Chemical & Engineering News: Analytical SCENE

Weighing Viruses, Nanoparticles

nobody@acs.org("Journal News and Community") — 28 May 2012 05:00:38 +0000

Technique enables analysis of previously hard-to-measure particles

Martian Meteorites Contain Abiotic Carbon

nobody@acs.org("Elizabeth K. Wilson") — 28 May 2012 05:00:37 +0000

Volcanic processes created large carbon-based molecules in meteorites

X-Ray Data Trash Turned Treasure

nobody@acs.org("Carmen Drahl") — 28 May 2012 05:00:32 +0000

Including diffraction data that’s usually thrown away could improve crystal structures

Surface Do-Overs

nobody@acs.org("Carmen Drahl") — 28 May 2012 05:00:29 +0000

Photochemistry: Rapid reaction attaches protein or dyes

Nanocrystal Growth Observed

nobody@acs.org("Lauren K. Wolf") — 28 May 2012 05:00:27 +0000

Imaging: Using electron microscopy, researchers reveal mechanism of nanoparticle fusion

A Step Forward For Quantum Dots

nobody@acs.org("Lauren K. Wolf") — 28 May 2012 05:00:19 +0000

Nanomedicine: Researchers see no negative health effects of the tiny particles in monkeys

Sweating The Small Stuff

nobody@acs.org("Lauren K. Wolf") — 28 May 2012 05:00:08 +0000

Concerns grow over nanoparticle characterization and purity

BPA Replacement Permeates Paper Products

nobody@acs.org("Janet Pelley") — 23 May 2012 19:04:00 +0000

Endocrine Disrupters: Researchers report first data on Bisphenol A alternative in receipts

FOOD SAFETY

nobody@acs.org("Ann M. Thayer") — 22 May 2012 21:37:50 +0000

Companies Support New Testing Laboratories Across The Globe

Top Instrument Firms

nobody@acs.org("Ann M. Thayer") — 22 May 2012 21:37:49 +0000

Leading analytical and lab instrument firms in C&EN’s ranking grow via acquisition and expansion in emerging markets

Easy Mass Measurement Of Viruses And Nanoparticles

nobody@acs.org("Katharine Sanderson") — 22 May 2012 17:07:00 +0000

Mass Spectrometry: Technique enables analysis of previously hard-to-measure particles

Element Detection On The Road

nobody@acs.org("Sarah Everts") — 21 May 2012 19:20:00 +0000

Cultural Heritage: Scientists build a handheld tool for field studies of the composition of artifacts

Identifying Botulism Toxins

nobody@acs.org("Elizabeth K. Wilson") — 21 May 2012 16:39:00 +0000

Public Health: In-gel enzymatic digestions and mass spectrometry refine identification

Winning Water Cluster Structure

nobody@acs.org("Celia Henry Arnaud") — 21 May 2012 05:00:40 +0000

A cage-shaped isomer is the lowest energy structure for hexameric water clusters

How Copper Gets Its Green Patina

nobody@acs.org("Sarah Everts") — 21 May 2012 05:00:37 +0000

Time-lapse synchrotron X-ray diffraction provides a first glimpse of the growth of aesthetic nantokite on copper-clad buildings

Smoking Guns

nobody@acs.org("Celia Henry Arnaud") — 21 May 2012 05:00:12 +0000

Raman signatures of gunshot residue differentiate ammunition type and caliber

How Copper Gets Its Green Patina

nobody@acs.org("Sarah Everts") — 17 May 2012 17:15:00 +0000

Cultural Heritage: Scientists use X-ray synchrotron radiation to watch copper corrode

Graphene-Amyloid Combo

nobody@acs.org("Celia Henry Arnaud") — 14 May 2012 05:00:29 +0000

Materials consisting of alternating layers of graphene and amyloid protein fibrils function as shape-shifting biosensors

Protein Binding Hot Spots

nobody@acs.org("Jyllian Kemsley") — 14 May 2012 05:00:29 +0000

Modeling study identifies disruptions in solvent hydrogen-bonding networks as favorable areas for protein-protein interactions

Isotopes Help Clear Up Concerns About Chloroform In Groundwater

nobody@acs.org("Naomi Lubick") — 11 May 2012 14:43:28 +0000

Water Pollution: Carbon isotopes distinguish industrial sources of compound from natural ones

A Flexible Nerve-Gas Sensor

nobody@acs.org("Katherine Bourzac") — 09 May 2012 20:35:28 +0000

Chemical Detection: Nanotubes of a conducting polymer detect very low levels of chemical weapons

