Abstract:
:Multifunctional nanoparticles integrated with imaging modalities (such as magnetic resonance and optical) and therapeutic drugs are promising candidates for future cancer diagnostics and therapy. While targeted drug delivery and imaging of tumor cells have been the major focus in engineering nanoparticle probes, no extensive efforts have been made towards developing sensing probes that can confirm and monitor intracellular drug release events. Here, we present quantum dot (Qdot)-iron oxide (IO) based multimodal/multifunctional nanocomposite probe that is optically and magnetically imageable, targetable and capable of reporting on intracellular drug release events. Specifically, the probe consists of a superparamagnetic iron oxide nanoparticle core (IONP) decorated with satellite CdS:Mn/ZnS Qdots where the Qdots themselves are further functionalized with STAT3 inhibitor (an anti-cancer agent), vitamin folate (as targeting motif) and m-polyethylene glycol (mPEG, a hydrophilic dispersing agent). The Qdot luminescence is quenched in this nanocomposite probe ("OFF" state) due to combined electron/energy transfer mediated quenching processes involving IONP, folate and STAT3 agents. Upon intracellular uptake, the probe is exposed to the cytosolic glutathione (GSH) containing environment resulting in restoration of the Qdot luminescence ("ON" state), which reports on uptake and drug release. Probe functionality was validated using fluorescence and MR measurements as well as in vitro studies using cancer cells that overexpress folate receptors.
journal_name
Biomaterialsjournal_title
Biomaterialsauthors
Mitra RN,Doshi M,Zhang X,Tyus JC,Bengtsson N,Fletcher S,Page BD,Turkson J,Gesquiere AJ,Gunning PT,Walter GA,Santra Sdoi
10.1016/j.biomaterials.2011.10.068subject
Has Abstractpub_date
2012-02-01 00:00:00pages
1500-8issue
5eissn
0142-9612issn
1878-5905pii
S0142-9612(11)01284-1journal_volume
33pub_type
杂志文章相关文献
BIOMATERIALS文献大全abstract::Podophyllotoxin (PPT) exhibited significant activity against P-glycoprotein mediated multidrug resistant (MDR) tumor cell lines; however, due to its poor solubility and high toxicity, PPT cannot be dosed systemically, preventing its clinical use for MDR cancer. We developed a nanoparticle dosage form of PPT by covalen...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2015.02.041
更新日期:2015-06-01 00:00:00
abstract::Structural properties of several cross-linked hyaluronan derivatives, obtained by scanning electron microscopy, monodimensional NMR microscopy and small angle X-ray scattering of synchrotron radiation, are presented and compared with those observed for non-modified hyaluronic acid, used as a reference material. The ex...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/s0142-9612(01)00231-9
更新日期:2002-02-01 00:00:00
abstract::Local tumor therapy through injectable biodegradable hydrogels with controlled drug release has attracted much attention recently, due to their easy operation, low side effect and efficiency. However, most of the reported therapeutic hydrogel system showed a lack of biodegradation tracking and tumor environment-respon...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2020.120301
更新日期:2020-12-01 00:00:00
abstract::Tissue engineering in vitro and in vivo involves the interaction of cells with a material surface. The nature of the surface can directly influence cellular response, ultimately affecting the rate and quality of new tissue formation. Initial events at the surface include the orientated adsorption of molecules from the...
