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Melting in Biological Technology

Melting defects could lead to smaller, more powerful microchips

... by Liquefaction (SPEL), achieves this by melting the structures on a chip momentarily, and guiding ... straighter, and dots become rounder. Simple melting by direct heating has previously been shown to ... semiconductors and metals, which have much higher melting points. Heating the chip to such temperatures ...

Roche to Introduce New LightCycler(R) MRSA Advanced Test in the EU

... utilized real-time amplification systems available. The LightCycler(R) 2.0 Instrument was the first system to introduce hybridization probes, true melting curve analysis, automated absolute quantification, and relative quantification with efficiency correction. Combining the power of the LightCycler(R) ...

Venter Institute Launches the J. Robert Beyster and Life Technologies 2009-2010 Research Voyage of the Sorcerer II Expedition

... up the West Coast of the U.S. and into Alaska. While in Alaska the Sorcerer II took samples in Glacier Bay National Park including water taken from melting glaciers there. Throughout 2008, the Sorcerer II conducted extensive sampling in the waters off San Diego and the coast of California, Oregon ...

Paper electrified by copper particles

... nanoparticles the number of surface atoms is considerably greater than the number of atoms inside the material, which, among other things, makes the melting temperature of nanomaterials very low. With suitable heat treatment (sintering), the particles manufactured by the research group can be made to form ...

MIT uses nano-origami to build tiny electronic devices

... have developed a few ways to do this successfully: one uses magnets; another involves attaching polymers to a certain spot on the faces and melting them with an electric current, sealing the two faces together. They're still working on getting faces and edges of a folded cube to line up with ...

Creating unconventional metals

... that something which was thought to exist theoretically in mathematical physics could actually be found in an alloy which was simply formed by melting together a few common elements." Professor Gabriel Aeppli of UCL (University College London), another member of the research team and Director of ...

Principle of Recursive Genome Function Supersedes Dogmas; By Andras Pellionisz, Online Ahead of Print; (Scientific Visionary Vindicated)

... "genome-wide" for more data, as next-generation sequencing made the entire genome of many species (including humans) available with rapidly melting price tag. Application of brute force to turn out more data instead of revising axioms created its own problems, however. A dreaded DNA data ...

Metals shape up with a little help from friends

... absence of air to convert the polymers to a carbon scaffold. The scaffold is then allowed to cool. Because the metal nanoparticles have a very low melting point, without the carbon scaffold they would stubbornly fuse together in an uncontrolled fashion. Using this process, the carbon scaffold can be ...

In 'novel playground,' metals are formed into porous nanostructures

... step is to heat the material to a higher temperature in air to oxidize the ligands and burn away the carbon. Metal nanoparticles have a very low melting point at their surface, so the particles sinter together into a solid metal structure. The researchers have made fairly large chunks of porous ...

ARUP Laboratories Partners With Pathology Service Associates

... ARUP's Anatomic Pathology Division continues to update its technologically-advanced menu by offering a multitude of molecular techniques, such as melting curve analysis, PCR, and fluorescence in situ hybridization (FISH) techniques for detection of gene amplification involving HER-2/neu, EGFR, and ...

NC State breakthrough results in super-hard nanocrystalline iron that can take the heat

... have developed an iron-zirconium alloy that retains its nanocrystalline structures at temperatures above 1,300 degrees Celsius approaching the melting point of iron. Kris Darling, a Ph.D. student at NC State who led the project to develop the material, explains that the alloys ability to retain ...

Femtogram-level chemical measurements now possible, U. of I. team reports

... of the sample can be determined by a cantilever resonance technique. To analyze the sample, the heater temperature is raised to slightly above the melting point of the sample material. The material is then analyzed by complementary Raman or Fourier transform infrared spectroscopic imaging, which ...

Practical Applications of HyperDSC in a Pharmaceutical Laboratory

... to detect such events as glass transition or the melting of a compound when they are concealed by kinetic ... of heat flux up to 500C/min. The melting peak of an Indium standard has reliable onset and ... which a very weak endotherm was detected for the melting of Carbamazepine form III, a polymorph making up ...

