2011 – Present

—————-

Recently, we have been developing novel fluorescence probes, focusing on two photon absorbing materials as well as bio- and nano materials. After synthesizing bioconjugated molecules of therapeutic activity and nano biosensors for early diagnosis of disease, we look for application of bio-imaging and disease diagnosis.

—————-

A General Strategy Toward pH-Resistant Phenolic Fluorophoresfor High-FidelitySensing and Bioimaging Applications

S. Sarkar,* A. Shil, S. Maity, Y. L. Jung, M. Dai, A. Acharya,* and K. H. Ahn*
Angew. Chem., 2023, e202311168.

Page Link

Strategies to convert organic fluorophores into red/near-infrared emitting analogues and their utilization in bioimaging probes

M. Dai, Y. J. Yang, S. Sarkar, and K. H. Ahn*
Chem. Soc. Rev.,  2023, 52, 6344–6358.

Page Link

Interactive Twin Intramolecular Hydrogen Bonds Enable Bright, S-Blue Emissive, Environment-Insensitive Single-Benzene Fluorophores

S. Sarkar, A. Shil, Y. W. Jun, Y. J. Yang, W. Choi, S. Singha,* and K. H. Ahn*
Adv. Funct. Mater. 2023, 2304507.

Page Link

Cell-Membrane-Localizing Fluorescence Probes for Aminopeptidase N

Y. J. Yang, M. Dai, and K. H. Ahn*
ACS Sens. 2023, 8, 2791–2798.

Page Link

Dissecting the Crosstalk between Bisulfite and Hypochlorous Acid in the Reaction-Based Fluorescence Detection with Dicyanovinyl-Based Probes

H. R. Kim, A. Shil, S. Sarkar*, and K. H. Ahn*
J. Org. Chem. 2023, 88, 5563–5571.

Page Link

A Small-Molecule Fluorescence Probe for Nuclear ATP

U. Tamima, S. Sarkar, M. R. Islam, A. Shil, K. H. Kim, Y. J. Reo, Y. W. Jun, H. Banna, S. Lee, and K. H. Ahn*
Angew. Chem.Int. Ed. 2023, 62,  e2023005.

Page Link

Rapid Point-of-Care Quantification of Human Serum Albumin in Urine Based on Ratiometric Fluorescence Signaling Driven by Intramolecular H-Bonding

S. Sarkar*, A. Shil, Y. L. Jung, S. Singha, and K. H. Ahn*
ACS Sens. 20227, 3790–3799.

Page Link

Fluorophore Labeling of Proteins: a Versatile Trigger–Release–Conjugation Platform Based on the Quinone Methide Chemistry

Y. L. Jung, S. Sarkar, J. Ha, S. B. Park, and K. H. Ahn*
Bioconjugate Chem. 202233, 1543–1551.

Page Link

Discrimination of Invasive Human Skin Tumor Using an Ultrafast ATP–Proton AND-Gate Probe

Y. W. Jun,* K. H. Kim, Y. J. Yang, Y. Jung, K. Kim, H. Kim, B. H. Oh,  K. H. Ahn*
ACS Sens. 2022, 7, 1068–1074.

Page Link

A π-Stacking Based Fluorescent Probe for Labeling of Flavin Analogues in Live Cells through Unusual FRET Process

S. Biswas, S. Sarkar,* A. Shil, T. S. Demina, K. H. Ahn,* and S. Bhuniya*
Anal. Chem. 2022, 94, 3494–3500.

Page Link

A Two-Photon Ratiometric Sensing Platform Based on Solid-State Luminescent Benzocoumarin: Application to Prolonged Bioimaging of Hydrogen Peroxide

H.R. Kim, S. Sarkar, and K. H. Ahn*
Chem. Asian J. 2022, 17, e202101317.

