News

Noviembre 2020

WITec Wins Wiley Analytical Science Award 2021

ParticleScout recognized by readers as an outstanding innovation

Ulm, Germany
November 24th, 2020

WITec GmbH, innovator of Raman and correlative imaging microscopes, has received a Wiley Analytical Science Award 2021 for its ParticleScout automated particle analysis tool. ParticleScout won 2nd Place in the category: Spectroscopy and Microscopy.

This award celebrates outstanding innovation in equipment used for scientific analysis. A neutral jury of experts at Wiley created a shortlist from the full range of submissions, and then the readers of the print and digital editions of Wiley Analytical Science’s portfolio of journals voted for their favorites. The winners were announced during the Wiley Analytical Science Conference 2020.

“We’re very honored that ParticleScout has been recognized with this award, especially as it was chosen directly by Wiley’s readers,” said Harald Fischer, Marketing Director at WITec. “Being selected as a finalist and then supported by so many individuals I think reflects the strength of our technology, and also a wider awareness that precisely measuring microparticles and microplastics in our environment is an important and timely capability.”

ParticleScout is an advanced particle analysis tool that uses white light and Raman microscopy, a fast, label-free and non-destructive chemical characterization method, to find, classify, identify and quantify microparticles. It streamlines the entire microparticle analysis workflow, increasing the rate at which measurements can be performed and the number of particles that can be evaluated.

ParticleScout’s features include the ability to detect particles less than 1 µm in size, a variety of user-definable Boolean filters for particle categorization, and full integration with a Raman spectral database management software for sample component identification.

WITec ParticleScout product page:
https://www.witec.de/particlescout/

Mostrar Más...

Noviembre 2020

WITec Headquarters Expansion Update

We’ve produced aerial drone footage of our headquarters expansion that shows its current state of construction. The work is progressing quickly and the scale of the addition that will double capacity at our core facility is clearly visible. We look forward to the new spaces for production, development, shipping, product demonstrations and many other uses that it will offer when completed.

See the video below for a view of the changes to WITec’s home in Ulm, Germany. For more details about the design, utility and context of our new building expansion, please refer to the original press release.

Headquarters expansion update video (YouTube):
https://youtu.be/tkVYFiGQoyY

Original headquarters expansion press release:
https://www.witec.de/resources-and-education/news/post/2020/06/291

 

 

WITec Headquarters Expansion - November 2020

Mostrar Más...

Octubre 2020

Virtual Raman Imaging Poster Summit 2020 Successfully Concludes

Online event showcased the latest research and drew international participation

WITec GmbH, the driver of innovation in Raman and correlative microscopy, has completed hosting its first entirely online scientific conference.

The Virtual Raman Imaging Poster Summit 2020 was organized as a substitute for the renowned Confocal Raman Imaging Symposium. WITec wanted to provide a forum for the presentation and discussion of the exciting chemical characterization research that continues to advance while the scientific community is distributed. It was a response to the uncertainty and travel restrictions imposed by the ongoing pandemic, and it was a resounding success.

Over 250 people took part and 55 scientific posters were submitted in four different categories. The range of applications included the analysis of active ingredient and excipient distribution in pharmaceutical tablets, characterization of battery materials, detection of microplastic particles, cancer diagnosis, chemical analyses of organoids and polymer fibers in 3D, bacterial signaling investigation, analysis of microinclusions in arctic ice, extremely high-pressure Raman measurements, strain analyses in semiconductors, and many more.

“We were cautiously optimistic that the community would embrace the online conference format to share their recent work, and then the reaction far exceeded our expectations,” described WITec Marketing Director Harald Fischer. “The diversity, both scientifically and geographically, of the posters submitted really reflected the widespread adoption of Raman imaging.”

Discussions were carried out on the platform’s chat function and participants cast their votes for the Best Poster Award, which was won by Dr. Nathalie Jung (Goethe University, Frankfurt am Main, Germany) for her presentation titled, “Chemically-selective visualisation of organoids and their interaction with hydrogel matrices.”

The Virtual Raman Imaging Poster Summit and the thoroughly international engagement it produced has encouraged WITec to continue developing online event formats while the company looks forward to bringing the Raman imaging community back together in person. The Confocal Raman Imaging Symposium will return for its 17th occasion from September 27th through the 29th, 2021 in Ulm, Germany.

