5-CFDA-AM	5-Carboxyfluorescein Diacetate Acetoxymethyl Ester (fluorescent viability dye activated by intracellular esterases)
8-OHdG	8-Hydroxy-2′-deoxyguanosine (oxidative DNA damage biomarker)
8-dG	8-deoxyguanosine (oxidative DNA lesion, precursor form measured in DNA damage studies)
A/G	Albumin/Globulin ratio (serum protein ratio)
AEAPS	N-(2-aminoethyl)-3-aminopropyl trimethoxysilane (surface coating agent for nanoparticles)
ALB	Albumin (major serum protein)
ALP	Alkaline Phosphatase (enzyme, liver/bone function marker)
ALT	Alanine Aminotransferase (hepatic enzyme, liver function marker)
AO/EB	Acridine Orange/Ethidium Bromide (dual-staining method to distinguish viable from apoptotic/necrotic cells)
APTMS	(3-Aminopropyl)trimethoxysilane (silane coupling agent introducing amine groups)
AST	Aspartate Aminotransferase (hepatic enzyme, liver function marker)
ATP	Adenosine Triphosphate (primary energy carrier in cells)
BMP6	Bone Morphogenetic Protein 6 (regulator of systemic iron metabolism)
BSA	Bovine Serum Albumin (protein used as nanoparticle coating)
BUN	Blood Urea Nitrogen (biochemical marker of kidney function)
CAM assay	Chorioallantoic Membrane assay (in ovo method for testing angiogenesis, toxicity, and nanoparticle effects)
CCK-8	Cell Counting Kit-8 (commercial assay kit using WST-8 for cell viability measurement)
CD11b	Cluster of Differentiation 11b (integrin alpha M chain, expressed on monocytes, macrophages, NK cells, granulocytes)
CD14	Cluster of Differentiation 14 (co-receptor for bacterial lipopolysaccharide, monocyte/macrophage marker)
CD4+	Cluster of Differentiation 4 positive (marker of helper T lymphocytes)
CD86	Cluster of Differentiation 86 (co-stimulatory molecule expressed on antigen-presenting cells, involved in T-cell activation)
CRE	Creatinine (biochemical marker of kidney function)
Calcein-AM	Calcein Acetoxymethyl Ester (cell-permeant, non-fluorescent dye converted by esterases to fluorescent calcein in viable cells)
Ca2+-ATPase	Calcium Adenosine Triphosphatase (ATP-dependent calcium pump in membranes)
DBIL	Direct Bilirubin (conjugated bilirubin marker)
DCF	2′,7′-Dichlorofluorescein (fluorescent oxidation product used as ROS indicator)
DCF assay	Dichlorofluorescein assay (fluorometric method for measuring intracellular ROS generation)
DCFDA	2′,7′-Dichlorofluorescin Diacetate (fluorescent probe for intracellular ROS, also called H2DCFDA, DCFH-DA, or DCFH)
DCFH-DA/DCFH	2′,7′-Dichlorodihydrofluorescein Diacetate (alternative abbreviations for DCFDA)
DEX	Dextran (polysaccharide used as nanoparticle coating)
DLP	Digital Light Processing (light-based 3D bioprinting method using projected light for layer curing)
DMSA	Dimercaptosuccinic Acid (chelating agent used for nanoparticle coating)
DMSO	Dimethyl Sulfoxide (solvent used to dissolve formazan products in MTT assay)
DMT1	Divalent Metal Transporter 1 (iron transporter protein)
DPPC	1,2-Dipalmitoyl-sn-glycero-3-phosphocholine (major phospholipid component of cell membranes; model bilayer system)
DSPE-PEG	1,2-Distearoyl-sn-glycero-3-phosphoethanolamine-Polyethylene Glycol (lipid–PEG conjugate for nanoparticle coating)
Dh	Hydrodynamic diameter (effective particle size in suspension)
ECM	Extracellular Matrix (network of proteins and polysaccharides that provides structural and biochemical support to cells)
EDD	Embryonic Development Day (day of embryo development, used to standardize in ovo experiments)
ELISA	Enzyme-Linked Immunosorbent Assay (plate reader often used for colorimetric absorbance measurement)
EMA	European Medicines Agency