Page Link

Rationally Designed Two-Photon Ratiometric Elastase Probe for Investigating Inflammatory Bowel Disease

S. Sarkar,* A. Shil, M. Nandy, S. Singha, Y. J. Reo, Y. J. Yang, and K. H. Ahn*
Anal. Chem. 2022, 94, 1373−1381.

Page Link

Ratiometric Detection of Hypochlorous Acid in Brain Tissues of Neuroinflammation and Maternal Immune Activation Models with a Deep-Red/Near-Infrared Emitting Probe

K. H. Kim, S. J. Kim, S. Singha, Y. J. Yang, S. K. Park* and K. H. Ahn*
ACS Sens. 20216, 3253–3261.

Page Link

NAD(P)H Quinone Oxidoreductase-1 in Organ and Tumor Tissues: Distinct Activity Levels Observed with a Benzo-rosol-Based Dual-Excitation and Dual-Emission Probe

Y. J. Yang, M. Dai, Y. J. Reo, C. W. Song, S. Sarkar, and K. H. Ahn*
Anal. Chem. 2021 93, 7523–7531.

Page Link

Environment-insensitive two-photon ratiometric probe for in cellulo quantitative measurement of hydrogen peroxide

S. W. Cho, Y. W. Jun, Y. J. Reo, S. Sarkara and K. H. Ahn*
Results in Chemistry 20213, 100117–100122.

Page Link

Imidazolyl–benzocoumarins as ratiometric fluorescence probes for biologically extreme acidity

H. R. Kim, S. Sarkar, M. Nandy, and K. H. Ahn*
Spectrochimica acta. Part A, 2021248, 119088–119097.

Page Link

Structurally Compact, Blue–Green–Red Fluorescence Trackers for the Outer Cell Membrane: Zwitterionic (Naphthylvinyl)pyridinium Dyes

Y. J. Reo, S. Sarkar, M. Dai, Y. J. Yang, and K. H. Ahn*
ACS Appl. Bio Mater. 20214, 2089–2096.

Page Link

Toward Ratiometric Detection of NAD(P)H Quinone Oxidoreductase-1: Benzocoumarin-Based Fluorescent Probes

M. Dai, C. W. Song, Y. J. Yang, H. R Kim, Y. J. Reo, K. H. Ahn*
Sens. Actuators B Chem. 2021330, 129277–129286.

Page Link

A Study on Hypoxia Susceptibility of Organ Tissues by Fluorescence Imaging with a Ratiometric Nitroreductase Probe

S. Sarkar, H. Lee, H. G. Ryu, S. Singha, Y. M. Lee, Y. J. Reo, Y. W. Jun, K. H. Kim, W. J. Kim, and K. H. Ahn*
ACS Sens., 2021,  6, 148–155.

Page Link

Electronic Effects on the Depropargylation Process in the Reaction‐based Fluorescent Detection of Palladium Species: Benzocoumarin‐based Ratiometric Sensing Systems

S. W. Cho,  Y. J. Reo, S. Sarkar, and K. H. Ahn*
Bull. Korean Chem. Soc., 202142, 135–139.

Page Link

Development of Photo- and Chemo-stable Near-Infrared-Emitting Dyes: Linear-Shape Benzo-Rosol and Its Derivatives as Unique Ratiometric Bioimaging Platforms

M. Dai, Y. J. Reo, C. W. Song, Y. J. Yang, and K. H. Ahn*
Chem. Sci. 202011, 8901–8911.

Page Link

A benzo[b]xanthene-derived fluorescent probe capable of two-photon ratiometric imaging of lysosomal cysteine with high specificity

U. Tamima, C. W. Song, M. Santra, Y. J. Reo, H. Banna, M. R. Islam, and K. H. Ahn*
Sens. Actuators B Chem. 2020322, 128588–128597.

Page Link

Synthesis of Near‐Infrared‐Emitting Benzorhodamines and Their Applications to Bioimaging and Photothermal Therapy

M. Dai, H. Lee, Y. J. Yang, M. Santra,* C. W. Song, Y. W. Jun, Y. J. Reo, W. J. Kim,* and K. H. Ahn*
Chem. Eur. J. 202026, 11549–11557.

Page Link

Systematic study on discrepancy of fluorescent properties between in solutions and in cells: Super-bright, environment-insensitive benzocoumarin dyes. 

M. Dai, H. Lee, Y. J. Yang, M. Santra,* C. W. Song, Y. W. Jun, Y. J. Reo, W. J. Kim,* and K. H. Ahn*
Chem. Eur. J. 202026, Y. J. Reo, Y. W. Jun, S. W. Cho, J. Jeon, H. Roh, S, Singha, M. Dai, S. Sarkar, H. R. Kim, S. Kim, Y. Jin, Y. L. Jung, Y. J. Yang , C. Ban, J. Joo, K. H. Ahn
Chem. Commun. 202056, 10556-10559.