Virtual Raman Imaging Poster Summit 2020 review page:
www.raman-symposium.com/previous-symposia/review-2020

Confocal Raman Imaging Symposium home page:
www.raman-symposium.com

Dr. Nathalie Jung – Goethe University, Frankfurt am Main, Germany – Winner of the Best Poster Award (© Nathalie Jung)

Mostrar Más...

Agosto 2020

WITec Announces Virtual Raman Imaging Poster Summit 2020

Online conference offers the Raman community a forum for scientific exchange

Ulm, Germany
August 11th, 2020

WITec GmbH, technology leader in Raman microscopy, is hosting its first Virtual Raman Imaging Poster Summit from September 28th to October 2nd, 2020.  

This online conference offers the worldwide Raman community the chance to present and discuss their work from the convenience of their homes or home laboratories. Session topics will include: Life Sciences, Biomedical and Pharma Research, Advanced Materials Analysis, Environmental and Geosciences, and Correlative Imaging Applications.

The Virtual Raman Imaging Poster Summit takes the place of the Confocal Raman Imaging Symposium in the calendar of premiere events for chemical imaging and spectroscopy. The annual Symposium is acclaimed for both the diversity of the disciplines represented in its presentations, and its sociable atmosphere. The Virtual Raman Imaging Poster Summit will preserve both of these qualities while moving to a distributed format in response to the ongoing pandemic.

As expressed by Harald Fischer, Marketing Director at WITec, “We can’t wait to see what the Raman community has been up to. Even in these uncertain times, scientific progress continues and people are understandably excited about their latest discoveries. The Virtual Raman Imaging Poster Summit is in 2020 the best platform for sharing that excitement.”

Participants will be able to discuss the research presented through an online chat tool and send questions directly to the poster authors. To conclude the event, everyone will have the chance to vote for their favorite in the Best Poster Award competition. The deadline to submit an abstract for the conference is September 15th, 2020.

For further details, please see the Virtual Poster Summit 2020 homepage:
www.raman-symposium.com/virtual-poster-summit

Mostrar Más...

Julio 2020

Correlative high-resolution imaging of TMDs – Raman, SHG and PL imaging of an MoS2 flake

Two-dimensional (2D) materials such as transition metal dichalcogenides (TMDs) are receiving increasing attention due to their unique optical and electronic properties. Their possible applications include the production of transistors, photo detectors, light emitting diodes (LEDs) and photovoltaic cells. In order to produce high-quality devices, synthesis processes must be evaluated efficiently. Thus, non-destructive imaging techniques are required for monitoring crystal properties and features such as grain boundaries, layer number, defect density, doping and strain fields.

In our new application note, we present a series of measurements of CVD-grown mono-layer molybdenum disulfide (MoS2), which illustrate the advantages of correlative Raman, second harmonic generation (SHG) and photoluminescence (PL) microscopy for investigating TMDs. All measurements were performed at the same area of interest using a WITec alpha300 microscope equipped with a 532 nm laser for Raman and PL imaging and a picosecond-pulsed 1064 nm laser for SHG excitation.

Strain fields in the crystal were visualized by Raman and PL imaging, as both the frequency of the E2g Raman mode (upper left image) and the wavelength of the PL signal (lower left image) were red-shifted in the same areas. Rim effects around the border of the MoS2 flake were clearly visible in the PL image (lower left image), as well as in the image of the A1g Raman mode (see the attached application note).

SHG microscopy is sensitive to changes in crystal orientation and symmetry and visualized grain boundaries in the MoS2 flake (upper right picture). Additionally, polarization-dependent SHG measurements can identify the crystal orientation and reveal strain fields. To this end, the excitation polarization is rotated while recording the intensity of the SHG signal component that has the same polarization as the incident light. Polarization series were recorded in a fully automated manner at three positions of the MoS2 flake (lower right picture). The distinct patterns observed indicate different strain levels.

Correlative Raman, PL and SHG imaging yields complementary and consistent information for characterizing single-layer TMD crystals by visualizing features of the crystal structure, such as grain boundaries or strain fields, without damaging the sample.

