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Calcium Assay Service
Introduction
Our Calcium Assay Service monitors intracellular calcium dynamics, enabling non-invasive detection of neuronal firing and synaptic connectivity to generate high-value functional data for central nervous system drug development. Creative Biolabs leverages advanced human iPSC-derived co-culture technology and rigorous assay methodologies to efficiently accelerate neuropharmaceutical research and development.
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Calcium Assay Service
Calcium ions serve as a key neuronal second messenger, regulating synaptic transmission, excitability, and neurotransmitter release. Dysregulated calcium homeostasis is associated with neurodegeneration and neurological diseases. Calcium assays quantify real-time calcium dynamics to evaluate neuronal function, drug efficacy, and synaptic abnormalities.
![Neuronal mechanisms of sensitivity to extracellular calcium ([Ca2+]o). (OA Literature)](static/img/3-2-1-calcium-assay-1.jpg)
Fig.1 Neuronal Pathways Mediating Sensitivity to Extracellular Calcium.1
What is Calcium Assay?
Calcium assays are widely applied to evaluate neuronal excitability, synaptic transmission, and neural network activity. They help assess drug effects, analyze calcium homeostasis disorders, and reveal pathological mechanisms in neurodegenerative and neurological diseases. Our service provides a variety of reliable detection methods, which are specifically listed as follows:
- Fluorescent Probe-Based Detection: Utilize fluorescent probes (e.g., Fura-2, Indo-1) to label cells, enabling real-time visualization of intracellular calcium concentration changes and dynamic tracking.
- Flow Cytometry Detection: Employ flow cytometry to quantitatively analyze calcium levels in single cells, ensuring high throughput and accurate data acquisition.
- High-Throughput Imaging Detection: Adopt high-resolution imaging systems to capture calcium dynamics in real time, supporting large-scale sample testing.
- Our Calcium Assay Service: Creative Biolabs offers a simple, quantitative calcium measurement method for biological fluids. N,N,N',N'-tetrakis-(2-pyridylmethyl) ethylenediamine (TPEN) eliminates interference from other divalent metals (e.g., zinc). Our proprietary probe binds specifically to calcium cations to produce a strong fluorescent signal, the intensity of which is directly proportional to calcium concentration and quantifiable via a microplate reader.
These detection methods are standardized and highly reproducible, providing stable and reliable data support for your research on neuronal function and drug screening.
Applications in Neuroscience Research
In neuroscience, calcium assay is a fundamental tool for exploring neuronal function and related disease mechanisms, with wide-ranging applications:
| Neuronal Excitability and Synaptic Transmission | Detect calcium influx during neuronal depolarization and synaptic vesicle release, evaluating the functional integrity of synapses and neuronal circuits. |
| Neurodegenerative Disease Modeling | Monitor abnormal calcium homeostasis in neurons derived from disease models (e.g., Alzheimer's disease, Parkinson's disease), providing insights into disease pathogenesis. |
| Neuropharmacology and Drug Screening | Evaluate the effects of candidate drugs on neuronal calcium signaling, screening compounds that regulate neuronal activity or reverse abnormal calcium dynamics. |
| Neuronal Development and Differentiation | Track calcium signaling changes during neuronal differentiation and maturation, exploring the role of calcium in neuronal development. |
| Sensory and Motor Neuronal Function | Analyze calcium responses in sensory neurons (e.g., pain-sensing neurons) and motor neurons, studying their functional characteristics and regulatory mechanisms. |
With professional technical support and standardized experimental protocols, Creative Biolabs' Calcium Assay service provides a reliable solution for your neuroscience research, helping you unlock the mechanisms of neuronal function and accelerate the development of neurotherapeutics.
Workflow
Our streamlined process ensures that your project moves from cell preparation to actionable data with maximum efficiency and scientific rigor.
What We Can Offer
At Creative Biolabs, we go beyond standard assays by providing a full-scale, industrial-grade suite of capabilities tailored to the most demanding neuroscientific projects. Our Calcium Assay Service is backed by robust quality systems and a commitment to bespoke engineering.
End-to-End Assay Customization
Fully tailored protocols from cell line selection to custom algorithm development for unique kinetic signatures.
Scalable High-Throughput Screening
Ability to transition seamlessly from low-volume pilot studies to large-scale library screening in 384-well formats.
Defined Co-culture Systems
Precise control over neuron-to-glia ratios and maturation states, supported by proprietary media formulations.
Rigorous Quality Control
Every assay follows a well-established quality system including Quality-by-Design (QbD) and detailed aseptic verification procedures.
All-side Data Interpretation
Sophisticated biophysical analysis including network burst synchronization and inter-burst interval (IBI) quantification.
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Case Study
Researchers used NGN2-reprogrammed human iPSCs to generate GLUT excitatory neurons and established an RFP labeled neuronal‑astrocyte co‑culture model in 96/384‑well plates. Using calcium imaging, they monitored network calcium dynamics, cell distribution and activity, and optimized seeding density and drug responses. They found neuronal density correlated negatively with calcium discharge frequency and positively with amplitude. The optimized system formed stable, mature neural networks with dose‑dependent calcium responses, enabling high‑throughput neural function evaluation and CNS drug screening.
Fig.2 Using neurons derived from iPSCs for calcium detection.2
Customer Reviews
FAQs
Q: What is the advantage of using iPSCs over primary rodent neurons?
A: iPSCs provide a human-specific genetic background, avoiding the translatability issues often encountered when rodent-derived data fail to predict human clinical responses.
Q: Can you handle both acute and chronic drug treatments?
A: Yes, our platform supports both immediate kinetic responses and longitudinal studies spanning several weeks to observe chronic effects or maturation changes.
Q: Do you offer custom sensor integration?
A: We provide both chemical dye loading and stable CRISPR-engineered fluorescent calcium cell lines for more sensitive and repeatable measurements.
Creative Biolabs offers world-class expertise in functional CNS assays, providing the data depth required for modern drug discovery. Our team is ready to help you customize an assay that meets your specific research goals.
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References
- Nowacka, Agnieszka, Maciej Śniegocki, and Ewa A. Ziółkowska. "Calcium Dynamics in Astrocyte-Neuron Communication from Intracellular to Extracellular Signaling." Cells 14.21 (2025): 1709. Distributed under Open Access license CC BY 4.0, without modification. https://doi.org/10.3390/cells14211709.
- Haustein, Martin Dietrich, et al. "Development and characterization of a scalable calcium imaging assay using human iPSC-derived neurons." Frontiers in Cellular Neuroscience 19 (2025): 1701907. Distributed under Open Access license CC BY 4.0, the figure was cropped. https://doi.org/10.3389/fncel.2025.1701907.
For Research Use Only. Not For Clinical Use.