The dielectric boundary force (DBF) is the force that induced charges at dielectric boundaries exert on the charge that induced them. The DBF is present in any electrostatic problem with a non-uniform dielectric constant, and is important in the case of charged particles near dielectric boundaries. Yet, it is absent in common continuum theories of charge distribution and of charge transport, su...

The intrinsic charging status at the dielectric–electrolyte interface (DEI) plays a critical role for electrofluidic gating in microfluidics and nanofluidics, which offers opportunities for integration of wet ionics with dry electronics. A convenient approach to quantitatively probe the surface charges at the DEI for material preselection purpose has been lacking so far. We report here a low-co...

The build up of polyelectrolyte multilayers (PEMs) was observed by a silicon-on-insulator (SOI) based thin film resistor. Differently charged polyelectrolytes adsorbing to the sensor surface result in defined potential shifts, which decrease with the number of layers deposited. We model the response of the device assuming electrostatic screening of polyelectrolyte charges by mobile ions within ...

We introduce a simulation method for the biosensor environment which treats the semiconductor and the electrolyte region together, using the well-established semiconductor 3D TCAD simulator tool. Using this simulation method, we conduct electrostatic simulations of SiNW biosensors with a more realistic target charge model where the target is described as a charged cube, randomly located across ...

This paper reports a label-free field effect transistor (FET) sensor for the detection of DNA hybridization, which measures the surface potential on oligonucleotide modified electrodes using a direct charge accumulation method. The sensor directly and repeatedly transfers the charges that correspond to the surface potential induced by intrinsic negative charges in immobilized molecules, resulti...

Existing organic imaging circuits, which offer attractive benefits of light weight, low cost and flexibility, are exclusively based on phototransistor or photodiode arrays. One shortcoming of these photo-sensors is that the light signal should keep invariant throughout the whole pixel-addressing and reading process. As a feasible solution, we synthesized a new charge storage molecule and embedd...

Black hole solutions to the Einstein equations coupled with Born--Infeld electromagnetism associated generalized nonlinear electrodynamics, carrying both electric and magnetic charges, often referred as dyonically charged black holes, of finite energies, are constructed. These give rise relegated curvature singularities at center matter sources holes approach classical Reissner--Nordstrom asymp...

We present a construction of the most general BPS black holes STU supergravity (${\cal N}=2$ supersymmetric $D=4$ coupled to three vector super-multiplets) with arbitrary asymptotic values scalar fields. These solutions are obtained by acting subset global symmetry generators on zero scalars, both in U-duality and heterotic frame. The parameterized fourteen parameters: four electric magnetic ch...

We perform magnetic susceptibility and torque measurements on the organic $\kappa$-(BEDT-TTF)$_2$Hg(SCN)$_2$Br, which is recently suggested to host an exotic quantum dipole-liquid in its low-temperature insulating phase. Below metal-insulator transition temperature, follows a Curie-Weiss law with positive particular $M\propto \sqrt{H}$ curve observed. The emergent ferromagnetically interacting ...

The intrinsic charging status at the dielectric-electrolyte interface (DEI) plays a critical role for electrofluidic gating in microfluidics and nanofluidics, which offers opportunities for integration of wet ionics with dry electronics. A convenient approach to quantitatively probe the surface charges at the DEI for material pre-selection purpose has been lacking so far. We report here a low-c...