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Enzo P, Morselli S, Cindolo L, Rabito S, Toso S, Gatti L, Ferrari R, Micali S, Ferrari G. Iatrogenic or recurrent bladder neck contracture treated by the Palminteri-Ferrari technique: a new way to approach a frustrating condition. World J Urol 2024; 42:195. [PMID: 38530433 DOI: 10.1007/s00345-024-04912-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 02/29/2024] [Indexed: 03/28/2024] Open
Abstract
PURPOSE Bladder neck stricture (BNS) is a bothersome disease which may affect patients after trauma or prostatic surgery. It is frustrating due to the low durable success rate of currently available surgical techniques. The aim of the study is to explore the efficacy of a novel technique. MATERIALS & METHODS The surgical protocol was developed by two high case-volume surgeons. The technique consists of Holmium laser incisions at 3-6-9-12 o'clock. Subsequently, triamcinolone acetonide 40 mg is injected. Two months later, the BNS is endoscopically checked in operatory room and re-procedure take place, if necessary (max 3 times). Failure was defined as the need of definitive urinary diversion. Subjective satisfaction was measured through PGI-I Questionnaire. RESULTS A total of 45 patients were enrolled. Median age was 63 (IQR 59-69) years and BNS developed by different causes. Naïve BNS procedure patients were 12 (26.7%), others 33 (73.3%) underwent median 2 (IQR 1-4) previous urethrotomies, including 16 other surgeries. Suprapubic bladder catheter was present in 34 patients (75.6%). No complications were registered. Re-procedure at control was necessary in 24 patients (53.3%) for a median of 1 (IQR 1-3) procedures. At median follow-up of 18 months, failures were 4 (8.9%) and urinary incontinence was reported in 2 patients (4.5%) who required incontinence surgery. Median PGI-I was 2. CONCLUSIONS Our technique of BNS treatment allows good outcomes and high rate of subjective improvement amongst patients. Moreover, naïve patients seem to have better results. However, longer follow-up and higher sample size are mandatory to further assess these data.
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Affiliation(s)
- Palminteri Enzo
- Department of Urology, C.Ur.E., Centro Urologico Europeo, Hesperia Hospital, Via Arquà 80, Modena, Italy
| | - Simone Morselli
- Department of Urology, C.Ur.E., Centro Urologico Europeo, Hesperia Hospital, Via Arquà 80, Modena, Italy.
| | - Luca Cindolo
- Department of Urology, C.Ur.E., Centro Urologico Europeo, Hesperia Hospital, Via Arquà 80, Modena, Italy
| | - Salvatore Rabito
- Department of Urology, C.Ur.E., Centro Urologico Europeo, Hesperia Hospital, Via Arquà 80, Modena, Italy
| | - Stefano Toso
- Department of Urology, C.Ur.E., Centro Urologico Europeo, Hesperia Hospital, Via Arquà 80, Modena, Italy
| | - Lorenzo Gatti
- Department of Urology, C.Ur.E., Centro Urologico Europeo, Hesperia Hospital, Via Arquà 80, Modena, Italy
| | - Riccardo Ferrari
- Department of Urology, C.Ur.E., Centro Urologico Europeo, Hesperia Hospital, Via Arquà 80, Modena, Italy
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Salvatore Micali
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Giovanni Ferrari
- Department of Urology, C.Ur.E., Centro Urologico Europeo, Hesperia Hospital, Via Arquà 80, Modena, Italy
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Palminteri E, Toso S, Preto M, Gatti L, Sedigh O, Buffi NM, Ferrari G, Gobbo A. Small intestinal submucosa graft bulbar urethroplasty is a viable technique: results compared to buccal mucosa graft urethroplasty after propensity score matching. World J Urol 2024; 42:123. [PMID: 38453722 DOI: 10.1007/s00345-024-04795-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 01/16/2024] [Indexed: 03/09/2024] Open
Abstract
PURPOSE Small intestinal submucosa (SIS) graft urethroplasty has been employed to decrease buccal mucosa morbidity and facilitate the procedure. The first published series had a short follow-up, inhomogeneous patient selection, and a lack of a control group. Our purpose is to report treatment outcomes at 13 years in a propensity score-matched cohort comparing bulbar urethroplasty with SIS (SISU) or buccal mucosa (BMU). METHODS From our institutional database of 1132 bulbar urethroplasties, we used propensity score matching with the nearest-neighbor method without replacement to generate a study sample of 25 BMU and 25 SISU. Failure was defined as any treatment after urethroplasty. Survival analyses were used to analyze treatment failure occurrence with data censored at 156mo. RESULTS Matching resulted in a complete correction of bias between the two samples except for the follow-up duration, which was slightly longer in the SIS group. The cumulative treatment success probability of BMU and SISU at 156mo was 83.4% and 68%, respectively. At multivariable Cox regression, SIS graft, previous urethrotomy, stricture length, and lower postoperative Qmax (within 2mo after catheter removal) were predictors of failure. Stricture length had a more remarkable effect in SISU, with estimated survival probabilities from the Cox model lower than 80% in strictures > = 3 cm. CONCLUSION SIS has poorer outcomes compared to BM but may still be useful when BM grafting is not possible. The best candidates for SISU, with similar success to BMU, are patients with strictures shorter than 3 cm, preferably without a history of DVIU.
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Affiliation(s)
- Enzo Palminteri
- Center for Urethral and Genitalia Reconstructive Surgery, Humanitas Cellini, Via Benvenuto Cellini 5, 10126, Turin, Italy
| | - Stefano Toso
- Department of Urology, University of Modena and Reggio Emilia, Via Università 4, 41121, Modena, Italy
| | - Mirko Preto
- Urology Clinic-A.O.U. "Città della Salute e della Scienza"-Molinette Hospital, University of Turin, Corso Bramante 88/90, 10126, Turin, Italy
| | - Lorenzo Gatti
- CURE Group, Department of Urology, Hesperia Hospital, Via Arguà 80, 41125, Modena, Italy
| | - Omid Sedigh
- Department of Urology and Reconstructive Andrology, Humanitas Gradenigo, Corso Regina Margherita 8, 10153, Turin, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
| | - Nicolò Maria Buffi
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
- Department of Urology, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy
| | - Giovanni Ferrari
- CURE Group, Department of Urology, Hesperia Hospital, Via Arguà 80, 41125, Modena, Italy
| | - Andrea Gobbo
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy.
- Department of Urology, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy.
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Minore A, Morselli S, Franzoso F, Maruzzi D, Varvello F, Toso S, Ferrari G, Siena G, Conti E, Papalia R, Uricchio F, Balsamo R, Scarpa RM, Cindolo L. Is water vapor thermal therapy safe and feasible in elderly and frail men? The Italian experience. World J Urol 2024; 42:60. [PMID: 38280069 DOI: 10.1007/s00345-023-04762-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 12/12/2023] [Indexed: 01/29/2024] Open
Abstract
PURPOSE In recent years, water vapor thermal therapy (WVTT) has spread as minimally invasive technique in lower urinary tract symptoms due to benign prostatic hyperplasia treatment. Even if its safety and feasibility have been largely proved in young men, nobody has proved the same feasibility and safety in the elderly (men older than 75 years old). Our aim is to compare WVTT safety outcomes in men older than 75 with younger men. METHODS We prospectively collected data on men who underwent water vapor thermal therapy from 2019. We compared data on operative time, number of injections, intra-operative and post-operative complications, reinterventions rate. RESULTS We enrolled 426 patients; among these, 60 were older than 75 years old, 366 were younger. Our cohorts of patients had similar results in terms of intra-operative and post-operative complications. Operative time accounts about 11 min for both groups (p = 0.535), total number of injections was seven for young men and eight for elderly (p = 0.314). We found no intra-operative complications in elderly men group and only one in the younger group (p = 0.678), while five younger men underwent clot retention, and two elderly men experienced this complication (p = 0.239). Only one transfusion occurred in the elderly group. No differences between groups occurred in terms of length of stay, post-operative urinary retention and reintervention rate, while catheterization time was longer in the elderly men. CONCLUSION WVTT is a safe procedure in elderly patients with comparable intra-operative and post-operative complication rate in comparison with younger patients.
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Affiliation(s)
- Antonio Minore
- Department of Urology, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Simone Morselli
- Department of Urology, "Hesperia Hospital", and CURE Group, Modena, Italy
| | | | - Daniele Maruzzi
- Department of Urology, S. Maria Degli Angeli Hospital, Pordenone, Italy
| | - Francesco Varvello
- Department of Urology, Michele e Pietro Ferrero Hospital, Alba-Bra, Italy
| | - Stefano Toso
- Department of Urology, "Hesperia Hospital", and CURE Group, Modena, Italy
| | - Giovanni Ferrari
- Department of Urology, "Hesperia Hospital", and CURE Group, Modena, Italy
| | - Giampaolo Siena
- Department of Urology, Careggi Hospital, University of Florence, San Luca Nuovo, Florence, Italy
| | - Enrico Conti
- Department of Urology, Levante Ligure Hospital, La Spezia, Italy
| | - Rocco Papalia
- Department of Urology, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Francesco Uricchio
- Department of Urology, AORN Ospedali dei Colli-Monaldi Hospital, Naples, Italy
| | - Raffaele Balsamo
- Department of Urology, AORN Ospedali dei Colli-Monaldi Hospital, Naples, Italy
| | | | - Luca Cindolo
- Department of Urology, "Hesperia Hospital", and CURE Group, Modena, Italy.
- Department of Urology, "Villa Stuart" Private Hospital, Rome, Italy.
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Livakas N, Toso S, Ivanov YP, Das T, Chakraborty S, Divitini G, Manna L. CsPbCl 3 → CsPbI 3 Exchange in Perovskite Nanocrystals Proceeds through a Jump-the-Gap Reaction Mechanism. J Am Chem Soc 2023; 145:20442-20450. [PMID: 37691231 PMCID: PMC10515632 DOI: 10.1021/jacs.3c06214] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Indexed: 09/12/2023]
Abstract
Halide exchange is a popular strategy to tune the properties of CsPbX3 nanocrystals after synthesis. However, while Cl → Br and Br → I exchanges proceed through the formation of stable mixed-halide nanocrystals, the Cl ⇌ I exchange is more elusive. Indeed, the large size difference between chloride and iodide ions causes a miscibility gap in the CsPbCl3-CsPbI3 system, preventing the isolation of stable CsPb(ClxI1-x)3 nanocrystals. Yet, previous works have claimed that a full CsPbCl3 → CsPbI3 exchange can be achieved. Even more interestingly, interrupting the exchange prematurely yields a mixture of CsPbCl3 and CsPbI3 nanocrystals that coexist without undergoing further transformation. Here, we investigate the reaction mechanism of CsPbCl3 → CsPbI3 exchange in nanocrystals. We show that the reaction proceeds through the early formation of iodide-doped CsPbCl3 nanocrystals covered by a monolayer shell of CsI. These nanocrystals then leap over the miscibility gap between CsPbCl3 and CsPbI3 by briefly transitioning to short-lived and nonrecoverable CsPb(ClxI1-x)3 nanocrystals, which quickly expel the excess chloride and turn into the chloride-doped CsPbI3 nanocrystals found in the final product.
