Leica DM4 B e DM6 B Microscópios verticais

Automação inteligente para aplicações clinicas e ciências biológicas

Leia os nossos artigos mais recentes

Neurons imaged with DIC contrast.

Differential Interference Contrast (DIC) Microscopy

This article demonstrates how differential interference contrast (DIC) can be actually better than brightfield illumination when using microscopy to image unstained biological specimens.
Image of MDCK (Madin-Darby canine kidney) cells taken with phase contrast.

Phase Contrast and Microscopy

This article explains phase contrast, an optical microscopy technique, which reveals fine details of unstained, transparent specimens that are difficult to see with common brightfield illumination.

Immersion Objectives

How an immersion objective, which has a liquid medium between it and the specimen being observed, helps increase the numerical aperture and microscope resolution is explained in this article.
Cellular polarization dynamics before and after magneto-mechanical stimulation

Mechanically Stressed Cells under the Microscope

Traumatic brain injury, skin scarring, or fibrotic heart remodeling are examples for mechanical stress which cells and tissues are exposed to. In this article, the authors introduce a non-invasive,…
When particulate contamination is present in lubricating fluids or oils, it can cause damage to parts or components leading to malfunctions.

Hydraulics in the Automotive and Aerospace Industries

Cleanliness standards relating to lubricants, hydraulic fluids, and oils, e.g., ISO 4406 and DIN 51455 are discussed in this article. Cleanliness plays a central role in the automotive and…
Mouse lung sections

Studying Pulmonary Fibrosis

The results shown in this article demonstrate that fibrotic and non-fibrotic regions of collagen present in mouse lung tissue can be distinguished better with polarized light compared to brightfield.…

Factors to Consider When Selecting a Research Microscope

An optical microscope is often one of the central devices in a life-science research lab. It can be used for various applications which shed light on many scientific questions. Thereby the…

The Fundamentals and History of Fluorescence and Quantum Dots

At some point in your research and science career, you will no doubt come across fluorescence microscopy. This ubiquitous technique has transformed the way in which microscopists can image, tag and…
Steps of Koehler Illumination

Koehler Illumination: A Brief History and a Practical Set Up in Five Easy Steps

The technique of Koehler Illumination is one of the most important and fundamental techniques in achieving optimum imaging in any given light microscope set-up. Although it should be routinely used as…
Left: Tissue cells marked with an immunolabel (FITC) illuminated with wide-band UV excitation. Note the tissue structure with blue autofluorescence. Right: Same tissue and same immunostaining with FITC label illuminated with epi-illumination using narrow-band blue (490 nm) light. Note the increased image contrast (Ploem, 1967)

Milestones in Incident Light Fluorescence Microscopy

Since the middle of the last century, fluorescence microscopy developed into a bio scientific tool with one of the biggest impacts on our understanding of life. Watching cells and proteins with the…
Center a fluorescence bulb.

Video Tutorial: How to Align the Bulb of a Fluorescence Lamp Housing

The traditional light source for fluorescence excitation is a fluorescence lamp housing with mercury burner. A prerequisite for achieving bright and homogeneous excitation is the correct centering and…
Exchange a fluorescence bulb.

Video Tutorial: How to Change the Bulb of a Fluorescence Lamp Housing

When applying fluorescence microscopy in biological applications, a lamp housing with mercury burner is the most common light source. This video tutorial shows how to change the bulb of a traditional…
Jellyfish Aequorea Victoria

Fluorescent Proteins - From the Beginnings to the Nobel Prize

Fluorescent proteins are the fundament of recent fluorescence microscopy and its modern applications. Their discovery and consequent development was one of the most exciting innovations for life…
Section taste buds rabbit, differential interference contrast microscope

Optical Contrast Methods

Optical contrast methods give the potential to easily examine living and colorless specimens. Different microscopic techniques aim to change phase shifts caused by the interaction of light with the…
Tartaric acids, polarization

Polarization Contrast

Polarization microscopy is routinely applied in material sciences and geology to identify minerals on the basis of characteristic refraction properties and colors. In biology, polarization microscopy…
Transgenic Mouse Embryo, GFP

Fluorescence in Microscopy

Fluorescence microscopy is a special form of light microscopy. It uses the ability of fluorochromes to emit light after being excited with light of a certain wavelength. Proteins of interest can be…
SPERM HY-LITER™ staining of a sexual assault smear slide performed by forensic DNA crime laboratory.

Forensic Detection of Sperm from Sexual Assault Evidence

The impact of modern scientific methods on the analysis of crime scene evidence has dramatically changed many forensic sub-specialties. Arguably one of the most dramatic examples is the impact of…

Multi-Wavelength Epi-Illumination in Fluorescence Microscopy

This article discusses the development of epi-illumination and reflection contrast for fluorescence microscopy concerning life-science applications. Much was done by the Ploem research group…

Campos de aplicação

Microscopia de fluorescência

A fluorescência é um dos fenômenos físicos mais comumente usados na microscopia biológica e analítica, principalmente devido a sua alta sensibilidade e alta especificidade. A fluorescência é uma forma…

Virology

Soluções para aquisição de imagens e preparação de amostras para pesquisas em virologia

Técnicas básicas de microscopia

Técnicas básicas de microscopia são usadas onde todo o espécime no estágio de microscopia será exposto a uma fonte de luz. A amostra inteira é iluminada por luz branca tanto por cima (em uma…

Microscópios DIC

Um microscópio DIC oferece microscopia de campo amplo e tem um filtro de polarização e prisma Wollaston entre a fonte de luz e a lente do condensador e também entre a lente objetiva e o sensor da…

Microscópios de campo escuro

O método de contraste de campo escuro explora a difração ou a dispersão de luz a partir de estruturas de uma amostra biológica ou as características não uniformes de uma amostra de material.
Scroll to top