Silane quats

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1.Background[edit]

Dow Corning added silane (SiH4) to quaternary ammonia compounds (QACs or quats), to improve the adhesion of QUATs to a variety of surfaces. In doing so, Dow invented a durable class of antimicrobials that are effective against a range of unicellular organisms.

At least three private companies are primary in the manufacture of these silane quats known variously as SIQUATS, SIQACs and SILQUATS. Synthesis is typically conducted in a methanol, and water-based formulations range in stability depending on the dilution process and/or the presence of stabilizers and additives.

2.Effectiveness[edit]

Literature shows efficacy of SIQUATS against a range of microbes.

US Patent 6,613,755 and other literature sources disclose the following list and references:

Anabaena cylindricia

Chlorella

Chlorophyta (green)

Chrysophyta (brown)

Oscillatoria borneti

Pleurococcus

Protococcus

Scenedesmus quadricauda

Selenastrum gracile

Acinetobacter calcoaceticus

Aeromonas hydrophilia

Bacillus cereus

Bacillus subtilis

Bacillus typhimurium

Citrobacter diversus

Clostridium perfringens

Corynebacterium bovis

Corynebacterium diphtheriae

Enterobacter aerogenes

Enterobacter agglomerans

Enterobacter cloacae

Enterococcus

Enterococcus faecalis

Escherichia coli

Klebsiella pneumoniae

Klebsiella terrigena

Mycobacterium tuberculosis

Propionibacterium acnes

Proteus mirabilis

Proteus vulgaris

Pseudomonas aeruginosa

Pseudomonas cepacia

Salmonella enterica

Salmonella typhi

Salmonella typhimurium

Serratia liquefaciens

Serratia marcescens

Stachybotrys chartarum

Staphylococcus aureus

Staphylococcus epidermidis Streptococcus faecaliis

Streptococcus pyrogenes

Vancomycin-resistant enterococci

Alternaria alternata

Aspergillus flavus

Aspergillus fumigatus

Aspergillus Niger

Bipolaris australiensis

Candida albicans

Candida parapsilosis

Cephaldascus fragans

Cladosporium herbarum

Clonostachys rosea

Cryptococcus humicola

Epidermophyton floccosum

Fusarium nigrum

Fusarium solani

Geotrichum candidum

Gliocladium roseum

Gliomastix cerealis

lternaris species.

Mariannaea elegans

Microsporum audouinii

Monilia grisea

Oospora lactis sp

Oospora lactis

Penicillium albicans

Penicillium chrysogenum

Penicillium citrinum

Penicilliumn notatum

Penicillium notatum

Penicillium variabilei

Stachybotrys atra

Saccharomyces cerevisiae

Trichoderma flavus

Trichosporon mucoides

Trichophyton interdigitale

Trichophyton mentagrophytes

Trichophyton mentagrophytes

3. References[edit]

Useful literature and website references are:

[1] [2] [3] [4] [5] [6] [7] [8]