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Affiliation(s)
- Nikolaos Livakas
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento
di Chimica e Chimica Industriale, Università
di Genova, 16146 Genova, Italy
| | - Stefano Toso
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Yurii P. Ivanov
- Electron
Spectroscopy and Nanoscopy, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Tisita Das
- Materials
Theory for Energy Scavenging (MATES) Lab, Department of Physics, Harish-Chandra Research Institute (HRI), A CI of Homi
Bhabha National Institute (HBNI), Chhatnag Road, Jhunsi, Prayagraj 211019, India
| | - Sudip Chakraborty
- Materials
Theory for Energy Scavenging (MATES) Lab, Department of Physics, Harish-Chandra Research Institute (HRI), A CI of Homi
Bhabha National Institute (HBNI), Chhatnag Road, Jhunsi, Prayagraj 211019, India
| | - Giorgio Divitini
- Electron
Spectroscopy and Nanoscopy, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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Guccione P, Diacono D, Toso S, Caliandro R. Towards the extraction of the crystal cell parameters from pair distribution function profiles. IUCrJ 2023; 10:610-623. [PMID: 37668218 PMCID: PMC10478520 DOI: 10.1107/s2052252523006887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 08/04/2023] [Indexed: 09/06/2023]
Abstract
The approach based on atomic pair distribution function (PDF) has revolutionized structural investigations by X-ray/electron diffraction of nano or quasi-amorphous materials, opening up the possibility of exploring short-range order. However, the ab initio crystal structural solution by the PDF is far from being achieved due to the difficulty in determining the crystallographic properties of the unit cell. A method for estimating the crystal cell parameters directly from a PDF profile is presented, which is composed of two steps: first, the type of crystal cell is inferred using machine-learning approaches applied to the PDF profile; second, the crystal cell parameters are extracted by means of multivariate analysis combined with vector superposition techniques. The procedure has been validated on a large number of PDF profiles calculated from known crystal structures and on a small number of measured PDF profiles. The lattice determination step has been benchmarked by a comprehensive exploration of different classifiers and different input data. The highest performance is obtained using the k-nearest neighbours classifier applied to whole PDF profiles. Descriptors calculated from the PDF profiles by recurrence quantitative analysis produce results that can be interpreted in terms of PDF properties, and the significance of each descriptor in determining the prediction is evaluated. The cell parameter extraction step depends on the cell metric rather than its type. Monometric, dimetric and trimetric cells have top-1 estimates that are correct 40, 20 and 5% of the time, respectively. Promising results were obtained when analysing real nanocrystals, where unit cells close to the true ones are found within the top-1 ranked solution in the case of monometric cells and within the top-6 ranked solutions in the case of dimetric cells, even in the presence of a crystalline impurity with a weight fraction up to 40%.
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Affiliation(s)
- Pietro Guccione
- Dipartimento di Ingegneria Elettrica e dell’Informazione, Politecnico di Bari, via Orabona 4, Bari 70125, Italy
| | | | - Stefano Toso
- Italian Institute of Technology, via Morego 30, Genoa 16163, Italy
| | - Rocco Caliandro
- Institute of Crystallography, National Research Council of Italy, via Amendola 122/o, Bari 70126, Italy
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6
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Mulder J, Jenkinson K, Toso S, Prato M, Evers WH, Bals S, Manna L, Houtepen AJ. Nucleation and Growth of Bipyramidal Yb:LiYF 4 Nanocrystals-Growing Up in a Hot Environment. Chem Mater 2023; 35:5311-5321. [PMID: 37528840 PMCID: PMC10389792 DOI: 10.1021/acs.chemmater.3c00502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/23/2023] [Indexed: 08/03/2023]
Abstract
Lanthanide-doped LiYF4 (Ln:YLF) is commonly used for a broad variety of optical applications, such as lasing, photon upconversion and optical refrigeration. When synthesized as nanocrystals (NCs), this material is also of interest for biological applications and fundamental physical studies. Until now, it was unclear how Ln:YLF NCs grow from their ionic precursors into tetragonal NCs with a well-defined, bipyramidal shape and uniform dopant distribution. Here, we study the nucleation and growth of ytterbium-doped LiYF4 (Yb:YLF), as a template for general Ln:YLF NC syntheses. We show that the formation of bipyramidal Yb:YLF NCs is a multistep process starting with the formation of amorphous Yb:YLF spheres. Over time, these spheres grow via Ostwald ripening and crystallize, resulting in bipyramidal Yb:YLF NCs. We further show that prolonged heating of the NCs results in the degradation of the NCs, observed by the presence of large LiF cubes and small, irregular Yb:YLF NCs. Due to the similarity in chemical nature of all lanthanide ions our work sheds light on the formation stages of Ln:YLF NCs in general.
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Affiliation(s)
- Jence
T. Mulder
- Optoelectronic
Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629HZ Delft, The
Netherlands
| | - Kellie Jenkinson
- Electron
Microscopy for Materials Science (EMAT), Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Stefano Toso
- Department
of Nanochemistry, Istituto Italiano di Tecnologia
(IIT), Via Morego 30, 16163 Genova, Italy
| | - Mirko Prato
- Materials
Characterization Facility, Istituto Italiano
di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy
| | - Wiel H. Evers
- Optoelectronic
Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629HZ Delft, The
Netherlands
- Department
of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, van der Maasweg 9, 2629HZ Delft, The
Netherlands
| | - Sara Bals
- Electron
Microscopy for Materials Science (EMAT), Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Liberato Manna
- Department
of Nanochemistry, Istituto Italiano di Tecnologia
(IIT), Via Morego 30, 16163 Genova, Italy
| | - Arjan J. Houtepen
- Optoelectronic
Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629HZ Delft, The
Netherlands
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Puliatti S, Toso S, Ticonosco M, Rabito S, Sighinolfi MC, Ferrari R, Rochira V, Santi D, Trenti T, Navarra M, Ferretti S, Montano L, Micali S. Semen Analysis in "Urology-Naïve" Patients: A Chance of Uroandrological Screening in Young Males. J Clin Med 2023; 12:jcm12113803. [PMID: 37298000 DOI: 10.3390/jcm12113803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/11/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
(1) Background: While females start their gynecological examinations during puberty, only few men decide to be visited by urologists in their youth. Given the participation in the EcoFoodFertility research project, our department had the opportunity to screen young males that were supposedly healthy. (2) Results: from January 2019 to July 2020, we evaluated 157 patients with sperm, blood analysis, and uroandrological examinations. The inclusion criteria were age 18-40 and absence of previous urological disease (urology-naïve). The primary endpoint of the study was to record uroandrological diseases that are occasionally discovered during examination in asymptomatic young men. The average age was 26.9 years (range 18-40); average testicular volume was 15.7 mL (range 12-22 mL); and 45.2% reported abnormal semen analysis: 62 cases of teratozoospermia, 27 asthenozoospermia, 18 oligozoospermia, and 2 azoospermia were discovered respectively; 4/157 patients were diagnosed with hypogonadism; 2 cases with suspicious testicular mass resulted in testicular cancer; and 31 suspected varicoceles and 8 patients with mild sexual dysfunctions were managed. (3) Conclusions: an uroandrological evaluation of young asymptomatic males allowed for the prompt diagnosis of different urological conditions, including cancerous ones, in our series. Despite being debatable, combining urological counselling with physical examination, semen analysis, and a laboratory profile could be useful and cost-effective in order to ameliorate male health.
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Affiliation(s)
- Stefano Puliatti
- Department of Urology, University of Modena e Reggio Emilia, 41125 Modena, Italy
| | - Stefano Toso
- Department of Urology, University of Modena e Reggio Emilia, 41125 Modena, Italy
| | - Marco Ticonosco
- Department of Urology, University of Modena e Reggio Emilia, 41125 Modena, Italy
| | - Salvatore Rabito
- Department of Urology, University of Modena e Reggio Emilia, 41125 Modena, Italy
| | | | - Riccardo Ferrari
- Department of Urology, University of Modena e Reggio Emilia, 41125 Modena, Italy
| | - Vincenzo Rochira
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, 41121 Modena, Italy
| | - Daniele Santi
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, 41121 Modena, Italy
| | - Tommaso Trenti
- Toxicology and Advanced Diagnostics, Ospedale S. Agostino-Estense, 41126 Modena, Italy
| | - Michele Navarra
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Stefania Ferretti
- Department of Urology, University of Modena e Reggio Emilia, 41125 Modena, Italy
| | - Luigi Montano
- Andrology Unit and Service of Lifestyle Medicine in Uroandrology, Local Health Authority (ASL) Salerno, Coordination Unit of the Network for Environmental and Reproductive Health (EcoFoodFertility Project), Oliveto Citra Hospital, 84124 Salerno, Italy
- PhD Program in Evolutionary Biology and Ecology, University of Rome "Tor Vergata", 00133 Rome, Italy
| | - Salvatore Micali
- Department of Urology, University of Modena e Reggio Emilia, 41125 Modena, Italy
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8
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Ding Y, Zhang Z, Toso S, Gushchina I, Trepalin V, Shi K, Peng JW, Kuno M. Mixed Ligand Passivation as the Origin of Near-Unity Emission Quantum Yields in CsPbBr 3 Nanocrystals. J Am Chem Soc 2023; 145:6362-6370. [PMID: 36881007 DOI: 10.1021/jacs.2c13527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Key features of syntheses, involving the quaternary ammonium passivation of CsPbBr3 nanocrystals (NCs), include stable, reproducible, and large (often near-unity) emission quantum yields (QYs). The archetypical example involves didodecyl dimethyl ammonium (DDDMA+)-passivated CsPbBr3 NCs where robust QYs stem from interactions between DDDMA+ and NC surfaces. Despite widespread adoption of this synthesis, specific ligand-NC surface interactions responsible for large DDDMA+-passivated NC QYs have not been fully established. Multidimensional nuclear magnetic resonance experiments now reveal a new DDDMA+-NC surface interaction, beyond established "tightly bound" DDDMA+ interactions, which strongly affects observed emission QYs. Depending upon the existence of this new DDDMA+ coordination, NC QYs vary broadly between 60 and 85%. More importantly, these measurements reveal surface passivation through unexpected didodecyl ammonium (DDA+) that works in concert with DDDMA+ to produce near-unity (i.e., >90%) QYs.
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Affiliation(s)
- Yang Ding
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Zhuoming Zhang
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Stefano Toso
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Nanochemistry Department, Instituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Irina Gushchina
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Vadim Trepalin
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Kejia Shi
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Jeffrey W Peng
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Masaru Kuno
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, United States
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9
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Cindolo L, Morselli S, Campobasso D, Conti E, Sebastiani G, Franzoso F, Galluccio G, Maruzzi D, Visalli F, Varvello F, Lucci Chiarissi M, Viola L, Sessa F, Toso S, Micali S, Ferrari G, Siena G. One-year outcomes after water vapor thermal therapy for symptomatic benign prostatic hyperplasia in an unselected Italian multicenter cohort. Minerva Urol Nephrol 2023; 75:203-209. [PMID: 36656128 DOI: 10.23736/s2724-6051.22.05080-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND Water vapor therapy (Rezum®; Boston Scientific, Marlborough, MA, USA) for bladder outflow obstruction (BOO) due to benign prostatic enlargement (BPE) is a minimally invasive and innovative surgical technique. The aim of this study was to evaluate its mid-term results in a large multicentric cohort of Italian patients. METHODS Patients with BPO and moderate to severe LUTS who underwent Rezum® (Boston Scientific) treatment from May 2019 to July 2021 were included in this study. Pre- and postoperative evaluation comprised full urological evaluation with urine culture, digital rectal examination, serum PSA, transrectal prostate ultrasound, uroflowmetry, post-void residual and IPSS, OAB-q SF, ICIQ-UI SF and IIEF-5, ejaculatory anterograde rate. Minimum follow-up was 12 months. Patients' subjective satisfaction was recorded with Patient Global Impression of Improvement (PGI-I) Scale together with any early or late reported complications, classified according to Clavien-Dindo Scale. Statistical analysis was conducted as appropriate. RESULTS Overall, 352 patients were eligible for the analysis. Procedures were routinely done on an outpatient basis. Mean operative was 12 minutes. The catheter was left in place for a median of 7 days. After treatment, Q<inf>max</inf>, IPSS and IPSS-QoL, OAB-q SF, ICIQ-UI SF and IIEF-5 from baseline to last control follow-up (median 16, IQR 13-20 months) were improved (P<0.05). The postoperative anterograde ejaculation rate was recorded in 74.1% vs. preoperative 43.8% (P<0.001). Early (≤30 days) postoperative complications occurred in 176 patients (50%), all Clavien-Dindo Grade ≤2. One patient experienced clot retention and hematuria requiring hospitalization and blood transfusion. No late AEs were recorded. Surgical retreatment rate was 2.5% (9/352), all cases occurred within the first year. Median PGI-I was 2 (1-2). CONCLUSIONS We confirmed the safety and efficacy of water vapor therapy for the treatment of symptomatic benign prostatic obstruction (BPO) on a large cohort of patients. Anterograde ejaculation was preserved in the majority of patients, with good subjective improvement. Further studies may rule out possible role of Rezum® (Boston Scientific) in new patients' setting.
