97精品国自产拍在线观看_美日韩中文字幕_狠狠色丁香婷婷综合影院_h片欧美精品一区二区_一级毛片破过处的美女_亚洲AV有幕在线天堂动漫_无码专区白嫩少妇高潮喷水久久_皮特影院在线观看_热九九这里只有精品_亚洲综合网天天x

產品中心 Products
最新新聞 / News More
1
2018 - 06 - 08
2018年6月6日訊 /生物谷BIOON /——PERIOD 2 (PER2)蛋白的多點磷酸化是決定哺乳動物生物鐘周期的關鍵步驟。過去的研究認為PER2被酪蛋白激酶1(CK1)磷酸化的過程需要一種未被發(fā)現的蛋白激酶來啟動,而CK1是一種從藻類到人類都高度保守的生物鐘必需蛋白。這些磷酸化過程可以穩(wěn)定PER2,延緩其降解以延長生物鐘周期。圖片來源:CCO public domain為了找到這個必需的蛋白質,一個由杜克-新加坡國立大學醫(yī)學院研究人員領導的國際團隊對小鼠PER2啟動磷酸化的過程進行了綜合的生物化學和生物物理學分析,結果驚訝地發(fā)現CK1δ/ε就是他們尋找的啟動激酶。此外,他們還發(fā)現CK1ε和一個最近發(fā)現的CK1δ2剪接變體可以比CK1δ1更有效地啟動磷酸化。盡管過去研究顯示CK1對PER2的磷酸化對細胞環(huán)境很不敏感,但是研究人員通過使用生物節(jié)律磷酸化開關數學模型發(fā)現CK1羧基端尾部使得生物鐘周期對細胞信號敏感。這些研究表明CK1羧基端是生物節(jié)律的一個重要的調節(jié)因子。(生物谷Bioon.com)參考資料:Rajesh Narasimamurthy et al, CK1δ/ε protein kinase primes the PER2 circadian phosphoswitch, Proceedings of the National Academy of Sci...
2
2019 - 03 - 29
空氣污染有關眾所周知,污濁的空氣對身體有害,每年在全球范圍內造成數百萬人死亡。這使空氣污染成為比吸煙更厲害的殺手。然而,空氣污染對人類大腦也有害嗎?一項研究發(fā)現,在英國污染最嚴重地區(qū),青少年的精神疾病問題(包括幻覺)更加常見。相關成果日前發(fā)表于《美國醫(yī)學會雜志—精神病學》。然而,這種關聯(lián)并非意味著吸入污濁空氣會使青少年患上精神疾病,因為可能還有其他解釋。該研究作者之一、倫敦國王學院的 Helen Fisher 表示,這項研究未顯示出因果關系。Fisher 和同事發(fā)現,在 2000 名 18 歲青少年中,30% 的人報告稱其在青少年時期至少有過一次精神疾病經歷——其他針對年輕人的研究也報告了類似數字。然而研究發(fā)現,當把這些青少年的住址與空氣污染情況作對照時,那些生活在污染程度較高地區(qū)的青少年更有可能有精神疾病史。在氮氧化物(由柴油車產生的污染物)含量最高的地區(qū),每 20 名青少年中就有 12 名報告患有精神疾?。欢诳諝廨^清潔地區(qū),降至每 20 人中有 7 人患病。目前尚不清楚空氣污染與精神疾病存在何種關聯(lián)。該團隊提出的一種推測性機制是,污染物累積會直接影響大腦。研究表明,空氣污染與額葉皮層和嗅球的炎癥和退化有關,其中嗅球是大腦中負責嗅覺的部分。而大腦炎癥已被證實與精神疾病有關。一個更簡單的解釋可能是,不是污染空氣本身,而是汽車排放的噪音污染帶來了問題。噪音污染會增加壓力、擾亂睡眠,...
3
2019 - 08 - 01
第二看臺老年性黃斑變性(AMD)、視網膜色素變性(RP)等視網膜變性疾病是目前尚無有效治療手段的兇險致盲性眼病,也是公認的 “視力殺手”。由中南大學愛爾眼科學院院長唐仕波教授、愛爾眼科研究所副所長陳建蘇教授帶領團隊,利用誘導多能干細胞(iPS)條件培養(yǎng)基和飛秒角膜透鏡,聯(lián)合構建高活性視網膜色素上皮細胞(RPE)的研究,不但有利于對視網膜色素上皮細胞生理特性、藥物篩選等研究,還有利于構建組織工程視網膜層及其移植。這將幫助科學家開發(fā)出應用組織工程 RPE 細胞片治療視網膜變性疾病和光感受器病變的新方法。培養(yǎng)高活性的視網膜細胞與年齡相關的老年性黃斑變性是發(fā)達國家 50 歲以上人群視力損害和致盲的首要病因,多達 90% 的病人無法治愈。數據顯示,發(fā)達國家年齡 50 歲以上黃斑變性的發(fā)病率達 11%,目前我國的發(fā)病率接近發(fā)達國家,患病人數超過 3000 萬人,并以每年 30 萬人次的速度增加,成為我國現階段 50 歲以上年齡群體發(fā)病率最高的三大眼科疾病之一,而且女性呈現出比男性更高的危險性。研究發(fā)現,未來最有希望治療老年性黃斑變性的方式是視網膜色素上皮細胞療法、視網膜黃斑部分的移植。那么,要采用 RPE 療法,就需要先培養(yǎng)健康的視網膜細胞。陳建蘇告訴科技日報記者,取出死亡時間在 3 小時內捐獻者的帶有部分脈絡膜的視網膜組織,在解剖顯微鏡下可將帶有部分脈絡膜的 RPE 層從捐贈組織中分離出來,...
聯(lián)系我們
北京照生行儀器設備有限公司
銷售熱線:010-62929079
公司總機:010-62929079
圖文傳真:010-62929277
總部地址:北京市海淀區(qū)西二旗西路熱力公司院內泰禾文化園二層
產品名稱:

EVOS? FL Imaging System

上市日期: 2019-04-15
產品類別: EVOS

規(guī)格

Color:Transmitted Light
Data Output:BMP Files,?JPG Files,?PNG Files,?TIFF Files
Detection Method:Fluorescent
Dimensions:36 cm (14 in) (W) x 58 cm (23 in) (H) x 47 cm (19 in) (D)
Display Interface:15-inch color monitor,?Adjustable tilt
For Use With (Equipment):Fluorescence Microscope
Format:Specific Holder Attachments
Frequency:50?60 Hz
Input Voltage:100-240 VAC
Objectives:5 Objective Turret
Product Line:EVOS?
Product Size:1 each
Stage:Mechanical stage with X-Y axis fine-positioning controls
Weight:15.3 kg (33.7 lbs)


  • 產品描述
  • 產品功能
  • 產品參數

描述

The EVOS? FL Imaging System is a fully integrated, digital, inverted imaging system for four-color fluorescence and transmitted-light applications. It is powerful, yet easy-to-use and delivers high-definition images with exceptional convenience. The unique light cubes, sensitive camera, and precision-engineered optical system make the EVOS? FL system ideal for both demanding and routine fluorescence imaging applications.

The EVOS? FL Imaging System offers you these important advantages:

? Easy installation; no maintenance, assembly, alignment, or calibration
? For four-color fluorescence and transmitted light applications
? Five-position objective turret with front controls
? On-board software
? All-in-one design: digital camera, precision optics, LCD display, and USB storage

Fully Integrated Imaging System
The EVOS? FL system represents a new concept in transmitted light inverted microscopy. It is a fully integrated imaging system that combines precision optics, a 15' high-resolution LCD display, and a highly sensitive Sony ICX445 monochrome CCD camera (1280 x 960 pixel resolution, 1.3 Megapixels). Images are seamlessly acquired through the intuitive user interface using a mouse for easy control. Monochrome cameras are commonly used for high-performance fluorescence applications and provide the best sensitivity for detection of faint fluorescence signals. Color cameras, as on the EVOS? FL Color System, have lower fluorescence sensitivity but have the advantage of being able to differentiate structures by color in transmitted light (e.g., imaging stained tissue samples).

Compare cell imaging systems >

Versatile and Highly Configurable
The EVOS? FL system features an easily accessible 5-position objective turret and a 3-position condenser turret. The 4 fluorescence light cubes are lever-actioned for rapid and easy selection. The optical system can be configured to best meet your needs using our full range of high-quality objectives from 2x to 100x magnification. Lighting settings are automatically adjusted to match the objective magnification. The EVOS? FL system features a mechanical stage with X/Y-axis fine-positioning using control knobs conveniently located on the left side and the front of the stage. The stage accommodates EVOS? vessel holders that provide a perfect fit for most vessel types and sizes. Interchangeable stage plates accommodate most vessel types and sizes, including flasks, Petri dishes, multi-well plates, and slides.

Smart LED Illumination Technology
All EVOS? fluorescence imaging systems utilize our unique, proprietary LED light cubes. This world-leading light engine outputs remarkable intensity over a short light-path that delivers superior fluorophore excitation. Each light cube contains a precisely matched set of optical components to optimize the position, evenness, and intensity of the light beam. Digitally controlled LED light sources allow adjustment of illumination levels, dramatically improving control over photobleaching. Hard-coated filters give sharper edges and significantly higher transmission efficiencies than traditional soft-coated filters.

Integrated Software
The on-board computer makes the EVOS? FL system easy to run and use, and the intuitive, comprehensive software facilitates both image acquisition and analysis. Modules include time-lapse acquisition, manual-assist cell counting, and image review. Saved user settings work in conjunction with 'smart' controls to help increase efficiency and ease of use. Image data are saved to a USB flash drive for easy, portable data transfer or to a Windows-networked local server. Images can be saved in PNG, JPEG, BMP, and TIFF formats with a maximum captured image resolution of 1280 x 960 pixels.

These features make the EVOS? FL system ideal for both routine and demanding fluorescence imaging applications such as GFP-vector transfection efficiency analysis, routine cell and tissue culture, cell confluence determination, stem cell growth and differentiation, and developmental biology and tissue slice analyses. And the compact footprint makes it as easy to use the EVOS? FL system in a cell culture hood as on the bench.