EPR/ESR	Electron Paramagnetic Resonance/Electron Spin Resonance (spectroscopic methods for detecting free radicals and NO)
ESR	Erythrocyte Sedimentation Rate (non-specific marker of inflammation)
EURL ECVAM	European Union Reference Laboratory for Alternatives to Animal Testing/European Centre for the Validation of Alternative Methods
FACS	Fluorescence-Activated Cell Sorting (method for multiparametric single-cell analysis and sorting)
FDA	U.S. Food and Drug Administration
FITC	Fluorescein Isothiocyanate (fluorescent dye commonly used for labeling biomolecules, here dextran-coated MNPs)
FMR	Ferromagnetic Resonance (spectroscopic technique for detecting magnetic nanoparticle distribution in tissues)
G6PD	Glucose-6-Phosphate Dehydrogenase (enzyme supporting antioxidant defenses via NADPH regeneration)
GGT	Gamma-Glutamyl Transferase (enzyme, liver function marker)
GLB	Globulin (serum protein fraction)
GMNPs	GoldMag Nanoparticles (superparamagnetic core/shell nanoparticles with Fe3O4 core and gold shell)
GPx	Glutathione Peroxidase (antioxidant enzyme)
GR	Glutathione Reductase (enzyme regenerating reduced glutathione)
GelMA	Gelatin Methacryloyl (biocompatible hydrogel commonly used as bioink in tissue engineering)
H&E	Hematoxylin and Eosin staining (routine histological staining method)
HA	Hyaluronic Acid (glycosaminoglycan used for nanoparticle coating/targeting)
HEC	Hydroxyethyl Cellulose (cationic biopolymer used for nanoparticle functionalization)
HPLC	High-Performance Liquid Chromatography (analytical separation technique)
H2DCFDA	2′,7′-Dichlorodihydrofluorescein Diacetate (reduced form of DCFDA)
IFC	Imaging Flow Cytometry (hybrid technique combining flow cytometry with high-resolution microscopy for single-cell imaging and quantitative analysis)
IL-6	Interleukin-6
INT	2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazolium (iodonitrotetrazolium, tetrazolium salt used in LDH assays)
ISC machinery	Iron–Sulfur Cluster assembly machinery (system for Fe–S cluster biogenesis)
LDH	Lactate Dehydrogenase (enzyme, cytotoxicity/necrosis marker)
LD50	Median Lethal Dose (dose required to kill 50% of a test population)
LIP	Labile Iron Pool (cytosolic pool of weakly bound iron ions)
LPA	Lymphocyte Proliferation Assay (in vitro immunotoxicity test measuring clonal expansion of lymphocytes)
MMP	Mitochondrial Membrane Potential (indicator of mitochondrial integrity and function)
MNP(s)	Magnetic Nanoparticle(s)
MPI	Magnetic Particle Imaging
MPT	Mitochondrial Permeability Transition (process involving opening of the mitochondrial permeability transition pore)
MRI	Magnetic Resonance Imaging
MTS	3-(4,5-Dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (tetrazolium compound used in colorimetric assays)
MTT	3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (tetrazolium salt used in cell viability assays)
Mg2+-ATPase	Magnesium Adenosine Triphosphatase (ATP-dependent magnesium transport enzyme)
MitoSOX™ Red (Mito-HE)	Mitochondria-targeted hydroethidine probe (dihydroethidium derivative conjugated with triphenylphosphonium cation, specific for mitochondrial superoxide detection)
NADH	Nicotinamide Adenine Dinucleotide (reduced form; electron donor in metabolic reactions)
NADPH	Nicotinamide Adenine Dinucleotide Phosphate (reduced form; cofactor in biosynthetic reactions)
NAD+	Nicotinamide Adenine Dinucleotide (oxidized form)
NAM(s)	New Approach Methodologies
NCC	Nanocrystalline Cellulose (anionic biopolymer, nanoparticle coating material)
NCOA4	Nuclear Receptor Coactivator 4 (mediator of ferritinophagy)
NRU	Neutral Red Uptake assay (colorimetric cytotoxicity assay measuring lysosomal activity)
