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Direct detection of circulating tumor cells in blood samples

Enhanced Glow

09-Aug-2019

Tumor cells circulating in blood are markers for the early detection and prognosis of cancer. However, detection of these cells is challenging because of their scarcity. In the journal Angewandte Chemie, scientists have now introduced an ultrasensitive method for the direct detection of ...

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A Close Look at Lithium Batteries

Fluorescence probe shows the distribution of active lithium species on lithium metal anodes

29-Apr-2019

Batteries with metallic lithium anodes offer enhanced efficiency compared to conventional lithium-ion batteries because of their higher capacity. However, safety concerns and a short lifespan stand in the way. To better analyze the causes of malfunctions and premature failure of such batteries, ...

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China develops world's brightest VUV free electron laser research facility

16-Jan-2017

A team of Chinese scientists announced on Jan. 13 that they have developed a new bright VUV FEL light source, the Dalian Coherent Light Source (DCLS), which can deliver world's brightest FEL light in an energy range from 8 to 24 eV, making it unique of the same kind that only operates in the VUV ...

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Stem cells help researchers study the effects of pollution on human health

12-Aug-2015

A recent study shows that embryonic stem cells could serve as a model to evaluate the physiological effects of environmental pollutants efficiently and cost-effectively. The use of stem cells has found another facade. In the world we live in today, people are constantly exposed to artificial ...

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Materials: The first graphene-based chiral sensor

03-Aug-2011

A reusable, natural and cheap amylose-functionalised graphene sensor was developed for highly sensitive and visual fluorescent chiral sensing by a team in China.The team found that the sensor’s detection sensitivity toward L-tryptophan was over 100 times higher than that of recently reported ...

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New X-ray technique distinguishes between that which previously looked the same

A new method forms the basis for the widespread use of an X-ray technique which distinguishing types of tissue that normally appear the same in conventional X-ray images

27-Jul-2010

Traditional X-ray images can clearly distinguish between bones and soft tissue, with muscles, cartilage, tendons and soft-tissue tumours all look virtually identical. The phase-contrast technique developed a few years ago at the Paul Scherrer Institute enables X-ray images to be produced that ...

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Photoelectric switch

08-Apr-2009

A collaboration of scientists from various Beijing institutes, have made a pH-switchable, DNA-quantum dot hybrid that can also generate a photocurrent depending on the pH, allowing DNA to change conformation from a quadruplex to a double strand. Zhiyong Tang, Dongsheng Liu and colleagues from ...

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Single molecules cooling off

Surface-enhanced Raman scattering has been used to probe single molecular behaviour by scientists in China and Sweden

28-Jan-2009

Probing single molecular behaviour using surface-enhanced Raman scattering (SM-SERS) has attracted considerable attention recently, although there are a few drawbacks. One major problem is the strong spectral-fluctuation (also known as ‘signal-blinking’) that is associated with single molecules, ...

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Waters Corporation Enters Into Collaborations with Chinese Partners

Raising the Bar for Food Safety and Environmental Standards in China

26-Jun-2006

Waters Corporation announced collaborations with the China Municipal Center for Disease Prevention and Control (China CDC), Beijing Municipal Center for Disease Prevention and Control (BJCDC) and The Research Center for Eco-Environmental Sciences (RCEES) of the Chinese Academy of Sciences to ...

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