Page Link

Cell-Membrane-Localizing, Two-Photon Probe for Ratiometric Imaging of γ-Glutamyl Transpeptidase in Cancerous Cells and Tissues

Y. J. Reo, M. Dai, Y. J. Yang, and K. H. Ahn*
Anal. Chem. 202092, 18, 12678–12685.

Page Link

Bent‐Benzocoumarin Dyes that Fluoresce in Solution and in Solid State and Their Application to Bioimaging

M. Dai, S. Sarkar, C. W. Song, Y. J. Reo, Y. J. Yang, and K. H. Ahn*
ChemPhotoChem. 20204, 721–728.

Page Link

A Caveat to Common Hemicyanine Dye Components and Its Resolution

H. J. Park, C. W. Song, S. Sarkar, Y. W. Jun, Y. J. Reo, M. Dai, and K. H. Ahn*
Chem. Commun202056, 7025–7028.

Page Link

Frontiers in Probing Alzheimer’s Disease Biomarkers with Fluorescent Small-Molecules

Y. W. Jun, S. W. Cho, J. Jung, Y. Huh, Y. Kim,* D. Kim,* and K. H. Ahn*
ACS Cent. Sci. 20195, 209–217.

Page Link

Ratiometric Imaging of γ-Glutamyl Transpeptidase Unperturbed by pH, Polarity, and Viscosity Changes: A Benzocoumarin-Based Two-Photon Fluorescent Probe

Y. J. Reo, Y. W. Jun, S. Sarkar, M. Dai, and K. H. Ahn*
Anal. Chem. 2019, 91, 14101–14108.

Page Link

Far-red/near-infrared emitting, two-photon absorbing, and bio-stable amino-Si-pyronin dyes

K. H. Kim, S. Singha,* Y. W. Jun, Y. J. Reo, H. R. Kim, H. G. Ryu, S. Bhuniab, and K. H. Ahn*
Chem. Sci.201910, 9028–9037.

Page Link

An Endeavor in the Reaction-Based Approach to Fluorescent Probes for Biorelevant Analytes: Challenges and Achievements

S. Singha, Y. W. Jun, S. Sarkar, and K. H. Ahn*
Acc. Chem. Res. 2019, 52, 2571–2581.

Page Link

Modified Isoindolediones as Bright Fluorescent Probes for Cell and Tissue Imaging

O. Vakuliuk, Y. W. Jun, K. Vygranenko, G. Clermont, Y. J. Reo, M. Blanchard-Desce,* K. H. Ahn*
and D. T. Gryko*
Chem. Eur. J. 201925, 13354–13362.

Page Link

Ratiometric fluorescence detection of Cu(II) with a keto-dipicolylamine ligand: A mechanistic implication

S. W. Cho, A. S. Rao, S. Bhunia, Y. J. Reo, S. Singha,* and K. H. Ahn*
Sens. Actuators B Chem. 2019279, 204–212.

Page Link

A Benzopyronin-Based Two-Photon Fluorescent Probe for Ratiometric Imaging of Lysosomal Bisulfite with Complete Spectral Separation

U. Tamima, M. Santra,* C. W. Song. Y. J. Reo, and K. H. Ahn *
Anal. Chem. 201991, 10779–10785.

Page Link

A rationally designed polarity-viscosity sensitive probe for imaging lipid droplets

C. W. Song, U. Tamima, Y. J. Reo, M. Dai, S. Sarkar, K. H. Ahn 
Dyes. Pigm. 2019171, 107718-107725.

Page Link

Molecular Probes for Fluorescent Imaging of ATP in Cell and Tissue

Y. W. Jun, S. Sarkar, K. H. Kim, and K. H, Ahn*
ChemPhotoChem. 20193, 214–219.

Page Link

A Ratiometric Two-Photon Fluorescent Probe for Tracking Lysosomal ATP: Direct In Cellulo Observation of Lysosomal Membrane Fusion Processes

Y. W. Jun, T. Wang, S. Hwang, D. Kim, D. Ma, K. H. Kim, S. Kim, J. Jung, and K. H, Ahn* 
Angew.Chem. Int. Ed. 2018, 57,10142–10147.

Page Link

A benzocoumarin based two-photon fluorescent probe for ratiometric detection of bisulfite

U. Tamima, S. Singha,* H. R. Kim, Y. J. Reo, Y. W. Jun, A. Das, and K. H. Ahn* 
Sens. Actuators B Chem. 2018277, 576–583.