Fruit Ripeness Detected Via Nanotube

nobody@acs.org("Lauren K. Wolf") — 07 May 2012 05:00:29 +0000

MIT researchers develop carbon nanotube-based sensor that measures concentrations of ethylene, a ripeness indicator, as low as 0.5 ppm

Calixarenes Roam Protein’s Surface

nobody@acs.org("Carmen Drahl") — 07 May 2012 05:00:25 +0000

Ring-shaped molecules could promote crystallization

Spotting Culture Contaminants

nobody@acs.org("Corinna Wu") — 07 May 2012 05:00:19 +0000

Assay Development: Glowing protein detects mycoplasma hiding in cell culture

Pesticide Workshop Call for Papers

nobody@acs.org("Linda Wang") — 07 May 2012 05:00:12 +0000

Spectroscopy Shines Light On Mold

nobody@acs.org("Janet Pelley") — 02 May 2012 18:24:00 +0000

Indoor Air Quality: A form of Raman spectroscopy swiftly identifies the fungi associated with health problems in damp buildings

Protein Detection In A Snap

nobody@acs.org("Erika Gebel") — 02 May 2012 05:00:04 +0000

Microassays: A device called a snap chip eases mixing solutions in chip-based microassays

Spring-Loaded Nanoparticles Sense Proteases

nobody@acs.org("Journal News and Community") — 30 Apr 2012 05:00:44 +0000

A nanoparticle squeezed by peptides could help detect active enzymes associated with disease?

Fingerprinting Conflict Minerals

nobody@acs.org("Celia Henry Arnaud") — 30 Apr 2012 05:00:00 +0000

Spectroscopic method could help identify mineral origins

Blood Typing Made Simple

nobody@acs.org("Bethany Halford") — 30 Apr 2012 05:00:00 +0000

Bioanalysis: Paper-based device spells out blood type

Sequencing An Important Epigenetic Mark

nobody@acs.org("Sarah Everts") — 30 Apr 2012 05:00:00 +0000

Chemical Biology: Technique locates modified cytosines in genomic DNA with single-base resolution

Simple Probe Allows Drug Candidate Screening Without Labels

nobody@acs.org("Erika Gebel") — 27 Apr 2012 12:37:26 +0000

Drug Discovery: A small molecule fluoresces only when dislodged from a protein target by a drug molecule

Uncovering Cellular Contamination

nobody@acs.org("Corinna Wu") — 26 Apr 2012 19:42:00 +0000

Assay Development: Glowing enzyme detects mycoplasma hiding in cell culture

Microfluidic Device Quickly Tests Antibiotic Effectiveness

nobody@acs.org("Aaron A. Rowe") — 24 Apr 2012 19:01:00 +0000

Medical Diagnostics: Rotating beads measure bacterial growth

Streamlining Tetrazine Synthesis

nobody@acs.org("Carmen Drahl") — 24 Apr 2012 17:02:00 +0000

Organic Chemistry: Lewis acids make it easier to synthesize sought-after biochemical probes

Origins Of Paper Discoloration

nobody@acs.org("Mitch Jacoby") — 23 Apr 2012 05:00:51 +0000

Yellowing tied to various carbonyl-based chromophores produced via oxidation of cellulose

More Coverage For Glucose Meters

nobody@acs.org("") — 23 Apr 2012 05:00:50 +0000

Techniques replace functional DNAs with antibodies to analyze a wider range of targets

Pink Slime

nobody@acs.org("Carmen Drahl") — 23 Apr 2012 05:00:24 +0000

Ammonia’s the player in this beleaguered meat product

Structural Biology Team’s Rookie

nobody@acs.org("Celia Henry Arnaud") — 23 Apr 2012 05:00:00 +0000

Novice status notwithstanding, mass spectrometry answers questions that other methods can’t

Sequestering Key Plant Hormone

nobody@acs.org("Sarah Everts") — 23 Apr 2012 05:00:00 +0000

Molecular Biology: Family of protein transporters controls auxin levels in plant cells

Easing The Toil Of Hydrogen Exchange

nobody@acs.org("A. Maureen Rouhi") — 23 Apr 2012 05:00:00 +0000

Experiments to probe protein behavior get significant assist from instrument maker

Sand Filter Removes Estrogen With Ease

nobody@acs.org("Naomi Lubick") — 20 Apr 2012 16:57:00 +0000

Wastewater Pollution: Inexpensive wastewater treatment might work just as well as more advanced methods to remove polluting hormones

The Subtle Interplay of Nanoparticles and Bacteria

nobody@acs.org("Prachi Patel") — 19 Apr 2012 05:00:03 +0000

Nanomaterials: The antibacterial potency of nanoparticles depends on their size and on the bacterial species’ membrane structure

