50. Mesoscopic fluorescence optical tomography of thick tissue constructs: Simulation and phantom results (In prep). (2022)



49. Chemophototherapeutic Ablation of Doxorubicin-Resistant Human Ovarian Tumor Cells. S Ghosh, U Chitgupi, Sunar U, Lovell JF. Photochem Photobiol (2022)

48. CS Poon**, DS Langri**, B Rinehart**, TM Rambo, AJ Miller, B Foreman, Sunar U*. First-in-clinical application of a time-gated diffuse correlation spectroscopy system at 1064nm using superconducting nanowire single photon detectors for cerebral blood flow assessment. Biomed Opt. Express.;8(13)3:1344-1356 (2022)

Also published in MedRxiv:


47. CS Poon**, B Rinehart**, DS Langri**, TM Rambo, AJ Miller, B Foreman, Sunar U*. Noninvasive optical monitoring of cerebral blood flow and EEG Spectral responses after Severe Traumatic Brain Injury: A Case Report. Brain Sciences 11 (8), 1093 (2021)

Also published in MedRxiv:

46. Rinehart B**, Poon C**, and Sunar U*. Quantification of hypoperfusion in autism spectrum disorder assessed by diffuse correlation spectroscopy and frequency domain near infrared spectroscopy. J Biophotonics14(11):e202000454 (2021)  doi: jbio.e202000454 Epub 2021 


C.-S. Poon, F. Long, and U. Sunar, "Deep learning model for ultrafast quantification of blood flow in diffuse correlation spectroscopy," bioRxiv 2020.06.24.167882 (2020).Rinehart B**, Poon C**, and Sunar U*. 

Quantification of hypoperfusion in autism spectrum disorder assessed by diffuse correlation spectroscopy and frequency domain near infrared spectroscopy. (Submitted to J Biophotonics)

Pre-print at bioRxiv doi: (2020)

Mo W**, Patel NJ, Chen Y, Pandey R, and Sunar U*. Mapping fluorescence resonance energy transfer parameters of bifunctional agent using time-domain fluorescence diffuse optical tomography. J Biophotonics Oct 6 (2020)doi: 10.1002/jbio.202000291 Online ahead of print

Schmeusser B, Borchers C, Travers JB, Borchers S, Trevino J, Rubin M, Donnelly H, Kellawan K, Carpenter L, Bahl S, Rohan C, Muennich E, Guenthner S, Hahn H, Rkein A, Darst M, Mousdicas N, Cates E, Sunar U, andBihl T.  Inter- and intra-physician variation in quantifying actinic keratosis skin photodamage. J Clin Investigat Dermatol 8(2):4 (2020) 

Poon C**, Long F, and Sunar U*. Deep learning model for ultrafast quantification of blood flow in diffuse correlation spectroscopy. Biomed Opt Express  11(10): 5557-5564 (2020) 

Pre-print at bioRxiv 2020.06.24.167882 (2020)

Poon C**, Rinehart B**, Li J**, and Sunar U*. Cerebral blood flow-based resting-state functional connectivity of the human brain measured by optical diffuse correlation spectroscopy. J Vis Exp (159) (2020) doi: 10.3791/60765 


Poon C**, Rinehart B**, Li J**, and Sunar U*. Cerebral Blood Flow-Based Resting-State Functional Connectivity of the Human Brain Measured by Optical Diffuse Correlation Spectroscopy. Journal of Vis. Experiments. (Accepted on Dec 16, 2019).

Travers JB, Poon C**, Bihl T, Rinehart B**, Borchers C, Rohrbach DJ**, Borchers S, Trevino J, Rubin M, Donnelly H, Kellawan K, Carpenter L, Bahl S, Rohan C, Muennich E, Guenthner S, Hahn H, Rkein A, Darst M, Mousdicas N, Cates E, Sunar U*. Quantifying skin photodamage with spatial frequency domain imaging: statistical results. Biomed Opt Express. 10(9):4676-4683 (2019).