journal_title:Biomaterials
pub_type: 杂志文章,评审
doi:10.1016/0142-9612(96)85758-9
更新日期:1996-01-01 00:00:00
abstract::Although dendritic nanoparticles have been prepared by many different methods, control over their degree of branching (DB) is still impossible, preventing us from understanding the effect of the DB on the properties of the nanodendrites as cancer therapeutics. Herein, we developed a novel seed-mediated method to prepa...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2016.06.033
更新日期:2016-10-01 00:00:00
abstract::Arterial smooth muscle cell (SMC) phenotype and proliferation is regulated by their surrounding collagens, which transform from fibrillar to monomeric type in atherogenesis, and platelet-derived growth factor (PDGF)-BB/interleukin (IL)-1β. This study aims at elucidating the mechanisms by which physical (monomeric vs. ...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2012.06.030
更新日期:2012-10-01 00:00:00
abstract::The Debye Function Analysis of diffraction patterns from nanosized mineral crystals showing different average degrees of maturity was carried out on engineered bone samples. The analysis relied on a bivariate family of atomistic hydroxyapatite nanocrystal models and provided information about crystal structure, size a...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2010.07.051
更新日期:2010-11-01 00:00:00
abstract::Vaccination is an effective medical intervention for preventing disease. However, without an adjuvant, most subunit vaccines are poorly immunogenic. This work develops a bioinspired nanocomposite hyaluronic acid hydrogel system that incorporates N-trimethyl chitosan nanoparticles (TMC/NPs) that carry a model subunit v...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2019.119268
更新日期:2019-09-01 00:00:00
abstract::Hydrogels of crosslinked poly(2-vinylpyridine-1-oxide), PVNO, and poly(2-vinylpyridine-1-oxide)-poly(N-vinyl-pyrrolidone), PNVO-PVP, were synthesized. PVNO hydrogels were found to be degradable in a pseudo-biological medium and their stability could be increased by increasing the relative concentration of the crosslin...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/0142-9612(81)90079-x
更新日期:1981-01-01 00:00:00
abstract::Subtle changes on the surface of polymeric materials on autoclaving have been ignored so far. An increase in cyclic trimer content on the surface of polyethylene terephthalate on autoclaving is reported. This increase may affect the biocompatibility of polyethylene terephthalate. Quantification of the cyclic trimer wa...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/0142-9612(84)90079-6
更新日期:1984-09-01 00:00:00
abstract::To prevent bone metastasis, we developed polyethylene glycol (PEG)-conjugated aspartic acid (Asp)-modified liposomes (PEG-Asp-Lipo) as a bone-targeting carrier of paclitaxel (PTX) by using Asp-modified 1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine (DPPE-Asp). The affinity of Asp-modified liposomes to hydroxyapatite...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2017.10.053
更新日期:2018-02-01 00:00:00
abstract::Biodegradable tissue engineering scaffolds are commonly fabricated from poly(lactide-co-glycolide) (PLGA) or similar polyesters that degrade by hydrolysis. PLGA hydrolysis generates acidic breakdown products that trigger an accelerated, autocatalytic degradation mechanism that can create mismatched rates of biomateria...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2014.01.026
更新日期:2014-04-01 00:00:00
abstract::Random copolymers of trimethylene carbonate and epsilon-caprolactone have been synthesized through ring-opening polymerization using rare earth alkoxides as initiator. The structure of the copolymers has been characterized by 1H and 13C NMR. Their thermal behaviour, their permeability to liquid and their mechanical pr...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/s0142-9612(01)00029-1
更新日期:2001-11-01 00:00:00
abstract::The stabilities of two types of polymerically stabilized liposomes consisting of PEG-grafted (DSPC:CHOL:DSPE-PEG1900, 5:4:1) and physically adsorbed carboxymethylchitin (CMC) and carboxymethyl/glycolchitin (CO) are compared. The polyelectrolyte is adsorbed on positive (DSPC:CHOL:DMTAP, 5:4:1) and neutral (DSPC:CHOL, 1...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/s0142-9612(98)00004-0
更新日期:1998-07-01 00:00:00
abstract::Porous silica gels with high surface areas were prepared from tetraethylothosilicate and polyacrylic acid (PAA) of high molecular weight in acidic media by a sol-gel method. PAA content and ageing temperatures were varied in order to obtain different microstructures. Samples were sintered at temperatures up to 400 deg...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/s0142-9612(02)00190-4
更新日期:2002-11-01 00:00:00
abstract::A biodegradable microvessel scaffold comprised of distinct parenchymal and vascular compartments separated by a permeable membrane interface was conceptualized, fabricated, cellularized, and implanted. The device was designed with perfusable microfluidic channels on the order of 100 μm to mimic small blood vessels, an...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2013.09.039
更新日期:2013-12-01 00:00:00
abstract::We demonstrate the ability of immobilized vascular endothelial growth factor (VEGF) to capture endothelial cells (EC) with high specificity under fluid flow. To this end, we engineered a surface consisting of heparin bound to poly-l-lysine to permit immobilization of VEGF through the C-terminal heparin-binding domain....