Use of the DCode System to Detect the Food-Borne Bacterial Pathogen Listeria monocytogenes

... 10 C higher than the calculated primer melting temperature for the first cycle, then decreasing ... difference yields a DNA fragment with lower %G+C, melting at a lower denaturant concentration to ... base differences did not change the %G+C of the melting domain in the fragments. ...

Real-Time PCR/Melt-Curve Analysis: SNP Detection With FRET, Rev A

... with increasing temperature until the melting temperature of the probe-template hybrid ... point of maximum rate of change is considered the melting temperature of the probe-template ... a mutation. The distinctly different melting temperatures of the two possible hybrids ...

Identification of Nonspecific Products Using Melt-Curve Analysis on the iCycler iQ Detection System, Rev A

... change in fluorescence accompanies the melting of the double-stranded PCR products. A plot of ... in fluorescence as distinct peaks. The melting temperature (T m ) of each product is defined as ... peak in the no-template control wells at a melting temperature (T m ) of approximately ...

Using the DCode System to Identify DNA Sequence Variation for Studies of Population Structure in Marine Organisms

... denaturing gels were run to determine their melting profiles empirically. The resulting ... in order to construct a theoretical melting profile of the PCR product (Figure 1). The ... to obtain very large fragments with ideal melting properties. One strategy is to amplify ...

Real-Time Quantification of Genomic DNA Using DyNAzyme II DNA Polymerase and SYBR Green I Dye

... Table 3. Figure 2 shows the melting curves for the four replicate lambda DNA ... point of inflection for the curve, the melting point (T m ), is clearly seen as a single, common ... 82C. This peak corresponds to the predicted melting temperature of the amplicon, ...

Detection of Genetically Modified Soybean in Processed Foods Using Real-Time Quantitative PCR with SYBR Green I Dye on the DNA Engine Opticon 2 System

... sample. The results of the melting curve analysis are presented in Figures 2 ... Plotting the negative first derivative shows the melting point (T m ) as a single peak at ... the EPSPS primers. Comparison of the melting curves of the spiked and nonspiked soy ...

Temporal Temperature Gradient Electrophoresis: A Powerful Technique to Screen Mutations

... and wild-type molecules have different melting behavior and thus begin to denature at different ... Another approach uses the theoretical melting behavior of the DNA sequence as a ... this method, the first step is to ascertain the melting profile of the sequence of interest. ...

TTGE on the DCode System

... a wider range, several fragments with different melting behavior can be analyzed on the same ... CDGE detects nearly all mutations within one melting domain, but has the disadvantage of ... with only one low and one high melting domain will often have a short transition ...

Detection of p53 Gene in Breast Cancer by Denaturing Gradient Gel Electrophoresis and the DCode System

... a gradient of chemical denaturant. DNA melting is sequence specific and occurs in discrete segments called melting domains. Since melting involves breaking the hydrogen bonds that ...

Detection of Variation in Highly Polymorphic Mhc Genes by Denaturing Gradient Gel Electrophoresis Using the DCode System

... amplified fragments by the differences in their melting behavior (Fischer and Lerman 1983). By ... of the sequence variation and the lower melting domain reside on the 3' end of the ... 2 codon insert and the presence of two melting domains may cause shifting of some ...

Detection of K-ras Point Mutations in the Pancreas by Constant Denaturing Gel Electrophoresis Using the DCode System

... Results The calculated melting profile of the generated PCR fragment shows that it contains three melting domains. The putative mutations were in the second melting domain, which could not be analyzed without a GC ...

DGGE Analysis Using the DCode System, Rev B

... will melt in discrete segments called melting domains. The melting temperature (T m ) of these domains is ... creating branched molecules. Partial melting reduces the DNAs mobility in a ...

