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2018 - 11 - 08
2018年10月31日-11月2日,北京照生行仪器设备有限公司在上海新国际展览中心E2-2380馆亮相2018慕尼黑上海生化分析展。                                                                                   目前,作为美国Labconco公司在中国的独家代理商,为全国范围内的客户提供Labconco公司的全线产品——冷冻干燥系统、生物安全柜、洗瓶机、离心浓缩仪、样品快速蒸发系统、通风橱、动物柜、手套箱等。金牌级别的销售为您保“价”护航。此次展会,小佑很荣幸的去到上海这座魔都支持展会活动。在慕尼黑生化分析展开始前,小佑给大家展示过我们展台的效果图,今天小佑带大家欣赏我们展台搭建的实体效果噻!就说美不美?展会期间我们将冷冻干燥系统、离心浓缩系统、生物安全柜和洗瓶机的系列产品携带于展会。让更多的观...
2
2019 - 02 - 01
复旦大学类脑智能科学与技术研究院冯建峰团队对来自英美等 6 个国家、20 余所研究机构超过 1 万例影像遗传学数据进行计算分析,通过全脑全基因组范围的 “广泛搜索”,发现与青春期大脑壳核体积相关的基因位点同时也是精神分裂症的风险位点。该成果近日发表于《美国医学会杂志—精神病学卷》。“这项研究证明青春期大脑壳核体积异常和精神分裂症致病风险高度相关。” 冯建峰表示,该发现有望帮助科学家揭示精神分裂症发病机制,为临床症状出现之前的超前干预研究提供新思路。精神疾病防治是当今世界各国面临的共同难题。据报道,在中国,精神疾病已超过心脑血管疾病和恶性肿瘤,成为医疗体系的最大负担。“大脑在不同年龄受不同遗传信息影响,此前的研究未严格控制这一混杂因素,导致重要的遗传信号被‘淹没’。” 论文第一作者、复旦大学类脑智能科学与技术研究院副研究员罗强告诉《中国科学报》,研究团队选取了 14 岁健康青少年脑结构影像数据,同时突破了传统的解剖学脑区划分限制,在全脑全基因组范围内开展无偏的探索性研究,首次找到了青少年大脑结构与基因位点之间最为显著的关联关系。同时针对该结果,研究人员进一步开展了孟德尔随机化分析,发现了一条基因—大脑—精神分裂症的新通路。“这项研究的突破主要基于对来自全球范围的多中心影像遗传学数据进行计算分析,这些全维度标准化大数据的获取,得益于多年来我们在全世界范围内深入开展的国际合作研究。” 冯...
3
2019 - 06 - 18
和50年前相比,现在人们日常卡路里摄入更多,平均每天高出650大卡,相当于每天多吃了一顿有汉堡、薯条和可乐的套餐,约占男性和女性每日所需食物能量的1/4和1/3。这些多余的卡路里不仅体现在越来越多人圆滚的腰围上,根据澳大利亚国立大学(Australian National University,ANU)的专家提醒,更会对我们的大脑带来“毁灭性”的影响。ANU团队的最新研究显示,由于不健康生活方式,大脑功能衰退可能比我们想象得更早。研究结果近日发表在Frontiers in Neuroendocrinology。根据世界卫生组织的数据,全球约有39%的成人超重,13%的成人肥胖。作为超重和肥胖的常见健康后果之一,2型糖尿病在2030年将影响约10%的成人。众所周知,2型糖尿病与大脑健康受损、认知功能退化有关,神经损伤也是糖尿病的并发症之一。那么,在还没有出现高血糖等符合糖尿病诊断的症状时,神经退行性病变和认知障碍是否也已经处于病理过程中了?又与哪些导致血糖变化的因素有关?研究团队回顾了近200项相关的国际研究,结果表明,即便是非糖尿病人群,由于血糖偏高和肥胖而导致的神经病变也在非常早期就开始了,并且从那时起就开始影响大脑健康和认知功能。比如,一项涉及澳大利亚超过7000人的PATH研究显示,哪怕血糖值尚且在正常范围内,但血糖偏高的人群,大脑中海马和杏仁核普遍萎缩更多,4年内体积约缩小...
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产品名称:

EVOS™ 4X Objective, achromat, LWD, phase-contrast

上市日期: 2019-04-11
产品类别: EVOS

规格

For Use With (Equipment):EVOS® FL Auto Imaging System, EVOS® FL Color Imaging System, EVOS® FL Imaging System, EVOS® XL Core Imaging System, EVOS® XL Imaging System
Lens Type:Plan Achromat
Magnification:4X
Product Line:EVOS®
Product Size:1 each
Quantity:1 each
Type:Objective Lens


  • 产品描述
  • 产品功能
  • 产品参数

描述

This achromat objective is ideal for general applications. This is a long working distance (LWD) objective that is optimized for the imaging of slides, cell culture dishes and flasks, and microtiter plates. This is also a phase-contrast objective, making it useful for hard-to-see, translucent speciments. All EVOS® objectives offer outstanding optical performance from visible light to near infrared light. The extensive choice of objectives satisfies needs across the spectrum of magnifications and optical specifications.

Additional characteristics of this EVOS® objective:

• Magnification: 4X
• Numerical Aperture: 0.13
• Working Distance: 16.9 mm

Image Quality
Microscope objectives may be the most important components of an optical microscope because they are responsible for primary image formation. Image quality is crucial to experimental success and a requirement for publication; EVOS® objectives afford that quality across the visible spectrum to near infrared light. This performance results from years of lens manufacture perfection. EVOS® objectives have the same or better numerical apertures as any other manufacturer's in the same class, and the broad selection means you have choices for your imaging requirements.

Objective Classes

Achromat objectives are perfect for general applications, with standard correction of color and focus.

Fluorite objectives deliver excellent resolution and are made with higher numerical apertures than achromat objectives, resulting in brighter fluorescence signal and higher contrast imaging. The higher optical quality greatly reduces optical aberrations, and corrections for color and focus are at higher levels than achromat objectives. Fluorite objectives are ideally suited for fluorescence and demanding transmitted light applications, where the higher contrast make them ideally suited for color imaging.

Apochromat objectives are manufactured to the highest levels of resolution, fluorescence brightness, and contrast; chromatic aberrations are almost eliminated. They are recommended for the most demanding applications, particularly at magnifications of 60x and above. Apochromatic objectives are the best choice for the capture of color images in white light.

Brightfield Contrast versus Phase Contrast Objectives
Brightfield is the most basic form of light microscopy and is accomplished by sample absorption of light. A higher density area in a sample will absorb more light, thus increasing contrast in those areas.

Phase contrast objectives are most useful for hard to see, translucent specimens. This method of contrast is accomplished by converting phase shifts, caused by light passing through a translucent specimen, into brightness changes (i.e., contrast).

Long Working Distance versus Coverslip-Corrected Objectives
Long working distance (LWD) objectives are optimized for use through vessels with a nominal wall thickness of 0.9-1.5 mm. This includes vessels commonly used in cell culture and cell-based assays, such as slides, cell culture dishes and flasks, microtiter well plates, etc. Coverslip-corrected objectives are optimized for use through #1.5 coverslips (thickness approximately 0.17 mm). These objectives have a higher magnification/NA ratio and provide higher resolution compared to LWD objectives.

For additional choices, visit the EVOS® Objectives selection guide
Explore the entire EVOS® line of imaging systems and accessories


规格

For Use With (Equipment):EVOS® FL Auto Imaging System, EVOS® FL Color Imaging System, EVOS® FL Imaging System, EVOS® XL Core Imaging System, EVOS® XL Imaging System
Lens Type:Plan Achromat
Magnification:4X
Product Line:EVOS®
Product Size:1 each
Quantity:1 each
Type:Objective Lens


规格

For Use With (Equipment):EVOS® FL Auto Imaging System, EVOS® FL Color Imaging System, EVOS® FL Imaging System, EVOS® XL Core Imaging System, EVOS® XL Imaging System
Lens Type:Plan Achromat
Magnification:4X
Product Line:EVOS®
Product Size:1 each
Quantity:1 each
Type:Objective Lens


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