AA	Amino Acid
ALA	AminoLevulinic Acid
ALAS	AminoLevulinic Acid Synthase
CHY	α-Chymotrypsin
CO	Carbon monoxide
CO2	Carbon dioxide
DAMPs	Damage-Associated Molecular Patterns
DHp	Dimerization histidine phosphotransfer
DNA	DeoxyRibonucleic Acid
DWF	Dual Wavelength Fluorescence
FhtR	Faecalis heme transport Regulator
FOBT	Fecal Occult Blood Test
FRET	Fluorescence Resonance Energy Transfer
HAMP	Histidine kinase, Adenylate cyclase, Methyl-accepting protein and Phosphatase domain
HatR	Heme-activated transporter Regulator
hatRT	Heme-activated transporter Regulator/ Transporter operon
Hb	Hemoglobin
Hp	Haptoglobin
HPLC	High Performance Liquid Chromatography
HO-1	Heme-Oxygenase 1
HRP	HorseRadish Peroxidase
HrtBA	Heme-regulated transporter
HrtR	Heme-regulated transcriptional Regulator
HsmR	Heme-sensing membrane Regulator
hsmRA	Heme-sensing membrane protein system
HssS	Heme sensor system Sensor
HssR	Heme sensor system Regulator
Hx	Hemopexin
iFOBT	Immunological Fecal Occult Blood Test
IL	Interleukin
IMBED	Ingestible Micro-Bio-Electronic Device
MALDI-TOF	Matrix-Assisted Laser Desorption/Ionization Time-of-Flight
MarR	Multiple antibiotic resistance Regulator
MFS	Major Facilitator Superfamily
MS	Mass Spectrometry
NFkB	Nuclear Factor-kappa B
NO	Nitric Oxide
O2	Dioxygen
PAA	PolyAcrylic Acid
PCT	Porphyria Cutanea Tarda
Pef	Porphyrin efflux
PefAB	Porphyrin efflux transporter AB
PefCD	Porphyrin efflux transporter CD
PefR	Porphyrin efflux Regulator
PBG	Porphobilinogen
PPIX	Protoporphyrin IX
ROS	Reactive Oxygen Species
SCD	Sickle Cell Disease
SPR	Surface Plasmon Resonance
SERS	Surface-Enhanced Raman Scattering
TA Microscopy	Transient Absorption Microscopy
TetR	Tetracycline Repressor
TNF	Tumor Necrosis Factor
TLR4	Toll-Like Receptor 4
RP-HPLC	Reverse Phase-High Performance Liquid Chromatography
UPLC	Ultra Performance Liquid Chromatography