Walsh C, Rajora MA, Ding L, Nakamura S, Endisha H, Rockel J, Chen J, Kapoor M, Zheng G Chemical Biomedical Imaging DOI: 10.1021/cbmi.3c00005 Despite the substantial burden posed by osteoarthritis (OA) globally, difficult challenges remain in achieving early OA diagnosis and adopting effective disease-modifying treatments. In this study, we useContinue Reading
Yoo K, Dhaliwal A, Chen J, Sheeran PS, Zheng G JoVE (Journal of Visualized Experiments) DOI: 10.3791/62665 Phase-change droplets are a class of ultrasound contrast agents that can convert into echogenic microbubbles in situ with the application of sufficient acoustic energy. Droplets are smaller and more stable than their microbubble counterparts. However,Continue Reading
Overchuk M, Damen MPF, Harmatys KM, Pomper MG, Chen J & Zheng GPhotochemistry and Photobiology, 2019DOI:10.1111/php.13181 Targeted photodynamic therapy (PDT) combined with image‐guided surgical resection is a promising strategy for precision cancer treatment. Prostate‐specific membrane antigen (PSMA) is an attractive target due to its pronounced overexpression in a variety ofContinue Reading
Harmatys KM, Overchuk M, Chen J, Ding L, Chen Y, Pomper MG & Zheng G Bioconjugate Chemistry, 2018 DOI: 10.1021/acs.bioconjchem.8b00636 We describe a simple and effective bioconjugation strategy to extend the plasma circulation of a low molecular weight targeted phototheranostic agent, which achieves high tumor accumulation (9.74 ± 2.26 %ID/g)Continue Reading
Luby BM & Zheng G Angewandte Chemie, 2017 DOI: 10.1002/anie.201707366 MicroRNA detection is a valuable method for determining cell identity. Molecular beacons are elegant sensors that can transform intracellular microRNA concentration into a fluorescence intensity. While target binding enhances beacon fluorescence, the degree of enhancement is insufficient for demanding applications.Continue Reading
Burgess L, Chen J, Wolter NE, Wilson BC & Zheng G Biomedical Optics Express, 2016 Each year almost 300,000 individuals worldwide are diagnosed with oral cancer, more than 90% of these being oral carcinoma [N. Engl. J. Med. 328, 184 1993]. Surgical resection is the standard of care, but accurateContinue Reading
Liu TW, Akens MK, Chen J, Wilson BC & Zheng G Photochemical and Photobiological Sciences, 2016 The metastatic spread of cancer from the primary site or organ is one of its most devastating aspects, being responsible for up to 90% of cancer-associated mortality. Bone is one of the common sitesContinue Reading
Liu TW, Chen J, Burgess L, Wilson BC, Zheng G, Zhan L, Liu WK, & Ha BY Journal of Physical Chemistry B, 2015 Proteases play key roles in the regulation of normal cellular function, and thus, their deregulation leads to many disease states. Molecular beacons are promising protease-imaging probes forContinue Reading
Mawn TM, Popov AV, Beardsley NJ, Milkevitch M, Stefflova K, Zheng G & Delikatny EJ Bioconjugate Chemistry, 2011 In this article, the characterization of the first near-infrared (NIR) phospholipase-activated molecular beacon is reported, and its utility for in vivo cancer imaging is demonstrated. The probe consists of three elements: aContinue Reading
Lovell JF, Chan MW, Qi Q, Chen J & Zheng G Journal of the American Chemical Society, 2011 Photodynamic therapy (PDT) stands to benefit from improved approaches to real-time treatment monitoring. One method is to use activatable photosensitizers that can both induce cell death (via singlet oxygen) and monitor itContinue Reading
