Navigation Links
The bombardier beetle, power venom and spray technologies
Date:4/1/2008

The bombardier beetle is inspiring designers of engines, drug-delivery devices and fire extinguishers to improve spray technologies, writes Andy McIntosh, from Leeds University, and Novid Beheshti, of Swedish Biomimetics 3000 Ltd, in Aprils Physics World.

The bombardier beetle, found mainly in Africa and Asia, is remarkable in that it can fire a powerful jet of hot, toxic fluid to fight off predators such as birds and frogs. While the chemical reaction that makes the venom has been understood for some time, the actual power behind the venomous squirt, which can travel as far as 20cm, has been cause for speculation.

Quantities of hydroquinone and hydrogen peroxide gases build up in the beetles abdomen but, when necessary for defence, get mixed together in a connected combustion chamber to produce toxic benzoquinone. This hot fluid is then fired off at force in the face of enemy predators.

The key to the beetles powerful defensive trick is in its combustion chambers inlet (or entry) and exit valves. The inlet valve opens to receive the chemicals, which begin to boil as soon as they meet, and closes when a sufficient amount of gas has been received.

As the gases react together, they generate heat and increase the pressure in the closed chamber. When the pressure reaches a critical point, the end of the exit valve is forced open and the hot fluid is ejected as a powerful burst of toxic steam in a process known as "flash evaporation".

Once the gas is released, the exit valve closes, the inlet valve opens and the chamber fills again, preparing for the next venomous ejection.

The research team at the School of Process, Environmental and Materials Engineering at Leeds University has now managed to replicate how the bombardier beetle fires hot venom. In a series of experiments using just water (rather than venomous liquids), McIntosh and his team have been able to fire pulses of hot spray distances of up to 4 m an
'/>"/>

Contact: Joe Winters
joseph.winters@iop.org
44-020-747-04815
Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology news :