Page Link

Two-photon absorbing 8-hydroxy-benzo[g]coumarins with giant Stokes shifts: An environment-insensitive dye platform for probing biomolecules

S. Sarkar, M. Santra, S. Singha, Y. W. Jun, Y. J. Reo, H. R. Kim, K. H. Ahn*
J Mater Chem B20186, 4446–4452.

Page Link

Dual probing of redox species, NAD(P)H and HOCl, with a benzo[a]phenoxazine-based far red-emitting dye

M. Santra,* S. Sarkar, Y. W. Jun, Y. J. Reo, ad K. H. Ahn* 
Tetrahedron Lett. 2018, 59, 3210–3213.

Page Link

Exploration of Molecular Shape-Dependent Luminescence Behavior: Fluorogenic Organic Nanoparticles Based on Bent Shaped Excited-State Intramolecular Proton-Transfer Dyes

M. Santra, Y. W. Jun, Y. J. Reo, S. Sarkar, W. Choi, J. E. Kwon, S. Y. Park, and K. H. Ahn* 
ACS Appl. Bio Mater. 20181,136–145.

Page Link

Bidirectional Solvatofluorochromism of a Pyrrolo[3,2-B]pyrrole–diketopyrrolopyrrole Hybrid

H. G. Ryu, M. F. Mayther, J. Tamayo, C. Azarias, E. M. Espinoza, M. Banasiewicz, Ł. G. Łukasiewicz, Y. M.Poronik, A. Jeżewski, J. Clark, J. B. Derr, K. H. Ahn,* D. T. Gryko,* D. Jacquemin,* and V. I. Vullev,* 
J Phys Chem C2018122, 13424–13434.

Page Link

Two-photon fluorescent probe for hydrogen sulfide based on a red-emitting benzocoumarin dye

H. G. Ryu, S. Singha,* Y. W. Jun, Y. J. Reo, and K. H. Ahn*
Tetrahedron Lett. 201859, 49–53

Page Link

Amino Acid Restriction Triggers Angiogenesis via GCN2/ATF4 Regulation of VEGF and H2S Production

A. Longchamp, T. Mirabella, A. Arduini, M. R. MacArthur, A. Das, J. H. Treviño-Villarreal, C. Hine, I. Ben-Sahra, N. H. Knudsen, L. E. Brace, J. Reynolds, P. Mejia, M. Tao, G. Sharma, R. Wang, J. M. Corpataux, J. A. Haefliger, K. H. Ahn, C. Lee, B. D. Manning, D. A. Sinclair, C. S. Chen, C. K. Ozaki, and J. R. Mitchell*
Cell2018173, 117–129.

Page Link

Addressing the Autofluorescence Issue in Deep Tissue Imaging by Two-Photon Microscopy: Significance of Far-Red Emitting Dyes

Y. W. Jun, H. R. Kim, Y. J. Reo, M. Dai, and K. H. Ahn
Chem. Sci. 20178, 7696–7704.

Page Link

Fluorescent Labeling of Protein Using Blue-Emitting 8-Amino-BODIPY Derivatives

D. Kim,* D. Ma, M. Kim, Y. Jung, N. H. Kim, C. Lee, S. W. Cho, S. Park, Y. Huh,  J. Jung, and K. H. Ahn*
J. Fluoresc.  201727, 2231–2238. 

Page Link

Cardioprotective effect of the sdf-1α/cxcr4 axis in ischemic postconditioning in isolated rat hearts

J. S. Kim, Y. Jang, J. H. Kim, Y. H. Park, S. A. Hwang, J. Kim, S. R. Lee, Z. Xu, C. Ban, K. H. Ahn, and K. J. Chun*
Korean. Circ. J. 201747, 949–9959.

Page Link

A Two-Photon Fluorescent Probe for Ratiometric Imaging of Endogenous Hypochlorous Acid in Live Cells and Tissues

Y. W. Jun, S. Sarkar, S. Singha,* Y. J. Reo, H. R. Kim, J. J. Kim, Y. T. Chang,* and K. H. Ahn* 
Chem. Commun. 201753, 10800–10803.

Page Link

Two-Photon In Vivo Imaging with Porous Silicon Nanoparticle

D. Kim, D. J. Kang, T. Wang, H. G. Ryu, J. M. Zuidema, J. Joo, M. Kim, Y. Huh, J. Jung, K. H. Ahn, K. H. Kim,* and M. J. Sailor*
Adv. Mater. 201729, 1703309.