For more details, including further pictures and references, please download our 2-page application note on correlative high-resolution imaging of MoS2.

Correlative Raman, PL and SHG imaging of a mono-layer MoS2 flake. 200 nm per pixel for all images. For a detailed description and more pictures, please download the attached application note.

Mostrar Más...

Julio 2020

Graphene fine structures visualized by high-resolution confocal Raman imaging

Raman imaging is a non-destructive tool for evaluating the quality of 2D materials as strain, doping, defects and layer number can be assessed. These two large-area Raman images visualize defect density (top) and strain fields (bottom) in a CVD-grown graphene flake at high spatial resolution (100 nm per pixel). They were acquired using the fully automated Raman microscope alpha300 apyron equipped with a 532 nm laser for excitation and TrueSurface for focus stabilization.

The upper Raman image is color-coded according to the intensity of the D-band in the recorded Raman spectra. It visualizes crystal defects, as the D-band intensity depends on the defect density in the carbon lattice. The observed width of the fine structures is very close to the diffraction limited lateral resolution achievable with 532 nm excitation, demonstrating the microscope’s high performance.

The lower Raman image is color-coded according to the peak position of the 2D-band, which was quantified by a Pseudo-Voigt fit. The image visualizes local strain/doping effects, as the frequency of the 2D-band is influenced by local strain and, to a lesser extent, by doping.

These examples offer conclusive proof that with an advanced and highly sensitive system, Raman imaging alone can provide access to the finest details of graphene crystal properties.

High-resolution Raman imaging of CVD-grown graphene (100 nm per pixel). Top: Raman image representing the intensity of the D-band, visualizing crystal defects. Bottom: Raman image representing the frequency of the 2D-band, visualizing local strain/doping effects.

Mostrar Más...

Julio 2020

ParticleScout is a contender for the Wiley Analytical Science Award 2021

We’re thrilled to share that ParticleScout, our automated microparticle analysis tool, has been chosen as a finalist for the 2021 Wiley Analytical Science Award!

This distinction from a neutral jury of researchers and industry representatives includes ParticleScout among six nominated products in the “Spectroscopy & Microscopy” category. Now, the readers of “GIT Labor-Fachzeitschrift”, “Imaging & Microscopy” and all users of the Wiley Analytical Science Portal can vote for their favorite product on the following page:

http://www.was-award.com/

Voting is possible from July 1st until September 30th. Wish us luck, or even better, voice your support for ParticleScout, the revolutionary tool that uses Raman spectroscopy to characterize microparticles, including microplastics in the environment.

https://www.witec.de/products/accessories/particlescout/

 

Mostrar Más...

Julio 2020

Researchers in India use a WITec Raman microscope to detect RNA viruses

A paper just published in the Journal of Biophotonics describes how Raman spectoscopy can enable the detection of RNA viruses in human saliva. Dr. Amit Dutt's group at the Tata Memorial Centre, based in Mumbai, obtained raw data with a WITec Raman microscope and carried out statistical analysis to find a set of 65 Raman spectral features that positively identified the presence or absence of viruses in a sample.

The analysis could be performed in less than a minute without adding a reagent to increase the signal. Their signal set was able to achieve 92.5% sensitivity and 88.8% specificity.  

“This conceptual framework to detect RNA viruses in saliva could form the basis for field application of Raman Spectroscopy in managing viral outbreaks, such as the ongoing COVID-19 pandemic,” said the researchers.

https://onlinelibrary.wiley.com/doi/abs/10.1002/jbio.202000189

Scientists in the research group of Dr. Amit Dutt, who used Raman microscopy to detect RNA viruses in human saliva samples.

Mostrar Más...

Junio 2020

WITec Begins Expansion of its Headquarters Facility

Increased capacity required to meet growing demand for Raman imaging microscopes

Ulm, Germany  
June 10th, 2020

WITec GmbH, the technology leader in correlative Raman microscopy, is expanding its headquarters building in Ulm.

The new addition will offer more space for production and quality assurance, laboratories for development and customer demonstrations or sample measurements, larger conference rooms and greater logistical capability. When complete, the new addition will double the amount of space available at WITec’s core location. 