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Affiliation(s)
- Luca Cindolo
- Department of Urology, Villa Stuart Private Hospital, Rome, Italy.,Department of Urology, Hesperia Hospital, Modena, Italy
| | - Simone Morselli
- Department of Urology, Hesperia Hospital, Modena, Italy - .,Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | | | - Enrico Conti
- Department of Urology, Levante Ligure Hospital, La Spezia, Italy
| | | | | | | | - Daniele Maruzzi
- Department of Urology, Santa Maria Degli Angeli Hospital, Pordenone, Italy
| | - Francesco Visalli
- Department of Urology, Santa Maria Degli Angeli Hospital, Pordenone, Italy
| | - Francesco Varvello
- Department of Urology, Michele e Pietro Ferrero Hospital, Alba, Cuneo, Italy
| | | | - Lorenzo Viola
- Department of Urology, San Luca Nuovo, Careggi Hospital, University of Florence, Florence, Italy
| | - Francesco Sessa
- Department of Urology, San Luca Nuovo, Careggi Hospital, University of Florence, Florence, Italy
| | - Stefano Toso
- Department of Urology, Hesperia Hospital, Modena, Italy.,Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Salvatore Micali
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Giampaolo Siena
- Department of Urology, San Luca Nuovo, Careggi Hospital, University of Florence, Florence, Italy
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10
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Toso S, Baranov D, Filippi U, Giannini C, Manna L. Collective Diffraction Effects in Perovskite Nanocrystal Superlattices. Acc Chem Res 2023; 56:66-76. [PMID: 36534898 DOI: 10.1021/acs.accounts.2c00613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
ConspectusFor almost a decade now, lead halide perovskite nanocrystals have been the subject of a steadily growing number of publications, most of them regarding CsPbBr3 nanocubes. Many of these works report X-ray diffraction patterns where the first Bragg peak has an unusual shape, as if it was composed of two or more overlapping peaks. However, these peaks are too narrow to stem from a nanoparticle, and the perovskite crystal structure does not account for their formation. What is the origin of such an unusual profile, and why has it been overlooked so far? Our attempts to answer these questions led us to revisit an intriguing collective diffraction phenomenon, known for multilayer epitaxial thin films but not reported for colloidal nanocrystals before. By analogy, we call it the multilayer diffraction effect.Multilayer diffraction can be observed when a diffraction experiment is performed on nanocrystals packed with a periodic arrangement. Owing to the periodicity of the packing, the X-rays scattered by each particle interfere with those diffracted by its neighbors, creating fringes of constructive interference. Since the interfering radiation comes from nanoparticles, fringes are visible only where the particles themselves produce a signal in their diffraction pattern: for nanocrystals, this means at their Bragg peaks. Being a collective interference phenomenon, multilayer diffraction is strongly affected by the degree of order in the nanocrystal aggregate. For it to be observed, the majority of nanocrystals within the sample must abide to the stacking periodicity with minimal misplacements, a condition that is typically satisfied in self-assembled nanocrystal superlattices or stacks of colloidal nanoplatelets.A qualitative understanding of multilayer diffraction might explain why the first Bragg peak of CsPbBr3 nanocubes sometimes appears split, but leaves many other questions unanswered. For example, why is the split observed only at the first Bragg peak but not at the second? Why is it observed routinely in a variety of CsPbBr3 nanocrystals samples and not just in highly ordered superlattices? How does the morphology of particles (i.e., nanocrystals vs nanoplatelets) affect the appearance of multilayer diffraction effects? Finally, why is multilayer diffraction not observed in other popular nanocrystals such as Au and CdSe, despite the extensive investigations of their superlattices?Answering these questions requires a deeper understanding of multilayer diffraction. In what follows, we summarize our progress in rationalizing the origin of this phenomenon, at first through empirical observation and then by adapting the diffraction theory developed in the past for multilayer thin films, until we achieved a quantitative fitting of experimental diffraction patterns over extended angular ranges. By introducing the reader to the key advancements in our research, we provide answers to the questions above, we discuss what information can be extracted from patterns exhibiting collective interference effects, and we show how multilayer diffraction can provide insights into colloidal nanomaterials where other techniques struggle. Finally, with the help of literature patterns showing multilayer diffraction and simulations performed by us, we demonstrate that this collective diffraction effect is within reach for many appealing nanomaterials other than halide perovskites.
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Affiliation(s)
- Stefano Toso
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.,International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Dmitry Baranov
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Umberto Filippi
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.,International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Cinzia Giannini
- Istituto Di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), I-70126 Bari, Italy
| | - Liberato Manna
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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11
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Toso S, Gushchina I, Oliver AG, Manna L, Kuno M. Are Mixed-Halide Ruddlesden-Popper Perovskites Really Mixed? ACS Energy Lett 2022; 7:4242-4247. [PMID: 36531145 PMCID: PMC9748757 DOI: 10.1021/acsenergylett.2c01967] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/24/2022] [Indexed: 06/17/2023]
Abstract
Mixing bromine and iodine within lead halide perovskites is a common strategy to tune their optical properties. This comes at the cost of instability, as illumination induces halide segregation and degrades device performances. Hence, understanding the behavior of mixed-halide perovskites is crucial for applications. In 3D perovskites such as MAPb(Br x I1-x )3 (MA = methylammonium), all of the halide crystallographic sites are similar, and the consensus is that bromine and iodine are homogeneously distributed prior to illumination. By analogy, it is often assumed that Ruddlesden-Popper layered perovskites such as (BA)2MAPb2(Br x I1-x )7 (BA = butylammonium) behave alike. However, these materials possess a much wider variety of halide sites featuring diverse coordination environments, which might be preferentially occupied by either bromine or iodine. This leaves an open question: are mixed-halide Ruddlesden-Popper perovskites really mixed? By combining powder and single-crystal diffraction experiments, we demonstrate that this is not the case: bromine and iodine in RP perovskites preferentially occupy different sites, regardless of the crystallization speed.
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Affiliation(s)
- Stefano Toso
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre
Dame, Indiana46556, United States
- International
Doctoral Program in Science, Università
Cattolica del Sacro Cuore, 25121Brescia, Italy
- Department
of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163Genova, Italy
| | - Irina Gushchina
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre
Dame, Indiana46556, United States
| | - Allen G. Oliver
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre
Dame, Indiana46556, United States
| | - Liberato Manna
- Department
of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163Genova, Italy
| | - Masaru Kuno
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre
Dame, Indiana46556, United States
- Department
of Physics, University of Notre Dame, Notre Dame, Indiana46556, United States
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12
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Liu Y, Zaffalon ML, Zito J, Cova F, Moro F, Fanciulli M, Zhu D, Toso S, Xia Z, Infante I, De Trizio L, Brovelli S, Manna L. Cu + → Mn 2+ Energy Transfer in Cu, Mn Coalloyed Cs 3ZnCl 5 Colloidal Nanocrystals. Chem Mater 2022; 34:8603-8612. [PMID: 36248232 PMCID: PMC9558458 DOI: 10.1021/acs.chemmater.2c01578] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 09/03/2022] [Indexed: 05/05/2023]
Abstract
In this work, we report the hot-injection synthesis of Cs3ZnCl5 colloidal nanocrystals (NCs) with tunable amounts of Cu+ and Mn2+ substituent cations. All the samples had a rodlike morphology, with a diameter of ∼14 nm and a length of ∼30-100 nm. Alloying did not alter the crystal structure of the host Cs3ZnCl5 NCs, and Cu ions were mainly introduced in the oxidation state +1 according to X-ray photoelectron and electron paramagnetic resonance spectroscopies. The spectroscopic analysis of unalloyed, Cu-alloyed, Mn-alloyed, and Cu, Mn coalloyed NCs indicated that (i) the Cs3ZnCl5 NCs have a large band gap of ∼5.35 eV; (ii) Cu(I) aliovalent alloying leads to an absorption shoulder/peak at ∼4.8 eV and cyan photoluminescence (PL) peaked at 2.50 eV; (iii) Mn(II) isovalent alloying leads to weak Mn PL, which intensifies remarkably in the coalloyed samples, prompted by an energy transfer (ET) process between the Cu and Mn centers, favored by the overlap between the lowest (6A1 → 4T1) transition for tetrahedrally coordinated Mn2+ and the PL profile from Cu(I) species in the Cs3ZnCl5 NCs. The efficiency of this ET process reaches a value of 61% for the sample with the highest extent of Mn alloying. The PL quantum yield (QY) values in these Cu, Mn coalloyed NCs are lower at higher Mn contents. The analysis of the Mn PL dynamics in these samples indicates that this PL drop stems from inter-Mn exciton migration, which increases the likelihood of trapping in defect sites, in agreement with previous studies.
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Affiliation(s)
- Ying Liu
- Key
Laboratory of Materials Physics of Ministry of Education, School of
Physics and Microelectronics, Zhengzhou
University, Daxue Road 75, Zhengzhou 450052, China
- Nanochemistry, Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy
| | - Matteo L. Zaffalon
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano-Bicocca, via R. Cozzi 55, Milano 20125, Italy
| | - Juliette Zito
- Nanochemistry, Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy
- Dipartimento
di Chimica e Chimica Industrial, Università
degli Studi di Genova, Via Dodecaneso 31, Genova 16146, Italy
| | - Francesca Cova
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano-Bicocca, via R. Cozzi 55, Milano 20125, Italy
| | - Fabrizio Moro
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano-Bicocca, via R. Cozzi 55, Milano 20125, Italy
| | - Marco Fanciulli
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano-Bicocca, via R. Cozzi 55, Milano 20125, Italy
| | - Dongxu Zhu
- Nanochemistry, Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy
| | - Stefano Toso
- Nanochemistry, Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy
- International
Doctoral Program in Science, Università
Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Zhiguo Xia
- The
State Key Laboratory of Luminescent Materials and Devices, Guangdong
Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques,
School of Physics and Optoelectronics, South
China University of Technology, Guangzhou 510641, P. R.
China
| | - Ivan Infante
- Nanochemistry, Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy
| | - Luca De Trizio
- Nanochemistry, Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy
| | - Sergio Brovelli
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano-Bicocca, via R. Cozzi 55, Milano 20125, Italy
| | - Liberato Manna
- Nanochemistry, Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy
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13
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Toso S, Imran M, Mugnaioli E, Moliterni A, Caliandro R, Schrenker NJ, Pianetti A, Zito J, Zaccaria F, Wu Y, Gemmi M, Giannini C, Brovelli S, Infante I, Bals S, Manna L. Halide perovskites as disposable epitaxial templates for the phase-selective synthesis of lead sulfochloride nanocrystals. Nat Commun 2022; 13:3976. [PMID: 35803933 PMCID: PMC9270429 DOI: 10.1038/s41467-022-31699-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 06/29/2022] [Indexed: 11/11/2022] Open
Abstract
Colloidal chemistry grants access to a wealth of materials through simple and mild reactions. However, even few elements can combine in a variety of stoichiometries and structures, potentially resulting in impurities or even wrong products. Similar issues have been long addressed in organic chemistry by using reaction-directing groups, that are added to a substrate to promote a specific product and are later removed. Inspired by such approach, we demonstrate the use of CsPbCl3 perovskite nanocrystals to drive the phase-selective synthesis of two yet unexplored lead sulfochlorides: Pb3S2Cl2 and Pb4S3Cl2. When homogeneously nucleated in solution, lead sulfochlorides form Pb3S2Cl2 nanocrystals. Conversely, the presence of CsPbCl3 triggers the formation of Pb4S3Cl2/CsPbCl3 epitaxial heterostructures. The phase selectivity is guaranteed by the continuity of the cationic subnetwork across the interface, a condition not met in a hypothetical Pb3S2Cl2/CsPbCl3 heterostructure. The perovskite domain is then etched, delivering phase-pure Pb4S3Cl2 nanocrystals that could not be synthesized directly. Phase-selective approaches, such using reaction-directing groups, are often seen in traditional organic chemistry and catalysis. Here authors use perovskite nanocrystals as disposable templates to drive the phase-selective synthesis of two colloidal nanomaterials, the lead sulfohalides Pb3S2Cl2 and Pb4S3Cl2.