Na+/K+-ATPase	Sodium-Potassium Adenosine Triphosphatase (membrane ion pump maintaining Na+/K+ gradients)
OECD	Organization for Economic Co-operation and Development
PDI	Polydispersity Index (measure of particle size distribution uniformity, obtained by DLS)
PEG	Polyethylene Glycol (polyether polymer used for nanoparticle surface modification)
PEI	Polyethylenimine (cationic polymer used for nanoparticle coating/transfection)
PES	Phenazine Ethosulfate (alternative electron coupling reagent in tetrazolium assays)
PET	Positron Emission Tomography
PI	Propidium Iodide (fluorescent dye binding nucleic acids in non-viable cells)
PLGA	Poly(lactic-co-glycolic acid) (biodegradable copolymer used for nanoparticle coatings)
PMN	Polymorphonuclear leukocytes (granulocytes, a subtype of white blood cells)
PMS	Phenazine Methosulfate (electron coupling reagent in tetrazolium assays)
PT pore	Permeability Transition pore (non-specific mitochondrial pore enabling solute passage < 1500 Da)
PVA	Poly(vinyl alcohol) (synthetic polymer used as nanoparticle coating)
PVP	Poly(vinylpyrrolidone) (synthetic polymer used as stabilizer and nanoparticle coating)
Pi	Inorganic Phosphate (direct product of ATP hydrolysis, measured colorimetrically in ATPase activity assays)
RBCs	Red Blood Cells (erythrocytes)
RNA-seq	RNA sequencing (high-throughput transcriptomic profiling technique)
RNS	Reactive Nitrogen Species
ROS	Reactive Oxygen Species
RT-CES	Real-Time Cell Electronic Sensing (impedance-based cytotoxicity assay)
SCGE	Single-Cell Gel Electrophoresis (formal name of the comet assay, DNA damage detection method)
SEM	Scanning Electron Microscopy
SIM	Structured Illumination Microscopy (super-resolution fluorescence microscopy technique)
SLA	Stereolithography (light-based 3D bioprinting method using photopolymerization)
SMAD	SMAD family proteins (signal transducers in BMP/TGF-β pathways)
SMART	Somatic Mutation and Recombination Test
SOD	Superoxide Dismutase (antioxidant enzyme)
SOPs	Standard Operating Procedures (standardized, detailed instructions ensuring reproducibility and consistency in experimental protocols)
SPECT	Single Photon Emission Computed Tomography
STEAP3	Six-Transmembrane Epithelial Antigen of Prostate 3 (lysosomal ferrireductase enzyme)
TBIL	Total Bilirubin (serum bilirubin marker)
TEM	Transmission Electron Microscopy
TEOS	Tetraethyl Orthosilicate (silica precursor used for hydroxyl surface functionalization)
TP	Total Protein (serum protein marker)
TRPML1/MCOLN1	Transient Receptor Potential Mucolipin 1 (endolysosomal ion channel protein)
TUNEL	Terminal deoxynucleotidyl transferase dUTP Nick End Labeling (assay for detecting single- and double-stranded DNA breaks)
UA	Uric Acid (serum biochemical marker)
WBC	White Blood Cell count
WST	Water-Soluble Tetrazolium (family of tetrazolium salts used in viability assays)
WST-1	2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium (mitochondrial activity-based viability assay reagent)
WST-8	2-(2-Methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium (high-sensitivity tetrazolium salt for viability assays)
XTT	2,3-Bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (water-soluble tetrazolium salt used for viability assays)
cGMP	current Good Manufacturing Practice
qRT-PCR	Quantitative Reverse Transcription Polymerase Chain Reaction (technique for quantifying mRNA expression)
3H-thymidine	Tritiated Thymidine (radioactive thymidine analog used to measure DNA synthesis and cell proliferation/apoptosis)
ζ (zeta potential)	Zeta Potential (indicator of surface charge and colloidal stability of nanoparticles)