Page Link

Fluorescent Labeling of Lysine Residues in Protein Using 8-Thiomethyl-BODIPY

D. Kim,* S. W. Cho, Y. W. Jun, and K. H. Ahn* 
B Korean Chem. Soc. 201738, 995–996.

Page Link

Hypothalamic-Pituitary Axis Regulates Hydrogen Sulfide Production

C. Hine, H.-J. Kim, Y. Zhu, E. Harputlugil, A. Longchamp, M. S. Matos, P. Ramadoss, K. Bauerle, L. Brace, J. M. Asara, C. K. Ozaki, S. Cheng, S. Singha, K. H. Ahn, A. Kimmelman, F. M. Fisher, P. Pissios, D. J. Withers, C. Selman, R. Wang, K. Yen, V. D. Longo, P. Cohen, A. Bartke, J. J. Kopchick, R. Miller, A. N. Hollenberg,* and J. R. Mitchell* 
Cell Metab. 2017 25, 1320–1333.

Page Link

Symmetry Breaking in Pyrrolo[3,2-B]Pyrroles: Synthesis, Solvatofluorochromism and Two-Photon Absorption

Ł. G. Łukasiewicz, H. G. Ryu, A. Mikhaylov, C. Azarias, M. Banasiewicz, B. Kozankiewicz,* K. H. Ahn,* D. Jacquemin,* A. Rebane,* and D. T. Gryko*
Chem. Asian J. 201712, 1736–1748. 

Page Link

A Sensitive Fluorescent Probe for the Polar Solvation Dynamics at Protein–Surfactant Interfaces

P. Singh, S. Choudhury, S. Singha, Y. Jun, S. Chakraborty, J. Sengupta, R. Das,* K. H. Ahn, and S. K. Pal*
Phys. Chem. Chem. Phys. 2017,  19, 12237–12245.

Page Link

Ratiometric Fluorescence Detection of Anthrax Biomarker with EuIII-EDTA Functionalized Mixed Poly(diacetylene) Liposomes

H. Seo, S. Singha, K. H. Ahn* 
Asian J. Org. Chem. 20176, 1257–1263.

Page Link

Ratiometric Imaging of Tissue by Two-Photon Microscopy: Observation of a High Level of Formaldehyde around Mouse Intestinal Crypts

S. Singha, Y. W. Jun, J. Bae, and K. H. Ahn* 
Anal. Chem. 201789, 3724–3731.

Page Link

Water-Soluble Pyrrolo[3,2-B]Pyrroles: Synthesis, Luminescence and Two-Photon Cellular Imaging Properties

M. Santra, Y. W. Jun, J. Bae, S. Sarkar, W. Choi, D. T. Gryko,* and K. H. Ahn* 
Asian J. Org. Chem. 20176, 278–281.

Page Link

Lavender Violet, Blue and Pink: A New Type of Benzo[ a ]Phenoxazine-Based Dipolar, Red-Emitting Dyes

M. Santra, Y. W. Jun, Y. J. Reo, S. Sarkar, and K. H. Ahn* 
Dyes Pigm. 2017, 142, 161–166.

Page Link

Fine-Tuning of CD8 + T Cell Mitochondrial Metabolism by the Respiratory Chain Repressor MCJ Dictates Protection to Influenza Virus

D. P. Champagne, K. M. Hatle, K. A. Fortner, A. D’Alessandro, T. M. Thornton, R. Yang, D.Torralba, J. Tomás-Cortázar, Y. W. Jun, K. H. Ahn, K. C. Hansen, L. Haynes, J. Anguita, and M. Rincon*
Immunity201644, 1299–1311.

Page Link

Detection of Ciprofloxacin in Urine through Sensitized Lanthanide Luminescence

S. Singha, and K. H. Ahn*
Sensors201616, 2065. 

Page Link

A Fluorescent Probe for Bisulfite Ions: Its Application to Two-Photon Tissue Imaging

H. Agarwalla, S. Pal, A. Paul, Y. W. Jun, J. Bae, K. H. Ahn,* D. N. Srivastava, and A. Das*
J. Mater. Chem. B, 20164, 7888–7894.