Angelo JP, Chen S, Ochoa M, Sunar U, Gioux S, and Intes X. Review of structured light in diffuse optical imaging. J. Biomed. Opt. 24(7), 071602 (2018).

James NS, Cheruku RR, Missert JR, Sunar U, Pandey RK. Measurement of Cyanine Dye Photobleaching in Photosensitizer Cyanine Dye Conjugates Could Help in Optimizing Light Dosimetry for Improved Photodynamic Therapy of Cancer. Molecules. 2018 Jul 24;23(8).

Poon C**, Sunar U, Rohrbach DJ**, Krishnamurthy S, Olsen T, Kent M, Weir NM, Simman R, Travers JB. Early assessment of burn severity in human tissue ex vivo with multi-wavelength spatial frequency domain imaging. Toxicol In Vitro. 2018 52:251-254.


Kress J, Rohrbach DJ, Carter KA, Luo D, Poon C, Aygun-Sunar S, Shao S, Lele S, Lovell JF, Sunar U*. A dual-channel endoscope for quantitative imaging, monitoring, and triggering of doxorubicin release from liposomes in living mice. Nature. Sci Rep. 2017 Nov 14;7(1):15578. PMID: 29138489. (PDF)

Harris K, Rohrbach DJ, Attwood K, Qiu J, Sunar U. Optical imaging of tissue obtained by transbronchial biopsies of peripheral lung lesions. J Thorac Dis 2017. doi: 10.21037/jtd.2017.03.113. (2017).

Li J, Qiu L, Poon, C, Sunar U*. Analytical models for time-domain diffuse correlation spectroscopy for multi-layer and heterogeneous turbid media. Biomed. Optics Express 2017 8(12) 5518-5532

Saoud M, Patil M, Singh Dhillon S, Alraiyes AH, Sunar U*, Harris K. “Image Characteristics of Lung Abscess by Convex-Probe Endobronchial Ultrasound.” J Bronchology Interv Pulmonol. 2017 Jul;24(3):34-35. doi: 10.1097/LBR.0000000000000377.

Structural and Epimeric Isomers of HPPH: Effects on Uptake and Photodynamic Therapy of Cancer. Saenz C, Cheruku RR, Ohulchanskyy TY, Joshi P, Tabaczynski WA, Missert JR, Chen Y, Pera P, Tracy E, Marko A, Rohrbach D, Sunar U, Baumann H, Pandey RK. ACS Chem Biol. 2017 Feb 15. doi: 10.1021/acschembio.7b00023. [Epub ahead of print] PMID: 28165706. (2017).

Li J, Poon C-S, Kress J, Rohrbach D, Sunar U. Resting-state functional connectivity measured by diffuse correlation spectroscopy. J. Biophotonics. 2017;e201700165. (PDF)

Travers JB, Poon C, Rohrbach DJ, Weir NM, Cates E, Hager F, Sunar U*. Noninvasive mesoscopic imaging of actinic skin damage using spatial frequency domain imaging. Biomed Opt Express. 8(6):3045-3052 (2017).


Jun Li**, Lina Qiu, Lingyu Xu, Ernest V. Pedapati, Craig A. Erickson and Ulas Sunar. Characterization of autism spectrum disorder with spontaneous hemodynamic activity. Biomed. Opt. Express 7, 3871-3881 (2016). (PDF)

D.J. Rohrbach**, H. Salem**, M. Aksahin**, U. Sunar*. Photodynamic Therapy-Induced Microvascular Changes in a Nonmelanoma Skin Cancer Model Assessed by Photoacoustic Microscopy and Diffuse Correlation Spectroscopy. Photonics 3, 48 (2016).

D. Luo, K. A. Carter, A. Razi, J. Geng, S. Shao, D. Giraldo, U. Sunar, J. Ortega, and J. F. Lovell. Doxorubicin encapsulated in stealth liposomes conferred with light-triggered drug release. Biomaterials 75, 193-202 (2016).

