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Kusum Vats, Ashis Kumar Satpati, Rohit Sharma, Haladhar Dev Sarma, Drishty Satpati, Ashutosh Dash
This study explores the potential of 177Lu-labeled carbon nanospheres as radio-nanoprobes for molecular imaging and therapy. The carboxyl functionalized surface of carbon nanospheres (CNS) was conjugated with [Gly-Gly-Gly-c(Asn-Gly-Arg)], G3-cNGR peptide through amide bond for targeting tumor vasculature and with [2-(4-Aminobenzyl)-1,4,7,10-tetraazacyclododecane tetraacetic acid], p-NH2-Bz-DOTA for chelation with 177Lu. The nanosphere-peptide conjugate, DOTA-CNS-cNGR, was characterized by dynamic light scattering and zeta potential measurements, IR and UV experiments and did not show any in vitro cytotoxicity...
February 1, 2018: Journal of Pharmaceutical and Biomedical Analysis
Natascha Drude, Lena Tienken, Felix M Mottaghy
In nuclear medicine, a theranostic probe describes a substance that combines diagnostic and therapeutic capabilities by radiolabeling it with different radionuclides. Next to a brief description of the different emitters (α, β(+), β(-), γ) used for imaging and/or therapy, the aim of this review is to summarize the most commonly used theranostic probes in nuclear medicine. Another goal is to give an idea which chemical requirements need to be fulfilled for radiolabeling with either therapeutic and/or diagnostic relevant nuclides...
November 1, 2017: Methods: a Companion to Methods in Enzymology
Martin K Bakht, So Won Oh, Do Won Hwang, Yun-Sang Lee, Hyewon Youn, Lisa A Porter, Gi Jeong Cheon, Cheol Kwak, Dong Soo Lee, Keon Wook Kang
The artificial nanostructures such as nanoparticles and natural nanostructures such as secreted nano-sized extracellular vesicles known as exosomes are promising tools for the realization of personalized medicine. Radionanomedicine is a recently coined term for the simultaneous application of either radiation technology or nuclear medicine with nanomedicine. In addition, radioexosomics is our suggested term for the study of exosomes functions, cytotoxicity, cancerogenicity, and biodistribution using radiation technology and nuclear medicine tracing technology...
February 16, 2017: Current Pharmaceutical Design
Shreya Goel, Christopher G England, Feng Chen, Weibo Cai
Development of novel imaging probes for cancer diagnosis is critical for early disease detection and management. The past two decades have witnessed a surge in the development and evolution of radiolabeled nanoparticles as a new frontier in personalized cancer nanomedicine. The dynamic synergism of positron emission tomography (PET) and nanotechnology combines the sensitivity and quantitative nature of PET with the multifunctionality and tunability of nanomaterials, which can help overcome certain key challenges in the field...
April 2017: Advanced Drug Delivery Reviews
Edwin C Pratt, Travis M Shaffer, Jan Grimm
In this study, we cover the convergence of radiochemistry for imaging and therapy with advances in nanoparticle (NP) design for biomedical applications. We first explore NP properties relevant for therapy and theranostics and emphasize the need for biocompatibility. We then explore radionuclide-imaging modalities such as positron emission tomography (PET), single-photon emission computed tomography (SPECT), and Cerenkov luminescence (CL) with examples utilizing radiolabeled NP for imaging. PET and SPECT have served as diagnostic workhorses in the clinic, while preclinical NP design examples of multimodal imaging with radiotracers show promise in imaging and therapy...
November 2016: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
Yun-Sang Lee, Yong-Il Kim, Dong Soo Lee
The emerging radionanomedicine has multifunctional and theranostic purposes. For these purposes, radionanomedicine should achieve the efficient and specific delivery of therapeutic agents by multifunctional characteristics, using low amounts of nanomaterials in vivo. Recent research on radiolabeled micelle-encapsulated nanomaterials has been made on the their efficacy and safety using a one-step surface modification method (Jeong's method). This one-step multifunctional approach to the nanoparticle can be the important challenge in producing effective nanoplatforms for cancer imaging and therapy...
September 2015: Nuclear Medicine and Molecular Imaging
Dong Soo Lee, Hyung-Jun Im, Yun-Sang Lee
UNLABELLED: Despite of promising preclinical results in the fields of in vivo theragnostics of nanomedicine, a majority of attempt for clinical translation has been blocked by unsolved concerns about possible hazards to human body. Theragnosis of nanomedicine relies on the property of huge surface area to volume ratio of nanomaterials, which can offer potential for multi-functionality. Radionanomedicine has a hybrid characteristic of tracer technology and multi-functionality. Thus, key advantage of radionanomedicine is a possibility of using low amount of nanomaterials for theragnosis...
May 2015: Nanomedicine: Nanotechnology, Biology, and Medicine
Madaswamy S Muthu, Barnabas Wilson
No abstract text is available yet for this article.
February 2010: Nanomedicine
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