Tzu-Ming Wang

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—In the nanometer-scale CMOS technology, the gate-oxide thickness has been scaled down to provide higher operating speed with lower power supply voltage. However, regarding compatibility with the earlier defined standards or interface protocols of CMOS ICs in a microelectronics system, the chips fabricated in the advanced CMOS processes face the gate-oxide(More)
Baby hamster kidney (BHK) fibroblasts increase their cell capacitance by 25-100% within 5 s upon activating maximal Ca influx via constitutively expressed cardiac Na/Ca exchangers (NCX1). Free Ca, measured with fluo-5N, transiently exceeds 0.2 mM with total Ca influx amounting to approximately 5 mmol/liter cell volume. Capacitance responses are half-maximal(More)
—A new design on mixed-voltage I/O buffers with slew-rate control but without gate-oxide reliability problem in low-voltage CMOS process is proposed. The proposed circuit can effectively reduce the ground bounce effects without suffering gate-oxide reliability problems and hot-carrier degradation issues. The proposed mixed-voltage I/O buffer with slew-rate(More)
—A new 2xVDD-tolerant crystal oscillator circuit realized with 1xVDD CMOS devices without suffering gate-oxide reliability issue is proposed, which is one of the key mixed-voltage I/O cells in a cell library. The proposed circuit is realized with only thin gate-oxide devices with floating n-well technique. The proposed 2xVDD-tolerant crystal oscillator(More)
The reciprocal synapse between photoreceptors and horizontal cells underlies lateral inhibition and establishes the antagonistic center-surround receptive fields of retinal neurons to enhance visual contrast. Despite decades of study, the signal mediating the negative feedback from horizontal cells to cones has remained under debate because the small,(More)
Little is known about the cis-acting elements controlling transcriptional activities of fish rhodopsin and myf-5 genes. Transgenic medaka and zebrafish were used to characterize promoters of carp (Cyprinus carpio) rhodopsin gene (cRh) and zebrafish (Danio rerio) myf-5 gene (myf-5), respectively. Transgenic medaka carrying different lengths of cRh upstream(More)
We have compared Ca-dependent exocytosis in excised giant membrane patches and in whole-cell patch clamp with emphasis on the rat secretory cell line, RBL. Stable patches of 2-4 pF are easily excised from RBL cells after partially disrupting actin cytoskeleton with latrunculin A. Membrane fusion is triggered by switching the patch to a cytoplasmic solution(More)
  • David H Hackos, Patrick J Lupardus, Teddy Grand, Yelin Chen, Tzu-Ming Wang, Paul Reynen +9 others
  • 2016
To enhance physiological function of NMDA receptors (NMDARs), we identified positive allosteric modulators (PAMs) of NMDARs with selectivity for GluN2A subunit-containing receptors. X-ray crystallography revealed a binding site at the GluN1-GluN2A dimer interface of the extracellular ligand-binding domains (LBDs). Despite the similarity between the LBDs of(More)