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Affiliation(s)
- Stefano Toso
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.,International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121, Brescia, Italy
| | - Muhammad Imran
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.
| | - Enrico Mugnaioli
- Electron Crystallography, Center for Materials Interfaces, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025, Pontedera, Italy
| | - Anna Moliterni
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Giovanni Amendola 122/O, 70126, Bari, Italy.
| | - Rocco Caliandro
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Giovanni Amendola 122/O, 70126, Bari, Italy
| | - Nadine J Schrenker
- Electron Microscopy for Materials Science (EMAT) and NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Andrea Pianetti
- Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, Via Roberto Cozzi 55, 20125, Milano, Italy
| | - Juliette Zito
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.,Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146, Genova, Italy
| | - Francesco Zaccaria
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Ye Wu
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Mauro Gemmi
- Electron Crystallography, Center for Materials Interfaces, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025, Pontedera, Italy.
| | - Cinzia Giannini
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Giovanni Amendola 122/O, 70126, Bari, Italy
| | - Sergio Brovelli
- Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, Via Roberto Cozzi 55, 20125, Milano, Italy.
| | - Ivan Infante
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.
| | - Sara Bals
- Electron Microscopy for Materials Science (EMAT) and NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.
| | - Liberato Manna
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.
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14
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Quarta D, Toso S, Giannuzzi R, Caliandro R, Moliterni A, Saleh G, Capodilupo A, Debellis D, Prato M, Nobile C, Maiorano V, Infante I, Gigli G, Giannini C, Manna L, Giansante C. Colloidal Bismuth Chalcohalide Nanocrystals. Angew Chem Int Ed Engl 2022; 61:e202201747. [PMID: 35226780 PMCID: PMC9311208 DOI: 10.1002/anie.202201747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Indexed: 11/11/2022]
Abstract
Here we present a colloidal approach to synthesize bismuth chalcohalide nanocrystals (BiEX NCs, in which E=S, Se and X=Cl, Br, I). Our method yields orthorhombic elongated BiEX NCs, with BiSCl crystallizing in a previously unknown polymorph. The BiEX NCs display a composition‐dependent band gap spanning the visible spectral range and absorption coefficients exceeding 105 cm−1. The BiEX NCs show chemical stability at standard laboratory conditions and form colloidal inks in different solvents. These features enable the solution processing of the NCs into robust solid films yielding stable photoelectrochemical current densities under solar‐simulated irradiation. Overall, our versatile synthetic protocol may prove valuable in accessing colloidal metal chalcohalide nanomaterials at large and contributes to establish metal chalcohalides as a promising complement to metal chalcogenides and halides for applied nanotechnology.
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Affiliation(s)
- Danila Quarta
- Consiglio Nazionale delle RicercheIstituto di Nanotecnologia, CNR NANOTECVia Monteroni73100LecceItaly
- Dipartimento di Matematica e Fisica ‘Ennio De Giorgi', Università del SalentoVia per Arnesano73100LecceItaly
| | - Stefano Toso
- Istituto Italiano di Tecnologia, IITVia Morego 3016163GenovaItaly
- International Doctoral Program in ScienceUniversità Cattolica del Sacro Cuore25121BresciaItaly
| | - Roberto Giannuzzi
- Consiglio Nazionale delle RicercheIstituto di Nanotecnologia, CNR NANOTECVia Monteroni73100LecceItaly
- Dipartimento di Matematica e Fisica ‘Ennio De Giorgi', Università del SalentoVia per Arnesano73100LecceItaly
| | - Rocco Caliandro
- Consiglio Nazionale delle RicercheIstituto di Cristallografia, CNR ICVia Amendola 122/O70126BariItaly
| | - Anna Moliterni
- Consiglio Nazionale delle RicercheIstituto di Cristallografia, CNR ICVia Amendola 122/O70126BariItaly
| | - Gabriele Saleh
- ITMO UniversitySCAMT Institute9 Lomonosova str.191002Saint PetersburgRussian Federation
| | - Agostina‐Lina Capodilupo
- Consiglio Nazionale delle RicercheIstituto di Nanotecnologia, CNR NANOTECVia Monteroni73100LecceItaly
| | - Doriana Debellis
- Istituto Italiano di Tecnologia, IITVia Morego 3016163GenovaItaly
| | - Mirko Prato
- Istituto Italiano di Tecnologia, IITVia Morego 3016163GenovaItaly
| | - Concetta Nobile
- Consiglio Nazionale delle RicercheIstituto di Nanotecnologia, CNR NANOTECVia Monteroni73100LecceItaly
| | - Vincenzo Maiorano
- Consiglio Nazionale delle RicercheIstituto di Nanotecnologia, CNR NANOTECVia Monteroni73100LecceItaly
| | - Ivan Infante
- Istituto Italiano di Tecnologia, IITVia Morego 3016163GenovaItaly
| | - Giuseppe Gigli
- Consiglio Nazionale delle RicercheIstituto di Nanotecnologia, CNR NANOTECVia Monteroni73100LecceItaly
- Dipartimento di Matematica e Fisica ‘Ennio De Giorgi', Università del SalentoVia per Arnesano73100LecceItaly
| | - Cinzia Giannini
- Consiglio Nazionale delle RicercheIstituto di Cristallografia, CNR ICVia Amendola 122/O70126BariItaly
| | - Liberato Manna
- Istituto Italiano di Tecnologia, IITVia Morego 3016163GenovaItaly
| | - Carlo Giansante
- Consiglio Nazionale delle RicercheIstituto di Nanotecnologia, CNR NANOTECVia Monteroni73100LecceItaly
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15
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Quarta D, Toso S, Giannuzzi R, Caliandro R, Moliterni A, Saleh G, Capodilupo A, Debellis D, Prato M, Nobile C, Maiorano V, Infante I, Gigli G, Giannini C, Manna L, Giansante C. Colloidal Bismuth Chalcohalide Nanocrystals. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Danila Quarta
- Consiglio Nazionale delle Ricerche Istituto di Nanotecnologia, CNR NANOTEC Via Monteroni 73100 Lecce Italy
- Dipartimento di Matematica e Fisica ‘Ennio De Giorgi', Università del Salento Via per Arnesano 73100 Lecce Italy
| | - Stefano Toso
- Istituto Italiano di Tecnologia, IIT Via Morego 30 16163 Genova Italy
- International Doctoral Program in Science Università Cattolica del Sacro Cuore 25121 Brescia Italy
| | - Roberto Giannuzzi
- Consiglio Nazionale delle Ricerche Istituto di Nanotecnologia, CNR NANOTEC Via Monteroni 73100 Lecce Italy
- Dipartimento di Matematica e Fisica ‘Ennio De Giorgi', Università del Salento Via per Arnesano 73100 Lecce Italy
| | - Rocco Caliandro
- Consiglio Nazionale delle Ricerche Istituto di Cristallografia, CNR IC Via Amendola 122/O 70126 Bari Italy
| | - Anna Moliterni
- Consiglio Nazionale delle Ricerche Istituto di Cristallografia, CNR IC Via Amendola 122/O 70126 Bari Italy
| | - Gabriele Saleh
- ITMO University SCAMT Institute 9 Lomonosova str. 191002 Saint Petersburg Russian Federation
| | - Agostina‐Lina Capodilupo
- Consiglio Nazionale delle Ricerche Istituto di Nanotecnologia, CNR NANOTEC Via Monteroni 73100 Lecce Italy
| | - Doriana Debellis
- Istituto Italiano di Tecnologia, IIT Via Morego 30 16163 Genova Italy
| | - Mirko Prato
- Istituto Italiano di Tecnologia, IIT Via Morego 30 16163 Genova Italy
| | - Concetta Nobile
- Consiglio Nazionale delle Ricerche Istituto di Nanotecnologia, CNR NANOTEC Via Monteroni 73100 Lecce Italy
| | - Vincenzo Maiorano
- Consiglio Nazionale delle Ricerche Istituto di Nanotecnologia, CNR NANOTEC Via Monteroni 73100 Lecce Italy
| | - Ivan Infante
- Istituto Italiano di Tecnologia, IIT Via Morego 30 16163 Genova Italy
| | - Giuseppe Gigli
- Consiglio Nazionale delle Ricerche Istituto di Nanotecnologia, CNR NANOTEC Via Monteroni 73100 Lecce Italy
- Dipartimento di Matematica e Fisica ‘Ennio De Giorgi', Università del Salento Via per Arnesano 73100 Lecce Italy
| | - Cinzia Giannini
- Consiglio Nazionale delle Ricerche Istituto di Cristallografia, CNR IC Via Amendola 122/O 70126 Bari Italy
| | - Liberato Manna
- Istituto Italiano di Tecnologia, IIT Via Morego 30 16163 Genova Italy
| | - Carlo Giansante
- Consiglio Nazionale delle Ricerche Istituto di Nanotecnologia, CNR NANOTEC Via Monteroni 73100 Lecce Italy
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16
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Sartori E, Campolucci M, Baranov D, Zeng M, Toso S, Divitini G, Ferretti M, Hens Z, Manna L, Locardi F. Red-emissive nanocrystals of Cs 4Mn xCd 1-xSb 2Cl 12 layered perovskites. Nanoscale 2022; 14:305-311. [PMID: 34913460 DOI: 10.1039/d1nr06200j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Layered double perovskites are currently being investigated as emerging halide-based materials for optoelectronic applications. Herein, we present the synthesis of Cs4MnxCd1-xSb2Cl12 (0 ≤ x ≤ 1) nanocrystals (NCs). X-ray powder diffraction evidences the retention of the same crystal structure for all the inspected compositions; transmission electron microscopy revealed monodisperse particles with a mean size between 10.7 nm and 12.7 nm. The absorption spectra are mostly determined by transitions related to Sb3+, whereas Mn2+ induced a red emission in the 625-650 nm range. The photoluminescence emission intensity and position vary with the Mn2+ content and reach the maximum for the composition with x = 0.12. Finally, we demonstrate that the photoluminescence quantum yield of the latter NCs was increased from 0.3% to 3.9% through a post-synthesis treatment with ammonium thiocyanate. The present work expands the knowledge of colloidal layered double perovskite nanocrystals, stimulating future investigations of this emerging class of materials.
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Affiliation(s)
- Emanuela Sartori
- Department of Chemistry and Industrial Chemistry, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy.
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Italy
| | - Marta Campolucci
- Department of Chemistry and Industrial Chemistry, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy.
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Italy
| | - Dmitry Baranov
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Italy
| | - Min Zeng
- Hubei Key Laboratory of Ferro- & Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science, Hubei University, Wuhan, 430062, P. R. China
- Physics and Chemistry of Nanostructures group (PCN), Ghent University, Krijgslaan 281, Gent 9000, Belgium
| | - Stefano Toso
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Italy
- International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Giorgio Divitini
- Electron Spectroscopy and Nanoscopy, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Italy
| | - Maurizio Ferretti
- Department of Chemistry and Industrial Chemistry, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy.
| | - Zeger Hens
- Physics and Chemistry of Nanostructures group (PCN), Ghent University, Krijgslaan 281, Gent 9000, Belgium
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Italy
| | - Federico Locardi
- Department of Chemistry and Industrial Chemistry, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy.
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Italy
- Physics and Chemistry of Nanostructures group (PCN), Ghent University, Krijgslaan 281, Gent 9000, Belgium
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17
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Toso S, Baranov D, Giannini C, Manna L. Structure and Surface Passivation of Ultrathin Cesium Lead Halide Nanoplatelets Revealed by Multilayer Diffraction. ACS Nano 2021; 15:20341-20352. [PMID: 34843227 PMCID: PMC8717630 DOI: 10.1021/acsnano.1c08636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/22/2021] [Indexed: 05/05/2023]
Abstract
The research on two-dimensional colloidal semiconductors has received a boost from the emergence of ultrathin lead halide perovskite nanoplatelets. While the optical properties of these materials have been widely investigated, their accurate structural and compositional characterization is still challenging. Here, we exploited the natural tendency of the platelets to stack into highly ordered films, which can be treated as single crystals made of alternating layers of organic ligands and inorganic nanoplatelets, to investigate their structure by multilayer diffraction. Using X-ray diffraction alone, this method allowed us to reveal the structure of ∼12 Å thick Cs-Pb-Br perovskite and ∼25 Å thick Cs-Pb-I-Cl Ruddlesden-Popper nanoplatelets by precisely measuring their thickness, stoichiometry, surface passivation type and coverage, as well as deviations from the crystal structures of the corresponding bulk materials. It is noteworthy that a single, readily available experimental technique, coupled with proper modeling, provides access to such detailed structural and compositional information.
