Navigation Links
Quantum of sonics: Bonded, not stirred
Date:7/26/2013

Researchers at McGill University have discovered a new way to join materials together using ultrasound. Ultrasound sound so high it cannot be heard is normally used to smash particles apart in water. In a recent study, the team of researchers, led by McGill professor Jake Barralet, from the faculties of Dentistry and Medicine, found that if particles were coated with phosphate, they could instead bond together into strong agglomerates, about the size of grains of sand. Their results are published in the journal Advanced Materials.

Nanoparticles are extremely useful but are difficult to contain because they are invisible and are easily carried in the air. They can also enter the body easily, creating a concern for the safety of industrial workers and the public. A new method to stick nanoparticles to one another into something you can handle safely with your fingers, without changing their useful properties, could have implications for a range of everyday applications.

"Using ultrasound is a very gentle low-energy process compared to traditional furnaces and welding, so even active drugs and enzymes can easily be built into carriers to make new hybrid materials," says Prof. Barralet, lead investigator of the study and Director of Research in the Department of Surgery at the Research Institute of the McGill University Health Centre (RI-MUHC).

Ultrasound induces short-lived bubbles (known as cavitation) that create, for a fraction of a microsecond, when they collapse, 'hotspots' of thousands of degrees. Because this bubble formation is a random and infrequent process, scientists have struggled with ways to harness this incredibly powerful phenomenon for assembling materials rather than for destroying them. The key to the McGill team's finding was developing a way to localize cavitation at the nanoparticles' surface. This led to the discovery that their phosphate coating interacts with unstable radicals created at these hotpots
'/>"/>

