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Archive for October, 2014

Laboratory Standard Shot DYK Blog

Did you know: How best to clean your workstation?

 

 

This is the 10th in our ‘Did you know’ series of articles introducing things you may not know about the Whitley range of products and services – read on and you may find out something about your workstation that could make your working life easier.

We regularly receive enquiries from customers with regard to which disinfectants can be safely used inside Whitley Workstations. Although it is not practicable to evaluate every available product, we have tested the materials compatibility of several sporicidal disinfectants and can now provide comprehensive advice on this topic.

 

 

How often should I clean my workstation?

DWS recommend that as part of the daily checks, users ensure that the workstation is free from spillage and cleaning carried out as necessary. Prior to having your workstation serviced, however, it may be necessary for it to be decontaminated.

Which disinfectants have DWS tested?

  • Spor-Klenz – peracetic acid (approx 0.1%) + hydrogen peroxide (approx 1.0%) – “ready to use” product, tested without further dilution.
  • Chemgene HLD4H – quaternary ammonium compounds (approx 1%) + chlorhexidine digluconate (approx 1%) – “ready to use” product, tested without further dilution.
  • Safe Hospital – hypochlorous acid – “ready to use” product, tested without further dilution.
  • Tristel Fuse – chlorine dioxide (approx 1%) – prepared from concentrated components according to manufacturer’s instructions.

For more information on these tests, please see the appendices of your Whitley Workstation user manual.

 

Which of the above products are OK for use in a Whitley Workstation?

Our tests demonstrated that each of these formulations is satisfactory for use in Whitley Workstations and will not cause any damage when used in accordance with the manufacturer’s recommendations.

 

What if I want to use a cleaning agent not on the above list?

Other disinfectants containing the active ingredients listed above, at similar concentrations to those shown, can also be safely used inside Whitley Workstations. If you wish to use a disinfectant containing active ingredients not listed here, please contact us for advice before proceeding.

 

Why should I contact DWS for advice – will any damage not be covered under my warranty?

Unfortunately, we cannot cover under the equipment’s warranty any damage caused to a Whitley Workstation as a result of exposure to products that have not been approved by us.

 

Can I use Virkon as my preferred sanitising solution?

After a thorough study lasting 20 weeks, we concluded that the presence of any uncovered containers of Virkon in anaerobic and variable atmosphere workstations leads to the degradation of stainless steel, brass and some other metal components. The effect is more considerable when oxygen is present in the selected gas mixture. These conclusions are supported by technical information available on the Virkon manufacturer’s website and independent observations by an Institute of Materials metallurgist. If Virkon is the preferred sanitising solution these adverse effects can be minimised by ensuring that Virkon within any workstation is always kept in a covered vessel when not in use.

 

OK, so what’s the best way to clean the acrylic parts of a Whitley Workstation?Labdet100 Blog

The transparent and/or white acrylic on the inside and outside of the Whitley Workstation System may be swabbed with a 2% solution of Labdet 100 (DWS – stock code D00003) in warm water and dried afterwards with a soft clean cloth. In the case of culture spillages then any of the disinfectants listed above solution should be applied to the spillage and left for 30 minutes. It should then be mopped.

 

Never use any solvent on the acrylic surfaces of the workstation. Use only water and a mild detergent solution (i.e. Labdet 100 2% solution) as a cleaning agent.

 

What if the spillage leaks underneath the floor of the workstation?

If spillage is not contained on the working surface then access underneath this area will be required in all Whitley Workstations except the DG250. Some workstations require the removal of retaining bolts before the floor can be lifted up or pivoted for cleaning underneath.

If liquid has been spilled upon the Anotox and catalyst sachets they should be removed, dried and/or replaced.

 

How can I deal with scratches on the acrylic plastic surface of my workstation?

Scratches may be removed by gently polishing the surface with ‘DURAGLIT WADDING’ followed by wiping with a soft clean cloth. Deep scratches may require the use of Wet and Dry abrasive paper used wet, followed by polishing with ‘DURAGLIT’ – seek advice from Don Whitley Scientific Limited or our authorised agents overseas.

 

How can I clean the sleeves on my workstation?Sleeve Kit-Components DYK Blog

The white sleeves used on all Whitley Workstations may require cleaning after periods of extended use. There are a number of options for cleaning and some recommendations listed below:

  • Wipe with a mild detergent
  • Wash or dry-clean with a detergent up to 75ºC
  • For disinfection use Sodium Hypochlorite (at no more than 1000ppm active Chlorine) or any of the disinfectants listed above
  • Do not use Biological or Phenolic based cleaners
  • Wash and dry completely before storage
  • Some surface wrinkling may occur.

 

If you have any remaining concerns about disinfectants for use in Whitley Workstations, please get in touch with our sales team:

Tel: 01274 595728

Or

Email: sales@dwscientific.co.uk

 

Wear it Pink

Wear it Pink Day

Friday, 24th October was ‘Wear it Pink for Breast Cancer Campaign’ day and thanks go to all those in Shipley who made an effort to come suitably pink-attired. Thanks also to those who provided/baked cakes and for the donations made – we raised £101.

 

Whitley H35 Hypoxystation

Whitley H35: Used in the Fight against Pancreatic Cancer

Installation of H35 at MD Anderson

 

Widely regarded as the best cancer hospital in the USA, The MD Anderson Cancer Centre at the University of Texas currently uses a Whitley H35 Hypoxystation to contribute to their work focussed on pancreatic cancer.