D. Rohrbach**, N. Rigual, H. Arshad, E. Tracy, M. T. Cooper, G. Shafirstein, G. Wilding, M. Merzianu, H. Baumann, B. H. Henderson, and U. Sunar*. Intraoperative optical assessment of photodynamic therapy response of superficial oral squamous cell carcinoma. J Biomed Opt. 21(1), 018002 (2016).


J. Kress**, D. J. Rohrbach**, K. A. Carter, D. Luo, S. Shao, S. Lele, J. F. Lovell, and U. Sunar*. Quantitative imaging of light-triggered doxorubicin release. Biomed Opt Express 6, 3546-3555 (2015).

D. Rohrbach**, N. Zeitouni, D. Muffoletto, R. Saager**, B.J. Tromberg and U. Sunar*. Characterization of nonmelanoma skin cancer using spatial frequency domain imaging. Biomed. Opt. Express 6, 1761-1766 (2015).

N. Zeitouni, D. Rohrbach**, M. Aksahin** and U. Sunar*. Preoperative ultrasound and photoacoustic imaging of nonmelanoma skin cancers. Dermatol. Surg. 41(4):525-8 (2015).

D. Rohrbach**, E. Tracy, J. Walker**, H. Baumann and U. Sunar*. Blood flow dynamics during local photoreaction in a head and neck tumor model. Front. Phys. 3:13. doi: 10.3389/fphy.2015.00013(2015).


N.C. Zeitouni, U. Sunar, D.J. Rohrbach**, A. Paquette, D. Bellnier, Y. Shi, G. Wilding, T.H. Foster and B.W. Henderson. A prospective study of pain control by a two-step irradiance schedule during topical MAL-photodynamic therapy of non-melanoma skin cancer. Dermatol. Surg. 12:1390-4 (2014).

E. Kurenova, D. Ucar, J. Liao, M. Yemma, P. Gogate, W. Bshara, U. Sunar, M. Seshadri, S. Hochwald and W.G. Cance. A FAK scaffold inhibitor disrupts FAK and VEGFR-3 signaling and blocks melanoma growth by targeting both tumor and endothelial cells. Cell Cycle 13(16):2542-53 (2014).

M. Ozturk, D. Rohrbach**, U. Sunar, X. Intes. Mesoscopic Fluorescence Tomography of a photosensitizer (HPPH) 3D Bio-Distribution in Skin Cancer. Acad. Radiology 21(2): 271-280 (2014). Featured on, Feb 2014.

D. Rohrbach**, D. Muffoletto, J. Huihui**, R. Saager**, K. Keymel, A. Paquette, J. Morgan, N. Zeitouni and U. Sunar*. Preoperative mapping of nonmelanoma skin cancer using spatial frequency domain and ultrasound imaging. Acad. Radiology 21(2): 263-270 (2014).


N. Rigual, G. Shafirstein, M. Cooper, H. Baumann, D. A. Bellnier, U. Sunar, E. C. Tracy, D. Rohrbach**, G. Wilding, W. Tan, M. Sullivan, M. Merzianu and B. W. Henderson. Photodynamic Therapy with HPPH for Cancer of the Oral Cavity. Clin. Cancer Research 19(23):6605-13 (2013). Highlights of this issue: PDT with HPPH for Oral Cancer (Dec 1, 2013 19:6333).

U. Sunar*, D. Rohrbach**, J. Morgan, N. Zeitouni, and B. Henderson. Quantification of PpIX concentration in basal cell carcinoma and squamous cell carcinoma models using spatial frequency domain imaging. Biomed. Opt. Express 4, 531-537 (2013). Editorially selected for Virtual Journal of Biomedical Optics. (PDF)

U. Sunar. Monitoring photodynamic therapy of head and neck malignancies with optical spectroscopies. World J. Clin. Cases 1(3), 96-105 (Invited review)(2013).


D. Rohrbach**, N. Rigual, E. Tracy, K. Keymel, M.T. Cooper, W. Mo**, H. Baumann, B. Henderson, and U. Sunar*. Inter-lesion differences in the local photodynamic therapy response of oral cavity lesions assessed by diffuse optical spectroscopies. Biomed Opt Express 3(9), 2142–2153 (2012).