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Affiliation(s)
- Stefano Toso
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- International
Doctoral Program in Science, Università
Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Dmitry Baranov
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Cinzia Giannini
- Istituto
di Cristallografia - Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Liberato Manna
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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18
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Sarchi L, Eissa A, Puliatti S, Amato M, Assumma S, Calcagnile T, Ticonosco M, Iseppi A, Toso S, Sighinolfi MC, Bianchi G, Micali S, Rocco B. Psychological distress among patients awaiting histopathologic results after prostate biopsy: An unaddressed concern. Urologia 2021; 89:382-387. [PMID: 34612746 DOI: 10.1177/03915603211049889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Prostate cancer is the most commonly diagnosed neoplasm in men. From the introduction of PSA testing, an increasing number of men undergoes prostate biopsy (PBX). While the physical side effects of PBx have been well investigated, its psychological impact has been under-evaluated. AIM The aim of our study is to investigate the presence of psychological distress (anxiety and depression) in patients waiting for histopathological results after prostate biopsy (PBx). METHODS From February to April 2019, 51 consecutive patients undergoing prostate biopsies at our institution were included. Age, PSA, DRE, familiarity for prostate cancer, number of previous biopsies, type of anesthesia, number of cores were recorded. All patients filled the Hospital Anxiety and Depression Scale (HADS), a psychometric Likert-scale questionnaire, before receiving the histopathological results of their PBx. RESULTS The prevalence of psychological distress among patients awaiting histopathologic results is 41% (21/51 patients), with anxiety being the main component of their distress. On multivariate analysis, PSA, family history, and repeat biopsy were significantly associated with anxiety and depression. CONCLUSION Patients undergoing PBx experience a burden of psychological distress waiting for histopathologic results, especially anxiety. Appropriate counseling should be offered to patients at high risk of developing psychological distress after PBx. Future goals would include technological improvements to shorten the time between biopsy and definitive results.
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Affiliation(s)
- Luca Sarchi
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy
| | - Ahmed Eissa
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy.,Urology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Stefano Puliatti
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy.,ORSI Academy, Gent, Belgium.,Department of Urology, Onze Lieve Vrouw Hospital, Aalst, Belgium
| | - Marco Amato
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy.,ORSI Academy, Gent, Belgium.,Department of Urology, Onze Lieve Vrouw Hospital, Aalst, Belgium
| | - Simone Assumma
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy
| | | | - Marco Ticonosco
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy
| | - Andrea Iseppi
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy
| | - Stefano Toso
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy
| | | | - Giampaolo Bianchi
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy
| | - Salvatore Micali
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy
| | - Bernardo Rocco
- Urology Department, University of Modena & Reggio Emilia, Modena, Italy
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19
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Gemmi M, Mugnaioli E, Kaiukov R, Toso S, De Trizio L, Manna L. 3D electron diffraction on nanoparticles with a complex structure. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s010876732109601x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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20
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Toso S, Baranov D, Altamura D, Scattarella F, Dahl J, Wang X, Marras S, Alivisatos AP, Singer A, Giannini C, Manna L. Multilayer Diffraction Reveals That Colloidal Superlattices Approach the Structural Perfection of Single Crystals. ACS Nano 2021; 15:6243-6256. [PMID: 33481560 PMCID: PMC8155329 DOI: 10.1021/acsnano.0c08929] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/13/2021] [Indexed: 05/06/2023]
Abstract
Colloidal superlattices are fascinating materials made of ordered nanocrystals, yet they are rarely called "atomically precise". That is unsurprising, given how challenging it is to quantify the degree of structural order in these materials. However, once that order crosses a certain threshold, the constructive interference of X-rays diffracted by the nanocrystals dominates the diffraction pattern, offering a wealth of structural information. By treating nanocrystals as scattering sources forming a self-probing interferometer, we developed a multilayer diffraction method that enabled the accurate determination of the nanocrystal size, interparticle spacing, and their fluctuations for samples of self-assembled CsPbBr3 and PbS nanomaterials. The multilayer diffraction method requires only a laboratory-grade diffractometer and an open-source fitting algorithm for data analysis. The average nanocrystal displacement of 0.33 to 1.43 Å in the studied superlattices provides a figure of merit for their structural perfection and approaches the atomic displacement parameters found in traditional crystals.
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Affiliation(s)
- Stefano Toso
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- International
Doctoral Program in Science, Università
Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Dmitry Baranov
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Davide Altamura
- Istituto
di Cristallografia - Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Francesco Scattarella
- Istituto
di Cristallografia - Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Jakob Dahl
- Department
of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Xingzhi Wang
- Department
of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Sergio Marras
- Materials
Characterization Facility, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - A. Paul Alivisatos
- Department
of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Materials Science and Engineering, University
of California Berkeley, Berkeley, California 94720, United States
- Kavli
Energy NanoScience Institute, Berkeley, California 94720, United States
| | - Andrej Singer
- Department
of Materials Science and Engineering, Cornell
University, Ithaca, New York 14850, United States
| | - Cinzia Giannini
- Istituto
di Cristallografia - Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Liberato Manna
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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21
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Toso S, Baranov D, Altamura D, Scattarella F, Dahl J, Wang X, Marras S, Alivisatos AP, Singer A, Giannini C, Manna L. Multilayer Diffraction Reveals That Colloidal Superlattices Approach the Structural Perfection of Single Crystals. ACS Nano 2021; 15:6243-6256. [PMID: 33481560 DOI: 10.26434/chemrxiv.13103507.v1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Colloidal superlattices are fascinating materials made of ordered nanocrystals, yet they are rarely called "atomically precise". That is unsurprising, given how challenging it is to quantify the degree of structural order in these materials. However, once that order crosses a certain threshold, the constructive interference of X-rays diffracted by the nanocrystals dominates the diffraction pattern, offering a wealth of structural information. By treating nanocrystals as scattering sources forming a self-probing interferometer, we developed a multilayer diffraction method that enabled the accurate determination of the nanocrystal size, interparticle spacing, and their fluctuations for samples of self-assembled CsPbBr3 and PbS nanomaterials. The multilayer diffraction method requires only a laboratory-grade diffractometer and an open-source fitting algorithm for data analysis. The average nanocrystal displacement of 0.33 to 1.43 Å in the studied superlattices provides a figure of merit for their structural perfection and approaches the atomic displacement parameters found in traditional crystals.
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Affiliation(s)
- Stefano Toso
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Dmitry Baranov
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Davide Altamura
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Francesco Scattarella
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Jakob Dahl
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Xingzhi Wang
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Sergio Marras
- Materials Characterization Facility, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - A Paul Alivisatos
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California Berkeley, Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute, Berkeley, California 94720, United States
| | - Andrej Singer
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14850, United States
| | - Cinzia Giannini
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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22
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Siena G, Cindolo L, Ferrari G, Maruzzi D, Fasolis G, Condorelli SV, Varvello F, Visalli F, Rabito S, Toso S, Caroassai S, Mari A, Viola L, Somani BK, Carini M. Water vapor therapy (Rezūm) for lower urinary tract symptoms related to benign prostatic hyperplasia: early results from the first Italian multicentric study. World J Urol 2021; 39:3875-3880. [PMID: 33787986 PMCID: PMC8010783 DOI: 10.1007/s00345-021-03642-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/18/2021] [Indexed: 12/20/2022] Open
Abstract
Purpose Rezūm is the latest developed minimally invasive treatment for benign prostatic hyperplasia (BPH). We aimed to carefully assess the functional outcomes of patients treated with Rezūm for BPH. Methods We prospectively followed 135 consecutive patients treated by Rezūm at 5 institutions from June 2019 to August 2020. The International Prostate Symptom Score (IPSS), International Consultation on Incontinence Questionnaire-Short Form (ICIQ-UI SF), the Overactive Bladder Questionnaire-Short Form (OAB-q SF) score, the International Index of Erectile Function (IIEF-5) and questions 9 and 10 to assess ejaculatory dysfunction were recorded. Election criteria were age > 18, no prior prostate interventions, IPSS ≥ 13, post-void residual ≤ 250 mL, prostate volume between 30 and 120 cc. Results The median operative time was 10.5 (IQR 8.7–15) min. All patients were dismissed few hours after surgery with indwelling urinary catheter that was removed after a median of 7 (IQR 7–10) days. A significantly decrease of IPSS from baseline at first (p = 0.001) and third (p < 0.0001) month after surgery was reported. No difference was reported in terms of ICIQ-UI SF score postoperatively. A mild reduction of the OAB-q SF score was reported at 1 month from surgery (p = 0.06) that turned significant at 3 months postoperatively (p < 0.0001). A slight but statistically significant increase of the IIEF-5 score was reported from baseline at 6 months (p = 0.04). Postoperatively, patients reported a significantly decrease of ejaculatory dysfunction after alpha-blocker interruption. Conclusion Rezūm treatment is a feasible minimally invasive option for patients with BPH symptoms and showed optimal early functional outcomes.
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Affiliation(s)
- Giampaolo Siena
- Department of Urology, Careggi Hospital, University of Florence, San Luca Nuovo, Florence, Italy.
| | - L Cindolo
- Department of Urology, Villa Stuart, Private Hospital, Rome, Italy.,Department of Urology, Hesperia Hospital, Cure Group, Modena, Italy
| | - G Ferrari
- Department of Urology, Hesperia Hospital, Cure Group, Modena, Italy
| | - D Maruzzi
- Department of Urology, S. Maria Degli Angeli Hospital, Pordenone, Italy
| | - G Fasolis
- Department of Urology, Michele e Pietro Ferrero Hospital, Alba-Bra, Italy
| | - S V Condorelli
- Department of Urology, Vittorio Emanuele Hospital, Gela, Italy
| | - F Varvello
- Department of Urology, Michele e Pietro Ferrero Hospital, Alba-Bra, Italy
| | - F Visalli
- Department of Urology, S. Maria Degli Angeli Hospital, Pordenone, Italy
| | - S Rabito
- Department of Urology, Hesperia Hospital, Cure Group, Modena, Italy
| | - S Toso
- Department of Urology, Hesperia Hospital, Cure Group, Modena, Italy
| | - S Caroassai
- Department of Urology, Careggi Hospital, University of Florence, San Luca Nuovo, Florence, Italy
| | - A Mari
- Department of Urology, Careggi Hospital, University of Florence, San Luca Nuovo, Florence, Italy
| | - L Viola
- Department of Urology, Careggi Hospital, University of Florence, San Luca Nuovo, Florence, Italy
| | - B K Somani
- University Hospital Southampton NHS Trust, Tremona Road, Southampton, SO16 6YD, Hampshire, UK
| | - M Carini
- Department of Urology, Careggi Hospital, University of Florence, San Luca Nuovo, Florence, Italy
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Abstract
![]()
Following the impressive development of bulk
lead-based perovskite
photovoltaics, the “perovskite fever” did not spare
nanochemistry. In just a few years, colloidal cesium lead halide perovskite
nanocrystals have conquered researchers worldwide with their easy
synthesis and color-pure photoluminescence. These nanomaterials promise
cheap solution-processed lasers, scintillators, and light-emitting
diodes of record brightness and efficiency. However, that promise
is threatened by poor stability and unwanted reactivity issues, throwing
down the gauntlet to chemists. More generally, Cs–Pb–X
nanocrystals have opened
an exciting chapter in the chemistry of colloidal nanocrystals, because
their ionic nature and broad diversity have challenged many paradigms
established by nanocrystals of long-studied metal chalcogenides, pnictides,
and oxides. The chemistry of colloidal Cs–Pb–X nanocrystals
is synonymous with change: these materials demonstrate an intricate
pattern of shapes and compositions and readily transform under physical
stimuli or the action of chemical agents. In this Account, we walk
through four types of Cs–Pb–X nanocrystal metamorphoses:
change of structure, color, shape, and surface. These transformations
are often interconnected; for example, a change in shape may also
entail a change of color. The ionic bonding, high anion mobility
due to vacancies, and preservation
of cationic substructure in the Cs–Pb–X compounds enable
fast anion exchange reactions, allowing the precise control of the
halide composition of nanocrystals
of perovskites and related compounds (e.g., CsPbCl3 ⇄
CsPbBr3 ⇄ CsPbI3 and Cs4PbCl6 ⇄ Cs4PbBr6 ⇄ Cs4PbI6) and tuning of their absorption edge and bright photoluminescence
across the visible spectrum. Ion exchanges, however, are just one
aspect of a richer chemistry. Cs–Pb–X nanocrystals
are able to capture or release
(in short, trade) ions or even neutral species from or to the surrounding
environment, causing major changes to their structure and properties.