1. Continents loss to oceans boosts staying power
2. Wildcat Power Cord repairs cruciate ligament in dairy cows knee
3. Fujitsu Combines Capacity, Performance and Power Efficiency Into the Industrys First 320GB 7200 RPM 2.5" Sata Hard Disk Drive
4. The surprising power of the pill
5. Work with power grids leads to cell biology discovery
6. New twist on lifes power source
7. U of I researcher develops power-packed soy breakfast cereal
8. Genetic tags reveal secrets of memories staying power in mice
9. Powerful yet reliable proteomics techniques are the focus of a new methods book
10. Gene discovery made easier with powerful new networking technique
11. Department of Energy putting power in the hands of consumers through technology
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/24/2015)... , Feb. 24, 2015 Research and ... the addition of the "Global 2D Gesture ... The analysts forecast the Global ... CAGR of 32.12% over the period 2014-2019 ... in non-traditional sectors is one of the major ...
(Date:2/12/2015)... Minn. , Feb. 12, 2015   ... company specializing in clinical study management systems, has ... Program , further distinguishing iMedNet ... Clinical Research Organizations (CROs) and healthcare consultants.  Building ... support, prospective customer referrals and numerous co-marketing opportunities), ...
(Date:2/5/2015)... Carolina , 5. Februar 2015 /PRNewswire/ ... als spezialisiertes Logistikunternehmen und hat eine neue ... klinische Logistikfirma (Clinical Logistics Organization – CLO) ... neuen Kampagne lautet First , mit ... Foto: http://photos.prnewswire.com/prnh/20150205/173753 ...
Breaking Biology News(10 mins):Global 2D Gesture Recognition Market 2015-2019 with Cognitec Systems, CogniVue, eyeSight Mobile Technologies & PointGrab Dominating 2MedNet Solutions Announces Key Enhancements To Its iMedNet Partner Program 2Marken startet Kampagne mit Patienten im Mittelpunkt 2Marken startet Kampagne mit Patienten im Mittelpunkt 3
... to a report issued last week by UNAIDS, access ... worldwide. But Dr. Groesbeck Parham, gynecologic oncologist and ... Center for Infectious Disease Research in Zambia (CIDRZ) warns ... dying of cervical cancer unless they have access to ...
... at The University of Manchester have developed a new x-ray ... and human cancers more effectively. Professor Robert Cernik and ... colour 3D X-ray system that allows material at each point ... work is reported in the latest issue of The Journal ...
... for commercial genetic testing is on the rise and ... (MGH) physician. In the December issue of Obstetrics ... testing is poorly regulated and may present potential pitfalls ... that are being offered have no proven clinical validity ...
Cached Biology News:Women with AIDS face cervical cancer threat 2New X-ray technique targets terrorists and tumors 2Direct-to-consumer advertising for genetic tests concerns physicians and may mislead patients 2
(Date:2/26/2015)... YORK , Feb. 26, 2015 S&P ... Factual Stock Report coverage on MabVax Therapeutics Holdings ... (MBVX) is a clinical stage biotechnology company focused on ... unmet medical needs in the treatment of cancer. MabVax ... based on the protective immune responses generated by patients ...
(Date:2/26/2015)... , Feb. 26, 2015   Regulus Therapeutics ... company leading the discovery and development of innovative medicines ... , Ph.D., President and Chief Executive Officer of Regulus, ... Company 35 th Annual Healthcare Conference on Wednesday, ... is being held at the Boston Marriott Copley Place.  ...
(Date:2/26/2015)... 26, 2015  NuGene International, Inc. ("NuGene") (OTCQB: ... skin and hair rejuvenation, has announced that it ... record for investor relations and strategic communications. ... sales and diversification strategies – and we need ... shareholders," stated Ali Kharazmi CEO of NuGene when ...
(Date:2/26/2015)... Innovation is more urgent than ever. Radical business ... world and transforming global markets in industry after ... care, disruption is constantly underway. , As technology ... the foundations of established business models, large-scale innovation ... the next wave of mega-change. , This wave ...
Breaking Biology Technology:S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 2S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 3S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 4S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 5Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 2Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 3NuGene International, Inc. Selects Capital Market Relations for Strategic Investor Relations 2NuGene International, Inc. Selects Capital Market Relations for Strategic Investor Relations 3One Million Acts of Innovation Canada Creates Partnership with The Economist Events’ Innovation Forum 2
... Cord Blood America, Inc. (OTC Bulletin Board: CBAI), ... http://www.cordblood-america.com ) focused on bringing ... nationwide and internationally, today said it strongly supports legislation ... would require the Secretary of Health and Human Services ...
... VA Research is dedicated to restoring injured Veterans ... families, communities, and work places. For those who ... complications such as diabetes, VA researchers are designing ... technologies such as robotics, tissue engineering, and nanotechnology, ...
... CVD ) today reported earnings for its first quarter ... $0.76 per diluted share in the first quarter of 2008 ... gain on sale). "On a consolidated basis, first quarter net ... operating margin was 12.7%, and diluted EPS of $0.63 met ...
Cached Biology Technology:Cord Blood America Supports Effort in Congress to Inform on Value of Umbilical Cord Blood Stem Cell Storage 2Video: Turning Hope Into Reality - VA Research to Restore Veterans' Abilities 2Video: Turning Hope Into Reality - VA Research to Restore Veterans' Abilities 3Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 2Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 3Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 4Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 5Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 6Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 7Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 8Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 9Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 10Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 11Covance Reports First Quarter Revenue of $441M and EPS of $0.63; Updates Full Year Financial Targets 12
... The electrophoretic mobility shift assay (EMSA) ... interactions. Often referred to as gel shift ... on the principle that when subjected to ... a DNA-protein complex. The Pierce LightShift Chemiluminescent ...
... Lab Quantas unique combination of Coulter ... resolution capabilities and accurate cell counting. ... wavelengths, including UV, allowing flexible fluorochrome ... applications typically only achievable with larger, ...
... Genome-pULSe Kit delivers a novel procedure for ... labeling of whole genome DNA from small ... provide a quick and highly reproducible amplification ... consists of a REPLI-g Mini Kit module ...
... using PULSin may be superior to transfection ... traditional transfection, with PULSin you can study ... time course of proteins in cells. Likewise, ... information than traditional RNA interference experiments. ...
Biology Products: