Poster 278: Steroid Induced Psychosis Caused by Sacroiliac Joint Injection: A Case Report

Sinha, Anupam; Broyer, Zach; Dholakia, Madhuri

doi:10.1016/j.pmrj.2009.08.300

Cited by 8 publications

(11 citation statements)

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“…[2][3][4] Due to its relatively long degradation time it has been used for long term in vivo implantation. [5] Other applications of the polymer range from packaging [6] to resorbable sutures, [7,8] tissue engineering, [9][10][11] drug delivery [11][12][13] and bone graft substitutes. [14,15] The use of atmospheric pressure plasma combined with the liquid delivery of precursors allows functional coatings to be applied on a wide range of surfaces.…”

Section: Introductionmentioning

confidence: 99%

Deposition of Biodegradable Polycaprolactone Coatings Using an In‐line Atmospheric Pressure Plasma System

Tynan

Ward

Byrne

et al. 2009

Plasma Processes & Polymers

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Polycaprolactone (PCL) is a biodegradable and bioresorbable polymer with applications ranging from use in packaging to medical sutures. In this study, the use of an atmospheric pressure plasma to deposit plasma polymerised PCL (P‐PCL) coatings from a PCL diol precursor is evaluated. Fourier transform infrared spectroscopy demonstrated the retention of PCL functional groups in the deposited coating. Changes in coating surface energy were monitored with time after deposition using the contact angle technique. The rate of degradation of 500 nm thick P‐PCL coatings was assessed after immersion in a phosphate‐buffered saline (PBS) solution at 37 °C. It was observed that slower rates of P‐PCL coating degradation were obtained for coatings deposited at higher applied powers and lower precursor flow rates.

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Section: Introductionmentioning

confidence: 99%

Deposition of Biodegradable Polycaprolactone Coatings Using an In‐line Atmospheric Pressure Plasma System

Tynan

Ward

Byrne

et al. 2009

Plasma Processes & Polymers

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“…The recovered polymer was dried under vacuum until constant weight to remove the remaining solvents, affording PCL as a pure brown solid material (8.73 g, 89%). 1 H NMR (500 MHz, CDCl 3 , δ):…”

Section: Rop Of ε-Caprolactonementioning

confidence: 99%

“…Aliphatic polyester, such as polycaprolactones (PCLs), have shown an interesting potential for biological and medical applications based on their biodegradability and biocompatibility. [1,2] PCLs have been reported to be nontoxic and semicrystalline materials with a degree of crystallinity that reaches 69%. [3] They used to be one of the most frequently absorbable biomaterials used in drug delivery, tissue scaffold, and surgical implants due to their biocompatibility, low T g , and high permeability.…”

Section: Introductionmentioning

confidence: 99%

“…[3] They used to be one of the most frequently absorbable biomaterials used in drug delivery, tissue scaffold, and surgical implants due to their biocompatibility, low T g , and high permeability. [1,4,5] PCLs are able to be used as thermoplastics in many general applications. [6] The time of degradation of PCLs varies between several months and several years depending on molecular www.advancedsciencenews.com www.mcp-journal.de…”

Section: Introductionmentioning

confidence: 99%

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Catalyst‐Free Ring Opening Synthesis of Biodegradable Poly(ester‐urethane)s Using Isosorbide Bio‐Based Initiator

Mahdi

M'sahel

Medimagh³

2017

Macro Chemistry & Physics

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Polycaprolactones are obtained via ring opening polymerization of ε‐caprolactone in catalyst‐free condition. The polymerization is initiated in bulk, using isosorbide‐based amino‐alcohol as a biosourced initiator. The ratio of initiator to ε‐caprolactone, as well as to temperature, is optimized in order to tune the hydroxyl number (Nr. OH) and the average molecular weight of the polymers. In addition, these biocompatible polyesters are used as soft‐block to prepare thermoplastic poly(esterurethane)s elastomers via a simple one‐pot catalyst‐free polymerization. The successful synthesis of poly(esterurethane)s is confirmed by Fourier transform‐infrared spectroscopy, and the thermal properties are studied by differential scanning calorimetry. These novel materials exhibit glass transition temperatures ranging from 7 to 38 °C. The biodegradability of these elastomers is evaluated by enzymatic degradation tests performed at rt in phosphate buffer solution (pH ≈ 7.4). The mass loss of polymer films is around 3% after 4 weeks. Scan electron as well as atomic force microscopies are used to show the degradation patterns.

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“…As a biodegradable and bioabsorbable polymer, poly(e-caprolactone) (PCL) has been widely used in biomedical engineering for its excellent mechanical properties, good biocompatibility, low toxicity, and nonimmunogenicity. 1,2 But the high crystallinity and hydrophobicity of PCL, which lead to long degradation, limit its usage in tissue engineering applications. [2][3][4] Many strategies have been carried out to solve the above problems.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of functionalizable and biodegradable polymers via ring‐opening polymerization of 5‐benzyloxy‐trimethylene carbonate and ε‐caprolactone

Lai¹,

Ji²,

Long³

et al. 2011

J of Applied Polymer Sci

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The biomedical applications of poly(e-caprolactone) (PCL) were limited for its high hydrophobicity and crystallinity. In this study, we copolymerized CL with amorphous 5-hydroxyl-trimethylene carbonate (HTMC) to solve the problem. The 5-benzyloxy-trimethylene carbonate (BTMC) was synthesized to copolymerize with CL, then hydrogenolyzed to obtain hydroxyl pendant groups. A serial of copolymers with different BTMC molar ratio were synthesized and their chemical structures and thermal properties were thoroughly studied with NMR, FT-IR, GPC, XRD, DSC, and TGA. Finally we examined the water contact angle of the copolymers. DSC and XRD results showed that the PCL segments in the copolymers crystallized below 16.8%. BTMC molar content and the crystallinity of the copolymers increased after hydrolysis. With the introduced hydroxyl pendant groups, the deprotected copolymers improved their hydrophilic property significantly, and the copolymer with 9.3% HTMC molar content had static water contact angle as low as 36.5 .

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Poster 278: Steroid Induced Psychosis Caused by Sacroiliac Joint Injection: A Case Report

Cited by 8 publications

References 0 publications

Deposition of Biodegradable Polycaprolactone Coatings Using an In‐line Atmospheric Pressure Plasma System

Deposition of Biodegradable Polycaprolactone Coatings Using an In‐line Atmospheric Pressure Plasma System

Catalyst‐Free Ring Opening Synthesis of Biodegradable Poly(ester‐urethane)s Using Isosorbide Bio‐Based Initiator

Synthesis of functionalizable and biodegradable polymers via ring‐opening polymerization of 5‐benzyloxy‐trimethylene carbonate and ε‐caprolactone

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