September 2019

WITec alpha 300 Ri wins SelectScience Seal Of Quality after many positive customer reviews

Having already received the SelectScience Scientists' Choice Award, the inverted Raman microscope alpha300 Ri has also now been awarded the Bronze Seal of Quality after receiving many positive reviews from customers.

SelectScience® Seals of Quality recognize products that have consistently received the best reviews from scientists around the world and are designed to further assist scientists in making important purchasing decisions for their laboratories.

We at WITec are very grateful to all our customers who wrote the extensive and positive reviews of our alpha300 Ri and we hope to receive many more in the future.

In an interview with SelectScience, Marketing Director Harald Fischer explains why the SelectScience review program is a great tool for WITec: "Our sales force can direct potential customers to SelectScience, so that they can learn how happy other customers are with our products. [...] I think the reviews are very important, because [...] the scientists can learn from each other." See the full interview on SelectScience.net: www.selectscience.net/SelectScience-TV/Videos/&videoID=4651.


Learn more about the WITec alpha300 Ri.

Read customer reviews for the alpha300 Ri on SelectScience.net.


July 2019

2019 WITecペーパーアワード



The Paper Award GOLD

The oldest trees are several thousand years old. How do they reach such an impressive age? During heartwood formation, many trees produce substances which protect them against bacteria, fungi or insects. Martin Felhofer from the University of Natural Resources and Life Sciences in Vienna, Austria, receives the Gold Paper Award 2019 for his research on such impregnating substances, together with his colleagues Batirtze Prats-Mateu, Peter Bock and Notburga Gierlinger. Using confocal Raman imaging, they revealed the sub-cellular distribution of pinosylvins and lipids in different parts of pine tree sections. Both compounds co-localized, but their ratio changed during heartwood formation. While pinosylvins dominated in the heartwood, the sapwood contained mainly lipids. Spruce sapwood usually doesn’t produce pinosylvins. Nevertheless, in vitro impregnation of spruce sapwood with pine extract reproduced the distribution patterns from pine.  Thus, the authors hypothesized that the “symbiotic relationship between pinosylvins and lipids” is important for the impregnation process during heartwood formation and protection of the wood against decay.


The Paper Award SILVER

Traces of early microbial life on Earth can be found in the form of their biosignatures preserved in sedimentary rocks. Valuable information on the origin of life can thus be gained from the characterization of sediments. However, deciding if the organic material in sediments is actually of biological origin is not always straightforward. Matthew S. Dodd from University College London, UK, receives the Silver Paper Award 2019 for investigating the origins of granular iron formations (GIFs) together with his colleagues Dominic Papineau, Zhenbing She, Marilyn L. Fogel, Sandra Nederbragt and Franco Pirajno from research institutions worldwide. The origins of GIFs continue to be debated. There are publications that provide support for theories of sediment reworking, mineral precipitation or biological origins. Together with his colleagues, Matthew Dodd characterized Palaeoproterozoic granules from various locations around the world (China, USA, Canada and Australia) using Raman imaging and other techniques. They discussed their findings with respect to potential origins of the granules and found that biological processes and chemically-oscillating reactions played a key role in GIF formation in all locations, although other processes may have contributed as well. For example, some GIFs originated from diagenetic reactions, in which organic matter was oxidized while sulphate or ferric iron was reduced by sulphate- or iron-reducing bacteria. The authors concluded that, “As such, granules have excellent potential to be considered as promising biosignatures for studying Precambrian biogeochemistry, as well as astrobiology.”


The Paper Award BRONZE

Optoelectronic devices, such as light-emitting diodes, detectors, satellites or solar cells, are often produced from gallium nitride (GaN) due to the advantageous properties of this semiconducting material. Methods for growing high-quality GaN crystals are thus required and defects in the crystals need to be detected efficiently and without damaging the sample. Joonas T. Holmi from Aalto University in Finland receives the Bronze Paper Award 2019 for showing how 3D Raman imaging can characterize threading dislocations (TDs) in α-GaN crystals, together with his colleagues Bakhysh H. Bairamov, Sami Suihkonen and Harri Lipsanen. TDs cause local stress in the α-GaN crystal, a defect that is not visible in a wide-field image. However, the stress field causes some peak shifts in the Raman spectrum. Quantifying the Raman peak shift of E2H at each position on the crystal surface made it possible to locate the distortions and estimate the TD density. By recording z-stacks, the propagation of the stress field into the crystal volume could be visualized in 3D. The described method could even characterize the TDs further, distinguishing between edge a-type and mixed a+c-type TDs and the authors discuss how the method can be extended to also identify screw c-type TDs. They conclude by recommending 3D confocal Raman imaging for characterizing TD types in ammonothermally grown α-GaN crystals.


