Patent
US 9,334,386NOVEL ANTIMICROBIAL POLYMER -GRAPHENE-SILVER NANOCOMPOSITE
Edreese H. Alsharaeh, Ali Abdel-Rahman Othiman, Mohammad A. Aldosari, Mohammed Faour et al.
US
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Patent
Atlas literature
Patent
US 9,334,386Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Cu rr ently Amended) An antimicrobial nanocomposite composition, comprising: a mixture of a styrene and a methyl methacrylate added using in a specific weight ratio, wherein the specific weight ratio for the styrene and methyl methacrylate is of 1:1 [,] [[;]] and a silver nitrate and a graphene oxide powder added using at 20 weight/weight% of the styrene and methyl methacrylate [[.]] to make a GO/PS-PMMA composite using in-situ radical bulk polymerization; and the GO/PS-PMMA composite, a hydrazine hydrate solution and a silver nitrate mixed using microwave radiation to obtain the antimicrobial nanocomposite having a formula of R- (GO-(PS-PMMA))AgNP.
The composition of claim 1, wherein antimicrobial nanocomposite having a formula of R-(GO- (PS-PMMA))AgNP is used for making a medical device.
The composition of claim 1, wherein antimicrobial nanocomposite having a formula of R-(GO- (PS-PMMA))AgNP is used for making an article.
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
A method, comprising: sonicating a mixture of a specific weight of a graphene powder suspended in specific amount of water for 30 minutes; adding to the mixture a first monomer and a second monomer in a specific ratio and benzoyl peroxide at 5% to make a solution 1, wherein the first monomer and the second monomer are never the same monomer; sonicating the solution 1 for 1 hour; hybridizing the solution 1 after sonication at 60 ° C for 20 hours to produce a 2 RIPLLC 0 32. OO₁CIP₁ graphene-first monomer-second monomer composite; adding and sonicating a specific amount of hydrazine hydrate and silver nitrate to the graphene-first monomer-second monomer composite for an hour to form a mixture 1; and reducing the mixture 1 by microwaving for two minutes form a R-(GO- (PSPMMA))/AgNPs nanocomposite to make an antimicrobial nanocomposite. withdrawn
The method of claim 10, wherein the specific weight is between 300-500 mg of graphene powder and the specific amount of water is 20-30 ml. withdrawn
The method of claim 10, wherein the first monomer is at least one of an ethylene, propylene, styrene, vinyl chloride, ethylene terephthalate, dimethylsiloxane, tetraflouroethylene and methyl methacrylate. withdrawn
The method of claim 10, wherein the second monomer is at least one of an ethylene, propylene, styrene, vinyl chloride, ethylene terephthalate, dimethylsiloxane, tetraflouroethylene and methyl methacrylate. withdrawn
The method of claim 10, wherein the specific amount of hydrazine hydrate is 40u 1. withdrawn
The method of claim 10, wherein the specific amount of silver nitrate is 0.08g. withdrawn
canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials1 process step
400 mg of graphene oxide (GO) suspended in 25 ml water, sonicated for 30 minutes. 80 mg (20 wt%) silver nitrate added and stirred for 30 minutes. 40 µl hydrazine hydrate added. Reduced in microwave oven (Kenwood MW740, 900W) in 30 s cycles (10 s on, 20 s off) for total 1.2 minutes. Centrifuged at 5000 rpm for 15 min and dried overnight at 80°C to obtain RGO/AgNPs.
4 materials1 process step
Mixture of styrene/MMA (1:1 wt%), 2.0 wt% of RGO/AgNPs, and 5.0% benzoyl peroxide initiator sonicated for 1 hour, then maintained at 60°C for 20 hours for in situ free radical bulk polymerization. Product poured into excess methanol, washed with hot water, dried at 80°C overnight.
6 materials1 process step
Mixture of styrene/MMA (1:1 wt%), 2.0 wt% GO, and 5.0% benzoyl peroxide sonicated for 1 hour, then maintained at 60°C for 20 hours for in situ free radical bulk polymerization to produce GO/PS-PMMA composites. Then 0.40 g GO/PS-PMMA, 40 µl hydrazine hydrate, and 0.08 g AgNO₃ sonicated for 1 hour and reduced using microwave irradiation to obtain R-(GO-(PS-PMMA))/AgNPs nanocomposite.
1 material
Antimicrobial susceptibility test conducted in nutrient agar by disk-diffusion test (Kirby-Bauer method). E. coli HB₁₀₁ K⁻¹² grown overnight in nutrient broth at 37°C. 0.1 ml spread on nutrient agar plates. Equal weights (100 mg) of samples placed on center of agar plate. After 24 hours of incubation, inhibition zone diameter measured.
Materials described outside the worked examples.
benzoyl peroxide
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1680–2000 cm | — |
Thickness |
Patent
Atlas literature
Patent
US 9,334,386Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Cu rr ently Amended) An antimicrobial nanocomposite composition, comprising: a mixture of a styrene and a methyl methacrylate added using in a specific weight ratio, wherein the specific weight ratio for the styrene and methyl methacrylate is of 1:1 [,] [[;]] and a silver nitrate and a graphene oxide powder added using at 20 weight/weight% of the styrene and methyl methacrylate [[.]] to make a GO/PS-PMMA composite using in-situ radical bulk polymerization; and the GO/PS-PMMA composite, a hydrazine hydrate solution and a silver nitrate mixed using microwave radiation to obtain the antimicrobial nanocomposite having a formula of R- (GO-(PS-PMMA))AgNP.
The composition of claim 1, wherein antimicrobial nanocomposite having a formula of R-(GO- (PS-PMMA))AgNP is used for making a medical device.
The composition of claim 1, wherein antimicrobial nanocomposite having a formula of R-(GO- (PS-PMMA))AgNP is used for making an article.
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
A method, comprising: sonicating a mixture of a specific weight of a graphene powder suspended in specific amount of water for 30 minutes; adding to the mixture a first monomer and a second monomer in a specific ratio and benzoyl peroxide at 5% to make a solution 1, wherein the first monomer and the second monomer are never the same monomer; sonicating the solution 1 for 1 hour; hybridizing the solution 1 after sonication at 60 ° C for 20 hours to produce a 2 RIPLLC 0 32. OO₁CIP₁ graphene-first monomer-second monomer composite; adding and sonicating a specific amount of hydrazine hydrate and silver nitrate to the graphene-first monomer-second monomer composite for an hour to form a mixture 1; and reducing the mixture 1 by microwaving for two minutes form a R-(GO- (PSPMMA))/AgNPs nanocomposite to make an antimicrobial nanocomposite. withdrawn
The method of claim 10, wherein the specific weight is between 300-500 mg of graphene powder and the specific amount of water is 20-30 ml. withdrawn
The method of claim 10, wherein the first monomer is at least one of an ethylene, propylene, styrene, vinyl chloride, ethylene terephthalate, dimethylsiloxane, tetraflouroethylene and methyl methacrylate. withdrawn
The method of claim 10, wherein the second monomer is at least one of an ethylene, propylene, styrene, vinyl chloride, ethylene terephthalate, dimethylsiloxane, tetraflouroethylene and methyl methacrylate. withdrawn
The method of claim 10, wherein the specific amount of hydrazine hydrate is 40u 1. withdrawn
The method of claim 10, wherein the specific amount of silver nitrate is 0.08g. withdrawn
canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials1 process step
400 mg of graphene oxide (GO) suspended in 25 ml water, sonicated for 30 minutes. 80 mg (20 wt%) silver nitrate added and stirred for 30 minutes. 40 µl hydrazine hydrate added. Reduced in microwave oven (Kenwood MW740, 900W) in 30 s cycles (10 s on, 20 s off) for total 1.2 minutes. Centrifuged at 5000 rpm for 15 min and dried overnight at 80°C to obtain RGO/AgNPs.
4 materials1 process step
Mixture of styrene/MMA (1:1 wt%), 2.0 wt% of RGO/AgNPs, and 5.0% benzoyl peroxide initiator sonicated for 1 hour, then maintained at 60°C for 20 hours for in situ free radical bulk polymerization. Product poured into excess methanol, washed with hot water, dried at 80°C overnight.
6 materials1 process step
Mixture of styrene/MMA (1:1 wt%), 2.0 wt% GO, and 5.0% benzoyl peroxide sonicated for 1 hour, then maintained at 60°C for 20 hours for in situ free radical bulk polymerization to produce GO/PS-PMMA composites. Then 0.40 g GO/PS-PMMA, 40 µl hydrazine hydrate, and 0.08 g AgNO₃ sonicated for 1 hour and reduced using microwave irradiation to obtain R-(GO-(PS-PMMA))/AgNPs nanocomposite.
1 material
Antimicrobial susceptibility test conducted in nutrient agar by disk-diffusion test (Kirby-Bauer method). E. coli HB₁₀₁ K⁻¹² grown overnight in nutrient broth at 37°C. 0.1 ml spread on nutrient agar plates. Equal weights (100 mg) of samples placed on center of agar plate. After 24 hours of incubation, inhibition zone diameter measured.
Materials described outside the worked examples.
benzoyl peroxide
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1680–2000 cm | — |
Thickness |
Patent
Atlas literature
Patent
US 9,334,386Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Cu rr ently Amended) An antimicrobial nanocomposite composition, comprising: a mixture of a styrene and a methyl methacrylate added using in a specific weight ratio, wherein the specific weight ratio for the styrene and methyl methacrylate is of 1:1 [,] [[;]] and a silver nitrate and a graphene oxide powder added using at 20 weight/weight% of the styrene and methyl methacrylate [[.]] to make a GO/PS-PMMA composite using in-situ radical bulk polymerization; and the GO/PS-PMMA composite, a hydrazine hydrate solution and a silver nitrate mixed using microwave radiation to obtain the antimicrobial nanocomposite having a formula of R- (GO-(PS-PMMA))AgNP.
The composition of claim 1, wherein antimicrobial nanocomposite having a formula of R-(GO- (PS-PMMA))AgNP is used for making a medical device.
The composition of claim 1, wherein antimicrobial nanocomposite having a formula of R-(GO- (PS-PMMA))AgNP is used for making an article.
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
A method, comprising: sonicating a mixture of a specific weight of a graphene powder suspended in specific amount of water for 30 minutes; adding to the mixture a first monomer and a second monomer in a specific ratio and benzoyl peroxide at 5% to make a solution 1, wherein the first monomer and the second monomer are never the same monomer; sonicating the solution 1 for 1 hour; hybridizing the solution 1 after sonication at 60 ° C for 20 hours to produce a 2 RIPLLC 0 32. OO₁CIP₁ graphene-first monomer-second monomer composite; adding and sonicating a specific amount of hydrazine hydrate and silver nitrate to the graphene-first monomer-second monomer composite for an hour to form a mixture 1; and reducing the mixture 1 by microwaving for two minutes form a R-(GO- (PSPMMA))/AgNPs nanocomposite to make an antimicrobial nanocomposite. withdrawn
The method of claim 10, wherein the specific weight is between 300-500 mg of graphene powder and the specific amount of water is 20-30 ml. withdrawn
The method of claim 10, wherein the first monomer is at least one of an ethylene, propylene, styrene, vinyl chloride, ethylene terephthalate, dimethylsiloxane, tetraflouroethylene and methyl methacrylate. withdrawn
The method of claim 10, wherein the second monomer is at least one of an ethylene, propylene, styrene, vinyl chloride, ethylene terephthalate, dimethylsiloxane, tetraflouroethylene and methyl methacrylate. withdrawn
The method of claim 10, wherein the specific amount of hydrazine hydrate is 40u 1. withdrawn
The method of claim 10, wherein the specific amount of silver nitrate is 0.08g. withdrawn
canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials1 process step
400 mg of graphene oxide (GO) suspended in 25 ml water, sonicated for 30 minutes. 80 mg (20 wt%) silver nitrate added and stirred for 30 minutes. 40 µl hydrazine hydrate added. Reduced in microwave oven (Kenwood MW740, 900W) in 30 s cycles (10 s on, 20 s off) for total 1.2 minutes. Centrifuged at 5000 rpm for 15 min and dried overnight at 80°C to obtain RGO/AgNPs.
4 materials1 process step
Mixture of styrene/MMA (1:1 wt%), 2.0 wt% of RGO/AgNPs, and 5.0% benzoyl peroxide initiator sonicated for 1 hour, then maintained at 60°C for 20 hours for in situ free radical bulk polymerization. Product poured into excess methanol, washed with hot water, dried at 80°C overnight.
6 materials1 process step
Mixture of styrene/MMA (1:1 wt%), 2.0 wt% GO, and 5.0% benzoyl peroxide sonicated for 1 hour, then maintained at 60°C for 20 hours for in situ free radical bulk polymerization to produce GO/PS-PMMA composites. Then 0.40 g GO/PS-PMMA, 40 µl hydrazine hydrate, and 0.08 g AgNO₃ sonicated for 1 hour and reduced using microwave irradiation to obtain R-(GO-(PS-PMMA))/AgNPs nanocomposite.
1 material
Antimicrobial susceptibility test conducted in nutrient agar by disk-diffusion test (Kirby-Bauer method). E. coli HB₁₀₁ K⁻¹² grown overnight in nutrient broth at 37°C. 0.1 ml spread on nutrient agar plates. Equal weights (100 mg) of samples placed on center of agar plate. After 24 hours of incubation, inhibition zone diameter measured.