Spring-Loaded Nanoparticles Sense Proteases

nobody@acs.org("Erika Gebel") — 18 Apr 2012 21:32:00 +0000

Biosensors: A nanoparticle squeezed by peptides could help detect active enzymes associated with disease

More Coverage For Glucose Meters

nobody@acs.org("Stu Borman") — 17 Apr 2012 18:39:54 +0000

Biosensing: Techniques replace functional DNAs with antibodies to analyze a wider range of targets

A Colorful Detector For Phosgene

nobody@acs.org("Melissae Fellet") — 17 Apr 2012 16:57:00 +0000

Chemical Detection: Commercially available molecules react with the toxic gas to produce a fluorescent signal

Pink Slime

nobody@acs.org("Carmen Drahl") — 16 Apr 2012 16:31:00 +0000

Ammonia’s the player in this beleaguered meat product

Precatalytic Intron Structure Solved

nobody@acs.org("Celia Henry Arnaud") — 16 Apr 2012 05:00:27 +0000

Pre- and postcatalytic structures of a self-splicing RNA molecule (the group II intron from a bacterium) are similar

Breadfruit Battles Mosquitoes

nobody@acs.org("Bethany Halford") — 16 Apr 2012 05:00:26 +0000

Researchers elucidate the active chemicals in plant extracts that keep mosquitoes at bay

Normal And Mutant HIV Protease Active States Look The Same

nobody@acs.org("Celia Henry Arnaud") — 16 Apr 2012 05:00:25 +0000

Transition-state structures could make good drug targets that overcome protease inhibitor drug resistance

Synchrotron IR Tracks Phosphorylation

nobody@acs.org("Journal News and Community") — 16 Apr 2012 05:00:25 +0000

Powerful light source enables scientists to follow biochemical process within individual cells

Picture-Perfect Particles Enhance MRI Signal

nobody@acs.org("Katharine Sanderson") — 13 Apr 2012 17:33:00 +0000

Cell Imaging: Giant lipid vesicles fill cells with contrast agents

Bright Lights, Single Cells

nobody@acs.org("Erika Gebel") — 11 Apr 2012 22:23:00 +0000

Cellular Analysis: A powerful source of infrared light reveals phosphorylation within individual cells

Trapping Targets Of Methylating Enzymes

nobody@acs.org("Amanda Yarnell") — 09 Apr 2012 05:00:34 +0000

Method could help scientists figure out the roles these enzymes play in cells

Gypsum Genesis

nobody@acs.org("Jyllian Kemsley") — 09 Apr 2012 05:00:30 +0000

Calcium sulfate mineral crystallizes through a series of nanoscale species

Instruments Of Success

nobody@acs.org("Marc S. Reisch") — 09 Apr 2012 05:00:05 +0000

Scientific toolmakers look to private equity to bring novel instruments to market

Imaging Liquids With Graphene

nobody@acs.org("Mitch Jacoby") — 09 Apr 2012 05:00:00 +0000

Electron Microscopy: Carbon nanomaterial secures nanosized droplets in blisterlike formations

Protein Motion Capture

nobody@acs.org("Carmen Drahl") — 09 Apr 2012 05:00:00 +0000

Studies extend utility of thioamide fluorescent probes of protein folding

Technique Sniffs Out Mold In Film Archives

nobody@acs.org("Sarah Everts") — 03 Apr 2012 19:44:43 +0000

Cultural Heritage: Scientists find molecular signature produced by harmful microbes on film

Blood Test Flags Breast Cancer Recurrence

nobody@acs.org("Celia Henry Arnaud") — 02 Apr 2012 05:00:52 +0000

ACS Meeting News: Mass-spec-based assay is more sensitive and detects recurrence earlier than current test

Custom Lanthanide Probes

nobody@acs.org("Carmen Drahl") — 02 Apr 2012 05:00:51 +0000

ACS Meeting News: Tailoring strategy permits tracking of diverse analytes

SFC Fluidics

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:50 +0000

Princeton Instruments

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:49 +0000

iDisso

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:48 +0000

Xylem Analytics

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:47 +0000

Waters

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:46 +0000

Thermo Fisher Scientific

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:46 +0000

CEM

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:45 +0000

Oxford Instruments

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:44 +0000

Beckman Coulter

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:43 +0000

TTP Labtech

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:43 +0000

Bruker - MicroCalix

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:42 +0000

PicoSpin

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:41 +0000

Bruker - CryoProbe Prodigy

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:40 +0000

Shimadzu Scientific Instruments

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:39 +0000

New and Notable at Pittcon

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:38 +0000

Pittcon Instrument Roundup

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:37 +0000

Analytical Instrumentation

nobody@acs.org("Stu Borman") — 02 Apr 2012 05:00:07 +0000

C&EN panelists identify top new products at Pittcon 2012, including Editors’ Award winners