Easy to Use and Reliable
The EVOS? FL Imaging System is plug-and-play. In addition to an exceptionally easy set-up and installation, it requires no warm-up or cool-down periods. The LED light source offers exceptional stability and durability—so you can turn the unit on and off whenever you need to image a sample. The environmentally safe mercury-free LED bulbs are rated for >50,000 hours (~17 years) of life, compared to 300 hours for a typical mercury bulb and 1,500 hours for a metal halide bulb. The long life and low energy consumption translate into significantly lower operating costs compared to instruments with conventional light sources. Finally, the advanced ergonomic design of the EVOS? systems removes the strain associated with conventional microscopes, enables shared viewing, and makes moving the units easy. For extended or precision use, the EVOS? arm rest provides comfortable support.

The EVOS? imaging systems are built from the ground up to maximize performance and optimize workflow. You will be astonished at how easy it is to operate and amazed at how extraordinary your images look on-screen.

Learn more about the EVOS? FL Imaging System
Explore the entire EVOS? line of imaging systems and accessories

System Highlights
Optics: infinity-corrected optical system, RMS-threaded objectives with 45 mm parfocal distance
Illumination: adjustable intensity LED (>50,000-hour life per light cube)
Light cubes (not included): broad selection of patented standard and specialty light cubes
Common light cubes include: DAPI (Ex 360 nm/Em 447 nm), GFP (Ex 470 nm/Em 525 nm), RFP (Ex 530 nm/Em 593 nm), Texas Red? (Ex 585 nm/Em 624), Cy5 (Ex 628 nm/Em 692 nm)
Contrast methods: fluorescence and transmitted light (brightfield & phase contrast)
Objective turret: 5-position, front-mounted control
Objectives (not included): wide selection of high-quality LWD and coverslip-corrected objectives available
Condenser: 3-position turret with brightfield and phase contrast annuli
Condenser working distance: 60 mm
Stage: mechanical 'glide' stage; X-Y axis fine-positioning controls: 28.3 mm (1.11') per rotation, 110 mm x 110 mm (4.3' x 4.3') range of motion; Z-axis focusing controls: 480 μm/rotation; interchangeable vessel holders are available for most common shapes and sizes
Focus mechanism: coaxial focus knobs with tension control
Course focus: 38 mm/rev
Fine focus: 0.2mm/rev, precision 0.002 mm
LCD display: 15-inch color, 1024 x 768 pixels, adjustable tilt
Camera: Sony ICX445 monochrome CCD, 1/3' 1280 x 960 pixels, 1.3 Megapixels
Image acquisition: onboard microprocessor, built-in software for image acquisition via mouse control
Captured images: 16-bit monochrome TIFF or PNG (12-bit dynamic range); 24-bit color TIFF or PNG; jpeg, bmp, 1280 x 960 pixels
Output ports: 3 USB and 1 DVI
Power supply: AC adapter with country-specific power cords; input 100-240 V, 50-60 Hz; output 12 VDC/4.15 A
Dimensions: operating height = 57.8 cm (22.75 in); storage/transport height = 32.4 cm (12.75 in); depth = 47.0 cm (18.5 in); width = 35.5 cm (14.0 in)
Weight: 15.3 kg (33.7 lbs)?


規(guī)格

Color:Transmitted Light
Data Output:BMP Files,?JPG Files,?PNG Files,?TIFF Files
Detection Method:Fluorescent
Dimensions:36 cm (14 in) (W) x 58 cm (23 in) (H) x 47 cm (19 in) (D)
Display Interface:15-inch color monitor,?Adjustable tilt
For Use With (Equipment):Fluorescence Microscope
Format:Specific Holder Attachments
Frequency:50?60 Hz
Input Voltage:100-240 VAC
Objectives:5 Objective Turret
Product Line:EVOS?
Product Size:1 each
Stage:Mechanical stage with X-Y axis fine-positioning controls
Weight:15.3 kg (33.7 lbs)


規(guī)格

Color:Transmitted Light
Data Output:BMP Files,?JPG Files,?PNG Files,?TIFF Files
Detection Method:Fluorescent
Dimensions:36 cm (14 in) (W) x 58 cm (23 in) (H) x 47 cm (19 in) (D)
Display Interface:15-inch color monitor,?Adjustable tilt
For Use With (Equipment):Fluorescence Microscope
Format:Specific Holder Attachments
Frequency:50?60 Hz
Input Voltage:100-240 VAC
Objectives:5 Objective Turret
Product Line:EVOS?
Product Size:1 each
Stage:Mechanical stage with X-Y axis fine-positioning controls
Weight:15.3 kg (33.7 lbs)


推薦新聞
地址:中國·上?!て謻|區(qū)-浦東新區(qū)康橋路787號5號樓159室
電話:021-64396663
Copyright@ 2015-2016 北京照生行儀器設備有限公司
傳真:+86 0755-2788 8009
郵編:330520