon black as fine powder. The fine powder can be used, for instance, in pavement materials.