免校准生物型光镊-SENSOCELL
免校准生物型光镊-SENSOCELL

免校准生物型光镊-SENSOCELL



西班牙impetux公司推出的免校准生物型光镊-SENSOCELL,采用“光动量计算LIGHT MOMENTUM METHOD”技术, 解决了传统光镊校准繁琐、通量低、无法进行细胞内部力学测量的难题。SENSOCELL通过高度聚焦激光束产生的力来操控细胞内或者细胞外的微粒,并且结合力学检测系统和成像系统(如普通明场显微镜、共聚焦显微镜、超分辨显微镜),可以直观地对细胞或者组织进行分子层面的力学测量,广泛应用于细胞生物力学的研究,如:细胞膜动力学、细胞与细胞相互作用、细胞骨架、细胞硬度、单分子动力学等。

#

免校准光镊技术特点


▣ 光阱测量模块

• 专利力谱测量技术——LIGHT MOMENTUM METHOD(专利号:EP 2,442,316)

• 无需校准,直接测力;

• 最多支持256个独立光阱,每个光阱xy平面独立移动;

• 每个光阱单独测力;

• 可整合多种成像模式:如明场、EPI、TIRF、共聚焦等;

• 力学分辨率:<50 fN

• 样品定位精度:1 nm、位移精度:0.1 nm。


▣ 光阱生成模块

• 光阱激光:1064 nm单频率激光,超低背景;

• 光阱激光功率:3W;

• 2D 快速光阱操控 (高达 25 kHz);

• 独立光阱亚纳米精度精确控制;

• 工作视野:70 μm x 70 μm(60X 物镜下);

• 光阱刚度:3pN/mW·μm(1μm小球);

• 光阱轨迹:支持自主编程设计光阱运动轨迹和振荡轨迹。

undefined

左:光阱测量模块;右:光阱生成模块

■ 细胞核形变

SCIENCE:细胞核充当细胞形状变形的弹性机械转换器,并控制细胞的动态行为



■ 细胞质力学

Nature Physics:分裂过程中细胞内硬度降低和粘弹性流动性增加



■ 细胞膜动力学

Nature Physics:周期性障碍物调节膜张力传导,实现局部机械传递



■ 细胞膜动力学

巨型单层囊泡(giant unilamellar vesicles, GUVs)研究



■ 细胞相互作用

T细胞与肿瘤细胞相互作用




• Targeting ELOVL6 to disrupt c-MYC driven lipid metabolism in pancreatic cancer enhances chemosensitivity. Nature Communications (2025): https://doi.org/10.1038/s41467-025-56894-8

• Periodic Obstacles Regulate Membrane Tension Propagation to Enable Localized Mechanotransduction. Biorxiv (2025):https://doi.org/10.1101/2025.01.14.632796

• Measuring age-dependent viscoelasticity of organelles, cells and organisms with time-shared optical tweezer microrheology. Nature Nanotechnology (2025): DOI: 10.1038/s41565-024-01830-y

• Accessing activity and viscoelastic properties of artificial and living systems from passive measurement. Nature Materials (2024): https://doi.org/10.1038/s41563-024-01957-2

• A MEC-2/stomatin condensate liquid-to-solid phase transition controls neuronal mechanotransduction during touch sensing. Nature Cell Biology (2023): https://doi.org/10.1038/s41556-023-01247-0

• The laminin-keratin link shields the nucleus from mechanical deformation and signaling. Nature Materials (2023):  https://doi.org/10.1101/2022.03.01.482474

• Intracellular softening and increased viscoelastic fluidity during division. Nature Physics (2021). https://doi.org/10.1038/s41567-021-01368-z

• An asymmetric mechanical code ciphers curvature-dependent proprioceptor activity. SCIENCE ADVANCES (2021) DOI: 10.1126/sciadv.abg4617

• The force loading rate drives cell mechanosensing through both reinforcement and fluidization. Nature Communications (2021).  https://doi.org/10.1038/s41467-021-24383-3

• The nucleus measures shape changes for cellular proprioception to control dynamic cell behaviour. SCIENCE (2020) DOI: 10.1126/science.aba2644


用户评价



用户单位

相关新闻