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staining
Staining is a technique used to enhance contrast in samples, generally at the microscopic level. Stains and dyes are frequently used in histology (microscopic study of biological tissues) and in the medical fields of histopathology, hematology, and cytopathology that focus on the study and diagnoses of disease at a microscopic level. Stains may be used to define biological tissues (highlighting, for example, muscle fibers or connective tissue), cell populations (classifying different blood cells), or organelles within individual cells.
In biochemistry it involves adding a class-specific (DNA, proteins, lipids, carbohydrates) dye to a substrate to qualify or quantify the presence of a specific compound. Staining and fluorescent tagging can serve similar purposes. Biological staining is also used to mark cells in flow cytometry, and to flag proteins or nucleic acids in gel electrophoresis. Light microscopes are used for viewing stained samples at high magnification, typically using bright-field or epi-fluorescence illumination.
Staining is not limited to biological materials, it can also be used to study the structure of other materials for example the lamellar structures of semi-crystalline polymers or the domain structures of block copolymers.
Hi everyone, in need of a little online assistance....We recently laid a floor of Jakarta 600 x 600 black floor tiles. They are are semi-matte?? finish. However, being new to tiling and under a tight schedule we werent as careful as we could have been and we are now left with adhesive stains on...
lee cooper
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adhesive
aus
matt
porcelain
porcelain tile
porcelain tiles
staining
tile
tile adhesive
tiles
usa
Hi guys,
got some stains appeared on some joints (not all) on honed grey slate (600x400).(see attached pic). clean water was used to wash when fixing and bal rapidset flexi was used to fix. the stone is fixed but not sealed or grouted yet. I thought maybe the staining could be removed when...
just come back from looking at a problem floor in cotswolds.
big slabs 2.2 x 1.2 mts i think .
I did not lay stone but i know the supplier adntheir client wanted advice.
no problem with fixing, but there is a dark mark through tiles as shown in picture.
the centre of these marks are 1000mm...
My wife would like to have white ceramic floor tiles fitted to our kitchen but I'm worried that the white grouting will get dirty and turn black.
Are there any products on the market that will prevent the grouting from staining, other than choosing black grouting which i've been told is a...
Zantaz
Thread
aus
grout
grouting
how
how to tile
staining
tile grout
tiling guide
usa
white
hi - was planning to buy the above (40m2 in 600x600mm tiles) from the stone collection aka stonehousetiles. its £30m2 ex VAT. i have seen cheaper but not even thickness and 600m and fairly un-rivened surface.
any alternative suppliers out there that can better £30m2?
also, have seen on...
JUST LAID A PIETRA SERENA SANDSTONE FLOOR IN A KITCHEN.
IT WAS PRESEALED THREE TIMES WITH STAINSTOP BY A DRYING AND SEALING COMPANY, SO STONE WAS DRY WHEN SEALED.
LAID STONE IN PCI CARRAMINT ADHESIVE WHICH IS RAPID SET WITH NEW LOCK IN MOISTURE TECHNOLOGY SO NOTHING MIGRATES THROUGH STONE TO...
just been to price up a regrout on quartz granite tiles (white) they have been down a year and stains are appearing they look like tea stains, the Manufacturers instuctions say non porus no need to seal the cleaners have been using non bleach cleaning products any ideas how to remove these...
Hi All,
My bathroom was fully fitted 4 years ago, we have porcelyn tiles floor to ceiling, the problem is just in the shower cubicle the grout has turned a reddish/brown colour and even though we clean it using normal bathroom cleaners it does not get it back to white, the question is can...
kevinp777
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cleaning
coverage
grout
liquid
paint
seal
sealing
shower
staining
tile grout
usa
I plan on using Mapei Ultracolour Plus on a kitchen floor. Is there anything I can do to prevent staining etc... for example if Spag Bol gets dropped, or cooking oil gets spilt...?
Any additives you can reccommend?
Ta.
AndrewPC123
Thread
bathroom
floor
floor tiling
grout
kitchen
staining
tile grout
usa
Hello all! Been on this site for a while but not had any questions untill now! I am doing some work for a customer tiling with these tiles, Vision Wall and Floor Tiles - Ivory - 30x60cm - 5 Pack from Homebase.co.uk
. A comment on their site mentions having toruble removing grout, These tiles...
Hi,
I've recently had my bathroom re-tiled by a tradesman. He had to replace a couple of the tiles due to chips. After he replaced them he left a thin layer of grout and told me to clean off the next day. I got most of it off but I'm now left with a few stained tiles.
The tiles are
Buxton...
Hi
I'm having an issue with stains on some black tiles that were used to tile our bathroom. Getting a bit panicky now as I'm wondering if we will need to re tile the whole thing!!
The tiles used were black porcelain tiles which were apparently already sealed before application, however since...
Hi all - Hope you're not working too hard over the weekend...!
I'm not exactly sure what is causing this problem but I will try to explain - I have laid some cream coloured polished porcelain tiles and grouted with limestone colour grout. Most of the job has turned out fine - but on a few...
daveshil
Thread
help
polished
polished porcelain
porcelain
porcelain tile
porcelain tiles
staining
tile
tiles
usa
Hi Y'all, just come across a problem of black grout staining a polished beige tile. The weird thing is is that it is not at all apparent at the tile edge but rather on the tile not directly touched by the grout during grouting but has received a grout covering during the washing off. It appears...
Hi everyone, first post an just wondering if anyone has had the same problems.
Over the last year Ive tiled several new builds with a 600x600 cream/beige polished porcelaine (Eagle Brand Holdings), when the builder first started using these I told him to check wether they needed to be sealed...
ORTiling
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grout
grouting
porcelain
porcelain tile
porcelain tiles
staining
tile grout
usa
water
What would be your product of choice for revivng Trav floor tiles that were never sealed - so generally look dull but also have 3 year old grey grout staining. Is there a product out there with a shot at bringing these up to their former glory??
Hello there,A bit of advice for a scared newb.Heres the scenario, purchased Topps black and white Salvatore floor tiles along with Bal Single Part Flex adhesive and Bal Superflex Wide Joint in Charcoal. Topps advised removing wax coating so used Lithofin WEXA. Then proceeded to apply Lithofin...
pevro
Thread
porcelain
porcelain tile
porcelain tiles
problem
staining
usa
Hi all,need some help.I fitted some black slate 600x300 a short while back.
I sealed twice with ltp sealer before grouting with white mapei.After cleaning off and leaving till the next day then cleaning them again i sealed them.The problem is they have a white shadowing on them.I have tried...
Hey peeps ,
what is the easiest and safest way of ensuring that ,when tiling floors with natural stone,that the adhesive used does not stain through from the back ,this is depending on the tile used of course.
Any tips and advice would be spiffing:80::45:
Mainly on limestone ,marble etc the...
sapperdan
Thread
adhesive
natural
natural stone
staining
stone
tile adhesive
tile setting
usa
Can anyone help , just started to lay golden yellow granite floor tiles yesterday and within a few hours you can see the area where the adhesive is below showing as a darker area , still the same overnight , Im worried this could be staining as I have used grey flexible tile adhesive ? how long...
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