Contact: Cynthia Lee
cynthia.lee@mcgill.ca
514-398-6754
McGill University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Quantum engines must break down
2. Researchers use graphene quantum dots to detect humidity and pressure
3. Quantum dots deliver Vitamin D to tumors for possible inflammatory breast cancer treatment
4. Quantum communication: Each photon counts
5. High Brightness Tetrapod Quantum Dots Developed
6. Good news for nanomedicine: Quantum dots appear safe in pioneering study on primates
7. Stirred not mixed: How seawater turbulence affects marine food webs
8. Portable diagnostics designed to be shaken, not stirred
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/22/2015)... May 22, 2015 According to ... Solution (2D, 3D, Thermal, Emotion, Forensic), by Software (Middleware, Databases), ... and Utilities, Consumer and Home) - Global Forecast to ... from $2.77 Billion in 2015 to $6.19 Billion by ... Browse 79 market data Tables and   43 Figures ...
(Date:5/20/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... 3D-ID LLC, a company engaged in biometric identification is ... technology portion of the recently awarded TIES (Technical Information ... the Army. 3D-ID LLC has a suite ... enforcement and security agencies. Gino Pereira ...
(Date:5/18/2015)... Sweden , May 18, 2015 ... fingerprint sensors FPC1020, FPC1025, FPC1145, FPC1155 and FPC1035 from one ... from June until and including Q3 2015 and the sensors ... . Communicated order values for 2015 hereby amount to ... for Q1 2015 of 140 MSEK and a number of ...
Breaking Biology News(10 mins):Facial Recognition Market Worth $6.19 Billion by 2020 2Facial Recognition Market Worth $6.19 Billion by 2020 3NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 2NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 3Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2
... in preventing some of the stresses of open surgery on ... and organ dysfunction. Laparoscopy is a type of surgery in ... By adding another gas to the carbon dioxide used ... University Medical Center have found they can preserve more normal ...
... that are associated with the health of the human ... scientists from 63 centres in Europe and Australia sheds ... The new findings provide hope for better treatment ... and asthma. In the past it has been difficult ...
... FORT COLLINS, COWild Malus orientalis species of wild ... applesare native to the Middle East and Central Asia. ... M. orientalis varieties from Georgia and Armenia ... narrows the large population and establishes a core collection ...
Cached Biology News:Gas improves blood flow and organ status during minimally invasive surgery 2New genes for lung disease discovered 2Understanding apples' ancestors 2
(Date:5/28/2015)... 28, 2015 Natera, Inc., a leader ... published in Ultrasound in Obstetrics & Gynecology ... non-invasive prenatal test (NIPT) can identify a complete ... A study based upon data collected in ... in about 1 in 1,000 pregnancies, although other ...
(Date:5/28/2015)... 2015 BioNorth Texas (BioNorthTX), an ... the life sciences industry in northern region of ... at The Foundry in Dallas on April 27, ... together a broad spectrum of biotech professionals from ... early successes in partnering with key life sciences ...
(Date:5/28/2015)... RXi Pharmaceuticals Corporation (NASDAQ: RXII ), ... therapeutics, primarily in the areas of dermatology and ophthalmology, ... 26 million units at a price to the public ... $10.4 million. Each unit consists of (i) one share ... to purchase 0.50 of a share of common stock ...
(Date:5/28/2015)... , May 28, 2015  GenVec, Inc. (Nasdaq: ... Douglas J. Swirsky , will present a company ... 11 a.m. EDT on Thursday, June 4, 2015. ... Swirsky,s presentation will be available at the following link:  ... on GenVec,s website.  To access, visit www.genvec.com , ...
Breaking Biology Technology:First Confirmed Detection of a Complete Molar Pregnancy with Cell-Free DNA Test 2First Confirmed Detection of a Complete Molar Pregnancy with Cell-Free DNA Test 3BioNorthTX Holds Inaugural Board of Directors Meeting 2BioNorthTX Holds Inaugural Board of Directors Meeting 3RXi Pharmaceuticals Announces $10 Million Public Offering of Common Stock and Warrants 2RXi Pharmaceuticals Announces $10 Million Public Offering of Common Stock and Warrants 3GenVec To Present At The Jefferies Healthcare Conference 2
... & ... Compliance, ... health conditions that require intra-vaginal drug delivery and,the abundance of intravaginal ... of women find their current treatment,options "unacceptable" or "intolerable". The survey, ...
... Underway, MONTVALE, N.J., May 13 Synvista Therapeutics,Inc. ... in a 160-patient Phase 2 study,of alagebrium in patients ... the A.G.E. [Advanced Glycation End Product],Breaker Alagebrium in Diastolic ... assess the effect of six months,of oral treatment with ...
... Palatin Technologies,Inc. (Amex: PTN ) today reported ... 31, 2008 and announced new strategic objectives as ... and development,programs. Palatin will continue to develop products ... obesity, and,cardiovascular fields, including acute hospital care products ...
Cached Biology Technology:72% of Women Are Dissatisfied With Their Current Treatment of Vaginal Infection, Survey Finds 2Synvista Therapeutics Announces Initiation of the BREAK Study of Alagebrium for Diastolic Heart Failure 2Synvista Therapeutics Announces Initiation of the BREAK Study of Alagebrium for Diastolic Heart Failure 3Synvista Therapeutics Announces Initiation of the BREAK Study of Alagebrium for Diastolic Heart Failure 4Palatin Technologies Announces New Strategic Objectives and Reports Third Quarter 2008 Financial Results 2Palatin Technologies Announces New Strategic Objectives and Reports Third Quarter 2008 Financial Results 3Palatin Technologies Announces New Strategic Objectives and Reports Third Quarter 2008 Financial Results 4Palatin Technologies Announces New Strategic Objectives and Reports Third Quarter 2008 Financial Results 5Palatin Technologies Announces New Strategic Objectives and Reports Third Quarter 2008 Financial Results 6Palatin Technologies Announces New Strategic Objectives and Reports Third Quarter 2008 Financial Results 7
... • Holds 0.1 mL - 25 mL pipets ... Also accommodates most standard square or round pipet cans. ... four compartments, each 76 mm W x 76 mm ... 11 3/8 ins.). Overall dimensions: 89 mm W x ...
...
CoverWell imaging chamber gasket with adhesive, one chamber, 20 mm diameter, 1.0 mm deep *set of 40* Cell Biology Imaging Tools and Accessories Microscope Slide Accessories...
...
Biology Products: