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NANOTECHNOLOGY APPLICATIONS FOR TREATMENT: COST EFFECTIVE AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS. Wilfred Chen Chemical and Environmental Engineering University of California, Riverside. Why Nanomaterials?.

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NANOTECHNOLOGY APPLICATIONS FOR TREATMENT: COST EFFECTIVE AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Wilfred Chen

Chemical and Environmental Engineering

University of California, Riverside


Why nanomaterials
Why Nanomaterials? AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

  • Ability to manipulate, control and build materials at the atomic and molecular level

  • Provide novel affinity, capacity, and selectivity because of their unique physical, chemical and biological properties.

  • Create large structures with new molecular organization that will facilitate recovery


Types of nanomaterials for environmental treatments
Types of Nanomaterials for Environmental Treatments AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

  • 1. Smart modified surfaces or membranes

  • 2. Nanostructured materials

  • 3. Molecularly imprinted polymers

  • 4. Nanoscale Biopolymers


Smart Surfaces or Membranes AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Active membranes for heavy metal removal
Active Membranes for Heavy Metal Removal AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Types of modifying peptides
Types of modifying peptides AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

poly-L-glutamate or aspartate

poly-L-lysine or arginine

poly-L-cysteine

Ritche et al. ES&T 2001


Metal chelating behavior
Metal Chelating Behavior AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

poly-L-lysine or arginine - oxyanion such as As


Results with poly cysteine membrane
Results with poly-cysteine membrane AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Tunable surfaces for biofouling
Tunable Surfaces for Biofouling AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Ista et al. Appl. Environ. Microbiol. 1999


Nanostructured Materials AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Poly amidoamine dendrimers
Poly(amidoamine) Dendrimers AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Diallo et al. ES&T 1999


Binding properties
Binding properties AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Polymeric nanoparticles
Polymeric Nanoparticles AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Tungittiplakorn et al. Appl. Environ. Microbiol. 2004


Enhance pah desorption
Enhance PAH Desorption AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Amphiphilic polyurethane nanoparticles
Amphiphilic Polyurethane AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGSNanoparticles

Kim et al. Journal of Applied Polymer Science 2004

90 nm in size


Enhanced pah solubility
Enhanced PAH Solubility AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Phema beads containing n methacryloylhistidine
PHEMA Beads AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGScontaining N-Methacryloylhistidine

Say et al. Macromol. Mater. Eng. 2002


Metal removal
Metal Removal AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Molecularly Imprinted Polymers AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Atrazine imprinted polymers
Atrazine-Imprinted Polymers AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Cacho et al. Anal Bioanal Chem2002


Imprinted polymers for virus removal

100% AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

90%

80%

70%

60%

50%

40%

30%

20%

10%

0%

6.89E+05

6.89E+04

6.89E+03

6.89E+02

Imprinted Polymers for Virus Removal

Infection Frequency of

Spodoptera frugiperda 9 (Sf9) cells

Dilution (pfu/mL)


Reactive polymer hydrogel for phosphate removal
Reactive Polymer Hydrogel for Phosphate Removal AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Kiofinas et al. ES&T 2003


Efficiency of removal
Efficiency of Removal AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Perchlorate removal
Perchlorate Removal AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Kioussis et al. Journal of Applied Polymer Science 2001


Efficiency of removal1
Efficiency of Removal AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS


Tunable biopolymer with metal binding property

Fine tune affinity with different binding sequence AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Fine tune DT by controlling amino acid sequence and no. of repeating unit (VPGXG)n

Tunable Biopolymer with Metal-Binding Property

Elastin Domain Metal Binding Domain


Plasmid AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Enzyme

Recombinant

plasmid

Synthetic gene

ELP biopolymers

Genetic and Protein Engineering Methodology


Metal removal1
Metal Removal AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

Recycling

DT

Cd2+

+

Cd2+

Regeneration

Cd2+

DT

Cd2+


Production of biopolymers
Production of Biopolymers AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

A B C D E

Biopolymer

Protein yield

(mg/3 L)

A, Ela38H6

B, Ela58H6

C, Ela78H6

D, Ela78

E, Ela78H12

Ela38H6

289

Ela58H6

295

Ela78H6

Ela78

Ela78H12

207

191

168

Kostal et al. Marcomolecules, 34, 2257-2261, 2001


Hg AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS2+

MerR can serve as a specific mercury binding domain

C123

C79

C114

C114

C79

C123

MerR-Hg complex


Selective binding of mercury by ela153 merr biopolymer
Selective Binding of Mercury by AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGSEla153-MerR Biopolymer

Acidic waste water (pH 4)

Kostal et al. ES&T 2003


Acknowledgement
Acknowledgement AND RAPID TECHNOLOGIES; SMART MATERIALS OR ACTIVE SURFACE COATINGS

R829606

Exploratory Research: Nanotechnology


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