Chilly Outlook For Instruments

nobody@acs.org("Marc S. Reisch") — 02 Apr 2012 05:00:00 +0000

Industry executives at Pittcon 2012 strike a cautious note for the year ahead

Deep Breaths

nobody@acs.org("Celia Henry Arnaud") — 02 Apr 2012 05:00:00 +0000

A person’s breath can reveal signs of disease, but diagnostic breath analysis tools face complexities and challenges

Ionic Liquids Improve Separations

nobody@acs.org("Celia Henry Arnaud") — 02 Apr 2012 05:00:00 +0000

Scientists discuss recent addition to types of stationary phases available for gas chromatography

Triple-Protected Nanoparticles

nobody@acs.org("Mitch Jacoby") — 02 Apr 2012 05:00:00 +0000

ACS Meeting News: Uniform coating prevents common catalyst deactivation mechanisms

Triple Protection For Nanoparticles

nobody@acs.org("Mitch Jacoby") — 27 Mar 2012 22:00:00 +0000

ACS Meeting News: Uniform coating prevents common catalyst deactivation mechanisms

Antibacterial Agent Preserves Arson Evidence

nobody@acs.org("Melissae Fellet") — 27 Mar 2012 19:03:00 +0000

ACS Meeting News: Coating soil samples with triclosan prevents microbes from degrading gasoline used to start fires

Wearable Sampler To Check Exposure To Nanoparticles

nobody@acs.org("Katharine Sanderson") — 27 Mar 2012 15:53:00 +0000

Environmental Monitoring: A portable device combines technologies to collect particles of several sizes

Custom Lanthanide Probes

nobody@acs.org("Carmen Drahl") — 26 Mar 2012 20:48:00 +0000

ACS Meeting News: Tailoring strategy permits tracking of diverse analytes

HOMESTRETCH

nobody@acs.org("Celia Henry Arnaud") — 26 Mar 2012 05:00:43 +0000

MicroCHIPS Announces Results Of Human Trial

Single Gene Tracks Cells In Multiple Ways

nobody@acs.org("Journal News and Community") — 26 Mar 2012 05:00:23 +0000

Cells spotted on MRI, fluorescence imaging, and nuclear-medicine scans

Nickel Complex Sorts Out Xylenes

nobody@acs.org("Stephen K. Ritter") — 26 Mar 2012 05:00:23 +0000

Crystalline material displays unusual selectivity in separating three dimethylbenzene isomers

Gas Worse Than Diesel For Creating Aerosols In Air

nobody@acs.org("Jyllian Kemsley") — 26 Mar 2012 05:00:21 +0000

Comparison of weekday and weekend emissions points to leading role of gasoline engine exhaust

Opioid Receptors Revealed

nobody@acs.org("Lauren K. Wolf") — 26 Mar 2012 05:00:00 +0000

Structural Biology: Teams unveil structures of membrane proteins involved in pain, pleasure signaling

Watching Battery Anodes In Action

nobody@acs.org("Mitch Jacoby") — 26 Mar 2012 05:00:00 +0000

Electrochemistry: Microscopy reveals unusual phase transformation in high-capacity material

Big-Picture Thinker

nobody@acs.org("Celia Henry Arnaud") — 26 Mar 2012 05:00:00 +0000

Priestley Medalist Robert Langer’s entrepreneurial streak traces back to his dream of improving people’s lives

ODD ONE OUT

nobody@acs.org("Celia Henry Arnaud") — 26 Mar 2012 05:00:00 +0000

Living Proof Targets Personal Care Market Rather Than Medicine

Bob Langer’s Quarter-Century Of Companies

nobody@acs.org("Celia Henry Arnaud") — 26 Mar 2012 05:00:00 +0000

Living Lab

nobody@acs.org("Britt E. Erickson") — 26 Mar 2012 05:00:00 +0000

Public-private effort creates a structural biology center

Magnetic Nanoparticles Spot Biomarker Needle In A Haystack

nobody@acs.org("Katharine Sanderson") — 23 Mar 2012 16:12:00 +0000

Biochemical Analytics: Biomarker molecules link up particles into detectable clusters

Magnetic Stir Plate Speeds DNA Measurements

nobody@acs.org("Melissae Fellet") — 22 Mar 2012 19:16:00 +0000

Analytical Biochemistry: In minutes, scientists can measure the amount of DNA in a sample by watching it cluster onto magnetic beads

