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The content of atom on the surface of nanoparticle as a function of Pt nanoparticle diameter

 

   

 

 

Energy of atom on the surface is much higher than that in bulk
(10
5 – 107 times)

Change of optical, electrical, or catalytic property

 

 

 

 

 
 


(浦項工科大学 内 バイオプラス 'NANOVERTM' 抜純)

[説明]

PC12cells(Neuronal cells) 悪性腫瘍細胞と SP2cells(Bcells)癌細胞を テストした結果 ppm 前後で急激に悪性腫瘍細胞と癌細胞が死に始めて10ppmでほとんどすべての癌細胞が死ぬことを確認することができます.

 

 

[説明]

10ppm 濃度で癌細胞が死滅したことを見せてくれる光学写真


 
 

 

    NANOVERTM  has strong antimicrobial efficacy against various microorganisms. The table shows the value of the minimal inhibitory concentration (MIC) of each NANOVERTM SCV-WA series type to inhibit the fission or multiplication of each micro-organism. The other types are presumably equal. The MIC is defined as the lowest concentration of NANOVERTM  that completely inhibits the growth of microoganisms.


MIC of NANOVER
TM to various microorganisms[unit:
μg/ml]

Bacteria

characteristies

MIC for NANOVERTM
SCV-WA

Esherichia coli
ATCC 25922

The pollution indicator of food and drinking water

10

Esherichia coli
0157

The bacteria to cause food poisoning by producing velo toxin

10

Pseudomonas aeruginosa
ATCC27853

The bacteria to cause the decay of fishes and shells

10

Staphylococcus aureus
ATCC29213

The bacteria to cause suppuration, ichoremia and food poisoning, etc.

10

Non-spore forming
Bacillus subtilis

The bacteria to cause the decay of milk, meat, etc.

10

Spore forming
Bacillus subtilis

Tehe bacteria to cause the decay of milk, meat, etc.

10

Salmonella typhimurium

The bacteria to cause typhoidal diseases and food poisoning, etc.

10

MRSA

The bacteria to cause in-hospital infection

10

Candida albicans

Pathogenic yeast to cause candidiasis

5

P. Vulgaris

 

5

Enterococcus faecalis
ATCC29212

 

10

    Test method: Agar-dilution method defined by NCCLS
    Department of Internal Medicine, The Catholic University of Korea
    The 54th Conference of The Korean Association of Internal Medicine (2003.10.25)


 

   
 


[説明]

NANOVERTMが青海苔も死滅させることを見せてくれる光学写真


 
 
 

           
 


 
             

[説明]

NANOVERTM is not Ag ion, but metallic nanoparticles




 

          
 

 

NANOVERTM is not Ag ion, but metallic nanoparticles

    The binding energy of Ag core electron of NANOVERTM is higer than Ag bulk (Ag foil) due to size effect of nanoparticles, which is consistent with the known research results.

    In contrast, the binding energy of Ag ion is lower than Ag bulk.


 
 

            
 


-->uniform shape and very narrow particle distribution
 

NANOVERTM (final nanoparticles) consists of several
smaller nanoparticles, called primary nanoparticles.

TEM image after dilution of NANOVERTM  
Final nanoparticles are dissociated into several primary
nanoparticles, which appear such as satellites

 

 

            
     
Good long-term stability
 


   


    Absorption band at approx. 400 nm appears due to surface plasmon of silver nanoparticle.
    The absorption band appears even after a year and no absorption band shows at longer wavelength (~ 700 nm) by aggregation of nanoparticles.
    good stability as a function of time

 
 


 


 

[설명]

下の結果で左側には一般人の手を何らの処理なしに微生物培養固体バッジに約 30秒の間接触後, 1日 37度で捨ておいた時手に残存した微生物が生長するデータで,
右の方にはナノ−ボTM 含有手洗浄剤を塗った後結果を確認したことで手洗浄剤抗菌力によって微生物が生長することができないことを分かる     

.
 

          
 

 
 
100, 1mm x 1mm


    NANOVER
    TM was coated on Si wafer. Above AFM (atomic force microscopy) image shows no sign of aggregation Good dispersion on the surface and good adhesion

 
 

         Method : KS K 0693
         Sample : dipping in the solution of
    SCV-WA702 (10 ppm) for 30 min.
         
    Microorganism : Staphylococcus aureus ATCC 6538
     

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treated (99.9%)



 


 

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after 10 times washing
(98.2%)

 


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