Results 91 to 100 of about 872,290 (294)

Quantum gates by coupled asymmetric quantum dots and controlled-NOT-gate operation

open access: yes, 1999
A quantum computer based on an asymmetric coupled dot system has been proposed and shown to operate as the controlled-NOT-gate. The basic idea is (1) the electron is localized in one of the asymmetric coupled dots.
A. Barenco   +36 more
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Nanoporous gold based electrodes for electrochemical studies of human neuroglobin

open access: yesElectrochemistry Communications, 2020
Human neuroglobin (Ngb) is a heme protein expressed in the brain tissue and retina with an important neuroprotective role. However, its molecular mechanism is still under exploration.
Yasuhiro Mie   +6 more
doaj   +1 more source

Electrostatics of electron-hole interactions in van der Waals heterostructures

open access: yes, 2017
The role of dielectric screening of electron-hole interaction in van der Waals heterostructures is theoretically investigated. A comparison between models available in the literature for describing these interactions is made and the limitations of these ...
Cavalcante, L. S. R.   +4 more
core   +1 more source

Controlling the charge transfer flow at the graphene/pyrene-nitrilotriacetic acid interface [PDF]

open access: yes, 2018
The fabrication of highly efficient bio-organic nanoelectronic devices is still a challenge due to the difficulty in interfacing the biomolecular component to the organic counterparts.
Harputlu, E.   +6 more
core   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

open access: yesMolecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu   +10 more
wiley   +1 more source

Laser Pulse Deposited Nanosized Ceria for Direct Electron Transfer of Glucose Oxidase

open access: yesInternational Journal of Electrochemical Science, 2014
Ceria has a high isoelectric point (IEP~9.2) and its cerium atom reversibly undergoes oxidation/reduction process therefore theoretically capable through electrostatic interactions of immobilizing enzymes with lower IEP and of electrons mediating ...
Mouna Moumene   +4 more
doaj   +1 more source

Circuit theory for crossed Andreev reflection and nonlocal conductance

open access: yes, 2007
Nonlocal currents, in devices where two normal metal terminals are contacted to a superconductor, are determined using the circuit theory of mesoscopic superconductivity.
A. Brataas   +17 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Bioelectrochemical Research on Direct Electron Transfer-type Bioelectrocatalysis and Their Applications

open access: yesElectrochemistry
Direct electron transfer (DET)-type bioelectrocatalysis, in which enzymatic reactions proceed without the involvement of redox mediators, is a powerful approach for investigating intrinsic enzymatic features relevant to the development of advanced ...
Keisei SOWA
doaj   +1 more source

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