Materials described outside the worked examples.
benzoyl peroxide
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1680–2000 cm | — |
Thickness |
Patent
Atlas literature
Patent
US 9,334,386Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Cu rr ently Amended) An antimicrobial nanocomposite composition, comprising: a mixture of a styrene and a methyl methacrylate added using in a specific weight ratio, wherein the specific weight ratio for the styrene and methyl methacrylate is of 1:1 [,] [[;]] and a silver nitrate and a graphene oxide powder added using at 20 weight/weight% of the styrene and methyl methacrylate [[.]] to make a GO/PS-PMMA composite using in-situ radical bulk polymerization; and the GO/PS-PMMA composite, a hydrazine hydrate solution and a silver nitrate mixed using microwave radiation to obtain the antimicrobial nanocomposite having a formula of R- (GO-(PS-PMMA))AgNP.
The composition of claim 1, wherein antimicrobial nanocomposite having a formula of R-(GO- (PS-PMMA))AgNP is used for making a medical device.
The composition of claim 1, wherein antimicrobial nanocomposite having a formula of R-(GO- (PS-PMMA))AgNP is used for making an article.
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
A method, comprising: sonicating a mixture of a specific weight of a graphene powder suspended in specific amount of water for 30 minutes; adding to the mixture a first monomer and a second monomer in a specific ratio and benzoyl peroxide at 5% to make a solution 1, wherein the first monomer and the second monomer are never the same monomer; sonicating the solution 1 for 1 hour; hybridizing the solution 1 after sonication at 60 ° C for 20 hours to produce a 2 RIPLLC 0 32. OO₁CIP₁ graphene-first monomer-second monomer composite; adding and sonicating a specific amount of hydrazine hydrate and silver nitrate to the graphene-first monomer-second monomer composite for an hour to form a mixture 1; and reducing the mixture 1 by microwaving for two minutes form a R-(GO- (PSPMMA))/AgNPs nanocomposite to make an antimicrobial nanocomposite. withdrawn
The method of claim 10, wherein the specific weight is between 300-500 mg of graphene powder and the specific amount of water is 20-30 ml. withdrawn
The method of claim 10, wherein the first monomer is at least one of an ethylene, propylene, styrene, vinyl chloride, ethylene terephthalate, dimethylsiloxane, tetraflouroethylene and methyl methacrylate. withdrawn
The method of claim 10, wherein the second monomer is at least one of an ethylene, propylene, styrene, vinyl chloride, ethylene terephthalate, dimethylsiloxane, tetraflouroethylene and methyl methacrylate. withdrawn
The method of claim 10, wherein the specific amount of hydrazine hydrate is 40u 1. withdrawn
The method of claim 10, wherein the specific amount of silver nitrate is 0.08g. withdrawn
canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials1 process step
400 mg of graphene oxide (GO) suspended in 25 ml water, sonicated for 30 minutes. 80 mg (20 wt%) silver nitrate added and stirred for 30 minutes. 40 µl hydrazine hydrate added. Reduced in microwave oven (Kenwood MW740, 900W) in 30 s cycles (10 s on, 20 s off) for total 1.2 minutes. Centrifuged at 5000 rpm for 15 min and dried overnight at 80°C to obtain RGO/AgNPs.
4 materials1 process step
Mixture of styrene/MMA (1:1 wt%), 2.0 wt% of RGO/AgNPs, and 5.0% benzoyl peroxide initiator sonicated for 1 hour, then maintained at 60°C for 20 hours for in situ free radical bulk polymerization. Product poured into excess methanol, washed with hot water, dried at 80°C overnight.
6 materials1 process step
Mixture of styrene/MMA (1:1 wt%), 2.0 wt% GO, and 5.0% benzoyl peroxide sonicated for 1 hour, then maintained at 60°C for 20 hours for in situ free radical bulk polymerization to produce GO/PS-PMMA composites. Then 0.40 g GO/PS-PMMA, 40 µl hydrazine hydrate, and 0.08 g AgNO₃ sonicated for 1 hour and reduced using microwave irradiation to obtain R-(GO-(PS-PMMA))/AgNPs nanocomposite.
1 material
Antimicrobial susceptibility test conducted in nutrient agar by disk-diffusion test (Kirby-Bauer method). E. coli HB₁₀₁ K⁻¹² grown overnight in nutrient broth at 37°C. 0.1 ml spread on nutrient agar plates. Equal weights (100 mg) of samples placed on center of agar plate. After 24 hours of incubation, inhibition zone diameter measured.
Materials described outside the worked examples.
benzoyl peroxide
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1680–2000 cm | — |
Thickness |
| 4000 -500 cm |
| — |
| 4000 -500 cm |
| — |
| 4000 -500 cm |
| — |
| 4000 -500 cm |
| — |