scholarly journals Active Cocatalysts: Brownmillerite‐Type Crystalline Ca 2 FeCoO 5 Ultrasmall Particles with Single‐Nanometer Dimensions as an Active Cocatalyst for Oxygen Photoevolution Reaction (Part. Part. Syst. Charact. 5/2020)

2020 ◽  
Vol 37 (5) ◽  
pp. 2070012
Author(s):  
Etsushi Tsuji ◽  
Ryosuke Nanbu ◽  
Yoshiki Degami ◽  
Kei Hirao ◽  
Takeyuki Watanabe ◽  
...  
Keyword(s):  
Ultrasmall Particles

Optical transient induced absorption in ultrasmall particles of amorphous selenium

1996 ◽  
Vol 125 (1-3) ◽  
pp. 59-64 ◽  
Author(s):  
K.V Yumashev ◽  
V.P Mikhailov ◽  
P.V Prokoshin ◽  
M.V Artemyev ◽  
V.S Gurin
Keyword(s):  
Amorphous Selenium ◽  
Induced Absorption ◽  
Optical Transient ◽  
Ultrasmall Particles

Formation and Photoreaction of PbI2, HgI2, and BiI3Layered Ultrasmall Particles

1993 ◽  
Vol 33 (1) ◽  
pp. 71-75 ◽  
Author(s):  
Yoshio Nosaka ◽  
Toshiaki Fukuyama ◽  
Masato Horiuchi ◽  
Nobuyuki Fujii
Keyword(s):  
Ultrasmall Particles

Ultrasmall particles and nanocomposites: state of the art

RSC Advances ◽  
2013 ◽  
Vol 3 (45) ◽  
pp. 22648 ◽  
Author(s):  
Oxana V. Kharissova ◽  
Boris I. Kharisov ◽  
Victor Manuel Jiménez-Pérez ◽  
Blanca Muñoz Flores ◽  
Ubaldo Ortiz Méndez
Keyword(s):  
State Of The Art ◽  
Ultrasmall Particles

The MgO(111) versus MgO(100) supported Au ultrasmall particles as a model catalyst for carbon monoxide oxidation

2018 ◽  
Vol 276 ◽  
pp. 28-32 ◽  
Author(s):  
G.S. Grigorkina ◽  
V.B. Zaalishvili ◽  
O.G. Burdzieva ◽  
K. Fukutani ◽  
T.T. Magkoev
Keyword(s):  
Carbon Monoxide ◽  
Carbon Monoxide Oxidation ◽  
Model Catalyst ◽  
Ultrasmall Particles

Non-alcoholic steatohepatitis is visualized non-invasively by ultrasmall-particles iron oxide (uspio) enhanced MRI

2014 ◽  
Vol 235 (2) ◽  
pp. e71
Author(s):  
L.P. Smits ◽  
B.F. Coolen ◽  
W.H. Nijhof ◽  
J. Runge ◽  
J. Verheij ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Alcoholic Steatohepatitis ◽  
Enhanced Mri ◽  
Ultrasmall Particles

scholarly journals Tumor-Microenvironment- Responsive Size-Shrinkable Drug-Delivery Nanosystems for Deepened Penetration Into Tumors

2020 ◽  
Vol 7 ◽  
Author(s):  
Xiaoliang Cheng ◽  
Houli Li ◽  
Xuemei Ge ◽  
Lijuan Chen ◽  
Yao Liu ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Tumor Microenvironment ◽  
Academic Research ◽  
Deep Penetration ◽  
Acidic Ph ◽  
Passive Targeting ◽  
Enhanced Permeability And Retention ◽  
Influence Diffusion ◽  
Cancer Diseases ◽  
Ultrasmall Particles

Over the years, the manipulation and clinical application of drug-delivery nanosystems for cancer diseases have attracted a rapid growth of academic research interests, and some nanodrugs have been approved for clinic application. Although encouraging achievements have been made, the potency of nanomedicines in cancer treatment is far from satisfaction, and one significant reason is the inefficient penetration of nanoparticles into solid tumors. Particle size is one of the most significant features that influence diffusion ability of the drug-delivery system in tumors. Size-shrinkable drug-delivery nanosystems possess a size-switchable property that can achieve passive targeting via the enhanced permeability and retention (EPR) effect and transform into ultrasmall particles in tumors for deep penetration into tumors. The tumor microenvironment is characterized by acidic pH, hypoxia, upregulated levels of enzymes, and a redox environment. In this review, we summarize and analyze the current research progresses and challenges in tumor microenvironment responsive size-shrinkable drug-delivery nanosystems. We further expect to present some meaningful proposals and enlightenments on promoting deep penetration into tumors of nanoparticles.

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