Cell Lines and Biological Models
A172	Human glioblastoma cell line, model for brain tumor research and drug sensitivity testing
A549	Human lung adenocarcinoma epithelial cell line
AdSCs	Adult Stem Cells (tissue-specific stem cells with limited differentiation potential)
Balb/c mice	Inbred mouse strain, frequently used in immunological and toxicological studies
C57BL/6 mice	Inbred mouse strain, most commonly used model organism in immunology, oncology, and metabolism research
CE	Chicken Embryo (experimental model used in in ovo studies with CAM)
DCs (monocyte-derived dendritic cells)	Human dendritic cells differentiated from monocytes, model for immune function and immunotoxicity
Fibrosarcoma cells	Human fibrosarcoma cell line (malignant connective tissue–derived)
HEK293	Human embryonic kidney cell line, widely used as a model for transfection, gene expression, and toxicology assays
HeLa	Human cervical cancer cell line, classical model in oncology, virology, and cytotoxicity testing
Hep3B	Human hepatocellular carcinoma cell line
HepG2	Human hepatocellular carcinoma cell line, model for hepatocyte metabolism, drug toxicity, and genotoxicity studies
hFOB	Human Fetal Osteoblast (cell line derived from human fetal bone tissue)
Human aortic endothelial cells	Primary human endothelial cells derived from the aorta
Human coronary artery endothelial cells	Primary human endothelial cells derived from coronary artery
Human monocyte-derived dendritic cells	Dendritic cells differentiated in vitro from primary human monocytes
Human skin fibroblasts	Primary or immortalized fibroblast cells derived from human skin
Human umbilical vein endothelial cells (HUVECs)	Primary human endothelial cells derived from umbilical vein
HUVECs	Human Umbilical Vein Endothelial Cells
L929	Mouse fibroblast cell line, widely used in cytotoxicity and biocompatibility assays
LNCaP	Human prostate cancer cell line (lymph node metastasis of prostate adenocarcinoma), androgen-sensitive model
MCF-7	Human breast cancer adenocarcinoma cell line, estrogen receptor–positive model for breast cancer studies
NIH3T3	Mouse embryonic fibroblast cell line, commonly used as a model for fibroblast proliferation and transformation
Normal fibroblasts	Primary or immortalized fibroblast cells (normal human connective tissue–derived fibroblasts)
Normal fibroblasts	Human fibroblast cell line (non-transformed connective tissue cells)
Pancreatic islet organoids	3D in vitro organoid model derived from pancreatic islet cells, used to study insulin secretion and metabolic function
Patient-derived pancreatic ductal adenocarcinoma organoids	Organoids cultured from human pancreatic ductal adenocarcinoma tissue, preserving tumor-specific features
Primary rat hepatocytes	Primary liver parenchymal cells isolated from rat
PSCs	Pluripotent Stem Cells (stem cells capable of differentiating into all three germ layers: endoderm, mesoderm, ectoderm)
SH-SY5Y	Human neuroblastoma cell line, model for neuronal differentiation and neurotoxicity
SHR (Spontaneously Hypertensive Rats)	Rat model of essential hypertension
SK-Hep-1	Human liver adenocarcinoma cell line (often used as hepatoma model)
THP-1	Human monocytic leukemia cell line, widely used to study monocyte/macrophage biology, immune activation, and nanoparticle uptake
U251	Human glioblastoma cell line
WKY (Wistar–Kyoto) rats	Normotensive rat strain, standard control in cardiovascular research
Zebrafish embryos	Widely used vertebrate model in developmental biology and nanotoxicology, transparent and genetically tractable