Capillary tube CCS-1M

Overview
The CCS-1M is an integrated expansion module for the PAT-1M Profile Analysis Tensiometer that enables controlled in-situ liquid exchange during pendant drop and buoyant bubble experiments. The module uses a coaxial measurement head and coordinated dual-syringe control to replace subphase liquids while preserving the existing interface for dynamic surface and interfacial tension studies.

Key features

• Coaxial double-capillary measurement head combining external and internal capillaries
• Two independently controlled syringes for coordinated injection and withdrawal
• Continuous tension monitoring during liquid exchange via the PAT-1M measurement and analysis system
• Programmable exchange sequences: define exchange volume, step size, timing and total experiment duration
• Integrated support for oscillation experiments and rheology workflows while exchanging liquids

Measurement capabilities

• Pendant drop experiments
• Buoyant bubble experiments
• Dynamic surface tension
• Dynamic interfacial tension
• In-situ subphase exchange (replace liquid inside a pendant drop or buoyant bubble while preserving the interface)
• Coaxial capillary measurements (external + internal capillaries in one head)
• Programmable liquid exchange sequences and automatic volume control
• Oscillation experiments combined with liquid exchange

Compatibility
Designed exclusively as an integrated expansion module for the PAT-1M Profile Analysis Tensiometer; shares the PAT-1M optical platform and software workflows for synchronized acquisition, control and analysis.

Applications

• Competitive adsorption studies (replacement of surface-active species during subphase exchange)
• Protein adsorption, desorption and exchange investigations
• Surfactant displacement analysis
• Interfacial kinetics and transient interfacial change monitoring
• Formulation development and evaluation of additive effects under dynamic exchange conditions
• Fundamental interface science: interfacial transport, adsorption dynamics and liquid exchange mechanisms

Technical details

• Capillary configuration: external and internal coaxial capillaries combined within a single measurement head
• Syringe control: two independently controlled syringes enabling coordinated injection and withdrawal
• Exchange principle: simultaneous injection and withdrawal to replace subphase without disrupting the interface
• Programmable parameters: exchange volume, step size, timing and experiment duration configurable via software timeline
• Optical platform: PAT-1M with integrated optical observation and image monitoring
• Integrated rheology workflows: combine liquid exchange with conventional oscillation experiments and area/volume control
• Accessories: coaxial capillaries and dual-syringe kit available
• Hardware components: control valve, electronic control unit and PAT-1M interface

Technical specifications

• Commercial designation: CCS-1M
• Capillary configuration: external and internal coaxial capillaries
• Syringe control: two independently controlled syringes
• Exchange principle: simultaneous injection and withdrawal
• Programmable parameters: volume, step size, timing and experiment duration
• Supported measurement modes: pendant drop, buoyant bubble, dynamic surface and interfacial tension, oscillation experiments with liquid exchange
• Optical platform / imaging: PAT-1M integrated optical observation
• Module integration: internal expansion module for PAT-1M
• Typical accessories: coaxial capillaries, dual-syringe kit