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2015.02.025
更新日期:2015-05-01 00:00:00
abstract::Biodegradable polylactide implants allow secure fixation of osteochondral fractures with minimal adverse effects. The goal of this prospective, randomized animal study was to show whether osteoconductive effects can be achieved through the development of poly-L/DL(70/30)lactide composite implants with 10% beta-tricalc...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2004.10.031
更新日期:2005-07-01 00:00:00
abstract::Bone tissue is an anisotropic non-homogeneous composite material composed of inorganic, bone mineral fibres (hydroxyapatite) embedded in an organic matrix (type I collagen and non-collagenous proteins). Factors contributing to the overall mechanical behaviour include constituent volume fraction, mechanical properties,...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/0142-9612(94)90263-1
更新日期:1994-01-01 00:00:00
abstract::The design of new bioactive scaffolds mimicking the physiologic environment present during tissue formation is an important frontier in biomaterials research. Herein, we evaluated scaffolds prepared from blends of two biopolymers: silk fibroin and hyaluronan. Our rationale was that such blends would allow the combinat...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2009.06.008
更新日期:2009-10-01 00:00:00
abstract::Meniscus injuries are prevalent in orthopedic diagnosis. The reconstruction of the structural inhomogeneity and anisotropy of the meniscus is a major challenge in clinical practice. Meniscal tissue engineering has emerged as a potential alternative for the treatment of various meniscal diseases and injuries. In this s...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2020.120466
更新日期:2021-01-01 00:00:00
abstract::Rare-earth upconversion nanoparticles (UCNP) which can absorb low-energy photons and emit high energy photons have attracted great interest not only because of their unique application in upconversion luminescence imaging, but also because they can be used as ideal building blocks for multimodal bioimaging probes. Imp...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2011.07.053
更新日期:2011-11-01 00:00:00
abstract::Poly-γ-glutamic acid (γ-PGA) is an anionic polypeptide secreted by Bacillus sp. that has been shown to activate immune cells through interactions with toll-like receptor 4 (TLR4). However, its ability to induce the type I interferon (IFN) response has not yet been characterized. Here, we demonstrate that γ-PGA induces...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2013.08.067
更新日期:2013-12-01 00:00:00
abstract::Recent advances in stem cell research and nanotechnology have significantly influenced the landscape of tissue engineering and regenerative medicine. Precise and reproducible control of the fate of stem cells and their lineage specification have, therefore, become more crucial than ever for the success of stem cell-ba...
journal_title:Biomaterials
pub_type: 杂志文章,评审
doi:10.1016/j.biomaterials.2017.10.004
更新日期:2018-02-01 00:00:00
abstract::The blood-brain barrier (BBB) prevents entry of neurotoxic substances but also that of drugs into the brain. Here, the paracellular barrier is formed by tight junctions (TJs) with claudin-5 (Cldn5) being the main sealing constituent. Transient BBB opening by targeting Cldn5 could improve paracellular drug delivery. Th...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2018.01.028
更新日期:2018-04-01 00:00:00
abstract::Liver fibrosis is a major characteristic of liver disease. When the liver is damaged, quiescent hepatic stellate cells (HSCs) transdifferentiate into proliferative myofibroblastic/activated HSCs, which are the main contributors to liver fibrosis. Hence, a strategy for regulating HSC activation is important in the trea...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2019.119375
更新日期:2019-10-01 00:00:00
abstract::Besides toxicity tests, biokinetic studies are a fundamental part of investigations to evaluate a safe and sustainable use of nanoparticles. Today, gold nanoparticles (Au NPs) are known to be a versatile tool in different areas such as science, engineering or medicine. In this study, we investigated the biokinetics af...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2010.05.009
更新日期:2010-09-01 00:00:00
abstract::Irradiated, thermally stabilized, highly cross-linked UHMWPE bearings have demonstrated superior wear performance and improved in vitro oxidation resistance compared with terminally gamma-sterilized bearings, yet retrieval analysis reveals unanticipated in vivo oxidation in these materials despite fewer or no measurab...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2014.02.019
更新日期:2014-05-01 00:00:00
abstract::Rapid prototyping is a novel process for the production of scaffolds of predetermined size and three-dimensional shape. The aim of the study was to determine the feasibility of this technology for producing scaffolds for tissue engineering an aortic valve and the optimal concentration of collagen processed in this man...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2005.12.003
更新日期:2006-05-01 00:00:00
abstract::Graphene oxide (GO) immunotoxicity is not clarified well up to date. Herein we reported the effects of GOs with and without polyvinylpyrrolidone (PVP) coating on human immune cells such as dendritic cells (DCs), T lymphocytes and macrophages. Human immune cells such as dendritic cells (DCs), T lymphocytes and macropha...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2013.03.024
更新日期:2013-07-01 00:00:00