Sunscreen Compound Linked To Endometriosis

nobody@acs.org("Janet Pelley") — 22 Mar 2012 05:00:00 +0000

Endocrine Disrupters: Researchers find higher risk of reproductive disorder in women with high urine concentrations of ultraviolet-blocking compounds

Toxicity Tests Sans Animals

nobody@acs.org("Britt E. Erickson") — 19 Mar 2012 05:00:35 +0000

Cosmetics firm L’Oreal is working with EPA to validate a high-througput screening system

Methyl Handoff Between B Vitamins

nobody@acs.org("Amanda Yarnell") — 19 Mar 2012 05:00:34 +0000

Crystallographers visualize the dramatic protein conformational change required to transfer methyl from folate to vitamin B-12

Cautious Outlook For Instruments

nobody@acs.org("Marc S. Reisch") — 19 Mar 2012 05:00:14 +0000

Pittcon: Scientific toolmakers are wary about the year ahead

Amyloid Surprises

nobody@acs.org("Celia Henry Arnaud") — 19 Mar 2012 05:00:00 +0000

Studies hint at a structure of elusive amyloid intermediates and behavior of a fibril inhibitor

Scientists Synthesize Star-Fruit-Shaped Gold Nanoparticles

nobody@acs.org("Prachi Patel") — 15 Mar 2012 16:59:00 +0000

Nanomaterials: Particles’ shape could improve sensitivity of spectroscopic method

Single Gene Allows Scientists To Track Cells In Multiple Ways

nobody@acs.org("Katherine Bourzac") — 15 Mar 2012 05:00:00 +0000

Imaging: Cells spotted on MRI, fluorescence imaging, and nuclear-medicine scans

Microfluidic Device Separates Unlabeled Cells

nobody@acs.org("Corinna Wu") — 12 Mar 2012 16:56:00 +0000

Medical Diagnostics: A magnetic salt solution separates cell types in microfluidic device

New Sensor Listens To Drug Molecules

nobody@acs.org("Erika Gebel") — 12 Mar 2012 16:27:16 +0000

Pharmaceutical Analysis: Vibrations of a quartz crystal measure properties that could make or break drug candidates

New Sensor For Cell Metabolites

nobody@acs.org("Sarah Everts") — 12 Mar 2012 05:00:50 +0000

Chemical Biology: RNA-based detector monitors molecules in live cells

Algal Toxin Breaks Ring Record

nobody@acs.org("Journal News and Community") — 12 Mar 2012 05:00:48 +0000

Natural product has 17 contiguous polycyclic ether rings—the most of any marine algal toxin

Deciphering Caramel’s Deliciousness

nobody@acs.org("Bethany Halford") — 12 Mar 2012 05:00:43 +0000

Researchers use a combination of mass spec techniques to tease out the thousands of compounds in the sweet treat

High-Definition Dynein

nobody@acs.org("Sarah Everts") — 12 Mar 2012 05:00:43 +0000

Latest X-ray structure of the motor protein provides atomic-scale resolution

Carbon Goes Deep

nobody@acs.org("Carmen Drahl, Lauren K. Wolf") — 12 Mar 2012 05:00:00 +0000

Carnegie Institution researchers study this essential element to unlock Earth’s secrets

Algal Toxin Breaks Record

nobody@acs.org("Melissae Fellet") — 05 Mar 2012 17:53:00 +0000

Natural Products: The molecule has the largest number of contiguous polycyclic ether rings—17—of any marine algal toxin

Levitating Beads Reveal Protein Interactions

nobody@acs.org("Laura Cassiday") — 05 Mar 2012 17:18:38 +0000

Low-Cost Analysis: Simple technique detects and quantifies protein interactions with small molecules

Black Carbon Belchers

nobody@acs.org("Journal News and Community") — 05 Mar 2012 06:00:47 +0000

Cars may produce more climate-warming particles than previously thought

Multiplexed Raman microscopy

nobody@acs.org("Celia Henry Arnaud") — 05 Mar 2012 06:00:46 +0000

Tunable filter expands Raman imaging technique to multiple wavelengths simultaneously

Enterovirus 71 Exposed

nobody@acs.org("Carmen Drahl") — 05 Mar 2012 06:00:45 +0000

Structure reveals secret to blocking hand, foot and mouth virus

Metal Mesh Enables Dust Scrutiny

nobody@acs.org("Jyllian Kemsley") — 05 Mar 2012 06:00:44 +0000

Nickel screen traps dust particles, holding them in place for interrogation