Abstract
Compound semiconductor nanomaterials, such as telluride nanowires, nanorods, and nanoparticles, have many unique properties for wide range of potential applications. The interaction between organoids (a biological system) and telluride nanowires is a crucial research area for human health in terms of its safety concerns. In this study, we demonstrated a case study on Bi 2 Te 3 nanowires. Through live/dead cell viability testing, bright-light image analysis, and surface area calculations, we showed that 50μg/mL Bi 2 Te 3 exerts minimum influence on shrinking crypts and disrupting lumen structure, which causes unhealthy growth. Within this optimal concentration, Bi 2 Te 3 nanowires can stay as a stable and non-toxic material inside the intestine. Unlike the previous studies of the cytotoxicity of Telluride nanomaterials interacting with single type of cells, our research demonstrated the first study of the interactions of engineered Telluride nanomaterials with a real complex gastrointestinal tract system as our primary small intestinal crypts were directly isolated from mice and grew into a self-renewable system with various types of cells and different cell pathways, which has the capability to mimic a fully functional intestinal epithelium layer for a realistic study inside the gastrointestinal tract. Most importantly, we showed that Bi 2 Te 3 nanowires, under infrared exposure, can act as a potential shield to stimulate cell viability and improve cell survivability.
| Original language | English |
|---|---|
| Pages (from-to) | 978-986 |
| Number of pages | 9 |
| Journal | Journal of Biomedical Nanotechnology |
| Volume | 14 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2018 |
Bibliographical note
Publisher Copyright:Copyright © 2018 American Scientific Publishers All rights reserved.
Funding
vation and further impact on the cells at molecular level are still under investigation, which could be related with Acknowledgments: We thank Tracey Pepper Stewart at the electrical, optical, and therImPa: l20p3ro.5p6er.t2ie4s1.o1f28t hOesne: ThuI,o w24a SMtaatye 2U0n1iv8e 1rs1it:y15B:e2s4sey Microscopy Facility for pro-nanowires. Although the mechanism hCopyright: American Scientific Publishersas not been studied viding equipmentand technologiesfor cell histology imag- yet, sev31eral4243assumptions can be made based oDelivered by Ingentan other ing.WethankCrohn’sandColitisFoundationofAmerica studies. Itissuggestedthatthemechanismofnan- (CCFA) Career Award (No. 348137), PhRMA Foundation otoxicity is related with the generation of reactive oxygen Research Starter Award (No. RSGTMT17), and McGee- species (ROS).42 IR exposure first caused cell inflamma-Wagner Interdisciplinary Research Foundation supported tion, which leads to ROS formations, further caused cell this research. The research was also supported (TAB) by death through free-radical mechanisms. However, telluride NIH (2RO1 DK095662) and VA Merit (1I01CX001353) nanowires are different compared with silicon nanowires. grants. They are thinner, smaller, and have well thermoelectrical and photothermal properties.43 With its thermoelectrical properties, a proper concentration is able to protect our biological system away from IR exposure. The unique shielding effect of nanowires could provide a potential solution for protecting stem cells under radiation or other medical treatment. We thank Tracey Pepper Stewart at Iowa State University Bessey Microscopy Facility for providing equipment and technologies for cell histology imaging. We thank Crohn's and Colitis Foundation of America (CCFA) Career Award (No. 348137), PhRMA Foundation Research Starter Award (No. RSGTMT17), and McGee- Wagner Interdisciplinary Research Foundation supported this research. The research was also supported (TAB) by NIH (2RO1 DK095662) and VA Merit (1I01CX001353) grants.
| Funders | Funder number |
|---|---|
| Interdisciplinary Research Foundation | |
| PhRMA Foundation Research Starter | |
| Tracey Pepper Stewart at Iowa State University Bessey Microscopy Facility | |
| VA Merit Award | 1I01CX001353 |
| National Institutes of Health (NIH) | 2RO1 DK095662 |
| National Institutes of Health (NIH) | |
| Crohn's and Colitis Foundation of America | 348137 |
| Crohn's and Colitis Foundation of America | |
| Pharmaceutical Research and Manufacturers of America Foundation | RSGTMT17 |
| Pharmaceutical Research and Manufacturers of America Foundation |
Keywords
- Bismuth telluride
- Minigut
- Nanowires
- Organoids
- Toxicity
ASJC Scopus subject areas
- General Medicine