“It was time to expand,” says Joachim Koenen, Co-founder and Managing Director of WITec. “We made advanced Raman imaging much more accessible by simplifying operation through our user-interface and extensive automation. The scientific community and marketplace have reacted very positively to these developments. As more researchers put our instruments in their labs, the word got out, and now we need the increased production capacity.”

WITec’s current headquarters was completed in 2009. Its design reflects the modularity and versatility of the scientific instruments produced within. An open and light-filled interior provides an environment for employees that is conducive to the exchange of ideas. Research and development, sales, applications, production, marketing, administration, technical service and logistics teams all work together hand-in-hand. This greatly contributes to WITec’s vaunted technological agility and preserves its innovative spirit.

As described by Olaf Hollricher, Co-founder and Managing Director of R&D at WITec, “Our headquarters was purpose-built to encourage cross-departmental interaction, from development through shipping, and it’s had a very positive effect on the dynamics and performance of our company. The new expansion will allow us to scale up while adhering to this concept.”

Construction of the new addition will continue through 2020 with an anticipated opening toward the end of 2021.

WITec GmbH’s headquarters building in Ulm, Germany. The highlighted structure shows the addition currently under construction.

Mostrar Más...

Junio 2020

New Webinar Portal on the WITec Homepage

WITec has created a new portal for instructional video content on our company website. It provides direct access to comprehensive tutorials and measurement demonstrations along with links to archived on-demand presentations.

As many scientists have recently increased their use of web-based resources to keep current with the latest in research techniques and technology, we’ve decided to consolidate our online webcast offerings in one point of entry. From the comfort of home offices, the many forms and applications of Raman imaging and correlative microscopy can be viewed at your convenience. Please check back regularly for updates as we continue to expand our webinar library.

www.witec.de/es/webinars

Mostrar Más...

Abril 2020

WITec revela la nueva generación de alpha300 apyron - Microscopio de Imagen Raman automatizado con tecnología AutoBeam™

El sistema con auto-alineación y auto-optimización mantiene el enfoque en los resultados.

Ulm, Alemania  
28 de abril de 2020


WITec GmbH, pionera en la tecnología de imágenes Raman y de microscopía correlativa, establece el siguiente nivel de automatización y facilidad de uso con la introducción del nuevo alpha300 apyron. La tecnología AutoBeam libera todo el potencial de la serie alpha300 de WITec, líder en la industria. Las capacidades ópticas, analíticas y de operación remota total nuevas del alpha300 apyron marcan el desarrollo más avanzado hasta ahora en velocidad, sensibilidad y resolución.

El alpha300 apyron puede autoalinearse y autocalibrarse, lo que reduce sustancialmente la carga de trabajo experimental del investigador al requerir menos intervenciones del usuario, mejorando la reproducibilidad y eliminando posibles fuentes de error. Esto es posible gracias a un completo conjunto de componentes opto-mecánicos AutoBeam de WITec, un nuevo y versátil juego de herramientas que puede ser configurado para crear la perfecta configuración experimental para cada investigación.

Las nuevas funcionalidades que ofrecen los módulos AutoBeam incluyen mediciones dependientes de la polarización con filtros motorizados y rotación del analizador, selección de espectrómetro con un simple click, maximización de la señal, y ajuste automatizado de ambos diafragmas del iris. La automatización por software también permite que el alpha300 apyron pueda ser operado completamente a distancia, ya sea en un recinto ambiental como una guantera, o desde algún lugar remoto.

Según Olaf Hollricher, cofundador y director general de investigación y desarrollo de WITec, "El alpha300 apyron, con la tecnología AutoBeam, es la culminación de nuestros esfuerzos para automatizar completamente el proceso de imágenes Raman. Permite el control remoto, incluso desde casa, y puede auto-optimizarse para cada medición, de modo que los investigadores siempre obtienen los mejores resultados posibles".  

Disponibles con una amplia variedad de longitudes de onda de excitación desde el ultravioleta hasta el infrarrojo cercano pasando por el visible, los microscopios de apirón alpha300 pueden estar equipados con hasta tres espectrómetros WITec UHTS de ultra-alta eficiencia y su correspondiente gama de detectores. Las imágenes Raman y las mediciones correlativas se definen, ejecutan, guardan y evalúan con el software Suite FIVE de WITec y el intuitivo controlador manual EasyLink.