 

 

Dr. Rafal Zielinski had this to say about their workstation:

“The hypoxia station we have purchased is being used for studies on STAT and HIF oncogenic transcription factors in tumours with major focus on pancreatic cancer. It is well-established that these tumours are highly hypoxic therefore experiments performed in oxygen-limited conditions better recapitulates the natural environment of the cancer, allows better understanding of the physiologic role of STATs and HIFs and enables more accurate evaluation of experimental therapeutic strategies. We also use chronic hypoxia to study metabolism of the cancer cells and to design optimal therapeutic approaches using new inhibitors of glycolysis.”

Then and Now

Consistent growth. Just what you need for your anaerobes.

From our first workstation nearly 40 years ago, our product range continues to grow and grow.

Our latest enterprise, the A95 Anaerobic Workstation – as featured in the official IBMS 2015 diary – has four unique gloveports that double as sample transfer systems, a huge incubation capacity, a large integral airlock, an intuitive full-colour 7” touchscreen, network connectivity, data downloading and anaerobic conditions monitoring.

For more information please contact us:

e: sales@dwscientific.co.uk

t: +44 (0)1274 595728.

Introduction to Clinical Anaerobic Bacteriology

Practical Guide to Clinical Anaerobic Bacteriology

Eighteen months ago, Don Whitley Scientific played an integral role in producing An Introduction to Clinical Anaerobic Bacteriology. This unique guide is being very well-received by scientists in laboratories nationwide. It enables the reader to isolate and identify 12 commonly occurring clinically important anaerobic bacteria. It contains 60 pages printed on waterproof, tear-resistant synthetic paper to withstand regular use at the bench and is illustrated with stunningly detailed colour photographs and attractive reference tables.

Designed to fill a gap in the practical reference materials currently available to support clinical laboratory practice for microbiologists, the publication was written by Professor Michael W D Wren, MBE FIBMS, former consultant Biomedical Scientist in the microbiology department, University College Hospital, and visiting Professor at The University of Westminster. With a foreword by Professor Brian Duerden, Emeritus Professor of Medical Microbiology at Cardiff University and input from Dr Don Whitley, Chairman and founder of Don Whitley Scientific Limited, considerable expert knowledge has been combined to make this the most up-to-date reference guide for the modern clinical laboratory.

Images were kindly supplied by the Anaerobe Reference Unit, Cardiff.

For further information, or to order your copy, please contact us at sales@dwscientific.co.uk or call us on 01274 595728.

 

A research at QUB using the Whitley A45 Workstation

Queens University Belfast

Groundbreaking research conducted at Queen’s University Belfast’s School of Pharmacy and the Centre for Infection and Immunity has led to new knowledge about cystic fibrosis (CF) that is being applied to patient care.

This video, produced by Video Services at QUB, explains new clinical trials where CF patients are participating in a clinical study aimed at bringing medicines and treatments to people faster. An important recent finding was that the lungs of people with CF are host to many different types of bacteria. The team are working to identify which ones may cause problems for people with CF. As part of this identification project, patient samples are processed in the laboratory in anaerobic workstations (the video shows staff using Whitley A35 and A45 Workstations).

The university is also working on better ways of delivering drugs to CF lungs, including the use of nanoparticles.

 

Smasher XL

New Supersize Peristaltic Blender – Smasher XL

Smasher XL is a high performance paddle blender that is ideal for large volume samples. It can blend a 1 x 4 litre sample bag or 2 x 1.5 litre bags simultaneously. The patented ‘SMASH’ effect (developed to avoid jams) is applied to crush samples prior to peristaltic homogenisation taking place, ensuring the resulting suspension is representative of the sample’s microbial population.

Features

  • Four paddes provide perfectly homogenised suspensions, ensuring reproducible microbiological results.
  • Blending capacity >4kg / 1 x 3.750g bag or 2 x 1.500g bags / 1500 to 4000ml in blender bags
  • Easy to clean as the door and paddles can be removed (without tools).
  • Safe to operate – if the door is opened the paddles stop immediately and are realigned to aid removal of large volumes.
  • A 250ml waste drawer is fitted into the door to facilitate cleaning should any leaks occur.
  • Options include a wheeled trolley (with additional large volume waste drawer) so Smasher XL is easy to move around the laboratory to where you need it.

This product is ideal for processing bulk samples such as powdered milk, chicken, minced meat, cocoa and pet foods.

For more information please contact us on 01274 595728 or email sales@dwscientific.co.uk

Whitley A35 Anaerobic Workstation

New Adjustable Height Workstation Trolley

NEW FROM DON WHITLEY SCIENTIFIC …

Adjustable Height Trolley for Whitley A35/H35 Workstations

Now you can determine the working height of your Whitley Workstation when mounted on your new trolley.

This new trolley allows you to adjust the height to a more comfortable, convenient working position to suit the needs of your laboratory. This feature is particularly useful for those laboratories where staff prefer to work in a sitting position.

The trolley is extremely durable, strong and easy to clean.

Features:

  • The height adjusts from 600 to 900 mm with 50 mm graduated steps
  • Rated to carry up to a 240kg equal load
  • White Trespa Athlon top that has high impact and chemical resistance
  • Made from quality, kite-marked steel
  • Sand blasted and painted under heat to ensure a tough, long-lasting finish that will not crack, chip or peel
  • 10 year guarantee against normal usage failure.

This new trolley is available for the Whitley A35 Anaerobic Workstation and the Whitley H35 Hypoxystation, however if you require an adjustable trolley for other Whitley Workstations, please contact us on sales@dwscientific.co.uk or telephone 01274 595728

To order, please quote Order Code: A06704