Results 221 to 230 of about 3,338,865 (284)

Cyclodextrin‐Functionalized Light‐Driven Cu2O Micromotors for Simultaneous Capture and Degradation of Bisphenol A

open access: yesAdvanced Robotics Research, EarlyView.
Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti   +3 more
wiley   +1 more source

Wireless Precise Manipulation of Tumor Spheroids Using a Millirobot Controlled by Permanent Magnetic Traps

open access: yesAdvanced Robotics Research, EarlyView.
A magnetic donut‐like millirobot is developed for label‐free pick‐and‐place of a tumor spheroid wirelessly controlled by a magnetic trap. Spheroids are important 3D multicellular culture systems that recapitulate key structural and functional features of native tissues.
Yue Gao   +8 more
wiley   +1 more source

Chemical Screening Identifies Danofloxacin as a Self‐Renewal Agonist of Embryonic Stem Cells through Alleviation of HDAC1‐Mediated Deacetylation of Tert and Prdm10

open access: yesAdvanced Science, EarlyView.
This study identified Danofloxacin as a novel supporter of the maintenance of mouse embryonic stem cell (ESC) pluripotency. It functions partially by inhibiting HDAC1, which increases specific histone acetylation marks and activates key genes like Tert and Prdm10.
Yan Zhang   +8 more
wiley   +1 more source

Dual Role of Tamoxifen in Enhancing STING and CEACAM1 Expression to Prime a Favorable Tumor Microenvironment for Anti‐TIM3 Immunotherapy

open access: yesAdvanced Science, EarlyView.
Anti‐PD‐1/PD‐L1 blockade has revolutionized cancer immunotherapy, but is ineffective against endocrine‐treated (i.e., Tamoxifen), relapsed ER+ breast cancer (BC) patients. This study provides insight into the sub‐optimal response of ER+BCs to anti‐PD‐1/PD‐L1 blockade – highlighting the induction of STING and the CEACAM1/TIM3 axis after chronic ...
Marvin Angelo E Aberin   +20 more
wiley   +1 more source

Separation of nanorods by density gradient centrifugation

Journal of Chromatography A, 2011
The experimental conditions necessary for the synthesis of well-defined nanoparticles are often difficult to control. There is thus a compelling need for post-synthesis separation of nanoparticles polydispersed in size and shape. We demonstrate here both theoretically and experimentally that gold nanorods with diverse aspect ratios can be separated ...
Bin Xiong
exaly   +3 more sources

Isolation of Lipid Droplets from Cells by Density Gradient Centrifugation

open access: yesCurrent Protocols in Cell Biology, 2016
Lipid droplets are organelles found in most mammalian cells, as well as various plant tissues and yeast. They are composed of a core of neutral lipids surrounded by a membrane monolayer of phospholipids and cholesterol into which specific proteins are ...
Dawn L Brasaemle, Nathan E Wolins
exaly   +1 more source

Centrifugation of brain microsomes in a density gradient

Experimental Cell Research, 1960
Abstract Microsomal preparations from rat brain were centrifuged in various density gradients obtained with different concentrations of sucrose. The different zones of the gradients were analyzed chemically as to their protein and RNA content and examined with the electron microscope as to their content of particles and membrane structures.
V, HANZON, G, TOSCHI
openaire   +2 more sources

The Effects of Overloading in Density-Gradient Centrifugation

European Journal of Biochemistry, 1975
The effects of overloading of the sample zone in density gradient centrifugation have been studied by use of a three-component shelf-lavered sample in which the total protein concentration was increased by addition of different amounts of albumin. It is found that overloading of the gradient gives rise to particle movements which are not predictable ...
J, Steensgaard, N P, Moller, L, Funding
openaire   +2 more sources

Zonal centrifugation in reorienting density gradients

Biochimica et Biophysica Acta (BBA) - General Subjects, 1971
Abstract 1. 1. Zonal rotors which do not require rotating-seal assemblies were tested and employed for quantitative cell fractionations in sucrose density gradients. The design and operation of these rotors represents a departure from other zonal rotors presently in use.
P, Sheeler, D M, Gross, J R, Wells
openaire   +2 more sources

Semen preparation methods and sperm apoptosis: swim-up versus gradient-density centrifugation technique

open access: yesFertility and Sterility, 2009
Objective To compare the effects of density-gradient centrifugation and swim-up on sperm apoptosis by using a multiparameter flow cytometric method. Design Autocontrolled split-sample study. Setting Tertiary infertility center.
Sandra Perticarari   +2 more
exaly   +2 more sources

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