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Dr. Ilka Ottleben ♥ Laborpraxis Worldwide

Dr. Ilka Ottleben


LABORPRAXIS - Mehr Effizienz für Labor & Analytik

Dr. Ilka Ottleben ist Diplom-Biologin, Schwerpunkt Molekularbiologie, und seit 2009 Redakteurin beim Fachmedium LABORPRAXIS.

Articles of the author

Fig. 1: In many laboratories, multiple sacks of consumables such as cell culture flasks, pipette tips, laboratory gloves and packaging are accumulated every day. Do we really need all of this?
Plastic Waste in Life Sciences Laboratories

Tackling Waste: 5 Steps to Less Plastic Waste in the Lab

Life sciences laboratories are another area in which plastic waste can be reduced. Approximately 5.5 million tons of plastic waste are produced every year in life sciences laboratories alone, including items like pipette tips, nitrile gloves, cell culture flasks. In the age of global waste pollution and the ubiquity of plastic in the world around us, this is definitely too much. It can’t all be changed, but improvements are possible in some areas.

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1 Cannabidiol (CBD) is a non-psychoactive cannabinoid from female hemp (cannabis)
Cannabis Analysis

Cannabis Under (Moisture) Control

The determination of moisture in cured cannabis is an indicator of microbial contamination, a key variable used to calculate other constituent results on a dry basis and required for the pressing process of extracting CBD oil from cannabis. Thermogravimetric moisture determination can provide valuable services here.

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Sartoclear Dynamics Lab is an innovative solution for laboratory-scale prefiltration and sterile filtration of mammalian cell cultures.
Clarification and sterile Filtration of Antibodies

Fast Cell Harvesting Without Using a Centrifuge

Whether employed in basic research or the production of biopharmaceuticals, monoclonal antibodies are used in an exceptionally wide range of applications. Until now, harvesting of mammalian cell cultures used to be time-consuming, especially at laboratory scale, and usually involved a centrifugation step. A new diatomaceous earth-based filtration solution now improves and accelerates this process significantly.

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Fig. 1 When a weapon was last fired and whether it was involved in a crime, can be determined by gunshot residues.
Determining if and when a handgun has been fired

Gunshot Residue Dating

To clarify whether and when a handgun was fired, forensic scientists search for and analyze Gunshot Residue (GSR) deposits. One highly interesting aspect of GSR is the presence of volatile organic chemical residues, which can offer clues as to when a weapon was fired. An innovative extraction technique based on Headspace Sorptive Extraction (HSSE) and Gerstel Twister has now been shown to extract additional information from spent cartridges.

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It is a long way from motorization to true automation in imaging.
Microscopy & Automation

Long Way from Motorization to True Automation

Rapid developments at all levels of microscopy, such as contrast, illumination, resolution, signal detection and data processing have occurred over the last decades and there is reason to expect that these advances will continue. However, severe limitations in accuracy, reproducibility and throughput are caused by the involvement of humans in all steps of the imaging workflow. It also poses a significant burden and workload for the researcher. To improve this situation is the biggest challenge in automation.

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