The WITec Paper Award 2019 Winners

  • GOLD: Martin Felhofer, Batirtze Prats-Mateu, Peter Bock, Notburga Gierlinger (2018) Antifungal stilbene impregnation: transport and distribution on the micron-level. Tree Physiology 38, pp. 1526-1537. doi.org/10.1093/treephys/tpy073
  • SILVER: Matthew S. Dodd, Dominic Papineau, Zhenbing She, Marilyn L. Fogel, Sandra Nederbragt, Franco Pirajno (2018) Organic remains in late Palaeoproterozoic granular iron formations and implications for the origin of granules. Precambrian Research 310, pp. 133-152. doi.org/10.1016/j.precamres.2018.02.016
  • BRONZE: Joonas T. Holmi, Bakhysh H. Bairamov, Sami Suihkonen, Harri Lipsanen (2018) Identifying threading dislocation types in ammonothermally grown bulk α-GaN by confocal Raman 3-D imaging of volumetric stress distribution. Journal of Crystal Growth 499, pp. 47-54. doi.org/10.1016/j.jcrysgro.2018.07.024

For a list of all previous Paper Award winners, please visit www.WITec.de/paper-award.

High-resolution pictures of the award ceremonies can be downloaded.
Gold: www.witec.de/assets/Uploads/PaperAward2019-Gold.jpg
Silver: www.witec.de/assets/Uploads/PaperAward2019-Silver.jpg
Bronze: www.witec.de/assets/Uploads/PaperAward2019-Bronze.jpg

WITec announces the Paper Award 2020

Scientists from all fields of application are invited to participate in the Paper Award 2020 (www.WITec.de/paper-award). Articles published in 2019 in a peer-reviewed journal that feature data obtained with a WITec microscope can be submitted to papers@WITec.de by January 31st, 2020. WITec is looking forward to receiving many outstanding publications again.

The winners
Gold (top): From left to right: Co-author Peter Bock, first author Martin Felhofer, senior author Notburga Gierlinger and WITec sales manager Thomas Olschewski.
Silver (middle): Team leader Dominic Papineau (middle) and WITec representative Adrian Knowles (left). First author Matthew Dodd (right) is now working in China.
Bronze (bottom): From left to right: Co-author Bakhysh Bairamov, first author Joonas Holmi and WITec representative Kim Grundström.


June 2019

Fernando Vargas appointed new Vice President of WITec Instruments Corporation

WITec GmbH, leading manufacturer of Raman and scanning-probe microscopes, has named Dr. Fernando Vargas as Vice President of WITec Instruments Corporation, its USA-based subsidiary, and Area Manager of the USA market.

As a longtime WITec team member with a background in physics, Vargas has extensive experience in both the scientific application and strategic sales of WITec microscopy solutions. He has served for years as the Area Manager for Latin America and will continue to do so in addition to his new roles. As VP and Area Manager for the USA, Vargas will ensure that WITec continues to expand its presence as a manufacturer of high-quality confocal Raman microscopes in the United States and builds on the strong record of effective communication with the scientific community and industry established by the WITec Instruments Corp. team in Knoxville, Tennessee.

“Fernando Vargas will bring wide-ranging expertise to our USA operations while being integral to our headquarters here in Germany. We’re excited to further the development of our market visibility and customer base in the world’s largest national economy,” says Dr. Joachim Koenen, CEO of WITec.