WITec comenzó a automatizar las mediciones de imágenes Raman con la primera generación de apyron. Su avanzada tecnología fue introducida en la línea alpha300 en etapas de desarrollo espiral. La nueva serie alpha300 consolida un espectro continuo, desde el sistema básico access, hasta el modelo insignia, apyron. Todos comparten la misma estabilidad, robústos como una roca, la flexibilidad basada en fibra óptica y la integración provista por el software. 

Como lo describe Joachim Koenen, cofundador y director general de WITec, "Muchas características automatizadas de vanguardia incluidas en apyron se han abierto camino en la línea de microscopios alpha300 en los últimos cinco años. A medida que desarrollamos nuevas capacidades ópticas y hardware, éstas se construyen con un estándar de compatibilidad. Ahora alguien puede configurar un access, un apyron, o cualquier sistem intermedio para satisfacer los requisitos específicos de su investigación, incluso a medida que evoluciona".

La facilidad de uso del alpha300 apyron hace que las imágenes confocales avanzadas del Raman sean accesibles a los investigadores de todos los niveles de experiencia y campos de aplicación. Los científicos que trabajan en ciencia de los materiales, ciencias medioambientales y análisis de micropartículas, ciencias de la vida, ciencias alimentarias, geología, farmacia y muchos otros campos se beneficiarán de las rutinas de alineación automatizada que proporcionan un rendimiento optimizado de forma constante. El alpha300 apyron acelera tanto la configuración experimental como el subsiguiente flujo de trabajo de medición.

Puede encontrar más información sobre el nuevo alpha300 apyron aquí: www.witec.de/es/products/raman-microscopes/apyron-automated-raman-imaging.

La segunda generación del alpha300 apyron de WITec ofrece una mayor automatización y más capacidades ópticas que nunca antes.

Mostrar Más...

Abril 2020

WITec anuncia los ganadores del Paper Award 2020

Cada año, el concurso WITec Paper Award reconoce tres excepcionales publicaciones, evaluadas por un comité científico, que presentan los resultados adquiridos con un microscopio WITec. Este año se presentó un número récord de 113 publicaciones, en una clara demostración del poder de las imágenes Raman para diversos campos de aplicación como la investigación del cáncer, la electroquímica, la investigación de semiconductores, la geología y la investigación de microplásticos, por nombrar sólo algunos. WITec agradece a todos los participantes las destacadas contribuciones provenientes de todo el mundo. Los premios Paper Awards 2020 se otorgan este año a investigadores del Japón, Polonia y Austria y reconocen estudios y metodologías impresionantes de los campos de la electroquímica, la biomedicina y la ciencia de los polímeros, respectivamente.

    Primer Premio: Ankur Baliyan y Hideto Imai (2019) Machine Learning based Analytical Framework for Automatic Hyperspectral Raman Analysis of Lithium-ion Battery Electrodes. Scientific Reports 9: 18241. doi.org/10.1038/s41598-019-54770-2

    Segundo Lugar: Ewelina Wiercigroch, Elzbieta Stepula, Lukasz Mateuszuk, Yuying Zhang, Malgorzata Baranska, Stefan Chlopicki, Sebastian Schlücker y Kamilla Malek (2019) Microscopía ImmunoSERS para la detección de células de músculo liso en placas ateroscleróticas. Biosensores y Bioelectrónica 133: 79-85. doi.org/10.1016/j.bios.2019.02.068

    Tercer Lugar: Ruth Schmidt, Harald Fitzek, Manfred Nachtnebel, Claudia Mayrhofer, Hartmuth Schröttner y Armin Zankel (2019) La combinación de la microscopía electrónica, la microscopía Raman y la espectroscopía de rayos X dispersiva de energía para la investigación de materiales poliméricos. Simposio Macromolecular 384: 1800237. doi.org/10.1002/masy.201800237

 Para obtener una lista de todos los ganadores anteriores del WITec Paper Award, visite www.witec.de/paper-award.

