Liwei Lin (Advisor)

Research Advised by Professor Liwei Lin

Lin Group:  List of Projects | List of Researchers

BPN474: Micro CVD for Nanostructure Synthesis

Qin Zhou
2011

This project intends to miniaturize the conventional chemical vapor deposition (CVD) system into the micrometers range in dimension. It is believed that Micro-CVD provides better control on the gas flow, gas temperature and gas species in some aspects. This may result in the sythesis of unique nanostructures with new properties. Based on the idea, a prototype micro machined silicon structure is fabricated in the Microlab and is used to synthesize carbon nanotubes (CNTs) and graphene. The CNTs can directly be grown on varies of substrate including paper and plastic, and they are of...

LWL20: CMOS-Compatible Synthesis of Carbon Nanotubes for Sensor Applications

Bao Quoc Ta
Quoc-Huy Nguyen
Heather Chiamori
2012

The goal of this project is to develop a microelectronics-compatible synthesis method and direct integration of carbon nanotubes into MEMS and CMOS for sensors applications. Electrical process control, compatible with automation and wafer-level production, has been implemented. The project is partially carried out within the collaboration program between Vestfold University College (Norway) and UC Berkeley which is funded by The Norwegian Centre for International Cooperation in Higher Education (SIU).

Project end date: 08/14/12

BPN403: Functional and Organized Cellular Substrates

Adrienne T. Higa
2012

While single cell studies have historically been the driving force for cell biology, collective, or group, behavior is actually the true working mechanism of numerous growth and pathological phenomenon in the body including morphogenesis, wound healing, and cancer metastases. Mechanical micro-environment cues have been demonstrated as important regulators of single cell behavior, and this project focuses on investigating mechanical regulation of collective cell behavior via microtopographic substrates.

Project end date: 08/15/12

BPN554: TiO2 Nanoswords for Clean Energy Applications

Heather C. Chiamori
2012

The uniquely shaped titanium dioxide nanoswords are studied for energy and environmental applications. These nanostructures are synthesized using both induction heating and furnace-based methods.

Project end date: 08/16/12

BPN317: Direct-Write Piezoelectric PVDF Nanogenerator via Near-Field Electrospinning

Jiyoung Chang
Michael Dommer
2012

This project aims to study energy conversion and actuation properties of a new architecture electrospun piezoelectric nanofibers. It presents interesting potentials in various applications including power scavenge, sensing and actuation. Conceptually, we propose an in-situ stretching and poling process for the production of piezoelectric PVDF nanofibers using the "continuous near-field-electrospinning" process. Preliminary results conclude that location and pattern deposition control of continuous NFES are achievable for large area depositions of nanofibers. In this project, we will...

BPN570: Large Area Semi-Permeable Encapsulation Membranes Using Carbon Nanotube Composites

Armon Mahajerin
2012

The primary goal of this project is to develop a unique composite layer with carbon nanotubes to achieve both the release and encapsulation of devices fabricated on silicon wafers for large area applications. Previously, permeable polysilicon has been used for this purpose, but this process requires multiple, lengthy process steps in order to generate permeability. A composite membrane of carbon nanotubes and polysilicon may achieve desired permeability for sacrifical etching of underlying oxides, followed by low pressure chemical vapor deposition to seal the fabricated device in...

BPN517: Facile Synthesis of Nanostructures for Renewable Energy and Gas Sensing Applications

Kevin Limkrailassiri
2013

Oxide semiconductors have been attracting great interest for renewable energy and sensing applications due to their earth- abundance, stability, and cost-effectiveness. In this project, we explore cupric oxide (CuO) nanowires, which are grown in highly dense and vertically aligned arrays via thermal oxidation of copper foil in ambient air. This material shows great promise for photoelectrochemical hydrogen evolution owing to a desirable electronic band gap and exceptional light-trapping properties. Initial results reveal a photocurrent comparable to other high-performing oxide...

BPN675: Implantable Micro Drug Delivery System

Chen Yang
2014

Implantable drug delivery devices that allow for remote, repeatable, and reliable drug delivery are expected to greatly improve the efficacy of medical treatments in the near future. However, few delivery systems to date have met the necessary requirements – sufficient drug storage, precision control over drug delivery, and on-demand activation – to be broadly useful. In this project, we develop an implantable drug delivery device that can be remotely controlled and provide drug on the on- demand basis for several years without replacement. We develop drug release mechanisms and...

BPN438: Microengineered Technologies for Controlling Cellular Functions

Ryan D. Sochol
2014

Mechanical engineering methods and microfabrication techniques offer powerful means for solving biological challenges. In particular, micro/nanofabrication processes enable researchers to engineer technologies at scales that are biologically relevant and advantageous for both controlling and sensing cellular functions. Here, novel micro/nanoengineered platforms are employed to investigate and regulate cellular processes.

Project end date: 08/15/14

BPN473: Next-Generation Microfluidic Components, Circuits and Systems

Ryan D. Sochol
2014

Mechanical engineering methods and microfabrication techniques offer powerful means for solving biological challenges. In particular, microfabrication processes enable researchers to develop technologies at scales that are biologically relevant and advantageous for executing biochemical reactions. Here, microfluidic, optofluidic, an 3D printing-based methodologies are employed to develop autonomous microfluidic components, circuits, and systems for chemical and biological applications.

Project end date: 08/15/14