The trade of neutral PbX2 units allows Cs–Pb–X
nanocrystals to cross the boundaries among four different types of
compounds: 4CsX + PbX2 ⇄ Cs4PbBr6 + 3PbX2 ⇄ 4CsPbBr3 + PbX2 ⇄ 4CsPb2X5. These reactions
do not occur at random, because the reactant and product nanocrystals
are connected by the Cs+ cation substructure preservation
principle, stating that ion trade reactions can transform one compound
into another by means of distorting, expanding, or contracting their
shared Cs+ cation substructure. The nanocrystal surface
is a boundary between the core and the
surrounding environment of Cs–Pb–X nanocrystals. The
surface influences nanocrystal stability, optical properties, and
shape. For these reasons, the dynamic surface of Cs–Pb–X
nanocrystals has been studied in detail, especially in CsPbX3 perovskites. Two takeaways have emerged from these studies. First,
the competition between primary alkylammonium and cesium cations for
the surface sites during the CsPbX3 nanocrystal nucleation
and growth governs the cube/plate shape equilibrium. Short-chain acids
and branched amines influence that equilibrium and enable shape-shifting
synthesis of pure CsPbX3 cubes, nanoplatelets, nanosheets,
or nanowires. Second, quaternary ammonium halides are emerging as
superior ligands that extend the shelf life of Cs–Pb–X
colloidal nanomaterials, boost their photoluminescence quantum yield,
and prevent foreign ions from escaping the nanocrystals. That is accomplished
by combining reduced ligand solubility, due to the branched organic
ammonium cation, with the surface-healing capabilities of the halide
counterions, which are small Lewis bases.
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Affiliation(s)
- Stefano Toso
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Dmitry Baranov
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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24
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Imran M, Peng L, Pianetti A, Pinchetti V, Ramade J, Zito J, Di Stasio F, Buha J, Toso S, Song J, Infante I, Bals S, Brovelli S, Manna L. Halide Perovskite-Lead Chalcohalide Nanocrystal Heterostructures. J Am Chem Soc 2021; 143:1435-1446. [PMID: 33440926 PMCID: PMC7844828 DOI: 10.1021/jacs.0c10916] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
![]()
We
report the synthesis of colloidal CsPbX3–Pb4S3Br2 (X = Cl, Br, I) nanocrystal heterostructures,
providing an example of a sharp and atomically resolved epitaxial
interface between a metal halide perovskite and a non-perovskite lattice.
The CsPbBr3–Pb4S3Br2 nanocrystals are prepared by a two-step direct synthesis using preformed
subnanometer CsPbBr3 clusters. Density functional theory
calculations indicate the creation of a quasi-type II alignment at
the heterointerface as well as the formation of localized trap states,
promoting ultrafast separation of photogenerated excitons and carrier
trapping, as confirmed by spectroscopic experiments. Postsynthesis
reaction with either Cl– or I– ions delivers the corresponding CsPbCl3–Pb4S3Br2 and CsPbI3–Pb4S3Br2 heterostructures, thus enabling
anion exchange only in the perovskite domain. An increased structural
rigidity is conferred to the perovskite lattice when it is interfaced
with the chalcohalide lattice. This is attested by the improved stability
of the metastable γ phase (or “black” phase) of
CsPbI3 in the CsPbI3–Pb4S3Br2 heterostructure.
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Affiliation(s)
- Muhammad Imran
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Lucheng Peng
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.,Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen 518060, P. R. China
| | - Andrea Pianetti
- Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, via R. Cozzi 55, 20125 Milano, Italy
| | - Valerio Pinchetti
- Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, via R. Cozzi 55, 20125 Milano, Italy
| | - Julien Ramade
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Juliette Zito
- Department of Nanochemistry, Istituto Italiano di Tecnologia, 16163 Genova, Italy.,Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, 16146 Genova, Italy
| | - Francesco Di Stasio
- Photonic Nanomaterials group, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Joka Buha
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Stefano Toso
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.,International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Jun Song
- Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen 518060, P. R. China
| | - Ivan Infante
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.,Department of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Sara Bals
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.,NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Sergio Brovelli
- Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, via R. Cozzi 55, 20125 Milano, Italy
| | - Liberato Manna
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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25
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Baranov D, Fieramosca A, Yang RX, Polimeno L, Lerario G, Toso S, Giansante C, Giorgi MD, Tan LZ, Sanvitto D, Manna L. Aging of Self-Assembled Lead Halide Perovskite Nanocrystal Superlattices: Effects on Photoluminescence and Energy Transfer. ACS Nano 2021; 15:650-664. [PMID: 33350811 DOI: 10.1021/acsnano.0c06595] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Excitonic coupling, electronic coupling, and cooperative interactions in self-assembled lead halide perovskite nanocrystals were reported to give rise to a red-shifted collective emission peak with accelerated dynamics. Here we report that similar spectroscopic features could appear as a result of the nanocrystal reactivity within the self-assembled superlattices. This is demonstrated by studying CsPbBr3 nanocrystal superlattices over time with room-temperature and cryogenic micro-photoluminescence spectroscopy, X-ray diffraction, and electron microscopy. It is shown that a gradual contraction of the superlattices and subsequent coalescence of the nanocrystals occurs over several days of keeping such structures under vacuum. As a result, a narrow, low-energy emission peak is observed at 4 K with a concomitant shortening of the photoluminescence lifetime due to the energy transfer between nanocrystals. When exposed to air, self-assembled CsPbBr3 nanocrystals develop bulk-like CsPbBr3 particles on top of the superlattices. At 4 K, these particles produce a distribution of narrow, low-energy emission peaks with short lifetimes and excitation fluence-dependent, oscillatory decays. Overall, the aging of CsPbBr3 nanocrystal assemblies dramatically alters their emission properties and that should not be overlooked when studying collective optoelectronic phenomena nor confused with superfluorescence effects.
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Affiliation(s)
- Dmitry Baranov
- Nanochemistry Department, Italian Institute of Technology, Via Morego 30, Genova 16163, Italy
| | - Antonio Fieramosca
- CNR Nanotec, Institute of Nanotechnology, Via Monteroni, Lecce 73100, Italy
| | - Ruo Xi Yang
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Laura Polimeno
- CNR Nanotec, Institute of Nanotechnology, Via Monteroni, Lecce 73100, Italy
- Dipartimento di Matematica e Fisica "E. de Giorgi", Università Del Salento, Campus Ecotekne, Via Monteroni, Lecce 73100, Italy
| | - Giovanni Lerario
- CNR Nanotec, Institute of Nanotechnology, Via Monteroni, Lecce 73100, Italy
| | - Stefano Toso
- Nanochemistry Department, Italian Institute of Technology, Via Morego 30, Genova 16163, Italy
- International Doctoral Program in Science, Università Cattolica del Sacro Cuore, Brescia 25121, Italy
| | - Carlo Giansante
- CNR Nanotec, Institute of Nanotechnology, Via Monteroni, Lecce 73100, Italy
| | - Milena De Giorgi
- CNR Nanotec, Institute of Nanotechnology, Via Monteroni, Lecce 73100, Italy
| | - Liang Z Tan
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Daniele Sanvitto
- CNR Nanotec, Institute of Nanotechnology, Via Monteroni, Lecce 73100, Italy
| | - Liberato Manna
- Nanochemistry Department, Italian Institute of Technology, Via Morego 30, Genova 16163, Italy
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26
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Brescia R, Toso S, Ramasse Q, Manna L, Shamsi J, Downing C, Calzolari A, Bertoni G. Bandgap determination from individual orthorhombic thin cesium lead bromide nanosheets by electron energy-loss spectroscopy. Nanoscale Horiz 2020; 5:1610-1617. [PMID: 33140817 DOI: 10.1039/d0nh00477d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Inorganic lead halide perovskites are promising candidates for optoelectronic applications, due to their high photoluminescence quantum yield and narrow emission line widths. Particularly attractive is the possibility to vary the bandgap as a function of the halide composition and the size or shape of the crystals at the nanoscale. Here we present an aberration-corrected scanning transmission electron microscopy (STEM) and monochromated electron energy-loss spectroscopy (EELS) study of extended nanosheets of CsPbBr3. We demonstrate their orthorhombic crystal structure and their lateral termination with Cs-Br planes. The bandgaps are measured from individual nanosheets, avoiding the effect of the size distribution which is present in standard optical spectroscopy techniques. We find an increase of the bandgap starting at thicknesses below 10 nm, confirming the less marked effect of 1D confinement in nanosheets compared to the 3D confinement observed in quantum dots, as predicted by density functional theory calculations and optical spectroscopy data from ensemble measurements.
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Affiliation(s)
- Rosaria Brescia
- Electron Microscopy Facility, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Stefano Toso
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy and International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Quentin Ramasse
- SuperSTEM, SciTech Daresbury Science and Innovation Campus, Keckwick Lane, Daresbury WA4 4AD, UK. and School of Chemical and Process Engineering & School of Physics, University of Leeds, Leeds LS29JT, UK
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Javad Shamsi
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Clive Downing
- The Advanced Microscopy Laboratory, CRANN, Trinity College Dublin (TCD), Dublin, Ireland
| | - Arrigo Calzolari
- CNR - Istituto Nanoscienze, Via Campi 213/A, 41125 Modena, Italy.
| | - Giovanni Bertoni
- CNR - Istituto Nanoscienze, Via Campi 213/A, 41125 Modena, Italy. and IMEM - CNR, Istituto dei Materiali per l'Elettronica e il Magnetismo, Parco Area delle Scienze 37/A, 43124 Parma, Italy
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27
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Inzillo R, Sighinolfi M, Toso S, Sarchi L, Dourado A, Puliatti S, Turri F, Del Prete C, Ciarlariello S, Amato M, Micali S, De Carne C, Rocco B. 3D Reconstruction models to assess nephromatric score of renal mass: DocDo imaging. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35506-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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28
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Iseppi A, Guarino G, Filippi B, Toso S, Paterlini M, Sighinolfi M, Bozzini G, Micali S, Bianchi G, Rocco B. Evaluation of PSA density for the detection of clinically significant prostate cancer in biopsy-naive patients with PI-RADS 3 lesions. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35366-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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29
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Filippi B, Sighinolfi M, Sarchi L, Morini E, Moschovas M, Toso S, Seetharam B, Rocco B, Patel V. Oncotype DX genomic prostate score and final tumor pathology: A new instrument in pre-radical prostatectomy counseling. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35368-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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30
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Toso S, Akkerman QA, Martín-García B, Prato M, Zito J, Infante I, Dang Z, Moliterni A, Giannini C, Bladt E, Lobato I, Ramade J, Bals S, Buha J, Spirito D, Mugnaioli E, Gemmi M, Manna L. Nanocrystals of Lead Chalcohalides: A Series of Kinetically Trapped Metastable Nanostructures. J Am Chem Soc 2020; 142:10198-10211. [PMID: 32374173 PMCID: PMC7737912 DOI: 10.1021/jacs.0c03577] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 11/28/2022]
Abstract
We report the colloidal synthesis of a series of surfactant-stabilized lead chalcohalide nanocrystals. Our work is mainly focused on Pb4S3Br2, a chalcohalide phase unknown to date that does not belong to the ambient-pressure PbS-PbBr2 phase diagram. The Pb4S3Br2 nanocrystals herein feature a remarkably narrow size distribution (with a size dispersion as low as 5%), a good size tunability (from 7 to ∼30 nm), an indirect bandgap, photoconductivity (responsivity = 4 ± 1 mA/W), and stability for months in air. A crystal structure is proposed for this new material by combining the information from 3D electron diffraction and electron tomography of a single nanocrystal, X-ray powder diffraction, and density functional theory calculations. Such a structure is closely related to that of the recently discovered high-pressure chalcohalide Pb4S3I2 phase, and indeed we were able to extend our synthesis scheme to Pb4S3I2 colloidal nanocrystals, whose structure matches the one that has been published for the bulk. Finally, we could also prepare nanocrystals of Pb3S2Cl2, which proved to be a structural analogue of the recently reported bulk Pb3Se2Br2 phase. It is remarkable that one high-pressure structure (for Pb4S3I2) and two metastable structures that had not yet been reported (for Pb4S3Br2 and Pb3S2Cl2) can be prepared on the nanoscale by wet-chemical approaches. This highlights the important role of colloidal chemistry in the discovery of new materials and motivates further exploration into metal chalcohalide nanocrystals.