El trabajo laureado con el Primer Lugar: Automated quality control of lithium-ion batteries

Las baterías de iones de litio (LIB) proporcionan la energía para la mayoría de los dispositivos eléctricos que utilizamos a diario, como teléfonos móviles, tabletas y ordenadores portátiles. Su desarrollo fue honrado con el Premio Nobel de Química el año pasado. El control de calidad automatizado en tiempo real de los materiales de las LIB es necesario para la investigación y la producción industrial. Ankur Baliyan y Hideto Imai de Nissan Arc. (Yokosuka, Japón) ganaron el Primer Premio por su enfoque basado en el aprendizaje automático para analizar los datos Raman de los LIB. Las imágenes Raman de los cátodos LIB pueden visualizar la distribución espacial del material catódico activo (óxido de litio, níquel, manganeso y cobalto, abreviado como LiMO2) y la matriz de carbono circundante. A fin de automatizar y acelerar el proceso de identificación de las firmas espectrales en los conjuntos de datos del Raman, los autores elaboraron un marco analítico basado en el aprendizaje automático. Comienza por preprocesar automáticamente los datos Raman para eliminar la línea base y los rayos cósmicos. A continuación, los algoritmos determinan el número de componentes, extraen las correspondientes características espectrales y las identifican. Los espectros se utilizan finalmente para entrenar una red neuronal, que puede entonces analizar automáticamente los datos Raman de la misma o de otra muestra LIB. Los autores demostraron que el análisis de los datos por la red neural dio resultados coherentes con los resultados de un usuario experimentado. Sin embargo, el algoritmo encontró dos rastros menores, además de los componentes principales de carbono y LiMO2, que correspondían a una señal de fondo residual y uno de los componentes principales que presentaban señales de fluorescencia. El enfoque presentado requiere muy poca intrvención del usuario y, por lo tanto, es adecuado para el control de calidad en tiempo real utilizando datos Raman de baterías de iones de litio y otras aplicaciones.

El segundo premio corresponsde al trabajo: Characterizing atherosclerotic plaques with iSERS microscopy

"La aterosclerosis es una de las principales causas de muerte en todo el mundo. Comprender el mecanismo de su formación sigue siendo un gran desafío para la medicina. Por ello, se necesitan potentes técnicas para controlar la composición y la estabilidad de las placas ateroscleróticas", dice Ewelina Wiercigroch de la Universidad Jagiellonian (Cracovia, Polonia), ganadora del segundo lugar en 2020. Las placas ateroscleróticas se forman en las paredes arteriales y estrechan los vasos sanguíneos. La vigilancia de la estabilidad de las placas es de relevancia clínica porque su ruptura puede provocar un accidente cerebrovascular o un ataque cardíaco. Dado que las células del músculo liso (CSM) desempeñan un papel fundamental en la estabilización de las placas, su presencia puede servir como un marcador de la estabilidad de la placa. Ewelina Wiercigroch, Elzbieta Stepula, Lukasz Mateuszuk, Yuying Zhang, Malgorzata Baranska, Stefan Chlopicki, Sebastian Schlücker y Kamilla Malek de la Universidad Jagiellonian y la Universidad de Duisburg-Essen (Alemania) demostraron la factibilidad de la microscopía immuno surface-enhanced Raman scattering (iSERS) para  SMC, teñidas con marcadores, en las placas ateroscleróticas. Las etiquetas de SERS se conjugaron con un anticuerpo primario dirigido contra α-actina de SMCs (iSERS directo) o con un anticuerpo secundario apropiado (iSERS indirecto). Las imágenes iSERS de secciones de arterias de ratones visualizaron regiones que contenían SMCs y el análisis de conglomerados permitió cuantificar el porcentaje de SMCs localizados en las placas. Los resultados de la tinción iSERS coincidieron cualitativa y cuantitativamente con los de la tinción por inmunofluorescencia (IF). La IF es el estándar actual en la visualización de los constituyentes ateroscleróticos, pero iSERS ofrece algunas ventajas, como una mayor fotoestabilidad. Por lo tanto, el estudio establece que el iSERS es una técnica prometedora para visualizar y cuantificar los SMC en las placas ateroscleróticas.

