# US 10,117,435 B2 · Composition containing an organosilane and a photocatalyst, and methods of treating flowering plants infected with a bacterial disease using the composition

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- Number: US 10,117,435 B2
- Document ID: US10117435B2
- Status: Granted
- Kind: B2
- Application number: 15/055,198
- Filed: 2016-02-26
- Published: 2016-09-01
- Granted: 2018-11-06
- Earliest claimed: 2015-02-27
- Assignees: Nano Photo Sciences, LLC
- Applicants: Nano Photo Sciences, LLC
- Inventors: Christopher C. Willette; Thomas D. Anspach
- Web page: https://patentgrep.com/patent/US10117435B2

## CPC

- A01N 55/00: Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur (containing organo-phosphorus compounds A01N57/00)
- A01N 59/16: Heavy metals; Compounds thereof
- B01J 21/063: {Titanium; Oxides or hydroxides thereof}
- B01J 35/39: Photocatalytic properties
- B01J 35/45: Nanoparticles
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

## Abstract

The present invention relates to a composition for treating plants inflicted with a bacterial disease transmitted by a psyllid vector, and methods of treating plant disease transmitted by a psyllid vector. The composition comprises an organosilane, preferably an organosilane quaternary ammonium, and a photocatalyst, such as titanium dioxide.

## Claims

### Claim 1

A method for treating or protecting a citrus plant comprising:
applying, via a foliar spray or root drench, a composition to one or more components of a viable citrus plant or citrus plant part inflicted with, exposed to, or predisposed to Huanglongbing (HLB), or citrus greening disease, which upon application is transported into said plant vasculature;
said composition free of alcohol and configured for absorption into said plant's vasculature system via stomata sites or via root drenching to attack specific plant pathogens associated with Huanglongbing (HLB), or citrus greening disease, said composition comprising:
an organosilane having a saline base and a positively charged component;
a photocatalytically activated molecule;
said organosilane and said photocatalytically activated molecule in sufficient concentration, which, in combination, is sufficient to treat said viable citrus plant or citrus plant part inflicted with, exposed to, or predisposed to said Huanglongbing (HLB), or citrus greening disease.

### Claim 2 (depends on 1)

The method for treating or protecting a citrus plant according to claim 1 wherein said disease is a result of a vasculature system limiting bacterial pathogen.

### Claim 3 (depends on 1)

The method for treating or protecting a citrus plant according to claim 1 wherein said pathogen is a vasculature system limiting bacterial pathogen.

### Claim 4 (depends on 1)

The method according to claim 1 wherein said photocatalytically activated molecule is a metal-oxide crystalline mineral catalyst.

### Claim 5 (depends on 1)

The method according to claim 1 wherein said photocatalytically activated molecule is a nano particle metal-oxide crystalline mineral catalyst.

### Claim 6 (depends on 1)

The method according to claim 1 wherein said organosilane is an organosilane quaternary compound.

### Claim 7 (depends on 6)

The method according to claim 6 wherein said organosilane quaternary compounds are:
3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride;
3-(trimethoxysilyl)propyldidecylmethyl ammonium chloride;
3-(trimethoxysilyl)propyltetradecyidimethyl ammonium chloride;
3-(trimethoxysilyl)propyldimethylsoya ammonium chloride;
3-(trimethoxysilyl)propyldimethyloleyl ammonium chloride;
3-(trimethoxysilyl)propyloctadecyl ammonium chloride;
3-(trimethoxysilyl)propyloleyl ammonium chloride;
3-(trihydroxysilyl)propyldimethyloctadecyl ammonium chloride;
3-(trimethoxysilyl)propyldocosane ammonium chloride;
3-(trimethoxysilyl)propylmethyldi(decyl) ammonium chloride;
3-chhlorpropyltrimethoxysilane; octadecyltrimethoxysaline;
perfluorooctyltriethoxysaline; benzalkonium chloride; or glycine betaine, or siltrane compounds.

### Claim 8 (depends on 1)

The method according to claim 1 wherein said photocatalytically activated molecule is titanium dioxide.

### Claim 9 (depends on 8)

The method according to claim 8 wherein said titanium dioxide is used as a nano particle form.

### Claim 10 (depends on 8)

The method according to claim 8 wherein said titanium dioxide is TiO2 anatase grade.

### Claim 11 (depends on 8)

The method according to claim 8 wherein said titanium dioxide is doped with an additional agent.

### Claim 12 (depends on 11)

The method according to claim 11 wherein said titanium dioxide is doped with zinc oxide, zirconium dioxide, nitrogen, silicone, silver, carbon, iron, or copper.