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Affiliation(s)
- Stefano Toso
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento
di Matematica e Fisica and Interdisciplinary Laboratories for Advanced
Materials Physics, Università Cattolica
del Sacro Cuore, Via
Musei 41, I-25121 Brescia, Italy
| | - Quinten A. Akkerman
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Beatriz Martín-García
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Mirko Prato
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Juliette Zito
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Ivan Infante
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Department
of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Zhiya Dang
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Anna Moliterni
- Istituto
di Cristallografia−Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Cinzia Giannini
- Istituto
di Cristallografia−Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Eva Bladt
- Electron
Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Ivan Lobato
- Electron
Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Julien Ramade
- Electron
Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Sara Bals
- Electron
Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Joka Buha
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Davide Spirito
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Enrico Mugnaioli
- Center
for Nanotechnology Innovation@NEST, Istituto
Italiano di Tecnologia, Piazza San Silvestro, 12, 56127 Pisa, Italy
| | - Mauro Gemmi
- Center
for Nanotechnology Innovation@NEST, Istituto
Italiano di Tecnologia, Piazza San Silvestro, 12, 56127 Pisa, Italy
| | - Liberato Manna
- Department
of Nanochemistry and Materials Characterization Facility, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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31
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Toso S, Baranov D, Giannini C, Marras S, Manna L. Wide-Angle X-ray Diffraction Evidence of Structural Coherence in CsPbBr 3 Nanocrystal Superlattices. ACS Mater Lett 2019; 1:272-276. [PMID: 32954357 PMCID: PMC7497715 DOI: 10.1021/acsmaterialslett.9b00217] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 07/16/2019] [Indexed: 05/22/2023]
Abstract
Films made of colloidal CsPbBr3 nanocrystals packed in isolated or densely-packed superlattices display a remarkably high degree of structural coherence. The structural coherence is revealed by the presence of satellite peaks accompanying Bragg reflections in wide-angle X-ray diffraction experiments in parallel-beam reflection geometry. The satellite peaks, also called "superlattice reflections", arise from the interference of X-rays diffracted by the atomic planes of the orthorhombic perovskite lattice. The interference is due to the precise spatial periodicity of the nanocrystals separated by organic ligands in the superlattice. The presence of satellite peaks is a fingerprint of the high crystallinity and long-range order of nanocrystals, comparable to those of multilayer superlattices prepared by physical methods. The angular separation between satellite peaks is highly sensitive to changes in the superlattice periodicity. These characteristics of the satellite peaks are exploited to track the superlattice compression under vacuum, as well as to observe the superlattice growth in situ from colloidal solutions by slow solvent evaporation.
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Affiliation(s)
- Stefano Toso
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Dmitry Baranov
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- E-mail:
| | - Cinzia Giannini
- Istituto
di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), via Amendola 122/O, I-70126 Bari, Italy
- E-mail:
| | - Sergio Marras
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- E-mail:
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32
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Baranov D, Toso S, Imran M, Manna L. Investigation into the Photoluminescence Red Shift in Cesium Lead Bromide Nanocrystal Superlattices. J Phys Chem Lett 2019; 10:655-660. [PMID: 30676762 PMCID: PMC6477804 DOI: 10.1021/acs.jpclett.9b00178] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 01/24/2019] [Indexed: 05/22/2023]
Abstract
The formation of cesium lead bromide (CsPbBr3) nanocrystal superlattices (NC SLs) is accompanied by a red shift in the NC photoluminescence (PL). The values of the PL red shift reported in the literature range from none to ∼100 meV without unifying explanation of the differences. Using a combination of confocal PL microcopy and steady-state optical spectroscopies we found that an overall PL red shift of ∼96 meV measured from a macroscopic sample of CsPbBr3 NC SLs has several contributions: ∼ 10-15 meV from a red shift in isolated and clean SLs, ∼ 30 meV from SLs with impurities of bulklike CsPbBr3 crystals on their surface, and up to 50 meV or more of the red shift coming from a photon propagation effect, specifically self-absorption. In addition, a self-assembly technique for growing micron-sized NC SLs on the surface of perfluorodecalin, an inert perfluorinated liquid and an antisolvent for NCs, is described.
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Affiliation(s)
- Dmitry Baranov
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- E-mail:
| | - Stefano Toso
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Muhammad Imran
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Liberato Manna
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- E-mail:
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33
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Pasello G, Vicario G, Gori S, Zustovich F, Bonetti A, Rosetti F, Favaretto A, Oniga F, Bria E, Toso S, Boccalon M, Oliani C, Palazzolo G, Frega S, Basso M, Pertile P, Bortolami A, Verrienti R, Scanni R, Conte P. Compliance to diagnostic and therapeutic pathways and innovative drug recommendations in advanced non-small cell lung cancer: preliminary results from the MOST study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx426.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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34
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Porpiglia F, Manfredi M, Bertolo R, Mele F, Amparore D, Garrou D, Checcucci E, Alleva G, Niculescu G, Piana A, Toso S. Does 3D prostate mp-MRI reconstruction for cognitive robot assisted radical prostatectomy affect oncological outcomes? ACTA ACUST UNITED AC 2017. [DOI: 10.1016/s1569-9056(17)31440-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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Ailianou A, Fitsiori A, Syrogiannopoulou A, Toso S, Viallon M, Merlini L, Beaulieu JY, Vargas MI. Review of the principal extra spinal pathologies causing sciatica and new MRI approaches. Br J Radiol 2012; 85:672-81. [PMID: 22374280 DOI: 10.1259/bjr/84443179] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
In this paper we illustrate the principal extraspinal pathologies causing sciatica and new approaches for the study of structures such as the lumbosacral plexus (LSP). Visualisation of the LSP in its entirety is difficult with conventional two-dimensional MRI sequences owing to its oblique orientation. In our institution, we have found that the utilisation of three-dimensional short tau inversion-recovery sampling perfection with application-optimised contrasts using different flip angle evolutions sequence is helpful, allowing multiplanar and maximum intensity projection reconstructions in the coronal oblique plane and curvilinear reformats through the plexus. Diffusion tensor imaging enables the observation of microstructural changes and can be useful in surgical planning. The normal anatomy of the LSP, its different extraspinal pathologies and differential diagnoses are thoroughly presented.
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Affiliation(s)
- A Ailianou
- Department of Radiology, Geneva University Hospital and University of Geneva, Geneva, Switzerland
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36
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Bononi A, Gusella M, Modena I, Bolzonella C, Barile C, Crepaldi G, Menon D, Stievano L, Toso S, Pasini F. Pharmacokinetic study of pegylated liposomal doxorubicin (PLD) in patients over 70: Association with increasing age and cutaneous toxicity. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.9155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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37
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Bononi A, Lanza F, Ferrari L, Gusella M, Gilli G, Abbasciano V, Campioni D, Russo A, Menon D, Albertini F, Stievano L, Barile C, Crepaldi G, Toso S, Ferrazzi E, Pasini F. Predictive value of hematological and phenotypical parameters on postchemotherapy leukocyte recovery. Cytometry 2009; 76:328-33. [DOI: 10.1002/cyto.b.20476] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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38
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Abstract
An erythrocyte leucine aminopeptidase (Rbc LAP) electrophoretic polymorphism was detected in Italian wild boars, Sus scrofa. Such a polymorphism has not previously been reported in the domestic pig. It is suggested that this locus could be a marker for genetic differences between the domestic and the wild forms of Sus scrofa.
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39
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Bononi A, Gusella M, Lanza F, Menon D, Albertini F, Stievano L, Ferrari L, Toso S, Ferrazzi E, Pasini F. Prophylactic use of filgrastim at nadir: Impact of haematological parameters on recovery of grade IV neutropenia induced by standard dose chemotherapy. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.20659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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40
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Gusella M, Crepaldi G, Barile C, Bononi A, Menon D, Toso S, Scapoli D, Stievano L, Ferrazzi E, Grigoletto F, Ferrari M, Padrini R. Pharmacokinetic and demographic markers of 5-fluorouracil toxicity in 181 patients on adjuvant therapy for colorectal cancer. Ann Oncol 2006; 17:1656-60. [PMID: 16968871 DOI: 10.1093/annonc/mdl284] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The relationship between 5-fluorouracil (5-FU) pharmacokinetics and toxicity following i.v. bolus administration has not been extensively studied. PATIENTS AND METHODS One hundred and eighty-one patients on adjuvant therapy with 5-FU plus leucovorin for colorectal cancer were the study population. 5-FU pharmacokinetics was determined on day 2 of the first, third, and fifth cycles; type and the grade of adverse reactions were recorded on the next cycle. RESULTS The 5-FU area under the curve (AUC) measured at the first cycle ranged between 146 and 1236 mg x min/l and was significantly correlated with drug dose, patients' body weight (BW) and gender, females having higher AUCs. These covariates explained only 23% of AUC variability. AUC and age were the only covariates which discriminated between toxic (grade > or =2) and nontoxic cycles (grade <2), with an optimal AUC cut-off value of 596 mg x min/l. Such a correlation was lost during the next cycles following dose reduction because of toxicity in 80 patients. CONCLUSIONS A method for calculating the initial 5-FU dose is proposed which takes into account patient BW, gender and a target AUC of 596 mg x min/l. Nevertheless, it appears that a substantial part of 5-FU toxicity is not linked to pharmacokinetic factors and dose adjustments must still be on the basis of careful clinical surveillance.
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Affiliation(s)
- M Gusella
- Oncology Division, Rovigo General Hospital, Rovigo, Italy.
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41
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Abstract
We investigated the effect of body mass, spring and summer total rainfall, birth period, and local population density on the survival of 130 roe deer ( Capreolus capreolus (L., 1758)) fawns captured over seven fawning seasons (1997–2003) and radio-monitored daily. We modelled survival using the program MARK, incorporating biological questions into different models, following a priori hypotheses. The best model was selected using Akaike’s information criterion. The population was surveyed by counts and estimates were obtained using mark–resight methods. Weekly survival of roe deer fawns exhibits a pseudo-threshold time trend. Probability of survival is low (0.33 ± 0.0046) in summer, increases (0.79 ± 0.0021) in fall, and approaches the highest value typical of adult survival (0.90 ± 0.00091 and 0.96 ± 0.00021 by the end of March and May, respectively) during early spring following birth. The final model predicts that survival of roe deer fawns is positively affected by total precipitation in spring and body mass under a pseudo-threshold time variation pattern. In contrast with other studies, we did not detect any effect of population density on survival of fawns. This study contributes to the scarce knowledge about the performance of roe deer populations in Mediterranean ecosystems, providing evidence that climate variables and individual characteristics shape the vital rates of roe deer populations.