El Tercer lugar corresponde a: Correlative Raman imaging of polymeric materials

Ruth Schmidt de la Universidad Tecnológica de Graz (Graz, Austria) recibe el tercer premio, junto a sus colegas Harald Fitzek, Manfred Nachtnebel, Claudia Mayrhofer, Hartmuth Schröttner y Armin Zankel. El grupo demostró el potencial de la microscopía correlativa de imágenes Raman y de microscopía electrónica de barrido (RISE) y de la espectroscopía de rayos X por energía dispersiva (EDXS) para la investigación de polímeros. Los materiales poliméricos son populares en muchas aplicaciones debido a su amplia variedad de propiedades útiles, como su alta elasticidad o dureza. Para caracterizar sus propiedades, se combinaron las ventajas de tres técnicas de imagen. La Microscopía Electrónica de Barrido (SEM) adquirió información estructural de alta resolución, mientras que la imagen Raman reveló la composición química y se complementó con información elemental de EDXS. La publicación contiene un capítulo detallado de metodología en el que se describen diferentes enfoques de preparación de muestras y modos de obtención de imágenes. Por ejemplo, explica las estrategias para la obtención de imágenes por SEM sin recubrir la muestra, lo que dificultaría la posterior obtención de imágenes Raman. Se investigaron tres muestras de polímeros con RISE y EDXS, lo que permitió obtener información complementaria de la misma región de la muestra. Se correlacionaron las estructuras gruesas y finas de las muestras con las propiedades químicas y se visualizó la estructura de las capas de los materiales de embalaje. Se identificaron los aditivos de las partículas en una matriz de polímeros y se investigó su distribución de tamaño. Los autores subrayaron que la combinación de SEM, imágenes Raman y EDXS ofrece grandes posibilidades para el análisis de materiales poliméricos.


La competencia continúa: WITec Paper Award 2021

Se invita a los científicos de todos los campos de aplicación a participar en el concurso Paper Award 2021 (www.witec.de/paper-award). Los artículos publicados en 2020 en una revista revisada por pares que presenten datos obtenidos con un microscopio WITec pueden presentarse en papers@witec.de hasta el 31 de enero de 2021. El WITec espera con interés recibir muchas publicaciones nuevas y excepcionales

 

Los ganadores del WITec Paper Award 2020. Arriba: Los ganadores del primer lugar Ankur Baliyan (centro) y Hideto Imai (derecha) junto con el director representante de WITec K.K. Michael Verst (izquierda). En el centro: La ganadora del segundo lugar Ewelina Wiercigroch (centro) y sus coautores (en el sentido de las agujas del reloj, empezando arriba a la izquierda): Elzbieta Stepula, Yuying Zhang, Lukasz Mateuszuk, Kamilla Malek, Sebastian Schlücker, Malgorzata Baranska y Stefan Chlopicki. (© E. Wiercigroch) Abajo: La ganadora del tercer lugar Ruth Schmidt (al centro) y sus coautores de izquierda a derecha: Armin Zankel, Claudia Mayrhofer y Hartmuth Schröttner (fila superior); Manfred Nachtnebel y Harald Fitzek (fila inferior). (© FELMI-ZFE)

Mostrar Más...

Marzo 2020

Application Note on Raman Imaging of Semiconducting Materials

WITec has released a new Application Note that features measurements of semiconducting materials using 2D and 3D Raman imaging in combination with other techniques such as atomic force microscopy (AFM), scanning electron microscopy (SEM) and second or third harmonic generation (SHG, THG) microscopy. See how correlative techniques can characterize crystallinity, topography, stress fields and other properties on materials such as silicon, gallium nitride and molybdenum disulfide.

Mostrar Más...

Febrero 2020

WITec Japan Opens New Office in Yokohama

To better serve our growing business in Japan, WITec K.K. has relocated the national office to Yokohama. Within a two-minute walk from the JR Kannai station and close to Yokohama Stadium, home of the Baystars baseball team, our new office is conveniently accessible from all over Japan.

In addition to delivering Raman imaging solutions with superior performance, customer satisfaction through excellent service and support is the key to WITec’s success. The new office provides a great environment for pursuing these objectives.

Our team is ready to work with existing and potential customers in the new equipment demonstration/sample measurement laboratory on their individual applications and requirements. A meeting and training space will host workshops and serve as a conference room for Japan’s Raman imaging community.

We look forward to welcoming you into our new home.

