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With new experimental method, researchers probe spin structure in 2D materials for first time（图）
2D材料 自旋结构 “魔角”石墨烯
2023/6/26
By observing spin structure in “magic-angle” graphene, a team of scientists led by Brown University researchers have found a workaround for a long-standing roadblock in the field of two-dimensional el...
New probe developed to detect a common target for anti-inflammatory drugs（图）
New probe developed detect common target anti-inflammatory drugs
2020/3/6
Scientists have developed a probe named CoxFluor that can distinguish between Cyclooxygenase-2, an enzyme that plays a major role in driving the progression of cancer, and the enzyme Cyclooxygenase-1,...
How small is the tiniest possible particle of ice? According to new NSF-funded research published in the journal Proceedings of the National Academy of Sciences, the smallest nanodroplet of water in w...
Automated Probe Repositioning for On-Die EM Measurements
side-channel analysis EM probe machine learning
2019/8/14
In side-channel analysis attacks, on-die localized EM monitoring enable high bandwidth measurements of only a relevant part of the Integrated Circuit (IC). This can lead to improved attacks compared t...
Horizontal DEMA Attack as the Criterion to Select the Best Suitable EM Probe
Side Channel Analysis horizontal differential electromagnetic analy-sis attack (DEMA) electromagnetic (EM) probe
2018/12/6
Implementing cryptographic algorithms in a tamper resistant way is an extremely complex task as the algorithm used and the target platform have a significant impact on the potential leakage of the imp...
Black holes make for a great space mystery. They're so massive that nothing, not even light, can escape a black hole once it gets close enough. A great mystery for scientists is that there's evidence ...
Materials Scientists Probe Protein’s Role in Speeding Ebola Spread（图）
Materials Scientists Protein’s Role Ebola Spread
2017/9/5
Two Johns Hopkins materials science graduate students and their professors played a key role in a multi-institution research project that pinpointed how a tiny protein seems to make the deadly Ebola v...
Since the invention in 1980s, scanning probe microscopy (SPM) has been considered as the valuable avenue to visualize topography of sample in nanoscale. After more than 30-year development, SPMs have ...
Phosphate Vibrations Probe Local Electric Fields and Hydration in Biomolecules
Phosphates Water Phospholipids Spectrophotometry, Infrared Electricity Models, Molecular
2016/5/25
The role of electric fields in important biological processes such as binding and catalysis has been studied almost exclusively by computational methods. Experimental measurements of the local electri...
Site-Specific Conversion of Cysteine Thiols into Thiocyanate Creates an IR Probe for Electric Fields in Proteins
food packaging perfluorinated dietary intake human exposure
2016/5/24
The nitrile stretching mode of the thiocyanate moiety is a nearly ideal probe for measuring the local electric field arising from the organized environment of the interior of a protein. Nitriles were ...
Vibrational Stark Spectroscopy in Proteins:A Probe and Calibration for Electrostatic Fields
affinity partition plasma membrane IGF-I receptor C6 glioma wheat germ agglutinin two-phase partitioning
2016/5/23
We report the first measurement of the vibrational Stark effect in a protein, providing quantitative information on the sensitivity of a vibrational transition to an applied electric field. This can b...
The Use of Large Magnetic Fields to Probe Photoinduced Electron Transfer Reactions:An Example from Photosynthetic Reaction Centers
Large Magnetic Fields Photoinduced Electron Transfer Reactions Photosynthetic Reaction Centers
2016/5/20
We will outline an experimental approach that uses large magnetic fields and simple optical methods, combined with a method of data analysis, that is ideally suited for studying the mechanism of rapid...
Probe of Three-Dimensional Chiral Topological Insulators in an Optical Lattice
Three-Dimensional Chiral Topological Insulators Optical Lattice
2016/1/22
We propose a feasible experimental scheme to realize a three-dimensional chiral topological insulator with cold fermionic atoms in an optical lattice, which is characterized by an integer topological ...
Direct Probe of Topological Order for Cold Atoms.
Direct Probe Topological Order Cold Atoms
2016/1/22
Cold-atom experiments in optical lattices offer a versatile platform to realize various topological quantum phases. A key challenge in those experiments is to unambiguously probe the topological order...
Dynamic Behavior of RS latches using FIB processing and probe connection
implementation Physically Unclonable Function FIB
2016/1/6
PUF (Physically Unclonable Function) technologies attract
attention as a candidate to prevent counterfeit chips. A latch PUF is
known as a high performance PUF among various types of proposed
PUFs....