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Affiliation(s)
- E. Raganella-Pelliccioni
- INFS (Istituto Nazionale per la Fauna Selvatica), Via Ca’ Fornacetta 9, 40064 Ozzano Emilia, Bologna, Italy
- Dipartimento di Biologia Animale e dell’Uomo, Università ‘La Sapienza’, Viale dell’Università 32, 00185 Roma, Italy
| | - L. Boitani
- INFS (Istituto Nazionale per la Fauna Selvatica), Via Ca’ Fornacetta 9, 40064 Ozzano Emilia, Bologna, Italy
- Dipartimento di Biologia Animale e dell’Uomo, Università ‘La Sapienza’, Viale dell’Università 32, 00185 Roma, Italy
| | - S. Toso
- INFS (Istituto Nazionale per la Fauna Selvatica), Via Ca’ Fornacetta 9, 40064 Ozzano Emilia, Bologna, Italy
- Dipartimento di Biologia Animale e dell’Uomo, Università ‘La Sapienza’, Viale dell’Università 32, 00185 Roma, Italy
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42
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Menaldo G, Rubello D, Toso S, Migliorini V, Ravasi MA. 18-FDG PET-CAT scan detection of unknown primary tumor. A case report. Suppl Tumori 2005; 4:S168. [PMID: 16437966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Affiliation(s)
- G Menaldo
- Surgical ENT Department, S Maria della Misericordia General Hospital, Rovigo
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Nanni C, Rubello D, Castellucci P, Farsad M, Franchi R, Toso S, Barile C, Rampin L, Nibale O, Fanti S. Role of 18F-FDG PET–CT imaging for the detection of an unknown primary tumour: preliminary results in 21 patients. Eur J Nucl Med Mol Imaging 2005; 32:589-92. [PMID: 15726356 DOI: 10.1007/s00259-004-1734-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2004] [Accepted: 11/16/2004] [Indexed: 10/25/2022]
Abstract
PURPOSE Metastatic cancer of unknown primary origin is a syndrome characterised by a poor prognosis, with a typical survival rate from diagnosis of no longer than 1 year. Only 20-27% of primary tumours are identified by conventional radiological imaging. By contrast, it has been reported that 18F-fluorodeoxyglucose positron emission tomography (FDG PET) allows the identification of 24-40% of otherwise unrecognised primary tumours. To our knowledge, the studies on this topic have been conducted using 18F-FDG PET imaging alone. The aim of this study was to evaluate the potential additional diagnostic role of fused 18F-FDG PET-CT imaging for the detection of metastatic occult primary tumours. METHODS The study population consisted of 21 consecutive patients with biopsy-proven metastatic disease and negative conventional diagnostic procedures. Each patient underwent a PET scan, carried out according to a standard procedure (6 h of fasting, i.v. injection of 370 MBq of 18F-FDG and image acquisition with a dedicated PET-CT scanner for 4 min per bed position). RESULTS 18F-FDG PET-CT detected the occult primary tumour in 12 patients (57% of cases), providing a detection rate higher than that reported with any other imaging modality, including conventional 18F-FDG PET. CONCLUSION The favourable results of this study need to be confirmed in larger patient populations with long-term follow-up.
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Affiliation(s)
- C Nanni
- Nuclear Medicine Service-PET Unit, S. Orsola-Malpighi Bologna Hospital, Bologna, Italy
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Santo A, Salmaso F, Giovannini M, Oliani C, Toso S, Zovato S, Calabrò F, Terzi A, Cartei G, Cetto GL. Gefitinib (ZD1839) as compassionate use therapy in patients (pts) with advanced non-small-cell-lung-cancer (NSCLC) after failing prior chemotherapy. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.7324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- A. Santo
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
| | - F. Salmaso
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
| | - M. Giovannini
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
| | - C. Oliani
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
| | - S. Toso
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
| | - S. Zovato
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
| | - F. Calabrò
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
| | - A. Terzi
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
| | - G. Cartei
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
| | - G. L. Cetto
- University of Verona, Dept of Medical Oncology, Verona, Italy; Ospedale Busonera-U.O. Medical Oncology, Padua, Italy; Azienda Ospedaliera di Rovigo/U.O. of Oncology, Rovigo, Italy; Az. Osped. di Verona/U.O. Chirurgia Toracica, Verona, Italy
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45
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Bononi A, Lanza F, Crepaldi G, Gilli G, Menon D, Toso S, Scapoli D, Nocera F, Marenda B, Scaranaro J, Giuliano G, Ferrazzi E. LUCs Values Can Predict the Response to G-CSF of Cancer Patients Treated with Standard Dose Chemotherapy. Tumori 2001. [DOI: 10.1177/030089160108700644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
| | - F Lanza
- University of Ferrara, Italy
| | | | - G Gilli
- University of Ferrara, Italy
| | | | - S Toso
- Regional Hospital of Rovigo
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Bononi A, Lanza F, Dabusti M, Gusella M, Gilli G, Menon D, Toso S, Crepaldi G, Marenda B, Abbasciano V, Ferrazzi E. Increased myeloperoxidase index and large unstained cell values can predict the neutropenia phase of cancer patients treated with standard dose chemotherapy. Cytometry 2001; 46:92-7. [PMID: 11309818 DOI: 10.1002/cyto.1070] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE The objective of this study was to better understand neutropenia induced by standard dose chemotherapy and to verify if there are any hematological parameters for defining the phase and possibly the duration of neutropenia. METHODS The kinetics of large unstained cells (LUCs) and lymphocytes was evaluated in 324 blood counts of 56 chemotherapy cycles through the use of a Technicon H2 or an ADVIA 120 hematology analyzer. Blood samples collected during the neutropenia phase were also studied by flow cytometry using a large panel of monoclonal antibodies. Parametric and nonparametric statistics were employed to compare the different variables analyzed. A linear regression between each variable before and after nadir and a simple linear correlation among the same variables in the neutropenic and recovery phase were performed. RESULTS The percentage of LUCs reaches the higher value at nadir and the difference between the mean value of prenadir and nadir is statistically significant (P <.01). The number of LUCs increases during the pre and postnadir phase. Lymphocytes number appears stable in the prenadir phase. The MPXI index increases in the prenadir phase and falls at nadir and this difference is statistically significant(P <.01). LUCs are correlated with blasts and CD34+ cells in the pre and postnadir phase, with CD3+/CD4+ cells in the prenadir phase, and with CD2+/CD56+ in the postnadir phase. CONCLUSIONS Our data have shown that the estimation of both percentage of LUCs and MPXI can predict the neutropenia phase and orient for its duration. The lymphocyte number may be regarded as a parameter of risk of fever after day 5 of chemotherapy and the number of blood CD34+ cells may be predicted by LUC count.
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Affiliation(s)
- A Bononi
- Medical Oncology Unit, Regional Hospital of Rovigo, Rovigo, Italy
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Abstract
We report a case of a 50-year-old man with pretreated adenocarcinoma of the lung, who developed fatal neutropenic enterocolitis (typhlitis) after a standard dose of the cytotoxic drug vinorelbine. Blood cultures were negative for all microorganisms tested for. Stool cultures were negative for enteric rods but direct examination of fresh stool revealed the presence of Giardia lamblia. Abdominal pain and diarrhoea developed very rapidly while the patient was only moderately neutropenic. Metronidazole was prescribed without clinical benefit: the abdominal pain remained stable. The duration of neutropenia was very short (4 days). The abdominal catastrophe ending in shock occurred after complete recovery of the neutrophil count. Neutropenic colitis has been reported with increasing frequency in solid tumours after the introduction of taxanes. This complication has been observed mainly in phase I studies, near the maximally tolerated doses (MTD). The combined use of vinorelbine has recently been reported to exacerbate the toxic effects of taxane on the colon. The case presented here demonstrates that typhlitis can occur even with vinorelbine alone, used at a standard recommended dose (30 mg/m2).
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Affiliation(s)
- E Ferrazzí
- Unità Operativa di Oncologia Medica, Rovigo General Hospital, Azienda ULSS 18, Via Tre Martiri 140, 45100 Rovigo, Italy.
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Toso S, Piccoli A, Gusella M, Menon D, Bononi A, Crepaldi G, Ferrazzi E. Altered tissue electric properties in lung cancer patients as detected by bioelectric impedance vector analysis. Nutrition 2000; 16:120-4. [PMID: 10696635 DOI: 10.1016/s0899-9007(99)00230-0] [Citation(s) in RCA: 137] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Modifications of body composition are frequent in cancer patients. Bioelectric impedance analysis can specifically detect changes in tissue electric properties, which may be associated with outcome. We evaluated the distribution of the impedance vectors from 63 adult male patients with lung cancer, stages IIIB (33 patients) and IV (30 patients), in supportive therapy. Body weight change over the previous 6 m.o. was the same in both groups (stable/increased 36% and decreased in 62%). Patients were compared with 56 healthy subjects matched for gender, age, and body mass index (25 kg/m2). Impedance measurements (standard tetrapolar electrode placement on the hand and foot) were made with 50-kHz alternating currents. The resistance and reactance of the vector components were standardized by the height of the subjects and were plotted as resistance/reactance graphs. The impedance vector distribution was the same in patients with either stage IIIB or IV cancer. The mean vector position differed significantly between cancer patients and control subjects (Hotelling T2 test, P < 0.01) because of a reduced reactance component (i.e., a smaller phase angle) with preserved resistance component in both cancer groups. Patients with a phase angle smaller than 4.5 degrees had a significantly shorter, i.e., 18 m.o., survival. Body weight loss was not significantly associated with survival. In conclusion, impedance vectors from lung cancer patients were characterized by a reduced reactance component. The altered tissue electric properties were more predictive than weight loss of prognosis.
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Affiliation(s)
- S Toso
- Division of Medical Oncology, General Hospital, Rovigo, Italy
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Bolzonella C, Gusella M, Bononi A, Loregian A, Crepaldi G, Toso S, Palù G, Ferrazzi E. Quantitative analysis of ribonucleoside triphosphates in human lymphoid cells by micellar electrokinetic capillary chromatography. Ann Clin Biochem 1999; 36 ( Pt 5):636-41. [PMID: 10505215 DOI: 10.1177/000456329903600512] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Micellar electrokinetic capillary chromatography (MECC) was applied to develop an analytical method for quantitation of ribonucleoside triphosphates (rNTPs) in human lymphoid cells obtained from patients with B-chronic lymphocytic leukaemia (B-CLL) and cutaneous lymphomas. The results of this analysis showed a significant depression of intracellular rNTPs in patients with B-CLL, compared with rNTPs of healthy controls. These data are in agreement with other studies in which rNTP separations were performed with traditional high-performance liquid chromatography. MECC has proved to be a useful tool for intracellular rNTPs determination, revealing possible new applications in the study of the metabolic state of human cells. In addition, this method can be useful in monitoring the effect of many drugs (antiviral, antineoplastic) which interfere with nucleotide metabolism.
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Affiliation(s)
- C Bolzonella
- Division of Medical Oncology, General Hospital, Rovigo, Italy
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50
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Abbasciano V, Sartori S, Trevisani L, Nielsen I, Ferrazzi E, Bononi A, Toso S, Crepaldi G, Bianchi MP, Gilli G, Zavagli G. Neuron-specific enolase, thymidine kinase, and tissue polypeptide-specific antigen in diagnosis and response to chemotherapy of small-cell lung cancer. Cancer Detect Prev 1999; 23:309-15. [PMID: 10403902 DOI: 10.1046/j.1525-1500.1999.99031.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The clinical usefulness of neuron-specific enolase (NSE), thymidine kinase (TK), and tissue polypeptide-specific antigen (TPS) was investigated in 41 patients (53-80 years old) with recently discovered small-cell lung cancer (SCLC). Eleven patients exhibited limited disease (LD) and 30 extensive disease (ED). Serum samples for NSE, TPS (immunoradiometric assay), and TK (radioenzymatic assay) evaluations were drawn from all patients at the time of diagnosis and before each cycle of chemotherapy in the treated patients. Therapy consisted of i.v. carboplatin 300 mg/m2 on the first day and i.v. etoposide 120 mg/m2 from the first to the third day every 3 weeks. Nine patients refused or were not eligible for chemotherapy. Five patients received only one course and showed no response (NR); 9 patients received two courses; 18 patients received three or more courses. In the last group, complete remission (CR) was obtained in 9 cases, partial remission (PR) in 18 cases. The tumor markers studied did not show any significant difference in distinguishing LD from ED. NSE and TPS were significantly more often abnormal than TK, either at the time of diagnosis (p < 0.05) or in PR or NR patients (p < 0.05). In relation to chemotherapy response, NSE and TPS serum patterns were shown to be more reliable than TK in PR (p < 0.05) and NR patients (computed error between 10% and 15%). No significant difference was observed between serum NSE and TPS patterns. Serum NSE and TPS seem to be more useful in the diagnosis and follow-up of SCLC patients undergoing chemotherapy. Further trials are necessary to ascertain whether the associated assessment of NSE and TPS can add useful information to that provided by the assessment of NSE alone.
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Affiliation(s)
- V Abbasciano
- Istituto di Medicina Interna II, Università di Ferrara, Ferrara, Italy
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