The WITec K.K. Team

WITec K.K.
WITec 株式会社
〒231-0032 神奈川県横浜市中区不老町1-1-5
横浜東芝ビル 8F
1-1-5 Furo-cho, Naka-ku,
Yokohama City, Kanagawa Pref.
231-0032, Japan

+81(0)45 319 4277
info@WITec.jp
www.witec.de/jp/

Mostrar Más...

Febrero 2020

Physics World Interview with WITec Co-Founder

Physics World Magazine conducted a wide-ranging interview with WITec Co-founder and Director of Research and Development, Olaf Hollricher, in the days leading up to the MRS Fall Meeting and Exhibit at the end of last year.

The article, Confocal Raman microscopy: correlate and accumulate, highlights the versatility of the technique and the modular architecture of WITec’s microscopes. It describes how Raman imaging can be integrated with other methods within one instrument to provide a more comprehensive picture of a sample’s chemical composition and distribution. The potential of this approach, known as correlative microscopy, and the growing demand for it in the marketplace are examined. Dr. Hollricher also discusses the seemingly contradictory challenges that have been overcome in pursuit of both capability and accessibility. Two of WITec’s standout innovations, TrueSurface topographic Raman imaging, and the ParticleScout microparticle analysis tool are detailed as well.

Download the .pdf of the interview or read it on the Physics World website through the link below.

https://physicsworld.com/a/confocal-raman-microscopy-correlate-and-accumulate/

Mostrar Más...

Enero 2020

ParticleScout Nominated for SelectScience Scientists' Choice Award

WITec's ParticleScout has been nominated for a SelectScience Scientists' Choice Award in the category of Best New Spectroscopy Product. We're very excited to be in the competition and thankful to our customers around the world for their enthusiasm.

The Scientists' Choice Awards are presented annually to recognize the laboratory products introduced in the preceding year that helped researchers the most in the course of their work. Scientists themselves directly nominate, review, and vote for the winners.

WITec's ParticleScout is an automated microparticle anaylsis tool for the alpha300 line of confocal Raman microscopes that can find, classify and identify microplastics and other particles with industry-leading speed and precision. If you'd like to voice your support for this revolutionary and timely technology, please vote through the link below. All participants are entered into a drawing for the chance to win a $500/£400/450€ Amazon Gift Card. Voting ends February 21st.

Vote here: https://www.selectscience.net/editorial-articles/vote-for-best-new-general-lab-and-analytical-science-products-in-the-scientists-choice-awards/?artID=50564

Mostrar Más...

Enero 2020

WITec Consolidates Sales, Applications and Technical Support for French Market

WITec GmbH, industry-leading manufacturer of 3D confocal Raman imaging and correlative microscopy systems, has updated its organizational structure in France to streamline communication and better leverage in-house technical expertise.

Dr. Maxime Tchaya, a longtime member of the WITec team, will manage the French market directly. His responsibilities include all sales activities and the coordination of technical support, equipment demonstrations and sample measurements.

Dr. Tchaya is native French speaker who began with WITec as an applications scientist before bringing his thorough, practical knowledge of WITec microscopes to the sales department. This experience will enable him to precisely address the requirements of the local client base while providing them with a direct conduit to WITec’s research and development group.

WITec renforce son service commercial et technique sur le marché français

WITec GmbH, leader de la microscopie confocale Raman 3D et fabriquant de plateformes de microscopie corrélative, renforce son organisation en France.

Dr. Maxime Tchaya, membre de longue date de l'équipe WITec, prend la responsabilité de la commercialisation et du support des solutions WITec en France. 

Sa longue expérience au sein de l’équipe d’application, et son excellente connaissance du marché français, sont autant d’atouts qui lui permettront de répondre avec précision et efficacité aux besoins de la clientèle, tout en la rapprochant davantage de l’équipe R&D pour les demandes spécifiques.

 

Dr. Maxime Tchaya
Area Manager France - Canada - Poland
Lise-Meitner-Str. 6
89081 Ulm, Germany
Tel: +49 (0) 731 140700
Maxime.Tchaya@witec.de

 

 

 

 

Dr. Maxime Tchaya. New Area Manager France, Canada and Poland

Mostrar Más...