A Multiple Mutation Model System as a Test Development and Training Tool for Denaturing Gradient Gel Electrophoresis

... greater GC content resulting in higher melting temperatures. The ability of DGGE to detect ... alterations is based on the differential melting characteristics of homoduplex DNA ... a region of sequence alteration. The melting characteristics of a double stranded DNA ...

HotStarTaq PCR Handbook

... templates by modifying the melting behavior of DNA. This unique reagent ... PCR assays. Q-Solution changes the melting behavior of DNA and can be used for ... Simplified formula for estimating melting temperature (T m ): T m = ...

QIAGEN Multiplex PCR Handbook

... templates by modifying the melting behavior of DNA. This unique reagent often ... for multiplex PCR. Q-Solution changes the melting behavior of DNA and will often improve a ... Simplified formula for estimating melting temperature (Tm): Tm = 2C x ...

Using the TripleMaster PCR System for Robust Amplification of GC-Rich DNA Templates

... base pairs and thereby lowering the melting temperature of DNA. DMSO has been ... of PCR reactions, their effects on the melting temperature of DNA alters the optimal ... first cycle is set at or a few degrees above the melting temperatures of the primers. The ...

General Notes on Primer Design in PCR*

... things such as the length of the product, its melting temperature and ultimately the yield. A ... are: Primer length melting Temperature (Tm) Specificity ... relationship between annealing temperature and melting temperature is one of the Black Boxes ...

Optimizing DNA Amplification Protocols using the Eppendorf Mastercycler

... The length of the primers; the melting temperature (Tm); the composition of ... bp long. The influence of the primer's melting temperature on the annealing temperature in PCR ... an influence on primer annealing, the melting temperature of the PCR product and product ...

Mx4000 Multiplex Quantitative PCR System*,PPP

... allelic discrimination, plate reads, melting curves, and quantification of single ... QPCR, qualitative detection, and melting curve profiles. View Real-Time Plots while ... intensity screen, final call results, melting curves, annealing range, and text reports. A ...

Denaturing HPLC (DHPLC)

... from the column earlier than the homoduplexes because of their reduced melting temperature. Optimisation of DHPLC, requires the generation of a melting profile for each PCR fragment to determine its optimal temperature for ...

Real-Time PCR: General Considerations, Rev A

... structure if possible Use an annealing temperature above the melting temperature (T m ) for any template secondary structures ... Design primers with a GC content of 5060% Maintain a melting temperature (T m ) between 50 and 65C Eliminate secondary ...

Quantitation of GAD67 Gene Expression in Prefrontal Cortex of Schizophrenia Patients Using the iCycler iQ Detection System and Molecular Beacons, Rev A

... using Vector NTI software (InforMax, North Bethesda, MD). The melting temperatures (T m ) of the primer and probe sequences were ... the 5' end, and the quencher DABCYL linked to the 3' end. The melting temperatures of the hairpin stems and probe sequences were ...

Rapid, Reproducible Real-Time Quantitative RT-PCR Using the iCycler iQ Real-Time PCR Detection System and iQ Supermix, Rev A

... and fluorescence data were collected at a temperature above the melting temperature of nonspecific products (Morrison et al. 1998). ... PCR product was verified both by the presence of a single melting temperature peak representing a specific product (vs. a ...

Detection of Mutations in the Fas Antigen of Lymphoma Tumors by RT-PCR and Denaturing Gradient Gel Electrophoresis

... 55 C to allow heteroduplex formation. melting temperature of the 430 bp PCR product was ... which correlated to the predicted melting temperature of 6570 C. All further analyses ... gene. By calculating the predicted melting temperature of a segment of DNA, ...

DGGE Analysis for Non-Invasive Studies of Primate Diet

... produced by PCR amplification. To determine the melting temperature of PCR products, they were first analyzed on a ... species possessed identical sequences (unpublished) in the melting domain under examination, and thus differentiation could not be ...

UW-Madison Laser Device to Study Polar Ice Caps

... way to precisely measure change over the vast desert of ice. These measurements of elevation change over time will show whether the ice sheets are melting or growing as the Earth's climate undergoes natural and human-induced changes. ...
Other Contents
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