Page Link

A Dipolar Anthracene Dye: Synthesis, Optical Properties and Two-Photon Tissue Imaging

H. Moon, Y. W. Jun, D. Kim,* H. G. Ryu, T. Wang, K. H. Kim, Y. Huh, J. Jung, and K. H. Ahn*
Chem. Asian J. 201611, 2518–2523.

Page Link

Thermally Induced Silane Dehydrocoupling on Silicon Nanostructures

D. Kim, J. Joo, Y. Pan, A. Boarino, Y. W. Jun, K. H. Ahn, B. Arkles,* and M. J. Sailor*
Angew. Chem. Int. Ed. 201655, 6423–6427.

Page Link

Dipolar Dyes with a Pyrrolo[2,3-b]Quinoxaline Skeleton Containing a Cyano Group and a Bridged Tertiary Amino Group: Synthesis, Solvatofluorochromism, and Bioimaging

Ł. G. Łukasiewicz, I. Deperasińska, Y. M. Poronik,Y. W. Jun, M. Banasiewicz, B. Kozankiewicz,* K. H. Ahn,* and D. T. Gryko*
Chem. Asian J. 2016, 11, 1718–1724.

Page Link

Close Correlation of Monoamine Oxidase Activity with Progress of Alzheimer’s Disease in Mice, Observed by in Vivo Two-Photon Imaging

D. K. Kim, S. H. Baik, S. Kang, S. W. Cho, J. Bae, M.-Y. Cha, M. J. Sailor, I. Mook-Jung,* and K. H. Ahn*
ACS Cent. Sci. 2016, 2, 967–975.

Page Link

A Two-Photon Fluorescent Probe for Lysosomal Zinc Ions

H.-J. Lee, C.-W. Cho, H. Seo, S. Singha, Y. W. Jun, K.-H. Lee, Y. Jung, K.-T. Kim, S. Park, S. C. Bae,
and K. H. Ahn*
Chem. Commun. 2016, 52, 124–127.

Page Link

Shape-Selective, Stoichiometric Sensing of Fatty Acids with a Mixed Polydiacetylene Liposome

Y.-S. Cho, D. H. Ma, and K. H. Ahn*
J. Mater. Chem. C 2016, 4, 2871–2876. 

Page Link

Two-Photon Absorbing Dyes with Minimal Autofluorescence in Tissue Imaging: Application to in Vivo Imaging of Amyloid‑β Plaques with a Negligible Background Signal

D. Kim, H. Moon, S. H. Baik, S. Singha, Y. W. Jun, T. Wang, K. H. Kim,* B. S. Park, J. Jung, I. Mook-Jung, and K. H. Ahn*
J. Am. Chem. Soc. 2015, 137, 6781−6789.

Page Link

Preparation of Luminescent Lanthanide Polymers by Ring-Opening Metathesis Polymerization

M. S. Yoon, M. Santra, and K. H. Ahn*
Tetrahedron Lett. 2015, 56, 5573–5577.

Page Link

A structural remedy toward bright dipolar fluorophores in aqueous media

S. Singha, D.  Kim, B. Roy, S. Sambasivan, H. Moon, A. S. Rao, J. Y. Kim, T. Joo,* J. W. Park, Y. M. Rhee,* T. Wang, K. H. Kim,* Y. H. Shin, J. Jung,* and K. H. Ahn*
Chem. Sci. 20156, 4335–4342.

Page Link

Fluorescence Sensing Systems for Gold and Silver Species

S. Singha, D. Kim, H. Seo, S. W. Cho, and K. H. Ahn*
Chem. Soc. Rev. 2015, 44, 4367–4399.

Page Link

π-Expanded Coumarins: Synthesis, Optical Properties and Applications

M. Tasior, D. Kim, S. Singha, M. Krzeszewski, K. H. Ahn,* and D. T. Gryko*
J. Mater. Chem. C 2015, 3, 1421–1446.

Page Link

Ratiometric Fluorescence Detection of Cysteine and Homocysteine with a BODIPY Dye by Mimicking the Native Chemical Ligation

D. H. Ma, D. Kim, E. Seo, S.-J. Lee,* and K. H. Ahn*
Analyst 2015, 140, 422–427.

Page Link

An FITC-BODIPY FRET Couple: Application to Selective, Ratiometric Detection and Bioimaging of Cysteine

Ma, D. H.; Kim, D.; Akisawa, T.; Lee, K.-H.; Kim, K.-T.; Ahn, K. H. 
Chem. Asian J. 2015, 10, 894–902.

