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Search Results - i-wei chen

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Composite materials for bone & tissue reconstruction
InventorHoon Choi, I-Wei Chen ProblemMaterials used for bone transplants and as scaffolds for tissue restoration need particular features to work well. Current materials have shortcomings that complicate treatment. Dried silica gels are very attractive because of their nanometer-sized pores, but they lack larger pores that exist in natural bo...
Published: 11/27/2018   |   Inventor(s): Hoon Choi, I-Wei Chen
Keywords(s):  
Category(s): Medical Devices, Therapeutics & Vaccines, Materials
Ruthenates with Large Magnetoresistance
New materials with large magnetoresistive effectsInventorI-Wei ChenProblemMagnetoresistive materials can change their electrical resistance when subject to an applied magnetic field. This property can be used for non-volatile resistance switching memory in which high and low resistance states are used to encode data. A similar effect called EPIR (e...
Published: 11/27/2018   |   Inventor(s): I-Wei Chen
Keywords(s):  
Category(s): Hardware, Circuits, & Sensors, Materials
pH Sensitive Nanoparticles for Drug Delivery
InventorDr. I-Wei Chen http://www.seas.upenn.edu/~iweichen/Technology OverviewMany agents used for oncology are either vulnerable to enzymatic attack or are poorly water-soluble, making them difficult to deliver to a tumor site. This invention describes a novel pH-sensitive peptide-based nanoparticle which can provide a precisely targeted method fo...
Published: 1/31/2018   |   Inventor(s): I-Wei Chen
Keywords(s):  
Category(s): Therapeutics & Vaccines
NON VOLATILE RESISTANCE SWITCHING SI BASED THIN FILM DEVICES
Current non-volatile memory products, a $30B market, are dominated by flash memories. However, flash memory is facing challenges of unable to scale down for future market. Resistance-switching cell is one of the most promising contenders for replacing flash memory. The new member cell developed at Penn is a resistance-switching device using Si-bas...
Published: 1/31/2018   |   Inventor(s): I-Wei Chen
Keywords(s):  
Category(s): Hardware, Circuits, & Sensors
Resistance Switching Materials for Next Generation Non-Volatile Memory
InventorI-Wei Chen http://www.seas.upenn.edu/~iweichen/ ProblemFlash memory is beginning to reach its performance limit. Other emerging memory technologies face challenges that limit their practical use. Resistance switching memory is a leading contender for the next generation of computer memory, but most resistance switching materials are prone t...
Published: 10/8/2015   |   Inventor(s): I-Wei Chen
Keywords(s): Engineering, Semiconductor DevicesĀ 
Category(s): IT, Communication, & Networking, Materials