W. Mo**, D. Rohrbach**, U. Sunar*. Imaging a PDT photosensitizer in vivo with a time-gated fluorescence tomography system. J. Biomed. Opt. 17: 7 071306 (2012).


R.C. Mesquita, T. Durduran, G. Yu, E.M. Buckley, M.N. Kim, C. Zhou, R. Choe, U. Sunar, and A.G. Yodh. Direct measurement of tissue blood flow and metabolism with diffuse optics. Phil. Trans. R. Soc. A.369: 4390-4406 (2011).

A. Marrero, T. Becker**, U. Sunar, J. Morgan, D. Bellnier. Aminolevulinic acid-photodynamic therapy combined with topically applied vascular disrupting agent vadimezan leads to enhanced antitumor responses. Photochem. Photobiol. 87(4):910-9 (2011).


T. L. Becker**, A.D. Paquette, K. Keymel, B.W. Henderson, and U. Sunar*. Monitoring blood flow responses during topical ALA-PDT. Biomed. Opt. Express 2:123-130 (2010).

U. Sunar*, D. Rohrbach**, N. Rigual, E. Tracy, K. Keymel, M. Cooper, H. Baumann, and B. Henderson. Monitoring photobleaching and hemodynamic responses to HPPH-mediated photodynamic therapy of head and neck cancer: a case report. Opt. Express 18, 14969-14978 (2010). Editorially selected for Virtual Journal of Biomedical Optics 5(11): 14969 (2010).


D.J. Hall, U. Sunar, S.F. Heydari and S.H. Han. In vivo simultaneous monitoring of two fluorophores with lifetime contrast using a full-field time domain system. Appl. Opt. 48:10, D74-D78 (2009). Editorially selected for Virtual Journal of Biomedical Optics 4(6):D74 (2009).

J. Lee, U. Sunar, S.W. Tuttle, K. Shogen, I. Lee. Differential effect of l-buthionine sulfoximide ± ranpirnase on human lung cancer and lung fibroblast cells. Cancer Therapy 7: 454-464 (2009).


D.J. Hall, U. Sunar and S.F. Heydari. Quadrature detection of ultrasound-modulated photons with a gain-modulated, image-intensified CCD camera. The Open Optics Journal 2:75-78 (2008)


U. Sunar, S. Makonnen, C. Zhou, T. Durduran, G. Yu, H.W. Wang, W. Lee and A.G. Yodh. Hemodynamic responses to antivascular therapy and ionizing radiation assessed by diffuse optical spectroscopies. Opt. Express 15:15507-15516 (2007). Editorially selected for Virtual Journal of Biomedical Optics 2(12):15507 (2007).

I Lee, D. Kim, U. Sunar, S. Magnitsky and K. Shogen. The therapeutic mechanisms of ranpirnase-induced enhancement of radiation response on A549 human NSCLC xenografts in nude mice. In Vivo 21:5-12 (2007)

L. Song, H. Li, U. Sunar, W. Cao, J. Chen, A.G. Yodh and G. Zheng. Naphthalocyanine Reconstituted LDL Nanoparticles for in vivo Cancer Imaging and Treatment. Int. J. of Nanomedicine, 2(4):1-8 (2007) (Invited).


U. Sunar, H. Quon, T. Durduran, J. Zhang, J. Du, C. Zhou, G. Yu, R. Choe, A. Kilger, R. Lustig, L. Loevner, S. Nioka, B. Chance and A.G. Yodh. Noninvasive diffuse optical measurement of blood flow and blood oxygenation for monitoring radiation therapy in patients with head and neck tumors: A pilot study. J. Biomed. Opt. 11(6): p.064021 (2006).

S. Nioka, R. Kime, U. Sunar, J. Im, M. Izzetoglu, J. Zhang, B. Alacam, B. Chance. A novel method to measure muscle blood flow continuously using NIRS kinetics information. Dynamic. Med. 5:5 (2006).