Page Link

Toward a Selective, Sensitive, Fast-Responsive, and Biocompatible Two-Photon Probe for Hydrogen Sulfide in Live Cells

S. Singha, D. Kim, H. Moon, T. Wang, K. H. Kim, Y. H. Shin, J. Jung, E. Seo, S.-J. Lee, and K. H. Ahn*
Anal. Chem. 2015, 87, 1188–1195.

Page Link

Synthesis of Benzocoumarins and Characterization of Their Photophysical Properties

D. Kim, Q. P. Xuan, H. Moon, Y. W. Jun, and K. H. Ahn*
Asian J. Org. Chem. 2014, 3 , 1089–1096.

Page Link

Molecular-Shape-Dependent Luminescent Behavior of Dye Aggregates: Bent versus Linear Benzocoumarins

H. Moon, Q. P. Xuan, D. Kim, Y. Kim, J. W. Park, C. H. Lee, H.-J. Kim, A. Kawamata, S. Y. Park,
and K. H. Ahn*
Cryst. Growth Des. 2014, 14, 6613–6619.

Page Link

Fluorescent Probes for Analysis and Imaging of Monoamine Oxidase Activity

D. Kim, Y. W. Jun, and K. H. Ahn*
B. Korean Chem. Soc. 2014, 35, 1269–1274. 

Page Link

Recent Development of Two-Photon Fluorescent Probes for Bioimaging

D. Kim, H. G. Ryu, and K. H. Ahn*
Org. Biomol. Chem. 2014, 12, 4550–4566.

Page Link

Ground-State Elevation Approach To Suppress Side Reactions in Gold-Sensing Systems Based on Alkyne Activation

H. Seo, M. E. Jun, K. Ranganathan, K.-H. Lee, K.-T. Kim, W. Lim, Y. M. Rhee, and K. H. Ahn*
Org. Lett. 2014, 16, 1374–1377. 

Page Link

Turn-On Fluorescence Detection of Apoptotic Cells Using a Zinc(II)-Dipicolylamine-Functionalized Poly(Diacetylene) Liposome

Y.-S. Cho, K. M. Kim, D. Lee, W. J. Kim,* and K. H. Ahn*
Chem. Asian J. 2013, 8, 755–759.

Page Link

A Novel Method Using an Acedan-Based Zn(DPA) Probe to Monitor ATP Localization in an in Vivo System

S. J. Lee, A. S. Rao, Y. H. Shin, H.-J. Chung, Y. Huh, K. H. Ahn, and J. Jung*
J Mol. Hist. 2012, 44, 241–247.

Page Link

Molecular Interactions between Charged Macromolecules: Colorimetric Detection and Quantification of Heparin with a Polydiacetylene Liposome

Y.-S. Cho, and K. H. Ahn*
J. Mater. Chem. B 2013, 1, 1182–1189.

Page Link

Two-Photon Probes Based on Arylsulfonyl Azides: Fluorescence Detection and Imaging of Biothiols

S. Singha, D. Kim, A. S. Rao, T. Wang, K. H. Kim, K.-H. Lee, K.-T. Kim, and K. H. Ahn*
Dyes Pigm. 2013, 99, 308–315.

Page Link

Studies on Acedan-Based Mononuclear Zinc Complexes toward Selective Fluorescent Probes for Pyrophosphate

A. S. Rao, S. Singha, W. Choi, and K. H. Ahn*
Org. Biomol. Chem. 2012, 10, 8410–8417.

Page Link

In Vivo Two-Photon Fluorescent Imaging of Fluoride with a Desilylation-Based Reactive Probe

D. Kim, S. Singha, T. Wang, E. Seo, J. H. Lee, S.-J. Lee,* K. H. Kim,* and K. H. Ahn* 
Chem. Commun. 2012, 48, 10243–10245.