Dr. Fernando Vargas
VP WITec Instruments Corp., Area Manager USA and Latin America
Lise-Meitner-Str. 6
89081 Ulm, Germany
Tel: +49 (0) 731 140700

New Vice President of WITec Instruments Corporation and Area Manager for USA and Latin America


March 2019

WITec alpha300 Riが2019 Scientists' Choice賞を受賞

WITec は、Spectroscopy分野で2019 Scientists' Choice賞を受賞したことをお知らせします。

SelectScience社は、2019 Scientists' Choice賞の受賞社/製品を、3月20日に、米ペンシルベニア州フィラデルフィアで開催された国際会議 Pittcon 2019で発表しました。

毎年発表されている Scientists' Choice賞は、業界に違いをもたらすラボ製品やメーカーを表彰するものです。SelectScience社では、2007年にScientists' Choice賞を開始しており、研究者が最高のラボ製品について意見を表明できる場となっています。WITec alpha300 Ri 倒立ラマン顕微鏡は、SelectScience.netの世界中の読者である研究者からお気に入りの製品に直接投票の結果、受賞が決定しました。


Dr. Joachim Koenen, President and managing director of WITec, expressed his joy about the award in Philadelphia and said: "We are extremely grateful that so many scientists voted for us and contributed their experience with our microscope series. That's what makes the award so special for us."

Harald Fischer, WITec Marketing Director, who accepted the award in the USA together with Koenen, added: "This award is a clear endorsement of the success of our innovation strategy and shows that our 3D Raman imaging products are effective and compelling." Fischer also thanks SelectScience: "The platform has encouraged and supported us in bringing our innovations closer to a wider range of laboratory users, and we’re delighted to see this enthusiastic response.”

WITec’s alpha300 series pioneered and continues to define fast Raman imaging. The inverted beam path of the alpha300 Ri enables Raman excitation and acquisition from below, which is ideal for rapid and repeatable investigations of cuvettes, Petri dishes and other standardized liquid sample container formats. The motorized sample stage also facilitates the mounting of environmental enclosures and other accessories. Researchers in life sciences, geoscience, pharmaceutics and a wide range of other fields can benefit from its versatility in sample handling.

Internet product page: https://www.witec.de/products/raman-microscopes/alpha300-ri-inverted-confocal-raman-imaging/

The WITec team after the Scientists' Choice Award Ceremony at Pittcon in Philadelphia. (l-r. Sasha Boljanovic, CEO WITec Instruments Corp. USA, Harald Fischer, WITec Marketing Director, Dr. Joachim Koenen, WITec President and Managing Director, Dr. Fernando Vargas, WITec Area Manger Latin-America).


March 2019

ParticleScout- 微粒子の迅速検出、分類および識別のための新しい分析ツール


ラマンイメージングと相関顕微鏡のリーディングカンパニーであるWITec GmbHは、alpha300ラマン顕微鏡シリーズの革新的な粒子分析ツールであるParticleScout(パーティクルスカウト)を発表しました。素早く簡単に粒子を見つけ測定し、分類、定量化、同定することを可能にします。


ParticleScoutは先ず、粒子を見るために明視野および暗視野照明で試料を調査することから始まります。 特徴的な機能である画像連結機能は、多くの測定領域を組み合わせて大領域の詳細概要を得ることができ、多焦点合成機能を使用すると、大きな粒子を鮮明にレンダリングして正確な輪郭認識を行うことができます。


ラマンスペクトルを評価し、対応する粒子を手動で、またはシームレスに統合されたWITec TrueMatchラマンデータベースソフトウェアを使用して同定することができます。





WITecの共同創業者のヨハヒム・コーネン博士(Dr. Joachim Koenen)は、次のように話しています。「世界的な環境問題として関心を集めているマイクロプラスチックの話題が、当社の製品群を拡大しています。ラマン分光法は有害な粒子を迅速に識別するための非常に有用なツールです。当社は、ラマン顕微鏡による粒子解析において、これまでにないレベルのスピードと使いやすさを提供します。 ParticleScoutを使用すると、時間のかかる一連の手順が、迅速で継続的なプロセスに変わります。」



>>> 高解像度製品画像 はこちら

ParticleScout, a revolutionary particle analysis tool for the alpha300 Raman microscope series.