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Merck

03-0202-00

SMC® Human NF-L High Sensitivity Immunoassay Kit

Used for ultrasensitive quantification of Human NF-L in human serum, plasma, and cerebrospinal fluid (CSF)

Synonym(s):

NF-L Single Molecule Counting kit, NF-L immunoassay kit, NF-L ultra-sensitive immunoassay, Neurofilament Light Chain kit, NfL kit

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About This Item

UNSPSC Code:
12161503
NACRES:
NA.77
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Quality Level

product line

SMC®

usage

 kit sufficient for 96 wells

species reactivity

human, human

manufacturer/tradename

SMC®

parameter

25 μL sample volume (CSF)
50 μL sample volume (serum and plasma)

technique(s)

single molecule counting: suitable

input

plasma (K2 EDTA)
cerebrospinal fluid (CSF)
serum
plasma (K2 EDTA)
cerebrospinal fluid (CSF)
serum

UniProt accession no.

compatibility

for use with FemtoQuest and SMCxPRO® instruments

shipped in

wet ice

storage temp.

2-8°C

General description

Neurofilament light chain (NF-L) is a critical component of the neurofilament cytoskeleton in neurons, providing structural support and maintaining neuronal integrity. As part of the larger family of neurofilament proteins, NF-L, along with neurofilament medium chain (NF-M) and neurofilament heavy chain (NF-H), contributes to the formation of intermediate filaments that are essential for the structural stability of axons. NF-L plays an essential role in axonal transport, facilitating the movement of organelles and proteins along the axon, which is vital for neuronal function and communication.

Additionally, NF-L participates in the response to injury and stress, helping neurons adapt to changing conditions. Its presence in the central nervous system is crucial for maintaining the overall health and functionality of neurons. NF-L serves as a valuable biomarker for neuronal damage and neuroinflammation. Elevated levels of NF-L in cerebrospinal fluid (CSF) and blood indicate ongoing neurodegeneration and correlate with conditions such as Alzheimer′s disease, amyotrophic lateral sclerosis (ALS), and multiple sclerosis (MS). Additionally, increased NF-L levels often reflect the severity of neuroinflammatory processes. The measurement of NF-L is essential for developing therapeutic strategies aimed at preserving neuronal health and function in various neurological disorders.

Application

Alzheimer′s Disease / Aging / Nervous System / Neurodegenerative Diseases / Neurofilament & Neuron Metabolism / Neuronal & Glial Markers / Neurodegenerative Medicine / Neuroscience

Biochem/physiol Actions

Although NF-L was detectable in mouse, non-human primate (rhesus macaque and cynomolgus monkey), and canine samples, the assay has not been verified for these species.

Features and Benefits

  • High Sensitivity Detection: Precisely quantifies NF-L at femtogram/mL levels in serum, plasma or CSF.
  • Improved Dynamic Range: Enhanced signal-to-noise ratio, reducing background interference for reliable assay performance.
  • User-Friendly Workflow: Utilizes a familiar sandwich immunoassay format while ensuring high sensitivity detection.
  • Automation-Ready: Compatible with automated liquid handling systems, reducing manual steps and increasing lab efficiency.
  • Dedicated Technical Support: Backed by experts experienced in SMC® assay technology.

Packaging

96 well assay

Analysis Note

  • Sensitivity: LLOQ 870 fg/mL* (SMCxPRO® Instrument)
  • Standard Curve Range: 430-1,500,000 fg/mL
  • Intra-assay CV: <15%
  • Inter-assay CV: <20%
  • Linearity: Serum: 110% Plasma: 106% CSF: 101%
  • Recovery: Serum: 93% Plasma: 94% CSF: 123%
*Indicative LLOQ created from average of 14 independent in house runs, where >80% met same value defined with CV & Recovery +/- 20%. Refer to CoA for lot specific performance.
NeuroscienceNeurological DisordersNeurodegenerative DiseasesAlzheimer′s Disease

Legal Information

FEMTOQUEST is a trademark of Merck KGaA, Darmstadt, Germany
SMC is a registered trademark of Singulex
SMCxPRO is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Pictograms

Skull and crossbonesHealth hazard

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Irrit. 2 - Repr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

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PRTR

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FSL

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ISHL Indicated Name

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ISHL Notified Names

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Cartagena Act

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JAN Code

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Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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