Page Link

A Reaction-Based Sensing Scheme for Gold Species: Introduction of a (2-Ethynyl)Benzoate Reactive Moiety

H. Seo, M. E. Jun, O. A. Egorova, K.-H. Lee, K.-T. Kim, and K. H. Ahn*
Org. Lett. 2012, 14, 5062–5065.

Page Link

Synthesis of π-Extended Coumarins and Evaluation of Their Precursors as Reactive Fluorescent Probes for Mercury Ions

I. Kim, D. Kim, S. Sambasivan, and K. H. Ahn*
Asian J. Org. Chem. 2012, 1, 60–64.

Page Link

Reaction-Based Two-Photon Probes for in Vitro Analysis and Cellular Imaging of Monoamine Oxidase Activity

D. Kim, S. Sambasivan, H. Nam, K. H. Kim,*  J. Y. Kim, T. Joo,* K.-H. Lee, K.-T. Kim* and K. H. Ahn*
Chem. Commun. 2012, 48, 6833–6835.

Page Link

Dramatic Substituent Effects on the Photoluminescence of Boron Complexes of 2-(Benzothiazol-2-Yl)Phenols

M. Santra, H. Moon, M.-H. Park, T.-W. Lee,* Y. K. Kim, and K. H. Ahn*
Chem. Eur. J. 2012, 18, 9886–9893.

Page Link

A BODIPY-Based Reactive Probe for Ratiometric Fluorescence Sensing of Mercury Ions

D. Kim, K. Yamamoto, and K. H. Ahn*
Tetrahedron, 2012, 68, 5279–5282.

Page Link

A Turn-on Two-Photon Fluorescent Probe for ATP and ADP

A. S. Rao, D. Kim, H. Nam, H. Jo, K. H. Kim,* C. Ban,* and K. H. Ahn*
Chem. Commun. 2012, 48, 3206–3208.

Page Link

Reaction-Based Two-Photon Probes for Mercury Ions: Fluorescence Imaging with Dual Optical Windows

A. S. Rao, D. Kim, T. Wang, K. H. Kim,* S. Hwang, and K. H. Ahn*
Org. Lett. 2012, 14, 2598–2601.

Page Link

Stromal Cell Derived Factor-1 (SDF-1) Targeting Reperfusion Reduces Myocardial Infarction in Isolated Rat Hearts

Y.-H. Jang, J.-H. Kim,* C. Ban, K. H. Ahn, J.-H. Cheong, H.-H. Kim, J.-S. Kim, Y.-H. Park, J. Kim, K.-J. Chun, G.-H. Lee, M. Kim, C. Kim, and Z. Xu
Cardiovasc. Ther. 2011, 30, 264–272.

Page Link

Free Radical Polymerization Initiated and Controlled by Visible Light Photocatalysis at Ambient Temperature

G. Zhang, I. Y. Song, K. H. Ahn, T. Park,* and W. Choi*
Macromolecules 2011, 44, 7594–7599.

Page Link

Nanoparticle-Based Indicator-Displacement Assay for Pyrophosphate

D. J. Oh, K. M. Kim, and K. H. Ahn* 
Chem. Asian J. 2011, 6, 2034–2039.

Page Link

Competition Assay of Thymidine Phosphates with a (Zn2+-Cyclen)-Lumazine Ensemble

K.-M. Kim, D.-J. Oh, and K. H. Ahn*
B Korean Chem. Soc. 2011, 32, 3133–3136.

Page Link

A “Reactive” Ratiometric Fluorescent Probe for Mercury Species

M. Santra, B. Roy, and K. H. Ahn*
Org. Lett. 2011, 13, 3422–3425.

Page Link

Characterization of Vinylgold Intermediates: Gold-Mediated Cyclization of Acetylenic Amides

O. A. Egorova, H. Seo, Y. Kim, D. Moon, Y. M. Rhee, and K. H. Ahn*
Angew. Chem. Int. Ed. 2011, 50, 11446–11450.

Page Link

Zinc(II)-Dipicolylamine-Functionalized Polydiacetylene-Liposome Microarray: A Selective and Sensitive Sensing Platform for Pyrophosphate Ions

K. M. Kim, D. J. Oh, and K. H. Ahn*
Chem. Asian J. 2010, 6, 122–127.

Page Link

“Turn-on” Fluorescent Sensing with “Reactive” Probes

M. E. Jun, B. Roy, and K. H. Ahn*
Chem. Commun. 2011, 47, 7583–7601.

Page Link

Mononuclear Zn(Ii)- and Cu(Ii)-Complexes of a Hydroxynaphthalene-Derived Dipicolylamine: Fluorescent Sensing Behaviours toward Pyrophosphate Ions

B. Roy, A. S. Rao, and K. H. Ahn*
Org. Biomol. Chem. 2011, 9, 7774–7779.

Page Link

—————-